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STAB
(B) ⇒ M
Operation:
Description:
Stores the content of accumulator B in memory location M. The content
of B is unchanged.
Condition Codes and Boolean Formulas:
S
–
N:
Z:
V:
Addressing Modes, Machine Code, and Execution Times:
Source Form
STAB opr8a
STAB opr16a
STAB oprx0_xysp
STAB oprx9 , xysp
STAB oprx16 , xysp
STAB [D ,xysp ]
STAB [ oprx16,xysp ]
CPU12
REFERENCE MANUAL
Store Accumulator B
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
5B dd
7B hh ll
6B xb
6B xb ff
6B xb ee ff
6B xb
6B xb ee ff
STAB
Cycles
Access Detail
2
Pw
3
wOP
2
Pw
3
PwO
3
PwP
5
PIfPw
5
PIPPw
MOTOROLA
6-187
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