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This commit is contained in:
Anselm Levskaya 2011-12-17 04:22:50 -08:00
parent e6af8fbe83
commit 754298c550
2 changed files with 175 additions and 128 deletions
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291
cpux86-ta.js
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@ -3,6 +3,49 @@
Opcode ref Opcode ref
http://ref.x86asm.net/coder32.html#xC4 http://ref.x86asm.net/coder32.html#xC4
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
===================================================================================================
CPU Emulation
Some of the code is inspired from my x86 dynamic translator present in QEMU, but there are important differences because here it is an interpreter. The CPU is close to a 486 compatible x86 without FPU. The lack of FPU is not a problem when running Linux as Operating System because it contains a FPU emulator. In order to be able to run Linux, a complete MMU is implemented. 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.
===================================================================================================
Devices
Currently there is no synchronization between the PIT frequency and the real time, so there is a variable drift between the time returned by Linux (try the "date" command) and the real time.
The UART (serial port) does not support FIFO mode. Perhaps it could help to improve the display speed.
There is no network emulation at this point.
A clipboard device (seen as /dev/clipboard in the emulator) was added to allow exchange of data between the emulator and the outside world.
Javascript terminal
Although I could have reused the excellent termlib, I decided to write my own because I was curious to see how it could be done. The main problem is the key handling which is different among browsers and OSes, as described here.
Linux distribution
I compiled a 2.6.20 Linux kernel (I guess any other version would work provided there is still an FPU emulator). The Linux kernel configuration, patch and the source code of the Linux starter (kind of BIOS) are available: linuxstart-20110820.tar.gz.
The disk image is just a ram disk image loaded at boot time. It contains a filesystem generated with Buildroot containing BusyBox. I added my toy C compiler TinyCC and my unfinished but usable emacs clone QEmacs. There is also a small MS-DOS .COM launcher I use to test the 16 bit emulation with a tiny .COM program to compute pi and a small self-assembling assembler for MS-DOS.
*/ */
var aa = [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 aa = [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];
@ -1396,7 +1439,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
a = regs[0] & 0xffff; a = regs[0] & 0xffff;
b &= 0xff; b &= 0xff;
if ((a >> 8) >= b) if ((a >> 8) >= b)
Dc(0); blow_up_errcode0(0);
q = (a / b) >> 0; q = (a / b) >> 0;
r = (a % b); r = (a % b);
Wb(0, (q & 0xff) | (r << 8)); Wb(0, (q & 0xff) | (r << 8));
@ -1406,10 +1449,10 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
a = (regs[0] << 16) >> 16; a = (regs[0] << 16) >> 16;
b = (b << 24) >> 24; b = (b << 24) >> 24;
if (b == 0) if (b == 0)
Dc(0); blow_up_errcode0(0);
q = (a / b) >> 0; q = (a / b) >> 0;
if (((q << 24) >> 24) != q) if (((q << 24) >> 24) != q)
Dc(0); blow_up_errcode0(0);
r = (a % b); r = (a % b);
Wb(0, (q & 0xff) | (r << 8)); Wb(0, (q & 0xff) | (r << 8));
} }
@ -1418,7 +1461,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
a = (regs[2] << 16) | (regs[0] & 0xffff); a = (regs[2] << 16) | (regs[0] & 0xffff);
b &= 0xffff; b &= 0xffff;
if ((a >>> 16) >= b) if ((a >>> 16) >= b)
Dc(0); blow_up_errcode0(0);
q = (a / b) >> 0; q = (a / b) >> 0;
r = (a % b); r = (a % b);
Wb(0, q); Wb(0, q);
@ -1429,10 +1472,10 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
a = (regs[2] << 16) | (regs[0] & 0xffff); a = (regs[2] << 16) | (regs[0] & 0xffff);
b = (b << 16) >> 16; b = (b << 16) >> 16;
if (b == 0) if (b == 0)
Dc(0); blow_up_errcode0(0);
q = (a / b) >> 0; q = (a / b) >> 0;
