cseg segmentassume cs:csegstart: mov ax, 123 add ax, 456 ;123+456 call print ;print ax mov ax,4c00h int 21hprint proc near ;sub routine xor cx, cx mov bx, 10Q0: xor dx, dx p bx xor dx, 0e30h push dx inc cx cmp ax, 0 jnz Q0Q1: pop ax int 10h loop Q1 retprint endpcseg endsend start。