I'm afraid not. The ZX80 has no /ROMCS line to disable the internal ROM which is necessary to avoid ROM shadows.
Also the (standard) ZX80 has no NMI generator which again is mandatory.
The ZX80 Core should work with ZXBlast
Kind regards Paul
I'm afraid not. The ZX80 has no /ROMCS line to disable the internal ROM which is necessary to avoid ROM shadows.