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/*
Fabrix - An annotated version of the original JSLinux which is Copyright (c) 2011 Fabrice Bellard
x86 CPU (circa 486 sans FPU) Emulator
-----------------------------------------
Useful references:
------------------------------
http://ref.x86asm.net/coder32.html#xC4
http://en.wikibooks.org/wiki/X86_Assembly/X86_Architecture
http://en.wikipedia.org/wiki/X86
http://en.wikipedia.org/wiki/Control_register
http://en.wikipedia.org/wiki/X86_assembly_language
http://en.wikipedia.org/wiki/Translation_lookaside_buffer
http://bellard.org/jslinux/tech.html :
""
The exact restrictions of the emulated
CPU are: No FPU/MMX/SSE No segment limit and right checks when
accessing memory (Linux does not rely on them for memory protection,
so it is not an issue. The x86 emulator of QEMU has the same
restriction). No single-stepping I added some tricks which are not
present in QEMU to be more precise when emulating unaligned
load/stores at page boundaries. The condition code emulation is also
more efficient than the one in QEMU.
""
Hints for Bit Twiddling
-----------------------------------------------------
X & -65281 = mask for lower 8 bits for 32bit X
X & 3 = mask for lower 2 bits for single byte X
*/
var parity_bit_check_array = [1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1];
var used_by_shift16 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14];
var used_by_shift8 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2, 3, 4];
function CPU_X86() {
var i, tlb_size;
/*
AX/EAX/RAX: Accumulator
BX/EBX/RBX: Base index (for use with arrays)
CX/ECX/RCX: Counter
DX/EDX/RDX: Data/general
SI/ESI/RSI: Source index for string operations.
DI/EDI/RDI: Destination index for string operations.
SP/ESP/RSP: Stack pointer for top address of the stack.
BP/EBP/RBP: Stack base pointer for holding the address of the current stack frame.
(((IP/EIP/RIP: Instruction pointer. Holds the program counter, the current instruction address.)))-->handled separately in "this.eip"
*/
this.regs = new Array(); // EAX, EBX, ECX, EDX, ESI, EDI, ESP, EBP 32bit registers
for (i = 0; i < 8; i++) {
this.regs[i] = 0;
}
this.eip = 0; //instruction pointer
this.cc_op = 0; // current op
this.cc_dst = 0; // current dest
this.cc_src = 0; // current src
this.cc_op2 = 0; // current op, byte2
this.cc_dst2 = 0; // current dest, byte2
this.df = 1;
/*
0. CF : Carry Flag. Set if the last arithmetic operation carried (addition) or borrowed (subtraction) a
bit beyond the size of the register. This is then checked when the operation is followed with
an add-with-carry or subtract-with-borrow to deal with values too large for just one register to contain.
2. PF : Parity Flag. Set if the number of set bits in the least significant byte is a multiple of 2.
4. AF : Adjust Flag. Carry of Binary Code Decimal (BCD) numbers arithmetic operations.
6. ZF : Zero Flag. Set if the result of an operation is Zero (0).
7. SF : Sign Flag. Set if the result of an operation is negative.
8. TF : Trap Flag. Set if step by step debugging.
9. IF : Interruption Flag. Set if interrupts are enabled.
10. DF : Direction Flag. Stream direction. If set, string operations will decrement their pointer rather
than incrementing it, reading memory backwards.
11. OF : Overflow Flag. Set if signed arithmetic operations result in a value too large for the register to contain.
12-13. IOPL : I/O Privilege Level field (2 bits). I/O Privilege Level of the current process.
14. NT : Nested Task flag. Controls chaining of interrupts. Set if the current process is linked to the next process.
16. RF : Resume Flag. Response to debug exceptions.
17. VM : Virtual-8086 Mode. Set if in 8086 compatibility mode.
18. AC : Alignment Check. Set if alignment checking of memory references is done.
19. VIF : Virtual Interrupt Flag. Virtual image of IF.
20. VIP : Virtual Interrupt Pending flag. Set if an interrupt is pending.
21. ID : Identification Flag. Support for CPUID instruction if can be set.
*/
this.eflags = 0x2; // EFLAG register
this.cycle_count = 0;
this.hard_irq = 0;
this.hard_intno = -1;
this.cpl = 0; //cpu privilege level
/*
Control Registers
==========================================================================================
*/
/*
31 PG Paging If 1, enable paging and use the CR3 register, else disable paging
30 CD Cache disable Globally enables/disable the memory cache
29 NW Not-write through Globally enables/disable write-back caching
18 AM Alignment mask Alignment check enabled if AM set, AC flag (in EFLAGS register) set, and privilege level is 3
16 WP Write protect Determines whether the CPU can write to pages marked read-only
5 NE Numeric error Enable internal x87 floating point error reporting when set, else enables PC style x87 error detection
4 ET Extension type On the 386, it allowed to specify whether the external math coprocessor was an 80287 or 80387
3 TS Task switched Allows saving x87 task context only after x87 instruction used after task switch
2 EM Emulation If set, no x87 floating point unit present, if clear, x87 FPU present
1 MP Monitor co-processor Controls interaction of WAIT/FWAIT instructions with TS flag in CR0
0 PE Protected Mode Enable If 1, system is in protected mode, else system is in real mode
*/
this.cr0 = (1 << 0); //control register 0:
/* CR2
Page Fault Linear Address (PFLA) When a page fault occurs,
the address the program attempted to access is stored in the
CR2 register. */
this.cr2 = 0; // control register 2
/* CR3
Used when virtual addressing is enabled, hence when the PG
bit is set in CR0. CR3 enables the processor to translate
virtual addresses into physical addresses by locating the page
directory and page tables for the current task. Typically, the
upper 20 bits of CR3 become the page directory base register
(PDBR), which stores the physical address of the first page
directory entry. */
this.cr3 = 0; // control register 3:
/* CR4
Used in protected mode to control operations such as virtual-8086 support, enabling I/O breakpoints,
page size extension and machine check exceptions.
Bit Name Full Name Description
18 OSXSAVE XSAVE and Processor Extended States Enable
17 PCIDE PCID Enable If set, enables process-context identifiers (PCIDs).
14 SMXE SMX Enable
13 VMXE VMX Enable
10 OSXMMEXCPT Operating System Support for Unmasked SIMD Floating-Point Exceptions If set, enables unmasked SSE exceptions.
9 OSFXSR Operating system support for FXSAVE and FXSTOR instructions If set, enables SSE instructions and fast FPU save & restore
8 PCE Performance-Monitoring Counter enable
If set, RDPMC can be executed at any privilege level, else RDPMC can only be used in ring 0.
7 PGE Page Global Enabled If set, address translations (PDE or PTE records) may be shared between address spaces.
6 MCE Machine Check Exception If set, enables machine check interrupts to occur.
5 PAE Physical Address Extension
If set, changes page table layout to translate 32-bit virtual addresses into extended 36-bit physical addresses.
4 PSE Page Size Extensions If unset, page size is 4 KB, else page size is increased to 4 MB (ignored with PAE set).
3 DE Debugging Extensions
2 TSD Time Stamp Disable
If set, RDTSC instruction can only be executed when in ring 0, otherwise RDTSC can be used at any privilege level.
1 PVI Protected-mode Virtual Interrupts If set, enables support for the virtual interrupt flag (VIF) in protected mode.
0 VME Virtual 8086 Mode Extensions If set, enables support for the virtual interrupt flag (VIF) in virtual-8086 mode.
*/
this.cr4 = 0; // control register 4
/*
Segment registers:
ES: Extra
CS: Code
SS: Stack
DS: Data
FS: Extra
GS: Extra
(and in this VM,
LDT
TR
)
Fun facts, these are rarely used in the wild due to nearly exclusive use of paging in protected and long mode.
However, chrome's Native Client uses them to sandbox native code memory access.
*/
this.segs = new Array(); // [" ES", " CS", " SS", " DS", " FS", " GS", "LDT", " TR"]
for (i = 0; i < 7; i++) {
this.segs[i] = {selector: 0, base: 0, limit: 0, flags: 0};
}
this.segs[2].flags = (1 << 22);
this.segs[1].flags = (1 << 22);
// descriptor registers (GDTR, LDTR, IDTR) ?
this.idt = {base: 0, limit: 0};
this.gdt = {base: 0, limit: 0};
this.ldt = {selector: 0, base: 0, limit: 0, flags: 0};
//task register?
this.tr = {selector: 0, base: 0, limit: 0, flags: 0};
this.halted = 0;
this.phys_mem = null;
/*
A translation lookaside buffer (TLB) is a CPU cache that memory
management hardware uses to improve virtual address translation
speed.
A TLB has a fixed number of slots that contain page table
entries, which map virtual addresses to physical addresses. The
virtual memory is the space seen from a process. This space is
segmented in pages of a prefixed size. The page table
(generally loaded in memory) keeps track of where the virtual
pages are loaded in the physical memory. The TLB is a cache of
the page table; that is, only a subset of its content are
stored.
*/
tlb_size = 0x100000; //1e6*4096 ~= 4GB total memory possible?
this.tlb_read_kernel = new Int32Array(tlb_size);
this.tlb_write_kernel = new Int32Array(tlb_size);
this.tlb_read_user = new Int32Array(tlb_size);
this.tlb_write_user = new Int32Array(tlb_size);
for (i = 0; i < tlb_size; i++) {
this.tlb_read_kernel[i] = -1;
this.tlb_write_kernel[i] = -1;
this.tlb_read_user[i] = -1;
this.tlb_write_user[i] = -1;
}
this.tlb_pages = new Int32Array(2048);
this.tlb_pages_count = 0;
}
/* Allocates a memory chunnk new_mem_size bytes long and makes 8,16,32 bit array references into it */
CPU_X86.prototype.phys_mem_resize = function(new_mem_size) {
this.mem_size = new_mem_size;
new_mem_size += ((15 + 3) & ~3);
this.phys_mem = new ArrayBuffer(new_mem_size);
this.phys_mem8 = new Uint8Array(this.phys_mem, 0, new_mem_size);
this.phys_mem16 = new Uint16Array(this.phys_mem, 0, new_mem_size / 2);
this.phys_mem32 = new Int32Array(this.phys_mem, 0, new_mem_size / 4);
};
CPU_X86.prototype.ld8_phys = function(mem8_loc) { return this.phys_mem8[mem8_loc]; };
CPU_X86.prototype.st8_phys = function(mem8_loc, x) { this.phys_mem8[mem8_loc] = x; };
CPU_X86.prototype.ld32_phys = function(mem8_loc) { return this.phys_mem32[mem8_loc >> 2]; };
CPU_X86.prototype.st32_phys = function(mem8_loc, x) { this.phys_mem32[mem8_loc >> 2] = x; };
CPU_X86.prototype.tlb_set_page = function(mem8_loc, ha, ia, ja) {
var i, x, j;
ha &= -4096;
mem8_loc &= -4096;
x = mem8_loc ^ ha;
i = mem8_loc >>> 12;
if (this.tlb_read_kernel[i] == -1) {
if (this.tlb_pages_count >= 2048) {
this.tlb_flush_all1((i - 1) & 0xfffff);
}
this.tlb_pages[this.tlb_pages_count++] = i;
}
this.tlb_read_kernel[i] = x;
if (ia) {
this.tlb_write_kernel[i] = x;
} else {
this.tlb_write_kernel[i] = -1;
}
if (ja) {
this.tlb_read_user[i] = x;
if (ia) {
this.tlb_write_user[i] = x;
} else {
this.tlb_write_user[i] = -1;
}
} else {
this.tlb_read_user[i] = -1;
this.tlb_write_user[i] = -1;
}
};
CPU_X86.prototype.tlb_flush_page = function(mem8_loc) {
var i;
i = mem8_loc >>> 12;
this.tlb_read_kernel[i] = -1;
this.tlb_write_kernel[i] = -1;
this.tlb_read_user[i] = -1;
this.tlb_write_user[i] = -1;
};
CPU_X86.prototype.tlb_flush_all = function() {
var i, j, n, ka;
ka = this.tlb_pages;
n = this.tlb_pages_count;
for (j = 0; j < n; j++) {
i = ka[j];
this.tlb_read_kernel[i] = -1;
this.tlb_write_kernel[i] = -1;
this.tlb_read_user[i] = -1;
this.tlb_write_user[i] = -1;
}
this.tlb_pages_count = 0;
};
CPU_X86.prototype.tlb_flush_all1 = function(la) {
var i, j, n, ka, ma;
ka = this.tlb_pages;
n = this.tlb_pages_count;
ma = 0;
for (j = 0; j < n; j++) {
i = ka[j];
if (i == la) {
ka[ma++] = i;
} else {
this.tlb_read_kernel[i] = -1;
this.tlb_write_kernel[i] = -1;
this.tlb_read_user[i] = -1;
this.tlb_write_user[i] = -1;
}
}
this.tlb_pages_count = ma;
};
/* writes ASCII string in na into memory location mem8_loc */
CPU_X86.prototype.write_string = function(mem8_loc, na) {
var i;
for (i = 0; i < na.length; i++) {
this.st8_phys(mem8_loc++, na.charCodeAt(i) & 0xff);
}
this.st8_phys(mem8_loc, 0);
};
// Represents numeric value ga as n-digit HEX
function hex_rep(x, n) {
var i, s;
var h = "0123456789ABCDEF";
s = "";
for (i = n - 1; i >= 0; i--) {
s = s + h[(x >>> (i * 4)) & 15];
}
return s;
}
function _4_bytes_(n) { return hex_rep(n, 8);} // Represents 8-hex bytes of n
function _2_bytes_(n) { return hex_rep(n, 2);} // Represents 4-hex bytes of n
function _1_byte_(n) { return hex_rep(n, 4);} // Represents 2-hex bytes of n
CPU_X86.prototype.dump_short = function() {
console.log(" EIP=" + _4_bytes_(this.eip) + " EAX=" + _4_bytes_(this.regs[0])
+ " ECX=" + _4_bytes_(this.regs[1]) + " EDX=" + _4_bytes_(this.regs[2]) + " EBX=" + _4_bytes_(this.regs[3]));
console.log(" EFL=" + _4_bytes_(this.eflags) + " ESP=" + _4_bytes_(this.regs[4])
+ " EBP=" + _4_bytes_(this.regs[5]) + " ESI=" + _4_bytes_(this.regs[6]) + " EDI=" + _4_bytes_(this.regs[7]));
};
CPU_X86.prototype.dump = function() {
var i, sa, na;
var ta = [" ES", " CS", " SS", " DS", " FS", " GS", "LDT", " TR"];
this.dump_short();
console.log("TSC=" + _4_bytes_(this.cycle_count) + " OP=" + _2_bytes_(this.cc_op)
+ " SRC=" + _4_bytes_(this.cc_src) + " DST=" + _4_bytes_(this.cc_dst)
+ " OP2=" + _2_bytes_(this.cc_op2) + " DST2=" + _4_bytes_(this.cc_dst2));
console.log("CPL=" + this.cpl + " CR0=" + _4_bytes_(this.cr0)
+ " CR2=" + _4_bytes_(this.cr2) + " CR3=" + _4_bytes_(this.cr3) + " CR4=" + _4_bytes_(this.cr4));
na = "";
for (i = 0; i < 8; i++) {
if (i == 6)
sa = this.ldt;
else if (i == 7)
sa = this.tr;
else
sa = this.segs[i];
na += ta[i] + "=" + _1_byte_(sa.selector) + " " + _4_bytes_(sa.base) + " "
+ _4_bytes_(sa.limit) + " " + _1_byte_((sa.flags >> 8) & 0xf0ff);
if (i & 1) {
console.log(na);
na = "";
} else {
na += " ";
}
}
sa = this.gdt;
na = "GDT= " + _4_bytes_(sa.base) + " " + _4_bytes_(sa.limit) + " ";
sa = this.idt;
na += "IDT= " + _4_bytes_(sa.base) + " " + _4_bytes_(sa.limit);
console.log(na);
};
CPU_X86.prototype.exec_internal = function(N_cycles, va) {
/*
x,y,z,v are either just general non-local values or their exact specialization is unclear, esp. x,y look like they're used for everything
*/
var cpu, mem8_loc, regs;
var _src, _dst, _op, _op2, _dst2;
var CS_flags, mem8, register_0, OPbyte, register_1, x, y, z, conditional_var, cycles_left, exit_code, v;
var CS_base, SS_base, SS_mask, FS_usage_flag, init_CS_flags, iopl;//io privilege level
var phys_mem8, last_tlb_val;
var phys_mem16, phys_mem32;
var tlb_read_kernel, tlb_write_kernel, tlb_read_user, tlb_write_user, _tlb_read_, _tlb_write_;
/* Storing XOR values as small lookup table is software equivalent of a Translation Lookaside Buffer (TLB) */
function __ld_8bits_mem8_read() {
var tlb_lookup;
do_tlb_set_page(mem8_loc, 0, cpu.cpl == 3);
tlb_lookup = _tlb_read_[mem8_loc >>> 12] ^ mem8_loc;
return phys_mem8[tlb_lookup];
}
function ld_8bits_mem8_read() {
var last_tlb_val;
return (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
function __ld_16bits_mem8_read() {
var x;
x = ld_8bits_mem8_read();
mem8_loc++;
x |= ld_8bits_mem8_read() << 8;
mem8_loc--;
return x;
}
function ld_16bits_mem8_read() {
var last_tlb_val;
return (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) | mem8_loc) & 1 ? __ld_16bits_mem8_read() : phys_mem16[(mem8_loc ^ last_tlb_val) >> 1]);
}
function __ld_32bits_mem8_read() {
var x;
x = ld_8bits_mem8_read();
mem8_loc++;
x |= ld_8bits_mem8_read() << 8;
mem8_loc++;
x |= ld_8bits_mem8_read() << 16;
mem8_loc++;
x |= ld_8bits_mem8_read() << 24;
mem8_loc -= 3;
return x;
}
function ld_32bits_mem8_read() {
var last_tlb_val;
return (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) | mem8_loc) & 3 ? __ld_32bits_mem8_read() : phys_mem32[(mem8_loc ^ last_tlb_val) >> 2]);
}
function __ld_8bits_mem8_write() {
var tlb_lookup;
do_tlb_set_page(mem8_loc, 1, cpu.cpl == 3);
tlb_lookup = _tlb_write_[mem8_loc >>> 12] ^ mem8_loc;
return phys_mem8[tlb_lookup];
}
function ld_8bits_mem8_write() {
var tlb_lookup;
return ((tlb_lookup = _tlb_write_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_write() : phys_mem8[mem8_loc ^ tlb_lookup];
}
function __ld_16bits_mem8_write() {
var x;
x = ld_8bits_mem8_write();
mem8_loc++;
x |= ld_8bits_mem8_write() << 8;
mem8_loc--;
return x;
}
function ld_16bits_mem8_write() {
var tlb_lookup;
return ((tlb_lookup = _tlb_write_[mem8_loc >>> 12]) | mem8_loc) & 1 ? __ld_16bits_mem8_write() : phys_mem16[(mem8_loc ^ tlb_lookup) >> 1];
}
function __ld_32bits_mem8_write() {
var x;
x = ld_8bits_mem8_write();
mem8_loc++;
x |= ld_8bits_mem8_write() << 8;
mem8_loc++;
x |= ld_8bits_mem8_write() << 16;
mem8_loc++;
x |= ld_8bits_mem8_write() << 24;
mem8_loc -= 3;
return x;
}
function ld_32bits_mem8_write() {
var tlb_lookup;
return ((tlb_lookup = _tlb_write_[mem8_loc >>> 12]) | mem8_loc) & 3 ? __ld_32bits_mem8_write() : phys_mem32[(mem8_loc ^ tlb_lookup) >> 2];
}
function __st8_mem8_write(x) {
var tlb_lookup;
do_tlb_set_page(mem8_loc, 1, cpu.cpl == 3);
tlb_lookup = _tlb_write_[mem8_loc >>> 12] ^ mem8_loc;
phys_mem8[tlb_lookup] = x;
}
function st8_mem8_write(x) {
var last_tlb_val;
{
last_tlb_val = _tlb_write_[mem8_loc >>> 12];
if (last_tlb_val == -1) {
__st8_mem8_write(x);
} else {
phys_mem8[mem8_loc ^ last_tlb_val] = x;
}
}
}
function __st16_mem8_write(x) {
st8_mem8_write(x);
mem8_loc++;
st8_mem8_write(x >> 8);
mem8_loc--;
}
function st16_mem8_write(x) {
var last_tlb_val;
{
last_tlb_val = _tlb_write_[mem8_loc >>> 12];
if ((last_tlb_val | mem8_loc) & 1) {
__st16_mem8_write(x);
} else {
phys_mem16[(mem8_loc ^ last_tlb_val) >> 1] = x;
}
}
}
function __st32_mem8_write(x) {
st8_mem8_write(x);
mem8_loc++;
st8_mem8_write(x >> 8);
mem8_loc++;
st8_mem8_write(x >> 16);
mem8_loc++;
st8_mem8_write(x >> 24);
mem8_loc -= 3;
}
function st32_mem8_write(x) {
var last_tlb_val;
{
last_tlb_val = _tlb_write_[mem8_loc >>> 12];
if ((last_tlb_val | mem8_loc) & 3) {
__st32_mem8_write(x);
} else {
phys_mem32[(mem8_loc ^ last_tlb_val) >> 2] = x;
}
}
}
function __ld8_mem8_kernel_read() {
var tlb_lookup;
do_tlb_set_page(mem8_loc, 0, 0);
tlb_lookup = tlb_read_kernel[mem8_loc >>> 12] ^ mem8_loc;
return phys_mem8[tlb_lookup];
}
function ld8_mem8_kernel_read() {
var tlb_lookup;
return ((tlb_lookup = tlb_read_kernel[mem8_loc >>> 12]) == -1) ? __ld8_mem8_kernel_read() : phys_mem8[mem8_loc ^ tlb_lookup];
}
function __ld16_mem8_kernel_read() {
var x;
x = ld8_mem8_kernel_read();
mem8_loc++;
x |= ld8_mem8_kernel_read() << 8;
mem8_loc--;
return x;
}
function ld16_mem8_kernel_read() {
var tlb_lookup;
return ((tlb_lookup = tlb_read_kernel[mem8_loc >>> 12]) | mem8_loc) & 1 ? __ld16_mem8_kernel_read() : phys_mem16[(mem8_loc ^ tlb_lookup) >> 1];
}
function __ld32_mem8_kernel_read() {
var x;
x = ld8_mem8_kernel_read();
mem8_loc++;
x |= ld8_mem8_kernel_read() << 8;
mem8_loc++;
x |= ld8_mem8_kernel_read() << 16;
mem8_loc++;
x |= ld8_mem8_kernel_read() << 24;
mem8_loc -= 3;
return x;
}
function ld32_mem8_kernel_read() {
var tlb_lookup;
return ((tlb_lookup = tlb_read_kernel[mem8_loc >>> 12]) | mem8_loc) & 3 ? __ld32_mem8_kernel_read() : phys_mem32[(mem8_loc ^ tlb_lookup) >> 2];
}
function __st8_mem8_kernel_write(x) {
var tlb_lookup;
do_tlb_set_page(mem8_loc, 1, 0);
tlb_lookup = tlb_write_kernel[mem8_loc >>> 12] ^ mem8_loc;
phys_mem8[tlb_lookup] = x;
}
function st8_mem8_kernel_write(x) {
var tlb_lookup;
tlb_lookup = tlb_write_kernel[mem8_loc >>> 12];
if (tlb_lookup == -1) {
__st8_mem8_kernel_write(x);
} else {
phys_mem8[mem8_loc ^ tlb_lookup] = x;
}
}
function __st16_mem8_kernel_write(x) {
st8_mem8_kernel_write(x);
mem8_loc++;
st8_mem8_kernel_write(x >> 8);
mem8_loc--;
}
