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STAA
(A) ⇒ M
Operation:
Description:
Stores the content of accumulator A in memory location M. The content
of A is unchanged.
Condition Codes and Boolean Formulas:
S
–
N:
Z:
V:
Addressing Modes, Machine Code, and Execution Times:
Source Form
STAA opr8a
STAA opr16a
STAA oprx0_xysp
STAA oprx9,xysp
STAA oprx16,xysp
STAA [D ,xysp ]
STAA [ oprx16,xysp ]
MOTOROLA
6-186
Store Accumulator A
X
H
I
N
Z
∆
∆
–
–
–
Set if MSB of result is set; cleared otherwise.
Set if result is $00; cleared otherwise.
0; Cleared.
Address Mode
DIR
EXT
IDX
IDX1
IDX2
[D,IDX]
[IDX2]
INSTRUCTION GLOSSARY
V
C
0
–
Object Code
5A dd
7A hh ll
6A xb
6A xb ff
6A xb ee ff
6A xb
6A xb ee ff
STAA
Cycles
Access Detail
2
Pw
3
wOP
2
Pw
3
PwO
3
PwP
5
PIfPw
5
PIPPw
CPU12
REFERENCE MANUAL
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