 RU.HACKER (2:5020/299)  RU.HACKER 
 From : Lesha Bogdanow                      2:5020/84.999   Sat 23 Jul 94 12:46 
 Subj : Shadow memory                                                           


    H,  ਬ, UMC 82C481 (491 ?):

Index reg: 22h
Data  reg: 24h

9Bh: R/W        ?6?43?10
                    Write disable to F0000...FFFFF
                    Shadow enable on F0000...FFFFF
                  
                   Write disable to E0000...EFFFF
                   Shadow enable on E0000...EFFFF
                  Remap D0000...EFFFF

9Dh: R/W        76543210
                 Shadow enable on C0000...C3FFF
                 Shadow enable on C4000...C7FFF
                 Shadow enable on C8000...CBFFF
                 Shadow enable on CC000...CFFFF
                 Shadow enable on D0000...C3FFF
                 Shadow enable on D4000...C7FFF
                 Shadow enable on D8000...CBFFF
                 Shadow enable on DC000...CFFFF

9Eh: R/W        76543210
                 Write disable to C0000...C3FFF
                 Write disable to C4000...C7FFF
                 Write disable to C8000...CBFFF
                 Write disable to CC000...CFFFF
                 Write disable to D0000...C3FFF
                 Write disable to D4000...C7FFF
                 Write disable to D8000...CBFFF
                 Write disable to DC000...CFFFF


