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Annotation of 3BSD/sys/h/mba.m, revision 1.1.1.1

1.1       root        1: #
                      2: #      mba.m   2.1     1/5/80
                      3: #
                      4: #
                      5: #      VAX massbus adapter registers
                      6: #
                      7: 
                      8:        .set    MBA0_CSR,0x80048000             # virtual address of mba0
                      9:        .set    MBA1_CSR,0x8004a000             # ditto mba1
                     10: 
                     11:        .set    MBA_CSR,0       # configuration and status register
                     12:        .set    MBA_CR,4        # control register
                     13:        .set    MBA_SR,8        # status register
                     14:        .set    MBA_VAR,12      # virtual address register
                     15:        .set    MBA_BCR,16      # byte count register
                     16:        .set    MBA_ERB,0x400   # ???
                     17:        .set    MBA_AS,0x410    # attention summary
                     18: 

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