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

From: smf <smf_at_null.net>
Date: Sat, 29 Aug 2020 14:02:58 +0100
Message-ID: <7adb87f9-568c-4fc8-99df-afe8ec618cc6_at_null.net>
On 29/08/2020 02:36, tokafondo wrote:

> In another words: how feasible would be to implement a sort of SID (or
> whatever other generic PSG chip) engine in a 65xx chip, that could be used
> inside the same cpu, or act as an external sound chip for a main CPU? Do
> exist such a thing?

6502 wouldn't be my first choice. You've got no on chip timers, so every
path would need to be programmed in constant time.

Add a 6522 for timing and you might as well just use that for generating
the sound, you can specify the rate and it will generate a square wave.

If you want anything close to sid then buy an arm2sid or make something
similar using an arm chip.
Received on 2020-08-29 16:00:03

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