Anyone know useful ZX80 ROM tricks?

Anything Sinclair ZX Basic related; history, development, tips - differences between BASIC on the ZX80 and ZX81
Shaun_B
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Joined: Wed Apr 22, 2009 10:22 am

Anyone know useful ZX80 ROM tricks?

Post by Shaun_B »

Hi,

I'm hoping to find some useful ZX80 (4K ROM ) tricks that I can deploy in BASIC.

For instance, when a program listing ends, it waits for a key press. Can I call this bit of the ROM in my program, and if so will it continue from the next line on return, or go back to direct mode?

Is there any way that I can read key strokes other than using INPUT?

Many thanks,

Shaun.
Moggy
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Joined: Wed Jun 18, 2008 2:00 pm

Re: Anyone know useful ZX80 ROM tricks?

Post by Moggy »

Whilst I don't have the Latin for such alchemy you might want to pose this question on the German ZX forum, I find the lads there tend to be very clued up on the 80 and may have the answer you seek. :D

http://forum.tlienhard.com/phpBB3/viewforum.php?f=2
Shaun_B
Posts: 474
Joined: Wed Apr 22, 2009 10:22 am

Re: Anyone know useful ZX80 ROM tricks?

Post by Shaun_B »

That's because German Computer Scientists are amongst the best in the world.

Thanks for the tip.

Regards,

Shaun.
Shaun_B
Posts: 474
Joined: Wed Apr 22, 2009 10:22 am

Re: Anyone know useful ZX80 ROM tricks?

Post by Shaun_B »

Hi,

I finished my tic-tac-toe game for the 4K ROM ZX80 which is available here. It is written for the unexpanded machine so there is no AI and it is therefore more difficult to let the computer win.

Does anyone have some byte-saving tips for it? I can think of one or two but I'm not an expert.

Regards,

Shaun.
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siggi
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Location: Wetterau, Germany
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Re: Anyone know useful ZX80 ROM tricks?

Post by siggi »

Moggy wrote: Wed Mar 29, 2017 2:25 pm Whilst I don't have the Latin for such alchemy you might want to pose this question on the German ZX forum, I find the lads there tend to be very clued up on the 80 and may have the answer you seek. :D

http://forum.tlienhard.com/phpBB3/viewforum.php?f=2
There is also a forum for ZX80:
http://forum.tlienhard.com/phpBB3/viewforum.php?f=13
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
Moggy
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Re: Anyone know useful ZX80 ROM tricks?

Post by Moggy »

Thanks Siggi for this :D
Shaun_B
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Joined: Wed Apr 22, 2009 10:22 am

Re: Anyone know useful ZX80 ROM tricks?

Post by Shaun_B »

It is okay that I don't speak German for this forum?

Many thanks,

Shaun.
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siggi
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Location: Wetterau, Germany
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Re: Anyone know useful ZX80 ROM tricks?

Post by siggi »

Yes, some of us understand English (even when written by French people ;) )

Siggi
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
Shaun_B
Posts: 474
Joined: Wed Apr 22, 2009 10:22 am

Re: Anyone know useful ZX80 ROM tricks?

Post by Shaun_B »

I signed up to the German forums, I hope that I get approved.
Moggy
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Joined: Wed Jun 18, 2008 2:00 pm

Re: Anyone know useful ZX80 ROM tricks?

Post by Moggy »

It's a great forum Shaun and as Siggi says language is no barrier (they understand me and I'm a bloody Yorky! :lol: )

In my case when in doubt Google translate with a big dose of copy and paste is the order of the day. :oops:
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