<![CDATA[FPGA Arcade — C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?id=462 Sat, 04 Jul 2015 06:24:58 +0000 PunBB <![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=5213#p5213 there is almost no software for it (the demo disks, and one or two scene demos) and that doesnt even work on all C65s (they are all prototypes, each a little bit different to the next) - which is pretty much the reason why noone bothered to implement a proper C65 emulator either.

Sat, 04 Jul 2015 06:24:58 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=5213#p5213
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=5195#p5195 Any SW for that to run? Just a core running its own basic/kernel sound a bit boring... tongue

Wed, 01 Jul 2015 17:48:03 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=5195#p5195
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=5183#p5183 C65 core would be awesome!

@ JimDrew:
There is no 1581 in the C65. It uses a custom CSG F011 Floppy Disk Controller for the "Fast Serial Bus" (internal drive). There was also the Option of an external Fast Serial Drive, called 1565, which had a small custom 4101 Interface chip. Only 3 external drives (two with cases, one board only) where ever made as far as I know of today.

No, work was done by:
Fred Bowen: System Software
Paul Lassa: Hardware engineer-  C65, DMAgic
Bill Gardei: LSI engineer-  4567, FDC 
Victor Andrade: LSI engineer- 4510 

Hope that helps.

Thu, 25 Jun 2015 01:27:09 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=5183#p5183
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4932#p4932 Paul, great to hear from you.
Very kind, thank you.
I had a quick look at the your code, certainly looks feasible to use our DRAM and IO framework around your core.

Sun, 26 Apr 2015 14:33:33 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4932#p4932
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4931#p4931 Hello,

Lizard wrote:

I just noticed this website http://mega65.org/ where the C65 is rebuild in an fpga.

Might be interesting to contact them to include compatibility for the FPGA Arcade?

I have no objection to the MEGA65 being adapted for the FPGA Arcade.  However, be aware that the design currently requires a large Xilinx 7-series FPGA, as it uses BRAM for the main memory.  It should be feasible to adapt it to a 6-series Spartan if you cut the functionality down to real C65 level, although it might take quite a bit of work.


Sun, 26 Apr 2015 04:18:21 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4931#p4931
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4928#p4928 This mega65 webpage looks strange... This page is better, with technical info: http://c65gs.blogspot.com.au/?m=1

And it uses this code: https://github.com/gardners/c65gs

Fri, 24 Apr 2015 22:10:31 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4928#p4928
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4927#p4927 Yep, a handful of pre-production prototypes were made.  The 1581 was built into what was basically the original C64G case.  I don't think the firmware was ever finished though.  I am not sure if Bill Heard worked on this, or Dave Haynie.  I will ask Dave.

Fri, 24 Apr 2015 19:40:33 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4927#p4927
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4926#p4926 @Mike: Check http://en.wikipedia.org/wiki/Commodore_65 The C65 was the successor of the C64, but it never left protoype status. After Commodore went bankrupt the units were sold.


Fri, 24 Apr 2015 13:25:39 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4926#p4926
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4925#p4925 65, not 64. Sometimes 1 is a very big difference. In this case many thousands of dollars on the used market.

Fri, 24 Apr 2015 10:47:14 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4925#p4925
<![CDATA[Re: C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4924#p4924 We have our own C64 with extra goodies!

Fri, 24 Apr 2015 10:21:30 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4924#p4924
<![CDATA[C65 compatibility?]]> http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4923#p4923 I just noticed this website http://mega65.org/ where the C65 is rebuild in an fpga.

Might be interesting to contact them to include compatibility for the FPGA Arcade?

Thu, 23 Apr 2015 14:35:43 +0000 http://www.fpgaarcade.com/punbb/viewtopic.php?pid=4923#p4923