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PM0044 Datasheet(PDF) 97 Page - STMicroelectronics

Part # PM0044
Description  STM8 CPU programming manual
PDF  162 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0044 Datasheet(HTML) 97 Page - STMicroelectronics

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PM0044
STM8 instruction set
Doc ID 13590 Rev 3
97/162
Syntax
CPL dst
e.g. CPL (X)
Operation
dst <= dst XOR FF, or FF - dst
Description
The destination byte is read, then each bit is toggled (inverted) and the
result is written to the destination byte. The destination is either a memory
byte or a register. This instruction is compact, and does not affect any
registers when used with RAM variables.
Instruction overview
N
⇒
R7
Set if bit 7 of the result is set (negative value), cleared otherwise.
Z
⇒R7.R6.R5.R4.R3.R2.R1.R0
Set if the result is zero (0x00), cleared otherwise.
C
⇒
1
Set.
Detailed description
See also: NEG, XOR, AND, OR
CPL
Logical 1’s Complement
CPL
mnem
dst
Affected condition flags
VI1
H
I0
N
Z
C
CPL
Mem
--
--
N
Z
1
CPL
Reg
--
--
N
Z
1
dst
Asm
cy
lgth
Op-code(s)
ST7
ACPL A
1
1
43
✗
shortmem
CPL$10
1
2
33
XX
✗
longmem
CPL$1000
1
4
72
53
MS
LS
(X)
CPL(X)
1
1
73
✗
(shortoff.X)
CPL($10,X)
1
2
63
XX
✗
(longoff,X)
CPL($1000,X)
1
4
72
43
MS
LS
(Y)
CPL(Y)
1
2
90
73
✗
(shortoff,Y)
CPL($10,Y)
1
3
90
63
XX
✗
(longoff,Y)
CPL($1000,Y)
1
4
90
43
MS
LS
(shortoff,SP)
CPL($10,SP)
1
2
03
XX
✗
[shortptr.w]
CPL[$10]
4
3
92
33
XX
✗
[longptr.w]
CPL[$1000].w
4
4
72
33
MS
LS
([shortptr.w],X)
CPL([$10],X)
4
3
92
63
XX
✗
([longptr.w].X]
CPL([$1000.w],X)
4
4
72
63
MS
LS
([shortptr.w],Y)
CPL([$10],Y)
4
3
91
63
XX
✗



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