function st16_mem8_kernel_write(x) {
var tlb_lookup;
tlb_lookup = tlb_write_kernel[mem8_loc >>> 12];
if ((tlb_lookup | mem8_loc) & 1) {
__st16_mem8_kernel_write(x);
} else {
phys_mem16[(mem8_loc ^ tlb_lookup) >> 1] = x;
}
}
function __st32_mem8_kernel_write(x) {
st8_mem8_kernel_write(x);
mem8_loc++;
st8_mem8_kernel_write(x >> 8);
mem8_loc++;
st8_mem8_kernel_write(x >> 16);
mem8_loc++;
st8_mem8_kernel_write(x >> 24);
mem8_loc -= 3;
}
function st32_mem8_kernel_write(x) {
var tlb_lookup;
tlb_lookup = tlb_write_kernel[mem8_loc >>> 12];
if ((tlb_lookup | mem8_loc) & 3) {
__st32_mem8_kernel_write(x);
} else {
phys_mem32[(mem8_loc ^ tlb_lookup) >> 2] = x;
}
}
var eip, mem_ptr, Lb, initial_mem_ptr, Nb;
function Ob() {
var x, y;
x = phys_mem8[mem_ptr++];
y = phys_mem8[mem_ptr++];
return x | (y << 8);
}
function Pb(mem8) {
var base, mem8_loc, Qb, Rb, Sb, Tb;
if (FS_usage_flag && (CS_flags & (0x000f | 0x0080)) == 0) {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
Qb = phys_mem8[mem_ptr++];
base = Qb & 7;
if (base == 5) {
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
} else {
mem8_loc = regs[base];
}
Rb = (Qb >> 3) & 7;
if (Rb != 4) {
mem8_loc = (mem8_loc + (regs[Rb] << (Qb >> 6))) >> 0;
}
break;
case 0x0c:
Qb = phys_mem8[mem_ptr++];
mem8_loc = ((phys_mem8[mem_ptr++] << 24) >> 24);
base = Qb & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
Rb = (Qb >> 3) & 7;
if (Rb != 4) {
mem8_loc = (mem8_loc + (regs[Rb] << (Qb >> 6))) >> 0;
}
break;
case 0x14:
Qb = phys_mem8[mem_ptr++];
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
base = Qb & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
Rb = (Qb >> 3) & 7;
if (Rb != 4) {
mem8_loc = (mem8_loc + (regs[Rb] << (Qb >> 6))) >> 0;
}
break;
case 0x05:
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
base = mem8 & 7;
mem8_loc = regs[base];
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
mem8_loc = ((phys_mem8[mem_ptr++] << 24) >> 24);
base = mem8 & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
default:
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
base = mem8 & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
break;
}
return mem8_loc;
} else if (CS_flags & 0x0080) {
if ((mem8 & 0xc7) == 0x06) {
mem8_loc = Ob();
Tb = 3;
} else {
switch (mem8 >> 6) {
case 0:
mem8_loc = 0;
break;
case 1:
mem8_loc = ((phys_mem8[mem_ptr++] << 24) >> 24);
break;
default:
mem8_loc = Ob();
break;
}
switch (mem8 & 7) {
case 0:
mem8_loc = (mem8_loc + regs[3] + regs[6]) & 0xffff;
Tb = 3;
break;
case 1:
mem8_loc = (mem8_loc + regs[3] + regs[7]) & 0xffff;
Tb = 3;
break;
case 2:
mem8_loc = (mem8_loc + regs[5] + regs[6]) & 0xffff;
Tb = 2;
break;
case 3:
mem8_loc = (mem8_loc + regs[5] + regs[7]) & 0xffff;
Tb = 2;
break;
case 4:
mem8_loc = (mem8_loc + regs[6]) & 0xffff;
Tb = 3;
break;
case 5:
mem8_loc = (mem8_loc + regs[7]) & 0xffff;
Tb = 3;
break;
case 6:
mem8_loc = (mem8_loc + regs[5]) & 0xffff;
Tb = 2;
break;
case 7:
default:
mem8_loc = (mem8_loc + regs[3]) & 0xffff;
Tb = 3;
break;
}
}
Sb = CS_flags & 0x000f;
if (Sb == 0) {
Sb = Tb;
} else {
Sb--;
}
mem8_loc = (mem8_loc + cpu.segs[Sb].base) >> 0;
return mem8_loc;
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
Qb = phys_mem8[mem_ptr++];
base = Qb & 7;
if (base == 5) {
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
base = 0;
} else {
mem8_loc = regs[base];
}
Rb = (Qb >> 3) & 7;
if (Rb != 4) {
mem8_loc = (mem8_loc + (regs[Rb] << (Qb >> 6))) >> 0;
}
break;
case 0x0c:
Qb = phys_mem8[mem_ptr++];
mem8_loc = ((phys_mem8[mem_ptr++] << 24) >> 24);
base = Qb & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
Rb = (Qb >> 3) & 7;
if (Rb != 4) {
mem8_loc = (mem8_loc + (regs[Rb] << (Qb >> 6))) >> 0;
}
break;
case 0x14:
Qb = phys_mem8[mem_ptr++];
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
base = Qb & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
Rb = (Qb >> 3) & 7;
if (Rb != 4) {
mem8_loc = (mem8_loc + (regs[Rb] << (Qb >> 6))) >> 0;
}
break;
case 0x05:
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
base = 0;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
base = mem8 & 7;
mem8_loc = regs[base];
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
mem8_loc = ((phys_mem8[mem_ptr++] << 24) >> 24);
base = mem8 & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
default:
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
base = mem8 & 7;
mem8_loc = (mem8_loc + regs[base]) >> 0;
break;
}
Sb = CS_flags & 0x000f;
if (Sb == 0) {
if (base == 4 || base == 5)
Sb = 2;
else
Sb = 3;
} else {
Sb--;
}
mem8_loc = (mem8_loc + cpu.segs[Sb].base) >> 0;
return mem8_loc;
}
}
function Ub() {
var mem8_loc, Sb;
if (CS_flags & 0x0080) {
mem8_loc = Ob();
} else {
{
mem8_loc = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
}
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
mem8_loc = (mem8_loc + cpu.segs[Sb].base) >> 0;
return mem8_loc;
}
function set_either_two_bytes_of_reg_ABCD(register_1, x) {
/*
if arg[0] is = 1xx then set register xx's upper two bytes to two bytes in arg[1]
if arg[0] is = 0xx then set register xx's lower two bytes to two bytes in arg[1]
*/
if (register_1 & 4)
regs[register_1 & 3] = (regs[register_1 & 3] & -65281) | ((x & 0xff) << 8);
else
regs[register_1 & 3] = (regs[register_1 & 3] & -256) | (x & 0xff);
}
function set_lower_two_bytes_of_register(register_1, x) {
regs[register_1] = (regs[register_1] & -65536) | (x & 0xffff);
}
function do_32bit_math(conditional_var, Yb, Zb) {
var ac;
switch (conditional_var) {
case 0:
_src = Zb;
Yb = (Yb + Zb) >> 0;
_dst = Yb;
_op = 2;
break;
case 1:
Yb = Yb | Zb;
_dst = Yb;
_op = 14;
break;
case 2:
ac = check_carry();
_src = Zb;
Yb = (Yb + Zb + ac) >> 0;
_dst = Yb;
_op = ac ? 5 : 2;
break;
case 3:
ac = check_carry();
_src = Zb;
Yb = (Yb - Zb - ac) >> 0;
_dst = Yb;
_op = ac ? 11 : 8;
break;
case 4:
Yb = Yb & Zb;
_dst = Yb;
_op = 14;
break;
case 5:
_src = Zb;
Yb = (Yb - Zb) >> 0;
_dst = Yb;
_op = 8;
break;
case 6:
Yb = Yb ^ Zb;
_dst = Yb;
_op = 14;
break;
case 7:
_src = Zb;
_dst = (Yb - Zb) >> 0;
_op = 8;
break;
default:
throw "arith" + cc + ": invalid op";
}
return Yb;
}
function do_16bit_math(conditional_var, Yb, Zb) {
var ac;
switch (conditional_var) {
case 0:
_src = Zb;
Yb = (((Yb + Zb) << 16) >> 16);
_dst = Yb;
_op = 1;
break;
case 1:
Yb = (((Yb | Zb) << 16) >> 16);
_dst = Yb;
_op = 13;
break;
case 2:
ac = check_carry();
_src = Zb;
Yb = (((Yb + Zb + ac) << 16) >> 16);
_dst = Yb;
_op = ac ? 4 : 1;
break;
case 3:
ac = check_carry();
_src = Zb;
Yb = (((Yb - Zb - ac) << 16) >> 16);
_dst = Yb;
_op = ac ? 10 : 7;
break;
case 4:
Yb = (((Yb & Zb) << 16) >> 16);
_dst = Yb;
_op = 13;
break;
case 5:
_src = Zb;
Yb = (((Yb - Zb) << 16) >> 16);
_dst = Yb;
_op = 7;
break;
case 6:
Yb = (((Yb ^ Zb) << 16) >> 16);
_dst = Yb;
_op = 13;
break;
case 7:
_src = Zb;
_dst = (((Yb - Zb) << 16) >> 16);
_op = 7;
break;
default:
throw "arith" + cc + ": invalid op";
}
return Yb;
}
function ec(x) {
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
_dst = (((x + 1) << 16) >> 16);
_op = 26;
return _dst;
}
function fc(x) {
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
_dst = (((x - 1) << 16) >> 16);
_op = 29;
return _dst;
}
function do_8bit_math(conditional_var, Yb, Zb) {
var ac;
switch (conditional_var) {
case 0:
_src = Zb;
Yb = (((Yb + Zb) << 24) >> 24);
_dst = Yb;
_op = 0;
break;
case 1:
Yb = (((Yb | Zb) << 24) >> 24);
_dst = Yb;
_op = 12;
break;
case 2:
ac = check_carry();
_src = Zb;
Yb = (((Yb + Zb + ac) << 24) >> 24);
_dst = Yb;
_op = ac ? 3 : 0;
break;
case 3:
ac = check_carry();
_src = Zb;
Yb = (((Yb - Zb - ac) << 24) >> 24);
_dst = Yb;
_op = ac ? 9 : 6;
break;
case 4:
Yb = (((Yb & Zb) << 24) >> 24);
_dst = Yb;
_op = 12;
break;
case 5:
_src = Zb;
Yb = (((Yb - Zb) << 24) >> 24);
_dst = Yb;
_op = 6;
break;
case 6:
Yb = (((Yb ^ Zb) << 24) >> 24);
_dst = Yb;
_op = 12;
break;
case 7:
_src = Zb;
_dst = (((Yb - Zb) << 24) >> 24);
_op = 6;
break;
default:
throw "arith" + cc + ": invalid op";
}
return Yb;
}
function hc(x) {
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
_dst = (((x + 1) << 24) >> 24);
_op = 25;
return _dst;
}
function ic(x) {
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
_dst = (((x - 1) << 24) >> 24);
_op = 28;
return _dst;
}
function shift8(conditional_var, Yb, Zb) {
var kc, ac;
switch (conditional_var) {
case 0:
if (Zb & 0x1f) {
Zb &= 0x7;
Yb &= 0xff;
kc = Yb;
Yb = (Yb << Zb) | (Yb >>> (8 - Zb));
_src = lc();
_src |= (Yb & 0x0001) | (((kc ^ Yb) << 4) & 0x0800);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 1:
if (Zb & 0x1f) {
Zb &= 0x7;
Yb &= 0xff;
kc = Yb;
Yb = (Yb >>> Zb) | (Yb << (8 - Zb));
_src = lc();
_src |= ((Yb >> 7) & 0x0001) | (((kc ^ Yb) << 4) & 0x0800);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 2:
Zb = used_by_shift8[Zb & 0x1f];
if (Zb) {
Yb &= 0xff;
kc = Yb;
ac = check_carry();
Yb = (Yb << Zb) | (ac << (Zb - 1));
if (Zb > 1)
Yb |= kc >>> (9 - Zb);
_src = lc();
_src |= (((kc ^ Yb) << 4) & 0x0800) | ((kc >> (8 - Zb)) & 0x0001);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 3:
Zb = used_by_shift8[Zb & 0x1f];
if (Zb) {
Yb &= 0xff;
kc = Yb;
ac = check_carry();
Yb = (Yb >>> Zb) | (ac << (8 - Zb));
if (Zb > 1)
Yb |= kc << (9 - Zb);
_src = lc();
_src |= (((kc ^ Yb) << 4) & 0x0800) | ((kc >> (Zb - 1)) & 0x0001);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 4:
case 6:
Zb &= 0x1f;
if (Zb) {
_src = Yb << (Zb - 1);
_dst = Yb = (((Yb << Zb) << 24) >> 24);
_op = 15;
}
break;
case 5:
Zb &= 0x1f;
if (Zb) {
Yb &= 0xff;
_src = Yb >>> (Zb - 1);
_dst = Yb = (((Yb >>> Zb) << 24) >> 24);
_op = 18;
}
break;
case 7:
Zb &= 0x1f;
if (Zb) {
Yb = (Yb << 24) >> 24;
_src = Yb >> (Zb - 1);
_dst = Yb = (((Yb >> Zb) << 24) >> 24);
_op = 18;
}
break;
default:
throw "unsupported shift8=" + conditional_var;
}
return Yb;
}
function shift16(conditional_var, Yb, Zb) {
var kc, ac;
switch (conditional_var) {
case 0:
if (Zb & 0x1f) {
Zb &= 0xf;
Yb &= 0xffff;
kc = Yb;
Yb = (Yb << Zb) | (Yb >>> (16 - Zb));
_src = lc();
_src |= (Yb & 0x0001) | (((kc ^ Yb) >> 4) & 0x0800);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 1:
if (Zb & 0x1f) {
Zb &= 0xf;
Yb &= 0xffff;
kc = Yb;
Yb = (Yb >>> Zb) | (Yb << (16 - Zb));
_src = lc();
_src |= ((Yb >> 15) & 0x0001) | (((kc ^ Yb) >> 4) & 0x0800);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 2:
Zb = used_by_shift16[Zb & 0x1f];
if (Zb) {
Yb &= 0xffff;
kc = Yb;
ac = check_carry();
Yb = (Yb << Zb) | (ac << (Zb - 1));
if (Zb > 1)
Yb |= kc >>> (17 - Zb);
_src = lc();
_src |= (((kc ^ Yb) >> 4) & 0x0800) | ((kc >> (16 - Zb)) & 0x0001);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 3:
Zb = used_by_shift16[Zb & 0x1f];
if (Zb) {
Yb &= 0xffff;
kc = Yb;
ac = check_carry();
Yb = (Yb >>> Zb) | (ac << (16 - Zb));
if (Zb > 1)
Yb |= kc << (17 - Zb);
_src = lc();
_src |= (((kc ^ Yb) >> 4) & 0x0800) | ((kc >> (Zb - 1)) & 0x0001);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 4:
case 6:
Zb &= 0x1f;
if (Zb) {
_src = Yb << (Zb - 1);
_dst = Yb = (((Yb << Zb) << 16) >> 16);
_op = 16;
}
break;
case 5:
Zb &= 0x1f;
if (Zb) {
Yb &= 0xffff;
_src = Yb >>> (Zb - 1);
_dst = Yb = (((Yb >>> Zb) << 16) >> 16);
_op = 19;
}
break;
case 7:
Zb &= 0x1f;
if (Zb) {
Yb = (Yb << 16) >> 16;
_src = Yb >> (Zb - 1);
_dst = Yb = (((Yb >> Zb) << 16) >> 16);
_op = 19;
}
break;
default:
throw "unsupported shift16=" + conditional_var;
}
return Yb;
}
function nc(conditional_var, Yb, Zb) {
var kc, ac;
switch (conditional_var) {
case 0:
Zb &= 0x1f;
if (Zb) {
kc = Yb;
Yb = (Yb << Zb) | (Yb >>> (32 - Zb));
_src = lc();
_src |= (Yb & 0x0001) | (((kc ^ Yb) >> 20) & 0x0800);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 1:
Zb &= 0x1f;
if (Zb) {
kc = Yb;
Yb = (Yb >>> Zb) | (Yb << (32 - Zb));
_src = lc();
_src |= ((Yb >> 31) & 0x0001) | (((kc ^ Yb) >> 20) & 0x0800);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 2:
Zb &= 0x1f;
if (Zb) {
kc = Yb;
ac = check_carry();
Yb = (Yb << Zb) | (ac << (Zb - 1));
if (Zb > 1)
Yb |= kc >>> (33 - Zb);
_src = lc();
_src |= (((kc ^ Yb) >> 20) & 0x0800) | ((kc >> (32 - Zb)) & 0x0001);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 3:
Zb &= 0x1f;
if (Zb) {
kc = Yb;
ac = check_carry();
Yb = (Yb >>> Zb) | (ac << (32 - Zb));
if (Zb > 1)
Yb |= kc << (33 - Zb);
_src = lc();
_src |= (((kc ^ Yb) >> 20) & 0x0800) | ((kc >> (Zb - 1)) & 0x0001);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
break;
case 4:
case 6:
Zb &= 0x1f;
if (Zb) {
_src = Yb << (Zb - 1);
_dst = Yb = Yb << Zb;
_op = 17;
}
break;
case 5:
Zb &= 0x1f;
if (Zb) {
_src = Yb >>> (Zb - 1);
_dst = Yb = Yb >>> Zb;
_op = 20;
}
break;
case 7:
Zb &= 0x1f;
if (Zb) {
_src = Yb >> (Zb - 1);
_dst = Yb = Yb >> Zb;
_op = 20;
}
break;
default:
throw "unsupported shift32=" + conditional_var;
}
return Yb;
}
function oc(conditional_var, Yb, Zb, pc) {
var qc;
pc &= 0x1f;
if (pc) {
if (conditional_var == 0) {
Zb &= 0xffff;
qc = Zb | (Yb << 16);
_src = qc >> (32 - pc);
qc <<= pc;
if (pc > 16)
qc |= Zb << (pc - 16);
Yb = _dst = qc >> 16;
_op = 19;
} else {
qc = (Yb & 0xffff) | (Zb << 16);
_src = qc >> (pc - 1);
qc >>= pc;
if (pc > 16)
qc |= Zb << (32 - pc);
Yb = _dst = (((qc) << 16) >> 16);
_op = 19;
}
}
return Yb;
}
function rc(Yb, Zb, pc) {
pc &= 0x1f;
if (pc) {
_src = Yb << (pc - 1);
_dst = Yb = (Yb << pc) | (Zb >>> (32 - pc));
_op = 17;
}
return Yb;
}
function sc(Yb, Zb, pc) {
pc &= 0x1f;
if (pc) {
_src = Yb >> (pc - 1);
_dst = Yb = (Yb >>> pc) | (Zb << (32 - pc));
_op = 20;
}
return Yb;
}
function tc(Yb, Zb) {
Zb &= 0xf;
_src = Yb >> Zb;
_op = 19;
}
function uc(Yb, Zb) {
Zb &= 0x1f;
_src = Yb >> Zb;
_op = 20;
}
function vc(conditional_var, Yb, Zb) {
var wc;
Zb &= 0xf;
_src = Yb >> Zb;
wc = 1 << Zb;
switch (conditional_var) {
case 1:
Yb |= wc;
break;
case 2:
Yb &= ~wc;
break;
case 3:
default:
Yb ^= wc;
break;
}
_op = 19;
return Yb;
}
function xc(conditional_var, Yb, Zb) {
var wc;
Zb &= 0x1f;
_src = Yb >> Zb;
wc = 1 << Zb;
switch (conditional_var) {
case 1:
Yb |= wc;
break;
case 2:
Yb &= ~wc;
break;
case 3:
default:
Yb ^= wc;
break;
}
_op = 20;
return Yb;
}
function yc(Yb, Zb) {
Zb &= 0xffff;
if (Zb) {
Yb = 0;
while ((Zb & 1) == 0) {
Yb++;
Zb >>= 1;
}
_dst = 1;
} else {
_dst = 0;
}
_op = 14;
return Yb;
}
function zc(Yb, Zb) {
if (Zb) {
Yb = 0;
while ((Zb & 1) == 0) {
Yb++;
Zb >>= 1;
}
_dst = 1;
} else {
_dst = 0;
}
_op = 14;
return Yb;
}
function Ac(Yb, Zb) {
Zb &= 0xffff;
if (Zb) {
Yb = 15;
while ((Zb & 0x8000) == 0) {
Yb--;
Zb <<= 1;
}
_dst = 1;
} else {
_dst = 0;
}
_op = 14;
return Yb;
}
function Bc(Yb, Zb) {
if (Zb) {
Yb = 31;
while (Zb >= 0) {
Yb--;
Zb <<= 1;
}
_dst = 1;
} else {
_dst = 0;
}
_op = 14;
return Yb;
}
function Cc(OPbyte) {
var a, q, r;
a = regs[0] & 0xffff;
OPbyte &= 0xff;
if ((a >> 8) >= OPbyte)
blow_up_errcode0(0);
q = (a / OPbyte) >> 0;
r = (a % OPbyte);
set_lower_two_bytes_of_register(0, (q & 0xff) | (r << 8));
}
function Ec(OPbyte) {
var a, q, r;
a = (regs[0] << 16) >> 16;
OPbyte = (OPbyte << 24) >> 24;
if (OPbyte == 0)
blow_up_errcode0(0);
q = (a / OPbyte) >> 0;
if (((q << 24) >> 24) != q)
blow_up_errcode0(0);
r = (a % OPbyte);
set_lower_two_bytes_of_register(0, (q & 0xff) | (r << 8));
}
function Fc(OPbyte) {
var a, q, r;
a = (regs[2] << 16) | (regs[0] & 0xffff);
OPbyte &= 0xffff;
if ((a >>> 16) >= OPbyte)
blow_up_errcode0(0);
q = (a / OPbyte) >> 0;
r = (a % OPbyte);
set_lower_two_bytes_of_register(0, q);
set_lower_two_bytes_of_register(2, r);
}
function Gc(OPbyte) {
var a, q, r;
a = (regs[2] << 16) | (regs[0] & 0xffff);
OPbyte = (OPbyte << 16) >> 16;
if (OPbyte == 0)
blow_up_errcode0(0);
q = (a / OPbyte) >> 0;
if (((q << 16) >> 16) != q)
blow_up_errcode0(0);
r = (a % OPbyte);
set_lower_two_bytes_of_register(0, q);
set_lower_two_bytes_of_register(2, r);
}
function Hc(Ic, Jc, OPbyte) {
var a, i, Kc;
Ic = Ic >>> 0;
Jc = Jc >>> 0;
OPbyte = OPbyte >>> 0;
if (Ic >= OPbyte) {
blow_up_errcode0(0);
}
if (Ic >= 0 && Ic <= 0x200000) {
a = Ic * 4294967296 + Jc;
v = (a % OPbyte) >> 0;
return (a / OPbyte) >> 0;
} else {
for (i = 0; i < 32; i++) {
Kc = Ic >> 31;
Ic = ((Ic << 1) | (Jc >>> 31)) >>> 0;
if (Kc || Ic >= OPbyte) {
Ic = Ic - OPbyte;
Jc = (Jc << 1) | 1;
} else {
Jc = Jc << 1;
}
}
v = Ic >> 0;
return Jc;
}
}
function Lc(Ic, Jc, OPbyte) {
var Mc, Nc, q;
if (Ic < 0) {
Mc = 1;
Ic = ~Ic;
Jc = (-Jc) >> 0;
if (Jc == 0)
Ic = (Ic + 1) >> 0;
} else {
Mc = 0;
}
if (OPbyte < 0) {
OPbyte = (-OPbyte) >> 0;
Nc = 1;
} else {
Nc = 0;
}
q = Hc(Ic, Jc, OPbyte);
Nc ^= Mc;
if (Nc) {
if ((q >>> 0) > 0x80000000)
blow_up_errcode0(0);
q = (-q) >> 0;
} else {
if ((q >>> 0) >= 0x80000000)
blow_up_errcode0(0);
}
if (Mc) {
v = (-v) >> 0;
}
return q;
}
function Oc(a, OPbyte) {
var qc;
a &= 0xff;
OPbyte &= 0xff;
qc = (regs[0] & 0xff) * (OPbyte & 0xff);
_src = qc >> 8;
_dst = (((qc) << 24) >> 24);
_op = 21;
return qc;
}
function Pc(a, OPbyte) {
var qc;
a = (((a) << 24) >> 24);
OPbyte = (((OPbyte) << 24) >> 24);
qc = (a * OPbyte) >> 0;
_dst = (((qc) << 24) >> 24);
_src = (qc != _dst) >> 0;
_op = 21;
return qc;
}
function Qc(a, OPbyte) {
var qc;
qc = ((a & 0xffff) * (OPbyte & 0xffff)) >> 0;
_src = qc >>> 16;
_dst = (((qc) << 16) >> 16);
_op = 22;
return qc;
}
function Rc(a, OPbyte) {
var qc;
a = (a << 16) >> 16;
OPbyte = (OPbyte << 16) >> 16;
qc = (a * OPbyte) >> 0;
_dst = (((qc) << 16) >> 16);
_src = (qc != _dst) >> 0;
_op = 22;
return qc;
}
function Sc(a, OPbyte) {
var r, Jc, Ic, Tc, Uc, m;
a = a >>> 0;
OPbyte = OPbyte >>> 0;
r = a * OPbyte;
if (r <= 0xffffffff) {
v = 0;
r &= -1;
} else {
Jc = a & 0xffff;
Ic = a >>> 16;
Tc = OPbyte & 0xffff;
Uc = OPbyte >>> 16;
r = Jc * Tc;
v = Ic * Uc;
m = Jc * Uc;
r += (((m & 0xffff) << 16) >>> 0);
v += (m >>> 16);
if (r >= 4294967296) {
r -= 4294967296;
v++;
}
m = Ic * Tc;
r += (((m & 0xffff) << 16) >>> 0);
v += (m >>> 16);
if (r >= 4294967296) {
r -= 4294967296;
v++;
}
r &= -1;
v &= -1;
}
return r;
}
function Vc(a, OPbyte) {
_dst = Sc(a, OPbyte);
_src = v;
_op = 23;
return _dst;
}
function Wc(a, OPbyte) {
var s, r;
s = 0;
if (a < 0) {
a = -a;
s = 1;
}
if (OPbyte < 0) {
OPbyte = -OPbyte;
s ^= 1;
}
r = Sc(a, OPbyte);
if (s) {
v = ~v;
r = (-r) >> 0;
if (r == 0) {
v = (v + 1) >> 0;
}
}
_dst = r;
_src = (v - (r >> 31)) >> 0;
_op = 23;
return r;
}
function check_carry() {
var Yb, qc, Xc, Yc;
if (_op >= 25) {
Xc = _op2;
Yc = _dst2;
} else {
Xc = _op;
Yc = _dst;
}
switch (Xc) {
case 0:
qc = (Yc & 0xff) < (_src & 0xff);
break;
case 1:
qc = (Yc & 0xffff) < (_src & 0xffff);
break;
case 2:
qc = (Yc >>> 0) < (_src >>> 0);
break;
case 3:
qc = (Yc & 0xff) <= (_src & 0xff);
break;
case 4:
qc = (Yc & 0xffff) <= (_src & 0xffff);
break;
case 5:
qc = (Yc >>> 0) <= (_src >>> 0);
break;
case 6:
qc = ((Yc + _src) & 0xff) < (_src & 0xff);
break;
case 7:
qc = ((Yc + _src) & 0xffff) < (_src & 0xffff);
break;
case 8:
qc = ((Yc + _src) >>> 0) < (_src >>> 0);
break;
case 9:
Yb = (Yc + _src + 1) & 0xff;
qc = Yb <= (_src & 0xff);
break;
case 10:
Yb = (Yc + _src + 1) & 0xffff;
qc = Yb <= (_src & 0xffff);
break;
case 11:
Yb = (Yc + _src + 1) >>> 0;
qc = Yb <= (_src >>> 0);
break;
case 12:
case 13:
case 14:
qc = 0;
break;
case 15:
qc = (_src >> 7) & 1;
break;
case 16:
qc = (_src >> 15) & 1;
break;
case 17:
qc = (_src >> 31) & 1;
break;
case 18:
case 19:
case 20:
qc = _src & 1;
break;
case 21:
case 22:
case 23:
qc = _src != 0;
break;
case 24:
qc = _src & 1;
break;
default:
throw "GET_CARRY: unsupported cc_op=" + _op;
}
return qc;
}
function check_overflow() {
var qc, Yb;
switch (_op) {
case 0:
Yb = (_dst - _src) >> 0;
qc = (((Yb ^ _src ^ -1) & (Yb ^ _dst)) >> 7) & 1;
break;
case 1:
Yb = (_dst - _src) >> 0;
qc = (((Yb ^ _src ^ -1) & (Yb ^ _dst)) >> 15) & 1;
break;
case 2:
Yb = (_dst - _src) >> 0;
qc = (((Yb ^ _src ^ -1) & (Yb ^ _dst)) >> 31) & 1;
