diff options
| author | Marvin Borner | 2020-07-15 22:56:19 +0200 |
|---|---|---|
| committer | Marvin Borner | 2020-07-15 22:56:19 +0200 |
| commit | 98557424d956bb8a93a98340720bdbe3017cc04a (patch) | |
| tree | 49eeb2e22a34ce207cea53832d8f201916e87290 /src/entry.asm | |
| parent | 0eb09c66a1cd25df53fffad4b0503e3f05cfd4f7 (diff) | |
this very much good be
Diffstat (limited to 'src/entry.asm')
| -rw-r--r-- | src/entry.asm | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/entry.asm b/src/entry.asm index 7f5ed5b..596a042 100644 --- a/src/entry.asm +++ b/src/entry.asm @@ -212,7 +212,6 @@ stage_two: and ax, EXT2_REG ; AND with regular file cmp ax, EXT2_REG ; Check if it's a regular file jne disk_error ; Not a regular file! - jmp $ ; Read first block mov ax, [bx + EXT2_POINTER_OFFSET] ; Address of first block pointer shl ax, 1 ; Multiply by 2 @@ -273,6 +272,7 @@ protected_mode_enter: lgdt [gdt_desc] ; Load GDT + ; Set protected mode via cr0 mov eax, cr0 or eax, 1 ; Set bit 0 mov cr0, eax @@ -289,10 +289,12 @@ protected_mode: mov fs, ax mov gs, ax mov ss, ax ; Stack segment + mov esp, 0x00900000 ; Move stack pointer mov edx, 0x00050000 lea eax, [edx] + jmp $ call eax ; GDT @@ -313,7 +315,7 @@ gdt_data: dw 0 db 0 db 0x92 - db 0xcF + db 0xCF db 0 gdt_end: gdt_desc: @@ -322,4 +324,5 @@ gdt_desc: times 1024 - ($ - $$) db 0 +; Start at LBA 2 superblock: |