Search found 502 matches

by groepaz
Thu May 11, 2017 8:09 am
Forum: Hardware and Tech
Topic: Musical Keyboard that Uses the VIC Chip?
Replies: 10
Views: 340

Re: Musical Keyboard that Uses the VIC Chip?

sure it can be done, why not.... you'll need a small microcontroller, a bit of glue logic, and of course a VIC chip :)
by groepaz
Mon May 08, 2017 7:59 pm
Forum: Programming
Topic: Vic-20 mouse driver & demo program for NEOS mouse
Replies: 48
Views: 3902

Re: Vic-20 mouse driver & demo program for NEOS mouse

soooo :) i have merged the various sources/programs into one demo/test program, see here . its not perfect though: - it no more works alongside of basic, i didnt bother to fix that (its good enough for testing and showing how it works as it is) - the NTSC timing is broken, i didnt bother to fix that...
by groepaz
Mon May 08, 2017 6:59 pm
Forum: Emulation and Cross Development
Topic: Super Expander
Replies: 27
Views: 766

Re: Super Expander

ah, of course. that only applies when using "attach cartridge"
by groepaz
Mon May 08, 2017 5:22 pm
Forum: Emulation and Cross Development
Topic: Super Expander
Replies: 27
Views: 766

Re: Super Expander

if I drag my SE prg into vice to load it, vice resets. Is there a way to disable this?

in the settings there is something "reset on hardware change" or so, disable that
by groepaz
Mon May 08, 2017 3:21 pm
Forum: Emulation and Cross Development
Topic: Super Expander
Replies: 27
Views: 766

Re: Super Expander

mmmh wasnt super expander +3k ram AND some ROM cartridge elsewhere?
by groepaz
Fri May 05, 2017 2:24 pm
Forum: Programming
Topic: Vic-20 mouse driver & demo program for NEOS mouse
Replies: 48
Views: 3902

Re: Vic-20 mouse driver & demo program for NEOS mouse

mmmh so, i played around with this.... i can make the regular version work, but it blocks (some of) the keyboard. i tried to fix it with ignoring joy3 bit - but somehow didnt manage to patch this driver to work properly without it.... could someone provide working code for that, please?
by groepaz
Mon May 01, 2017 8:33 am
Forum: Programming
Topic: c2n turbo loader experiment: 4kbit/s data on tape
Replies: 45
Views: 942

Re: c2n turbo loader experiment: 4kbit/s data on tape

I remember the Amiga had some complicated encoding scheme which was probably called that.

amiga disks use MFM, not GCR
by groepaz
Sat Apr 29, 2017 6:45 pm
Forum: Programming
Topic: Vic-20 mouse driver & demo program for NEOS mouse
Replies: 48
Views: 3902

Re: Vic-20 mouse driver & demo program for NEOS mouse

that looks good, thx :)
by groepaz
Fri Apr 28, 2017 12:14 pm
Forum: Programming
Topic: c2n turbo loader experiment: 4kbit/s data on tape
Replies: 45
Views: 942

Re: c2n turbo loader experiment: 4kbit/s data on tape

that'd be pretty nice and cool for a HD actually :)
by groepaz
Fri Apr 28, 2017 8:47 am
Forum: Programming
Topic: Vic-20 mouse driver & demo program for NEOS mouse
Replies: 48
Views: 3902

Re: Vic-20 mouse driver & demo program for NEOS mouse

necroing this thread - i am interested in the test program(s) from the first post - but the links are dead.... could anyone repost them, please?
by groepaz
Fri Apr 28, 2017 8:46 am
Forum: Programming
Topic: c2n turbo loader experiment: 4kbit/s data on tape
Replies: 45
Views: 942

Re: c2n turbo loader experiment: 4kbit/s data on tape

i was looking at "room temperature" and °C, obviously.
by groepaz
Thu Apr 27, 2017 9:13 pm
Forum: Programming
Topic: c2n turbo loader experiment: 4kbit/s data on tape
Replies: 45
Views: 942

Re: c2n turbo loader experiment: 4kbit/s data on tape

At a temperature near 0 K this is very much true, but we're at 300 K room temperature, and this disturbs the elementary magnets over time. The effect may be small, but accumulates over time and becomes faster with an exponential law near the Curie-Point. compared to other factors, eg mechanical str...

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