6SUB32.ASM

.model small
.data
        num1 dd 16321632H
        num2 dd 16271627H
        res  dd 0
.code
        mov ax,@data
        mov ds,ax

        mov ax,word ptr num1
        sub ax,word ptr num2
        mov word ptr res,ax

        mov ax,word ptr num1+2
        sbb ax,word ptr num2+2
        mov word ptr res,ax
 ends
end