/*
 * Device Control Block (DCB)
 *
 * INCLUDE CX.H PRIOR TO INCLUDING THIS FILE
 *
 * Include EXEDF.H for various symbolics
 *
 * Bob Denny
 * 19-Oct-82
 */
struct dcb     {
               struct dcb *d_lnk;      /* Link to next DCB */
               struct ucb *d_ucb;      /* --> 1st UCB */
               char        d_nam[2];   /* Generic device name */
               byte        d_unit[2];  /* Lo/Hi unit # for this DCB */
               word        d_ucbl;     /* Length of UCB, bytes */
               address     d_dsp;      /* --> driver dispatch table */
               word        d_msk[8];   /* I/O function mask words */
               struct pcb *d_pcb;      /* Loadable driver PCB address */
               };
