Search found 1060 matches
- Mon Feb 05, 2024 3:30 pm
- Forum: Emulation and Cross Development
- Topic: VICE White Noise Bug?
- Replies: 12
- Views: 341
Re: VICE White Noise Bug?
you shouldnt have to wait, it takes 16 machine cycles to fill the lfsr with 1 bits: enabled:0 bit3:0 bit12:0 bit14:0 bit15:0 gate1:0 gate2:0 gate3:1 gate4:1 lfsr:0001 enabled:0 bit3:0 bit12:0 bit14:0 bit15:0 gate1:0 gate2:0 gate3:1 gate4:1 lfsr:0003 enabled:0 bit3:0 bit12:0 bit14:0 bit15:0 gate1:0 g...
- Mon Feb 05, 2024 3:23 pm
- Forum: Emulation and Cross Development
- Topic: VICE White Noise Bug?
- Replies: 12
- Views: 341
Re: VICE White Noise Bug?
Sorry, i interpreted wrong what you wrote...
yes it requires "enabled" being zero (for some cycles) to start. which it is after reset.
yes it requires "enabled" being zero (for some cycles) to start. which it is after reset.
- Mon Feb 05, 2024 3:16 pm
- Forum: Emulation and Cross Development
- Topic: VICE White Noise Bug?
- Replies: 12
- Views: 341
Re: VICE White Noise Bug?
1 AND 1 is 1, not 0
- Mon Feb 05, 2024 3:10 pm
- Forum: Emulation and Cross Development
- Topic: VICE White Noise Bug?
- Replies: 12
- Views: 341
Re: VICE White Noise Bug?
bit 0 of gate4 is either 0 or 1 on each iteration, and ORed into the LFSR ... so thats how 1 bits go into the LFSR
- Mon Feb 05, 2024 2:35 pm
- Forum: Other Systems
- Topic: Extremely Rare Ala Software game for C64 - Whiz Kid
- Replies: 12
- Views: 654
Re: Extremely Rare Ala Software game for C64 - Whiz Kid
It doesn't seem to work, unfortunately. When using the Audiotap program, for this game I selected "inverted waveform" like I would on vic-20 files. is that correct? It depends on your specific setup - but if it produces working vic20 taps for you, it should work the same for c64 please pos...
- Mon Feb 05, 2024 1:11 pm
- Forum: Emulation and Cross Development
- Topic: VICE White Noise Bug?
- Replies: 12
- Views: 341
Re: VICE White Noise Bug?
What doesn't work though? (That it sounds different is quite expected - there should be a thread somewhere around here about the new reverse engineered LFSR) also the quoted code is missing some lines? it should be: int bit3 = (noise_LFSR >> 3) & 1; int bit12 = (noise_LFSR >> 12) & 1; int bi...
- Sun Feb 04, 2024 10:15 am
- Forum: Emulation and Cross Development
- Topic: Multipaint VIC 20 support
- Replies: 13
- Views: 2524
Re: Multipaint VIC 20 support
Mmmh wouldn't something like charpad be more suited for the job? It already has all the needed features, i think
- Wed Jan 31, 2024 6:35 pm
- Forum: Emulation and Cross Development
- Topic: Multipaint VIC 20 support
- Replies: 13
- Views: 2524
Re: Unknown Vic20 Screen Editor
It's not exactly VIC20 (only): http://multipaint.kameli.net
- Sat Jan 27, 2024 3:49 am
- Forum: Emulation and Cross Development
- Topic: Keyboard Buffer and Ctrl/Shift/CBM etc
- Replies: 20
- Views: 899
Re: Keyboard Buffer and Ctrl/Shift/CBM etc
This should be fairly straight forward to implement.... you can ignore all the details about VIA if all you are after is keyboard input (just assume port 1 is all output, port 2 is all input). Then as you noticed, the logic is low-active (you will see that at many other places). One thing to conside...
- Fri Jan 19, 2024 8:59 am
- Forum: Hardware and Tech
- Topic: Dark bands rolling down the screen
- Replies: 3
- Views: 368
Re: Dark bands rolling down the screen
Tried another PSU? (If they are rolling slowly - most certainly a power problem of some kind)
- Tue Jan 16, 2024 8:55 am
- Forum: Collecting and History
- Topic: Documenting the unreleased/cancelled/prototype video game "Ice Palace"
- Replies: 10
- Views: 1239
Re: Documenting the unreleased/cancelled/prototype video game "Ice Palace"
Have been trying to do the same with GTK VICE 3.8 but I cannot find that option anymore and could not get the .bin to start easily. Maybe there is a good reason to remove support for these files, since they seem to have no starting-address, but this seems to break some software-downloads out there....
- Mon Jan 15, 2024 11:20 am
- Forum: Collecting and History
- Topic: Documenting the unreleased/cancelled/prototype video game "Ice Palace"
- Replies: 10
- Views: 1239
Re: Documenting the unreleased/cancelled/prototype video game "Ice Palace"
... which apparently was made in a decades old VICE - and doesn't work in a recent one.Here is a snap shot for Vice vic20
Making a .crt out of it would make a lot more sense
- Wed Jan 10, 2024 9:18 am
- Forum: Emulation and Cross Development
- Topic: CBM prg Studio
- Replies: 239
- Views: 152254
Re: CBM prg Studio
Isn't it using the remote monitor protocol do it's stuff? In that case it should be totally possible to use the linux version of VICE - at least i don't see why not.
- Fri Dec 15, 2023 10:39 am
- Forum: Programming
- Topic: Increasing the number of sound voices?
- Replies: 4
- Views: 2730
Re: Increasing the number of sound voices?
It works if the composition does mainly consist of fast alternating notes which are all of the same length - not as a generic technique that doubles the channels
- Sat Dec 09, 2023 2:42 pm
- Forum: General Topics
- Topic: Bugs & Quirks in the VIC-20 BASIC & KERNAL ROMs
- Replies: 4
- Views: 2744
Re: Bugs & Quirks in the VIC-20 BASIC & KERNAL ROMs
It should be noted that most (if not all) of this is still broken in the C64 too