VLA81 enquiry

Discussions about Sinclair ZX80 and ZX81 Hardware
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BrettRogersUK
Posts: 13
Joined: Sat Aug 06, 2022 12:19 am

VLA81 enquiry

Post by BrettRogersUK »

Hey all, me again. If I've got a 32k RAM chip (62256) installed on my replica board. What are the best settings to use on the vla81 to get the most out of it?

I'm having a bit of trouble deciphering the memory modes and the soft mod settings.

At the moment my vla81 is set to Mode 1 of the memory. USR0 on and USR1 off.

I've typed in the memory program that you see about on YouTube vids and I get a value of 24k back. Is that because it is using 8k for the rom as well?

Thanks all.
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