Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Hoja De Datos

 108

SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

Logical AND, OR, Exclusive OR, Bit Clear, and OR NOT.

Syntax

op{S}{cond} {Rd,} Rn, Operand2

where:

op

is one of:

AND logical AND.

ORR logical OR, or bit set.

EOR logical Exclusive OR.

BIC logical AND NOT, or bit clear.

ORN logical OR NOT.

S

is an optional suffix. If S is specified, the condition code flags are updated on the result  of  the  operation,

see 

.

cond

Rd

is the destination register.

Rn

is the register holding the first operand.

Operand2

is a flexible second operand. See 

options

Operation

The AND, EOR, and ORR instructions perform bitwise AND, Exclusive OR, and OR operations on the values in Rn and
Operand2.

The BIC instruction performs an AND operation on the bits in Rn with the complements of the corresponding bits in the
value of Operand2.

The ORN instruction performs an OR operation on the bits in Rn with the complements of the corresponding bits in the
value of Operand2.

Restrictions

Do not use SP and do not use PC.

Condition Flags

If 

S

 is specified, these instructions:



Update the N and Z flags according to the result



Can update the C flag during the calculation of Operand2, see 



Do not affect the V flag.

Examples

    AND      R9, R2, #0xFF00

    ORREQ    R2, R0, R5

    ANDS     R9, R8, #0x19

    EORS     R7, R11, #0x18181818 

    BIC      R0, R1, #0xab

    ORN    

 R7, R11, R14, ROR #4

    ORNS     R7, R11, R14, ASR #32