Re: 65c02 in an Apple II+? Different 65c02s

[steve@dosius.zzn.com (Dosius)]

dempson@actrix.gen.nz (David Empson) wrote in message news:<1g0kkhq.1n97lnowmpsykN%dempson@actrix.gen.nz>...
> Wrong.  The Rockwell R65C02 instruction set is a superset of that used
> by the WDC 65C02 (and clones thereof).  It should be perfectly capable
> of being used in an Apple II and will run all software which expects a
> "standard" 65C02.
> 
> The Rockwell variant adds 64 extra opcodes (all hex values x3, x7, xB
> and xF) which deal with manipulating or testing individual bits in zero
> page locations.
> 
> These instructions are not compatible with the 65802 and 65816, which
> used the same opcodes for different purposes.

Hm, is the R65C02 compatible with the G65SC02?

-uso.