DATA SEGMENT
DA1 DB 30 DUP(?)
DA2 DW 1456H,789AH
DA3 DW DA2
DATA ENDS
┇
┇
MOV BX,DA3
上述指令执行后,BX中的内容是()。
DATA SEGMENT
DA1 DB 30 DUP(?)
DA2 DW 1456H,789AH
DA3 DW DA2
DATA ENDS
┇
┇
MOV BX,DA3
上述指令执行后,BX中的内容是()。
有如下程序:
START: MOV BL,67H
MOV AL,BL
MOV CL,4
SHR AL,CL
MOV BH,AL
OR BH,30H
MOV AL,BL
AND AL,OFH
MOV BL,AL
OR BL,30H
INT 3
运行上面程序后,BH=(),BL=()
阅读程序,说明程序执行后BH,BL,AL,CL的值;
MOV BL, 72H
MOV AL, BL
MOV CL, 4
SHR BL, CL
OR BL, 30H
MOV BH, BL
AND AL, OFH
OR AL, 30H
MOV BL, AL
INT 3
BH=(),BL=(),AL=(),CL=()
源程序如下:
MOV AL,0B7H
AND AL,0DDH
XOR AL,81H
OR AL,33H
JP LAB1
JMP LAB2
源程序如下:
MOV AL,0B7H
AND AL,0DDH
XOR AL,81H
OR AL,33H
JP LAB1
JMP LAB2
试问:执行程序后AL=();程序将转到哪一个地址执行:()。
已知AX=0BBCCH,CF=1,以下三条指令执行后,AX中内容是:()
OR AX,3
CLC
RCL AX,1
设初值AX=6264H,CX=0004H,在执行下列程序段后AX=()
AND AX, AX
JZ DONE
SHL CX, 1
ROR AX, CL
DONE: OR AX, 1234H
执行完下列程序段后,AX=()
MOV DX,8F70H
MOV AX,54EAH
OR AX,DX
AND AX,DX
NOT AX
XOR AX,DX
ROR AX, 1
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
You need to serialize an object of type List<int> in a binary format.
The object is named data.
Which code segment should you use?()
执行以下指令后:
MOV AL,2BH
OR AL,0FH
AL的内容为:()
执行以下指令后:
MOV AL,56H
OR AL,0FH
AL的内容为:()
已知以下数据段:
DATA SEGMENT
VAR1 DB 10 dup(2, 3 dup(?))
VAR2 DW VAR3, VAR1, 10h
VAR3 DB 10, ?, 12 dup(?)
DATA ENDS
数据段DATA中定义的三个变量共占用()字节空间。
已知以下数据段:
DATA SEGMENT
VAR1 DB 8 dup (2, 3 dup(?))
VAR2 DW VAR3, VAR1, 10h
VAR3 DW 10, ?, 8 dup(?)
DATA ENDS
数据段DATA中定义的三个变量共占用()字节空间。
阅读下面的程序,回答问题
DATA SEGMENT
BUF DB '1234'
N=$-BUF
BCD DB N DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX
LEA SI,BUF
MOV CX,N
LEA DI,BCD+N-1
LOOP1:MOV AL,[SI]
SUB AL,30H
MOV [DI],AL
INC SI
DEC DI
DEC CX
JNE LOOP1
MOV AH,4CH
INT 21H
CODE ENDS
END START
阅读下面的程序,回答问题
DATA SEGMENT
BUF DB '1234'
N=$-BUF
BCD DB N DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX
LEA SI,BUF
MOV CX,N
LEA DI,BCD+N-1
LOOP1:MOV AL,[SI]
SUB AL,30H
MOV [DI],AL
INC SI
DEC DI
DEC CX
JNE LOOP1
MOV AH,4CH
INT 21H
CODE ENDS
END START
阅读下面的程序,回答问题
DATA SEGMENT
BUF DB '1234'
N=$-BUF
BCD DB N DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX
LEA SI,BUF
MOV CX,N
LEA DI,BCD+N-1
LOOP1:MOV AL,[SI]
SUB AL,30H
MOV [DI],AL
INC SI
DEC DI
DEC CX
JNE LOOP1
MOV AH,4CH
INT 21H
CODE ENDS
END START
阅读下面的程序,回答问题
DATA SEGMENT
BUF DB '1234'
N=$-BUF
BCD DB N DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX
LEA SI,BUF
MOV CX,N
LEA DI,BCD+N-1
LOOP1:MOV AL,[SI]
SUB AL,30H
MOV [DI],AL
INC SI
DEC DI
DEC CX
JNE LOOP1
MOV AH,4CH
INT 21H
CODE ENDS
END START
阅读下面的程序,回答问题
DATA SEGMENT
BUF DB '1234'
N=$-BUF
BCD DB N DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX
LEA SI,BUF
MOV CX,N
LEA DI,BCD+N-1
LOOP1:MOV AL,[SI]
SUB AL,30H
MOV [DI],AL
INC SI
DEC DI
DEC CX
JNE LOOP1
MOV AH,4CH
INT 21H
CODE ENDS
END START
某数据段如下:
DATA SEGMENT
ORG 20H
X DB 12H,’AB’
Y DW 789AH
DATA ENDS Y单元的偏移地址是()。
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