if (((q << 16) >> 16) != q) if (((q << 16) >> 16) != q)
Dc(0); blow_up_errcode0(0);
r = (a % b); r = (a % b);
Wb(0, q); Wb(0, q);
Wb(2, r); Wb(2, r);
@ -1443,7 +1486,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Jc = Jc >>> 0; Jc = Jc >>> 0;
b = b >>> 0; b = b >>> 0;
if (Ic >= b) { if (Ic >= b) {
Dc(0); blow_up_errcode0(0);
} }
if (Ic >= 0 && Ic <= 0x200000) { if (Ic >= 0 && Ic <= 0x200000) {
a = Ic * 4294967296 + Jc; a = Ic * 4294967296 + Jc;
@ -1485,11 +1528,11 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Nc ^= Mc; Nc ^= Mc;
if (Nc) { if (Nc) {
if ((q >>> 0) > 0x80000000) if ((q >>> 0) > 0x80000000)
Dc(0); blow_up_errcode0(0);
q = (-q) >> 0; q = (-q) >> 0;
} else { } else {
if ((q >>> 0) >= 0x80000000) if ((q >>> 0) >= 0x80000000)
Dc(0); blow_up_errcode0(0);
} }
if (Mc) { if (Mc) {
Ma = (-Ma) >> 0; Ma = (-Ma) >> 0;
@ -2019,7 +2062,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
cpu.cc_dst2 = _dst2; cpu.cc_dst2 = _dst2;
throw {intno: intno, error_code: error_code}; throw {intno: intno, error_code: error_code};
} }
function Dc(intno) { function blow_up_errcode0(intno) {
blow_up(intno, 0); blow_up(intno, 0);
} }
@ -2107,7 +2150,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x65: case 0x65:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
b = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); b = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2120,7 +2163,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
b = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); b = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2267,7 +2310,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xd5: case 0xd5:
n++; n++;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xb8: case 0xb8:
case 0xb9: case 0xb9:
@ -2291,7 +2334,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xe8: case 0xe8:
n += Ed; n += Ed;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0x88: case 0x88:
case 0x89: case 0x89:
@ -2358,7 +2401,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
{ {
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2380,7 +2423,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x04: case 0x04:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2425,7 +2468,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
} }
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xa0: case 0xa0:
@ -2437,7 +2480,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
else else
n += 4; n += 4;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xc6: case 0xc6:
case 0x80: case 0x80:
@ -2449,7 +2492,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
{ {
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2471,7 +2514,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x04: case 0x04:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2516,11 +2559,11 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
} }
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
n++; n++;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xc7: case 0xc7:
case 0x81: case 0x81:
@ -2528,7 +2571,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
{ {
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2550,7 +2593,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x04: case 0x04:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2595,17 +2638,17 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
} }
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
n += Ed; n += Ed;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xf6: case 0xf6:
{ {
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2627,7 +2670,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x04: case 0x04:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2672,20 +2715,20 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
} }
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
Ja = (Ea >> 3) & 7; Ja = (Ea >> 3) & 7;
if (Ja == 0) { if (Ja == 0) {
n++; n++;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xf7: case 0xf7:
{ {
