ARM ARM7TDMI User Manual Page 31
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Introduction
ARM DDI 0234B Copyright © 2001 ARM Limited. All rights reserved. 1-15
Addressing mode 3 (signed byte, and halfword data transfer),
<a_mode3>
, is shown in
Table 1-5.
Addressing mode 4 (load),
<a_mode4L>
, is shown in Table 1-6.
[Rn], +/-Rm, ASR #5bit_shift_imm
[Rn], +/-Rm, ROR #5bit_shift_imm
[Rn, +/-Rm, RRX]
Table 1-5 Addressing mode 3
Operation Assembler
Immediate offset
[Rn, #+/-8bit_Offset]
Pre-indexed
[Rn, #+/-8bit_Offset]!
Post-indexed
[Rn], #+/-8bit_Offset
Register
[Rn, +/-Rm]
Pre-indexed
[Rn, +/-Rm]!
Post-indexed
[Rn], +/-Rm
Table 1-6 Addressing mode 4 (load)
Addressing mode Stack type
IA Increment after FD Full descending
IB Increment before ED Empty descending
DA Decrement after FA Full ascending
DB Decrement before EA Empty ascending
Table 1-4 Addressing mode 2 (privileged) (continued)
Operation Assembler
- ARM7TDMI-S 1
- Contents 3
- Chapter 3 Memory Interface 4
- Chapter 6 ETM Interface 5
- Chapter 8 AC Parameters 5
- List of Tables 7
- List of Figures 10
- • Feedback on page xvi 11
- About this document 12
- Preface 13
- Other publications 15
- Architecture 15
- Feedback 16
- Chapter 1 17
- Introduction 17
- 1.2 ARM7TDMI-S architecture 20
- Figure 1-3 ARM7TDMI-S core 23
- 1.4.1 ARM instruction summary 26
- [Rn, #+/-12bit_Offset] 29
- [Rn, +/-Rm] 29
- [Rn, #+/-12bit_Offset]! 29
- [Rn, +/-Rm]! 29
- , is shown in Table 1-4 30
- [Rn, #+/-8bit_Offset] 31
- Register 31
- [Rn, #+/-(8bit_Offset*4)] 32
- Post-indexed 32
- Fields 33
- , are shown in Table 1-10 33
- Condition fields 33
- , are shown in Table 1-11 33
- Halfword 36
- POP <reglist> 38
- POP <reglist, PC> 38
- SWI 8bit_Imm 38
- 0x7F1F0F0F 40
- Chapter 2 43
- Programmer’s Model 43
- 2.3 Memory formats 46
- 2.4 Instruction length 48
- 2.5 Data types 49
- 2.6 Operating modes 50
- 2.7 Registers 51
- Table 2-2 PSR mode bit values 59
- MOV PC, R14 61
- MOVS PC, R14_svc 61
- MOVS PC, R14_und 61
- SUBS PC, R14_abt, #4 61
- SUBS PC, R14_fiq, #4 62
- SUBS PC, R14_irq, #4 62
- SUBS PC, R14_abt, #8 62
- UNPREDICTABLE 62
- SUBS PC,R14_fiq,#4 63
- SUBS PC,R14_abt,#8 65
- MOVS PC,R14_und 65
- 2.10 Interrupt latencies 68
- 2.11 Reset 69
- Chapter 3 71
- Memory Interface 71
- 3.2 Bus interface signals 73
- 3.3 Bus cycle types 74
- Table 3-2 Burst types 77
- Figure 3-5 Merged I-S cycle 79
- 3.4 Addressing signals 80
- 3.4.6 CPTBIT 82
- 3.5 Data timed signals 83
- Figure 3-6 Data replication 86
- Figure 3-7 Use of CLKEN 87
- Chapter 4 89
- 4.1 About coprocessors 90
- Table 4-2 Handshaking signals 94
- Signal Direction Meaning 94
- 4.5 Connecting coprocessors 99
- Coprocessor Interface 100
- 4.7 Undefined instructions 103
- 4.8 Privileged instructions 104
- Chapter 5 105
- Debugging Your System 105
- 5.2 Controlling debugging 109
- 5.3 Entry into debug state 111
- Figure 5-3 Debug state entry 112
- ARM7TDMI-Smacrocell 115
- 5.4 Debug interface 116
- EmbeddedICE-RT 118
- 5.7 Disabling EmbeddedICE-RT 120
- 5.9 Monitor mode debugging 122
- 0 RW...100 124
- MRC CP14, 0, Rd, C0, C0 125
- MCR CP14, 0, Rn, C1, C0 125
- MRC CP14, 0, Rd, C1, C0 126
- 5.12 The TAP controller 130
- 5.13 Public JTAG instructions 132
- 011112272831 135
- Part number 135
- Manufacturer identity 1 135
- 0x7f1f0f0f 136
- 5.15 Scan timing 140
- 31 DATA[30] Input/output 142
- 32 DATA[31] Input/output 142
- 33 DBGBREAK Input 142
- Number Signal Type 142
- 5.17 Exit from debug state 146
- 0 E0802000; ADD R2, R0, R0 148
- 1 E1826001; ORR R6, R2, R1 148
- MOV R0, R0 148
- SUB PC, PC, #28 148
- - (4 + N + 3S) 150
- - (3 + N + 3S) 150
- 8 67 5 34 2 01 154
- 5.21 Programming breakpoints 157
- 0xffffffff 158
- 0xdfffdfff 158
- 0x00000000 158
- 5.22 Programming watchpoints 159
- 5.23 Abort status register 160
- 5.24 Debug control register 161
- 5.25 Debug status register 164
- 5.27 EmbeddedICE-RT timing 169
- Chapter 6 171
- ETM Interface 171
- 6.1 About the ETM interface 172
- 6.4 Clocks and resets 176
- 6.5 Debug request wiring 177
- Chapter 7 179
- Instruction Cycle Timings 179
- MOV PC,R14 185
- STM..{R14} LDM..{PC} 185
- 7.4 Thumb branch with link 186
- 7.5 Branch and exchange 187
- 7.6 Data operations 188
- 7.8 Load register 192
- 7.9 Store register 194
- 7.10 Load multiple registers 195
- 7.11 Store multiple registers 197
- 7.12 Data swap 198
- 7.20 Unexecuted instructions 208
- Chapter 8 209
- AC Parameters 209
- 8.1 Timing diagrams 210
- Figure 8-2 Coprocessor timing 212
- 8.1.4 Debug timing 213
- 8.1.5 Scan timing 214
- Figure 8-5 Scan timing 215
- Appendix A 219
- Signal Descriptions 219
- A.1 Signal descriptions 220
- Appendix B 227
- ARM7TDMI 227
- B.1 Interface signals 228
- B.2 ATPG scan interface 232
- B.3 Timing parameters 233
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