break;
case 3:
Yb = (_dst - _src - 1) >> 0;
qc = (((Yb ^ _src ^ -1) & (Yb ^ _dst)) >> 7) & 1;
break;
case 4:
Yb = (_dst - _src - 1) >> 0;
qc = (((Yb ^ _src ^ -1) & (Yb ^ _dst)) >> 15) & 1;
break;
case 5:
Yb = (_dst - _src - 1) >> 0;
qc = (((Yb ^ _src ^ -1) & (Yb ^ _dst)) >> 31) & 1;
break;
case 6:
Yb = (_dst + _src) >> 0;
qc = (((Yb ^ _src) & (Yb ^ _dst)) >> 7) & 1;
break;
case 7:
Yb = (_dst + _src) >> 0;
qc = (((Yb ^ _src) & (Yb ^ _dst)) >> 15) & 1;
break;
case 8:
Yb = (_dst + _src) >> 0;
qc = (((Yb ^ _src) & (Yb ^ _dst)) >> 31) & 1;
break;
case 9:
Yb = (_dst + _src + 1) >> 0;
qc = (((Yb ^ _src) & (Yb ^ _dst)) >> 7) & 1;
break;
case 10:
Yb = (_dst + _src + 1) >> 0;
qc = (((Yb ^ _src) & (Yb ^ _dst)) >> 15) & 1;
break;
case 11:
Yb = (_dst + _src + 1) >> 0;
qc = (((Yb ^ _src) & (Yb ^ _dst)) >> 31) & 1;
break;
case 12:
case 13:
case 14:
qc = 0;
break;
case 15:
case 18:
qc = ((_src ^ _dst) >> 7) & 1;
break;
case 16:
case 19:
qc = ((_src ^ _dst) >> 15) & 1;
break;
case 17:
case 20:
qc = ((_src ^ _dst) >> 31) & 1;
break;
case 21:
case 22:
case 23:
qc = _src != 0;
break;
case 24:
qc = (_src >> 11) & 1;
break;
case 25:
qc = (_dst & 0xff) == 0x80;
break;
case 26:
qc = (_dst & 0xffff) == 0x8000;
break;
case 27:
qc = (_dst == -2147483648);
break;
case 28:
qc = (_dst & 0xff) == 0x7f;
break;
case 29:
qc = (_dst & 0xffff) == 0x7fff;
break;
case 30:
qc = _dst == 0x7fffffff;
break;
default:
throw "JO: unsupported cc_op=" + _op;
}
return qc;
}
function ad() {
var qc;
switch (_op) {
case 6:
qc = ((_dst + _src) & 0xff) <= (_src & 0xff);
break;
case 7:
qc = ((_dst + _src) & 0xffff) <= (_src & 0xffff);
break;
case 8:
qc = ((_dst + _src) >>> 0) <= (_src >>> 0);
break;
case 24:
qc = (_src & (0x0040 | 0x0001)) != 0;
break;
default:
qc = check_carry() | (_dst == 0);
break;
}
return qc;
}
function check_parity() {
if (_op == 24) {
return (_src >> 2) & 1;
} else {
return parity_bit_check_array[_dst & 0xff];
}
}
function cd() {
var qc;
switch (_op) {
case 6:
qc = ((_dst + _src) << 24) < (_src << 24);
break;
case 7:
qc = ((_dst + _src) << 16) < (_src << 16);
break;
case 8:
qc = ((_dst + _src) >> 0) < _src;
break;
case 12:
case 25:
case 28:
case 13:
case 26:
case 29:
case 14:
case 27:
case 30:
qc = _dst < 0;
break;
case 24:
qc = ((_src >> 7) ^ (_src >> 11)) & 1;
break;
default:
qc = (_op == 24 ? ((_src >> 7) & 1) : (_dst < 0)) ^ check_overflow();
break;
}
return qc;
}
function dd() {
var qc;
switch (_op) {
case 6:
qc = ((_dst + _src) << 24) <= (_src << 24);
break;
case 7:
qc = ((_dst + _src) << 16) <= (_src << 16);
break;
case 8:
qc = ((_dst + _src) >> 0) <= _src;
break;
case 12:
case 25:
case 28:
case 13:
case 26:
case 29:
case 14:
case 27:
case 30:
qc = _dst <= 0;
break;
case 24:
qc = (((_src >> 7) ^ (_src >> 11)) | (_src >> 6)) & 1;
break;
default:
qc = ((_op == 24 ? ((_src >> 7) & 1) : (_dst < 0)) ^ check_overflow()) | (_dst == 0);
break;
}
return qc;
}
function ed() {
var Yb, qc;
switch (_op) {
case 0:
case 1:
case 2:
Yb = (_dst - _src) >> 0;
qc = (_dst ^ Yb ^ _src) & 0x10;
break;
case 3:
case 4:
case 5:
Yb = (_dst - _src - 1) >> 0;
qc = (_dst ^ Yb ^ _src) & 0x10;
break;
case 6:
case 7:
case 8:
Yb = (_dst + _src) >> 0;
qc = (_dst ^ Yb ^ _src) & 0x10;
break;
case 9:
case 10:
case 11:
Yb = (_dst + _src + 1) >> 0;
qc = (_dst ^ Yb ^ _src) & 0x10;
break;
case 12:
case 13:
case 14:
qc = 0;
break;
case 15:
case 18:
case 16:
case 19:
case 17:
case 20:
case 21:
case 22:
case 23:
qc = 0;
break;
case 24:
qc = _src & 0x10;
break;
case 25:
case 26:
case 27:
qc = (_dst ^ (_dst - 1)) & 0x10;
break;
case 28:
case 29:
case 30:
qc = (_dst ^ (_dst + 1)) & 0x10;
break;
default:
throw "AF: unsupported cc_op=" + _op;
}
return qc;
}
function check_status_bits_for_jump(gd) {
var qc;
switch (gd >> 1) {
case 0:
qc = check_overflow();
break;
case 1:
qc = check_carry();
break;
case 2:
qc = (_dst == 0);
break;
case 3:
qc = ad();
break;
case 4:
qc = (_op == 24 ? ((_src >> 7) & 1) : (_dst < 0));
break;
case 5:
qc = check_parity();
break;
case 6:
qc = cd();
break;
case 7:
qc = dd();
break;
default:
throw "unsupported cond: " + gd;
}
return qc ^ (gd & 1);
}
function lc() {
return (check_parity() << 2) | ((_dst == 0) << 6) | ((_op == 24 ? ((_src >> 7) & 1) : (_dst < 0)) << 7) | ed();
}
function hd() {
return (check_carry() << 0) | (check_parity() << 2) | ((_dst == 0) << 6) | ((_op == 24 ? ((_src >> 7) & 1) : (_dst < 0)) << 7) | (check_overflow() << 11) | ed();
}
function id() {
var jd;
jd = hd();
jd |= cpu.df & 0x00000400;
jd |= cpu.eflags;
return jd;
}
function kd(jd, ld) {
_src = jd & (0x0800 | 0x0080 | 0x0040 | 0x0010 | 0x0004 | 0x0001);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
cpu.df = 1 - (2 * ((jd >> 10) & 1));
cpu.eflags = (cpu.eflags & ~ld) | (jd & ld);
}
function current_cycle_count() {
return cpu.cycle_count + (N_cycles - cycles_left);
}
function cpu_abort(na) {
throw "CPU abort: " + na;
}
function cpu_dump() {
cpu.eip = eip;
cpu.cc_src = _src;
cpu.cc_dst = _dst;
cpu.cc_op = _op;
cpu.cc_op2 = _op2;
cpu.cc_dst2 = _dst2;
cpu.dump();
}
function cpu_dump_short() {
cpu.eip = eip;
cpu.cc_src = _src;
cpu.cc_dst = _dst;
cpu.cc_op = _op;
cpu.cc_op2 = _op2;
cpu.cc_dst2 = _dst2;
cpu.dump_short();
}
/* Oh Noes! */
function blow_up(intno, error_code) {
cpu.cycle_count += (N_cycles - cycles_left);
cpu.eip = eip;
cpu.cc_src = _src;
cpu.cc_dst = _dst;
cpu.cc_op = _op;
cpu.cc_op2 = _op2;
cpu.cc_dst2 = _dst2;
throw {intno: intno, error_code: error_code};
}
function blow_up_errcode0(intno) {
blow_up(intno, 0);
}
function change_permission_level(sd) {
cpu.cpl = sd;
if (cpu.cpl == 3) {
_tlb_read_ = tlb_read_user;
_tlb_write_ = tlb_write_user;
} else {
_tlb_read_ = tlb_read_kernel;
_tlb_write_ = tlb_write_kernel;
}
}
function td(mem8_loc, ud) {
var tlb_lookup;
if (ud) {
tlb_lookup = _tlb_write_[mem8_loc >>> 12];
} else {
tlb_lookup = _tlb_read_[mem8_loc >>> 12];
}
if (tlb_lookup == -1) {
do_tlb_set_page(mem8_loc, ud, cpu.cpl == 3);
if (ud) {
tlb_lookup = _tlb_write_[mem8_loc >>> 12];
} else {
tlb_lookup = _tlb_read_[mem8_loc >>> 12];
}
}
return tlb_lookup ^ mem8_loc;
}
function vd(x) {
var wd;
wd = regs[4] - 2;
mem8_loc = ((wd & SS_mask) + SS_base) >> 0;
st16_mem8_write(x);
regs[4] = (regs[4] & ~SS_mask) | ((wd) & SS_mask);
}
function xd(x) {
var wd;
wd = regs[4] - 4;
mem8_loc = ((wd & SS_mask) + SS_base) >> 0;
st32_mem8_write(x);
regs[4] = (regs[4] & ~SS_mask) | ((wd) & SS_mask);
}
function yd() {
mem8_loc = ((regs[4] & SS_mask) + SS_base) >> 0;
return ld_16bits_mem8_read();
}
function zd() {
regs[4] = (regs[4] & ~SS_mask) | ((regs[4] + 2) & SS_mask);
}
function Ad() {
mem8_loc = ((regs[4] & SS_mask) + SS_base) >> 0;
return ld_32bits_mem8_read();
}
function Bd() {
regs[4] = (regs[4] & ~SS_mask) | ((regs[4] + 4) & SS_mask);
}
function Cd(Nb, OPbyte) {
var n, CS_flags, l, mem8, Dd, base, conditional_var, Ed;
n = 1;
CS_flags = init_CS_flags;
if (CS_flags & 0x0100)
Ed = 2;
else
Ed = 4;
Fd: for (; ; ) {
switch (OPbyte) {
case 0x66:
if (init_CS_flags & 0x0100) {
Ed = 4;
CS_flags &= ~0x0100;
} else {
Ed = 2;
CS_flags |= 0x0100;
}
case 0xf0:
case 0xf2:
case 0xf3:
case 0x26:
case 0x2e:
case 0x36:
case 0x3e:
case 0x64:
case 0x65:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
OPbyte = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
break;
case 0x67:
if (init_CS_flags & 0x0080) {
CS_flags &= ~0x0080;
} else {
CS_flags |= 0x0080;
}
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
OPbyte = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
break;
case 0x91:
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0x96:
case 0x97:
case 0x40:
case 0x41:
case 0x42:
case 0x43:
case 0x44:
case 0x45:
case 0x46:
case 0x47:
case 0x48:
case 0x49:
case 0x4a:
case 0x4b:
case 0x4c:
case 0x4d:
case 0x4e:
case 0x4f:
case 0x50:
case 0x51:
case 0x52:
case 0x53:
case 0x54:
case 0x55:
case 0x56:
case 0x57:
case 0x58:
case 0x59:
case 0x5a:
case 0x5b:
case 0x5c:
case 0x5d:
case 0x5e:
case 0x5f:
case 0x98:
case 0x99:
case 0xc9:
case 0x9c:
case 0x9d:
case 0x06:
case 0x0e:
case 0x16:
case 0x1e:
case 0x07:
case 0x17:
case 0x1f:
case 0xc3:
case 0xcb:
case 0x90:
case 0xcc:
case 0xce:
case 0xcf:
case 0xf5:
case 0xf8:
case 0xf9:
case 0xfc:
case 0xfd:
case 0xfa:
case 0xfb:
case 0x9e:
case 0x9f:
case 0xf4:
case 0xa4:
case 0xa5:
case 0xaa:
case 0xab:
case 0xa6:
case 0xa7:
case 0xac:
case 0xad:
case 0xae:
case 0xaf:
case 0x9b:
case 0xec:
case 0xed:
case 0xee:
case 0xef:
case 0xd7:
case 0x27:
case 0x2f:
case 0x37:
case 0x3f:
case 0x60:
case 0x61:
case 0x6c:
case 0x6d:
case 0x6e:
case 0x6f:
break Fd;
case 0xb0:
case 0xb1:
case 0xb2:
case 0xb3:
case 0xb4:
case 0xb5:
case 0xb6:
case 0xb7:
case 0x04:
case 0x0c:
case 0x14:
case 0x1c:
case 0x24:
case 0x2c:
case 0x34:
case 0x3c:
case 0xa8:
case 0x6a:
case 0xeb:
case 0x70:
case 0x71:
case 0x72:
case 0x73:
case 0x76:
case 0x77:
case 0x78:
case 0x79:
case 0x7a:
case 0x7b:
case 0x7c:
case 0x7d:
case 0x7e:
case 0x7f:
case 0x74:
case 0x75:
case 0xe0:
case 0xe1:
case 0xe2:
case 0xe3:
case 0xcd:
case 0xe4:
case 0xe5:
case 0xe6:
case 0xe7:
case 0xd4:
case 0xd5:
n++;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0xb8:
case 0xb9:
case 0xba:
case 0xbb:
case 0xbc:
case 0xbd:
case 0xbe:
case 0xbf:
case 0x05:
case 0x0d:
case 0x15:
case 0x1d:
case 0x25:
case 0x2d:
case 0x35:
case 0x3d:
case 0xa9:
case 0x68:
case 0xe9:
case 0xe8:
n += Ed;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0x88:
case 0x89:
case 0x8a:
case 0x8b:
case 0x86:
case 0x87:
case 0x8e:
case 0x8c:
case 0xc4:
case 0xc5:
case 0x00:
case 0x08:
case 0x10:
case 0x18:
case 0x20:
case 0x28:
case 0x30:
case 0x38:
case 0x01:
case 0x09:
case 0x11:
case 0x19:
case 0x21:
case 0x29:
case 0x31:
case 0x39:
case 0x02:
case 0x0a:
case 0x12:
case 0x1a:
case 0x22:
case 0x2a:
case 0x32:
case 0x3a:
case 0x03:
case 0x0b:
case 0x13:
case 0x1b:
case 0x23:
case 0x2b:
case 0x33:
case 0x3b:
case 0x84:
case 0x85:
case 0xd0:
case 0xd1:
case 0xd2:
case 0xd3:
case 0x8f:
case 0x8d:
case 0xfe:
case 0xff:
case 0xd8:
case 0xd9:
case 0xda:
case 0xdb:
case 0xdc:
case 0xdd:
case 0xde:
case 0xdf:
case 0x62:
case 0x63:
{
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
mem8 = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if (CS_flags & 0x0080) {
switch (mem8 >> 6) {
case 0:
if ((mem8 & 7) == 6)
n += 2;
break;
case 1:
n++;
break;
default:
n += 2;
break;
}
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
Dd = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if ((Dd & 7) == 5) {
n += 4;
}
break;
case 0x0c:
n += 2;
break;
case 0x14:
n += 5;
break;
case 0x05:
n += 4;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
n++;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
n += 4;
break;
}
}
if (n > 15)
blow_up_errcode0(6);
}
break Fd;
case 0xa0:
case 0xa1:
case 0xa2:
case 0xa3:
if (CS_flags & 0x0100)
n += 2;
else
n += 4;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0xc6:
case 0x80:
case 0x82:
case 0x83:
case 0x6b:
case 0xc0:
case 0xc1:
{
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
mem8 = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if (CS_flags & 0x0080) {
switch (mem8 >> 6) {
case 0:
if ((mem8 & 7) == 6)
n += 2;
break;
case 1:
n++;
break;
default:
n += 2;
break;
}
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
Dd = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if ((Dd & 7) == 5) {
n += 4;
}
break;
case 0x0c:
n += 2;
break;
case 0x14:
n += 5;
break;
case 0x05:
n += 4;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
n++;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
n += 4;
break;
}
}
if (n > 15)
blow_up_errcode0(6);
}
n++;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0xc7:
case 0x81:
case 0x69:
{
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
mem8 = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if (CS_flags & 0x0080) {
switch (mem8 >> 6) {
case 0:
if ((mem8 & 7) == 6)
n += 2;
break;
case 1:
n++;
break;
default:
n += 2;
break;
}
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
Dd = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if ((Dd & 7) == 5) {
n += 4;
}
break;
case 0x0c:
n += 2;
break;
case 0x14:
n += 5;
break;
case 0x05:
n += 4;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
n++;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
n += 4;
break;
}
}
if (n > 15)
blow_up_errcode0(6);
}
n += Ed;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0xf6:
{
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
mem8 = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if (CS_flags & 0x0080) {
switch (mem8 >> 6) {
case 0:
if ((mem8 & 7) == 6)
n += 2;
break;
case 1:
n++;
break;
default:
n += 2;
break;
}
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
Dd = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if ((Dd & 7) == 5) {
n += 4;
}
break;
case 0x0c:
n += 2;
break;
case 0x14:
n += 5;
break;
case 0x05:
n += 4;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
n++;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
n += 4;
break;
}
}
if (n > 15)
blow_up_errcode0(6);
}
conditional_var = (mem8 >> 3) & 7;
if (conditional_var == 0) {
n++;
if (n > 15)
blow_up_errcode0(6);
}
break Fd;
case 0xf7:
{
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
mem8 = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if (CS_flags & 0x0080) {
switch (mem8 >> 6) {
case 0:
if ((mem8 & 7) == 6)
n += 2;
break;
case 1:
n++;
break;
default:
n += 2;
break;
}
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
Dd = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if ((Dd & 7) == 5) {
n += 4;
}
break;
case 0x0c:
n += 2;
break;
case 0x14:
n += 5;
break;
case 0x05:
n += 4;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
n++;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
n += 4;
break;
}
}
if (n > 15)
blow_up_errcode0(6);
}
conditional_var = (mem8 >> 3) & 7;
if (conditional_var == 0) {
n += Ed;
if (n > 15)
blow_up_errcode0(6);
}
break Fd;
case 0xea:
case 0x9a:
n += 2 + Ed;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0xc2:
case 0xca:
n += 2;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0xc8:
n += 3;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0xd6:
case 0xf1:
default:
blow_up_errcode0(6);
case 0x0f:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
OPbyte = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
switch (OPbyte) {
case 0x06:
case 0xa2:
case 0x31:
case 0xa0:
case 0xa8:
case 0xa1:
case 0xa9:
case 0xc8:
case 0xc9:
case 0xca:
case 0xcb:
case 0xcc:
case 0xcd:
case 0xce:
case 0xcf:
break Fd;
case 0x80:
case 0x81:
case 0x82:
case 0x83:
case 0x84:
case 0x85:
case 0x86:
case 0x87:
case 0x88:
case 0x89:
case 0x8a:
case 0x8b:
case 0x8c:
case 0x8d:
case 0x8e:
case 0x8f:
n += Ed;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0x90:
case 0x91:
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0x96:
case 0x97:
case 0x98:
case 0x99:
case 0x9a:
case 0x9b:
case 0x9c:
case 0x9d:
case 0x9e:
case 0x9f:
case 0x40:
case 0x41:
case 0x42:
case 0x43:
case 0x44:
case 0x45:
case 0x46:
case 0x47:
case 0x48:
case 0x49:
case 0x4a:
case 0x4b:
case 0x4c:
case 0x4d:
case 0x4e:
case 0x4f:
case 0xb6:
case 0xb7:
case 0xbe:
case 0xbf:
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x20:
case 0x22:
case 0x23:
case 0xb2:
case 0xb4:
case 0xb5:
case 0xa5:
case 0xad:
case 0xa3:
case 0xab:
case 0xb3:
case 0xbb:
case 0xbc:
case 0xbd:
case 0xaf:
case 0xc0:
case 0xc1:
case 0xb0:
case 0xb1:
{
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
mem8 = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if (CS_flags & 0x0080) {
switch (mem8 >> 6) {
case 0:
if ((mem8 & 7) == 6)
n += 2;
break;
case 1:
n++;
break;
default:
n += 2;
break;
}
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
Dd = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if ((Dd & 7) == 5) {
n += 4;
}
break;
case 0x0c:
n += 2;
break;
case 0x14:
n += 5;
break;
case 0x05:
n += 4;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
n++;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
n += 4;
break;
}
}
if (n > 15)
blow_up_errcode0(6);
}
break Fd;
case 0xa4:
case 0xac:
case 0xba:
{
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
mem8 = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if (CS_flags & 0x0080) {
switch (mem8 >> 6) {
case 0:
if ((mem8 & 7) == 6)
n += 2;
break;
case 1:
n++;
break;
default:
n += 2;
break;
}
} else {
switch ((mem8 & 7) | ((mem8 >> 3) & 0x18)) {
case 0x04:
{
if ((n + 1) > 15)
blow_up_errcode0(6);
mem8_loc = (Nb + (n++)) >> 0;
Dd = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
if ((Dd & 7) == 5) {
n += 4;
}
break;
case 0x0c:
n += 2;
break;
case 0x14:
n += 5;
break;
case 0x05:
n += 4;
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x06:
case 0x07:
break;
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0d:
case 0x0e:
case 0x0f:
n++;
break;
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x15:
case 0x16:
case 0x17:
n += 4;
break;
}
}
if (n > 15)
blow_up_errcode0(6);
}
n++;
if (n > 15)
blow_up_errcode0(6);
break Fd;
case 0x04:
case 0x05:
case 0x07:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0c:
case 0x0d:
case 0x0e:
case 0x0f:
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x14:
case 0x15:
case 0x16:
case 0x17:
case 0x18:
case 0x19:
case 0x1a:
case 0x1b:
case 0x1c:
case 0x1d:
case 0x1e:
case 0x1f:
case 0x21:
case 0x24:
case 0x25:
case 0x26:
case 0x27:
case 0x28:
case 0x29:
case 0x2a:
case 0x2b:
case 0x2c:
case 0x2d:
case 0x2e:
case 0x2f:
case 0x30:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
case 0x3a:
case 0x3b:
case 0x3c:
case 0x3d:
case 0x3e:
case 0x3f:
case 0x50:
case 0x51:
case 0x52:
case 0x53:
case 0x54:
case 0x55:
case 0x56:
case 0x57:
case 0x58:
case 0x59:
case 0x5a:
case 0x5b:
case 0x5c:
case 0x5d:
case 0x5e:
case 0x5f:
case 0x60:
case 0x61:
case 0x62:
case 0x63:
case 0x64:
case 0x65:
case 0x66:
case 0x67:
case 0x68:
case 0x69:
case 0x6a:
case 0x6b:
case 0x6c:
case 0x6d:
case 0x6e:
case 0x6f:
case 0x70:
case 0x71:
case 0x72:
case 0x73:
case 0x74:
case 0x75:
case 0x76:
case 0x77:
case 0x78:
case 0x79:
case 0x7a:
case 0x7b:
case 0x7c:
case 0x7d:
case 0x7e:
case 0x7f:
case 0xa6:
case 0xa7:
case 0xaa:
case 0xae:
case 0xb8:
case 0xb9:
case 0xc2:
case 0xc3:
case 0xc4:
case 0xc5:
case 0xc6:
case 0xc7:
default:
blow_up_errcode0(6);
}
break;
}
}
return n;
}
/* Typically, the upper 20 bits of CR3 become the page directory base register (PDBR),
which stores the physical address of the first page directory entry. */
function do_tlb_set_page(Gd, Hd, ja) {
var Id, Jd, error_code, Kd, Ld, Md, Nd, ud, Od;
if (!(cpu.cr0 & (1 << 31))) { //CR0: bit31 PG Paging If 1, enable paging and use the CR3 register, else disable paging
cpu.tlb_set_page(Gd & -4096, Gd & -4096, 1);
} else {
Id = (cpu.cr3 & -4096) + ((Gd >> 20) & 0xffc);
Jd = cpu.ld32_phys(Id);
if (!(Jd & 0x00000001)) {
error_code = 0;
} else {
if (!(Jd & 0x00000020)) {
Jd |= 0x00000020;
cpu.st32_phys(Id, Jd);
}
Kd = (Jd & -4096) + ((Gd >> 10) & 0xffc);
Ld = cpu.ld32_phys(Kd);
if (!(Ld & 0x00000001)) {
error_code = 0;
} else {
Md = Ld & Jd;
if (ja && !(Md & 0x00000004)) {
error_code = 0x01;
} else if (Hd && !(Md & 0x00000002)) {
error_code = 0x01;
} else {
Nd = (Hd && !(Ld & 0x00000040));
if (!(Ld & 0x00000020) || Nd) {
Ld |= 0x00000020;
if (Nd)
Ld |= 0x00000040;
cpu.st32_phys(Kd, Ld);
}
ud = 0;
if ((Ld & 0x00000040) && (Md & 0x00000002))
ud = 1;
Od = 0;
if (Md & 0x00000004)
Od = 1;
cpu.tlb_set_page(Gd & -4096, Ld & -4096, ud, Od);
return;
}
}
}
error_code |= Hd << 1;
if (ja)
error_code |= 0x04;
cpu.cr2 = Gd;
blow_up(14, error_code);
}
}
function set_CR0(Qd) {
if (!(Qd & (1 << 0))) //0th bit protected or real, only real supported!
