On 4/30/2018 4:32 AM, Marko Mäkelä wrote: > > In the PLA equations, both ROML and ROMH depend on HIRAM. ROML also > depends on LORAM. Both LORAM and HIRAM are connected to the 6510 > on-chip I/O port that is mapped to the data register at $01. UNderstood. I just thought it strange that he's be worried about it, as I assume his hardware would only be on the bus if the code knew about it, and so he would know the state. > > Did you see this document from 2012/2013? > http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/C64_PLA_Dissected.pdf > I had read it, but I reread it jsut to be up to speed. > >     Marko > -- Jim Brain brain@jbrain.com www.jbrain.comReceived on 2018-05-03 07:00:02
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