On Thu, Nov 07, 2019 at 09:16:00AM +0100, silverdr_at_wfmh.org.pl wrote: > > On 2019-11-07, at 01:30, Segher Boessenkool <segher_at_kernel.crashing.org> wrote: > > On Wed, Nov 06, 2019 at 09:54:18PM +0100, silverdr_at_wfmh.org.pl wrote: > >> And there are some icing on the cake too - with one command we can turn on/off the annoying HMOS VIC "sparkles" w/o modifications to the board for example as well as enable "Lumafix". This with jumper though :-) > > > > What does it do for the sparkles? > > By default it doesn't do anything because we want to keep the expansion > as "invisible" as possible Sure, good design. > but with a flip of a bit we add a tiny delay to the R/_W line, which > makes HMOS VIC output behave the same as NMOS one. What I meant to ask (and failed horribly at :-) ) is how do you do that? Perhaps I do just not know how this expansion works? I assumed you keep the original system (including ram, cpu, vic) intact, only adding some cartridge or other plug-in; but maybe you don't. SegherReceived on 2020-05-29 23:29:25
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