Greeting from the UK. Coding again for the Zx81

[RS232]

I decided i wanted to start coding again for the Zx81 after writing software for the Spectrum Next.

The Zx81 was my 1st computer and back in the 80s i was not aware it was a slow machine spending hours on it making database software for coin and stamp collections for my father.

In the last 3 months i created so.e new Zx81 games.
CITY HIT and LUNA MISSION. I have shared them in this forum. Hope you like.

I recently got the ZxExpand+ but find it faster to code on the emulator Eightyone. Games can later be played on the real hardware

Good week all

[mrtinb]

Welcome to the forum. Great to see new content.

[1024MAK]

Hello and welcome to our forum RS232!



I hope you enjoy this forum

Although I notice you actually joined some time ago

And thank you for contributing

Mark

[RS232]

True , indeed sir.....just i was offline for so long i thought best to introduce myself again.

[RS232]

I added two of my zx81 games in the games section of the forum. Hope you like

[dr beep]

Welcome,

I find it easier to code with an assembler and then oy load .p in the zx81 (emulator).

I am not coding on the machine itself (or emulator).

[RS232]

@Dr beep

I can see you have done some great things!

I never got into machine code, but now I have a ZXpand + it has got me interested again in doing things on the ZX81. I would for example like to be able to load and swap out data from SD to my main program currently loaded. Like I can with the Spectrum. Is there a way to save an array only on the ZX81? This would allow much bigger complex ZX81 programs using the ZXpand to be created. I have a feeling it could be done. The other thing
is do you think it is possible to load a file name list into the ZX81, in an array?

[dr beep]

You can load a block of code seperate from a program. There is a thread here about it nut requires mc knowledge.

[RS232]

Thanks will hunt the forum...

[mrtinb]

If you make code to load just a block, it is very hardware specific. So it will only work with either tape or ZXpand. There is no universal code for loading a block. If you for instance make code that loads a block of code for loading from tape, it will not work in many emulators, as it will generate a different load pattern on the tape, that most emulators don't understand. If you make code to save a block for ZXpand ofcouse it will only work on ZXpand, and the few emulators that emulates this hardware.