Search found 310 matches
- Sun Jul 28, 2013 4:10 am
- Forum: Emulation and Cross Development
- Topic: CC65, conio and non-standard screen sizes
- Replies: 3
- Views: 2270
Thanks for the response Groepaz. After a cursory glance, this looks very similar to what I'm after. It appears to read the screen sizes on an initialise call but it also appears that it needs to be rebuilt for different screen sizes. The other question is how many changes will require to compile wit...
- Sun Jul 28, 2013 12:44 am
- Forum: Emulation and Cross Development
- Topic: Help needed with cc65 BLK5 cart app
- Replies: 18
- Views: 5593
- Sat Jul 27, 2013 9:55 pm
- Forum: Emulation and Cross Development
- Topic: Help needed with cc65 BLK5 cart app
- Replies: 18
- Views: 5593
I wasn't aware of the changes maintenance author from Uz to Oliver, so thanks for that. Unfortunately, the new build doesn't easily install onto OSX systems yet. It compiled cleanly, however, there was no install option like I think I remember when I built 2.13.3. I'm reluctant to break my existing ...
- Wed Jul 24, 2013 3:43 am
- Forum: Emulation and Cross Development
- Topic: Help needed with cc65 BLK5 cart app
- Replies: 18
- Views: 5593
- Tue Jul 23, 2013 4:38 am
- Forum: Emulation and Cross Development
- Topic: CC65, conio and non-standard screen sizes
- Replies: 3
- Views: 2270
CC65, conio and non-standard screen sizes
Jim has got me playing with cc65 again and I've revisited a project that I'd shelved a long time ago. One of the reasons I shelved the project was because I wanted to use the conio functions in C, however the screen size I am using is non-standard. The conio functions in the default Vic20 library th...
- Tue Jul 23, 2013 3:40 am
- Forum: Emulation and Cross Development
- Topic: Help needed with cc65 BLK5 cart app
- Replies: 18
- Views: 5593
- Sat Jul 20, 2013 6:17 pm
- Forum: Emulation and Cross Development
- Topic: Help needed with cc65 BLK5 cart app
- Replies: 18
- Views: 5593
I had another break through in my code and got it working the same as a loadable program or an attachable ROM. For the ROM version of my program I needed to add a additional statement to the crt0.s to copy the contents of initialized variables from ROM to RAM where they're used. ; Call module constr...
- Sat Jul 20, 2013 2:20 am
- Forum: Emulation and Cross Development
- Topic: Help needed with cc65 BLK5 cart app
- Replies: 18
- Views: 5593
I had a break through Jim. The kernal locations for all the routines called at startup are not all available in the Kernal Jump Table in the VIC-20. Specifically, 3 are not there and need to be changed to call direct to the routine. CINT $E518 IOINT $FDF9 RAMTAS $FD8D The vic.lib code uses a common ...
- Thu Jul 18, 2013 8:22 pm
- Forum: Emulation and Cross Development
- Topic: Help needed with cc65 BLK5 cart app
- Replies: 18
- Views: 5593
Hi Jim, I've been trying to have a look at your problem, however I'm a little time poor at the moment. I can recall getting an Autostart cart image working back when I updated the wiki, however I don't have that code working anymore...poor configuration management. I was working on updating it, and ...
- Fri Jun 14, 2013 7:55 pm
- Forum: Programming
- Topic: How to clear Screen and other things.
- Replies: 8
- Views: 1693
- Fri Jun 14, 2013 7:16 am
- Forum: Programming
- Topic: How to clear Screen and other things.
- Replies: 8
- Views: 1693
- Sat Jun 08, 2013 6:19 am
- Forum: Emulation and Cross Development
- Topic: Minigrafik GIMP Plugin Development
- Replies: 26
- Views: 10345
Being able to edit and save images in a VIC-20 format would be the ultimate goal, however I'm still getting my head around GIMP Plug-ins. I haven't yet learned how to save a file in VIC-20 format yet. That will be my next challenge. My initial goal was to be able to open an image file, select a port...
- Wed Jun 05, 2013 4:56 am
- Forum: Emulation and Cross Development
- Topic: Minigrafik GIMP Plugin Development
- Replies: 26
- Views: 10345
http://www.users.on.net/~hawkeys/mike/retro_computing/vic-20/denial/gimp_plugin/currywurst-PAL.png Here's the updated image. As you can see from this image, it is now the correct size for a Minigrafik image (160x192) and the pixels are no longer square. The aspect ratio can be changed by changing t...
- Tue Jun 04, 2013 7:14 am
- Forum: Emulation and Cross Development
- Topic: Minigrafik GIMP Plugin Development
- Replies: 26
- Views: 10345
- Tue Jun 04, 2013 6:41 am
- Forum: Emulation and Cross Development
- Topic: Minigrafik GIMP Plugin Development
- Replies: 26
- Views: 10345
Aspect Ratio of GIMP Pixels
With the current viewer I'm just manually making the aspect ratio 2:1 by painting each pixel twice. A bit of a cludge. A quick bit of investigation tells me that I should be able to set the image resolution at the time of creation and then I can set it appropriately. Next time I'm having a play I mi...