location                     function                      label

      ------------------------------------------------------------------

 

        $d500             cONFIGURATION rEGISTER                   cr

        $d501             pRECONFIGURATION rEGISTER a              pcra

        $d502             pRECONFIGURATION rEGISTER b              pcrb

        $d503             pRECONFIGURATION rEGISTER c              pcrc

        $d504             pRECONFIGURATION rEGISTER d              pcrd

        $d505             mODE cONFIGURATION rEGISTER              mcr

        $d506             rAM cONFIGURATION rEGISTER               rcr

        $d507             pAGE ZERO (0) POINTER lSB                p0l

        $d508             pAGE ZERO (0) POINTER hIGH BYTE (MSB)    p0h

        $d509             pAGE ONE (1) POINTER lSB                 p1l

        $d50a             pAGE ONE (1) POINTER hIGH BYTE (MSB)     p1h

        $d50b             vERSION rEGISTER                         vr





        $ff00             cONFIGURATION rEGISTER                   cr

                          (COPY OF LOCATION $d500)                

        $ff01             lOAD cONFIGURATION rEGISTER a            lcra

                          (COPY OF LOCATION $d501)               

        $ff02             lOAD cONFIGURATION rEGISTER b            lcrb

                          (COPY OF LOCATION $d502)

        $ff03             lOAD cONFIGURATION rEGISTER c            lcrc

                          (COPY OF LOCATION $d503)

        $ff04             lOAD cONFIGURATION rEGISTER d            lcrd

                          (COPY OF LOCATION $d504)









                tABLE 1.3  tHE mmu cONTROL rEGISTER lOCATIONS