Texas Instruments MSP430x1xx User Manual page 107

Texas instruments modules and peripherals user's guide
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XOR[.W]
Exclusive OR of source with destination
XOR.B
Exclusive OR of source with destination
Syntax
XOR
XOR.B
Operation
src .XOR. dst −> dst
Description
The source and destination operands are exclusive ORed. The result is placed
into the destination. The source operand is not affected.
Status Bits
N: Set if result MSB is set, reset if not set
Z: Set if result is zero, reset otherwise
C: Set if result is not zero, reset otherwise ( = .NOT. Zero)
V: Set if both operands are negative
Mode Bits
OSCOFF, CPUOFF, and GIE are not affected.
Example
The bits set in R6 toggle the bits in the RAM word TONI.
XOR
Example
The bits set in R6 toggle the bits in the RAM byte TONI.
XOR.B
Example
Reset to 0 those bits in low byte of R7 that are different from bits in RAM byte
EDE.
XOR.B
INV.B
src,dst
or
XOR.W
src,dst
R6,TONI
; Toggle bits of word TONI on the bits set in R6
R6,TONI
; Toggle bits of byte TONI on the bits set in
; low byte of R6
EDE,R7
; Set different bit to "1s"
R7
; Invert Lowbyte, Highbyte is 0h
Instruction Set
src,dst
RISC 16−Bit CPU
3-71

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