1 files changed, 125 insertions, 0 deletions

diff --git a/v4.0/src/INC/CPMFCB.INC b/v4.0/src/INC/CPMFCB.INC
new file mode 100644
index 0000000..1d6a6bf
--- /dev/null
+++ b/v4.0/src/INC/CPMFCB.INC
@@ -0,0 +1,125 @@
+;       SCCSID = @(#)cpmfcb.asm 1.1 85/04/10
+;       SCCSID = @(#)cpmfcb.asm 1.1 85/04/10
+;BREAK <File Control Block definition>
+
+;
+; Field definition for FCBs
+; The FCB has the following structure:
+;
+;       +---------------------------+
+;       |   Drive indicator(byte)   |
+;       +---------------------------+
+;       |    Filename (8 chars)     |
+;       +---------------------------+
+;       |    Extension (3 chars)    |
+;       +---------------------------+
+;       |   Current Extent(word)    |
+;       +---------------------------+
+;       |    Record size (word)     |
+;       +---------------------------+
+;       |    File Size (2 words)    |
+;       +---------------------------+
+;       |       Date of write       |
+;       +---------------------------+
+;       |       Time of write       |
+;       +---------------------------+
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;                                                                          ;
+;       +---------------------------+
+;       |   8 bytes reserved        |
+;       +---------------------------+
+;                                                                          ;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+;       |    next record number     |
+;       +---------------------------+
+;       |   random record number    |
+;       +---------------------------+
+;
+
+sys_fcb     STRUC
+fcb_drive   DB      ?
+fcb_name    DB      8 DUP (?)
+fcb_ext     DB      3 DUP (?)
+fcb_EXTENT  DW      ?
+fcb_RECSIZ  DW      ?                   ; Size of record (user settable)
+fcb_FILSIZ  DW      ?                   ; Size of file in bytes; used with the
+                                        ; following word
+fcb_DRVBP   DW      ?                   ; BP for SEARCH FIRST and SEARCH NEXT
+fcb_FDATE   DW      ?                   ; Date of last writing
+fcb_FTIME   DW      ?                   ; Time of last writing
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;                                                                          ;
+fcb_reserved DB      8 DUP (?)           ; RESERVED
+;                                                                          ;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+fcb_NR      DB      ?                   ; Next record
+fcb_RR      DB      4 DUP (?)           ; Random record
+sys_fcb     ENDS
+
+FILDIRENT       = fcb_FILSIZ            ; Used only by SEARCH FIRST and SEARCH
+                                        ; NEXT
+
+fcb_sfn         EQU     BYTE PTR fcb_reserved
+
+; Note that fcb_net_handle, fcb_nsl_drive, fcb_nsld_drive and fcb_l_drive
+; all must point to the same byte.  Otherwise, the FCBRegen will fail.
+; NOTE about this byte (fcb_nsl_drive)
+;   The high two bits of this byte are used as follows to indicate the FCB type
+;       00 means a local file or device with sharing loaded
+;       10 means a remote (network) file
+;       01 means a local file with no sharing loaded
+;       11 means a local device with no sharing loaded
+
+;
+; Network FCB
+;
+fcb_net_drive   EQU     BYTE PTR fcb_reserved+1
+fcb_net_handle  EQU     WORD PTR fcb_reserved+2
+fcb_netID       EQU     DWORD PTR fcb_reserved+4
+
+;
+; No sharing local file FCB
+;
+fcb_nsl_drive   EQU     BYTE PTR fcb_reserved+1
+fcb_nsl_bits    EQU     BYTE PTR fcb_reserved+2
+fcb_nsl_firclus EQU     WORD PTR fcb_reserved+3
+fcb_nsl_dirsec  EQU     WORD PTR fcb_reserved+5
+fcb_nsl_dirpos  EQU     BYTE PTR fcb_reserved+7
+
+;
+; No sharing local device FCB
+;
+fcb_nsld_drive  EQU     BYTE PTR fcb_reserved+1
+fcb_nsld_drvptr EQU     DWORD PTR fcb_reserved+2
+
+;
+; Sharing local FCB
+;
+fcb_l_drive     EQU     BYTE PTR fcb_reserved+1
+fcb_l_firclus   EQU     WORD PTR fcb_reserved+2
+fcb_l_mfs       EQU     WORD PTR fcb_reserved+4
+fcb_l_attr      EQU     BYTE PTR fcb_reserved+6
+
+;
+; Bogusness:  the four cases are:
+;
+;   local file      00
+;   local device    40
+;   local sharing   C0
+;   network         80
+;
+; Since sharing and network collide, we cannot use a test instruction for
+; deciding whether a network or a share check in involved
+;
+FCBDEVICE   EQU 040h
+FCBNETWORK  EQU 080h
+FCBSHARE    EQU 0C0h
+
+; FCBSPECIAL must be able to mask off both net and share
+FCBSPECIAL  EQU 080h
+FCBMASK     EQU 0C0h
+
\ No newline at end of file