169
∆
LDA
∆
($zz,X) (T=1)
IN D IREC T X
[T=1]
Instruction
:
Byte length
:
Cycle number
:
Timing
:
2
8
PC
H
PC
L
+1
PC
PC +1
BA
L
PC
H
PC
L
A D
L
AD
H
AD
H
X
AD
L
X,00
00
BA
L
+X
00
(PC
+1)
L
A D
H
A D
L
X
BA
L
BA
L
+
X+1
(PC+1)
L
,00
BA
L
+X
,00
BA
L
+X +1
,00
AD
L
AD
H
SYNC
R/W
RD
ADDR
DATA
ADDR
H
ADDR
L
/DATA
WR
DATA
φ
Op -
code
O p -
code
DATA
BA : Basic address
Invalid
DATA
Invalid
DATA