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AT91SAM7X256 Datasheet(PDF) 41 Page - ATMEL Corporation

No. de Pieza. AT91SAM7X256
Descripción  AT91 ARM Thumb-based Microcontrollers
Descarga  664 Pages
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Fabricante  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
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AT91SAM7X256 Datasheet(HTML) 41 Page - ATMEL Corporation

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6120D–ATARM–02-Feb-06
AT91SAM7X256/128 Preliminary
12.2.6
Thumb Instruction Set Overview
The Thumb instruction set is a re-encoded subset of the ARM instruction set.
The Thumb instruction set is divided into:
• Branch instructions
• Data processing instructions
• Load and Store instructions
• Load and Store Multiple instructions
• Exception-generating instruction
In Thumb mode, eight general-purpose registers, R0 to R7, are available that are the same
physical registers as R0 to R7 when executing ARM instructions. Some Thumb instructions also
access to the Program Counter (ARM Register 15), the Link Register (ARM Register 14) and the
Table 12-2.
ARM Instruction Mnemonic List
Mnemonic
Operation
Mnemonic
Operation
MOV
Move
CDP
Coprocessor Data Processing
ADD
Add
MVN
Move Not
SUB
Subtract
ADC
Add with Carry
RSB
Reverse Subtract
SBC
Subtract with Carry
CMP
Compare
RSC
Reverse Subtract with Carry
TST
Test
CMN
Compare Negated
AND
Logical AND
TEQ
Test Equivalence
EOR
Logical Exclusive OR
BIC
Bit Clear
MUL
Multiply
ORR
Logical (inclusive) OR
SMULL
Sign Long Multiply
MLA
Multiply Accumulate
SMLAL
Signed Long Multiply Accumulate
UMULL
Unsigned Long Multiply
MSR
Move to Status Register
UMLAL
Unsigned Long Multiply Accumulate
B
Branch
MRS
Move From Status Register
BX
Branch and Exchange
BL
Branch and Link
LDR
Load Word
SWI
Software Interrupt
LDRSH
Load Signed Halfword
STR
Store Word
LDRSB
Load Signed Byte
STRH
Store Half Word
LDRH
Load Half Word
STRB
Store Byte
LDRB
Load Byte
STRBT
Store Register Byte with Translation
LDRBT
Load Register Byte with Translation
STRT
Store Register with Translation
LDRT
Load Register with Translation
STM
Store Multiple
LDM
Load Multiple
SWPB
Swap Byte
SWP
Swap Word
MRC
Move From Coprocessor
MCR
Move To Coprocessor
STC
Store From Coprocessor
LDC
Load To Coprocessor


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