ZX80 - ZX81 Upgrade kit.

Discussions about Sinclair ZX80 and ZX81 Hardware
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Fwapp
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Joined: Mon Jun 01, 2015 10:32 pm

ZX80 - ZX81 Upgrade kit.

Post by Fwapp »

Daft question, but was the ROM that was supplied to convert the ZX80 into a ZX81 (sort of) essentially the same as the standard ROM in the ZX81?

i.e. - can I take a ROM out of a ZX81 and pop it in a ZX80 and it'd work?
ZX80, ZX81 - 2C158C Bugged Rom iss.1, 2C158C "kludge fix" iss1, 2C184E iss1, 2C210E iss3, US NTSC iss1 "straight traces", US NTSC iss3 TS1000
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gozzo
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Joined: Fri Jul 08, 2011 8:52 pm

Re: ZX80 - ZX81 Upgrade kit.

Post by gozzo »

i think so, i tried using a zx81 rom in a zx80 and it works, apart from no 'slow' mode, as to be expected...
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1024MAK
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Re: ZX80 - ZX81 Upgrade kit.

Post by 1024MAK »

Yes, the ZX81 ROM (either the old bugged, or the new bug fixed) chip will work in a ZX80 ;)

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Fwapp
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Re: ZX80 - ZX81 Upgrade kit.

Post by Fwapp »

Perfect, thanks gents :)
ZX80, ZX81 - 2C158C Bugged Rom iss.1, 2C158C "kludge fix" iss1, 2C184E iss1, 2C210E iss3, US NTSC iss1 "straight traces", US NTSC iss3 TS1000
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