Commodore 64 Handbook page 63

CMP
Compare Memory and Accumulator
Operation: A — M
X Z C I D V
y y y ---
Addressing
Mode
Assem bly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Im m ediate
CM P
# d d C 9 2
2
Zero Page
CM P
aa
C 5 2 3
Z ero Page, X CM P
aa,X
D5 2
4
A b so lu te CM P aaaa C D 3
4
A b so lu te, X
CM P
aaaa,X
DD 3
4 *
A b so lu te, Y
CM P a aa a,Y
D9 3
4*
(In direct, X)
CM P
(aa,X) C l 2 6
(Indirect), Y CM P (aa),Y D1 2 5*
*A d d 1 if page boundary is crossed.
CPX
Compare Memory and Index X
Operation: X — M
X Z C I D V
y y y ----
Addressing
Mode
Assem bly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Im m ediate C P X # d d
EO
2 2
Z ero Page
C P X aa E4 2
3
A b so lu te
C P X aaaa EC 3
4
CPY
Com pare Memory and Index Y
Operation: Y — M
X Z C I D V
J J J
------
Addressing
Mode
Assem bly Language
Form
O P
CODE
No.
Bytes
No.
Cycles
Im m ediate
C P Y # d d
CO 2 2
Z ero Page
C P Y aa C 4
2 3
A b so lu te
C P Y aaaa C C
3 4
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