汇编语言实验3

mov ax,Y mov dx,Y+2 sub ax,b sub dx,b+2 sub Z+2,dx sub Z,ax mov ax,Z mov dx,Z+2 mov W,ax mov W+2,dx mov ax,4c00h int 21h code ends

end start 5.

assume cs:code,ds:data data segment x dw 1h y dw 0123h z dw 0234h v dw 0345h data ends

code segment start:

mov ax,data mov ds,ax mov ax,x imul y mov cx,ax mov bx,dx mov ax,z cwd add cx,ax add bx,dx sub cx,540 sbb bx,0 mov ax,v cwd sub ax,cx sbb dx,bx idiv x mov ax,4c00h int 21h code ends

end start 6.

assume cs:code,ds:data data segment

NUM1 DD 2A8B7654H NUM2 DW 5ABCH NUM3 DW 0H NUM4 DW 0H data ends code segment start:

mov ax,data mov ds,ax

mov ax,word ptr NUM1 mov dx,word ptr NUM1+2 div NUM2 mov NUM3,ax mov NUM4,dx mov ax,4c00h int 21h code ends end start

7.

assume cs:code code segment; start:

mov bx,000Fh mov cx,000Dh mov al,bl mov ah,0 div cl mov ah,0 shl ax,1 mov dx,ax mov ax,4c00h int 21h code ends end start 8.

assume cs:code code segment start:

mov ax,123bh mov ds,ax