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x32 is now compiling

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This commit is contained in:
Alex
2023-03-04 21:17:19 +02:00
parent aa29c8a415
commit 5c91f23527
57 changed files with 1217 additions and 573 deletions
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61
Architecture/i686/runtime/crt1.asm
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@ -1,4 +1,5 @@
; Inspired From: https://github.com/MQuy/mos/blob/master/src/kernel/boot.asm
; https://wiki.osdev.org/Higher_Half_x86_Bare_Bones
; https://wiki.osdev.org/Higher_Half_x86_Bare_Bones_(Backup)
section .multiboot2
align 4096
HEADER_START:
@ -7,6 +8,33 @@ HEADER_START:
dd (HEADER_END - HEADER_START)
dd 0x100000000 - (HEADER_END - HEADER_START) - 0 - 0xE85250D6
align 8
MB2_INFO_REQUEST_TAG_START:
dw 1
dw 0
dd MB2_INFO_REQUEST_TAG_END - MB2_INFO_REQUEST_TAG_START
dd 1 ; Command Line
dd 2 ; Boot Loader Name
dd 3 ; Module
dd 4 ; Basic Memory Information
dd 5 ; BIOS Boot Device
dd 6 ; Memory Map
dd 7 ; VBE
dd 8 ; Framebuffer
dd 9 ; ELF Sections
dd 10 ; APM Table
dd 11 ; EFI 32-bit System Table Pointer
dd 12 ; EFI 64-bit System Table Pointer
; dd 13 ; SMBIOS
dd 14 ; ACPI Old
dd 15 ; ACPI New
dd 16 ; Network
dd 17 ; EFI Memory Map
dd 18 ; EFI Boot Services Notifier
dd 19 ; EFI 32-bit Image Handle Pointer
dd 20 ; EFI 64-bit Image Handle Pointer
dd 21 ; Load Base Address
MB2_INFO_REQUEST_TAG_END:
align 8
MB2_TAG_START:
dw 0
dw 0
@ -25,34 +53,41 @@ section .data
align 0x1000
BootPageTable:
dd 0x00000083
times ((KERNEL_PAGE_NUMBER) - 1) dd 0
dd 0x00000083
times (1024 - KERNEL_PAGE_NUMBER - 1) dd 0
times (KERNEL_PAGE_NUMBER - 2) dd 0
dd 0x00000083
dd 0x00000083
times (1024 - KERNEL_PAGE_NUMBER - 2) dd 0
section .text
_start:
mov word [0xb8000], 0x074C ; L
mov word [0xb8002], 0x076F ; o
mov word [0xb8004], 0x0761 ; a
mov word [0xb8006], 0x0764 ; d
mov word [0xb8008], 0x0769 ; i
mov word [0xb800a], 0x076E ; n
mov word [0xb800c], 0x0767 ; g
mov word [0xb800e], 0x072E ; .
mov word [0xb8010], 0x072E ; .
mov word [0xb8012], 0x072E ; .
mov word [0xb8F00], 0x072E ; .
mov ecx, (BootPageTable - KERNEL_VIRTUAL_BASE)
mov cr3, ecx
mov word [0xb8F02], 0x072E ; .
mov ecx, cr4
or ecx, 0x00000010 ; Set PSE in CR4
mov cr4, ecx
mov word [0xb8F04], 0x072E ; .
mov ecx, cr0
or ecx, 0x80000000 ; Set PG in CR0
mov cr0, ecx
mov word [0xb8F06], 0x072E ; .
lea ecx, [HigherHalfStart]
jmp ecx
HigherHalfStart:
mov word [0xb8F08], 0x072E ; .
mov dword [BootPageTable], 0
invlpg [0]
mov esp, KernelStack + KERNEL_STACK_SIZE
push eax ; Multiboot2 Magic