Commodore VIC-20 Programmer's Reference Manual page 174

SBC Subtract memory from accumufafor with hurruw
Operation: A - M - H •* A N 3 C 1 D V
Note: C * BOTIW (Ret: 2.2.2) / / / /
SBC
Addressing
Mode
Itaaediatt
Zero Page
Zero Page, X
Absolute
Absolute, X
Absolute, Y
(Indirect, X)
(Indirect), Y
Assembly Language
Forte
SEC #Qper
SBC Cper
SBC Oper, X
SBC Oper
SBC Oper, X
SBC Oper, Y
SBC (Opet, X)
SBC (Oper), v
OP
CODE
E9
E5
HD
7D
F9
El
Fl
[i _
Bytes
2
2
2
3
3
2
No.
Cycles
i
3
4
A*
b
5*
* Add 1 when page boundary is crossed.
SEC
Operation: 1 -* C
SF.C Set tarty
(Ref: 3.0.1)
N Z C I D V
X
SEC
Addressing
Mode
Implied
Assembly Language
Form
SEC
OP
CODE
3S
No.
Bytes
1
Ko.
Cycl&a
2
SED ffis/ decimal mode
Operationr l ■+ D
tttef: JS.3,1)
N ?. C I D v
SED
Addressing
Mode
Implied
Assembly Language
Form
SED
OP
CODE
Pg
Mo.
Bytes
1
Nf.>,
Cycles
2
158
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