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2707,7 +2750,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x04: case 0x04:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2752,40 +2795,40 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
} }
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
Ja = (Ea >> 3) & 7; Ja = (Ea >> 3) & 7;
if (Ja == 0) { if (Ja == 0) {
n += Ed; n += Ed;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xea: case 0xea:
case 0x9a: case 0x9a:
n += 2 + Ed; n += 2 + Ed;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xc2: case 0xc2:
case 0xca: case 0xca:
n += 2; n += 2;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xc8: case 0xc8:
n += 3; n += 3;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xd6: case 0xd6:
case 0xf1: case 0xf1:
default: default:
Dc(6); blow_up_errcode0(6);
case 0x0f: case 0x0f:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
b = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); b = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2824,7 +2867,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x8f: case 0x8f:
n += Ed; n += Ed;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0x90: case 0x90:
case 0x91: case 0x91:
@ -2888,7 +2931,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
{ {
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2910,7 +2953,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x04: case 0x04:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2955,7 +2998,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
} }
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xa4: case 0xa4:
@ -2964,7 +3007,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
{ {
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Ea = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -2986,7 +3029,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x04: case 0x04:
{ {
if ((n + 1) > 15) if ((n + 1) > 15)
Dc(6); blow_up_errcode0(6);
fa = (Nb + (n++)) >> 0; fa = (Nb + (n++)) >> 0;
Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]); Dd = (((Ua = _tlb_read_[fa >>> 12]) == -1) ? db() : phys_mem8[fa ^ Ua]);
} }
@ -3031,11 +3074,11 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
} }
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
} }
n++; n++;
if (n > 15) if (n > 15)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0x04: case 0x04:
case 0x05: case 0x05:
@ -3153,7 +3196,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xc6: case 0xc6:
case 0xc7: case 0xc7:
default: default:
Dc(6); blow_up_errcode0(6);
} }
break; break;
} }
@ -4276,7 +4319,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
if (cpu.eflags & 0x00020000) { if (cpu.eflags & 0x00020000) {
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (Sa != 3) if (Sa != 3)
Dc(13); blow_up_errcode0(13);
} }
af(je, 1, 0); af(je, 1, 0);
} else { } else {
@ -4342,7 +4385,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
function qf(je, pf) { function qf(je, pf) {
var ga, Ea, Ga, selector; var ga, Ea, Ga, selector;
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000)) if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000))
Dc(6); blow_up_errcode0(6);
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
if ((Ea >> 6) == 3) { if ((Ea >> 6) == 3) {
@ -4412,7 +4455,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
function tf() { function tf() {
var Ea, ga, Ha, Fa; var Ea, ga, Ha, Fa;
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000)) if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000))
Dc(6); blow_up_errcode0(6);
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 6) == 3) { if ((Ea >> 6) == 3) {
Fa = Ea & 7; Fa = Ea & 7;
@ -4459,7 +4502,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
function vf(base) { function vf(base) {
var wf, xf; var wf, xf;
if (base == 0) if (base == 0)
Dc(0); blow_up_errcode0(0);
wf = regs[0] & 0xff; wf = regs[0] & 0xff;
xf = (wf / base) & -1; xf = (wf / base) & -1;
wf = (wf % base); wf = (wf % base);
@ -4569,7 +4612,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var Ea, ga, Ha, Ia; var Ea, ga, Ha, Ia;
