Sinclair ZX80 / ZX81 / Z88 Forums

Standard & Chroma versions

Hardware demo...

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

Enjoy;

Greg

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

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

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...

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

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...

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

Impressionistic cityscape at night.

Standard and Chroma versions

Enjoy;

Greg

You're getting sleepy...veeery sleepy.

Standard and colorized.

Enjoy;

Greg

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,...