cpu_abort("real mode not supported");
//if changing flags 31, 16, or 0 must flush tlb
if ((Qd & ((1 << 31) | (1 << 16) | (1 << 0))) != (cpu.cr0 & ((1 << 31) | (1 << 16) | (1 << 0)))) {
cpu.tlb_flush_all();
}
cpu.cr0 = Qd | (1 << 4); //keep bit 4 set to 1
}
function set_CR3(Sd) {
cpu.cr3 = Sd;
if (cpu.cr0 & (1 << 31)) {
cpu.tlb_flush_all();
}
}
function set_CR4(Ud) {
cpu.cr4 = Ud;
}
function SS_mask_from_flags(Wd) {
if (Wd & (1 << 22))
return -1;
else
return 0xffff;
}
function Xd(selector) {
var sa, Rb, Yd, Wd;
if (selector & 0x4)
sa = cpu.ldt;
else
sa = cpu.gdt;
Rb = selector & ~7;
if ((Rb + 7) > sa.limit)
return null;
mem8_loc = sa.base + Rb;
Yd = ld32_mem8_kernel_read();
mem8_loc += 4;
Wd = ld32_mem8_kernel_read();
return [Yd, Wd];
}
/*
Segment Handling Functions
------------------------------
*/
function Zd(Yd, Wd) {
var limit;
limit = (Yd & 0xffff) | (Wd & 0x000f0000);
if (Wd & (1 << 23))
limit = (limit << 12) | 0xfff;
return limit;
}
function ae(Yd, Wd) {
return (((Yd >>> 16) | ((Wd & 0xff) << 16) | (Wd & 0xff000000))) & -1;
}
function be(sa, Yd, Wd) {
sa.base = ae(Yd, Wd);
sa.limit = Zd(Yd, Wd);
sa.flags = Wd;
}
function init_segment_local_vars() {
CS_base = cpu.segs[1].base;//CS
SS_base = cpu.segs[2].base;//SS
if (cpu.segs[2].flags & (1 << 22))
SS_mask = -1;
else
SS_mask = 0xffff;
FS_usage_flag = (((CS_base | SS_base | cpu.segs[3].base | cpu.segs[0].base) == 0) && SS_mask == -1);
if (cpu.segs[1].flags & (1 << 22))
init_CS_flags = 0;
else
init_CS_flags = 0x0100 | 0x0080;
}
function set_segment_vars(ee, selector, base, limit, flags) {
cpu.segs[ee] = {selector: selector,base: base,limit: limit,flags: flags};
init_segment_local_vars();
}
function init_segment_vars_with_selector(Sb, selector) {
set_segment_vars(Sb, selector, (selector << 4), 0xffff, (1 << 15) | (3 << 13) | (1 << 12) | (1 << 8) | (1 << 12) | (1 << 9));
}
function ge(he) {
var ie, Rb, je, ke, le;
if (!(cpu.tr.flags & (1 << 15)))
cpu_abort("invalid tss");
ie = (cpu.tr.flags >> 8) & 0xf;
if ((ie & 7) != 1)
cpu_abort("invalid tss type");
je = ie >> 3;
Rb = (he * 4 + 2) << je;
if (Rb + (4 << je) - 1 > cpu.tr.limit)
blow_up(10, cpu.tr.selector & 0xfffc);
mem8_loc = (cpu.tr.base + Rb) & -1;
if (je == 0) {
le = ld16_mem8_kernel_read();
mem8_loc += 2;
} else {
le = ld32_mem8_kernel_read();
mem8_loc += 4;
}
ke = ld16_mem8_kernel_read();
return [ke, le];
}
function me(intno, ne, error_code, oe, pe) {
var sa, qe, ie, he, selector, re, se;
var te, ue, je;
var e, Yd, Wd, ve, ke, le, we, xe;
var ye, SS_mask;
te = 0;
if (!ne && !pe) {
switch (intno) {
case 8:
case 10:
case 11:
case 12:
case 13:
case 14:
case 17:
te = 1;
break;
}
}
if (ne)
ye = oe;
else
ye = eip;
sa = cpu.idt;
if (intno * 8 + 7 > sa.limit)
blow_up(13, intno * 8 + 2);
mem8_loc = (sa.base + intno * 8) & -1;
Yd = ld32_mem8_kernel_read();
mem8_loc += 4;
Wd = ld32_mem8_kernel_read();
ie = (Wd >> 8) & 0x1f;
switch (ie) {
case 5:
case 7:
case 6:
throw "unsupported task gate";
case 14:
case 15:
break;
default:
blow_up(13, intno * 8 + 2);
break;
}
he = (Wd >> 13) & 3;
se = cpu.cpl;
if (ne && he < se)
blow_up(13, intno * 8 + 2);
if (!(Wd & (1 << 15)))
blow_up(11, intno * 8 + 2);
selector = Yd >> 16;
ve = (Wd & -65536) | (Yd & 0x0000ffff);
if ((selector & 0xfffc) == 0)
blow_up(13, 0);
e = Xd(selector);
if (!e)
blow_up(13, selector & 0xfffc);
Yd = e[0];
Wd = e[1];
if (!(Wd & (1 << 12)) || !(Wd & ((1 << 11))))
blow_up(13, selector & 0xfffc);
he = (Wd >> 13) & 3;
if (he > se)
blow_up(13, selector & 0xfffc);
if (!(Wd & (1 << 15)))
blow_up(11, selector & 0xfffc);
if (!(Wd & (1 << 10)) && he < se) {
e = ge(he);
ke = e[0];
le = e[1];
if ((ke & 0xfffc) == 0)
blow_up(10, ke & 0xfffc);
if ((ke & 3) != he)
blow_up(10, ke & 0xfffc);
e = Xd(ke);
if (!e)
blow_up(10, ke & 0xfffc);
we = e[0];
xe = e[1];
re = (xe >> 13) & 3;
if (re != he)
blow_up(10, ke & 0xfffc);
if (!(xe & (1 << 12)) || (xe & (1 << 11)) || !(xe & (1 << 9)))
blow_up(10, ke & 0xfffc);
if (!(xe & (1 << 15)))
blow_up(10, ke & 0xfffc);
ue = 1;
SS_mask = SS_mask_from_flags(xe);
qe = ae(we, xe);
} else if ((Wd & (1 << 10)) || he == se) {
if (cpu.eflags & 0x00020000)
blow_up(13, selector & 0xfffc);
ue = 0;
SS_mask = SS_mask_from_flags(cpu.segs[2].flags);
qe = cpu.segs[2].base;
le = regs[4];
he = se;
} else {
blow_up(13, selector & 0xfffc);
ue = 0;
SS_mask = 0;
qe = 0;
le = 0;
}
je = ie >> 3;
if (je == 1) {
if (ue) {
if (cpu.eflags & 0x00020000) {
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[5].selector);
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[4].selector);
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[3].selector);
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[0].selector);
}
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[2].selector);
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(regs[4]);
}
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(id());
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[1].selector);
}
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(ye);
}
if (te) {
{
le = (le - 4) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st32_mem8_kernel_write(error_code);
}
}
} else {
if (ue) {
if (cpu.eflags & 0x00020000) {
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[5].selector);
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[4].selector);
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[3].selector);
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[0].selector);
}
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[2].selector);
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(regs[4]);
}
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(id());
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[1].selector);
}
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(ye);
}
if (te) {
{
le = (le - 2) & -1;
mem8_loc = (qe + (le & SS_mask)) & -1;
st16_mem8_kernel_write(error_code);
}
}
}
if (ue) {
if (cpu.eflags & 0x00020000) {
set_segment_vars(0, 0, 0, 0, 0);
set_segment_vars(3, 0, 0, 0, 0);
set_segment_vars(4, 0, 0, 0, 0);
set_segment_vars(5, 0, 0, 0, 0);
}
ke = (ke & ~3) | he;
set_segment_vars(2, ke, qe, Zd(we, xe), xe);
}
regs[4] = (regs[4] & ~SS_mask) | ((le) & SS_mask);
selector = (selector & ~3) | he;
set_segment_vars(1, selector, ae(Yd, Wd), Zd(Yd, Wd), Wd);
change_permission_level(he);
eip = ve, mem_ptr = initial_mem_ptr = 0;
if ((ie & 1) == 0) {
cpu.eflags &= ~0x00000200;
}
cpu.eflags &= ~(0x00000100 | 0x00020000 | 0x00010000 | 0x00004000);
}
function ze(intno, ne, error_code, oe, pe) {
var sa, qe, selector, ve, le, ye;
sa = cpu.idt;
if (intno * 4 + 3 > sa.limit)
blow_up(13, intno * 8 + 2);
mem8_loc = (sa.base + (intno << 2)) >> 0;
ve = ld16_mem8_kernel_read();
mem8_loc = (mem8_loc + 2) >> 0;
selector = ld16_mem8_kernel_read();
le = regs[4];
if (ne)
ye = oe;
else
ye = eip;
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(id());
}
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(cpu.segs[1].selector);
}
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(ye);
}
regs[4] = (regs[4] & ~SS_mask) | ((le) & SS_mask);
eip = ve, mem_ptr = initial_mem_ptr = 0;
cpu.segs[1].selector = selector;
cpu.segs[1].base = (selector << 4);
cpu.eflags &= ~(0x00000200 | 0x00000100 | 0x00040000 | 0x00010000);
}
function Ae(intno, ne, error_code, oe, pe) {
if (intno == 0x06) {
var Be = eip;
var Nb;
na = "do_interrupt: intno=" + _2_bytes_(intno) + " error_code=" + _4_bytes_(error_code) + " EIP=" + _4_bytes_(Be) + " ESP=" + _4_bytes_(regs[4]) + " EAX=" + _4_bytes_(regs[0]) + " EBX=" + _4_bytes_(regs[3]) + " ECX=" + _4_bytes_(regs[1]);
if (intno == 0x0e) {
na += " CR2=" + _4_bytes_(cpu.cr2);
}
console.log(na);
if (intno == 0x06) {
var na, i, n;
na = "Code:";
Nb = (Be + CS_base) >> 0;
n = 4096 - (Nb & 0xfff);
if (n > 15)
n = 15;
for (i = 0; i < n; i++) {
mem8_loc = (Nb + i) & -1;
na += " " + _2_bytes_(ld_8bits_mem8_read());
}
console.log(na);
}
}
if (cpu.cr0 & (1 << 0)) {
me(intno, ne, error_code, oe, pe);
} else {
ze(intno, ne, error_code, oe, pe);
}
}
function Ce(selector) {
var sa, Yd, Wd, Rb, De;
selector &= 0xffff;
if ((selector & 0xfffc) == 0) {
cpu.ldt.base = 0;
cpu.ldt.limit = 0;
} else {
if (selector & 0x4)
blow_up(13, selector & 0xfffc);
sa = cpu.gdt;
Rb = selector & ~7;
De = 7;
if ((Rb + De) > sa.limit)
blow_up(13, selector & 0xfffc);
mem8_loc = (sa.base + Rb) & -1;
Yd = ld32_mem8_kernel_read();
mem8_loc += 4;
Wd = ld32_mem8_kernel_read();
if ((Wd & (1 << 12)) || ((Wd >> 8) & 0xf) != 2)
blow_up(13, selector & 0xfffc);
if (!(Wd & (1 << 15)))
blow_up(11, selector & 0xfffc);
be(cpu.ldt, Yd, Wd);
}
cpu.ldt.selector = selector;
}
function Ee(selector) {
var sa, Yd, Wd, Rb, ie, De;
selector &= 0xffff;
if ((selector & 0xfffc) == 0) {
cpu.tr.base = 0;
cpu.tr.limit = 0;
cpu.tr.flags = 0;
} else {
if (selector & 0x4)
blow_up(13, selector & 0xfffc);
sa = cpu.gdt;
Rb = selector & ~7;
De = 7;
if ((Rb + De) > sa.limit)
blow_up(13, selector & 0xfffc);
mem8_loc = (sa.base + Rb) & -1;
Yd = ld32_mem8_kernel_read();
mem8_loc += 4;
Wd = ld32_mem8_kernel_read();
ie = (Wd >> 8) & 0xf;
if ((Wd & (1 << 12)) || (ie != 1 && ie != 9))
blow_up(13, selector & 0xfffc);
if (!(Wd & (1 << 15)))
blow_up(11, selector & 0xfffc);
be(cpu.tr, Yd, Wd);
Wd |= (1 << 9);
st32_mem8_kernel_write(Wd);
}
cpu.tr.selector = selector;
}
function Fe(Ge, selector) {
var Yd, Wd, se, he, He, sa, Rb;
se = cpu.cpl;
if ((selector & 0xfffc) == 0) {
if (Ge == 2)
blow_up(13, 0);
set_segment_vars(Ge, selector, 0, 0, 0);
} else {
if (selector & 0x4)
sa = cpu.ldt;
else
sa = cpu.gdt;
Rb = selector & ~7;
if ((Rb + 7) > sa.limit)
blow_up(13, selector & 0xfffc);
mem8_loc = (sa.base + Rb) & -1;
Yd = ld32_mem8_kernel_read();
mem8_loc += 4;
Wd = ld32_mem8_kernel_read();
if (!(Wd & (1 << 12)))
blow_up(13, selector & 0xfffc);
He = selector & 3;
he = (Wd >> 13) & 3;
if (Ge == 2) {
if ((Wd & (1 << 11)) || !(Wd & (1 << 9)))
blow_up(13, selector & 0xfffc);
if (He != se || he != se)
blow_up(13, selector & 0xfffc);
} else {
if ((Wd & ((1 << 11) | (1 << 9))) == (1 << 11))
blow_up(13, selector & 0xfffc);
if (!(Wd & (1 << 11)) || !(Wd & (1 << 10))) {
if (he < se || he < He)
blow_up(13, selector & 0xfffc);
}
}
if (!(Wd & (1 << 15))) {
if (Ge == 2)
blow_up(12, selector & 0xfffc);
else
blow_up(11, selector & 0xfffc);
}
if (!(Wd & (1 << 8))) {
Wd |= (1 << 8);
st32_mem8_kernel_write(Wd);
}
set_segment_vars(Ge, selector, ae(Yd, Wd), Zd(Yd, Wd), Wd);
}
}
function Ie(Ge, selector) {
var sa;
selector &= 0xffff;
if (!(cpu.cr0 & (1 << 0))) {
sa = cpu.segs[Ge];
sa.selector = selector;
sa.base = selector << 4;
} else if (cpu.eflags & 0x00020000) {
init_segment_vars_with_selector(Ge, selector);
} else {
Fe(Ge, selector);
}
}
function Je(Ke, Le) {
eip = Le, mem_ptr = initial_mem_ptr = 0;
cpu.segs[1].selector = Ke;
cpu.segs[1].base = (Ke << 4);
init_segment_local_vars();
}
function Me(Ke, Le) {
var Ne, ie, Yd, Wd, se, he, He, limit, e;
if ((Ke & 0xfffc) == 0)
blow_up(13, 0);
e = Xd(Ke);
if (!e)
blow_up(13, Ke & 0xfffc);
Yd = e[0];
Wd = e[1];
se = cpu.cpl;
if (Wd & (1 << 12)) {
if (!(Wd & (1 << 11)))
blow_up(13, Ke & 0xfffc);
he = (Wd >> 13) & 3;
if (Wd & (1 << 10)) {
if (he > se)
blow_up(13, Ke & 0xfffc);
} else {
He = Ke & 3;
if (He > se)
blow_up(13, Ke & 0xfffc);
if (he != se)
blow_up(13, Ke & 0xfffc);
}
if (!(Wd & (1 << 15)))
blow_up(11, Ke & 0xfffc);
limit = Zd(Yd, Wd);
if ((Le >>> 0) > (limit >>> 0))
blow_up(13, Ke & 0xfffc);
set_segment_vars(1, (Ke & 0xfffc) | se, ae(Yd, Wd), limit, Wd);
eip = Le, mem_ptr = initial_mem_ptr = 0;
} else {
cpu_abort("unsupported jump to call or task gate");
}
}
function Oe(Ke, Le) {
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000)) {
Je(Ke, Le);
} else {
Me(Ke, Le);
}
}
function Pe(Ge, se) {
var he, Wd;
if ((Ge == 4 || Ge == 5) && (cpu.segs[Ge].selector & 0xfffc) == 0)
return;
Wd = cpu.segs[Ge].flags;
he = (Wd >> 13) & 3;
if (!(Wd & (1 << 11)) || !(Wd & (1 << 10))) {
if (he < se) {
set_segment_vars(Ge, 0, 0, 0, 0);
}
}
}
function Qe(je, Ke, Le, oe) {
var le;
le = regs[4];
if (je) {
{
le = (le - 4) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st32_mem8_write(cpu.segs[1].selector);
}
{
le = (le - 4) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st32_mem8_write(oe);
}
} else {
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(cpu.segs[1].selector);
}
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(oe);
}
}
regs[4] = (regs[4] & ~SS_mask) | ((le) & SS_mask);
eip = Le, mem_ptr = initial_mem_ptr = 0;
cpu.segs[1].selector = Ke;
cpu.segs[1].base = (Ke << 4);
init_segment_local_vars();
}
function Re(je, Ke, Le, oe) {
var ue, i, e;
var Yd, Wd, se, he, He, selector, ve, Se;
var ke, we, xe, Te, ie, re, SS_mask;
var x, limit, Ue;
var qe, Ve, We;
if ((Ke & 0xfffc) == 0)
blow_up(13, 0);
e = Xd(Ke);
if (!e)
blow_up(13, Ke & 0xfffc);
Yd = e[0];
Wd = e[1];
se = cpu.cpl;
We = regs[4];
if (Wd & (1 << 12)) {
if (!(Wd & (1 << 11)))
blow_up(13, Ke & 0xfffc);
he = (Wd >> 13) & 3;
if (Wd & (1 << 10)) {
if (he > se)
blow_up(13, Ke & 0xfffc);
} else {
He = Ke & 3;
if (He > se)
blow_up(13, Ke & 0xfffc);
if (he != se)
blow_up(13, Ke & 0xfffc);
}
if (!(Wd & (1 << 15)))
blow_up(11, Ke & 0xfffc);
{
Te = We;
SS_mask = SS_mask_from_flags(cpu.segs[2].flags);
qe = cpu.segs[2].base;
if (je) {
{
Te = (Te - 4) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[1].selector);
}
{
Te = (Te - 4) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st32_mem8_kernel_write(oe);
}
} else {
{
Te = (Te - 2) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[1].selector);
}
{
Te = (Te - 2) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st16_mem8_kernel_write(oe);
}
}
limit = Zd(Yd, Wd);
if (Le > limit)
blow_up(13, Ke & 0xfffc);
regs[4] = (regs[4] & ~SS_mask) | ((Te) & SS_mask);
set_segment_vars(1, (Ke & 0xfffc) | se, ae(Yd, Wd), limit, Wd);
eip = Le, mem_ptr = initial_mem_ptr = 0;
}
} else {
ie = (Wd >> 8) & 0x1f;
he = (Wd >> 13) & 3;
He = Ke & 3;
switch (ie) {
case 1:
case 9:
case 5:
throw "unsupported task gate";
return;
case 4:
case 12:
break;
default:
blow_up(13, Ke & 0xfffc);
break;
}
je = ie >> 3;
if (he < se || he < He)
blow_up(13, Ke & 0xfffc);
if (!(Wd & (1 << 15)))
blow_up(11, Ke & 0xfffc);
selector = Yd >> 16;
ve = (Wd & 0xffff0000) | (Yd & 0x0000ffff);
Se = Wd & 0x1f;
if ((selector & 0xfffc) == 0)
blow_up(13, 0);
e = Xd(selector);
if (!e)
blow_up(13, selector & 0xfffc);
Yd = e[0];
Wd = e[1];
if (!(Wd & (1 << 12)) || !(Wd & ((1 << 11))))
blow_up(13, selector & 0xfffc);
he = (Wd >> 13) & 3;
if (he > se)
blow_up(13, selector & 0xfffc);
if (!(Wd & (1 << 15)))
blow_up(11, selector & 0xfffc);
if (!(Wd & (1 << 10)) && he < se) {
e = ge(he);
ke = e[0];
Te = e[1];
if ((ke & 0xfffc) == 0)
blow_up(10, ke & 0xfffc);
if ((ke & 3) != he)
blow_up(10, ke & 0xfffc);
e = Xd(ke);
if (!e)
blow_up(10, ke & 0xfffc);
we = e[0];
xe = e[1];
re = (xe >> 13) & 3;
if (re != he)
blow_up(10, ke & 0xfffc);
if (!(xe & (1 << 12)) || (xe & (1 << 11)) || !(xe & (1 << 9)))
blow_up(10, ke & 0xfffc);
if (!(xe & (1 << 15)))
blow_up(10, ke & 0xfffc);
Ue = SS_mask_from_flags(cpu.segs[2].flags);
Ve = cpu.segs[2].base;
SS_mask = SS_mask_from_flags(xe);
qe = ae(we, xe);
if (je) {
{
Te = (Te - 4) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[2].selector);
}
{
Te = (Te - 4) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st32_mem8_kernel_write(We);
}
for (i = Se - 1; i >= 0; i--) {
x = Xe(Ve + ((We + i * 4) & Ue));
{
Te = (Te - 4) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st32_mem8_kernel_write(x);
}
}
} else {
{
Te = (Te - 2) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[2].selector);
}
{
Te = (Te - 2) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st16_mem8_kernel_write(We);
}
for (i = Se - 1; i >= 0; i--) {
x = Ye(Ve + ((We + i * 2) & Ue));
{
Te = (Te - 2) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st16_mem8_kernel_write(x);
}
}
}
ue = 1;
} else {
Te = We;
SS_mask = SS_mask_from_flags(cpu.segs[2].flags);
qe = cpu.segs[2].base;
ue = 0;
}
if (je) {
{
Te = (Te - 4) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st32_mem8_kernel_write(cpu.segs[1].selector);
}
{
Te = (Te - 4) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st32_mem8_kernel_write(oe);
}
} else {
{
Te = (Te - 2) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st16_mem8_kernel_write(cpu.segs[1].selector);
}
{
Te = (Te - 2) & -1;
mem8_loc = (qe + (Te & SS_mask)) & -1;
st16_mem8_kernel_write(oe);
}
}
if (ue) {
ke = (ke & ~3) | he;
set_segment_vars(2, ke, qe, Zd(we, xe), xe);
}
selector = (selector & ~3) | he;
set_segment_vars(1, selector, ae(Yd, Wd), Zd(Yd, Wd), Wd);
change_permission_level(he);
regs[4] = (regs[4] & ~SS_mask) | ((Te) & SS_mask);
eip = ve, mem_ptr = initial_mem_ptr = 0;
}
}
function Ze(je, Ke, Le, oe) {
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000)) {
Qe(je, Ke, Le, oe);
} else {
Re(je, Ke, Le, oe);
}
}
function af(je, bf, cf) {
var Te, Ke, Le, df, SS_mask, qe, ef;
SS_mask = 0xffff;
Te = regs[4];
qe = cpu.segs[2].base;
if (je == 1) {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Le = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Ke = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
Ke &= 0xffff;
if (bf) {
mem8_loc = (qe + (Te & SS_mask)) & -1;
df = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
} else {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Le = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Ke = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
if (bf) {
mem8_loc = (qe + (Te & SS_mask)) & -1;
df = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
}
regs[4] = (regs[4] & ~SS_mask) | ((Te + cf) & SS_mask);
cpu.segs[1].selector = Ke;
cpu.segs[1].base = (Ke << 4);
eip = Le, mem_ptr = initial_mem_ptr = 0;
if (bf) {
if (cpu.eflags & 0x00020000)
ef = 0x00000100 | 0x00040000 | 0x00200000 | 0x00000200 | 0x00010000 | 0x00004000;
else
ef = 0x00000100 | 0x00040000 | 0x00200000 | 0x00000200 | 0x00003000 | 0x00010000 | 0x00004000;
if (je == 0)
ef &= 0xffff;
kd(df, ef);
}
init_segment_local_vars();
}
function ff(je, bf, cf) {
var Ke, df, gf;
var hf, jf, kf, lf;
var e, Yd, Wd, we, xe;
var se, he, He, ef, iopl;
var qe, Te, Le, wd, SS_mask;
SS_mask = SS_mask_from_flags(cpu.segs[2].flags);
Te = regs[4];
qe = cpu.segs[2].base;
df = 0;
if (je == 1) {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Le = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Ke = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
Ke &= 0xffff;
if (bf) {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
df = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
if (df & 0x00020000) {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
wd = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
gf = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
hf = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
jf = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
kf = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
lf = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
kd(df, 0x00000100 | 0x00040000 | 0x00200000 | 0x00000200 | 0x00003000 | 0x00020000 | 0x00004000 | 0x00080000 | 0x00100000);
init_segment_vars_with_selector(1, Ke & 0xffff);
change_permission_level(3);
init_segment_vars_with_selector(2, gf & 0xffff);
init_segment_vars_with_selector(0, hf & 0xffff);
init_segment_vars_with_selector(3, jf & 0xffff);
init_segment_vars_with_selector(4, kf & 0xffff);
init_segment_vars_with_selector(5, lf & 0xffff);
eip = Le & 0xffff, mem_ptr = initial_mem_ptr = 0;
regs[4] = (regs[4] & ~SS_mask) | ((wd) & SS_mask);
return;
}
}
} else {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Le = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
Ke = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
if (bf) {
mem8_loc = (qe + (Te & SS_mask)) & -1;
df = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
}
if ((Ke & 0xfffc) == 0)
blow_up(13, Ke & 0xfffc);
e = Xd(Ke);
if (!e)
blow_up(13, Ke & 0xfffc);
Yd = e[0];
Wd = e[1];
if (!(Wd & (1 << 12)) || !(Wd & (1 << 11)))
blow_up(13, Ke & 0xfffc);
se = cpu.cpl;
He = Ke & 3;
if (He < se)
blow_up(13, Ke & 0xfffc);
he = (Wd >> 13) & 3;
if (Wd & (1 << 10)) {
if (he > He)
blow_up(13, Ke & 0xfffc);
} else {
if (he != He)
blow_up(13, Ke & 0xfffc);
}
if (!(Wd & (1 << 15)))
blow_up(11, Ke & 0xfffc);
Te = (Te + cf) & -1;
if (He == se) {
set_segment_vars(1, Ke, ae(Yd, Wd), Zd(Yd, Wd), Wd);
} else {
if (je == 1) {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
wd = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
gf = ld32_mem8_kernel_read();
Te = (Te + 4) & -1;
}
gf &= 0xffff;
} else {
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
wd = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
{
mem8_loc = (qe + (Te & SS_mask)) & -1;
gf = ld16_mem8_kernel_read();
Te = (Te + 2) & -1;
}
}
if ((gf & 0xfffc) == 0) {
blow_up(13, 0);
} else {
if ((gf & 3) != He)
blow_up(13, gf & 0xfffc);
e = Xd(gf);
if (!e)
blow_up(13, gf & 0xfffc);
we = e[0];
xe = e[1];
if (!(xe & (1 << 12)) || (xe & (1 << 11)) || !(xe & (1 << 9)))
blow_up(13, gf & 0xfffc);
he = (xe >> 13) & 3;
if (he != He)
blow_up(13, gf & 0xfffc);
if (!(xe & (1 << 15)))
blow_up(11, gf & 0xfffc);
set_segment_vars(2, gf, ae(we, xe), Zd(we, xe), xe);
}
set_segment_vars(1, Ke, ae(Yd, Wd), Zd(Yd, Wd), Wd);
change_permission_level(He);
Te = wd;
SS_mask = SS_mask_from_flags(xe);
Pe(0, He);
Pe(3, He);
Pe(4, He);
Pe(5, He);
Te = (Te + cf) & -1;
}
regs[4] = (regs[4] & ~SS_mask) | ((Te) & SS_mask);
eip = Le, mem_ptr = initial_mem_ptr = 0;
if (bf) {
ef = 0x00000100 | 0x00040000 | 0x00200000 | 0x00010000 | 0x00004000;
if (se == 0)
ef |= 0x00003000;
iopl = (cpu.eflags >> 12) & 3;
if (se <= iopl)
ef |= 0x00000200;
if (je == 0)
ef &= 0xffff;
kd(df, ef);
}
}
function mf(je) {
var iopl;
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000)) {
if (cpu.eflags & 0x00020000) {
iopl = (cpu.eflags >> 12) & 3;
if (iopl != 3)
blow_up_errcode0(13);
}
af(je, 1, 0);
} else {
if (cpu.eflags & 0x00004000) {
throw "unsupported task gate";
} else {
ff(je, 1, 0);
}
}
}
function nf(je, cf) {
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000)) {
af(je, 0, cf);
} else {
ff(je, 0, cf);
}
}
function of(selector, pf) {
var e, Yd, Wd, He, he, se, ie;
if ((selector & 0xfffc) == 0)
return null;
e = Xd(selector);
if (!e)
return null;
Yd = e[0];
Wd = e[1];
He = selector & 3;
he = (Wd >> 13) & 3;
se = cpu.cpl;
if (Wd & (1 << 12)) {
