代碼輸入器課程設(shè)計說明書(非常好)-資料下載頁
2025-07-21 17:56本頁面
【正文】 盤 cmp bh,04h jl next1 jnz next jmp wrnext:cmp bh,05h 。第17鍵盤 jnz wr call enter jmp wr next1:call key_press mov si,offset pcA_2 call input wr: call delay jmp f1key_press proc 。鍵盤按下 mov bl,bh mov bh,00h call shift_l mov al,00h mov dx,302h out dx,al mov al,[si+bx] mov dx,301h out dx,al mov si,offset temp mov [si],al retkey_press endpenter proc ?；剀嚤P mov si,offset temp1 mov cx,4 mov bx,3bb1:mov dl,[si+bx] dec bx mov ah,02h int 21hloop bb1 jmp exitenter endpinput proc 。輸入到顯示在屏幕上的值 call shift_e mov al,[si+bx] mov si,offset temp1 mov [si],al retinput endpshow proc 。顯示在發(fā)光二極管 push ax push bx mov si,offset temp mov cx,4 mov bx,0 mov ah,00hbbb:mov al,ah mov dx,302h out dx,al mov al,[si+bx] inc bx mov dx,301h out dx,al add ah,10h call delay1loop bbb pop bx pop ax ret show endpshift_l proc 。二極管的燈左移動 push si push ax push cx push bx mov si,offset temp mov cx,3 mov bx,2 mov al,2bsss:mov bl,al mov ah,[si+bx] inc bx mov [si+bx],ah dec alloop bsss pop bx pop cx pop ax pop si retshift_l endp delay proc 。按鍵延時 push ax push bx push cx mov cx,0 dela:mov bx,2000 dela1:dec bx jnz dela1 loop dela pop cx pop bx pop ax retdelay endpdelay1 proc 。燈光延時 push ax push bx push cx mov cx,10000 dela0:mov bx,500 dela10:dec bx jnz dela10 loop dela0 pop cx pop bx pop ax retdelay1 endpshift_e proc 。顯示在屏幕上的值的移動 push si push ax push cx push bx mov si,offset temp1 mov cx,3 mov bx,2 mov al,2bsss1:mov bl,al mov ah,[si+bx] inc bx mov [si+bx],ah dec al loop bsss1 pop bx pop cx pop ax pop si retshift_e endpexit:mov ah,4ch 。退出返回到dos界面 int 21hcode endsend beg20
電大資料相關(guān)推薦
鄂ICP備17016276號-1