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| author | kotorifan <kotorifan05@gmail.com> | 2026-02-03 22:50:32 +0100 |
|---|---|---|
| committer | kotorifan <kotorifan05@gmail.com> | 2026-02-04 09:01:10 +0100 |
| commit | 8a0ab6de92c0e2b4260d6a149c43c58d004d74d9 (patch) | |
| tree | b1bfdc5d119dd01e6c603ddcb40b922e672b6c24 /src/boot/boot.stage2.asm | |
| parent | 7ce57a428f4c85771582c7f486c3553cacf80c15 (diff) | |
| download | kotori-os-8a0ab6de92c0e2b4260d6a149c43c58d004d74d9.tar.gz | |
Added common.asm
Diffstat (limited to 'src/boot/boot.stage2.asm')
| -rw-r--r-- | src/boot/boot.stage2.asm | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/src/boot/boot.stage2.asm b/src/boot/boot.stage2.asm index 759b784..52c73e5 100644 --- a/src/boot/boot.stage2.asm +++ b/src/boot/boot.stage2.asm @@ -1,19 +1,47 @@ ;; boot.stage2.asm [bits 16] - - %include "boot.stage2.a20.asm" - %include "boot.stage2.pm.asm" - %include "boot.stage1.print.asm" - -section .stage2 + [org 0x7e00] + + jmp 0x0000:_s2_entry _s2_entry: - mov si, boot_stage2_msg + cli + xor ax, ax + mov ds, ax + + mov si, boot_s2_msg call _print_string - call _enable_a20 - call _enable_pm + + call _enable_a20 ; Enable A20 line + lgdt [GDT32_ptr] ; Load GDT + + ;; Setup Protected Mode + mov eax, cr0 + or eax, 1 + mov cr0, eax + + jmp CODE_SEG32:_protected_mode + [bits 32] +_protected_mode: + mov ax, DATA_SEG32 + mov ds, ax + mov esp, 0x90000 + + mov esi, boot_protmode_msg + call _print_string_pm_vga + call 0x10000 + + jmp $ + + %include "boot.stage1.print.asm" + %include "boot.stage2.a20.asm" + %include "boot.stage2.gdt32.asm" + %include "boot.stage2.print.asm" -boot_stage2_msg: db "Entering Stage 2", 13, 10, 0 +boot_s2_msg: + db "Entering Stage 2", 13, 10, 0 +boot_protmode_msg: + db "Enabling Protected Mode", 13, 10, 0 |