if ((Wd & (1 << 11)) && (Wd & (1 << 10))) {
} else {
if (he < se || he < He)
return null;
}
} else {
ie = (Wd >> 8) & 0xf;
switch (ie) {
case 1:
case 2:
case 3:
case 9:
case 11:
break;
case 4:
case 5:
case 12:
if (pf)
return null;
break;
default:
return null;
}
if (he < se || he < He)
return null;
}
if (pf) {
return Zd(Yd, Wd);
} else {
return Wd & 0x00f0ff00;
}
}
function qf(je, pf) {
var x, mem8, register_1, selector;
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000))
blow_up_errcode0(6);
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
selector = regs[mem8 & 7] & 0xffff;
} else {
mem8_loc = Pb(mem8);
selector = ld_16bits_mem8_read();
}
x = of(selector, pf);
_src = hd();
if (x === null) {
_src &= ~0x0040;
} else {
_src |= 0x0040;
if (je)
regs[register_1] = x;
else
set_lower_two_bytes_of_register(register_1, x);
}
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
function rf(selector, ud) {
var e, Yd, Wd, He, he, se;
if ((selector & 0xfffc) == 0)
return 0;
e = Xd(selector);
if (!e)
return 0;
Yd = e[0];
Wd = e[1];
if (!(Wd & (1 << 12)))
return 0;
He = selector & 3;
he = (Wd >> 13) & 3;
se = cpu.cpl;
if (Wd & (1 << 11)) {
if (ud) {
return 0;
} else {
if (!(Wd & (1 << 9)))
return 1;
if (!(Wd & (1 << 10))) {
if (he < se || he < He)
return 0;
}
}
} else {
if (he < se || he < He)
return 0;
if (ud && !(Wd & (1 << 9)))
return 0;
}
return 1;
}
function sf(selector, ud) {
var z;
z = rf(selector, ud);
_src = hd();
if (z)
_src |= 0x0040;
else
_src &= ~0x0040;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
function tf() {
var mem8, x, y, register_0;
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000))
blow_up_errcode0(6);
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = regs[register_0] & 0xffff;
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
}
y = regs[(mem8 >> 3) & 7];
_src = hd();
if ((x & 3) < (y & 3)) {
x = (x & ~3) | (y & 3);
if ((mem8 >> 6) == 3) {
set_lower_two_bytes_of_register(register_0, x);
} else {
st16_mem8_write(x);
}
_src |= 0x0040;
} else {
_src &= ~0x0040;
}
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
function uf() {
var Rb;
Rb = regs[0];
switch (Rb) {
case 0:
regs[0] = 1;
regs[3] = 0x756e6547 & -1;
regs[2] = 0x49656e69 & -1;
regs[1] = 0x6c65746e & -1;
break;
case 1:
default:
regs[0] = (5 << 8) | (4 << 4) | 3;
regs[3] = 8 << 8;
regs[1] = 0;
regs[2] = (1 << 4);
break;
}
}
function vf(base) {
var wf, xf;
if (base == 0)
blow_up_errcode0(0);
wf = regs[0] & 0xff;
xf = (wf / base) & -1;
wf = (wf % base);
regs[0] = (regs[0] & ~0xffff) | wf | (xf << 8);
_dst = (((wf) << 24) >> 24);
_op = 12;
}
function yf(base) {
var wf, xf;
wf = regs[0] & 0xff;
xf = (regs[0] >> 8) & 0xff;
wf = (xf * base + wf) & 0xff;
regs[0] = (regs[0] & ~0xffff) | wf;
_dst = (((wf) << 24) >> 24);
_op = 12;
}
function zf() {
var Af, wf, xf, Bf, jd;
jd = hd();
Bf = jd & 0x0010;
wf = regs[0] & 0xff;
xf = (regs[0] >> 8) & 0xff;
Af = (wf > 0xf9);
if (((wf & 0x0f) > 9) || Bf) {
wf = (wf + 6) & 0x0f;
xf = (xf + 1 + Af) & 0xff;
jd |= 0x0001 | 0x0010;
} else {
jd &= ~(0x0001 | 0x0010);
wf &= 0x0f;
}
regs[0] = (regs[0] & ~0xffff) | wf | (xf << 8);
_src = jd;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
function Cf() {
var Af, wf, xf, Bf, jd;
jd = hd();
Bf = jd & 0x0010;
wf = regs[0] & 0xff;
xf = (regs[0] >> 8) & 0xff;
Af = (wf < 6);
if (((wf & 0x0f) > 9) || Bf) {
wf = (wf - 6) & 0x0f;
xf = (xf - 1 - Af) & 0xff;
jd |= 0x0001 | 0x0010;
} else {
jd &= ~(0x0001 | 0x0010);
wf &= 0x0f;
}
regs[0] = (regs[0] & ~0xffff) | wf | (xf << 8);
_src = jd;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
function Df() {
var wf, Bf, Ef, jd;
jd = hd();
Ef = jd & 0x0001;
Bf = jd & 0x0010;
wf = regs[0] & 0xff;
jd = 0;
if (((wf & 0x0f) > 9) || Bf) {
wf = (wf + 6) & 0xff;
jd |= 0x0010;
}
if ((wf > 0x9f) || Ef) {
wf = (wf + 0x60) & 0xff;
jd |= 0x0001;
}
regs[0] = (regs[0] & ~0xff) | wf;
jd |= (wf == 0) << 6;
jd |= parity_bit_check_array[wf] << 2;
jd |= (wf & 0x80);
_src = jd;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
function Ff() {
var wf, Gf, Bf, Ef, jd;
jd = hd();
Ef = jd & 0x0001;
Bf = jd & 0x0010;
wf = regs[0] & 0xff;
jd = 0;
Gf = wf;
if (((wf & 0x0f) > 9) || Bf) {
jd |= 0x0010;
if (wf < 6 || Ef)
jd |= 0x0001;
wf = (wf - 6) & 0xff;
}
if ((Gf > 0x99) || Ef) {
wf = (wf - 0x60) & 0xff;
jd |= 0x0001;
}
regs[0] = (regs[0] & ~0xff) | wf;
jd |= (wf == 0) << 6;
jd |= parity_bit_check_array[wf] << 2;
jd |= (wf & 0x80);
_src = jd;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
}
function Hf() {
var mem8, x, y, z;
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 3) == 3)
blow_up_errcode0(6);
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
mem8_loc = (mem8_loc + 4) & -1;
y = ld_32bits_mem8_read();
register_1 = (mem8 >> 3) & 7;
z = regs[register_1];
if (z < x || z > y)
blow_up_errcode0(5);
}
function If() {
var mem8, x, y, z;
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 3) == 3)
blow_up_errcode0(6);
mem8_loc = Pb(mem8);
x = (ld_16bits_mem8_read() << 16) >> 16;
mem8_loc = (mem8_loc + 2) & -1;
y = (ld_16bits_mem8_read() << 16) >> 16;
register_1 = (mem8 >> 3) & 7;
z = (regs[register_1] << 16) >> 16;
if (z < x || z > y)
blow_up_errcode0(5);
}
function Jf() {
var x, y, register_1;
y = (regs[4] - 16) >> 0;
mem8_loc = ((y & SS_mask) + SS_base) >> 0;
for (register_1 = 7; register_1 >= 0; register_1--) {
x = regs[register_1];
st16_mem8_write(x);
mem8_loc = (mem8_loc + 2) >> 0;
}
regs[4] = (regs[4] & ~SS_mask) | ((y) & SS_mask);
}
function Kf() {
var x, y, register_1;
y = (regs[4] - 32) >> 0;
mem8_loc = ((y & SS_mask) + SS_base) >> 0;
for (register_1 = 7; register_1 >= 0; register_1--) {
x = regs[register_1];
st32_mem8_write(x);
mem8_loc = (mem8_loc + 4) >> 0;
}
regs[4] = (regs[4] & ~SS_mask) | ((y) & SS_mask);
}
function Lf() {
var register_1;
mem8_loc = ((regs[4] & SS_mask) + SS_base) >> 0;
for (register_1 = 7; register_1 >= 0; register_1--) {
if (register_1 != 4) {
set_lower_two_bytes_of_register(register_1, ld_16bits_mem8_read());
}
mem8_loc = (mem8_loc + 2) >> 0;
}
regs[4] = (regs[4] & ~SS_mask) | ((regs[4] + 16) & SS_mask);
}
function Mf() {
var register_1;
mem8_loc = ((regs[4] & SS_mask) + SS_base) >> 0;
for (register_1 = 7; register_1 >= 0; register_1--) {
if (register_1 != 4) {
regs[register_1] = ld_32bits_mem8_read();
}
mem8_loc = (mem8_loc + 4) >> 0;
}
regs[4] = (regs[4] & ~SS_mask) | ((regs[4] + 32) & SS_mask);
}
function Nf() {
var x, y;
y = regs[5];
mem8_loc = ((y & SS_mask) + SS_base) >> 0;
x = ld_16bits_mem8_read();
set_lower_two_bytes_of_register(5, x);
regs[4] = (regs[4] & ~SS_mask) | ((y + 2) & SS_mask);
}
function Of() {
var x, y;
y = regs[5];
mem8_loc = ((y & SS_mask) + SS_base) >> 0;
x = ld_32bits_mem8_read();
regs[5] = x;
regs[4] = (regs[4] & ~SS_mask) | ((y + 4) & SS_mask);
}
function Pf() {
var cf, Qf, le, Rf, x, Sf;
cf = Ob();
Qf = phys_mem8[mem_ptr++];
Qf &= 0x1f;
le = regs[4];
Rf = regs[5];
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(Rf);
}
Sf = le;
if (Qf != 0) {
while (Qf > 1) {
Rf = (Rf - 2) >> 0;
mem8_loc = ((Rf & SS_mask) + SS_base) >> 0;
x = ld_16bits_mem8_read();
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(x);
}
Qf--;
}
{
le = (le - 2) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st16_mem8_write(Sf);
}
}
le = (le - cf) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
ld_16bits_mem8_write();
regs[5] = (regs[5] & ~SS_mask) | (Sf & SS_mask);
regs[4] = le;
}
function Tf() {
var cf, Qf, le, Rf, x, Sf;
cf = Ob();
Qf = phys_mem8[mem_ptr++];
Qf &= 0x1f;
le = regs[4];
Rf = regs[5];
{
le = (le - 4) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st32_mem8_write(Rf);
}
Sf = le;
if (Qf != 0) {
while (Qf > 1) {
Rf = (Rf - 4) >> 0;
mem8_loc = ((Rf & SS_mask) + SS_base) >> 0;
x = ld_32bits_mem8_read();
{
le = (le - 4) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st32_mem8_write(x);
}
Qf--;
}
{
le = (le - 4) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
st32_mem8_write(Sf);
}
}
le = (le - cf) >> 0;
mem8_loc = ((le & SS_mask) + SS_base) >> 0;
ld_32bits_mem8_write();
regs[5] = (regs[5] & ~SS_mask) | (Sf & SS_mask);
regs[4] = (regs[4] & ~SS_mask) | ((le) & SS_mask);
}
function Uf(Sb) {
var x, y, mem8;
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 3) == 3)
blow_up_errcode0(6);
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
mem8_loc += 4;
y = ld_16bits_mem8_read();
Ie(Sb, y);
regs[(mem8 >> 3) & 7] = x;
}
function Vf(Sb) {
var x, y, mem8;
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 3) == 3)
blow_up_errcode0(6);
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
mem8_loc += 2;
y = ld_16bits_mem8_read();
Ie(Sb, y);
set_lower_two_bytes_of_register((mem8 >> 3) & 7, x);
}
function Wf() {
var Xf, Yf, Zf, ag, iopl, x;
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
Zf = regs[2] & 0xffff;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = cpu.ld8_port(Zf);
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
st8_mem8_write(x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = cpu.ld8_port(Zf);
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
st8_mem8_write(x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
}
}
function bg() {
var Xf, cg, Sb, ag, Zf, iopl, x;
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Zf = regs[2] & 0xffff;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
x = ld_8bits_mem8_read();
cpu.st8_port(Zf, x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
x = ld_8bits_mem8_read();
cpu.st8_port(Zf, x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
}
}
function dg() {
var Xf, Yf, cg, ag, Sb, eg;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Yf = regs[7];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
eg = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
{
x = ld_8bits_mem8_read();
mem8_loc = eg;
st8_mem8_write(x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
}
} else {
x = ld_8bits_mem8_read();
mem8_loc = eg;
st8_mem8_write(x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
}
}
function fg() {
var Xf, Yf, ag;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
{
st8_mem8_write(regs[0]);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
}
} else {
st8_mem8_write(regs[0]);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
}
}
function gg() {
var Xf, Yf, cg, ag, Sb, eg;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Yf = regs[7];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
eg = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_8bits_mem8_read();
mem8_loc = eg;
y = ld_8bits_mem8_read();
do_8bit_math(7, x, y);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (CS_flags & 0x0010) {
if (!(_dst == 0))
return;
} else {
if ((_dst == 0))
return;
}
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_8bits_mem8_read();
mem8_loc = eg;
y = ld_8bits_mem8_read();
do_8bit_math(7, x, y);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
}
}
function hg() {
var Xf, cg, Sb, ag, x;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_8bits_mem8_read();
regs[0] = (regs[0] & -256) | x;
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_8bits_mem8_read();
regs[0] = (regs[0] & -256) | x;
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 0)) & Xf);
}
}
function ig() {
var Xf, Yf, ag, x;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_8bits_mem8_read();
do_8bit_math(7, regs[0], x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (CS_flags & 0x0010) {
if (!(_dst == 0))
return;
} else {
if ((_dst == 0))
return;
}
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_8bits_mem8_read();
do_8bit_math(7, regs[0], x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 0)) & Xf);
}
}
function jg() {
var Xf, Yf, Zf, ag, iopl, x;
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
Zf = regs[2] & 0xffff;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = cpu.ld16_port(Zf);
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
st16_mem8_write(x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = cpu.ld16_port(Zf);
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
st16_mem8_write(x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
}
}
function kg() {
var Xf, cg, Sb, ag, Zf, iopl, x;
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Zf = regs[2] & 0xffff;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
x = ld_16bits_mem8_read();
cpu.st16_port(Zf, x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
x = ld_16bits_mem8_read();
cpu.st16_port(Zf, x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
}
}
function lg() {
var Xf, Yf, cg, ag, Sb, eg;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Yf = regs[7];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
eg = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
{
x = ld_16bits_mem8_read();
mem8_loc = eg;
st16_mem8_write(x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
}
} else {
x = ld_16bits_mem8_read();
mem8_loc = eg;
st16_mem8_write(x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
}
}
function mg() {
var Xf, Yf, ag;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
{
st16_mem8_write(regs[0]);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
}
} else {
st16_mem8_write(regs[0]);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
}
}
function ng() {
var Xf, Yf, cg, ag, Sb, eg;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Yf = regs[7];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
eg = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_16bits_mem8_read();
mem8_loc = eg;
y = ld_16bits_mem8_read();
do_16bit_math(7, x, y);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (CS_flags & 0x0010) {
if (!(_dst == 0))
return;
} else {
if ((_dst == 0))
return;
}
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_16bits_mem8_read();
mem8_loc = eg;
y = ld_16bits_mem8_read();
do_16bit_math(7, x, y);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
}
}
function og() {
var Xf, cg, Sb, ag, x;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_16bits_mem8_read();
regs[0] = (regs[0] & -65536) | x;
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_16bits_mem8_read();
regs[0] = (regs[0] & -65536) | x;
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 1)) & Xf);
}
}
function pg() {
var Xf, Yf, ag, x;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_16bits_mem8_read();
do_16bit_math(7, regs[0], x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (CS_flags & 0x0010) {
if (!(_dst == 0))
return;
} else {
if ((_dst == 0))
return;
}
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_16bits_mem8_read();
do_16bit_math(7, regs[0], x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 1)) & Xf);
}
}
function qg() {
var Xf, Yf, Zf, ag, iopl, x;
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
Zf = regs[2] & 0xffff;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = cpu.ld32_port(Zf);
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
st32_mem8_write(x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = cpu.ld32_port(Zf);
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
st32_mem8_write(x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
}
}
function rg() {
var Xf, cg, Sb, ag, Zf, iopl, x;
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Zf = regs[2] & 0xffff;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
x = ld_32bits_mem8_read();
cpu.st32_port(Zf, x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
x = ld_32bits_mem8_read();
cpu.st32_port(Zf, x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
}
}
function sg() {
var Xf, Yf, cg, ag, Sb, eg;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Yf = regs[7];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
eg = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
if (Xf == -1 && cpu.df == 1 && ((mem8_loc | eg) & 3) == 0) {
var tg, l, ug, vg, i, wg;
tg = ag >>> 0;
l = (4096 - (mem8_loc & 0xfff)) >> 2;
if (tg > l)
tg = l;
l = (4096 - (eg & 0xfff)) >> 2;
if (tg > l)
tg = l;
ug = td(mem8_loc, 0);
vg = td(eg, 1);
wg = tg << 2;
vg >>= 2;
ug >>= 2;
for (i = 0; i < tg; i++)
phys_mem32[vg + i] = phys_mem32[ug + i];
regs[6] = (cg + wg) >> 0;
regs[7] = (Yf + wg) >> 0;
regs[1] = ag = (ag - tg) >> 0;
if (ag)
mem_ptr = initial_mem_ptr;
} else {
x = ld_32bits_mem8_read();
mem8_loc = eg;
st32_mem8_write(x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
}
} else {
x = ld_32bits_mem8_read();
mem8_loc = eg;
st32_mem8_write(x);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
}
}
function xg() {
var Xf, Yf, ag;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
if (Xf == -1 && cpu.df == 1 && (mem8_loc & 3) == 0) {
var tg, l, vg, i, wg, x;
tg = ag >>> 0;
l = (4096 - (mem8_loc & 0xfff)) >> 2;
if (tg > l)
tg = l;
vg = td(regs[7], 1);
x = regs[0];
vg >>= 2;
for (i = 0; i < tg; i++)
phys_mem32[vg + i] = x;
wg = tg << 2;
regs[7] = (Yf + wg) >> 0;
regs[1] = ag = (ag - tg) >> 0;
if (ag)
mem_ptr = initial_mem_ptr;
} else {
st32_mem8_write(regs[0]);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
}
} else {
st32_mem8_write(regs[0]);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
}
}
function yg() {
var Xf, Yf, cg, ag, Sb, eg;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
Yf = regs[7];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
eg = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_32bits_mem8_read();
mem8_loc = eg;
y = ld_32bits_mem8_read();
do_32bit_math(7, x, y);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (CS_flags & 0x0010) {
if (!(_dst == 0))
return;
} else {
if ((_dst == 0))
return;
}
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_32bits_mem8_read();
mem8_loc = eg;
y = ld_32bits_mem8_read();
do_32bit_math(7, x, y);
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
}
}
function zg() {
var Xf, cg, Sb, ag, x;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Sb = CS_flags & 0x000f;
if (Sb == 0)
Sb = 3;
else
Sb--;
cg = regs[6];
mem8_loc = ((cg & Xf) + cpu.segs[Sb].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_32bits_mem8_read();
regs[0] = x;
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_32bits_mem8_read();
regs[0] = x;
regs[6] = (cg & ~Xf) | ((cg + (cpu.df << 2)) & Xf);
}
}
function Ag() {
var Xf, Yf, ag, x;
if (CS_flags & 0x0080)
Xf = 0xffff;
else
Xf = -1;
Yf = regs[7];
mem8_loc = ((Yf & Xf) + cpu.segs[0].base) >> 0;
if (CS_flags & (0x0010 | 0x0020)) {
ag = regs[1];
if ((ag & Xf) == 0)
return;
x = ld_32bits_mem8_read();
do_32bit_math(7, regs[0], x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
regs[1] = ag = (ag & ~Xf) | ((ag - 1) & Xf);
if (CS_flags & 0x0010) {
if (!(_dst == 0))
return;
} else {
if ((_dst == 0))
return;
}
if (ag & Xf)
mem_ptr = initial_mem_ptr;
} else {
x = ld_32bits_mem8_read();
do_32bit_math(7, regs[0], x);
regs[7] = (Yf & ~Xf) | ((Yf + (cpu.df << 2)) & Xf);
}
}
cpu = this;
phys_mem8 = this.phys_mem8;
phys_mem16 = this.phys_mem16;
phys_mem32 = this.phys_mem32;
tlb_read_user = this.tlb_read_user;
tlb_write_user = this.tlb_write_user;
tlb_read_kernel = this.tlb_read_kernel;
tlb_write_kernel = this.tlb_write_kernel;
if (cpu.cpl == 3) { //current privilege level
_tlb_read_ = tlb_read_user;
_tlb_write_ = tlb_write_user;
} else {
_tlb_read_ = tlb_read_kernel;
_tlb_write_ = tlb_write_kernel;
}
if (cpu.halted) {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) {
cpu.halted = 0;
} else {
return 257;
}
}
regs = this.regs;
_src = this.cc_src;
_dst = this.cc_dst;
_op = this.cc_op;
_op2 = this.cc_op2;
_dst2 = this.cc_dst2;
eip = this.eip;
init_segment_local_vars();
exit_code = 256;
cycles_left = N_cycles;
if (va) {
Ae(va.intno, 0, va.error_code, 0, 0);
}
if (cpu.hard_intno >= 0) {
Ae(cpu.hard_intno, 0, 0, 0, 1);
cpu.hard_intno = -1;
}
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) {
cpu.hard_intno = cpu.get_hard_intno();
Ae(cpu.hard_intno, 0, 0, 0, 1);
cpu.hard_intno = -1;
}
mem_ptr = 0;
initial_mem_ptr = 0;
Bg: do {
eip = (eip + mem_ptr - initial_mem_ptr) >> 0;
Nb = (eip + CS_base) >> 0;
Lb = _tlb_read_[Nb >>> 12];
if (((Lb | Nb) & 0xfff) >= (4096 - 15 + 1)) {
var Cg;
if (Lb == -1)
do_tlb_set_page(Nb, 0, cpu.cpl == 3);
Lb = _tlb_read_[Nb >>> 12];
initial_mem_ptr = mem_ptr = Nb ^ Lb;
OPbyte = phys_mem8[mem_ptr++];
Cg = Nb & 0xfff;
if (Cg >= (4096 - 15 + 1)) {
x = Cd(Nb, OPbyte);
if ((Cg + x) > 4096) {
initial_mem_ptr = mem_ptr = this.mem_size;
for (y = 0; y < x; y++) {
mem8_loc = (Nb + y) >> 0;
phys_mem8[mem_ptr + y] = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
mem_ptr++;
}
}
} else {
initial_mem_ptr = mem_ptr = Nb ^ Lb;
OPbyte = phys_mem8[mem_ptr++];
}
OPbyte |= (CS_flags = init_CS_flags) & 0x0100;
Fd: for (; ; ) {
switch (OPbyte) {
case 0x66://Operand-size override prefix
if (CS_flags == init_CS_flags)
Cd(Nb, OPbyte);
if (init_CS_flags & 0x0100)
CS_flags &= ~0x0100;
else
CS_flags |= 0x0100;
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= (CS_flags & 0x0100);
break;
case 0x67://Address-size override prefix
if (CS_flags == init_CS_flags)
Cd(Nb, OPbyte);
if (init_CS_flags & 0x0080)
CS_flags &= ~0x0080;
else
CS_flags |= 0x0080;
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= (CS_flags & 0x0100);
break;
case 0xf0://LOCK Assert LOCK# Signal Prefix
if (CS_flags == init_CS_flags)
Cd(Nb, OPbyte);
CS_flags |= 0x0040;
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= (CS_flags & 0x0100);
break;
case 0xf2://REPNZ Repeat String Operation Prefix
if (CS_flags == init_CS_flags)
Cd(Nb, OPbyte);
CS_flags |= 0x0020;
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= (CS_flags & 0x0100);
break;
case 0xf3://REPZ Repeat String Operation Prefix
if (CS_flags == init_CS_flags)
Cd(Nb, OPbyte);
CS_flags |= 0x0010;
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= (CS_flags & 0x0100);
break;
case 0x26://ES ES segment override prefix
case 0x2e://CS CS segment override prefix
case 0x36://SS SS segment override prefix
case 0x3e://DS DS segment override prefix
if (CS_flags == init_CS_flags)
Cd(Nb, OPbyte);
CS_flags = (CS_flags & ~0x000f) | (((OPbyte >> 3) & 3) + 1);
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= (CS_flags & 0x0100);
break;
case 0x64://FS FS segment override prefix
case 0x65://GS GS segment override prefix
if (CS_flags == init_CS_flags)
Cd(Nb, OPbyte);
CS_flags = (CS_flags & ~0x000f) | ((OPbyte & 7) + 1);
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= (CS_flags & 0x0100);
break;
case 0xb0://B0+r MOV r8 imm8
