ZXpand+ ... 3.. 2.. 1..

ZX80 / ZX81 hardware and software offered for sale or swapping
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1024MAK
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Re: ZXpand+ ... 3.. 2.. 1..

Post by 1024MAK » Wed May 17, 2017 1:02 am

8-) :P

Mark

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mhudson52
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Re: ZXpand+ ... 3.. 2.. 1..

Post by mhudson52 » Wed May 17, 2017 2:44 am

Put me down for one as well. By having an actual board from which to design an enclosure I can get them available much more quickly with less prototyping. Looks great! :D
TS 1000 bought in 1982 and brought back to life by Sir Ian

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davidebarlotti
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Re: ZXpand+ ... 3.. 2.. 1..

Post by davidebarlotti » Wed May 17, 2017 4:54 am

Do you think can works also with a Lamba 8300 clones family?

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1024MAK
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Re: ZXpand+ ... 3.. 2.. 1..

Post by 1024MAK » Wed May 17, 2017 8:17 am

davidebarlotti wrote:
Wed May 17, 2017 4:54 am
Do you think can works also with a Lamba 8300 clones family?
The ZX81 version uses it's own modified copy of the ZX81 ROM which is switched in to replace the built in ROM. It is this that allows the ZXpand to have its own BASIC keywords. As the Lamba 8300 clones family have different ROMs, it is unlikely that the code in the different ROMs will be in the same place. Also, the area used by the ZX81 font in the ZXpand ROM is used for machine code (the internal ROM continues to be used for the character font data).

You will have to wait for Mr C for further details of what can and cannot be done.

Mark

sirmorris
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Re: ZXpand+ ... 3.. 2.. 1..

Post by sirmorris » Wed May 17, 2017 8:54 am

davidebarlotti wrote:
Wed May 17, 2017 4:54 am
Do you think can works also with a Lamba 8300 clones family?
Interesting. I know that some clones have a virtually unaltered ROM, with extensions in the 8-16k area. Is there a ROM dump for this machine?

The main issue with clones tends to be that the expansion ports are located differently and ZXpand covers the power/tape/video ports :( This can be got around with an extender however. A picture of the back side of the machine would clear that up.

I know members of the ZX-team use lambdas. Perhaps they can answer more definitively. Head over to our sister forum at tlienhard.com and ask there perhaps? They are a very knowledgeable friendly bunch, all with perfect English.

C

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Re: ZXpand+ ... 3.. 2.. 1..

Post by sirmorris » Wed May 17, 2017 9:11 am

If someone could supply me with a clone... ;)

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PokeMon
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Re: ZXpand+ ... 3.. 2.. 1..

Post by PokeMon » Wed May 17, 2017 9:46 am

I want a clone from me also. :mrgreen:

sirmorris
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Re: ZXpand+ ... 3.. 2.. 1..

Post by sirmorris » Wed May 17, 2017 9:55 am

We should clone the clones Karl! :D :D

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Paul
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Re: ZXpand+ ... 3.. 2.. 1..

Post by Paul » Wed May 17, 2017 10:00 am

sirmorris wrote:
Wed May 17, 2017 9:11 am
If someone could supply me with a clone... ;)
I can supply you with a PC8300 in October
In theory, there is no difference between theory and practice. But, in practice, there is.

sirmorris
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Re: ZXpand+ ... 3.. 2.. 1..

Post by sirmorris » Wed May 17, 2017 10:07 am

:shock: :D Glücklich bin ich!

Natürlich wird dieses glück nicht unbelohnt ;)

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