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PM0044 数据表(PDF) 77 Page - STMicroelectronics

部件名 PM0044
功能描述  STM8 CPU programming manual
PDF  162 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

PM0044 数据表(HTML) 77 Page - STMicroelectronics

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PM0044
STM8 instruction set
Doc ID 13590 Rev 3
77/162
Syntax
ADD A,src
e.g. ADD A,#%11001010
Operation
A <= A+ src
Description
The source byte is added to the contents of the accumulator and the result
is stored in the accumulator. The source is a memory or data byte.
Instruction overview
V
⇒
(A7.M7 + M7.R7 + R7.A7)
⊕ (A6.M6 + M6.R6 + R6.A6)
Set if the signed operation generates an overflow, cleared otherwise.
H
⇒
A3.M3 + M3.R3 + R3.A3
Set if a carry occurred from bit 3 of the result, cleared otherwise.
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
⇒
A7.M7 + M7.R7 + R7.A7
Set if a carry occurred from bit 7 of the result, cleared otherwise.
Detailed description
See also: ADDW, ADC, SUB, SBC, MUL, DIV
ADD
Addition
ADD
mnem
dst
src
Affected condition flags
VI1
H
I0
N
Z
C
ADD
A
Mem
V
-H-N
Z
C
dst
src
Asm
cy
lgth
Op-code(s)
ST7
A
#byte
ADD A,#$55
1
2
AB
XX
✗
A
shortmem
ADD A,$10
1
2
BB
XX
✗
A
longmem
ADD A,$1000
1
3
CB
MS
LS
✗
A
(X)
ADD A,(X)
1
1
FB
✗
A
(shortoff,X)
ADD A,($10,X)
1
2
EB
XX
✗
A
(longoff,X)
ADD A,($1000,X)
1
3
DB
MS
LS
✗
A
(Y)
ADD A,(Y)
1
2
90
FB
✗
A
(shortoff,Y)
ADD A,($10,Y)
1
3
90
EB
XX
✗
A
(longoff,Y)
ADD A,($1000,Y)
1
4
90
DB
MS
LS
✗
A
(shortoff,SP)
ADD A,($10,SP)
1
2
1B
XX
A
[shortptr.w]
ADD A,[$10.w]
4
3
92
CB
XX
✗
A
[longptr.w]
ADD A,[$1000.w]
4
4
72
CB
MS
LS
A
([shortptr.w],X)
ADD A,([$10.w],X)
4
3
92
DB
XX
✗
A
([longptr.w],X)
ADD A,([$1000.w],X)
4
4
72
DB
MS
LS
A
([shortptr.w],Y)
ADD A,([$10.w],Y)
4
3
91
DB
XX
✗



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