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| author | dzwdz | 2021-06-24 20:41:07 +0200 |
|---|---|---|
| committer | dzwdz | 2021-06-24 20:41:07 +0200 |
| commit | fde20f86f5be5a39fd3eadf95ba71761d173e0ce (patch) | |
| tree | 2fc4c65b6b610ee0aa3c82228bcf8255337b0fd6 /platform/boot.s | |
Hello world o/
Diffstat (limited to 'platform/boot.s')
| -rw-r--r-- | platform/boot.s | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/platform/boot.s b/platform/boot.s new file mode 100644 index 0000000..77af2bc --- /dev/null +++ b/platform/boot.s @@ -0,0 +1,32 @@ +.set MAGIC, 0x1BADB002 +.set FLAG_ALIGN, 1<<0 /* align modules on page boundaries */ +.set FLAG_MEMINFO, 1<<1 /* memory map */ +.set FLAGS, FLAG_ALIGN | FLAG_MEMINFO +.set CHECKSUM, -(MAGIC + FLAGS) + +.section .multiboot +.align 4 +.long MAGIC +.long FLAGS +.long CHECKSUM + +/* a lil stack */ +.section .bss +.align 16 +stack_bottom: +.skip 16384 +stack_top: + + +.section .text +.global _start +.type _start, @function +_start: + mov $stack_top, %esp + call kmain + + cli /* disable interrupts */ +1: hlt + jmp 1b + +.size _start, . - _start |