2024-04-09 23:46:56 +08:00
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2024-05-21 21:09:04 +08:00
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.set MAGIC, 0x1badb002
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.set FLAGS, 7
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/*.set FLAGS, 3 */
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2024-05-19 18:05:00 +08:00
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.set CHECKSUM, -(MAGIC + FLAGS)
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2024-05-21 21:09:04 +08:00
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.set MODE_TYPE, 0
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.set WIDTH, 1280 /* requested width */
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.set HEIGHT, 720 /* requested height */
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/* .set WIDTH, 640
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.set HEIGHT, 480 */
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.set DEPTH, 32 /* requested bits per pixel BPP */
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.set HEADER_ADDR, 0
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.set LOAD_ADDR, 0
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.set LOAD_END_ADDR, 0
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.set BSS_END_ADDR, 0
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.set ENTRY_ADDR, 0
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2024-04-09 23:46:56 +08:00
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.section .multiboot
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.long MAGIC
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2024-05-21 21:09:04 +08:00
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.long FLAGS
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.long CHECKSUM
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.long HEADER_ADDR
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.long LOAD_ADDR
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.long LOAD_END_ADDR
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.long BSS_END_ADDR
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.long ENTRY_ADDR
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.long MODE_TYPE
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.long WIDTH
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.long HEIGHT
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.long DEPTH
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/* enough space for the returned header */
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.space 4 * 13
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2024-04-09 23:46:56 +08:00
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.section .bss
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.align 16
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stack_bottom:
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.skip 16384 # 16 KiB
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stack_top:
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.section .text
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.global _start
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.type _start, @function
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_start:
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mov $stack_top, %esp
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2024-05-21 21:09:04 +08:00
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push %ebx
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2024-04-09 23:46:56 +08:00
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call kernel_main
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cli
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1: hlt
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jmp 1b
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.size _start, . - _start
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