微机原理习题答案(10)

MOV SS,AX

MOV BX,0 MOV CX,20 input:MOV AH,1 INT 21h CMP AL,39h JBE z1 ADD AL,9 z1: AND AL,0fh PUSH CX MOV CL,4 SAL AL,CL MOV DL,AL MOV AH,1 INT 21h CMP AL,39h JBE z2 ADD AL,9 z2: AND AL,0fh OR AL,DL

MOV buf1[BX],AL INC BX MOV DL,',' MOV AH,2