Search found 267 matches

by GCHarder
Thu Nov 12, 2020 6:46 pm
Forum: Software
Topic: Cellular Automata: Abelian Sandpile
Replies: 0
Views: 284

Cellular Automata: Abelian Sandpile

Standard & Chroma versions

Hardware demo...

https://youtu.be/-SP8BmDe-fA

Enjoy;

Greg
by GCHarder
Fri Oct 30, 2020 9:42 pm
Forum: ZX BASIC
Topic: Circles Tutorial
Replies: 1
Views: 651

Circles Tutorial

From Compute! July 1983.

BASIC tutorial to draw circles, not mentioned in the article but it's quite easy to modify to draw squares and diamonds as well.

I've included a standard, WRX and Pseudo-Res versions.

Regards;

Greg
by GCHarder
Fri Oct 16, 2020 9:55 pm
Forum: Emulators
Topic: .SCR files from ZX81/ZX80 programs
Replies: 1
Views: 1653

Re: .SCR files from ZX81/ZX80 programs

XavSnaps emulator does all that "in house".

See his thread here...

viewtopic.php?f=3&t=3295

and also here...

viewtopic.php?f=6&t=3825

Regards;

Greg
by GCHarder
Sat Oct 10, 2020 10:16 pm
Forum: Software
Topic: Tiny Dancers, Interactive version
Replies: 0
Views: 2926

Tiny Dancers, Interactive version

Runs with Chroma or Standard 16K. Demo video on real 16K ZX81... https://www.youtube.com/watch?v=d_Sm_sg12R0&feature=youtu.be Here's a more interactive version that allows the user to select the number of dancers and whether to use pixel or characters for the dancers. Again, runs with Chroma or Stan...
by GCHarder
Sat Sep 26, 2020 8:13 pm
Forum: Software
Topic: NTSC2PAL
Replies: 2
Views: 3833

NTSC2PAL

This little routine will run a NTSC system at PAL speed. It does this by
bypassing the ROM's Display-3 routine, which then allows us to change the
margin value from 31 to 55.

See enclosed text for more info.

Demo video...

https://youtu.be/ZsgqFKky3a0

Regards;

Greg
by GCHarder
Sat Sep 19, 2020 8:39 pm
Forum: Software
Topic: Camouflage
Replies: 4
Views: 4350

Camouflage

Quote from the uploader... "Camouflage was the first(?) record to come with a computer-based promo video on its b-side. Here it is loading on a real ZX81, playing from a Technics SL1210mk2 turntable and showing on a Sony PVM-9220ME. Cartridges used are Shure M44-7. " Youtube video... https://www.you...
by GCHarder
Sat Sep 19, 2020 7:58 pm
Forum: Development
Topic: Convert a .jpg or .png whatever to a BW ZX image?
Replies: 5
Views: 4071

Re: Convert a .jpg or .png whatever to a BW ZX image?

It would be nice if there was an option to Save as scr format on the digitize window. Would make it possible to LOAD and SAVE several images without having to leave the window to SAVE the LOADed image.

Just a suggestion, not a big deal.

Regards;

Greg
by GCHarder
Sat Sep 05, 2020 7:23 pm
Forum: Software
Topic: Cityscape
Replies: 1
Views: 4051

Cityscape

Impressionistic cityscape at night.

Standard and Chroma versions

Enjoy;

Greg
by GCHarder
Tue Sep 01, 2020 11:02 pm
Forum: Software
Topic: Vertigo
Replies: 0
Views: 4509

Vertigo

You're getting sleepy...veeery sleepy.

Standard and colorized.

Enjoy;

Greg
Vertigo.gif
Vertigo.gif (11.26 KiB) Viewed 4509 times
by GCHarder
Mon Aug 31, 2020 10:17 pm
Forum: Emulators
Topic: [Vb81] Test release.
Replies: 32
Views: 29568

Re: [Vb81] Test release.

The latest update runs considerably slower! This following program take approx. 44 seconds in the 26-11-19 version and 56 seconds in the 23-08-20 version. 10 FOR I=1 TO 5 20 PRINT I 30 FOR N=0 TO 255 40 PRINT CHR$ N; 50 NEXT N 60 CLS 70 NEXT I There is also a big file size difference, 26-11-18 is 4,...