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PM0044 Datasheet(PDF) 139 Page - STMicroelectronics

No. de pieza PM0044
Descripción Electrónicos  STM8 CPU programming manual
PDF  162 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0044 Datasheet(HTML) 139 Page - STMicroelectronics

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PM0044
STM8 instruction set
Doc ID 13590 Rev 3
139/162
Syntax
RRWA dst
e.g. RRWA Y,A
Operation
A => dstH => dstL => A
Description
The destination index register and Accumulator are rotated right by 1-byte.
Instruction overview
N
⇒
R15
Set if bit 15 of the result is set (negative value), cleared otherwise.
Z
⇒
R15.R14.R13.R12.R11.R10.R9.R8.R7.R6.R5.R4.R3.R2.R1.R0
Set if the result is zero (0x0000), cleared otherwise.
Detailed description
See also: RLWA, SWAPW
RRWA
Rotate Right Word through A
RRWA
mnem
dst
src
Affected condition flags
VI1
H
I0
N
Z
C
RLWA
X
A
----
N
Z
-
RLWA
Y
A
----
N
Z
-
dst
src
Asm
cy
lgth
Op-code(s)
ST7
XA
RRWA X
1
1
01
YA
RRWA Y
1
2
90
01



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