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PostPosted: Wed Sep 18, 2019 1:47 pm 
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Joined: Sun Jun 12, 2011 12:06 pm
Posts: 574
Location: Poland
Code:
PRG:
  $6000 $8000 $a000 $c000 $e000
   REG0     8     9     a     b
 
CHR:
  8kB CHR-RAM
 
Bus conflicts:
  yes

Warning:
  Despite enabling ROM below $8000, M2 is not taken into account at all.

A~[1.........PPPP..] : REG0
             ||||
             ++++- set PRG bank at $6000
                   value written | effective PRG bank will be
                            0..7 | 0..7
                            8..b | c..f
                            c..f | c..f


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PostPosted: Wed Sep 18, 2019 2:21 pm 
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Joined: Tue Mar 22, 2016 8:27 pm
Posts: 356
Location: Minnesota, USA
Sorry to go off topic but I just recently discovered that crusty edge connectors like this can be cleaned by scrubbing hard with white toothpaste and a toothbrush, it works very well. Then brushing it with lots of water afterwards to remove the toothpaste and let completely dry before using. It sounds crazy but it is similar concept to removing scratches from CDs. I fixed a very deteriorated Super Mario Bros. this way, back to almost brand new. I have used a jeweler's fiberglass brush before but it can remove the top layer and expose the copper too easily.


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