y2.asm

汇编计数器实例

data segment
x dw 4
y dw ?
data ends
code segment
assume cs:code,ds:data
start:
mov ax,data
mov ds,ax
mov ax,x
mov cl,2
sal ax,cl
add ax,x
add ax,8
sar ax,cl
mov y,ax
mov ah,4ch
int 21h
code ends
end start