PM0223 datasheet(56/110 Pages) STMICROELECTRONICS

Part #	PM0223

Description	This programming manual provides information for application and system-level software developers

PDF	110 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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56 / 110 page

The STM32L0 Cortex-M0+ Instruction Set

PM0223

56/110

DocID025763 Rev 1

3.5.2

AND, ORR, EOR, and BIC

Logical AND, OR, Exclusive OR, and Bit Clear.

Syntax

ANDS {Rd,} Rn, Rm

ORRS {Rd,} Rn, Rm

EORS {Rd,} Rn, Rm

BICS {Rd,} Rn, Rm

where:

Operation

The AND, EOR, and ORR instructions perform bitwise AND, exclusive OR, and inclusive

OR operations on the values in Rn and Rm.

The BIC instruction performs an AND operation on the bits in Rn with the logical negation of

the corresponding bits in the value of Rm.

The condition code flags are updated on the result of the operation, see Condition flags on

page 47.

Restrictions

In these instructions, Rd, Rn, and Rm must only specify R0-R7.

Condition flags

These instructions:

Update the N and Z flags according to the result.

Do not affect the C or V flag.

Examples

ANDS

R2, R2, R1

ORRS

R2, R2, R5

ANDS

R5, R5, R8

EORS

R7, R7, R6

BICS

R0, R0, R1

Is the destination register.

Is the register holding the first operand and is the same as the destination

Second register

PM0223 Datasheet(PDF) 56 Page - STMicroelectronics