case 0xb1:
case 0xb2:
case 0xb3:
case 0xb4:
case 0xb5:
case 0xb6:
case 0xb7:
x = phys_mem8[mem_ptr++]; //r8
OPbyte &= 7; //last bits
last_tlb_val = (OPbyte & 4) << 1;
regs[OPbyte & 3] = (regs[OPbyte & 3] & ~(0xff << last_tlb_val)) | (((x) & 0xff) << last_tlb_val);
break Fd;
case 0xb8://B8+r MOV r16/32 imm16/32
case 0xb9:
case 0xba:
case 0xbb:
case 0xbc:
case 0xbd:
case 0xbe:
case 0xbf:
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
regs[OPbyte & 7] = x;
break Fd;
case 0x88://MOV r/m8 r8
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
x = (regs[register_1 & 3] >> ((register_1 & 4) << 1));
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
last_tlb_val = (register_0 & 4) << 1;
regs[register_0 & 3] = (regs[register_0 & 3] & ~(0xff << last_tlb_val)) | (((x) & 0xff) << last_tlb_val);
} else {
mem8_loc = Pb(mem8);
{
last_tlb_val = _tlb_write_[mem8_loc >>> 12];
if (last_tlb_val == -1) {
__st8_mem8_write(x);
} else {
phys_mem8[mem8_loc ^ last_tlb_val] = x;
}
}
}
break Fd;
case 0x89://MOV r/m16/32 r16/32
mem8 = phys_mem8[mem_ptr++];
x = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
regs[mem8 & 7] = x;
} else {
mem8_loc = Pb(mem8);
{
last_tlb_val = _tlb_write_[mem8_loc >>> 12];
if ((last_tlb_val | mem8_loc) & 3) {
__st32_mem8_write(x);
} else {
phys_mem32[(mem8_loc ^ last_tlb_val) >> 2] = x;
}
}
}
break Fd;
case 0x8a://MOV r8 r/m8
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
register_1 = (mem8 >> 3) & 7;
last_tlb_val = (register_1 & 4) << 1;
regs[register_1 & 3] = (regs[register_1 & 3] & ~(0xff << last_tlb_val)) | (((x) & 0xff) << last_tlb_val);
break Fd;
case 0x8b://MOV r16/32 r/m16/32
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) | mem8_loc) & 3 ? __ld_32bits_mem8_read() : phys_mem32[(mem8_loc ^ last_tlb_val) >> 2]);
}
regs[(mem8 >> 3) & 7] = x;
break Fd;
case 0xa0://MOV AL moffs8
mem8_loc = Ub();
x = ld_8bits_mem8_read();
regs[0] = (regs[0] & -256) | x;
break Fd;
case 0xa1://MOV eAX moffs16/32
mem8_loc = Ub();
x = ld_32bits_mem8_read();
regs[0] = x;
break Fd;
case 0xa2://MOV moffs8 AL
mem8_loc = Ub();
st8_mem8_write(regs[0]);
break Fd;
case 0xa3://MOV moffs16/32 eAX
mem8_loc = Ub();
st32_mem8_write(regs[0]);
break Fd;
case 0xd7://XLAT AL m8 Table Look-up Translation
mem8_loc = (regs[3] + (regs[0] & 0xff)) >> 0;
if (CS_flags & 0x0080)
mem8_loc &= 0xffff;
register_1 = CS_flags & 0x000f;
if (register_1 == 0)
register_1 = 3;
else
register_1--;
mem8_loc = (mem8_loc + cpu.segs[register_1].base) >> 0;
x = ld_8bits_mem8_read();
set_either_two_bytes_of_reg_ABCD(0, x);
break Fd;
case 0xc6://MOV r/m8 imm8
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = phys_mem8[mem_ptr++];
set_either_two_bytes_of_reg_ABCD(mem8 & 7, x);
} else {
mem8_loc = Pb(mem8);
x = phys_mem8[mem_ptr++];
st8_mem8_write(x);
}
break Fd;
case 0xc7://MOV r/m16/32 imm16/32
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
regs[mem8 & 7] = x;
} else {
mem8_loc = Pb(mem8);
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
st32_mem8_write(x);
}
break Fd;
case 0x91://(90+r) XCHG r16/32 eAX Exchange Register/Memory with Register
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0x96:
case 0x97:
register_1 = OPbyte & 7;
x = regs[0];
regs[0] = regs[register_1];
regs[register_1] = x;
break Fd;
case 0x86://XCHG r8 r/m8 Exchange Register/Memory with Register
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
set_either_two_bytes_of_reg_ABCD(register_0, (regs[register_1 & 3] >> ((register_1 & 4) << 1)));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
st8_mem8_write((regs[register_1 & 3] >> ((register_1 & 4) << 1)));
}
set_either_two_bytes_of_reg_ABCD(register_1, x);
break Fd;
case 0x87://XCHG r16/32 r/m16/32 Exchange Register/Memory with Register
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = regs[register_0];
regs[register_0] = regs[register_1];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
st32_mem8_write(regs[register_1]);
}
regs[register_1] = x;
break Fd;
case 0x8e://MOV Sreg r/m16 Move
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if (register_1 >= 6 || register_1 == 1)
blow_up_errcode0(6);
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7] & 0xffff;
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
Ie(register_1, x);
break Fd;
case 0x8c://MOV m16 Sreg OR MOV r16/32 Sreg Move
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if (register_1 >= 6)
blow_up_errcode0(6);
x = cpu.segs[register_1].selector;
if ((mem8 >> 6) == 3) {
if ((((CS_flags >> 8) & 1) ^ 1)) {
regs[mem8 & 7] = x;
} else {
set_lower_two_bytes_of_register(mem8 & 7, x);
}
} else {
mem8_loc = Pb(mem8);
st16_mem8_write(x);
}
break Fd;
case 0xc4://LES ES r16/32 m16:16/32 Load Far Pointer
Uf(0);
break Fd;
case 0xc5://LDS DS r16/32 m16:16/32 Load Far Pointer
Uf(3);
break Fd;
case 0x00://ADD r/m8 r8 Add
case 0x08://OR r/m8 r8 Logical Inclusive OR
case 0x10://ADC r/m8 r8 Add with Carry
case 0x18://SBB r/m8 r8 Integer Subtraction with Borrow
case 0x20://AND r/m8 r8 Logical AND
case 0x28://SUB r/m8 r8 Subtract
case 0x30://XOR r/m8 r8 Logical Exclusive OR
case 0x38://CMP r/m8 r8 Compare Two Operands
mem8 = phys_mem8[mem_ptr++];
conditional_var = OPbyte >> 3;
register_1 = (mem8 >> 3) & 7;
y = (regs[register_1 & 3] >> ((register_1 & 4) << 1));
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, do_8bit_math(conditional_var, (regs[register_0 & 3] >> ((register_0 & 4) << 1)), y));
} else {
mem8_loc = Pb(mem8);
if (conditional_var != 7) {
x = ld_8bits_mem8_write();
x = do_8bit_math(conditional_var, x, y);
st8_mem8_write(x);
} else {
x = ld_8bits_mem8_read();
do_8bit_math(7, x, y);
}
}
break Fd;
case 0x01://ADD r/m16/32 r16/32 Add
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
{
_src = y;
_dst = regs[register_0] = (regs[register_0] + _src) >> 0;
_op = 2;
}
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
{
_src = y;
_dst = x = (x + _src) >> 0;
_op = 2;
}
st32_mem8_write(x);
}
break Fd;
case 0x09://OR r/m16/32 r16/32 Logical Inclusive OR
case 0x11://ADC r/m16/32 r16/32 Add with Carry
case 0x19://SBB r/m16/32 r16/32 Integer Subtraction with Borrow
case 0x21://AND r/m16/32 r16/32 Logical AND
case 0x29://SUB r/m16/32 r16/32 Subtract
case 0x31://XOR r/m16/32 r16/32 Logical Exclusive OR
mem8 = phys_mem8[mem_ptr++];
conditional_var = OPbyte >> 3;
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = do_32bit_math(conditional_var, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
x = do_32bit_math(conditional_var, x, y);
st32_mem8_write(x);
}
break Fd;
case 0x39://CMP r/m16/32 r16/32 Compare Two Operands
mem8 = phys_mem8[mem_ptr++];
conditional_var = OPbyte >> 3;
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
{
_src = y;
_dst = (regs[register_0] - _src) >> 0;
_op = 8;
}
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
{
_src = y;
_dst = (x - _src) >> 0;
_op = 8;
}
}
break Fd;
case 0x02://ADD r8 r/m8 Add
case 0x0a://OR r8 r/m8 Logical Inclusive OR
case 0x12://ADC r8 r/m8 Add with Carry
case 0x1a://SBB r8 r/m8 Integer Subtraction with Borrow
case 0x22://AND r8 r/m8 Logical AND
case 0x2a://SUB r8 r/m8 Subtract
case 0x32://XOR r8 r/m8 Logical Exclusive OR
case 0x3a://CMP r8 r/m8 Compare Two Operands
mem8 = phys_mem8[mem_ptr++];
conditional_var = OPbyte >> 3;
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
y = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
y = ld_8bits_mem8_read();
}
set_either_two_bytes_of_reg_ABCD(register_1, do_8bit_math(conditional_var, (regs[register_1 & 3] >> ((register_1 & 4) << 1)), y));
break Fd;
case 0x03:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_32bits_mem8_read();
}
{
_src = y;
_dst = regs[register_1] = (regs[register_1] + _src) >> 0;
_op = 2;
}
break Fd;
case 0x0b:
case 0x13:
case 0x1b:
case 0x23:
case 0x2b:
case 0x33:
mem8 = phys_mem8[mem_ptr++];
conditional_var = OPbyte >> 3;
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_32bits_mem8_read();
}
regs[register_1] = do_32bit_math(conditional_var, regs[register_1], y);
break Fd;
case 0x3b:
mem8 = phys_mem8[mem_ptr++];
conditional_var = OPbyte >> 3;
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_32bits_mem8_read();
}
{
_src = y;
_dst = (regs[register_1] - _src) >> 0;
_op = 8;
}
break Fd;
case 0x04:
case 0x0c:
case 0x14:
case 0x1c:
case 0x24:
case 0x2c:
case 0x34:
case 0x3c:
y = phys_mem8[mem_ptr++];
conditional_var = OPbyte >> 3;
set_either_two_bytes_of_reg_ABCD(0, do_8bit_math(conditional_var, regs[0] & 0xff, y));
break Fd;
case 0x05:
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
{
_src = y;
_dst = regs[0] = (regs[0] + _src) >> 0;
_op = 2;
}
break Fd;
case 0x0d:
case 0x15:
case 0x1d:
case 0x25:
case 0x2d:
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
conditional_var = OPbyte >> 3;
regs[0] = do_32bit_math(conditional_var, regs[0], y);
break Fd;
case 0x35:
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
{
_dst = regs[0] = regs[0] ^ y;
_op = 14;
}
break Fd;
case 0x3d:
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
{
_src = y;
_dst = (regs[0] - _src) >> 0;
_op = 8;
}
break Fd;
case 0x80:
case 0x82:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
y = phys_mem8[mem_ptr++];
set_either_two_bytes_of_reg_ABCD(register_0, do_8bit_math(conditional_var, (regs[register_0 & 3] >> ((register_0 & 4) << 1)), y));
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
if (conditional_var != 7) {
x = ld_8bits_mem8_write();
x = do_8bit_math(conditional_var, x, y);
st8_mem8_write(x);
} else {
x = ld_8bits_mem8_read();
do_8bit_math(7, x, y);
}
}
break Fd;
case 0x81:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if (conditional_var == 7) {
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
{
_src = y;
_dst = (x - _src) >> 0;
_op = 8;
}
} else {
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
regs[register_0] = do_32bit_math(conditional_var, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
x = ld_32bits_mem8_write();
x = do_32bit_math(conditional_var, x, y);
st32_mem8_write(x);
}
}
break Fd;
case 0x83:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if (conditional_var == 7) {
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
y = ((phys_mem8[mem_ptr++] << 24) >> 24);
{
_src = y;
_dst = (x - _src) >> 0;
_op = 8;
}
} else {
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
y = ((phys_mem8[mem_ptr++] << 24) >> 24);
regs[register_0] = do_32bit_math(conditional_var, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
y = ((phys_mem8[mem_ptr++] << 24) >> 24);
x = ld_32bits_mem8_write();
x = do_32bit_math(conditional_var, x, y);
st32_mem8_write(x);
}
}
break Fd;
case 0x40:
case 0x41:
case 0x42:
case 0x43:
case 0x44:
case 0x45:
case 0x46:
case 0x47:
register_1 = OPbyte & 7;
{
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
regs[register_1] = _dst = (regs[register_1] + 1) >> 0;
_op = 27;
}
break Fd;
case 0x48:
case 0x49:
case 0x4a:
case 0x4b:
case 0x4c:
case 0x4d:
case 0x4e:
case 0x4f:
register_1 = OPbyte & 7;
{
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
regs[register_1] = _dst = (regs[register_1] - 1) >> 0;
_op = 30;
}
break Fd;
case 0x6b:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_32bits_mem8_read();
}
z = ((phys_mem8[mem_ptr++] << 24) >> 24);
regs[register_1] = Wc(y, z);
break Fd;
case 0x69:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_32bits_mem8_read();
}
{
z = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
regs[register_1] = Wc(y, z);
break Fd;
case 0x84:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
register_1 = (mem8 >> 3) & 7;
y = (regs[register_1 & 3] >> ((register_1 & 4) << 1));
{
_dst = (((x & y) << 24) >> 24);
_op = 12;
}
break Fd;
case 0x85:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
y = regs[(mem8 >> 3) & 7];
{
_dst = x & y;
_op = 14;
}
break Fd;
case 0xa8:
y = phys_mem8[mem_ptr++];
{
_dst = (((regs[0] & y) << 24) >> 24);
_op = 12;
}
break Fd;
case 0xa9:
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
{
_dst = regs[0] & y;
_op = 14;
}
break Fd;
case 0xf6:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 0:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
y = phys_mem8[mem_ptr++];
{
_dst = (((x & y) << 24) >> 24);
_op = 12;
}
break;
case 2:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, ~(regs[register_0 & 3] >> ((register_0 & 4) << 1)));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
x = ~x;
st8_mem8_write(x);
}
break;
case 3:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, do_8bit_math(5, 0, (regs[register_0 & 3] >> ((register_0 & 4) << 1))));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
x = do_8bit_math(5, 0, x);
st8_mem8_write(x);
}
break;
case 4:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
set_lower_two_bytes_of_register(0, Oc(regs[0], x));
break;
case 5:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
set_lower_two_bytes_of_register(0, Pc(regs[0], x));
break;
case 6:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
Cc(x);
break;
case 7:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
Ec(x);
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0xf7:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 0:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
{
y = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
{
_dst = x & y;
_op = 14;
}
break;
case 2:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = ~regs[register_0];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
x = ~x;
st32_mem8_write(x);
}
break;
case 3:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = do_32bit_math(5, 0, regs[register_0]);
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
x = do_32bit_math(5, 0, x);
st32_mem8_write(x);
}
break;
case 4:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
regs[0] = Vc(regs[0], x);
regs[2] = v;
break;
case 5:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
regs[0] = Wc(regs[0], x);
regs[2] = v;
break;
case 6:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
regs[0] = Hc(regs[2], regs[0], x);
regs[2] = v;
break;
case 7:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
regs[0] = Lc(regs[2], regs[0], x);
regs[2] = v;
break;
default:
blow_up_errcode0(6);
}
break Fd;
//Rotate and Shift ops
/*
C0 0 01+ ROL r/m8 imm8 o..szapc o..szapc o....... Rotate
C0 1 01+ ROR r/m8 imm8 o..szapc o..szapc o....... Rotate
C0 2 01+ RCL r/m8 imm8 .......c o..szapc o..szapc o....... Rotate
C0 3 01+ RCR r/m8 imm8 .......c o..szapc o..szapc o....... Rotate
C0 4 01+ SHL r/m8 imm8 o..szapc o..sz.pc o....a.c Shift
SAL r/m8 imm8
C0 5 01+ SHR r/m8 imm8 o..szapc o..sz.pc o....a.c Shift
C0 6 01+ U2 SAL r/m8 imm8 o..szapc o..sz.pc o....a.c Shift
SHL r/m8 imm8
C0 7 01+ SAR r/m8 imm8 o..szapc o..sz.pc o....a.. Shift
*/
case 0xc0:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = phys_mem8[mem_ptr++];
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, shift8(conditional_var, (regs[register_0 & 3] >> ((register_0 & 4) << 1)), y));
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
x = ld_8bits_mem8_write();
x = shift8(conditional_var, x, y);
st8_mem8_write(x);
}
break Fd;
/*
C1 0 01+ ROL r/m16/32 imm8 o..szapc o..szapc o....... Rotate
C1 1 01+ ROR r/m16/32 imm8 o..szapc o..szapc o....... Rotate
C1 2 01+ RCL r/m16/32 imm8 .......c o..szapc o..szapc o....... Rotate
C1 3 01+ RCR r/m16/32 imm8 .......c o..szapc o..szapc o....... Rotate
C1 4 01+ SHL r/m16/32 imm8 o..szapc o..sz.pc o....a.c Shift
SAL r/m16/32 imm8
C1 5 01+ SHR r/m16/32 imm8 o..szapc o..sz.pc o....a.c Shift
C1 6 01+ U2 SAL r/m16/32 imm8 o..szapc o..sz.pc o....a.c Shift
SHL r/m16/32 imm8
C1 7 01+ SAR r/m16/32 imm8 o..szapc o..sz.pc o....a.. Shift
*/
case 0xc1:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = phys_mem8[mem_ptr++];
register_0 = mem8 & 7;
regs[register_0] = nc(conditional_var, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
x = ld_32bits_mem8_write();
x = nc(conditional_var, x, y);
st32_mem8_write(x);
}
break Fd;
/*
D0 0 ROL r/m8 1 o..szapc o..szapc Rotate
D0 1 ROR r/m8 1 o..szapc o..szapc Rotate
D0 2 RCL r/m8 1 .......c o..szapc o..szapc Rotate
D0 3 RCR r/m8 1 .......c o..szapc o..szapc Rotate
D0 4 SHL r/m8 1 o..szapc o..sz.pc .....a.. Shift
SAL r/m8 1
D0 5 SHR r/m8 1 o..szapc o..sz.pc .....a.. Shift
D0 6 U2 SAL r/m8 1 o..szapc o..sz.pc .....a.. Shift
SHL r/m8 1
D0 7 SAR r/m8 1 o..szapc o..sz.pc .....a.. Shift
*/
case 0xd0:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, shift8(conditional_var, (regs[register_0 & 3] >> ((register_0 & 4) << 1)), 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
x = shift8(conditional_var, x, 1);
st8_mem8_write(x);
}
break Fd;
/*
D1 0 ROL r/m16/32 1 o..szapc o..szapc Rotate
D1 1 ROR r/m16/32 1 o..szapc o..szapc Rotate
D1 2 RCL r/m16/32 1 .......c o..szapc o..szapc Rotate
D1 3 RCR r/m16/32 1 .......c o..szapc o..szapc Rotate
D1 4 SHL r/m16/32 1 o..szapc o..sz.pc .....a.. Shift
SAL r/m16/32 1
D1 5 SHR r/m16/32 1 o..szapc o..sz.pc .....a.. Shift
D1 6 U2 SAL r/m16/32 1 o..szapc o..sz.pc .....a.. Shift
SHL r/m16/32 1
D1 7 SAR r/m16/32 1 o..szapc o..sz.pc .....a.. Shift
*/
case 0xd1:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = nc(conditional_var, regs[register_0], 1);
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
x = nc(conditional_var, x, 1);
st32_mem8_write(x);
}
break Fd;
/*
D2 0 ROL r/m8 CL o..szapc o..szapc o....... Rotate
D2 1 ROR r/m8 CL o..szapc o..szapc o....... Rotate
D2 2 RCL r/m8 CL .......c o..szapc o..szapc o....... Rotate
D2 3 RCR r/m8 CL .......c o..szapc o..szapc o....... Rotate
D2 4 SHL r/m8 CL o..szapc o..sz.pc o....a.c Shift
SAL r/m8 CL
D2 5 SHR r/m8 CL o..szapc o..sz.pc o....a.c Shift
D2 6 U2 SAL r/m8 CL o..szapc o..sz.pc o....a.c Shift
SHL r/m8 CL
D2 7 SAR r/m8 CL o..szapc o..sz.pc o....a.. Shift
*/
case 0xd2:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
y = regs[1] & 0xff;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, shift8(conditional_var, (regs[register_0 & 3] >> ((register_0 & 4) << 1)), y));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
x = shift8(conditional_var, x, y);
st8_mem8_write(x);
}
break Fd;
/*
D3 0 ROL r/m16/32 CL o..szapc o..szapc o....... Rotate
D3 1 ROR r/m16/32 CL o..szapc o..szapc o....... Rotate
D3 2 RCL r/m16/32 CL .......c o..szapc o..szapc o....... Rotate
D3 3 RCR r/m16/32 CL .......c o..szapc o..szapc o....... Rotate
D3 4 SHL r/m16/32 CL o..szapc o..sz.pc o....a.c Shift
SAL r/m16/32 CL
D3 5 SHR r/m16/32 CL o..szapc o..sz.pc o....a.c Shift
D3 6 U2 SAL r/m16/32 CL o..szapc o..sz.pc o....a.c Shift
SHL r/m16/32 CL
D3 7 SAR r/m16/32 CL o..szapc o..sz.pc .....a.. Shift
*/
case 0xd3:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
y = regs[1] & 0xff;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = nc(conditional_var, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
x = nc(conditional_var, x, y);
st32_mem8_write(x);
}
break Fd;
//98 CBW AX AL Convert Byte to Word
case 0x98:
regs[0] = (regs[0] << 16) >> 16;
break Fd;
//99 CWD DX AX Convert Word to Doubleword
case 0x99:
regs[2] = regs[0] >> 31;
break Fd;
//50+r PUSH r16/32 Push Word, Doubleword or Quadword Onto the Stack
case 0x50:
case 0x51:
case 0x52:
case 0x53:
case 0x54:
case 0x55:
case 0x56:
case 0x57:
x = regs[OPbyte & 7];
if (FS_usage_flag) {
mem8_loc = (regs[4] - 4) >> 0;
{
last_tlb_val = _tlb_write_[mem8_loc >>> 12];
if ((last_tlb_val | mem8_loc) & 3) {
__st32_mem8_write(x);
} else {
phys_mem32[(mem8_loc ^ last_tlb_val) >> 2] = x;
}
}
regs[4] = mem8_loc;
} else {
xd(x);
}
break Fd;
//58+r POP r16/32 Pop a Value from the Stack
case 0x58:
case 0x59:
case 0x5a:
case 0x5b:
case 0x5c:
case 0x5d:
case 0x5e:
case 0x5f:
if (FS_usage_flag) {
mem8_loc = regs[4];
x = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) | mem8_loc) & 3 ? __ld_32bits_mem8_read() : phys_mem32[(mem8_loc ^ last_tlb_val) >> 2]);
regs[4] = (mem8_loc + 4) >> 0;
} else {
x = Ad();
Bd();
}
regs[OPbyte & 7] = x;
break Fd;
//60 01+ PUSHA AX CX DX ... Push All General-Purpose Registers
case 0x60:
Kf();
break Fd;
//61 01+ POPA DI SI BP ... Pop All General-Purpose Registers
case 0x61:
Mf();
break Fd;
//8F 0 POP r/m16/32 Pop a Value from the Stack
case 0x8f:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = Ad();
Bd();
regs[mem8 & 7] = x;
} else {
x = Ad();
y = regs[4];
Bd();
z = regs[4];
mem8_loc = Pb(mem8);
regs[4] = y;
st32_mem8_write(x);
regs[4] = z;
}
break Fd;
//68 01+ PUSH imm16/32 Push Word, Doubleword or Quadword Onto the Stack
case 0x68:
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
if (FS_usage_flag) {
mem8_loc = (regs[4] - 4) >> 0;
st32_mem8_write(x);
regs[4] = mem8_loc;
} else {
xd(x);
}
break Fd;
//6A 01+ PUSH imm8 Push Word, Doubleword or Quadword Onto the Stack
case 0x6a:
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
if (FS_usage_flag) {
mem8_loc = (regs[4] - 4) >> 0;
st32_mem8_write(x);
regs[4] = mem8_loc;
} else {
xd(x);
}
break Fd;
//C8 01+ ENTER eBP imm16 imm8 Make Stack Frame for Procedure Parameters
case 0xc8:
Tf();
break Fd;
//C9 01+ LEAVE eBP High Level Procedure Exit
case 0xc9:
if (FS_usage_flag) {
mem8_loc = regs[5];
x = ld_32bits_mem8_read();
regs[5] = x;
regs[4] = (mem8_loc + 4) >> 0;
} else {
Of();
}
break Fd;
/*
9C PUSHF Flags Push FLAGS Register onto the Stack
9C 03+ PUSHFD EFlags Push eFLAGS Register onto the Stack
*/
case 0x9c:
iopl = (cpu.eflags >> 12) & 3;
if ((cpu.eflags & 0x00020000) && iopl != 3)
blow_up_errcode0(13);
x = id() & ~(0x00020000 | 0x00010000);
if ((((CS_flags >> 8) & 1) ^ 1)) {
xd(x);
} else {
vd(x);
}
break Fd;
/*
9D POPF Flags Pop Stack into FLAGS Register
9D 03+ POPFD EFlags Pop Stack into eFLAGS Register
*/
case 0x9d:
iopl = (cpu.eflags >> 12) & 3;
if ((cpu.eflags & 0x00020000) && iopl != 3)
blow_up_errcode0(13);
if ((((CS_flags >> 8) & 1) ^ 1)) {
x = Ad();
Bd();
y = -1;
} else {
x = yd();
zd();
y = 0xffff;
}
z = (0x00000100 | 0x00040000 | 0x00200000 | 0x00004000);
if (cpu.cpl == 0) {
z |= 0x00000200 | 0x00003000;
} else {
if (cpu.cpl <= iopl)
z |= 0x00000200;
}
kd(x, z & y);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x06:
case 0x0e:
case 0x16:
case 0x1e:
xd(cpu.segs[OPbyte >> 3].selector);
break Fd;
case 0x07:
case 0x17:
case 0x1f:
Ie(OPbyte >> 3, Ad() & 0xffff);
Bd();
break Fd;
case 0x8d:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3)
blow_up_errcode0(6);
CS_flags = (CS_flags & ~0x000f) | (6 + 1);
regs[(mem8 >> 3) & 7] = Pb(mem8);
break Fd;
