Renesas R8C/Tiny Series Software Manual page 150

Chapter 3 Functions
XOR
[ Syntax ]
XOR.size src,dest
[ Operation ]
dest dest
[ Function ]
• This instruction exclusive ORs
dest
• If is an A0 or A1 when the size specifier (.size) you selected is (.B),
perform operation in 16 bits. If
or A1.
[ Selectable src/dest ]
R0L/R0 R0H/R1
*1 *1
A0/A0 A1/A1
dsp:8[A0] dsp:8[A1]
dsp:16[A0] dsp:16[A1]
dsp:20[A0] dsp:20[A1]
R2R0 R3R1
*1 If you specify (.B) for the size specifier (.size), you cannot choose A0 or A1 for
neously.
[ Flag Change ]
U I O
Flag
Change
Conditions
S : The flag is set when the operation resulted in MSB = 1; otherwise cleared.
Z : The flag is set when the operation resulted in 0; otherwise cleared.
[ Description Example ]
XOR.B A0,R0L
XOR.B R0L,A0
XOR.B #3,R0L
XOR.W A0,A1
[ Related Instructions ]
eXclusive OR
B , W
src
src dest
and
src
is an A0 or A1, operation is performed on the 8 low-order bits of A0
src
R1L/R2 R1H/R3
[A0] [A1]
dsp:8[SB] dsp:8[FB] dsp:8[A0]
dsp:16[SB] abs16
abs20 #IMM
A1A0
B S Z D C
AND,OR,TST
Exclusive OR
[ Instruction Code/Number of Cycles ]
together and stores the result in
R0L/R0 R0H/R1
*1
A0/A0 A1/A1
dsp:8[A1]
dsp:16[A0] dsp:16[A1] dsp:16[SB] abs16
dsp:20[A0] dsp:20[A1] abs20
R2R0 R3R1
; A0's 8 low-order bits and R0L are exclusive ORed.
; R0L is zero-expanded and exclusive ORed with A0.
133
3.2
dest
.
src
is zero-expanded to
dest
R1L/R2 R1H/R3
*1
[A0] [A1]
dsp:8[SB] dsp:8[FB]
A1A0
src dest
and
Functions
XOR
Page=243
simulta-