cpu 386 org 0x0000 section .text bits 16 start: mov eax,0x44332211 mov edx,0x88776655 shrd eax,edx,4 times 0xfff0-($-$$) db 0x90 ; NOP bits 16 jmp 0xf000:start db ' 04/04/15' db 0xFC ; 0000FFFE FC (Model ID byte) db 0x00 ; 0000FFFF 00 (location of checksum byte)