case 0xfe:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 0:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, hc((regs[register_0 & 3] >> ((register_0 & 4) << 1))));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
x = hc(x);
st8_mem8_write(x);
}
break;
case 1:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_either_two_bytes_of_reg_ABCD(register_0, ic((regs[register_0 & 3] >> ((register_0 & 4) << 1))));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
x = ic(x);
st8_mem8_write(x);
}
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0xff:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 0:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
{
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
regs[register_0] = _dst = (regs[register_0] + 1) >> 0;
_op = 27;
}
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
{
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
x = _dst = (x + 1) >> 0;
_op = 27;
}
st32_mem8_write(x);
}
break;
case 1:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
{
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
regs[register_0] = _dst = (regs[register_0] - 1) >> 0;
_op = 30;
}
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
{
if (_op < 25) {
_op2 = _op;
_dst2 = _dst;
}
x = _dst = (x - 1) >> 0;
_op = 30;
}
st32_mem8_write(x);
}
break;
case 2:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
y = (eip + mem_ptr - initial_mem_ptr);
if (FS_usage_flag) {
mem8_loc = (regs[4] - 4) >> 0;
st32_mem8_write(y);
regs[4] = mem8_loc;
} else {
xd(y);
}
eip = x, mem_ptr = initial_mem_ptr = 0;
break;
case 4:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
eip = x, mem_ptr = initial_mem_ptr = 0;
break;
case 6:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
if (FS_usage_flag) {
mem8_loc = (regs[4] - 4) >> 0;
st32_mem8_write(x);
regs[4] = mem8_loc;
} else {
xd(x);
}
break;
case 3:
case 5:
if ((mem8 >> 6) == 3)
blow_up_errcode0(6);
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
mem8_loc = (mem8_loc + 4) >> 0;
y = ld_16bits_mem8_read();
if (conditional_var == 3)
Ze(1, y, x, (eip + mem_ptr - initial_mem_ptr));
else
Oe(y, x);
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0xeb:
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
break Fd;
case 0xe9:
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
mem_ptr = (mem_ptr + x) >> 0;
break Fd;
case 0xea:
if ((((CS_flags >> 8) & 1) ^ 1)) {
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
} else {
x = Ob();
}
y = Ob();
Oe(y, x);
break Fd;
case 0x70:
if (check_overflow()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x71:
if (!check_overflow()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x72:
if (check_carry()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x73:
if (!check_carry()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x74:
if ((_dst == 0)) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x75:
if (!(_dst == 0)) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x76:
if (ad()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x77:
if (!ad()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x78:
if ((_op == 24 ? ((_src >> 7) & 1) : (_dst < 0))) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x79:
if (!(_op == 24 ? ((_src >> 7) & 1) : (_dst < 0))) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x7a:
if (check_parity()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x7b:
if (!check_parity()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x7c:
if (cd()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x7d:
if (!cd()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x7e:
if (dd()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0x7f:
if (!dd()) {
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
mem_ptr = (mem_ptr + x) >> 0;
} else {
mem_ptr = (mem_ptr + 1) >> 0;
}
break Fd;
case 0xe0:
case 0xe1:
case 0xe2:
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
if (CS_flags & 0x0080)
conditional_var = 0xffff;
else
conditional_var = -1;
y = (regs[1] - 1) & conditional_var;
regs[1] = (regs[1] & ~conditional_var) | y;
OPbyte &= 3;
if (OPbyte == 0)
z = !(_dst == 0);
else if (OPbyte == 1)
z = (_dst == 0);
else
z = 1;
if (y && z) {
if (CS_flags & 0x0100) {
eip = (eip + mem_ptr - initial_mem_ptr + x) & 0xffff, mem_ptr = initial_mem_ptr = 0;
} else {
mem_ptr = (mem_ptr + x) >> 0;
}
}
break Fd;
case 0xe3:
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
if (CS_flags & 0x0080)
conditional_var = 0xffff;
else
conditional_var = -1;
if ((regs[1] & conditional_var) == 0) {
if (CS_flags & 0x0100) {
eip = (eip + mem_ptr - initial_mem_ptr + x) & 0xffff, mem_ptr = initial_mem_ptr = 0;
} else {
mem_ptr = (mem_ptr + x) >> 0;
}
}
break Fd;
case 0xc2:
y = (Ob() << 16) >> 16;
x = Ad();
regs[4] = (regs[4] & ~SS_mask) | ((regs[4] + 4 + y) & SS_mask);
eip = x, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0xc3:
if (FS_usage_flag) {
mem8_loc = regs[4];
x = ld_32bits_mem8_read();
regs[4] = (regs[4] + 4) >> 0;
} else {
x = Ad();
Bd();
}
eip = x, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0xe8:
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
y = (eip + mem_ptr - initial_mem_ptr);
if (FS_usage_flag) {
mem8_loc = (regs[4] - 4) >> 0;
st32_mem8_write(y);
regs[4] = mem8_loc;
} else {
xd(y);
}
mem_ptr = (mem_ptr + x) >> 0;
break Fd;
case 0x9a:
z = (((CS_flags >> 8) & 1) ^ 1);
if (z) {
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
} else {
x = Ob();
}
y = Ob();
Ze(z, y, x, (eip + mem_ptr - initial_mem_ptr));
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xca:
y = (Ob() << 16) >> 16;
nf((((CS_flags >> 8) & 1) ^ 1), y);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xcb:
nf((((CS_flags >> 8) & 1) ^ 1), 0);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xcf:
mf((((CS_flags >> 8) & 1) ^ 1));
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x90:
break Fd;
case 0xcc:
y = (eip + mem_ptr - initial_mem_ptr);
Ae(3, 1, 0, y, 0);
break Fd;
case 0xcd:
x = phys_mem8[mem_ptr++];
if ((cpu.eflags & 0x00020000) && ((cpu.eflags >> 12) & 3) != 3)
blow_up_errcode0(13);
y = (eip + mem_ptr - initial_mem_ptr);
Ae(x, 1, 0, y, 0);
break Fd;
case 0xce:
if (check_overflow()) {
y = (eip + mem_ptr - initial_mem_ptr);
Ae(4, 1, 0, y, 0);
}
break Fd;
//62 r 01+ f BOUND r16/32 m16/32&16/32 eFlags ..i..... ..i..... ..i..... Check Array Index Against Bounds
case 0x62:
Hf();
break Fd;
// F5 CMC .......c .......c .......c Complement Carry Flag
case 0xf5:
_src = hd() ^ 0x0001;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
break Fd;
//F8 CLC .......c .......c .......c Clear Carry Flag
case 0xf8:
_src = hd() & ~0x0001;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
break Fd;
//F9 STC .......c .......c .......C Set Carry Flag
case 0xf9:
_src = hd() | 0x0001;
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
break Fd;
//FC CLD .d...... .d...... .d...... Clear Direction Flag
case 0xfc:
cpu.df = 1;
break Fd;
//FD STD .d...... .d...... .D...... Set Direction Flag
case 0xfd:
cpu.df = -1;
break Fd;
case 0xfa:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
cpu.eflags &= ~0x00000200;
break Fd;
case 0xfb:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
cpu.eflags |= 0x00000200;
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x9e:
_src = ((regs[0] >> 8) & (0x0080 | 0x0040 | 0x0010 | 0x0004 | 0x0001)) | (check_overflow() << 11);
_dst = ((_src >> 6) & 1) ^ 1;
_op = 24;
break Fd;
case 0x9f:
x = id();
set_either_two_bytes_of_reg_ABCD(4, x);
break Fd;
case 0xf4:
if (cpu.cpl != 0)
blow_up_errcode0(13);
cpu.halted = 1;
exit_code = 257;
break Bg;
//A4 MOVS m8 m8 .d...... Move Data from String to String
//MOVSB m8 m8
case 0xa4:
dg();
break Fd;
//A5 MOVS m16 m16 .d...... Move Data from String to String
//MOVSW m16 m16
case 0xa5:
sg();
break Fd;
//AA STOS m8 AL .d...... Store String
//STOSB m8 AL
case 0xaa:
fg();
break Fd;
case 0xab:
xg();
break Fd;
case 0xa6:
gg();
break Fd;
case 0xa7:
yg();
break Fd;
case 0xac:
hg();
break Fd;
case 0xad:
zg();
break Fd;
case 0xae:
ig();
break Fd;
case 0xaf:
Ag();
break Fd;
case 0x6c:
Wf();
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x6d:
qg();
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x6e:
bg();
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x6f:
rg();
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xd8:
case 0xd9:
case 0xda:
case 0xdb:
case 0xdc:
case 0xdd:
case 0xde:
case 0xdf:
if (cpu.cr0 & ((1 << 2) | (1 << 3))) {
blow_up_errcode0(7);
}
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
register_0 = mem8 & 7;
conditional_var = ((OPbyte & 7) << 3) | ((mem8 >> 3) & 7);
set_lower_two_bytes_of_register(0, 0xffff);
if ((mem8 >> 6) == 3) {
} else {
mem8_loc = Pb(mem8);
}
break Fd;
case 0x9b:
break Fd;
case 0xe4:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
x = phys_mem8[mem_ptr++];
set_either_two_bytes_of_reg_ABCD(0, cpu.ld8_port(x));
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xe5:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
x = phys_mem8[mem_ptr++];
regs[0] = cpu.ld32_port(x);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xe6:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
x = phys_mem8[mem_ptr++];
cpu.st8_port(x, regs[0] & 0xff);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xe7:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
x = phys_mem8[mem_ptr++];
cpu.st32_port(x, regs[0]);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xec:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
set_either_two_bytes_of_reg_ABCD(0, cpu.ld8_port(regs[2] & 0xffff));
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xed:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
regs[0] = cpu.ld32_port(regs[2] & 0xffff);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xee:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
cpu.st8_port(regs[2] & 0xffff, regs[0] & 0xff);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0xef:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
cpu.st32_port(regs[2] & 0xffff, regs[0]);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x27:
Df();
break Fd;
case 0x2f:
Ff();
break Fd;
case 0x37:
zf();
break Fd;
case 0x3f:
Cf();
break Fd;
case 0xd4:
x = phys_mem8[mem_ptr++];
vf(x);
break Fd;
case 0xd5:
x = phys_mem8[mem_ptr++];
yf(x);
break Fd;
case 0x63:
tf();
break Fd;
case 0xd6:
case 0xf1:
blow_up_errcode0(6);
break;
/*
TWO BYTE CODE INSTRUCTIONS BEGIN WITH 0F : 0F xx
=====================================================================================================
*/
case 0x0f:
OPbyte = phys_mem8[mem_ptr++];
switch (OPbyte) {
/*
0F 80 03+ JO rel16/32 o....... Jump short if overflow (OF=1)
0F 81 03+ JNO rel16/32 o....... Jump short if not overflow (OF=0)
0F 82 03+ JB rel16/32 .......c Jump short if below/not above or equal/carry (CF=1)
JNAE rel16/32
JC rel16/32
0F 83 03+ JNB rel16/32 .......c Jump short if not below/above or equal/not carry (CF=0)
JAE rel16/32
JNC rel16/32
0F 84 03+ JZ rel16/32 ....z... Jump short if zero/equal (ZF=0)
JE rel16/32
0F 85 03+ JNZ rel16/32 ....z... Jump short if not zero/not equal (ZF=1)
JNE rel16/32
0F 86 03+ JBE rel16/32 ....z..c Jump short if below or equal/not above (CF=1 AND ZF=1)
JNA rel16/32
0F 87 03+ JNBE rel16/32 ....z..c Jump short if not below or equal/above (CF=0 AND ZF=0)
JA rel16/32
0F 88 03+ JS rel16/32 ...s.... Jump short if sign (SF=1)
0F 89 03+ JNS rel16/32 ...s.... Jump short if not sign (SF=0)
0F 8A 03+ JP rel16/32 ......p. Jump short if parity/parity even (PF=1)
JPE rel16/32
0F 8B 03+ JNP rel16/32 ......p. Jump short if not parity/parity odd
JPO rel16/32
0F 8C 03+ JL rel16/32 o..s.... Jump short if less/not greater (SF!=OF)
JNGE rel16/32
0F 8D 03+ JNL rel16/32 o..s.... Jump short if not less/greater or equal (SF=OF)
JGE rel16/32
0F 8E 03+ JLE rel16/32 o..sz... Jump short if less or equal/not greater ((ZF=1) OR (SF!=OF))
JNG rel16/32
0F 8F 03+ JNLE rel16/32 o..sz... Jump short if not less nor equal/greater ((ZF=0) AND (SF=OF))
*/
case 0x80:
case 0x81:
case 0x82:
case 0x83:
case 0x84:
case 0x85:
case 0x86:
case 0x87:
case 0x88:
case 0x89:
case 0x8a:
case 0x8b:
case 0x8c:
case 0x8d:
case 0x8e:
case 0x8f:
{
x = phys_mem8[mem_ptr] | (phys_mem8[mem_ptr + 1] << 8) | (phys_mem8[mem_ptr + 2] << 16) | (phys_mem8[mem_ptr + 3] << 24);
mem_ptr += 4;
}
if (check_status_bits_for_jump(OPbyte & 0xf))
mem_ptr = (mem_ptr + x) >> 0;
break Fd;
case 0x90:
case 0x91:
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0x96:
case 0x97:
case 0x98:
case 0x99:
case 0x9a:
case 0x9b:
case 0x9c:
case 0x9d:
case 0x9e:
case 0x9f:
mem8 = phys_mem8[mem_ptr++];
x = check_status_bits_for_jump(OPbyte & 0xf);
if ((mem8 >> 6) == 3) {
set_either_two_bytes_of_reg_ABCD(mem8 & 7, x);
} else {
mem8_loc = Pb(mem8);
st8_mem8_write(x);
}
break Fd;
case 0x40:
case 0x41:
case 0x42:
case 0x43:
case 0x44:
case 0x45:
case 0x46:
case 0x47:
case 0x48:
case 0x49:
case 0x4a:
case 0x4b:
case 0x4c:
case 0x4d:
case 0x4e:
case 0x4f:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_read();
}
if (check_status_bits_for_jump(OPbyte & 0xf))
regs[(mem8 >> 3) & 7] = x;
break Fd;
case 0xb6:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1)) & 0xff;
} else {
mem8_loc = Pb(mem8);
x = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
regs[register_1] = x;
break Fd;
case 0xb7:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7] & 0xffff;
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
regs[register_1] = x;
break Fd;
case 0xbe:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = (((last_tlb_val = _tlb_read_[mem8_loc >>> 12]) == -1) ? __ld_8bits_mem8_read() : phys_mem8[mem8_loc ^ last_tlb_val]);
}
regs[register_1] = (((x) << 24) >> 24);
break Fd;
case 0xbf:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
regs[register_1] = (((x) << 16) >> 16);
break Fd;
case 0x00:
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000))
blow_up_errcode0(6);
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 0:
case 1:
if (conditional_var == 0)
x = cpu.ldt.selector;
else
x = cpu.tr.selector;
if ((mem8 >> 6) == 3) {
set_lower_two_bytes_of_register(mem8 & 7, x);
} else {
mem8_loc = Pb(mem8);
st16_mem8_write(x);
}
break;
case 2:
case 3:
if (cpu.cpl != 0)
blow_up_errcode0(13);
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7] & 0xffff;
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
if (conditional_var == 2)
Ce(x);
else
Ee(x);
break;
case 4:
case 5:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7] & 0xffff;
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
sf(x, conditional_var & 1);
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0x01:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 2:
case 3:
if ((mem8 >> 6) == 3)
blow_up_errcode0(6);
if (this.cpl != 0)
blow_up_errcode0(13);
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
mem8_loc += 2;
y = ld_32bits_mem8_read();
if (conditional_var == 2) {
this.gdt.base = y;
this.gdt.limit = x;
} else {
this.idt.base = y;
this.idt.limit = x;
}
break;
case 7:
if (this.cpl != 0)
blow_up_errcode0(13);
if ((mem8 >> 6) == 3)
blow_up_errcode0(6);
mem8_loc = Pb(mem8);
cpu.tlb_flush_page(mem8_loc & -4096);
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0x02:
case 0x03:
qf((((CS_flags >> 8) & 1) ^ 1), OPbyte & 1);
break Fd;
case 0x20:
if (cpu.cpl != 0)
blow_up_errcode0(13);
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) != 3)
blow_up_errcode0(6);
register_1 = (mem8 >> 3) & 7;
switch (register_1) {
case 0:
x = cpu.cr0;
break;
case 2:
x = cpu.cr2;
break;
case 3:
x = cpu.cr3;
break;
case 4:
x = cpu.cr4;
break;
default:
blow_up_errcode0(6);
}
regs[mem8 & 7] = x;
break Fd;
// 0F 22 r 03+ 0 MOV CRn r32 o..szapc o..szapc Move to/from Control Registers
case 0x22:
if (cpu.cpl != 0)
blow_up_errcode0(13);
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) != 3)
blow_up_errcode0(6);
register_1 = (mem8 >> 3) & 7;
x = regs[mem8 & 7];
switch (register_1) {
case 0:
set_CR0(x);
break;
case 2:
cpu.cr2 = x;
break;
case 3:
set_CR3(x);
break;
case 4:
set_CR4(x);
break;
default:
blow_up_errcode0(6);
}
break Fd;
// 0F 06 02+ 0 CLTS CR0 Clear Task-Switched Flag in CR0
case 0x06:
if (cpu.cpl != 0)
blow_up_errcode0(13);
set_CR0(cpu.cr0 & ~(1 << 3)); //Clear Task-Switched Flag in CR0
break Fd;
case 0x23:
if (cpu.cpl != 0)
blow_up_errcode0(13);
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) != 3)
blow_up_errcode0(6);
register_1 = (mem8 >> 3) & 7;
x = regs[mem8 & 7];
if (register_1 == 4 || register_1 == 5)
blow_up_errcode0(6);
break Fd;
case 0xb2:
case 0xb4:
case 0xb5:
Uf(OPbyte & 7);
break Fd;
case 0xa2:
uf();
break Fd;
case 0xa4:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
z = phys_mem8[mem_ptr++];
register_0 = mem8 & 7;
regs[register_0] = rc(regs[register_0], y, z);
} else {
mem8_loc = Pb(mem8);
z = phys_mem8[mem_ptr++];
x = ld_32bits_mem8_write();
x = rc(x, y, z);
st32_mem8_write(x);
}
break Fd;
case 0xa5:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
z = regs[1];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = rc(regs[register_0], y, z);
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
x = rc(x, y, z);
st32_mem8_write(x);
}
break Fd;
case 0xac:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
z = phys_mem8[mem_ptr++];
register_0 = mem8 & 7;
regs[register_0] = sc(regs[register_0], y, z);
} else {
mem8_loc = Pb(mem8);
z = phys_mem8[mem_ptr++];
x = ld_32bits_mem8_write();
x = sc(x, y, z);
st32_mem8_write(x);
}
break Fd;
case 0xad:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
z = regs[1];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = sc(regs[register_0], y, z);
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
x = sc(x, y, z);
st32_mem8_write(x);
}
break Fd;
case 0xba:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 4:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
y = phys_mem8[mem_ptr++];
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
x = ld_32bits_mem8_read();
}
uc(x, y);
break;
case 5:
case 6:
case 7:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
y = phys_mem8[mem_ptr++];
regs[register_0] = xc(conditional_var & 3, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
x = ld_32bits_mem8_write();
x = xc(conditional_var & 3, x, y);
st32_mem8_write(x);
}
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0xa3:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
mem8_loc = (mem8_loc + ((y >> 5) << 2)) >> 0;
x = ld_32bits_mem8_read();
}
uc(x, y);
break Fd;
case 0xab:
case 0xb3:
case 0xbb:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
conditional_var = (OPbyte >> 3) & 3;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
regs[register_0] = xc(conditional_var, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
mem8_loc = (mem8_loc + ((y >> 5) << 2)) >> 0;
x = ld_32bits_mem8_write();
x = xc(conditional_var, x, y);
st32_mem8_write(x);
}
break Fd;
case 0xbc:
case 0xbd:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_32bits_mem8_read();
}
if (OPbyte & 1)
regs[register_1] = Bc(regs[register_1], y);
else
regs[register_1] = zc(regs[register_1], y);
break Fd;
case 0xaf:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_32bits_mem8_read();
}
regs[register_1] = Wc(regs[register_1], y);
break Fd;
case 0x31:
if ((cpu.cr4 & (1 << 2)) && cpu.cpl != 0)
blow_up_errcode0(13);
x = current_cycle_count();
regs[0] = x >>> 0;
regs[2] = (x / 0x100000000) >>> 0;
break Fd;
case 0xc0:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
y = do_8bit_math(0, x, (regs[register_1 & 3] >> ((register_1 & 4) << 1)));
set_either_two_bytes_of_reg_ABCD(register_1, x);
set_either_two_bytes_of_reg_ABCD(register_0, y);
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
y = do_8bit_math(0, x, (regs[register_1 & 3] >> ((register_1 & 4) << 1)));
st8_mem8_write(y);
set_either_two_bytes_of_reg_ABCD(register_1, x);
}
break Fd;
case 0xc1:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = regs[register_0];
y = do_32bit_math(0, x, regs[register_1]);
regs[register_1] = x;
regs[register_0] = y;
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
y = do_32bit_math(0, x, regs[register_1]);
st32_mem8_write(y);
regs[register_1] = x;
}
break Fd;
case 0xb0:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
y = do_8bit_math(5, regs[0], x);
if (y == 0) {
set_either_two_bytes_of_reg_ABCD(register_0, (regs[register_1 & 3] >> ((register_1 & 4) << 1)));
} else {
set_either_two_bytes_of_reg_ABCD(0, x);
}
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_write();
y = do_8bit_math(5, regs[0], x);
if (y == 0) {
st8_mem8_write((regs[register_1 & 3] >> ((register_1 & 4) << 1)));
} else {
set_either_two_bytes_of_reg_ABCD(0, x);
}
}
break Fd;
case 0xb1:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = regs[register_0];
y = do_32bit_math(5, regs[0], x);
if (y == 0) {
regs[register_0] = regs[register_1];
} else {
regs[0] = x;
}
} else {
mem8_loc = Pb(mem8);
x = ld_32bits_mem8_write();
y = do_32bit_math(5, regs[0], x);
if (y == 0) {
st32_mem8_write(regs[register_1]);
} else {
regs[0] = x;
}
}
break Fd;
case 0xa0:
case 0xa8:
xd(cpu.segs[(OPbyte >> 3) & 7].selector);
break Fd;
case 0xa1:
case 0xa9:
Ie((OPbyte >> 3) & 7, Ad() & 0xffff);
Bd();
break Fd;
case 0xc8:
case 0xc9:
case 0xca:
case 0xcb:
case 0xcc:
case 0xcd:
case 0xce:
case 0xcf:
register_1 = OPbyte & 7;
x = regs[register_1];
x = (x >>> 24) | ((x >> 8) & 0x0000ff00) | ((x << 8) & 0x00ff0000) | (x << 24);
regs[register_1] = x;
break Fd;
case 0x04:
case 0x05:
case 0x07:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0c:
case 0x0d:
case 0x0e:
case 0x0f:
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x14:
case 0x15:
case 0x16:
case 0x17:
case 0x18:
case 0x19:
case 0x1a:
case 0x1b:
case 0x1c:
case 0x1d:
case 0x1e:
case 0x1f:
case 0x21:
case 0x24:
case 0x25:
case 0x26:
case 0x27:
case 0x28:
case 0x29:
case 0x2a:
case 0x2b:
case 0x2c:
case 0x2d:
case 0x2e:
case 0x2f:
case 0x30:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
case 0x3a:
case 0x3b:
case 0x3c:
case 0x3d:
case 0x3e:
case 0x3f:
case 0x50:
case 0x51:
case 0x52:
case 0x53:
case 0x54:
case 0x55:
case 0x56:
case 0x57:
case 0x58:
case 0x59:
case 0x5a:
case 0x5b:
case 0x5c:
case 0x5d:
case 0x5e:
case 0x5f:
case 0x60:
case 0x61:
case 0x62:
case 0x63:
case 0x64:
case 0x65:
case 0x66:
case 0x67:
case 0x68:
case 0x69:
case 0x6a:
case 0x6b:
case 0x6c:
case 0x6d:
case 0x6e:
case 0x6f:
case 0x70:
case 0x71:
case 0x72:
case 0x73:
case 0x74:
case 0x75:
case 0x76:
case 0x77:
case 0x78:
case 0x79:
case 0x7a:
case 0x7b:
case 0x7c:
case 0x7d:
case 0x7e:
case 0x7f:
case 0xa6:
case 0xa7:
case 0xaa:
case 0xae:
case 0xb8:
case 0xb9:
case 0xc2:
case 0xc3:
case 0xc4:
case 0xc5:
case 0xc6:
case 0xc7:
case 0xd0:
case 0xd1:
case 0xd2:
case 0xd3:
case 0xd4:
case 0xd5:
case 0xd6:
case 0xd7:
case 0xd8:
case 0xd9:
case 0xda:
case 0xdb:
case 0xdc:
case 0xdd:
case 0xde:
case 0xdf:
case 0xe0:
case 0xe1:
case 0xe2:
case 0xe3:
case 0xe4:
case 0xe5:
case 0xe6:
case 0xe7:
case 0xe8:
case 0xe9:
case 0xea:
case 0xeb:
case 0xec:
case 0xed:
case 0xee:
case 0xef:
case 0xf0:
case 0xf1:
case 0xf2:
case 0xf3:
case 0xf4:
case 0xf5:
case 0xf6:
case 0xf7:
case 0xf8:
case 0xf9:
case 0xfa:
case 0xfb:
case 0xfc:
case 0xfd:
case 0xfe:
case 0xff:
default:
blow_up_errcode0(6);
}
break;
default:
switch (OPbyte) {
case 0x189:
mem8 = phys_mem8[mem_ptr++];
x = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
set_lower_two_bytes_of_register(mem8 & 7, x);
} else {
mem8_loc = Pb(mem8);
st16_mem8_write(x);
}
break Fd;
case 0x18b:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
set_lower_two_bytes_of_register((mem8 >> 3) & 7, x);
break Fd;
case 0x1b8:
case 0x1b9:
case 0x1ba:
case 0x1bb:
case 0x1bc:
case 0x1bd:
case 0x1be:
case 0x1bf:
set_lower_two_bytes_of_register(OPbyte & 7, Ob());
break Fd;
case 0x1a1:
mem8_loc = Ub();
x = ld_16bits_mem8_read();
set_lower_two_bytes_of_register(0, x);
break Fd;
case 0x1a3:
mem8_loc = Ub();
st16_mem8_write(regs[0]);
break Fd;
case 0x1c7:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = Ob();
set_lower_two_bytes_of_register(mem8 & 7, x);
} else {
mem8_loc = Pb(mem8);
x = Ob();
st16_mem8_write(x);
}
break Fd;
case 0x191:
case 0x192:
case 0x193:
case 0x194:
case 0x195:
case 0x196:
case 0x197:
register_1 = OPbyte & 7;
x = regs[0];
set_lower_two_bytes_of_register(0, regs[register_1]);
set_lower_two_bytes_of_register(register_1, x);
break Fd;
case 0x187:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = regs[register_0];
set_lower_two_bytes_of_register(register_0, regs[register_1]);
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
st16_mem8_write(regs[register_1]);
}
set_lower_two_bytes_of_register(register_1, x);
break Fd;
case 0x1c4:
Vf(0);
break Fd;
case 0x1c5:
Vf(3);
break Fd;
case 0x101:
case 0x109:
case 0x111:
case 0x119:
case 0x121:
case 0x129:
case 0x131:
case 0x139:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (OPbyte >> 3) & 7;
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, do_16bit_math(conditional_var, regs[register_0], y));
} else {
mem8_loc = Pb(mem8);
if (conditional_var != 7) {
x = ld_16bits_mem8_write();
x = do_16bit_math(conditional_var, x, y);
st16_mem8_write(x);
} else {
x = ld_16bits_mem8_read();
do_16bit_math(7, x, y);
}
}
break Fd;
case 0x103:
case 0x10b:
case 0x113:
case 0x11b:
case 0x123:
case 0x12b:
case 0x133:
case 0x13b:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (OPbyte >> 3) & 7;
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_16bits_mem8_read();
}
set_lower_two_bytes_of_register(register_1, do_16bit_math(conditional_var, regs[register_1], y));
break Fd;
case 0x105:
case 0x10d:
case 0x115:
case 0x11d:
case 0x125:
case 0x12d:
case 0x135:
case 0x13d:
y = Ob();
conditional_var = (OPbyte >> 3) & 7;
set_lower_two_bytes_of_register(0, do_16bit_math(conditional_var, regs[0], y));
break Fd;
case 0x181:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
y = Ob();
regs[register_0] = do_16bit_math(conditional_var, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
y = Ob();
if (conditional_var != 7) {
x = ld_16bits_mem8_write();
x = do_16bit_math(conditional_var, x, y);
st16_mem8_write(x);
} else {
x = ld_16bits_mem8_read();
do_16bit_math(7, x, y);
}
}
break Fd;
case 0x183:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
y = ((phys_mem8[mem_ptr++] << 24) >> 24);
set_lower_two_bytes_of_register(register_0, do_16bit_math(conditional_var, regs[register_0], y));
} else {
mem8_loc = Pb(mem8);
y = ((phys_mem8[mem_ptr++] << 24) >> 24);
if (conditional_var != 7) {
x = ld_16bits_mem8_write();
x = do_16bit_math(conditional_var, x, y);
st16_mem8_write(x);
} else {
x = ld_16bits_mem8_read();
do_16bit_math(7, x, y);
}
}
break Fd;
case 0x140:
case 0x141:
case 0x142:
case 0x143:
case 0x144:
case 0x145:
case 0x146:
case 0x147:
register_1 = OPbyte & 7;
set_lower_two_bytes_of_register(register_1, ec(regs[register_1]));
break Fd;
case 0x148:
case 0x149:
case 0x14a:
case 0x14b:
case 0x14c:
case 0x14d:
case 0x14e:
case 0x14f:
register_1 = OPbyte & 7;
set_lower_two_bytes_of_register(register_1, fc(regs[register_1]));
break Fd;
case 0x16b:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_16bits_mem8_read();
}
z = ((phys_mem8[mem_ptr++] << 24) >> 24);
set_lower_two_bytes_of_register(register_1, Rc(y, z));
break Fd;
case 0x169:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_16bits_mem8_read();
}
z = Ob();
set_lower_two_bytes_of_register(register_1, Rc(y, z));
break Fd;
case 0x185:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
y = regs[(mem8 >> 3) & 7];
{
_dst = (((x & y) << 16) >> 16);
_op = 13;
}
break Fd;
case 0x1a9:
y = Ob();
{
_dst = (((regs[0] & y) << 16) >> 16);
_op = 13;
}
break Fd;
case 0x1f7:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 0:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
y = Ob();
{
_dst = (((x & y) << 16) >> 16);
_op = 13;
}
break;
case 2:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, ~regs[register_0]);
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
x = ~x;
st16_mem8_write(x);
}
break;
case 3:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, do_16bit_math(5, 0, regs[register_0]));
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
x = do_16bit_math(5, 0, x);
st16_mem8_write(x);
}
break;
case 4:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
x = Qc(regs[0], x);
set_lower_two_bytes_of_register(0, x);
set_lower_two_bytes_of_register(2, x >> 16);
break;
case 5:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
x = Rc(regs[0], x);
set_lower_two_bytes_of_register(0, x);
set_lower_two_bytes_of_register(2, x >> 16);
break;
case 6:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
Fc(x);
break;
case 7:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
Gc(x);
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0x1c1:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = phys_mem8[mem_ptr++];
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, shift16(conditional_var, regs[register_0], y));
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
x = ld_16bits_mem8_write();
x = shift16(conditional_var, x, y);
st16_mem8_write(x);
}
break Fd;
case 0x1d1:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, shift16(conditional_var, regs[register_0], 1));
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
x = shift16(conditional_var, x, 1);
st16_mem8_write(x);
}
break Fd;
case 0x1d3:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
y = regs[1] & 0xff;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, shift16(conditional_var, regs[register_0], y));
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
x = shift16(conditional_var, x, y);
st16_mem8_write(x);
}
break Fd;
case 0x198:
set_lower_two_bytes_of_register(0, (regs[0] << 24) >> 24);
break Fd;
case 0x199:
set_lower_two_bytes_of_register(2, (regs[0] << 16) >> 31);
break Fd;
case 0x190:
break Fd;
case 0x150:
case 0x151:
case 0x152:
case 0x153:
case 0x154:
case 0x155:
case 0x156:
case 0x157:
vd(regs[OPbyte & 7]);
break Fd;
case 0x158:
case 0x159:
case 0x15a:
case 0x15b:
case 0x15c:
case 0x15d:
case 0x15e:
case 0x15f:
x = yd();
zd();
set_lower_two_bytes_of_register(OPbyte & 7, x);
break Fd;
case 0x160:
Jf();
break Fd;
case 0x161:
Lf();
break Fd;
case 0x18f:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = yd();
zd();
set_lower_two_bytes_of_register(mem8 & 7, x);
} else {
x = yd();
y = regs[4];
zd();
z = regs[4];
mem8_loc = Pb(mem8);
regs[4] = y;
st16_mem8_write(x);
regs[4] = z;
}
break Fd;
case 0x168:
x = Ob();
vd(x);
break Fd;
case 0x16a:
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
vd(x);
break Fd;
case 0x1c8:
Pf();
break Fd;
case 0x1c9:
Nf();
break Fd;
case 0x106:
case 0x10e:
case 0x116:
case 0x11e:
vd(cpu.segs[(OPbyte >> 3) & 3].selector);
break Fd;
case 0x107:
case 0x117:
case 0x11f:
Ie((OPbyte >> 3) & 3, yd());
zd();
break Fd;
case 0x18d:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3)
blow_up_errcode0(6);
CS_flags = (CS_flags & ~0x000f) | (6 + 1);
set_lower_two_bytes_of_register((mem8 >> 3) & 7, Pb(mem8));
break Fd;
case 0x1ff:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 0:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, ec(regs[register_0]));
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
x = ec(x);
st16_mem8_write(x);
}
break;
case 1:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, fc(regs[register_0]));
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
x = fc(x);
st16_mem8_write(x);
}
break;
case 2:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7] & 0xffff;
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
vd((eip + mem_ptr - initial_mem_ptr));
eip = x, mem_ptr = initial_mem_ptr = 0;
break;
case 4:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7] & 0xffff;
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
eip = x, mem_ptr = initial_mem_ptr = 0;
break;
case 6:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
vd(x);
break;
case 3:
case 5:
if ((mem8 >> 6) == 3)
blow_up_errcode0(6);
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
mem8_loc = (mem8_loc + 2) >> 0;
y = ld_16bits_mem8_read();
if (conditional_var == 3)
Ze(0, y, x, (eip + mem_ptr - initial_mem_ptr));
else
Oe(y, x);
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0x1eb:
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
eip = (eip + mem_ptr - initial_mem_ptr + x) & 0xffff, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0x1e9:
x = Ob();
eip = (eip + mem_ptr - initial_mem_ptr + x) & 0xffff, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0x170:
case 0x171:
case 0x172:
case 0x173:
case 0x174:
case 0x175:
case 0x176:
case 0x177:
case 0x178:
case 0x179:
case 0x17a:
case 0x17b:
case 0x17c:
case 0x17d:
case 0x17e:
case 0x17f:
x = ((phys_mem8[mem_ptr++] << 24) >> 24);
y = check_status_bits_for_jump(OPbyte & 0xf);
if (y)
eip = (eip + mem_ptr - initial_mem_ptr + x) & 0xffff, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0x1c2:
y = (Ob() << 16) >> 16;
x = yd();
regs[4] = (regs[4] & ~SS_mask) | ((regs[4] + 2 + y) & SS_mask);
eip = x, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0x1c3:
x = yd();
zd();
eip = x, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0x1e8:
x = Ob();
vd((eip + mem_ptr - initial_mem_ptr));
eip = (eip + mem_ptr - initial_mem_ptr + x) & 0xffff, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0x162:
If();
break Fd;
case 0x1a5:
lg();
break Fd;
case 0x1a7:
ng();
break Fd;
case 0x1ad:
og();
break Fd;
case 0x1af:
pg();
break Fd;
case 0x1ab:
mg();
break Fd;
case 0x16d:
jg();
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x16f:
kg();
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x1e5:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
x = phys_mem8[mem_ptr++];
set_lower_two_bytes_of_register(0, cpu.ld16_port(x));
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x1e7:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
x = phys_mem8[mem_ptr++];
cpu.st16_port(x, regs[0] & 0xffff);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x1ed:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
set_lower_two_bytes_of_register(0, cpu.ld16_port(regs[2] & 0xffff));
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x1ef:
iopl = (cpu.eflags >> 12) & 3;
if (cpu.cpl > iopl)
blow_up_errcode0(13);
cpu.st16_port(regs[2] & 0xffff, regs[0] & 0xffff);
{
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
break Bg;
}
break Fd;
case 0x166:
case 0x167:
case 0x1f0:
case 0x1f2:
case 0x1f3:
case 0x126:
case 0x12e:
case 0x136:
case 0x13e:
case 0x164:
case 0x165:
case 0x100:
case 0x108:
case 0x110:
case 0x118:
case 0x120:
case 0x128:
case 0x130:
case 0x138:
case 0x102:
case 0x10a:
case 0x112:
case 0x11a:
case 0x122:
case 0x12a:
case 0x132:
case 0x13a:
case 0x104:
case 0x10c:
case 0x114:
case 0x11c:
case 0x124:
case 0x12c:
case 0x134:
case 0x13c:
case 0x1a0:
case 0x1a2:
case 0x1d8:
case 0x1d9:
case 0x1da:
case 0x1db:
case 0x1dc:
case 0x1dd:
case 0x1de:
case 0x1df:
case 0x184:
case 0x1a8:
case 0x1f6:
case 0x1c0:
case 0x1d0:
case 0x1d2:
case 0x1fe:
case 0x1cd:
case 0x1ce:
case 0x1f5:
case 0x1f8:
case 0x1f9:
case 0x1fc:
case 0x1fd:
case 0x1fa:
case 0x1fb:
case 0x19e:
case 0x19f:
case 0x1f4:
case 0x127:
case 0x12f:
case 0x137:
case 0x13f:
case 0x1d4:
case 0x1d5:
case 0x16c:
case 0x16e:
case 0x1a4:
case 0x1a6:
case 0x1aa:
case 0x1ac:
case 0x1ae:
case 0x180:
case 0x182:
case 0x186:
case 0x188:
case 0x18a:
case 0x18c:
case 0x18e:
case 0x19b:
case 0x1b0:
case 0x1b1:
case 0x1b2:
case 0x1b3:
case 0x1b4:
case 0x1b5:
case 0x1b6:
case 0x1b7:
case 0x1c6:
case 0x1cc:
case 0x1d7:
case 0x1e4:
case 0x1e6:
case 0x1ec:
case 0x1ee:
case 0x1cf:
case 0x1ca:
case 0x1cb:
case 0x19a:
case 0x19c:
case 0x19d:
case 0x1ea:
case 0x1e0:
case 0x1e1:
case 0x1e2:
case 0x1e3:
OPbyte &= 0xff;
break;
case 0x163:
case 0x1d6:
case 0x1f1:
default:
blow_up_errcode0(6);
case 0x10f:
OPbyte = phys_mem8[mem_ptr++];
OPbyte |= 0x0100;
switch (OPbyte) {
case 0x180:
case 0x181:
case 0x182:
case 0x183:
case 0x184:
case 0x185:
case 0x186:
case 0x187:
case 0x188:
case 0x189:
case 0x18a:
case 0x18b:
case 0x18c:
case 0x18d:
case 0x18e:
case 0x18f:
x = Ob();
if (check_status_bits_for_jump(OPbyte & 0xf))
eip = (eip + mem_ptr - initial_mem_ptr + x) & 0xffff, mem_ptr = initial_mem_ptr = 0;
break Fd;
case 0x140:
case 0x141:
case 0x142:
case 0x143:
case 0x144:
case 0x145:
case 0x146:
case 0x147:
case 0x148:
case 0x149:
case 0x14a:
case 0x14b:
case 0x14c:
case 0x14d:
case 0x14e:
case 0x14f:
mem8 = phys_mem8[mem_ptr++];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_read();
}
if (check_status_bits_for_jump(OPbyte & 0xf))
set_lower_two_bytes_of_register((mem8 >> 3) & 7, x);
break Fd;
case 0x1b6:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1)) & 0xff;
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
set_lower_two_bytes_of_register(register_1, x);
break Fd;
case 0x1be:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = (regs[register_0 & 3] >> ((register_0 & 4) << 1));
} else {
mem8_loc = Pb(mem8);
x = ld_8bits_mem8_read();
}
set_lower_two_bytes_of_register(register_1, (((x) << 24) >> 24));
break Fd;
case 0x1af:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_16bits_mem8_read();
}
set_lower_two_bytes_of_register(register_1, Rc(regs[register_1], y));
break Fd;
case 0x1c1:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = regs[register_0];
y = do_16bit_math(0, x, regs[register_1]);
set_lower_two_bytes_of_register(register_1, x);
set_lower_two_bytes_of_register(register_0, y);
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
y = do_16bit_math(0, x, regs[register_1]);
st16_mem8_write(y);
set_lower_two_bytes_of_register(register_1, x);
}
break Fd;
case 0x1a0:
case 0x1a8:
vd(cpu.segs[(OPbyte >> 3) & 7].selector);
break Fd;
case 0x1a1:
case 0x1a9:
Ie((OPbyte >> 3) & 7, yd());
zd();
break Fd;
case 0x1b2:
case 0x1b4:
case 0x1b5:
Vf(OPbyte & 7);
break Fd;
case 0x1a4:
case 0x1ac:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
conditional_var = (OPbyte >> 3) & 1;
if ((mem8 >> 6) == 3) {
z = phys_mem8[mem_ptr++];
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, oc(conditional_var, regs[register_0], y, z));
} else {
mem8_loc = Pb(mem8);
z = phys_mem8[mem_ptr++];
x = ld_16bits_mem8_write();
x = oc(conditional_var, x, y, z);
st16_mem8_write(x);
}
break Fd;
case 0x1a5:
case 0x1ad:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
z = regs[1];
conditional_var = (OPbyte >> 3) & 1;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, oc(conditional_var, regs[register_0], y, z));
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
x = oc(conditional_var, x, y, z);
st16_mem8_write(x);
}
break Fd;
case 0x1ba:
mem8 = phys_mem8[mem_ptr++];
conditional_var = (mem8 >> 3) & 7;
switch (conditional_var) {
case 4:
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
y = phys_mem8[mem_ptr++];
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
x = ld_16bits_mem8_read();
}
tc(x, y);
break;
case 5:
case 6:
case 7:
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
y = phys_mem8[mem_ptr++];
regs[register_0] = vc(conditional_var & 3, regs[register_0], y);
} else {
mem8_loc = Pb(mem8);
y = phys_mem8[mem_ptr++];
x = ld_16bits_mem8_write();
x = vc(conditional_var & 3, x, y);
st16_mem8_write(x);
}
break;
default:
blow_up_errcode0(6);
}
break Fd;
case 0x1a3:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
if ((mem8 >> 6) == 3) {
x = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
mem8_loc = (mem8_loc + (((y & 0xffff) >> 4) << 1)) >> 0;
x = ld_16bits_mem8_read();
}
tc(x, y);
break Fd;
case 0x1ab:
case 0x1b3:
case 0x1bb:
mem8 = phys_mem8[mem_ptr++];
y = regs[(mem8 >> 3) & 7];
conditional_var = (OPbyte >> 3) & 3;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
set_lower_two_bytes_of_register(register_0, vc(conditional_var, regs[register_0], y));
} else {
mem8_loc = Pb(mem8);
mem8_loc = (mem8_loc + (((y & 0xffff) >> 4) << 1)) >> 0;
x = ld_16bits_mem8_write();
x = vc(conditional_var, x, y);
st16_mem8_write(x);
}
break Fd;
case 0x1bc:
case 0x1bd:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
y = regs[mem8 & 7];
} else {
mem8_loc = Pb(mem8);
y = ld_16bits_mem8_read();
}
x = regs[register_1];
if (OPbyte & 1)
x = Ac(x, y);
else
x = yc(x, y);
set_lower_two_bytes_of_register(register_1, x);
break Fd;
case 0x1b1:
mem8 = phys_mem8[mem_ptr++];
register_1 = (mem8 >> 3) & 7;
if ((mem8 >> 6) == 3) {
register_0 = mem8 & 7;
x = regs[register_0];
y = do_16bit_math(5, regs[0], x);
if (y == 0) {
set_lower_two_bytes_of_register(register_0, regs[register_1]);
} else {
set_lower_two_bytes_of_register(0, x);
}
} else {
mem8_loc = Pb(mem8);
x = ld_16bits_mem8_write();
y = do_16bit_math(5, regs[0], x);
if (y == 0) {
st16_mem8_write(regs[register_1]);
} else {
set_lower_two_bytes_of_register(0, x);
}
}
break Fd;
case 0x100:
case 0x101:
case 0x102:
case 0x103:
case 0x120:
case 0x122:
case 0x106:
case 0x123:
case 0x1a2:
case 0x131:
case 0x190:
case 0x191:
case 0x192:
case 0x193:
case 0x194:
case 0x195:
case 0x196:
case 0x197:
case 0x198:
case 0x199:
case 0x19a:
case 0x19b:
case 0x19c:
case 0x19d:
case 0x19e:
case 0x19f:
case 0x1b0:
OPbyte = 0x0f;
mem_ptr--;
break;
case 0x104:
case 0x105:
case 0x107:
case 0x108:
case 0x109:
case 0x10a:
case 0x10b:
case 0x10c:
case 0x10d:
case 0x10e:
case 0x10f:
case 0x110:
case 0x111:
case 0x112:
case 0x113:
case 0x114:
case 0x115:
case 0x116:
case 0x117:
case 0x118:
case 0x119:
case 0x11a:
case 0x11b:
case 0x11c:
case 0x11d:
case 0x11e:
case 0x11f:
case 0x121:
case 0x124:
case 0x125:
case 0x126:
case 0x127:
case 0x128:
case 0x129:
case 0x12a:
case 0x12b:
case 0x12c:
case 0x12d:
case 0x12e:
case 0x12f:
case 0x130:
case 0x132:
case 0x133:
case 0x134:
case 0x135:
case 0x136:
case 0x137:
case 0x138:
case 0x139:
case 0x13a:
case 0x13b:
case 0x13c:
case 0x13d:
case 0x13e:
case 0x13f:
case 0x150:
case 0x151:
case 0x152:
case 0x153:
case 0x154:
case 0x155:
case 0x156:
case 0x157:
case 0x158:
case 0x159:
case 0x15a:
case 0x15b:
case 0x15c:
case 0x15d:
case 0x15e:
case 0x15f:
case 0x160:
case 0x161:
case 0x162:
case 0x163:
case 0x164:
case 0x165:
case 0x166:
case 0x167:
case 0x168:
case 0x169:
case 0x16a:
case 0x16b:
case 0x16c:
case 0x16d:
case 0x16e:
case 0x16f:
case 0x170:
case 0x171:
case 0x172:
case 0x173:
case 0x174:
case 0x175:
case 0x176:
case 0x177:
case 0x178:
case 0x179:
case 0x17a:
case 0x17b:
case 0x17c:
case 0x17d:
case 0x17e:
case 0x17f:
case 0x1a6:
case 0x1a7:
case 0x1aa:
case 0x1ae:
case 0x1b7:
case 0x1b8:
case 0x1b9:
case 0x1bf:
case 0x1c0:
default:
blow_up_errcode0(6);
}
break;
}
}
}
} while (--cycles_left); //End Giant Core DO WHILE Execution Loop
this.cycle_count += (N_cycles - cycles_left);
this.eip = (eip + mem_ptr - initial_mem_ptr);
this.cc_src = _src;
this.cc_dst = _dst;
this.cc_op = _op;
this.cc_op2 = _op2;
this.cc_dst2 = _dst2;
return exit_code;
};
CPU_X86.prototype.exec = function(N_cycles) {
var Dg, exit_code, final_cycle_count, va;
final_cycle_count = this.cycle_count + N_cycles;
exit_code = 256;
va = null;
while (this.cycle_count < final_cycle_count) {
try {
exit_code = this.exec_internal(final_cycle_count - this.cycle_count, va);
if (exit_code != 256)
break;
va = null;
} catch (Fg) {
if (Fg.hasOwnProperty("intno")) {
va = Fg;
} else {
throw Fg;
}
}
}
return exit_code;
};
CPU_X86.prototype.load_binary_ie9 = function(Gg, mem8_loc) {
var Hg, Ig, tg, i;
Hg = new XMLHttpRequest();
Hg.open('GET', Gg, false);
Hg.send(null);
if (Hg.status != 200 && Hg.status != 0) {
throw "Error while loading " + Gg;
}
Ig = new VBArray(Hg.responseBody).toArray();
tg = Ig.length;
for (i = 0; i < tg; i++) {
this.st8_phys(mem8_loc + i, Ig[i]);
}
return tg;
};
CPU_X86.prototype.load_binary = function(Gg, mem8_loc) {
var Hg, Ig, tg, i, Jg, Kg;
if (typeof ActiveXObject == "function")
return this.load_binary_ie9(Gg, mem8_loc);
Hg = new XMLHttpRequest();
Hg.open('GET', Gg, false);
Kg = ('ArrayBuffer' in window && 'Uint8Array' in window);
if (Kg && 'mozResponseType' in Hg) {
Hg.mozResponseType = 'arraybuffer';
} else if (Kg && 'responseType' in Hg) {
Hg.responseType = 'arraybuffer';
} else {
Hg.overrideMimeType('text/plain; charset=x-user-defined');
Kg = false;
}
Hg.send(null);
if (Hg.status != 200 && Hg.status != 0) {
throw "Error while loading " + Gg;
}
if (Kg && 'mozResponse' in Hg) {
Ig = Hg.mozResponse;
} else if (Kg && Hg.mozResponseArrayBuffer) {
Ig = Hg.mozResponseArrayBuffer;
} else if ('responseType' in Hg) {
Ig = Hg.response;
} else {
Ig = Hg.responseText;
Kg = false;
}
if (Kg) {
tg = Ig.byteLength;
Jg = new Uint8Array(Ig, 0, tg);
for (i = 0; i < tg; i++) {
this.st8_phys(mem8_loc + i, Jg[i]);
}
} else {
tg = Ig.length;
for (i = 0; i < tg; i++) {
this.st8_phys(mem8_loc + i, Ig.charCodeAt(i));
}
}
return tg;
};
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