2.2.21 BXOR
BXOR (Bit eXclusive OR)
Bit Exclusive Logical OR
Operation
C
⊕
(<bit No.> of <EAd>)
→
C
Assembly-Language Format
BXOR
#xx:3, <EAd>
Operand Size
Byte
Condition Code
H: Previous value remains unchanged.
N: Previous value remains unchanged.
Z:
Previous value remains unchanged.
V: Previous value remains unchanged.
C: Stores the result of the operation.
I
UI
H
U
N
Z
V
C
—
—
—
—
—
—
—
↕
Description
This instruction exclusively ORs a specified bit in the destination operand with the carry bit and
stores the result in the carry bit. The bit number is specified by 3-bit immediate data. The
destination operand contents remain unchanged.
Available Registers
Rd:
R0L to R7L, R0H to R7H
ERd: ER0 to ER7
Operand Format and Number of States Required for Execution
Note:
*
The addressing mode is the addressing mode of the destination operand <EAd>.
Notes
For the @aa:8 access range, refer to the relevant microcontroller hardware manual.
C
C
7
0
Specified by #xx:3
Bit No.
⊕
<EAd>
Instruction Format
1st byte
2nd byte
3rd byte
4th byte
Register direct
BXOR
#xx:3,Rd
7
5
0 IMM
rd
2
Register indirect
BXOR
#xx:3,@ERd
7
C
0 erd
0
7
5
0 IMM
0
6
Absolute address
BXOR
#xx:3,@aa:8
7
E
abs
7
5
0 IMM
0
6
No. of
States
Addressing
Mode
*
Mnemonic
Operands
71