Re: Emulating a SID (or sort of)... with a 65xx.

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Tue, 1 Sep 2020 18:22:57 +0200 Message-ID: <8a667b58-f13a-4f6b-6757-633b0e3f57c8_at_laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 9/1/20 5:57 PM, Terry Raymond wrote:
> Excuse me for cutting in, would this involve remaking the actual Sid 
> circuit or
> its behaviour?  Im new to FPGA and would like to learn techniques of 
> emualting behaviour of chips especially the Sid, its just the
> complexity of its hardware is mind boggling, there are decaps of the 
> 6581 and 8580 Sid its enourmous where would one start?

There already is an FPGA SID: http://www.fpgasid.de/

And if you want a really good die shot of a 8580, go here:

http://visual6502.org/images/pages/Commodore_8580_SID.html

  Gerrit