ElEctric_EyE wrote:
2010 Datasheet though
2010 is the date on the (presumably latest) version of the data sheet, currently posted on WDC's site. Page three of the data sheet says, "The W65C02S instruction set is compatible with the W65C802S and W65C816S, 16-bit microprocessors and the W65C832S, 32-bit microprocessor." (W65C832S
32-bit microprocessor... really?! I thought we'd given up on that!
)
So, yeah -- they seem to be talking about the upward migration path. The word "compatible" really isn't appropriate, at least not without an accompanying explanation.
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In 1988 my 65C02 got six new registers and 44 new full-speed instructions!
https://laughtonelectronics.com/Arcana/ ... mmary.html