diff options
Diffstat (limited to 'src/kernel/boot.asm')
| -rw-r--r-- | src/kernel/boot.asm | 91 |
1 files changed, 44 insertions, 47 deletions
diff --git a/src/kernel/boot.asm b/src/kernel/boot.asm index 0f967b7..b1f6018 100644 --- a/src/kernel/boot.asm +++ b/src/kernel/boot.asm @@ -1,63 +1,60 @@ -; The first section of the ELF will be used to locate the entry point. -section .ezlocation -dd _start +section .start_location + dd _start -; Set stack +; Initialize stack section .bss -align 16 -global STACK_BOTTOM -global STACK_TOP - -STACK_BOTTOM: -resb 0x4000 -STACK_TOP: + align 16 + global STACK_BOTTOM + global STACK_TOP + STACK_BOTTOM: + resb 0x4000 + STACK_TOP: section .text + global _start + extern kernel_main + _start: + mov esp, STACK_TOP + push ebx + push eax -global _start -extern kernel_main -_start: - mov esp, STACK_TOP - push ebx - push eax - - call kernel_main - cli + call kernel_main + cli -hlt_L: - hlt - jmp hlt_L + hlt_L: + hlt + jmp hlt_L -%include "src/kernel/gdt/gdt.asm" + %include "src/kernel/gdt/gdt.asm" -%include "src/kernel/interrupts/idt.asm" + %include "src/kernel/interrupts/idt.asm" -%include "src/kernel/interrupts/isr.asm" + %include "src/kernel/interrupts/isr.asm" -%include "src/kernel/interrupts/irq.asm" + %include "src/kernel/interrupts/irq.asm" -%include "src/kernel/interact.asm" + %include "src/kernel/interact.asm" -global switch_to_user -extern test_user -switch_to_user: - sti - mov ax, 0x23 - mov ds, ax - mov es, ax - mov fs, ax - mov gs, ax + global switch_to_user + extern test_user + switch_to_user: + sti + mov ax, 0x23 + mov ds, ax + mov es, ax + mov fs, ax + mov gs, ax - mov eax, esp - push 0x23 - push eax - pushf - push 0x1B - push test_user - iret + mov eax, esp + push 0x23 + push eax + pushf + push 0x1B + push test_user + iret section .sizedetect -global ASM_KERNEL_END -ASM_KERNEL_END: - ; Kernel size detection + global ASM_KERNEL_END + ASM_KERNEL_END: + ; Kernel size detection |