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ARM 指令 关于DCD和SPACE的一个问题
Golden_Chen
2009-04-16 01:18:21
语句如下:
FiqStackSpace SPACE FIQ_Stack_Legth
FiqStack DCD FiqStackSpace + FIQ_Stack_Legth
最后一条语句,DCD的后面跟FiqStackSpace + FIQ_Stack_Legth,
DCD后面的FiqStackSpace,表示一串空字符,这好理解
但是再上FIQ_Stack_Legth,就不明白了,WHY?
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ARM 指令 关于DCD和SPACE的一个问题
语句如下: FiqStackSpace SPACE FIQ_Stack_Legth FiqStack DCD FiqStackSpace + FIQ_Stack_Legth 最后一条语句,DCD的后面跟FiqStackSpace + FIQ_Stack_Legth, DCD后面的FiqStackSpace,表示一串空字符,这好理解 但是再上FIQ_Stack_Legth,就不明白了,WHY?
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gzp20
2009-11-17
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很有用啊
OneOnce
2009-11-13
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FiqStackSpace SPACE FIQ_Stack_Legth
FiqStack DCD FiqStackSpace + FIQ_Stack_Legth
分配一直空间,起始地址是:FIQ_Stack_Legth ,空间大小FiqStackSpace + FIQ_Stack_Legth(其实地址加偏移量或者说长度)。
就跟C中申请内存一样:
PBYTE p;
p = (PBYTE)malloc(100);
lzycome
2009-11-12
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ldr r0,=XX 此时的 XX 是地址(伪指令)
ldr r0,XX 此时的 XX 是值
Golden_Chen
2009-04-20
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{Label} DCD expr 表示分配一段字内存,并用expr初始化
上楼说FiqStackSpace+ FIQ_Stack_Legth 是一个地址值,那编译时如何区分地址值和初始化值的?
这一点比较迷糊。
liaifeilove
2009-04-16
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FiqStackSpace是标号,相当与地址,实际上就是在FiqStackSpace SPACE FIQ_Stack_Legth 这个语句给分配的空间的首地址,FiqStackSpace+ FIQ_Stack_Legth 是这个地址空间的结束地址,将FiqStack指向这个地址,当做栈的顶部,该栈向下生长,长度FIQ_Stack_Legth
ARM
指令
集 肯定可以下载
前言...............................................................................................................................................................i 目录...............................................................................................................................................................I
ARM
7TDMI(-S)
指令
集及汇编....................................................................................................................1
ARM
处理器寻址方式..........................................................................................................................2 寄存器寻址...................................................................................................................................2 立即寻址.......................................................................................................................................2 寄存器偏移寻址............................................................................................................................2 寄存器间接寻址............................................................................................................................3 基址寻址.......................................................................................................................................3 多寄存器寻址...............................................................................................................................4 堆栈寻址.......................................................................................................................................4 块拷贝寻址...................................................................................................................................5 相对寻址.......................................................................................................................................5
指令
集介绍...........................................................................................................................................7
ARM
指令
集.................................................................................................................................7
指令
格式...............................................................................................................................7 第2 个操作数................................................................................................................7 #immed_8r ...........................................................................................................7 Rm..........................................................................................................................8 Rm,shift..................................................................................................................8 条件码............................................................................................................................9
ARM
存储器访问
指令
........................................................................................................ 11 LDR 和STR ........................................................................................................ 11 LDM 和STM.......................................................................................................14 SWP .....................................................................................................................17
ARM
数据处理
指令
............................................................................................................19 数据传送
指令
..............................................................................................................20 MOV ............................................................................................................20 MVN ............................................................................................................20 算术逻辑运算
指令
......................................................................................................20 ADD.............................................................................................................20 SUB..............................................................................................................21 RSB..............................................................................................................21 ADC .............................................................................................................21 SBC..............................................................................................................21 RSC..............................................................................................................22 AND.............................................................................................................22 ORR..............................................................................................................22 EOR..............................................................................................................22 比较
指令
......................................................................................................................23 CMP.............................................................................................................23 CMN.............................................................................................................23 TST...............................................................................................................24 TEQ..............................................................................................................24 乘法
指令
......................................................................................................................25 MUL.............................................................................................................25 MLA.............................................................................................................25 UMULL........................................................................................................25 UMLAL........................................................................................................26 SMULL........................................................................................................26 SMLAL........................................................................................................26
ARM
跳转
指令
....................................................................................................................27 B...........................................................................................................................27 BL.........................................................................................................................27 BX........................................................................................................................27
ARM
协处理器
指令
............................................................................................................28 CDP......................................................................................................................28 LDC......................................................................................................................29 STC ......................................................................................................................29 MCR.....................................................................................................................30 MRC.....................................................................................................................30
ARM
杂项
指令
....................................................................................................................31 SWI ......................................................................................................................31 MRS.....................................................................................................................32 MSR.....................................................................................................................33
ARM
伪
指令
........................................................................................................................34 ADR.....................................................................................................................35 ADRL...................................................................................................................35 LDR......................................................................................................................36 NOP......................................................................................................................37 Thumb
指令
