• Intel汇编语言程序设计(第7版)第四章编程练习题答案

    1. 大端序转成小端序

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib

.stack 4096

.data 
bigEndian BYTE 12h, 34h, 56h, 78h
littleEndian DWORD ?

Fmt BYTE "0x%08X", 0
Caption BYTE "Caption", 0
Buf BYTE 64 DUP(0)
.code 

start:
	mov eax, DWORD PTR [bigEndian]
	mov littleEndian, eax
	invoke wsprintf, OFFSET Buf, OFFSET Fmt, [littleEndian] 
	invoke MessageBox, NULL, OFFSET Buf,  OFFSET Caption, MB_OK

	invoke ExitProcess, 0
	ret
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30

    2. 交换数组元素对

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib
include msvcrt.inc
includelib msvcrt.lib

.stack 4096

.data 
Array 		BYTE 		11h, 22h, 33h, 44h, 55h, 66h, 77h, 88h
ArrayLen 		DWORD 		($ - Array) / SIZEOF WORD
TmpBuf		BYTE			0

Pause BYTE "pause", 0
Fmt BYTE "0x%02X ", 0
Buf BYTE 64 DUP(0)
.code 

start:
	mov ecx, ArrayLen
	xor ebx, ebx 
Exchange:
	mov al, [Array + ebx]
	mov TmpBuf, al				; 保存第1个数
	inc ebx 
	mov al, [Array + ebx]		; 保存第2个数
	dec ebx
	mov [Array + ebx], al		; 赋值第1个数
	inc ebx 
	mov al, TmpBuf		
	mov [Array + ebx], al		; 赋值第2个数
	inc ebx
	loop Exchange
	
	xor ebx, ebx
Print:
	mov al, [Array + ebx]
	invoke crt_printf, OFFSET Fmt, al 
	inc ebx
	cmp ebx, LENGTHOF Array
	jz Ending
	jmp Print
	
Ending:
	invoke crt_system, OFFSET Pause
	invoke ExitProcess, 0
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48
    • 49
    • 50
    • 51
    • 52
    • 53

    3. 数组元素间隔之和

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib
include msvcrt.inc
includelib msvcrt.lib

.stack 4096

.data 
Array 		DWORD 		0, 2, 5, 9, 10
ArrayLen 		DWORD 		($ - Array) / SIZEOF DWORD
TmpBuf		DWORD			0

Pause BYTE "pause", 0
Fmt BYTE "%d", 0
Buf BYTE 64 DUP(0)
.code 

start:
	mov ecx, ArrayLen
	xor edx, edx
	mov ebx, TYPE Array
SUMTWO:
	mov eax, [Array + ebx]
	mov TmpBuf, eax
	sub ebx, TYPE Array
	mov eax, [Array + ebx]
	sub TmpBuf, eax
	add edx, TmpBuf
	add ebx, TYPE Array
	loop SUMTWO
	
	invoke crt_printf, OFFSET Fmt, edx
Ending:
	invoke crt_system, OFFSET Pause
	invoke ExitProcess, 0
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43

    4. 将字数组复制到双字数组

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib
include msvcrt.inc
includelib msvcrt.lib

.stack 4096

.data 
wArray 		WORD		5, 9, 12, 31, 46, 68
ArrayLen 		DWORD 		($ - wArray) / SIZEOF WORD
dwArray		DWORD		32 DUP(0)
TmpBuf		DWORD			0

Pause BYTE "pause", 0
Fmt BYTE "%d ", 0
Buf BYTE 64 DUP(0)
.code 

start:
	mov ecx, ArrayLen
	xor eax, eax
	xor esi, esi
L0:
	movzx eax, WORD PTR [wArray + esi * TYPE wArray]
	mov [dwArray + esi * TYPE dwArray], eax  
	inc esi
	loop L0
	
	xor edi, edi
L1:
	invoke crt_printf, OFFSET Fmt, DWORD PTR [dwArray + edi * TYPE dwArray]
	inc edi
	cmp edi, ArrayLen
	jz Ending
	jmp L1
	
Ending:
	invoke crt_system, OFFSET Pause
	invoke ExitProcess, 0
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47

    5. 斐波那契数列

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib
include msvcrt.inc
includelib msvcrt.lib

FIBNUM = 7

.stack 4096

.data 
Fib0		DWORD 0
Fib1		DWORD 1
dwArray	DWORD 64 DUP(0)

Pause BYTE "pause", 0
Fmt BYTE "%d ", 0

.code 

start:
	mov eax, Fib1
	mov ecx, FIBNUM
	xor edi, edi
L0:
	mov [dwArray + edi * TYPE dwArray], eax
	add eax, Fib0
	mov ebx, Fib1
	mov Fib0, ebx
	mov Fib1, eax
	inc edi
	loop L0
	xor edi, edi
L1:
	invoke crt_printf, OFFSET Fmt, DWORD PTR [dwArray + edi * TYPE dwArray]
	inc edi
	cmp edi, FIBNUM
	jz Ending
	jmp L1
	
