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CPY: Difference between revisions

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=== See Also ===
=== See Also ===
* [[CPX]]
* [[CPX]]
=== External Links ===
* [[Eyes & Lichty]] page on CPY: https://archive.org/details/0893037893ProgrammingThe65816/page/n576


[[Category:ASM]]
[[Category:ASM]]
[[Category:Group Three Instructions]]
[[Category:Group Three Instructions]]
[[Category:Inherited from 6502]]
[[Category:Inherited from 6502]]

Revision as of 22:32, 15 May 2023

CPY (Compare Y) is a 65x instruction that compares the value of the Y index register.

Basic Info
Addressing Mode Opcode Length Speed
immediate C0 2 bytes 2 cycles
absolute CC 3 bytes 4 cycles
direct page C4 2 bytes 3 cycles
Flags Clobbered
N V M X D I Z C
. . . . .

See Also

External Links