MSP              1451 src/dps8/dps8_cable.c         R_CTLR_IOM (MSP,  msp,  oval,    firebrick2)
MSP              1613 src/dps8/dps8_cable.c         CTLR_IOM (MSP, msp)
MSP              1681 src/dps8/dps8_cable.c     CTLR_DEV (MSP, msp, DISK, DSK, dsk);