MSG_PARITY_ERROR
case MSG_PARITY_ERROR:
msg_out = MSG_PARITY_ERROR;
{ P_MESGIN, MSG_PARITY_ERROR, "in Message-in phase" },
{ P_MESGIN, MSG_PARITY_ERROR, "in Message-in phase" },
ahc_outb(ahc, SCSIDATL, MSG_PARITY_ERROR);