Sinclair ZX80 / ZX81 / Z88 Forums

Here are my 2 cents, a "sieve of Erathostenes" implementation for the ZX81, calculation the prime numbers up to 1000: 10 DIM P(1000) 20 FOR I=2 TO 1000 30 LET P(I)=1 40 NEXT I 50 LET P(1)=0 60 FOR Q=2 TO 32 70 IF P(Q)=0 THEN GOTO 110 80 FOR I=Q*Q TO 1000 STEP Q 90 LET P(I)=0 100 NEXT I 110 NEXT Q 12...

Merry Christmas,

and I wish you to find many nice vintage presents under the christmas tree

Bernd

Nice try, Bernd ;) The ZXpand 'firmware' in EO's case is a DLL. I need to re-package EO - I'd forgotten that I needed to do this :oops: See new EO version X3.7 Stupid me - how could I assume that such a low level hardware bound function would be emulated :oops: :lol: Thanks a bunch for the amazingl...

How do I get EightyOne X3 to recognise the new ZXpand firmware V2.2? I created a card.bin containing the firmware file only, but nothing happens when I restart EO...



Bernd

PokeMon wrote:Well - Linux user know the function of option -R (recursive).
Of course you have to be sure to be in the right directory / volume / filesystem before entering rm -R *.

If you are a Unix admin, then it's fun to add this command to a user's logon script

Bernd

Ok, I'll try with a joystick plugged in. I don't have a Kempston, but I have Atari and Commodore joysticks and an adapter - I hope that'll work out...

Bernd

Doesn't work on my +2A, though (no response to key presses)

Bernd

Regarding the RAM pack: you can use a regular Sinclair 16k RAM pack for the ZX80, too. That means 13k more memory for certainly much less than 200£... Memotech RAM packs don't fit at the back of a ZX80, by the way (I've tried it myself). But you can use the Timex packs, as they have similar casings....

Hi Yerz,

just wanted to let you know that I really like your mag. Keep on going!

Bernd

Looks more like cellular automata, if you ask me.

Bernd