                                                                        00005000
   << ldt header defines                            >>                  00010000
                                                                        00015000
define                                                                  00020000
   ldt'entry'size         = ldt(1)                  #,                  00025000
   ldt'num'entries        = ldt(0)                  #;                  00030000
                                                                        00035000
   << ldt table defines                             >>                  00040000
                                                                        00045000
define                                                                  00050000
   ldt'access'type        = ldt(ldt'index+2).(10:3) #,                  00055000
   ldt'avail'to'sys       = ldt(ldt'index+3).( 2:1) #,                  00060000
   ldt'class'index        = ldt(ldt'index+3).( 7:1) #,                  00065000
   ldt'cs'device          = ldt(ldt'index+2).( 8:1) #,                  00070000
   ldt'device'type        = ldt(ldt'index+2).(10:6) #,                  00075000
   ldt'dflt'out'dev       = ldt(ldt'index+6)        #,                  00080000
   ldt'dflt'term'type     = ldt(ldt'index+3).( 9:7) #,         <<b8270>>00085000
   ldt'record'width       = ldt(ldt'index+2).( 0:8) #,                  00090000
   ldt'spool'queues       = ldt(ldt'index+3).( 8:1) #,         <<b8270>>00095000
   ldt'spool'state        = ldt(ldt'index+3).( 0:2) #,                  00100000
   ldt'volume'tbl'index   = ldt(ldt'index+1)        #,                  00105000
   ldt'xdd'head'entry'ptr  = ldt(ldt'index+4).(3:13)#;         <<b8270>>00110000
                                                                        00115000
<< ldtx device header fields                          >>                00120000
                                                                        00125000
define                                                                  00130000
   ldtx'entry'size       = ldtx(1)                    #,                00135000
   ldtx'num'entries      = ldtx(0)                    #;                00140000
                                                                        00145000
<< ldtx device entry fields.                          >>                00150000
                                                                        00155000
define                                                                  00160000
   ldtx'baud'rate'code     = ldtx(ldtx'index+0).(10:6)#,                00165000
   ldtx'lynxii             = ldtx(ldtx'index+2).( 0:1)#,                00170000
   ldtx'seek'ahead         = ldtx(ldtx'index+0).( 0:1)#,                00175000
   ldtx'tdt'offset         = ldtx(ldtx'index+1)       #;                00180000
