Commodore 64 Handbook page 67

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LDA
L oad Accumulator with Memory
Operation: M -> A
X Z C I D V
y y -----
Addressing
Mode
Assem bly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Im m ediate
LDA
# d d
A 9
2
2
Z e ro Page
LDA
aa
A 5
2
3
Z ero P age, X
LD A
aa,X
B5
2
4
A b so lu te
LDA
aaaa
A D
3
4
A b so lu te , X
LDA
a a a a ,X
BD
3
4 *
A b so lu te , Y
LDA
aaa a,Y
B9
3
4 *
(In d irect, X)
LDA
(aa,X)
A1
2
6
(Indirect), Y
LDA
(aa),Y
B1
2
5 *
• A d d 1 if p ag e b o u n d a ry is cro ssed .
LDX
L oad Index X with Memory
Operation: M -> X
N Z C I D V
y y -----
Addressing
Mode
Assem bly Language
Form
OP
CO DE
No.
Bytes
No.
Cycles
Im m ediate
LD X
# d d
A 2
2
2
Z e ro Page
LDX
aa
A 6
2
3
Z ero P age, Y
LDX
aa ,Y
B6
2
4
A b so lu te
LD X
aaaa
A E
3
4
A b so lu te , Y
LD X
a aa a,Y
BE
3
4 *
• A d d 1 w h e n p a g e b o u n d a ry is cro sse d .
65

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