Changes
MOS 6502
,/* Chip Variants */
* The WDC 65C816, used in the [[SNES]] and the [[Apple IIGS]], is a 16-bit version of the 65C02 [https://www.westerndesigncenter.com/wdc/documentation/w65c816s.pdf 65C816 datasheet] [https://archive.org/details/SNESDevManual/ SNES development manual] [https://problemkaputt.de/fullsnes.htm Noca$h's fullsnes] [https://fabiensanglard.net/ Fabien Sanglard's 2024 articles]. The 65C816 contains a compatibillity mode, enabled by default upon reset, that makes it behave like a regular 65C02.
* The Sony SPC700 sound CPU used inside the SNES also behaves similarly to a 6502 with some extensions. [https://wiki.superfamicom.org/spc700-reference Source] [https://www.youtube.com/watch?v=zrn0QavLMyo&list=PLHQ0utQyFw5JD2wWda50J8XuzQ2cFr8RX SPC700 Series] [https://github.com/gilyon/snes-tests SNES-tests]
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