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- MBALIGN equ 1<<0 ; align loaded modules on page boundaries
- MEMINFO equ 1<<1 ; provide memory map
- FLAGS equ 0 ; this is the Multiboot 'flag' field
- MAGIC equ 0x1BADB002 ; 'magic number' lets bootloader find the header
- CHECKSUM equ -(MAGIC + FLAGS) ; checksum of above, to prove we are multiboot
- section .multiboot
- align 4
- dd MAGIC
- dd FLAGS
- dd CHECKSUM
- section .bss
- resb 2*4096 ; 0x2000
- stack_top:
- section .text
- _start:
- main:
- xor eax, eax
- xor ecx, ecx
- xor edx, edx
- xor ebx, ebx
- mov esp, stack_top
- xor ebp, ebp
- xor esi, esi
- xor edi, edi
- pxor xmm0, xmm0
- ; make space for memory operations
- sub esp, 32
- push 0
- popf
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