Sinclair ZX80 / ZX81 / Z88 Forums

Real kit or emulator for this? Both ;) It's loaded in two parts, first load The MDRSFX1.P (the Maze) which in turn will load MDRSFX2.P. Tapecfg.png.jpg With ZXpand, include the two files in the same directory and load the the first: LOAD "MDRSFX1" The file MDRSFX.TZX includes the loaders for the ch...

Hello ZX81 fans! To brighten up this beginning of the year, I share with you the classic C.P.Cullen game enriched with sound effects and in game music taken from the Rally-X arcade. Also included support for Chroma-81 via character and color redefinition files. MDRSFX1.png MDRSFX2.png Here's a video...

This is a very interesting fractal, where the variation of the angle between the branches generates very nice results. VALUE ANGLE DEFINE SIERPT ( size n -- ) ?DUP 0= IF DROP EXIT THEN ANGLE LEFT OVER FORWARD OVER 2/ OVER 1- RECURSE OVER BACK ANGLE RIGHT OVER FORWARD OVER 2/ OVER 1- RECURSE OVER BAC...

You have a birthday and we get a present?
Waiting to see your new creation, thank you!

A procedure for drawing the Levy c-curve : VALUE SIZE DEFINE C-CURVE ( n -- ) ?DUP 0= IF SIZE FORWARD EXIT THEN 45 LEFT DUP 1- RECURSE 90 RIGHT DUP 1- RECURSE 45 LEFT DROP END Set an appropriate segment length and then execute C-CURVE with the number of iterations on the stack. Examples of use: 400 ...

The Barnsley fern is a fractal named after the British mathematician Michael Barnsley who first described it in his book Fractals Everywhere. from Wikipedia Below is a procedure for drawing a variation of the Barnsley fern. Usage is: size angle FERN Where size is the lenght of leaf and angle is the...

TF79TG.PNG In the 1980s, one of the things that most caught my attention in computer science journals were the articles about the Logo language. I managed to replicate some of those fascinating graphics on my TK82C, but on a 64x44 pixel screen and with Basic's slowness, the result left much to be d...

I recently made some updates to the EDITOR and HGR extensions to fix bugs and add new features, they are: EDITOR: - correction of a bug that occurred in FILE mode and caused the system to crash when deleting or adding lines. - added the V command to clear the current screen. HGR: - correction of a b...

I disabled the mirroring ram in 8k to 16k while having the 16kb ram pack loaded. What do I do wrong, or else, where am I being stupid ? :cry: My apologies, you're not being stupid! I mistakenly assumed that CBI-REL.P already moved the relocated code to the new address, but it doesn't. Furthermore, ...

Disable "Auto LOAD on Insert", it's the last icon on the top right in the Tape Manager.