Date   : Wed, 10 Jun 2009 12:54:49 +0000 (GMT)
From   : tommowalker@... (Tom Walker)
Subject: 65C02 instructions

> > Yes. These instructions aren't in the 65C102 chips used in Acorn kit 
> > though.
> 
> !? It's a Rockwell 65C102 and I'm referring to a Rockwell datasheet... 
> but this addressing mode is not present?!? 

I'm getting all confused now. The basic 65C02 supports these instructions, 
but the 65C12 in the Master series doesn't. I've never heard of a 65C102 
but I'd assumed it was similar to the 65C12. At any rate I suspect Acorn
may have used it as a second source for the 65C12 so the instructions probably
shouldn't be supported anyway.

The GTE 65C02 datasheet doesn't list the BBR/BBS/etc instructions which makes
me even more confused.

The later 65802/65816 don't have these instructions in either, which makes
me think maybe they're a specific Rockwell addition?

> Would it support RMBx, SMBx, BBRx, BBSx?

The 65C12 doesn't support any of these.

Cheers,
Tom