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| author | Elizabeth Alexander Hunt <me@liz.coffee> | 2026-09-28 21:08:07 -0700 |
|---|---|---|
| committer | Elizabeth Alexander Hunt <me@liz.coffee> | 2026-09-28 21:08:07 -0700 |
| commit | f2899b62b997aafc25666f21ea3a754030a8de71 (patch) | |
| tree | 9503136c7639d8478ff90977870f99046a4524f8 /boot.asm | |
| download | helloOS-f2899b62b997aafc25666f21ea3a754030a8de71.tar.gz helloOS-f2899b62b997aafc25666f21ea3a754030a8de71.zip | |
Diffstat (limited to 'boot.asm')
| -rw-r--r-- | boot.asm | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/boot.asm b/boot.asm new file mode 100644 index 0000000..1627135 --- /dev/null +++ b/boot.asm @@ -0,0 +1,29 @@ +MBALIGN equ 1 << 0 +MEMINFO equ 1 << 1 +FLAGS equ MBALIGN | MEMINFO +MAGIC equ 0x1BADB002 +CHECKSUM equ -(MAGIC + FLAGS) + +section .multiboot +align 4 + dd MAGIC + dd FLAGS + dd CHECKSUM + +section .bss +align 16 +stack_bottom: +resb 16384 +stack_top: + +section .text +global _start:function (_start.end - _start) +_start: + mov esp, stack_top + extern kernel + call kernel + cli + +jmp $ + +.end: |