On Tuesday 25 February 2014, you wrote: > On 02/25/2014 03:21 PM, Groepaz wrote: > > On Tuesday 25 February 2014, you wrote: > >> On 2/24/2014 10:04 PM, Groepaz wrote: > >>> On Tuesday 25 February 2014, you wrote: > >>>> This time, it's PLA replacements. > >>>> > >>>> After fitting, the C64 PLA equations take only a nominal portion of > >>>> the xc9536(xl) space I stuffed them into. And, none of the 36 > >>>> registers are used. > >>>> > >>>> I know SuperPLA put a bunch of equations in the unit, for different > >>>> products, but I was wondering... > >>>> > >>>> Are there any memory mappings that would have been nice to have via > >>>> the PLA, but are not available? (external KERNAL at $e000, for > >>>> instance?) Yes, I understand compatibility and all that. But, if you > >>>> had a switchable PLA, what new modes would be of interest? (are there > >>>> any?) > >>> > >>> maybe one where the VIC does never see chargen (but always RAM > >>> instead)? that would be very nice for graphic effects :) > >> > >> So, Bank 1/3 doesn't work? I thought in those banks, charrom is gone... > > > > err yes. thats why i said "the VIC does never see chargen". that > > obviously means it is always gone, in all banks. that gives additional > > 8k of memory to use for gfx. > > Of course, you have to make sure that VIC sees the Char-ROM at power on, > otherwise using the C64 will become complicated. of course - but such PLA would need to be switchable from 100% original to whatever else anyway, else its not very practical for actual use -- http://www.hitmen-console.org http://magicdisk.untergrund.net http://www.pokefinder.org http://ftp.pokefinder.org It is essential to understand that everybody sucked in the beginning. <Kristofer Dahl> Message was sent through the cbm-hackers mailing listReceived on 2014-02-25 17:00:41
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