171
IN D IREC T Y
[T=1]
[T=1]
Instruction
:
Byte length
:
Cycle number
:
Timing
:
∆
CMP
∆
($zz),Y (T=1)
2
7
PC
H
PC
L
+1
PC
PC +1
BA
L
PC
H
PC
L
A D
L
AD
H
AD
H
+C
AD
L
00
00
A D
H
X
BA
L
AD
L
+Y
AD
H
+C
BA
L
BA
L
+1
A D
L
+Y
A D
L
+Y
AD
H
B A
L
,00
B A
L
+1
,00
X,00
AD
L
+Y
AD
H
SYNC
R/W
RD
ADDR
DATA
ADDR
H
ADDR
L
/DATA
WR
DA TA
2
DA TA
1
DATA
1
DATA
2
φ
Op -code
Invalid
O p -
code
C : C arry of AD
L
+Y
BA : Basic address