assume cs:code
data segment
DB 002H,000H,012H,000H,002H,000H,012H,010H,002H,010H,022H,030H,07FH,0F8H,062H,0C0H
DB 042H,010H,0A3H,000H,042H,011H,02EH,008H,042H,010H,022H,008H,042H,010H,021H,0F8H
DB 07FH,0F0H,024H,000H,002H,000H,004H,000H,002H,001H,0FFH,0F8H,002H,000H,004H,000H
DB 002H,000H,004H,000H,002H,000H,004H,000H,000H,000H,000H,000H,000H,000H,000H,000H
db 512 dup(0)
data ends
code segment
start:mov ax,data
mov ds,ax
mov si,0
mov di,64 ;空内存段的首地址
mov cx,64 ;data段总共32个字节
s: mov al,ds:[si]
call change
inc si
loop s
mov di,64 ;转化后的数据填充到内存段的首地址
call show
mov ax,4c00h
int 21h
;名称:change
;功能:利用移位的原理(利用标志寄存CF位)将每个字节的八位提取出来,放到ds:[di]
;参数:ds:[si]=字符串首地址,ds:[di]=转化后数据存放的地址
change: push cx
mov cx,8
chgs: shl al,1
pushf
pop bx
and bx,00000001b
mov ds:[di],bl
inc di
loop chgs
pop cx
ret
;名称:show
;功能:按字节显示字符,当为0时显示*,当为1时显示笑脸
;参数:ds:[di]指向字符串首地址
show:push ax
push cx
push si
mov ax,0b800h
mov es,ax
mov bx,5*160
mov si,2*10
mov cx,16 ;总共16行
shows0: push cx
mov cx,32 ;总共32列
shows1:mov al,ds:[di]
cmp al,1
jne next
mov byte ptr es:[bx+si],03h;为1则将此处变为红心
mov byte ptr es:[bx+si+1],04h
inc di
add si,2
loop shows1
add bx,160
mov si,2*10
pop cx
loop shows0
next:mov byte ptr es:[bx+si],0 ;为0则将此处变为0
inc di
add si,2
loop shows1
add bx,160
mov si,2*10
pop cx
loop shows0
pop si
pop cx
pop ax
ret
code ends
end start