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 3) == 3) if ((Ea >> 3) == 3)
Dc(6); blow_up_errcode0(6);
fa = Pb(Ea); fa = Pb(Ea);
ga = kb(); ga = kb();
fa = (fa + 4) & -1; fa = (fa + 4) & -1;
@ -4577,13 +4620,13 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
Ia = regs[Ga]; Ia = regs[Ga];
if (Ia < ga || Ia > Ha) if (Ia < ga || Ia > Ha)
Dc(5); blow_up_errcode0(5);
} }
function If() { function If() {
var Ea, ga, Ha, Ia; var Ea, ga, Ha, Ia;
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 3) == 3) if ((Ea >> 3) == 3)
Dc(6); blow_up_errcode0(6);
fa = Pb(Ea); fa = Pb(Ea);
ga = (ib() << 16) >> 16; ga = (ib() << 16) >> 16;
fa = (fa + 2) & -1; fa = (fa + 2) & -1;
@ -4591,7 +4634,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
Ia = (regs[Ga] << 16) >> 16; Ia = (regs[Ga] << 16) >> 16;
if (Ia < ga || Ia > Ha) if (Ia < ga || Ia > Ha)
Dc(5); blow_up_errcode0(5);
} }
function Jf() { function Jf() {
var ga, Ha, Ga; var ga, Ha, Ga;
@ -4731,7 +4774,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var ga, Ha, Ea; var ga, Ha, Ea;
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 3) == 3) if ((Ea >> 3) == 3)
Dc(6); blow_up_errcode0(6);
fa = Pb(Ea); fa = Pb(Ea);
ga = kb(); ga = kb();
fa += 4; fa += 4;
@ -4743,7 +4786,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var ga, Ha, Ea; var ga, Ha, Ea;
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 3) == 3) if ((Ea >> 3) == 3)
Dc(6); blow_up_errcode0(6);
fa = Pb(Ea); fa = Pb(Ea);
ga = ib(); ga = ib();
fa += 2; fa += 2;
@ -4755,7 +4798,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var Xf, Yf, Zf, ag, Sa, ga; var Xf, Yf, Zf, ag, Sa, ga;
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
if (Da & 0x0080) if (Da & 0x0080)
Xf = 0xffff; Xf = 0xffff;
else else
@ -4784,7 +4827,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var Xf, cg, Sb, ag, Zf, Sa, ga; var Xf, cg, Sb, ag, Zf, Sa, ga;
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
if (Da & 0x0080) if (Da & 0x0080)
Xf = 0xffff; Xf = 0xffff;
else else
@ -4983,7 +5026,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var Xf, Yf, Zf, ag, Sa, ga; var Xf, Yf, Zf, ag, Sa, ga;
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
if (Da & 0x0080) if (Da & 0x0080)
Xf = 0xffff; Xf = 0xffff;
else else
@ -5012,7 +5055,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var Xf, cg, Sb, ag, Zf, Sa, ga; var Xf, cg, Sb, ag, Zf, Sa, ga;
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
if (Da & 0x0080) if (Da & 0x0080)
Xf = 0xffff; Xf = 0xffff;
else else
@ -5211,7 +5254,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var Xf, Yf, Zf, ag, Sa, ga; var Xf, Yf, Zf, ag, Sa, ga;
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
if (Da & 0x0080) if (Da & 0x0080)
Xf = 0xffff; Xf = 0xffff;
else else
@ -5240,7 +5283,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
var Xf, cg, Sb, ag, Zf, Sa, ga; var Xf, cg, Sb, ag, Zf, Sa, ga;
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
if (Da & 0x0080) if (Da & 0x0080)
Xf = 0xffff; Xf = 0xffff;
else else
@ -5799,7 +5842,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
if (Ga >= 6 || Ga == 1) if (Ga >= 6 || Ga == 1)
Dc(6); blow_up_errcode0(6);
if ((Ea >> 6) == 3) { if ((Ea >> 6) == 3) {
ga = regs[Ea & 7] & 0xffff; ga = regs[Ea & 7] & 0xffff;
} else { } else {
@ -5812,7 +5855,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
if (Ga >= 6) if (Ga >= 6)
Dc(6); blow_up_errcode0(6);
ga = cpu.segs[Ga].selector; ga = cpu.segs[Ga].selector;
if ((Ea >> 6) == 3) { if ((Ea >> 6) == 3) {
if ((((Da >> 8) & 1) ^ 1)) { if ((((Da >> 8) & 1) ^ 1)) {
@ -6333,7 +6376,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Ec(ga); Ec(ga);
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xf7: case 0xf7:
@ -6419,7 +6462,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
regs[2] = Ma; regs[2] = Ma;
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
//Rotate and Shift ops //Rotate and Shift ops
@ -6704,7 +6747,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x9c: case 0x9c:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if ((cpu.eflags & 0x00020000) && Sa != 3) if ((cpu.eflags & 0x00020000) && Sa != 3)
