.sect .text; .sect .rom; .sect .data; .sect .bss .sect .text .define .ngi ! #bytes in ax .ngi: pop bx ! return address cmp ax,2 jne 1f pop cx neg cx push cx jmp bx 1: cmp ax,4 jne 9f pop dx pop ax neg ax neg dx sbb ax,0 push dx push ax jmp bx 9: .extern EODDZ .extern .trp mov ax,EODDZ push bx jmp .trp