Commodore 1541 demo

[jfoucher]

Hi!
I’m not sure if posting this kind of thing here is okay, or whether this was already posted, but this guy built a demo that runs 100% on the commodore 1541 disk drive : http://www.quiss.org/freespin/

I wonder how one acquires the skill set to pull off that sort of thing...

[barrym95838]

jfoucher wrote:

I wonder how one acquires the skill set to pull off that sort of thing...

I think possessing the potential ability to acquire that skill set might be pre-determined before birth.

[floobydust]

That is a pretty interesting project. Granted, it's a chunk of 6502 code and a fair amount of data stored on the diskette. Cool idea using the clock output for sync and the data output for luminous levels.

However, I just can't see why anyone would chop up a pair of cables with a knife .... it would be more useful to simply make an adapter with a couple connectors, some wire and the 100-ohm resistor

[John West]

floobydust wrote:

However, I just can't see why anyone would chop up a pair of cables with a knife .... it would be more useful to simply make an adapter with a couple connectors, some wire and the 100-ohm resistor

I see it as more of a humorous flourish than a serious suggestion. If you want practical, you're not going to be generating video on a floppy drive in the first place.

Adding extra components, even if they're just connectors, goes against the purity of a demo that runs on unmodified hardware. Yes, cutting the cable is technically a modification, and suggesting that the resistor be taken from the C64 is just cheeky. But this way he can at least acknowledge the rules (while bending them past their limit).

[enso]

The reason for the brutal cutting of the cord: once you get a taste of coding directly on the 1541, you'll never go back.

[Martin_H]

That was really neat. Thanks for posting.