Yes, but there were three versions, at least, one being the Rockwell, one
being the MOS-Technology , and the third was the Synertek/Western Design
Center version. The VLSI Systems version was different from the Rockwell,
but I don't know whether it was a completely different one or whether it
fell in with one of the others. UMC made one, as did MITSUBISHI, however.
I don't know where they fit in either. Do you?
Dick
-----Original Message-----
From: Sellam Ismail <dastar_at_ncal.verio.com>
To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
Date: Saturday, April 17, 1999 3:14 PM
Subject: Re: z80 timing... 6502 timing
>On Sat, 17 Apr 1999, Allison J Parent wrote:
>
>> The 6502 series ahd all sorts of undocumented opcodes and they tended to
>> change with later versions.
>
>The 65C02 version effectively ended the regular 6502 undocumented opcodes
>since it added a few new instructions and some new addressing modes for
>existing instructions that took on the opcodes of some of the previously
>undocumented ones.
>
>Sellam Alternate e-mail:
dastar_at_siconic.com
>---------------------------------------------------------------------------
---
>Don't rub the lamp if you don't want the genie to come out.
>
> Coming this October 2-3: Vintage Computer Festival 3.0!
> See http://www.vintage.org/vcf for details!
> [Last web site update: 04/03/99]
>
Received on Sat Apr 17 1999 - 16:25:46 BST