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INY
(Y) + $0001 ⇒ Y
Operation:
Description:
Add one to index register Y. LEAY 1,Y can produce the same result but
LEAY does not affect the Z status bit. Although the LEAY instruction is
more flexible, INY requires only one byte of object code.
INY operation affects only the Z status bit.
Condition Codes and Boolean Formulas:
S
–
Z:
Addressing Modes, Machine Code, and Execution Times:
Source Form
INY
CPU12
REFERENCE MANUAL
Increment Index Register Y
X
H
I
N
Z
∆
–
–
–
–
Set if result is $0000; cleared otherwise.
Address Mode
INH
INSTRUCTION GLOSSARY
V
C
–
–
Object Code
02
INY
Cycles
Access Detail
1
O
MOTOROLA
6-101
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