roska/kernel
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This commit is contained in:
Lauren Toivanen 2023-06-18 05:37:30 +03:00
parent 79dcbb8393
commit 1a9201b529
Signed by: jt
GPG key ID: 9151B109B73ECAD5
11 changed files with 14 additions and 19 deletions
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48
start32.asm
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@ -1,48 +0,0 @@
format elf
use32
MULTIBOOT_PAGE_ALIGN equ (1 shl 0)
MULTIBOOT_MEMORY_INFO equ (1 shl 1)
MULTIBOOT_VIDEO_REQUEST equ (1 shl 2)
MULTIBOOT_AOUT_KLUDGE equ (1 shl 16)
MULTIBOOT_HEADER_MAGIC equ 0x1BADB002
MULTIBOOT_HEADER_FLAGS equ MULTIBOOT_PAGE_ALIGN or MULTIBOOT_MEMORY_INFO or MULTIBOOT_VIDEO_REQUEST
MULTIBOOT_CHECKSUM equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
.multiboot: align 4
dd MULTIBOOT_HEADER_MAGIC
dd MULTIBOOT_HEADER_FLAGS
dd MULTIBOOT_CHECKSUM
dd 0 ; header address
dd 0 ; load address
dd 0 ; load end address
dd 0 ; bss end address
dd 0 ; entry address
dd 0 ; video mode_type (0:fb, 1:txt) (set flags[2]!)
dd 1024 ; video width
dd 768 ; video height
dd 32 ; video depth
section '.bss' writable align 16
stack_bottom:
rb 16384
stack_top:
section '.text' executable
public _start
extrn kmain
_start:
; Setup stack
mov esp, stack_top
; Call the main kernel function.
push ebx
push eax
call kmain
@@:
cli
hlt
jmp @b