We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

CPY: Difference between revisions

From SnesLab
Jump to: navigation, search
(added Labiak page)
(added MCS6500 page)
Line 53: Line 53:
* [[Eyes & Lichty]] page on CPY: https://archive.org/details/0893037893ProgrammingThe65816/page/n576
* [[Eyes & Lichty]] page on CPY: https://archive.org/details/0893037893ProgrammingThe65816/page/n576
* [[Labiak]] page on CPY: https://archive.org/details/Programming_the_65816/page/n147
* [[Labiak]] page on CPY: https://archive.org/details/Programming_the_65816/page/n147
* [[MCS6500 Manual]] page on CPY: https://archive.org/details/mos_microcomputers_programming_manual/page/n117


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

Revision as of 03:56, 16 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