Commodore 64 - Page 73

Set Interrupt Disable Status
Operation: 1 I
N ZC I DV
Addressing
Mode
Assembly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Implied
SEI
78 1
2
STA
Store Accumulator in Memory
Operation: A-*M
N ZC I DV
Addressing
Mode
Assembly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Zero Page STA
aa
85 2 3
Zero Page, X STA
aa,X
95 2
4
Absolute
STA
aaaa 8D
3
4
Absolute, X
STA aaaa,X 9D 3
5
Absolute, Y STA aaaa,Y
99 3 5
(Indirect, X)
STA (aa,X)
81 2
6
(Indirect), Y
STA
(aa),Y 91
2 6
STX
Store Index X in Memory
Operation: X -> M
N ZCI DV
Addressing
Mode
Assembly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Zero Page
STX aa
86
2
3
Zero Page, Y
STX aa,Y
96
2
4
Absolute
STX aaaa
8E 3
4
71