Sinclair ZX80 / ZX81 Forums

A valid point. I had wanted to add powerups and more stages however, by the time I had the backbone of the game programmed there wasn't much memory left. In hindsight, perhaps I should have done it in lo res.

Still, it could make a good basis for a low res game with more stages and more features.

I've finally finished a Hi Res sequel to my old 1994 game Masada Class. This continues the story which left the heroic Masada damaged in space and spinning out of control after defeating the alien menace. In this game, you are the AI of the newest ship off the line - the Calvary. Travel to the alien...

I'm using FASMW-ZX.EXE version 1.71.01

If there is a new version out I'd be interested in having a look at it.

It's rather ironic that I was working all this out only a couple of weekends ago to disassemble and old program for mine so I could replace the basic bits and make it 100% machine code. So only after I'd done it myself do I see this guide. Never mind, thanks for posting it.

Get an MP3 player, download some ZX81 software and see what this little machine can do. They are a lot of fun and can do more than you might expect.

I think it's Uncommitted Logic Array. So your link was close to the mark.

I've downloaded it and the source code. I'll check them out over the weekend.

dr beep wrote: ↑

Sat Jul 13, 2019 9:06 pm

BTW: do you use the optimized base where the call to MC is fully placed over sysvar and so saving most bytes?

You bet I did. I just totally copied the code you'd put into the 1K Jewel game and used that. So this program does not ever use the Basic system.

@ Moggy I found the problem. The zero to indicate stop went missing in the change over to the new compiler from the other compiler I had written it on. If I input your clue numbers and hit solve, it goes around and around until it stops with no solution found. I tried your clues with an on line solv...

@Bukster. Tried the following grid (see picture) on both emulator and real 81. It never seems to get beyond the third line, going into an endless loop as it were. Have run it on emulator speeded up X100 and still no solution after 2hrs run. Just a heads up nothing more as I still think it's great f...