微機課程設計--簡易電子廣告牌設計(編輯修改稿)
2025-02-14 15:25 本頁面
【文章內(nèi)容簡介】 色的標志CHARSAVE DB 18h,20h,28h,30h,38h,40h,48h,50h,58h,60h。19在BUFF中點陣偏移量COUNTTMP DW 0 。鍵盤輸入數(shù)字變量BUFF DB 8H,18H,3H,41H,0C1H,3FH,0H,3CH,0H,78H,48H,48H,0FFH,48H,48H,78H,0H,0H,3CH,42H,42H,7EH,0H,0H,0h,0h,3ch,42h,42h,3ch,0h,0h,0H,0H,0H,0feh,40h,0h,0h,0h,0H,22h,52h,4ah,46h,22h,0h,0h,0h,0h,6ch,92h,82h,44h,0h,0h,0h,4h,4h,7fh,24h,14h,0ch,0h,0h,0h,5ch,52h,52h,76h,0h,0h,0h,0h,4ch,92h,92h,7ch,0h,0h,0h,0h,60h,50h,4eh,40h,0h,0h,0h,0h,6ch,92h,92h,6ch,0h,0h,0h,0h,7ch,92h,92h,64h,0h,0h 。點陣的取模量timebuf db 0H,0FEH,92H,92H,92H,92H,0FEH,0H,0H,0FFH,0A9H,0A8H,0A8H,0F8H,7H,1H,8H,18H,3H,41H,0C1H,3FH,0H,3CH 。點陣取模量2DATA ENDS。*********************************************************CODE SEGMENTASSUME CS:CODE,DS:DATA。*************************代碼段***************************。在屏幕上顯示提示信息START: MOV AX,DATA MOV DS,AX MOV DX,OFFSET MESS MOV AH,09 INT 21H 。顯示提示信息 MOV addcolor,protly 。先顯示紅色 CALL Int8253 。調(diào)用8253初始化字程序agn: mov dx,io0809a 。啟動A/D轉(zhuǎn)換器, A/D中的數(shù)據(jù)轉(zhuǎn)化成滾動顯示速度 out dx,al in al,dx 。從A/D轉(zhuǎn)換器輸入數(shù)據(jù) mov ah,0 shl ax,1 add ax,30h mov cx,ax 。進行數(shù)據(jù)處理，防止?jié)L動速度過快或者過慢d2: mov ah,01h push cx mov cx,0008h 。點陣一次顯示8列 mov si,offset Addweinext: mov al,[si] test mflag,01h 。判斷是顯示哪段文字 jnz flagdan mov bx,offset buff jmp ghflagdan:mov bx,offset timebuf gh: add bx,count xlat 。得到第一列的取模碼 mov dx,proth out dx,al mov al,ah mov dx,addcolor out dx,al 。顯示第一列 shl ah,01 inc si call delaylong 。列延時,時間長則字符每列不連續(xù),短則亮度低loop next pop c
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