代碼輸入器課程設(shè)計說明書-資料下載頁
2025-06-03 04:06本頁面
【正文】 ffset pc_2 。第三排鍵盤 cmp bh,04h jl next1 jnz next jmp wr next: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 f1 key_press proc 。鍵盤按下 mov bl,bh mov bh,00h call shift_l mov al,00h mov dx,302h out dx,al 18 mov al,[si+bx] mov dx,301h out dx,al mov si,offset temp mov [si],al ret key_press endp enter proc ?；剀嚤P mov si,offset temp1 mov cx,4 mov bx,3 bb1:mov dl,[si+bx] dec bx mov ah,02h int 21h loop bb1 jmp exit enter endp input 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 ret input endp show 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,00h bbb: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 delay1 19 loop bbb pop bx pop ax ret show endp shift_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,2 bsss:mov bl,al mov ah,[si+bx] inc bx mov [si+bx],ah dec al loop bsss pop bx pop cx pop ax pop si ret shift_l endp delay proc 。按鍵延時 push ax push bx push cx mov cx,0 dela:mov bx,2021 dela1:dec bx jnz dela1 loop dela pop cx pop bx pop ax ret delay endp 20 delay1 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 ret delay1 endp shift_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,2 bsss1: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 ret shift_e endp exit:mov ah,4ch 。退出返回到 dos 界面 int 21h code ends end beg
畢業(yè)設(shè)計相關(guān)推薦
鄂ICP備17016276號-1