diff options
| author | EmulatedSeasons <89668582+EmulatedSeasons@users.noreply.github.com> | 2024-04-05 17:24:49 -0400 |
|---|---|---|
| committer | EmulatedSeasons <89668582+EmulatedSeasons@users.noreply.github.com> | 2024-04-05 17:24:49 -0400 |
| commit | 5fab9326c00aeda6647beab65e6a61f9954b9cfd (patch) | |
| tree | 75a954aa59332b3ceb2e9e3a40c0c780b964483d /kernel/arch/i386/boot.asm | |
| parent | ec7e798c70e54cf10e6dddf465cb7f741f760e79 (diff) | |
started writing paging
Diffstat (limited to 'kernel/arch/i386/boot.asm')
| -rw-r--r-- | kernel/arch/i386/boot.asm | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/kernel/arch/i386/boot.asm b/kernel/arch/i386/boot.asm index 494d3ba..084bffb 100644 --- a/kernel/arch/i386/boot.asm +++ b/kernel/arch/i386/boot.asm @@ -22,6 +22,13 @@ stack_bottom: resb 16384 ; 16 KiB
stack_top:
+; temporary paging tables
+align 4
+boot_page_directory:
+ resb 4096
+boot_page_table:
+ resb 4096
+
section .text
global _start:function (_start.end - _start)
@@ -34,19 +41,12 @@ _start: push eax
push ebx
- ; setup paging (to map kernel to the higher half)
- ;mov eax, 0
- ;mov cr3, eax
- ;mov eax, cr0
- ;or eax, 0x80000001
- ;mov cr0, eax
-
; get multiboot header data (for memory map)
- extern multiboot_main
- call multiboot_main
+ ;extern multiboot_main
+ ;call multiboot_main
- extern _init
- call _init
+ ;extern _init
+ ;Scall _init
lgdt [gdt_descriptor]
jmp 0x08:.gdt_jmp
@@ -62,6 +62,15 @@ _start: .gdt_jmp2:
+
+
+ ; setup paging (to map kernel to the higher half)
+ ;mov eax, 0
+ ;mov cr3, eax
+ ;mov eax, cr0
+ ;or eax, 0x80000001
+ ;mov cr0, eax
+
; setup idt
extern idt_setup
call idt_setup
|