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| author | Ian Moffett <ian@osmora.org> | 2025-09-13 18:57:35 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2025-09-13 18:57:35 -0400 |
| commit | 4eed9b3128b31a4583a7f94f6574cd87bcf505ff (patch) | |
| tree | 75588d14250ea29b31ac3c8ac3d639a2c4797831 /src/sys/arch/amd64/locore.S | |
| parent | 4326c0c6a3ad799c6dbbefd238e0577b94e9c45a (diff) | |
build: 'i386' -> 'amd64'
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'src/sys/arch/amd64/locore.S')
| -rw-r--r-- | src/sys/arch/amd64/locore.S | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/sys/arch/amd64/locore.S b/src/sys/arch/amd64/locore.S new file mode 100644 index 0000000..5f7c3df --- /dev/null +++ b/src/sys/arch/amd64/locore.S @@ -0,0 +1,42 @@ + .set MAGIC, 0xe85250d6 + .set ARCH, 0x00 // i386, protected mode + .set LEN, hdr_end - hdr_start + .set CHECKSUM, 0x100000000 - (0xe85250d6 + 0 + (hdr_end - hdr_start)) + + .section .multiboot + .align 4 +hdr_start: + .long MAGIC + .long ARCH + .long LEN + .long CHECKSUM +hdr_end: + +fbtag_start: + .word 5 // Type + .word 1 // Flags + .long fbtag_end - fbtag_start // Length + .long 800 // Width + .long 600 // Height + .long 32 // Depth +fbtag_end: + + .align 8 +endtag: + .word 0 + .word 0 + .word 8 + + .text + .code32 + .globl _start +_start: + cli + mov stack_bottom, %esp + push %ebx + push %eax + jmp main + + .section .bss +stack_bottom: + .fill 4096 * 16, 0 |