Search found 1333 matches
- Mon Oct 09, 2023 5:47 am
- Forum: General Topics
- Topic: VIC-1001 main board
- Replies: 9
- Views: 3187
Re: VIC-1001 main board
Could you attach a photo?
- Thu Oct 05, 2023 1:21 am
- Forum: Programming
- Topic: Assembly: Detect when result rolls over from 255 to 0
- Replies: 6
- Views: 2224
Re: Assembly: Detect when result rolls over from 255 to 0
When adding to the accumulator using ADC, how can I detect whether a zero roll-over has taken place? That's precisely what the carry bit is for, so your original code should have been bcc inc_src_hi_ptr_done There are a number of implementations of block moves in the 6502.org code repository, http:...
- Sat Sep 30, 2023 2:53 am
- Forum: Emulation and Cross Development
- Topic: VICE: Disabling joysticks from command line
- Replies: 2
- Views: 2161
Re: VICE: Disabling joysticks from command line
How can I disable the joystick port from the command line? I can see lots of options for configuring/adding joysticks in the VICE manual but nothing to actually remove the Keyset A setting. From the command line help -joydev1 <0-9> Set device for native joystick port (0: None, 1: Numpad, 2: Keyset ...
- Sun Sep 24, 2023 12:54 am
- Forum: Hardware and Tech
- Topic: Looking for a source for VIC-20 RAM
- Replies: 5
- Views: 2541
Re: Looking for a source for VIC-20 RAM
There were many manufacturers of these memories, Commodore were not consistent with which they used and you can consider them all suitable. The only parameter you need to be concerned about is the access time, that's the number of the end. The chip you want to replace ends in"-3" that mean...
- Fri Sep 22, 2023 1:18 am
- Forum: Hardware and Tech
- Topic: Making a cheap Power supply.
- Replies: 5
- Views: 2484
Re: Making a cheap Power supply.
The VIC-20 (and C64) need 9V AC (alternating current) on pins 6 and 7. Don't connect 9V DC to either pin, you'll probably fry something.
I built a PSU for an early two pin model, I used a toroidal transformer for that.
I built a PSU for an early two pin model, I used a toroidal transformer for that.
- Wed Sep 20, 2023 1:52 pm
- Forum: Programming
- Topic: Assembly BLAS routines for C64 / VIC-20
- Replies: 6
- Views: 2149
- Sat Sep 02, 2023 5:52 am
- Forum: Games
- Topic: In the making: Arukanoido – an Arkanoid clone
- Replies: 600
- Views: 155760
Re: In the making: Arukanoido – an Arkanoid clone
No worries, it was fun. It's a really good game, the action is very smooth. I didn't notice any glitches while I was playing.
- Sat Sep 02, 2023 2:02 am
- Forum: Games
- Topic: In the making: Arukanoido – an Arkanoid clone
- Replies: 600
- Views: 155760
Re: In the making: Arukanoido – an Arkanoid clone
There's probably an official way of doing this but I rigged up a script that traced the whole transition for round 8 to 9. If you have symbols for this build I can load them and get something more readable.
[Edit: actually attach the file]
[Edit: actually attach the file]
- Sat Sep 02, 2023 12:57 am
- Forum: Games
- Topic: In the making: Arukanoido – an Arkanoid clone
- Replies: 600
- Views: 155760
Re: In the making: Arukanoido – an Arkanoid clone
Finishing round 8 immediately gave me this
The CPU isn't jammed, the CPU history shows it is in a loop. I'll try and get a better record over the transition.
The CPU isn't jammed, the CPU history shows it is in a loop. I'll try and get a better record over the transition.
- Fri Sep 01, 2023 11:43 pm
- Forum: Games
- Topic: In the making: Arukanoido – an Arkanoid clone
- Replies: 600
- Views: 155760
Re: In the making: Arukanoido – an Arkanoid clone
Thanks, I'll give that a try.
- Fri Sep 01, 2023 10:24 am
- Forum: Games
- Topic: In the making: Arukanoido – an Arkanoid clone
- Replies: 600
- Views: 155760
Re: In the making: Arukanoido – an Arkanoid clone
If I wasn't so crap at playing this I'd try to help debug this. Is there a hack to increase the lives?
- Mon Aug 21, 2023 10:27 am
- Forum: Hardware and Tech
- Topic: 3D-printed case?
- Replies: 2
- Views: 2162
Re: 3D-printed case?
There seem to be a number of designs for the C64 but, as you say, none for the VIC-20. There are often sellers on eBay that break systems and sell cases, that's probably the best replacement.
- Sun Aug 20, 2023 2:02 pm
- Forum: Emulation and Cross Development
- Topic: Preview: cbmshell, an interactive file processor
- Replies: 47
- Views: 9572
Re: Preview: cbmshell, an interactive file processor
I've just pushed a new release, 1.15, which has quite a number of small bug fixes. I now have an extensive set of unit tests, that should hopefully prevent any regressions.
- Thu Aug 17, 2023 1:02 pm
- Forum: Hardware and Tech
- Topic: Missing Pixels on screen??
- Replies: 8
- Views: 2795
Re: Missing Pixels on screen??
OK, I'm not a video expert but that looks like artefacts from upscaling?
- Thu Aug 17, 2023 12:00 am
- Forum: Hardware and Tech
- Topic: Missing Pixels on screen??
- Replies: 8
- Views: 2795
Re: Missing Pixels on screen??
Are the missing pixels consistent? As in, if one is missing in the top row of an "A" do all "A"s look the same? Can you attach a screenshot?