求汇编实现三位十进制的加法

hexibin proc near

mov ax, bx

mov cx, 1h ;set 1 into cx as initial

xor bx, bx ;set result into bx

loop2:

mov dl, 10d ;set 10d to bl

div dl ;ax div bl

mov dl, ah ;save the remainder in dl

xor ah, ah ;set ah to 00h

cbw ;change al(quotient) to type word

mov temp, ax

xor ax, ax

mov al,dl ;save the remainder back to al

cbw ;change it to word

mul cx ;mul cx

add bx, ax ;add it to old remainder

mov ax, cx ; make cx mul by 10h

mov dx, 10h

mul dx

mov cx, ax

mov ax, temp

cmp ax, 0d ;compare with zero

je exit2 ; if equ zero then exit

jne loop2 ;else save it back to the stack

exit2:

ret

hexibin endp

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binihex proc near