Datasheet

108
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
12.6.5.2 AND, ORR, EOR, BIC, and ORN
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 “Conditional Execution” .
cond is an optional condition code, see “Conditional Execution” .
Rd is the destination register.
Rn is the register holding the first operand.
Operand2 is a flexible second operand. See “Flexible Second Operand” for details of the
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 “Flexible Second Operand”
 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