Commodore 64 - Page 72

SBC
Subtract from Accumulator with Carry
Operation: A — M — C -> A
Note: C = Borrow
NZCIDV
/ /J
Addressing
Mode
Assembly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Immediate
SBC # d d
E9
2 2
Zero Page
SBC
aa
E5 2
3
Zero Page, X
SBC
aa,X
F5
2
4
Absolute
SBC
aaaa
ED
3
4
Absolute, X
SBC
aaaa,X
FD
3
4*
Absolute, Y
SBC
aaaa,Y
F9
3
4*
(Indirect, X)
SBC
(aa,X)
El
2
6
(Indirect), Y
SBC
(aa),Y
FI
2
5*
*Add 1 when page boundary is crossed.
SEC
Set Carry Flag
Operation: 1 C
N Z C ID V
Addressing
Assembly Language
OP
No.
No.
Mode
Form CODE Bytes Cycles
Implied SEC
38
1
2
SED
Set Decimal Mode
Operation: 1 -* D
N Z C ID V
Addressing
Mode
Assembly Language
Form
OP
CODE
No.
Bytes
No.
Cycles
Implied
SED F8
1
2
70