Search found 51 matches

by RobertK
Sun Mar 29, 2020 5:33 pm
Forum: SALES
Topic: CB2 micro KIT - Build your own BASIC color microcomputer within 30 minutes.
Replies: 19
Views: 5704

Re: CB2 micro KIT - Build your own BASIC color microcomputer within 30 minutes.

I have now released my first CB2 game: it is a port of my game H-Tron that I released two years ago for the ZX81 and since then for many more Z80-based systems. Now I have entirely rewritten it in BASIC. The CB2 version provides only one-player mode (which is the most important mode anyway), I had t...
by RobertK
Mon Mar 23, 2020 8:55 pm
Forum: SALES
Topic: CB2 micro KIT - Build your own BASIC color microcomputer within 30 minutes.
Replies: 19
Views: 5704

Re: CB2 micro KIT - Build your own BASIC color microcomputer within 30 minutes.

Last weekend I built my CB2 micro, and it worked on the first attempt! I decided to document my work, so here is my *first ever* Youtube video: https://youtu.be/1oPnbR4Rc40 Two things that you should know before you build yours: 1. Apply *a lot* of solder to the upper side Mini-USB pads and its body...
by RobertK
Wed Jan 08, 2020 3:02 pm
Forum: GAMES
Topic: New ZX80 Games
Replies: 16
Views: 20725

Re: New ZX80 Games

Name of Software: Mastermind RK Author: RobertK Release Date: 08/01/2020 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 16K Description: The classic board game " Mastermind " Your goal is to break a four-digit colour code in as few moves as possible. Also available for the ZX81. Download the ga...
by RobertK
Wed Jan 08, 2020 3:01 pm
Forum: GAMES
Topic: New ZX81 Games
Replies: 164
Views: 146435

Re: New ZX81 Games

Name of Software: Mastermind RK Author: RobertK Release Date: 08/01/2020 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 16K Description: The classic board game " Mastermind " Your goal is to break a four-digit colour code in as few moves as possible. A separate Chroma version is also included (...
by RobertK
Wed Jan 08, 2020 2:54 pm
Forum: GAMES
Topic: New ZX80 and ZX81 Game: Mastermind RK
Replies: 0
Views: 4285

New ZX80 and ZX81 Game: Mastermind RK

Here is another little cross-platform game I have created using the z88dk C compiler: Mastermind is a game I enjoyed playing as a kid. It has probably been done already several times for the ZX81, but here is my cross-platform version for various Z80-based computers, including the ZX81 and the ZX80....
by RobertK
Thu Jan 02, 2020 4:39 pm
Forum: GAMES
Topic: Games of TRON
Replies: 5
Views: 2234

Re: Games of TRON

Then i played with RobertK's H-Tron , which has reasonable speed It's unbelievable that you made an 1K version of my game - fantastic job, thanks! I immediately recognized my computer player's AI, that's my baby! ;) but i did not like its 2 buttons control (left/right). :roll: The reason is that I ...
by RobertK
Tue Nov 26, 2019 9:57 am
Forum: Development
Topic: The development of MAX VERSTAPPEN FORMULA ONE PITSTOP SIMULATOR
Replies: 15
Views: 3198

Re: The development of MAX VERSTAPPEN FORMULA ONE PITSTOP SIMULATOR

I was driving on the highway (which by the way I do every day for my job) as I passed a broken truck tyre. I was at the Austrian Grand Prix this year and even saw Max' final move on Leclerc (I was at the right spot at the right time), but I did NOT get the idea to make such a game! :D Great driver,...
by RobertK
Mon Nov 25, 2019 4:41 pm
Forum: Development
Topic: Plot function in z88dk
Replies: 35
Views: 12486

Re: Plot function in z88dk

Thanks, but I think that you (or someone else) fixed the crash problem soon after my last post from March 2018. Here are two WIP ZX80 versions of my game: a fresh compile using the current htron.c source, and a version that I compiled in July 2018, both flickering heavily. The older version looks a ...
by RobertK
Mon Dec 24, 2018 4:36 pm
Forum: Development
Topic: ZX81 Berzerk Game
Replies: 3
Views: 1385

Re: ZX81 Berzerk Game

Thanks Bukster for this wonderful Christmas present! I haven't tried it on the real hardware yet, but here are my thoughts based on an emulator test: - The control's are good for me, very intuitive for someone like me who has played the game mainly on the Atari VCS. - Otto's timing seems to be fine ...
by RobertK
Wed Oct 24, 2018 3:09 pm
Forum: ZX BASIC
Topic: ZX81X2.ROM - and the big bang
Replies: 43
Views: 24414

Re: ZX81X2.ROM - and the big bang

I programmed the ZX81x2 ROM into a ZXC4 ROM cartridge plugged into a Chroma interface and ran a simple loop that filled the screen with random numbers. The difference in speed compared to the running the same loop using the standard ZX81 ROM is very noticeable and highly impressive! Congratulations...