usr/src/sys/h/mba.m

#
#       mba.m   4.1     11/9/80
#
#
#       VAX massbus adapter registers
#

        .set    MBA0_CSR,0x80064000             # virtual address of mba0
        .set    MBA1_CSR,0x80066000             # ditto mba1

        .set    MBA_CSR,0       # configuration and status register
        .set    MBA_CR,4        # control register
        .set    MBA_SR,8        # status register
        .set    MBA_VAR,12      # virtual address register
        .set    MBA_BCR,16      # byte count register
        .set    MBA_ERB,0x400   # external register base
        .set    MBA_AS,0x410    # attention summary