start.asm

; Note: interrupts are disabled at this point
[BITS 32]
SECTION .text
global start
start:
    mov esp, sys_stack     ; This points the stack to our new stack area
    jmp stublet

; This part MUST be 4byte aligned
ALIGN 4
mboot:
    MULTIBOOT_PAGE_ALIGN	equ 1<<0
    MULTIBOOT_MEMORY_INFO	equ 1<<1
    MULTIBOOT_HEADER_MAGIC	equ 0x1BADB002
    MULTIBOOT_HEADER_FLAGS	equ MULTIBOOT_PAGE_ALIGN | MULTIBOOT_MEMORY_INFO
    MULTIBOOT_CHECKSUM	equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
    EXTERN code, bss, end

    ; This is the Multiboot header.
    dd MULTIBOOT_HEADER_MAGIC
    dd MULTIBOOT_HEADER_FLAGS
    dd MULTIBOOT_CHECKSUM

SECTION .data

stublet:
    extern main
    push ebx
    push eax
    call main
    jmp $


; Reserve 8Kb of stack space
ALIGN 4096
SECTION .bss
global sys_stack_end
sys_stack_end:
    resb 8192
sys_stack: