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LDY: Difference between revisions
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'''LDY''' (Load Y) is a 65x instruction that loads the [[Y index register]]. | '''LDY''' (Load Y) is a 65x instruction that loads the [[Y index register]]. | ||
{| class="wikitable" style="float:right;clear:right;width:30%" | |||
!colspan="8"|Basic Info | |||
|+ | |||
|'''Addressing Mode''' | |||
|'''Opcode''' | |||
|'''Length''' | |||
|'''Speed''' | |||
|+ | |||
|immediate | |||
|A0 | |||
|2 bytes | |||
|2 cycles | |||
|+ | |||
|absolute | |||
|AC | |||
|3 bytes | |||
|4 cycles | |||
|+ | |||
|direct page | |||
|A4 | |||
|2 bytes | |||
|3 cycles | |||
|+ | |||
|absolute indexed X | |||
|BC | |||
|3 bytes | |||
|4 cycles | |||
|+ | |||
|direct page indexed X | |||
|B4 | |||
|2 bytes | |||
|4 cycles | |||
|} | |||
{| class="wikitable" style="float:right;clear:right;width:30%" | |||
!colspan="9"|Flags Clobbered | |||
|+ | |||
|N | |||
|V | |||
|M | |||
|X | |||
|D | |||
|I | |||
|Z | |||
|C | |||
|+ | |||
| | |||
|. | |||
|. | |||
|. | |||
|. | |||
| | |||
|. | |||
|. | |||
|} | |||
=== See Also === | === See Also === |
Revision as of 17:56, 1 May 2023
LDY (Load Y) is a 65x instruction that loads the Y index register.
Basic Info | |||||||
---|---|---|---|---|---|---|---|
Addressing Mode | Opcode | Length | Speed | ||||
immediate | A0 | 2 bytes | 2 cycles | ||||
absolute | AC | 3 bytes | 4 cycles | ||||
direct page | A4 | 2 bytes | 3 cycles | ||||
absolute indexed X | BC | 3 bytes | 4 cycles | ||||
direct page indexed X | B4 | 2 bytes | 4 cycles |
Flags Clobbered | ||||||||
---|---|---|---|---|---|---|---|---|
N | V | M | X | D | I | Z | C | |
. | . | . | . | . | . |