Dc(13); blow_up_errcode0(13);
ga = id() & ~(0x00020000 | 0x00010000); ga = id() & ~(0x00020000 | 0x00010000);
if ((((Da >> 8) & 1) ^ 1)) { if ((((Da >> 8) & 1) ^ 1)) {
xd(ga); xd(ga);
@ -6719,7 +6762,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x9d: case 0x9d:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if ((cpu.eflags & 0x00020000) && Sa != 3) if ((cpu.eflags & 0x00020000) && Sa != 3)
Dc(13); blow_up_errcode0(13);
if ((((Da >> 8) & 1) ^ 1)) { if ((((Da >> 8) & 1) ^ 1)) {
ga = Ad(); ga = Ad();
Bd(); Bd();
@ -6757,7 +6800,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x8d: case 0x8d:
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 6) == 3) if ((Ea >> 6) == 3)
Dc(6); blow_up_errcode0(6);
Da = (Da & ~0x000f) | (6 + 1); Da = (Da & ~0x000f) | (6 + 1);
regs[(Ea >> 3) & 7] = Pb(Ea); regs[(Ea >> 3) & 7] = Pb(Ea);
break Fd; break Fd;
@ -6788,7 +6831,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xff: case 0xff:
@ -6889,7 +6932,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 3: case 3:
case 5: case 5:
if ((Ea >> 6) == 3) if ((Ea >> 6) == 3)
Dc(6); blow_up_errcode0(6);
fa = Pb(Ea); fa = Pb(Ea);
ga = kb(); ga = kb();
fa = (fa + 4) >> 0; fa = (fa + 4) >> 0;
@ -6900,7 +6943,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Oe(Ha, ga); Oe(Ha, ga);
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xeb: case 0xeb:
@ -7173,7 +7216,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xcd: case 0xcd:
ga = phys_mem8[Kb++]; ga = phys_mem8[Kb++];
if ((cpu.eflags & 0x00020000) && ((cpu.eflags >> 12) & 3) != 3) if ((cpu.eflags & 0x00020000) && ((cpu.eflags >> 12) & 3) != 3)
Dc(13); blow_up_errcode0(13);
Ha = (eip + Kb - Mb); Ha = (eip + Kb - Mb);
Ae(ga, 1, 0, Ha, 0); Ae(ga, 1, 0, Ha, 0);
break Fd; break Fd;
@ -7210,13 +7253,13 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xfa: case 0xfa:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
cpu.eflags &= ~0x00000200; cpu.eflags &= ~0x00000200;
break Fd; break Fd;
case 0xfb: case 0xfb:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
cpu.eflags |= 0x00000200; cpu.eflags |= 0x00000200;
{ {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
@ -7234,7 +7277,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
break Fd; break Fd;
case 0xf4: case 0xf4:
if (cpu.cpl != 0) if (cpu.cpl != 0)
Dc(13); blow_up_errcode0(13);
cpu.halted = 1; cpu.halted = 1;
La = 257; La = 257;
break Bg; break Bg;
@ -7305,7 +7348,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xde: case 0xde:
case 0xdf: case 0xdf:
if (cpu.cr0 & ((1 << 2) | (1 << 3))) { if (cpu.cr0 & ((1 << 2) | (1 << 3))) {
Dc(7); blow_up_errcode0(7);
} }
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
@ -7322,7 +7365,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xe4: case 0xe4:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
ga = phys_mem8[Kb++]; ga = phys_mem8[Kb++];
Vb(0, cpu.ld8_port(ga)); Vb(0, cpu.ld8_port(ga));
{ {
@ -7333,7 +7376,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xe5: case 0xe5:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
ga = phys_mem8[Kb++]; ga = phys_mem8[Kb++];
regs[0] = cpu.ld32_port(ga); regs[0] = cpu.ld32_port(ga);
{ {
@ -7344,7 +7387,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xe6: case 0xe6:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
ga = phys_mem8[Kb++]; ga = phys_mem8[Kb++];
cpu.st8_port(ga, regs[0] & 0xff); cpu.st8_port(ga, regs[0] & 0xff);
{ {
@ -7355,7 +7398,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xe7: case 0xe7:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
ga = phys_mem8[Kb++]; ga = phys_mem8[Kb++];
cpu.st32_port(ga, regs[0]); cpu.st32_port(ga, regs[0]);
{ {
@ -7366,7 +7409,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xec: case 0xec:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
Vb(0, cpu.ld8_port(regs[2] & 0xffff)); Vb(0, cpu.ld8_port(regs[2] & 0xffff));
{ {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
