ARM ARM7TDMI User Manual download pdf (Page 3)

Table of Contents

1 Instruction Encoding ............................................................................................................................................ 1

1.1 ARM7TDMI – ARM Instructions .............................................................................................................................. 1

1.2 ARM7TDMI – THUMB Instructions .......................................................................................................................... 2

2 Conditional Execution ........................................................................................................................................... 2

2.1 Condition Field ...................................................................................................................................................... 2

2.2 Condition Codes .................................................................................................................................................... 2

3 Addressing, Operands and Directives ................................................................................................................... 3

3.1 General Notes ....................................................................................................................................................... 3

3.2 Shifter Operands ................................................................................................................................................... 3

3.3 Load/Store Register Addressing Modes ................................................................................................................... 6

3.4 Miscellaneous Load/Store Addressing Modes ........................................................................................................... 8

3.5 Memory Allocation and Operand Alignment ............................................................................................................. 9

3.6 Miscellaneous Assembler Directives ....................................................................................................................... 10

4 Instruction Descriptions ..................................................................................................................................... 12

4.1 General Information ............................................................................................................................................. 12

4.2 ADC – Add with Carry ........................................................................................................................................... 12

4.3 ADD - Add ........................................................................................................................................................... 13

4.4 AND – Bit-wise AND ............................................................................................................................................. 13

4.5 B, BL – Branch, Branch and Link ........................................................................................................................... 14

4.6 BIC – Bit Clear ..................................................................................................................................................... 15

4.7 BX – Branch and Exchange ................................................................................................................................... 15

4.8 CMN – Compare Negative ..................................................................................................................................... 16

4.9 CMP - Compare .................................................................................................................................................... 16

4.10 EOR – Bit-wise Exclusive-OR ................................................................................................................................. 17

4.11 LDM – Load Multiple .............................................................................................................................................

4.12 LDR – Load Register ............................................................................................................................................. 19

4.13 LDRB – Load Register Byte ................................................................................................................................... 20

4.14 LDRH – Load Register Halfword ............................................................................................................................ 20

4.15 LDRSB – Load Register Signed Byte ...................................................................................................................... 21

4.16 LDRSH – Load Register Signed Halfword ............................................................................................................... 21

4.17 MLA – Multiply-Accumulate ................................................................................................................................... 22

4.18 MOV – Move ........................................................................................................................................................ 22

4.19 MRS – Move PSR into General-Purpose Register ..................................................................................................... 23

4.20 MSR – Move to Status Register from ARM Register ................................................................................................ 23

4.21 MUL – Multiply ..................................................................................................................................................... 24

4.22 MVN – Move Negative .......................................................................................................................................... 25

4.23 ORR – Bit-wise Inclusive-OR ................................................................................................................................. 25

4.24 RSB – Reverse Subtract ........................................................................................................................................ 26

4.25 RSC – Reverse Subtract with Carry ........................................................................................................................ 26

4.26 SBC – Subtract with Carry .................................................................................................................................... 27

4.27 SMLAL – Signed Multiply-Accumulate Long ............................................................................................................ 27

4.28 SMULL – Signed Multiply Long .............................................................................................................................. 28

4.29 STM – Store Multiple ............................................................................................................................................ 28

4.30 STR – Store Register ............................................................................................................................................ 30

4.31 STRB – Store Register Byte .................................................................................................................................. 30

4.32 STRH – Store Register Halfword ............................................................................................................................ 31

4.33 SUB - Subtract ..................................................................................................................................................... 31

4.34 SWI – Software Interrupt ..................................................................................................................................... 32

4.35 SWP - Swap ......................................................................................................................................................... 32

4.36 SWPB – Swap Byte .............................................................................................................................................. 33

4.37 TEQ – Test Equivalence ........................................................................................................................................ 34

4.38 TST - Test ...............................................................................................................

............................................ 34

4.39 UMLAL – Unsigned Multiply-Accumulate Long ........................................................................................................ 35

4.40 UMULL – Unsigned Multiply Long .......................................................................................................................... 35

5 Pseudo-Instructions ........................................................................................................................................... 36

5.1 ADR – Load Address (short-range) ........................................................................................................................ 36

5.2 ADRL – Load Address (medium-range) .................................................................................................................. 36

5.3 ASR – Arithmetic Shift Right ................................................................................................................................. 36

5.4 LDR – Load Register ............................................................................................................................................. 37

5.5 LSL – Logical Shift Left ......................................................................................................................................... 37

5.6 LSR – Logical Shift Right....................................................................................................................................... 37

5.7 NOP – No Operation ............................................................................................................................................. 38

5.8 POP - Pop ............................................................................................................................................................ 38

5.9 PUSH - Push ........................................................................................................................................................ 38

5.10 ROR – Rotate Right .............................................................................................................................................. 38

5.11 RRX – Rotate Right with Extend ............................................................................................................................ 39

1 2 3 4 5 6 7 8 ... 42 43

Comments to this Manuals

No comments

ARM ARM7TDMI User Manual Page 3

Comments to this Manuals