XOR | CS+ V7.00.00

XOR	Logical exclusive or	XOR
	eXclusive OR logical

[Syntax]

(1)	XOR src, dest

(2)	XOR src, src2, dest [V3.00.00 or later]

[Operation]

(1)	dest = dest ^ src;

(2)	dest = src2 ^ src; [V3.00.00 or later]

[Function]

(1)	This instruction exclusive-ORs dest and src and places the result in dest.

(2)	This instruction exclusive ORs src2 and src and places the result in dest. You can assemble assembly-language code that includes this instruction if you have specified the assembler option -isa with selection of the instruction set of the RXv3 or a later version. [V3.00.00 or later]

[Instruction Format]

Syntax	Processng Size	Operand			Code Size (Byte)
Syntax	Processng Size	src	src2	dest	Code Size (Byte)
(1) XOR src, dest	L	#SIMM:8	−	Rd	4
	L	#SIMM:16	−	Rd	5
	L	#SIMM:24	−	Rd	6
	L	#IMM:32	−	Rd	7
	L	Rs	−	Rd	3
	L	[Rs].memex	−	Rd	3 (memex == UB) 4 (memex != UB)
	L	dsp:8[Rs].memex*	−	Rd	4 (memex == UB) 5 (memex != UB)
	L	dsp:16[Rs].memex*	−	Rd	5 (memex == UB) 6 (memex != UB)
(2) XOR src, src2, dest [V3.00.00 or later]	L	Rs	Rs2	Rd	3

Note

* For the RX Family assembler manufactured by Renesas Electronics Corp., enter a scaled value (the actual value multiplied by 2 when the size extension specifier is .W or .UW, or by 4 when the specifier is .L) as the displacement value (dsp:8, dsp:16). With dsp:8, values from 0 to 510 (255 × 2) can be specified when the size extension specifier is .W or .UW, or values from 0 to 1020 (255 × 4) when the specifier is .L. With dsp:16, values from 0 to 131070 (65535 × 2) can be specified when the size extension specifier is .W or .UW, or values from 0 to 262140 (65535 × 4) when the specifier is .L. The value divided by 2 or 4 will be stored in the instruction code.

[Flag Change]

Flag	C	Z	S	O
Change	–			–

Conditions

Z : The flag is set if dest is 0 after the operation; otherwise it is cleared.

S : The flag is set if the MSB of dest after the operation is 1 ; otherwise it is cleared.

[Description Example]

XOR #8, R1

XOR R1, R2

XOR [R1], R2

XOR 16[R1].L, R2

XOR R1, R2, R3