Commodore 128 Programmer's Reference Manual page 181

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MACHINE LANGUAGE ON THE COMMODORE 128 171
/ I
n
n
LDY
Operation: M -> Y
ADDRESSING
MODE
Immediate
Zero Page
Zero Page, X
Absolute
Absolute, X
i
LDY Load index
ASSEMBLY
LANGUAGE FORM
LDY
LDY
LDY
LDY
LDY
#Oper
Oper
Oper, X
Oper
Oper, X
Y with
OP
CODE
AO
A4
B4
AC
BC
memory
N
NO.
BYTES
2
2
2
3
3
Z C
NO.
CYCLES
2
3
4
4
4*
* Add 1 when page boundary is crossed.
LSR
Operation: 0 -
LSR Shift right one bit (memory or accumuiator)
C
I7l6l5l4l3l2lllol
N
0
z
ADDRESSING
MODE
ASSEMBLY
LANGUAGE FORM
OP NO. NO.
CODE BYTES CYCLES
Accumulator
Zero Page
Zero Page, X
Absolute
Absolute, X
LSR
LSR
LSR
LSR
LSR
A
Oper
Oper, X
Oper
Oper, X
4A
46
56
4E
5E
1
2
2
3
3
2
5
6
6
7
LDY
I D V
LSR
C I D V
J " " "
NOP
Operation: No Operation (2 cycles)
NOP No operation
ADDRESSING
MODE
Implied
ASSEMBLY
LANGUAGE FORM
NOP
OP
CODE
EA
NO.
BYTES
1
NO.
CYCLES
2
NOP
N Z C I D V