微機(jī)原理課程設(shè)計(jì)--音樂演奏-資料下載頁
2025-01-18 15:00本頁面
【正文】 mov ds,axbegin: mov ah,0 。設(shè)置顯示方式用于清屏 mov al,3 int 10h lea dx,blank 。顯示blank緩存區(qū)中的字符 mov ah,9 int 21h lea dx,wele 。顯示welcone緩存區(qū)中的字符 mov ah,09h int 21h lea dx,we1 。顯示we1緩存區(qū)中的字符 mov ah,09h int 21h lea dx,we2 。顯示we2緩存區(qū)中的字符 mov ah,09h int 21h lea dx,we3 。顯示we3緩存區(qū)中的字符 mov ah,09h int 21h lea dx,we4 。顯示we4緩存區(qū)中的字符 mov ah,09h int 21h lea dx,we5 。顯示we5緩存區(qū)中的字符 mov ah,09h int 21h lea dx,we6 。顯示we6緩存區(qū)中的字符 mov ah,09h int 21h lea dx,we7 。顯示we7緩存區(qū)中的字符 mov ah,09h int 21h lea dx,wele1 。顯示wele1緩存區(qū)中的字符 mov ah,09h int 21h mov ah,0 。從鍵盤接收字符返回al為字符碼，ah為掃描碼 int 16h cmp ah,01h jz stop cmp al,39。139。 je music1 cmp al,39。239。 je music2 cmp al,39。339。 je music3music1: mov cx,39 lea bp,music_lenth lea si,music_freq jmp load1 music2: mov cx,115 lea bp,music_lenth1 lea si,music_freq1 jmp load2music3: mov cx,128 lea bp,music_lenth2 lea si,music_freq2load3: lea dx,playing2 。顯示playing緩存區(qū)中的字符 mov ah,9 int 21h jmp musicload1: lea dx,playing 。顯示playing緩存區(qū)中的字符 mov ah,9 int 21h jmp musicload2: lea dx,playing1 。顯示playing緩存區(qū)中的字符 mov ah,9 int 21h music: push cx mov di,[si] call play add si,2 add bp,2 pop cx loop musicbegin1: jmp beginstop: mov ah,0 mov al,00 int 10h mov ax,4c00h int 21hplay proc push ax push cx mov ah,1 int 16h cmp al,39。s39。 je begin1 cmp al,39。q39。 je stop cmp di,0 je nopen mov al,0b6h out 43h,al mov dx,12h mov ax,34DCH div di out 42h,al mov al,ah out 42h,al in al,61h mov ah,al 。保存端口b的狀態(tài) or al,03h out 61h,al 。將PB0，PB1設(shè)為 mov al,[bp] nopen: mov cx,20hdelay: dec cx cmp cx,00h jne delay dec al cmp al,00h jne delay mov al,ah out 61h,al pop cx pop ax retplay endpcode endsend start
環(huán)評(píng)公示相關(guān)推薦
鄂ICP備17016276號(hào)-1