Search found 825 matches

by tokra
Tue Jul 06, 2010 3:38 pm
Forum: Hardware and Tech
Topic: VIC 20 mouse, trackball, ...
Replies: 19
Views: 4932

when you have the 1351 in proportional mode on the VIC joystick port, what display does result, when you try out this small program with MINIGRAFIK commands, and move around the mouse a bit? [...] It reads out the 8-bit values in the POTX and POTY registers and scales them to the 160x192 resolution...
by tokra
Mon Jul 05, 2010 11:54 am
Forum: Hardware and Tech
Topic: Where To Get FE3,C64SD, etc?
Replies: 14
Views: 3041

Diddl wrote:C64SD is same as µIEC and SD2IEC.

I'm wondering: Why are there 3 different devices that are basically the same? Or does one or the other have any advantages the others don't?
by tokra
Mon Jul 05, 2010 11:48 am
Forum: Hardware and Tech
Topic: VIC 20 mouse, trackball, ...
Replies: 19
Views: 4932

Unfortunately the 1351 mouse in proportional mode doesn't work on the VIC. While it's true it uses the paddle x- and y-values on the C64, it just doesn't register those on the VIC. There must be some hardware incompatibility. Technically it should be possible to construct a mouse that is suited to t...
by tokra
Fri Jun 25, 2010 5:28 pm
Forum: Hardware and Tech
Topic: Joystick in user port
Replies: 14
Views: 2418

This exists for the C64: http://www.protovision-online.de/hardw/build4player.htm and can be bought ready built: http://www.vesalia.de/e_c64_4player.htm On the Protovision site you can also find the source-code how to read the joystick-ports - no idea if this can be adapted to the VIC or if the User-...
by tokra
Wed Jun 16, 2010 2:53 pm
Forum: Programming
Topic: fast Mandelbrot fractal generator
Replies: 6
Views: 4044

Thanks, Mike! Here you go with an improved multicolor-fractal version using your fast machine-language routines. It also uses the new 208x248 resolution in multicolor mode (=104x248) and provides for color rotation when viewing pictures: http://www.tokra.de/vic/apfel248m.prg Required is a modified v...
by tokra
Sun Jun 13, 2010 1:09 pm
Forum: Programming
Topic: ** New Frontiers in VIC-Hires-Graphics, Part 6 (sort of)
Replies: 4
Views: 2171

Ok, I've been busy today. Here is: 208x248 Although just another 8 lines were added this was probably the most complicated I've done yet, although it uses all the same already known principles. How does it work? It always bugged me a little that the lower 1K wasn't used to full potential in 208x240:...
by tokra
Sat Jun 12, 2010 11:23 am
Forum: Programming
Topic: ** New Frontiers in VIC-Hires-Graphics, Part 6 (sort of)
Replies: 4
Views: 2171

Too bad - I forgot that the display will not be filled sequentially anymore, which is really one of the reasons 208x240 works. I can start overwriting characters once they have been displayed. There is hardly any raster-time left for the better sta-commands over the whole switched display areas, so ...
by tokra
Sat Jun 12, 2010 9:39 am
Forum: Programming
Topic: fast Mandelbrot fractal generator
Replies: 6
Views: 4044

Multicolor Mandelbrot (104x240)

Yesterday I've ported my old multicolor Mandelbrot program to the new resolution of 108x240 - highly un-optimised BASIC-code as always ;-) http://www.tokra.de/vic/apfel240m.prg Needed of course is the graphics-library (and 24K RAM): http://www.tokra.de/vic/208240-24k.prg here are two example-pics: h...
by tokra
Fri Jun 11, 2010 1:48 pm
Forum: Other Systems
Topic: Best way to create D64 or D71 files on a C128D?
Replies: 33
Views: 7320

Do you have this as a downloadable .prg ? converting the { } to cursor-commands is such a pain...
by tokra
Wed Jun 09, 2010 6:29 pm
Forum: Programming
Topic: ** New Frontiers in VIC-Hires-Graphics, Part 6 (sort of)
Replies: 4
Views: 2171

Talking to myself here - I just noticed that the memory layout could be a little simpler: $1000-$119f: 416 byte video ram (= 832 characters displayed) $1300-$1fff: graphics areas a+b (208x128) + swap-area for c $0000-033f: graphics area d This leaves the following free areas: $0340-$03ff = 192 bytes...
by tokra
Wed Jun 09, 2010 3:27 pm
Forum: Programming
Topic: ** New Frontiers in VIC-Hires-Graphics, Part 6 (sort of)
Replies: 4
Views: 2171

** New Frontiers in VIC-Hires-Graphics, Part 6 (sort of)

Ok, this is not really Part 6 of the series, but rather a continuation of the ideas brought up since then. So this is *live* if you will - feel free to jump in anytime I've been thinking further about the idea that came from AmiDog's suggestion in this topic: http://sleepingelephant.com/ipw-web/bul...
by tokra
Wed Jun 09, 2010 2:11 pm
Forum: Programming
Topic: fast Mandelbrot fractal generator
Replies: 6
Views: 4044

Nice! I'm wondering: If you used the usr-function instead of a sys-call and peek would this speed things up further?
by tokra
Tue Jun 08, 2010 7:05 pm
Forum: Other Systems
Topic: Best way to create D64 or D71 files on a C128D?
Replies: 33
Views: 7320

Can't say anything about 1571cr, I use a european old C128D with the standard 1571. I've noticed however that I cannot use the Diddl-program that writes the .d64 images directly (using ,p,w as paramters), but only the one that writes to an already existing image (using # parameter) I created beforeh...
by tokra
Mon Jun 07, 2010 5:28 am
Forum: Other Systems
Topic: Best way to create D64 or D71 files on a C128D?
Replies: 33
Views: 7320

Sound all very fine to me. You can do the testing for which machine you're running on by the Reset-Vector at $fffc for example
by tokra
Sun Jun 06, 2010 2:05 pm
Forum: Hardware and Tech
Topic: Final Expansion :: 512KB SRAM + 512KB EEPROM + SD Card (2GB)
Replies: 318
Views: 62959

Just wondering: Why don't you always use $9800-$9fff ? This are is called I/O block 2 and 3 in the memory map, but I think it could also be RAM, can't it? Since it's very seldom used I think it would be the ideal place for the wedge.

Go to advanced search