; assumptions about the starting envionment cpu 8086 org 0x0000 _startup: mov ax, cs mov ss, ax mov sp, 0x0000 ; <0x0010 is BIOS segment when relocated to HMA ; so we need a nop sled times (0x10 - ($-$$)) nop main: call hma_relocate call ivt_backup call debug_init int 0x2E mov ax,0x1234 int 0x2E call kprint16 .halt: hlt jmp .halt %include "hma.asm" %include "heap.asm" %include "intr.asm" %include "debug.asm" %include "kprintf.asm" _reloc_end: align 16 heap: