微機原理課程設計--電壓報警器-全文預覽
【正文】 jmp startcledshow:。convertmov ah,0mov bx,5000dmul bxmov bx,255ddiv bxmov bx,axmov ax,5000dsub ax,bxjmp bin2deccon:cmp buff[0],3jb ledshow。.code setup_int macro int_irq,int_cs,int_ip push di push ds mov di,0 mov ds,di mov di,(int_irq)*4 mov word ptr ds:[di],int_ip mov word ptr ds:[di+2],int_cs pop ds pop di endm setup_ints macro int_irq,int_cs,int_ip setup_int int_irq,int_cs,int_ip setup_int (int_irq+1),int_cs,int_ip setup_int (int_irq+2),int_cs,int_ip setup_int (int_irq+3),int_cs,int_ip setup_int (int_irq+4),int_cs,int_ip setup_int (int_irq+5),int_cs,int_ip setup_int (int_irq+6),int_cs,int_ip setup_int (int_irq+7),int_cs,int_ip endmintxx proc farpush axcmp buff[0],3mov al,errstatinc alcmp al,8jb pass2 mov al,0pass2:mov byte ptr errstat,aljb passpass:pop axiretintxx endp.startup cli setup_ints 00h,seg intxx,offset intxx setup_ints 08h,seg intxx,offset intxx setup_ints 10h,seg intxx,offset intxx setup_ints 18h,seg intxx,offset intxxmov dx,806hmov al,10000000bout dx,al。如果電壓值大于3V，8086會控制使得數(shù)碼管顯示“ERROR”、點陣顯示“！”。滑動變阻器處于不同的阻值將會有不同的電壓輸入。電壓值可在七段數(shù)碼管顯示，點陣廣告屏
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