计算1+...+100的结果
摘要：
data segmentsum dw 0data ends code segmentassume cs:code,ds:datamain:mov ax,datamov ds,axmov cl,100mov ax,0again:inc axadd sum,axdec cljnz againmov ax,sumsub ax, 13bahmov sum, axmov cl,4shr ax,cl ;take middle 4 bitsand ax,000fhadd ax,30hmov dl, almov ah, 2int 21hmov ax,sumand ax,000fh ;take upper 4 阅读全文