Subj : Re: zero page allocation for Forth To : chitselb From : Harry Potter Date : Fri Aug 11 2017 07:42:13 On Thursday, August 10, 2017 at 9:40:24 PM UTC-4, chitselb wrote: > It looks like what they did is put the memory mapping I/O port at $00-$01 and moved everything up by two? Does it still have the problem of occasionally pooping on address $10 ? There are a couple of places in the PET ROM where writes to $10 occur e.g. B3D8 STA $10 , even though Raeto's "Programming the PET/CBM" book says no, it is unused I don't think the C64 has the $10 bug. Try it! :) --- SoupGate-Win32 v1.05 * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3) .