Texas Instruments MSP430x1xx manual Xor.W, Xor.B

Instruction Set

XOR[.W]	Exclusive OR of source with destination
XOR.B	Exclusive OR of source with destination
Syntax	XOR	src,dst	or	XOR.W	src,dst
	XOR.B	src,dst
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	R6,TONI		; Toggle bits of word TONI on the bits set in R6
Example	The bits set in R6 toggle the bits in the RAM byte TONI.
	XOR.B	R6,TONI		; Toggle bits of byte TONI on the bits set in
				; low byte of R6
Example	Reset to 0 those bits in low byte of R7 that are different from bits in RAM byte
	EDE.
	XOR.B	EDE,R7		; Set different bit to “1s”
	INV.B	R7		; Invert Lowbyte, Highbyte is 0h

RISC 16−Bit CPU 3-71