王爽 汇编 实验14

assume cs:code,ds:datadata segmentdb "YY/MM/DD HH:MM:SS"db 9,8,7,4,2,0data endscode segmentstart:mov ax,datamov ds,axmov cx,6mov si,0;作为data段索引,+3    mov di,17;作为CMOS索引,+1s1:push cxmov al,[di]out 70h,alin al,71h;在CMOS获取到相应数据的BCD码mov ah,almov cl,4shr ah,cland al,00001111badd al,30hadd ah,30hmov [si],ahmov [si+1],aladd si,3add di,1pop cxloop s1mov ax,datamov ds,axmov si,0;+1mov cx,17mov ax,0b800hmov es,axmov di,160*13+32*2;+2s2:mov al,[si]mov es:[di],almov al,02hmov es:[di+1],alinc siadd di,2loop s2mov ax,4c00hint 21hcode endsend start