?? 算術運算與數制轉換-水平移位.asm
字號:
DATAREA SEGMENT
X DB 0
DATAREA ENDS
MYPROG SEGMENT
ASSUME CS:MYPROG,DS:DATAREA
START: MOV AX,DATAREA
MOV DS,AX
MOV BX,0
MOV CX,4
MOV AH,01H
LP1: INT 21H
SUB AL,30H
CMP AL,09H
JLE P1
sub AL,07H
P1: SHL BX,1
SHL BX,1
SHL BX,1
SHL BX,1
ADD BL,AL
LOOP LP1
INT 21H
MOV X,AL
MOV DX,0
MOV CX,4
LP2: INT 21H
SUB AL,30H
CMP AL,09H
JLE P2
SUB AL,07H
P2: SHL DX,1
SHL DX,1
SHL DX,1
SHL DX,1
ADD DL,AL
LOOP LP2
MOV AL,X
CMP AL,2BH
JLE P3
SUB BX,DX
JMP P4
P3:ADD BX,DX
P4:MOV DX,BX
MOV CL,13
SHR DX,CL
ADD DL,30H
MOV AH,02H
INT 21H
MOV DX,BX
MOV CL,12
SHR DX,CL
AND DL,07H
ADD DL,30H
INT 21H
MOV DX,BX
MOV CL,9
SHR DX,CL
AND DL,07H
ADD DL,30H
INT 21H
MOV DX,BX
MOV CL,6
SHR DX,CL
AND DL,07H
ADD DL,30H
INT 21H
MOV DX,BX
MOV CL,3
SHR DX,CL
AND DL,07H
ADD DL,30H
INT 21H
MOV DX,BX
AND DL,07H
ADD DL,30H
INT 21H
MOV AH,4CH
INT 21H
MYPROG ENDS
END START
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