@ -7376,7 +7419,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xed: case 0xed:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
regs[0] = cpu.ld32_port(regs[2] & 0xffff); regs[0] = cpu.ld32_port(regs[2] & 0xffff);
{ {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
@ -7386,7 +7429,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xee: case 0xee:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
cpu.st8_port(regs[2] & 0xffff, regs[0] & 0xff); cpu.st8_port(regs[2] & 0xffff, regs[0] & 0xff);
{ {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
@ -7396,7 +7439,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xef: case 0xef:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
cpu.st32_port(regs[2] & 0xffff, regs[0]); cpu.st32_port(regs[2] & 0xffff, regs[0]);
{ {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
@ -7428,9 +7471,13 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
break Fd; break Fd;
case 0xd6: case 0xd6:
case 0xf1: case 0xf1:
Dc(6); blow_up_errcode0(6);
break; break;
/* TWO BYTE CODE INSTRUCTIONS BEGIN WITH 0F : 0F xx */
/*
TWO BYTE CODE INSTRUCTIONS BEGIN WITH 0F : 0F xx
=====================================================================================================
*/
case 0x0f: case 0x0f:
b = phys_mem8[Kb++]; b = phys_mem8[Kb++];
switch (b) { switch (b) {
@ -7556,7 +7603,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
break Fd; break Fd;
case 0x00: case 0x00:
if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000)) if (!(cpu.cr0 & (1 << 0)) || (cpu.eflags & 0x00020000))
Dc(6); blow_up_errcode0(6);
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
Ja = (Ea >> 3) & 7; Ja = (Ea >> 3) & 7;
switch (Ja) { switch (Ja) {
@ -7576,7 +7623,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 2: case 2:
case 3: case 3:
if (cpu.cpl != 0) if (cpu.cpl != 0)
Dc(13); blow_up_errcode0(13);
if ((Ea >> 6) == 3) { if ((Ea >> 6) == 3) {
ga = regs[Ea & 7] & 0xffff; ga = regs[Ea & 7] & 0xffff;
} else { } else {
@ -7599,7 +7646,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
sf(ga, Ja & 1); sf(ga, Ja & 1);
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0x01: case 0x01:
@ -7609,9 +7656,9 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 2: case 2:
case 3: case 3:
if ((Ea >> 6) == 3) if ((Ea >> 6) == 3)
Dc(6); blow_up_errcode0(6);
if (this.cpl != 0) if (this.cpl != 0)
Dc(13); blow_up_errcode0(13);
fa = Pb(Ea); fa = Pb(Ea);
ga = ib(); ga = ib();
fa += 2; fa += 2;
@ -7626,14 +7673,14 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
break; break;
case 7: case 7:
if (this.cpl != 0) if (this.cpl != 0)
Dc(13); blow_up_errcode0(13);
if ((Ea >> 6) == 3) if ((Ea >> 6) == 3)
Dc(6); blow_up_errcode0(6);
fa = Pb(Ea); fa = Pb(Ea);
cpu.tlb_flush_page(fa & -4096); cpu.tlb_flush_page(fa & -4096);
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0x02: case 0x02:
@ -7642,10 +7689,10 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
break Fd; break Fd;
case 0x20: case 0x20:
if (cpu.cpl != 0) if (cpu.cpl != 0)
Dc(13); blow_up_errcode0(13);
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 6) != 3) if ((Ea >> 6) != 3)
Dc(6); blow_up_errcode0(6);
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
switch (Ga) { switch (Ga) {
case 0: case 0:
@ -7661,16 +7708,16 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
ga = cpu.cr4; ga = cpu.cr4;
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
regs[Ea & 7] = ga; regs[Ea & 7] = ga;
break Fd; break Fd;
case 0x22: case 0x22:
if (cpu.cpl != 0) if (cpu.cpl != 0)
Dc(13); blow_up_errcode0(13);
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 6) != 3) if ((Ea >> 6) != 3)
Dc(6); blow_up_errcode0(6);
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
ga = regs[Ea & 7]; ga = regs[Ea & 7];
switch (Ga) { switch (Ga) {
@ -7687,24 +7734,24 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Td(ga); Td(ga);
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0x06: case 0x06:
if (cpu.cpl != 0) if (cpu.cpl != 0)
Dc(13); blow_up_errcode0(13);
Pd(cpu.cr0 & ~(1 << 3)); Pd(cpu.cr0 & ~(1 << 3));
break Fd; break Fd;
case 0x23: case 0x23:
if (cpu.cpl != 0) if (cpu.cpl != 0)
Dc(13); blow_up_errcode0(13);
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 6) != 3) if ((Ea >> 6) != 3)
Dc(6); blow_up_errcode0(6);
Ga = (Ea >> 3) & 7; Ga = (Ea >> 3) & 7;
ga = regs[Ea & 7]; ga = regs[Ea & 7];
if (Ga == 4 || Ga == 5) if (Ga == 4 || Ga == 5)
Dc(6); blow_up_errcode0(6);
break Fd; break Fd;
case 0xb2: case 0xb2:
case 0xb4: case 0xb4:
@ -7803,7 +7850,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0xa3: case 0xa3:
@ -7863,7 +7910,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
break Fd; break Fd;
case 0x31: case 0x31:
if ((cpu.cr4 & (1 << 2)) && cpu.cpl != 0) if ((cpu.cr4 & (1 << 2)) && cpu.cpl != 0)
Dc(13); blow_up_errcode0(13);
ga = md(); ga = md();
regs[0] = ga >>> 0; regs[0] = ga >>> 0;
regs[2] = (ga / 0x100000000) >>> 0; regs[2] = (ga / 0x100000000) >>> 0;
@ -8134,7 +8181,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0xfe: case 0xfe:
case 0xff: case 0xff:
default: default:
Dc(6); blow_up_errcode0(6);
} }
break; break;
default: default:
@ -8465,7 +8512,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Gc(ga); Gc(ga);
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0x1c1: case 0x1c1:
@ -8592,7 +8639,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x18d: case 0x18d:
Ea = phys_mem8[Kb++]; Ea = phys_mem8[Kb++];
if ((Ea >> 6) == 3) if ((Ea >> 6) == 3)
Dc(6); blow_up_errcode0(6);
Da = (Da & ~0x000f) | (6 + 1); Da = (Da & ~0x000f) | (6 + 1);
Wb((Ea >> 3) & 7, Pb(Ea)); Wb((Ea >> 3) & 7, Pb(Ea));
break Fd; break Fd;
@ -8653,7 +8700,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 3: case 3:
case 5: case 5:
if ((Ea >> 6) == 3) if ((Ea >> 6) == 3)
Dc(6); blow_up_errcode0(6);
fa = Pb(Ea); fa = Pb(Ea);
ga = ib(); ga = ib();
fa = (fa + 2) >> 0; fa = (fa + 2) >> 0;
@ -8664,7 +8711,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
Oe(Ha, ga); Oe(Ha, ga);
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0x1eb: case 0x1eb:
@ -8747,7 +8794,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x1e5: case 0x1e5:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
ga = phys_mem8[Kb++]; ga = phys_mem8[Kb++];
Wb(0, cpu.ld16_port(ga)); Wb(0, cpu.ld16_port(ga));
{ {
@ -8758,7 +8805,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x1e7: case 0x1e7:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
ga = phys_mem8[Kb++]; ga = phys_mem8[Kb++];
cpu.st16_port(ga, regs[0] & 0xffff); cpu.st16_port(ga, regs[0] & 0xffff);
{ {
@ -8769,7 +8816,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x1ed: case 0x1ed:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
Wb(0, cpu.ld16_port(regs[2] & 0xffff)); Wb(0, cpu.ld16_port(regs[2] & 0xffff));
{ {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
@ -8779,7 +8826,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x1ef: case 0x1ef:
Sa = (cpu.eflags >> 12) & 3; Sa = (cpu.eflags >> 12) & 3;
if (cpu.cpl > Sa) if (cpu.cpl > Sa)
Dc(13); blow_up_errcode0(13);
cpu.st16_port(regs[2] & 0xffff, regs[0] & 0xffff); cpu.st16_port(regs[2] & 0xffff, regs[0] & 0xffff);
{ {
if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200)) if (cpu.hard_irq != 0 && (cpu.eflags & 0x00000200))
@ -8903,7 +8950,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x1d6: case 0x1d6:
case 0x1f1: case 0x1f1:
default: default:
Dc(6); blow_up_errcode0(6);
case 0x10f: case 0x10f:
b = phys_mem8[Kb++]; b = phys_mem8[Kb++];
b |= 0x0100; b |= 0x0100;
@ -9084,7 +9131,7 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
} }
break; break;
default: default:
Dc(6); blow_up_errcode0(6);
} }
break Fd; break Fd;
case 0x1a3: case 0x1a3:
@ -9299,13 +9346,13 @@ CPU_X86.prototype.exec_internal = function(ua, va) {
case 0x1bf: case 0x1bf:
case 0x1c0: case 0x1c0:
default: default:
Dc(6); blow_up_errcode0(6);
} }
break; break;
} }
} }
} }
} while (--Ka); } while (--Ka); //End Giant Core DO WHILE Execution Loop
this.cycle_count += (ua - Ka); this.cycle_count += (ua - Ka);
this.eip = (eip + Kb - Mb); this.eip = (eip + Kb - Mb);
this.cc_src = _src; this.cc_src = _src;

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