v4.0/src/INC/PDB.INC

   1 ;       SCCSID = @(#)pdb.asm    1.1 85/04/10
   2 BREAK <Process data block>
   3
   4 ;
   5 ; Process data block (otherwise known as program header)
   6 ;
   7
   8 FilPerProc          EQU     20
   9
  10 Process_data_block  STRUC
  11 PDB_Exit_Call       DW      ?           ; INT int_abort system terminate
  12 PDB_block_len       DW      ?           ; size of execution block
  13                     DB      ?
  14 PDB_CPM_Call        DB  5 DUP (?)       ; ancient call to system
  15 PDB_Exit            DD      ?           ; pointer to exit routine
  16 PDB_Ctrl_C          DD      ?           ; pointer to ^C routine
  17 PDB_Fatal_abort     DD      ?           ; pointer to fatal error
  18 ;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
  19 ;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
  20 ;                                                                          ;
  21 PDB_Parent_PID      DW      ?           ; PID of parent (terminate PID)
  22 PDB_JFN_Table       DB  FilPerProc DUP (?)
  23                                         ; indices into system table
  24 ;                                                                          ;
  25 ;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
  26 ;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
  27 PDB_environ         DW      ?           ; seg addr of environment
  28 ;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
  29 ;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
  30 ;                                                                          ;
  31 PDB_User_stack      DD      ?           ; stack of self during system calls
  32 PDB_JFN_Length      DW      ?           ; number of handles allowed
  33 PDB_JFN_Pointer     DD      ?           ; pointer to JFN table
  34 PDB_Next_PDB        DD      ?           ; pointer to nested PDB's
  35 PDB_PAD1            DB      14h DUP (?)
  36 ;                                                                          ;
  37 ;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
  38 ;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
  39 PDB_Call_system     DB      5 DUP (?)   ; portable method of system call
  40 ;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
  41 ;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
  42 ;                                                                          ;
  43 PDB_PAD2            DB      7h DUP (?)
  44 ;                                                                          ;
  45 ;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
  46 ;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
  47 Process_data_block  ENDS
  48
  49 PDB_InterCon    EQU     BYTE PTR PDB_PAD1       ; 2/12/KK
  50 PDB_Append      EQU     BYTE PTR PDB_PAD1+1     ; 2/12/KK
  51 \1a