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Thumb Instruction Reference

5.3.1 AND, ORR, EOR, and BIC

Bitwise logical operations.

Syntax

op Rd, Rm

where:

is one of

AND

ORR

EOR

, or

BIC

is the destination register. It also contains the first operand.

must be in

the range

is the register containing the second operand.

must be in the range

Usage

These instructions perform a bitwise logical operation on the contents of

and

, and

place the result in

. The operations are as follows:

• the

AND

instruction performs a logical AND operation

• the

ORR

instruction performs a logical OR operation

• the

EOR

instruction performs a logical Exclusive OR operation

• the

BIC

instruction performs an

AND NOT

operation.

Condition flags

These instructions update the N and Z flags according to the result. The C and V flags

are not affected.

Architectures

These instructions are available in all T variants of the ARM architecture.

Example

AND r2,r4

1 2 ... 212 213 214 215 216 217 218 219 220 221 222 ... 359 360

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Arm VERSION 1.2 Manual do Utilizador Página 217

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