集.............................................................................................................................39 Thumb
指令
集与
ARM
指令
集的区别..............................................................................39 Thumb 存储器访问
指令
.....................................................................................................40 LDR 和STR ........................................................................................................41 PUSH 和POP ......................................................................................................43 LDMIA 和STMIA ..............................................................................................43 Thumb 数据处理
指令
.........................................................................................................45 数据传送
指令
..............................................................................................................46 MOV ............................................................................................................46 MVN ............................................................................................................46 NEG..............................................................................................................47 算术逻辑运算
指令
......................................................................................................47 ADD.............................................................................................................47 SUB..............................................................................................................48 ADC .............................................................................................................49 SBC..............................................................................................................49 MUL.............................................................................................................50 AND.............................................................................................................50 ORR..............................................................................................................50 EOR..............................................................................................................51 BIC...............................................................................................................51 ASR..............................................................................................................51 LSL...............................................................................................................52 LSR ..............................................................................................................52 ROR..............................................................................................................53 比较
指令
......................................................................................................................53 CMP.............................................................................................................53 CMN.............................................................................................................54 TST...............................................................................................................54 Thumb 跳转
指令
.........................................................................................................55 B...................................................................................................................55 BL.................................................................................................................55 BX................................................................................................................55 Thumb 杂项
指令
.........................................................................................................56 SWI ..............................................................................................................56 Thumb 伪
指令
.............................................................................................................57 ADR .............................................................................................................57 LDR..............................................................................................................57 NOP..............................................................................................................58 伪
指令
.................................................................................................................................................59 符号定义伪
指令
..........................................................................................................................59 GBLA、GBLL、GBLS ..............................................................................................59 LCLA、LCLL、LCLS................................................................................................60 SETA、SETL、SETS .................................................................................................61 RLIST..........................................................................................................................61 CN...............................................................................................................................62 CP................................................................................................................................62 DN、SN.......................................................................................................................62 FN................................................................................................................................63 数据定义伪
指令
..........................................................................................................................63 LTORG.........................................................................................................................64 MAP............................................................................................................................64 FIELD ..........................................................................................................................65
SPACE
..........................................................................................................................66 DCB .............................................................................................................................66
DCD
和
DCD
U............................................................................................................67
DCD
O ..........................................................................................................................67 DCFD 和DCFDU........................................................................................................68 DCFS 和DCFSU.........................................................................................................68 DCI..............................................................................................................................69 DCQ 和DCQU............................................................................................................69 DCW 和DCWU..........................................................................................................70 报告伪
指令
.................................................................................................................................70 ASSERT.......................................................................................................................70 INFO ............................................................................................................................71 OPT.............................................................................................................................71 TTL 和SUBT ..............................................................................................................72 汇编控制伪
指令
..........................................................................................................................73 IF、ELSE 和ENDIF...................................................................................................73 MACRO 和MEND .....................................................................................................74 WHIL 和WEND .........................................................................................................75 杂项伪
指令
.................................................................................................................................76 ALIGN .........................................................................................................................77 AREA...........................................................................................................................78 CODE16 和CODE32..................................................................................................79 END .............................................................................................................................80 ENTRY.........................................................................................................................80 EQU .............................................................................................................................81 EXPORT 和GLOBAL ................................................................................................81 IMPORT 和EXTERN.................................................................................................82 GET 和INCLUDE ......................................................................................................83 INCBIN........................................................................................................................83 KEEP...........................................................................................................................83 NOFP ...........................................................................................................................84 REQUIRE ....................................................................................................................84 PEQUIRE8 和PRESERVE8 .......................................................................................84 RN...............................................................................................................................84 ROUT...........................................................................................................................85
