# # VAX massbus adapter registers # .set MBA0_CSR,0x80028000 # virtual address of mba0 .set MBA1_CSR,0x8002a000 # 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 # ??? .set MBA_AS,0x410 # attention summary