at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 59

• Manufacturer Part Number: at91cap7e
• Description: Customizable Microcontroller
• Manufacturer: ATMEL Corporation

12.2.6
8549A–CAP–10/08
Thumb Instruction Set Overview
Table 12-2.
The Thumb instruction set is a re-encoded subset of the ARM instruction set.
The Thumb instruction set is divided into:
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
Stack Pointer (ARM Register 13). Further instructions allow limited access to the ARM registers
8 to 15.
Table 12-3
Table 12-3.
Mnemonic
LDM
SWP
MCR
LDC
Mnemonic
MOV
ADD
SUB
CMP
TST
AND
EOR
LSL
ASR
MUL
B
BX
LDR
LDRH
LDRB
• Branch instructions
• Data processing instructions
• Load and Store instructions
• Load and Store Multiple instructions
• Exception-generating instruction
gives the Thumb instruction mnemonic list.
Operation
Move
Add
Subtract
Compare
Test
Logical AND
Logical Exclusive OR
Logical Shift Left
Arithmetic Shift Right
Multiply
Branch and Exchange
Load Word
Load Half Word
Load Byte
ARM Instruction Mnemonic List
Operation
Load Multiple
Swap Word
Move To Coprocessor
Load To Coprocessor
Thumb Instruction Mnemonic List
Branch
Mnemonic
MVN
ADC
SBC
CMN
NEG
BIC
ORR
LSR
ROR
BL
SWI
STR
STRH
STRB
Mnemonic
SWPB
MRC
STC
Operation
Swap Byte
Move From Coprocessor
Store From Coprocessor
Operation
Move Not
Add with Carry
Subtract with Carry
Compare Negated
Negate
Bit Clear
Logical (inclusive) OR
Logical Shift Right
Rotate Right
Branch and Link
Software Interrupt
Store Word
Store Half Word
Store Byte
AT91CAP7E
59