ARM
伪
指令
...............................................................................................................................86 ADR............................................................................................................................86 ADRL...........................................................................................................................86 LDR.............................................................................................................................86 NOP.............................................................................................................................86 LDFD...........................................................................................................................86 LDFS...........................................................................................................................87 Thumb 伪
指令
.............................................................................................................................87 ADR............................................................................................................................87 LDR.............................................................................................................................87 NOP.............................................................................................................................88
ARM
汇编程序设计............................................................................................................................88 文件格式.....................................................................................................................................88
ARM
汇编的一些规范................................................................................................................88 汇编语句格式......................................................................................................................88 标号.....................................................................................................................................89 基于PC 的标号...................................................................................................89 基于寄存器的标号..............................................................................................90 绝对地址..............................................................................................................90 局部标号..............................................................................................................................90 符号.....................................................................................................................................91 常量.....................................................................................................................................91 数字常数..............................................................................................................91 字符常量..............................................................................................................92 布尔常量..............................................................................................................92 段定义.................................................................................................................................92 宏定义及其作用..................................................................................................................93 子程序的调用..............................................................................................................................94 数据比较跳转..............................................................................................................................95 循环.............................................................................................................................................95 数据块复制.................................................................................................................................95 栈操作.........................................................................................................................................96 特殊寄存器定义及应用..............................................................................................................96 散转功能.....................................................................................................................................97 查表操作.....................................................................................................................................97 长跳转.........................................................................................................................................97 对信号量的支持..........................................................................................................................98 伪
指令
使用.................................................................................................................................98
一个
完整的例子..........................................................................................................................98 外围部件控制..............................................................................................................................99 三级流水线介绍..........................................................................................................................99 C 与汇编混合编程............................................................................................................................100 内嵌汇编...................................................................................................................................100 内嵌汇编的
指令
用法........................................................................................................103 内嵌汇编器与
arm
asm 汇编器的差异.............................................................................104 内嵌汇编注意事项............................................................................................................104 访问全局变量............................................................................................................................106 C 与汇编相互调用....................................................................................................................107 寄存器的使用规则............................................................................................................108 堆栈使用规则....................................................................................................................108 参数传递规则....................................................................................................................109 C 程序调用汇编程序........................................................................................................ 110 汇编程序调用C 程序....................................................................................................... 111
ARM
指令
集列表.............................................................................................................................. 113
ARM
存储器访问
指令
表列表.................................................................................................. 113
ARM
数据处理
指令
列表.......................................................................................................... 114
ARM
乘法
指令
列表.................................................................................................................. 115
ARM
跳转
指令
列表.................................................................................................................. 116
ARM
协处理器
指令
列表.......................................................................................................... 117
ARM
杂项
指令
列表.................................................................................................................. 118
ARM
伪
指令
列表...................................................................................................................... 119 Thumb
指令
集列表...........................................................................................................................120 Thumb 存储器访问
指令
列表...................................................................................................120 Thumb 数据处理
指令
列表.......................................................................................................121 Thumb 跳转
指令
及软中断
指令
列表.......................................................................................122 Thumb 伪
指令
列表...................................................................................................................123 汇编预定义变量及伪
指令
................................................................................................................124 预定义的寄存器和协处理器名................................................................................................124 通用寄存器........................................................................................................................124 程序状态寄存器................................................................................................................124 浮点数寄存器....................................................................................................................124 协处理器及协处理器寄存器............................................................................................125 内置变量列表............................................................................................................................125 伪
指令
列表...............................................................................................................................126
指令
条件码列表........................................................................................................................128 CPSR 和SPSR 分配图.............................................................................................................................129
arm
指令
有特殊意义的符号讲解
本文主要讲解了
arm
指令
有特殊意义的符号,希望对你的学习有所帮助。
ARM
伪
指令
.pdf
这是自己整理的
ARM
的常用伪
指令
,可以方便
ARM
爱好者交流,有什么
问题
请指教
ARM
常用伪
指令
--个人整理的很全面
arm
常用伪
指令
适合初学者熟悉启动码很有帮助
ARM
伪操作-伪
指令
详细描述了
ARM
的伪操作,可以当作参考手册来用
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