顺序与分支程序设计
CMP X,09H JLE AB1 ADD X,07H AB1:ADD X,30H MOV BL,X MOV BUF,BL AND AL,0F0H MOV CL,4 ROR AL,CL CMP AL,09H JLE AB2 ADD AL,07H AB2:ADD AL,30H MOV BUF+1,AL MOV AH,2 MOV DL,BUF+1 INT 21H MOV DL,BUF INT 21H L10:MOV AH,4CH INT 21H
CODE ENDS
END START
执行程序EXAM1－6·EXE，屏幕上显示结果： 3C
48
515
612
EXAM1－7
DATA
X
Y SEGMENT DB 0 DB 0
DUP(0)
STACK CU DB 0 BUF DB 2 DATA
ENDS STACK1 SEGMENT PARA DW 20H DUP(0)
STACK1 ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,SS:STACK1 START: MOV AX,DATA MOV DS,AX