Ending:
	invoke crt_system, OFFSET Pause
	invoke ExitProcess, 0
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48
    • 49
    • 50

    6. 数组反向

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib
include msvcrt.inc
includelib msvcrt.lib

.stack 4096

.data 
dwArray 	DWORD 15, 21, 34, 49, 52, 98
ArrayLen  DWORD LENGTHOF dwArray - 1

Pause BYTE "pause", 0
Fmt BYTE "%d ", 0

.code 

start:
	mov edi, ArrayLen
	xor esi, esi 
	mov ecx, 3
L0:
	mov eax, [dwArray + edi * SIZEOF DWORD]
	xchg [dwArray + esi * SIZEOF DWORD], eax
	xchg [dwArray + edi * SIZEOF DWORD], eax
	dec edi
	inc esi 
	loop L0
	
L3:
	xor edi, edi
L1:
	invoke crt_printf, OFFSET Fmt, DWORD PTR [dwArray + edi * TYPE dwArray]
	inc edi
	cmp edi, LENGTHOF dwArray
	jz Ending
	jmp L1
	
Ending:
	invoke crt_system, OFFSET Pause
	invoke ExitProcess, 0
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48

    7. 将字符串复制为反向

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib
include msvcrt.inc
includelib msvcrt.lib

.stack 4096

.data 
source BYTE "This is the source string", 0
srcLen DWORD ($ - source) / TYPE source  - 2
target BYTE SIZEOF source DUP('$')

Pause BYTE "pause", 0
Fmt BYTE "%c", 0

.code 

start:
	mov ecx, srcLen
	xor edi, edi
L0:
	mov al, [source + ecx]
	mov [target + edi], al
	inc edi
	loop L0
	mov al, [source + ecx]
	mov [target + edi], al
	inc edi
	mov BYTE PTR [target + edi], 0
L3:
	xor edi, edi
L1:
	invoke crt_printf, OFFSET Fmt, BYTE PTR [target + edi * TYPE target]
	inc edi
	cmp edi, LENGTHOF target
	jz Ending
	jmp L1
	
Ending:
	invoke crt_system, OFFSET Pause
	invoke ExitProcess, 0
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48
    • 49

    8. 数组元素位移

    .386
.model flat, stdcall
option casemap:none 

include windows.inc 
include kernel32.inc
includelib kernel32.lib
include user32.inc
includelib user32.lib
include msvcrt.inc
includelib msvcrt.lib

.stack 4096

.data 
dwArray 	DWORD 10, 20, 30, 40, 50, 60
AryLen	DWORD LENGTHOF dwArray - 1

TmpCh	DWORD  0

Pause BYTE "pause", 0
Fmt BYTE "%d ", 0

.code 

start:
	mov ecx, AryLen
	xor edi, edi
	; 保存最后一个数字
	mov ebx, [dwArray + TYPE dwArray * ecx]
	mov TmpCh, ebx
	dec ecx
L0:
	mov eax, [dwArray + TYPE dwArray * ecx]
	inc ecx 
	mov [dwArray + TYPE dwArray * ecx], eax
	dec ecx 
	loop L0
	mov eax, [dwArray + TYPE dwArray * ecx]
	inc ecx
	mov [dwArray + TYPE dwArray * ecx], eax
	dec ecx
	mov eax, TmpCh
	mov [dwArray + TYPE dwArray * ecx], eax
	
	xor edi, edi
L1:
	invoke crt_printf, OFFSET Fmt, BYTE PTR [dwArray + edi * TYPE dwArray]
	inc edi
	cmp edi, LENGTHOF dwArray
	jz Ending
	jmp L1
	
Ending:
	invoke crt_system, OFFSET Pause
	invoke ExitProcess, 0
end start

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48
    • 49
    • 50
    • 51
    • 52
    • 53
    • 54
    • 55
    • 56
    • 57

    (完)

  • 相关阅读:
    JavaScript代码在网页的使用方式及注意事项
    Spark基础：Scala内建控制结构
    mysql中事务的基本介绍，提交事务和事务回滚的基本介绍，事务的隔离性的详细说明
    配置tomcat可用的代理访问ArcGIS Enterprise/GeoScene Enterprise加密服务
    网页布局的方法有哪些？
    k8s笔记21--prometheus 监控 nginx ingress
    计算机毕业设计springboot基于SpringBoot的窈窕之求食单平台的设计与实现9u8k6源码+系统+程序+lw文档+部署
    为什么需要对jvm进行优化,jvm运行参数之标准参数
    SpringBoot定时任务 - 什么是ElasticJob？如何集成ElasticJob实现分布式任务调度？
    高效操作Golang字符串实战教程
  • 原文地址：https://blog.csdn.net/qq_37232329/article/details/132909797