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TAB
(A) ⇒ B
Operation:
Description:
Moves the content of accumulator A to accumulator B. The former con-
tent of B is lost; the content of A is not affected. Unlike the general trans-
fer instruction TFR A,B which does not affect condition codes, the TAB
instruction affects the N, Z, and V status bits for compatibility with
M68HC11.
Condition Codes and Boolean Formulas:
S
–
N:
Z:
V:
Addressing Modes, Machine Code, and Execution Times:
Source Form
TAB
CPU12
REFERENCE MANUAL
Transfer from Accumulator A
to 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
INH
INSTRUCTION GLOSSARY
V
C
0
–
Object Code
18 0E
TAB
Cycles
Access Detail
2
OO
MOTOROLA
6-197
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