Sinclair ZX80 / ZX81 / Z88 Forums

First, thanks a lot to Dr Beep for this nice tutorial. My comment refers to chapter 6 of the tutorial. The random routine is not random on a ZX81 simulator (I tested with EightyOne and ZEsarUX). My simple explanation (correct me if I'm wrong) is that every time you load the file, the sequence is ide...

Good afternoon, Happy new year to the SINCLAIR ZX WORLD community. It was asked a few times already, but I thought I would give it another try for the new year: @PokeMon, would that be possible to publish the source code for the ZX-IDE? I'm running into problems with using wine on my LINUX machine (...

I was a bit worried after 'Bob's 8 bit blog' went silent... I'm glad to see that BOB IS BACK :-) @Bob, in the spirit of the 8-bit blog you started some years ago, would you consider publishing the source code of your game with some explanation? That would probably be the best way I could learn from ...

Hi Cesar, thanks for the great work, I appreciate being able to use an emulator directly from my linux machine without the hassle of Wine or VirtualBox... Question (not related to 7.1): I'm trying to run Celebration and Against The Elements, from Paul @ fruitcake.com. The graphics are hires, but the...

Hi Lardo, Thanks a bunch for your suggestion. I started to play around with your program, and wanted to get back to BASIC, so I made the following change: - jr mainLoop + ld a, 0 + in a, (254) + cpl + and %00011111 + jp z, mainLoop + ret so that I could get back to BASIC when a key is hit (keyboard ...

Good morning, I'm trying to do a smooth horizontal scrolling while developping a small game. The image is low-res graphic chars, and I want to shift line 16 to 24 from right to left smoothly. As can be seen in the attached file (zipped avi), this is far from smooth. UnsmoothHorizontalScrolling.zip C...

@Dr Beep, you're right, hi-res is plain ZX81. For what I'm intrested in for now, low-res is better, that's all i meant.

@Moggy , thanks a lot, i tried TENNIS, and it is a PONG clone with AI !!! And it is fast.

Good evening,

Might sound like a silly question, but I could not find an answer on Google or the forum: is there any PONG clone on ZX81? And if so, is there an "AI" you can play against?

Thanks. Bruno.

Note: i'm not talking about high-res, but a plain ZX81 game.

I found the reason. It's an extended ASCII code (F7 in my case) that creates the issue.

Good evening, I've had this issue for some time, and was not able to fix it. One of my programs opens as shown here: ZX-IDE-screenshot.png making it impossible to properly use. I have no clue what the reason is. I opened the file in Notepad++, looking for hidden char that could trigger this, without...