Questions tagged [mos-6581]

Questons about the MOS 6581/8580 SID (Sound Interface Device) chip, used e.g. in the Commodore C64 home computer

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What could SID do that APU could not?

Two of the more famous and highly regarded sound chips in the 8-bit era were the Commodore 64's SID and the Nintendo APU. Which of the two was overall better, seems to be a matter on which there is a ...
rwallace's user avatar
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5 votes
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What percentage of the SID was control versus voices?

I'm interested in specifics of the design and manufacturing of the SID, the sound chip of the Commodore 64. There is a good die photo here
rwallace's user avatar
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How did I fry my SID chip?

I recently got a SID chip (8580r5) for $35 and got it playing music. I was really happy about it. I hooked up a small amp chip to the 9V supply momentarily (it didn't work, I was building that part of ...
user16542's user avatar
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What was the die size of the 6581 SID?

The MOS 6581 SID, the original version of the sound chip in the Commodore 64, was according to Wikipedia, 'produced in 7-micrometer technology to gain a high yield; the state of the art at the time ...
rwallace's user avatar
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4 votes
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Open source, non-GPL SID emulator

I am looking for a SID emulator that is open source, but not GPL. In particular, I am looking for something with a license that allows me to link it to a closed-source program; and also one that ...
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