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132
Chapter 3 Functions
3.2 Functions
eXCHanGe
Exchange
[ Flag Change ]
[ Description Example ]
[ Function ]
[ Selectable src/dest ]
XCHG
XCHG
[ Syntax ]
XCHG.size
src,dest
• This instruction exchanges contents between
src
and
dest
.
• If
dest
is an A0 or A1 when the size specifier (.size) you selected is (.B), 16 bits of zero- expanded
src
data are placed in the A0 or A1 and the 8 low-order bits of the A0 or A1 are placed in
src
.
src
dest
R0L/R0
R0H/R1
R1L/R2
R1H/R3
R0L/R0
R0H/R1
R1L/R2
R1H/R3
A0/A0
A1/A1
[A0]
[A1]
A0/A0
A1/A1
[A0]
[A1]
dsp:8[A0]
dsp:8[A1]
dsp:8[SB]
dsp:8[FB]
dsp:8[A0]
dsp:8[A1]
dsp:8[SB]
dsp:8[FB]
dsp:16[A0] dsp:16[A1]
dsp:16[SB]
abs16
dsp:16[A0] dsp:16[A1] dsp:16[SB] abs16
dsp:20[A0] dsp:20[A1]
abs20
#IMM
dsp:20[A0] dsp:20[A1] abs20
R2R0
R3R1
A1A0
[A1A0]
R2R0
R3R1
A1A0
[ Related Instructions ]
MOV,LDE,STE
B , W
[ Operation ]
dest src
U
I
O
B
S
Z
D
C
[ Instruction Code/Number of Cycles ]
Page=242
Flag
Change
XCHG.B
R0L,A0 ; A0’s 8 low-order bits and R0L’s zero-expanded value are exchanged.
XCHG.W
R0,A1
XCHG.B
R0L,[A0]
Содержание R8C/Tiny Series
Страница 50: ...Chapter 3 Functions 3 1 Guide to This Chapter 3 2 Functions...
Страница 151: ...134 Chapter 3 Functions 3 2 Functions Blank for page layout...
Страница 152: ...Chapter 4 Instruction Code Number of Cycles 4 1 Guide to This Chapter 4 2 Instruction Code Number of Cycles...
Страница 278: ...Chapter 6 Calculation Number of Cycles 6 1 Instruction queue buffer...
Страница 287: ...Glossary 1 Glossary Technical terms used in this software manual are explained below They are good in this manual only...
Страница 291: ...Symbol 1 Table of symbols Symbols used in this software manual are explained below They are good in this manual only...
Страница 295: ...REVISION HISTORY R8C Tiny Series SOFTWARE MANUAL Rev Date Description Page Summary B 1 1 00 Jun 19 03 First Edition...
Страница 297: ...R8C Tiny Series Software Manual 2 6 2 Ote machi Chiyoda ku Tokyo 100 0004 Japan...