Datasheet

108
11011B–ATARM–21-Feb-12
SAM3N
10.13.2 AND, ORR, EOR, BIC, and ORN
Logical AND, OR, Exclusive OR, Bit Clear, and OR NOT.
10.13.2.1 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” on page 84.
cond is an optional condition code, see See “Conditional execution” on page 84..
Rd is the destination register.
Rn is the register holding the first operand.
Operand2 is a flexible second operand. See “Flexible second operand” on page 80 for
details of the options.
10.13.2.2 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.
10.13.2.3 Restrictions
Do not use SP and do not use PC.
10.13.2.4 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” on
page 80
• do not affect the V flag.