just guessing... did you set up the memory correctly for those programs, ie +8k when loading a program that needs it, and unexpanded for programs that run on unexpanded?
i'd just use a simple copy program written in BASIC - the 1541 demo disk for example should have one that works on vic20 too
Search found 1071 matches
- Sun May 06, 2018 7:47 am
- Forum: Hardware and Tech
- Topic: SD2IEC for VIC-20
- Replies: 24
- Views: 9157
- Thu Apr 26, 2018 8:19 am
- Forum: Other Systems
- Topic: Mega65
- Replies: 35
- Views: 22706
Re: Mega65
actually pretty much every vendor does whatever he can to make sure that is NOT the case when a new system launches (even commodore did)every system starts with no software
- Wed Apr 25, 2018 4:06 pm
- Forum: Other Systems
- Topic: Mega65
- Replies: 35
- Views: 22706
Re: Mega65
dont forget "no software"
- Tue Apr 24, 2018 3:32 pm
- Forum: Other Systems
- Topic: THE128RM (The 128 Remastered)
- Replies: 12
- Views: 8330
Re: THE128RM (The 128 Remastered)
U64 has little to do with "c65" though
- Tue Apr 24, 2018 11:18 am
- Forum: General Topics
- Topic: I got a Commodore Vic-20
- Replies: 20
- Views: 10601
Re: I got a Commodore Vic-20
there is no evidence for either, neither that it "works" nor that it does not. it'd also be hard to produce such evidence :) (anecdotes do not help) however, its undeniable fact that a circuit like this is relatively slow, and would expose the output to high(er) voltage much longer than de...
- Tue Apr 24, 2018 9:13 am
- Forum: General Topics
- Topic: I got a Commodore Vic-20
- Replies: 20
- Views: 10601
Re: I got a Commodore Vic-20
But is there any product you recommend we use that is new? not a specific product. i am using a C128 PSU myself, which is quite a bit better than the C64 powerbricks. should that ever fail, i'd probably just build a replacement myself :) a good DIY variant for ppl without any electronics knowledge ...
- Mon Apr 23, 2018 5:15 pm
- Forum: General Topics
- Topic: I got a Commodore Vic-20
- Replies: 20
- Views: 10601
Re: I got a Commodore Vic-20
that doesnt make this circuit any better really no doubt he has published some good stuff - but there is no doubt some of the things he made are a bit questionable either.US Army trained and was dealing with electronics before most of us were born.
- Mon Apr 23, 2018 10:56 am
- Forum: General Topics
- Topic: I got a Commodore Vic-20
- Replies: 20
- Views: 10601
Re: I got a Commodore Vic-20
ah modern circuit should have a crowbar circuit to prevent overvoltage on failure... even THAT can not be fast enough in some situations, but a relay certainly isnt. a relay based circuit can only ever protect against overvoltage which raises relatively slow while the PSU is being used - however the...
- Sun Apr 22, 2018 2:07 pm
- Forum: Emulation and Cross Development
- Topic: UDGs on 8 Kb+ expanded
- Replies: 12
- Views: 7707
Re: UDGs on 8 Kb+ expanded
conio is optimized portable console output, so it doesnt understand any of the petscii control codes... if you want that, use stdio functions, putchar() would be the function that can do it. that said, its probably a better idea to write to the respective VIC registers directly (someone else can pro...
- Sat Apr 21, 2018 3:57 pm
- Forum: Hardware and Tech
- Topic: VIA 1 CA2 behaviour when switching from output to input
- Replies: 10
- Views: 4836
Re: VIA 1 CA2 behaviour when switching from output to input
indeed it is. there should be a separate test program just for this =P
- Sat Apr 21, 2018 3:24 pm
- Forum: Hardware and Tech
- Topic: VIA 1 CA2 behaviour when switching from output to input
- Replies: 10
- Views: 4836
Re: VIA 1 CA2 behaviour when switching from output to input
i guess we really need 1541 versions of those tests (ie its not really a VIA emulation thing - its a VIC20 specific thing here)
- Thu Apr 19, 2018 1:44 pm
- Forum: Hardware and Tech
- Topic: Mega-Cart
- Replies: 695
- Views: 189054
Re: Mega-Cart
he just had is regular outburst and ragequit over some silly argument on IRC. he'll be back in a year or so. its not the first time this happened
- Tue Apr 17, 2018 8:49 am
- Forum: General Topics
- Topic: I got a Commodore Vic-20
- Replies: 20
- Views: 10601
Re: I got a Commodore Vic-20
is that Sav64 the placebo thing that will safely cut the power with a relay.... a couple hundred microseconds after the C64 was fried? that said, yeah, dont use the old PSUs. dont use those silly "saver" circuits either. a plain simply new modern PSU will do the trick (even more so for the...
- Wed Apr 04, 2018 11:35 am
- Forum: General Topics
- Topic: ** Revision 2018 Invitation / Website
- Replies: 11
- Views: 6209
Re: ** Revision 2018 Invitation / Website
as usual, managed to miss most ppl i was looking for =P
- Wed Apr 04, 2018 11:31 am
- Forum: Programming
- Topic: Amen brother ~ 6 bit audio @ 16.3kHz
- Replies: 34
- Views: 6833
Re: Amen brother ~ 6 bit audio @ 16.3kHz
what funky assembler is that?