1 files changed, 168 insertions, 0 deletions

diff --git a/v4.0/src/INC/SF.INC b/v4.0/src/INC/SF.INC
new file mode 100644
index 0000000..dd6f188
--- /dev/null
+++ b/v4.0/src/INC/SF.INC
@@ -0,0 +1,168 @@
+;       SCCSID = @(#)sf.asm     1.1 85/04/10
+BREAK <Internal system file table format>
+;
+;   AN000   version 4.00   Jan. 1988
+;   AN003   PTM 3680 --  make NAME offset the same as before (<=3.30)
+;   AN009   PTM 3839     reorder SFT for MS WINDOWS
+
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;                                                                          ;
+;
+; system file table
+;
+
+SF              STRUC
+SFLink          DD      ?
+SFCount         DW      ?               ; number of entries
+SFTable         DW      ?               ; beginning of array of the following
+SF              ENDS
+
+;
+; system file table entry
+;
+
+sf_entry        STRUC
+sf_ref_count    DW      ?               ; number of processes sharing entry
+                                        ;   if FCB then ref count
+sf_mode         DW      ?               ; mode of access or high bit on if FCB
+sf_attr         DB      ?               ; attribute of file
+sf_flags        DW      ?               ;Bits 8-15
+                                        ; Bit 15 = 1 if remote file
+                                        ;        = 0 if local file or device
+                                        ; Bit 14 = 1 if date/time is not to be
+                                        ;   set from clock at CLOSE.  Set by
+                                        ;   FILETIMES and FCB_CLOSE.  Reset by
+                                        ;   other reseters of the dirty bit
+                                        ;   (WRITE)
+                                        ; Bit 13 = Pipe bit (reserved)
+                                        ;
+                                        ; Bits 0-7 (old FCB_devid bits)
+                                        ; If remote file or local file, bit
+                                        ; 6=0 if dirty Device ID number, bits
+                                        ; 0-5 if local file.
+                                        ; bit 7=0 for local file, bit 7
+                                        ;      =1 for local I/O device
+                                        ; If local I/O device, bit 6=0 if EOF (input)
+                                        ;               Bit 5=1 if Raw mode
+                                        ;               Bit 0=1 if console input device
+                                        ;               Bit 1=1 if console output device
+                                        ;               Bit 2=1 if null device
+                                        ;               Bit 3=1 if clock device
+sf_devptr       DD      ?               ; Points to DPB if local file, points
+                                        ; to device header if local device,
+                                        ; points to net device header if
+                                        ; remote
+sf_firclus      DW      ?               ; First cluster of file (bit 15 = 0)
+sf_time         DW      ?               ; Time associated with file
+sf_date         DW      ?               ; Date associated with file
+sf_size         DD      ?               ; Size associated with file
+sf_position     DD      ?               ; Read/Write pointer or LRU count for FCBs
+;
+; Starting here, the next 7 bytes may be used by the file system to store an
+; ID
+;
+sf_cluspos      DW      ?               ; Position of last cluster accessed
+sf_dirsec       DD      ?               ; Sector number of directory sector for
+                                        ; for this file
+sf_dirpos       DB      ?               ; Offset of this entry in the above
+;
+; End of 7 bytes of file-system specific info.
+;
+sf_name         DB      11 DUP (?)      ; 11 character name that is in the
+                                        ; directory entry.  This is used by
+                                        ; close to detect file deleted and
+                                        ; disk changed errors.
+
+; SHARING INFO
+sf_chain        DD      ?               ; link to next SF
+sf_UID          DW      ?
+sf_PID          DW      ?
+sf_MFT          DW      ?
+sf_lstclus      DW      ?               ;AN009; Last cluster accessed
+sf_IFS_HDR      DD      ?
+sf_entry        ENDS
+
+sf_fsda         EQU     BYTE PTR sf_cluspos          ;DOS 4.00
+sf_serial_ID    EQU     WORD PTR sf_firclus          ;DOS 4.00
+sf_netid        EQU     BYTE PTR sf_cluspos
+sf_OpenAge      EQU     WORD PTR sf_position+2
+sf_LRU          EQU     WORD PTR sf_position
+
+sf_default_number   EQU     5h
+
+;
+; Note that we need to mark an SFT as being busy for OPEN/CREATE.  This is
+; because an INT 24 may prevent us from 'freeing' it.  We mark this as such
+; by placing a -1 in the ref_count field.
+;
+
+sf_busy EQU -1
+
+
+; mode mask for FCB detection
+sf_isfcb                EQU     1000000000000000B
+
+; Flag word masks
+sf_isnet                EQU     1000000000000000B
+sf_close_nodate         EQU     0100000000000000B
+sf_pipe                 EQU     0010000000000000B
+sf_no_inherit           EQU     0001000000000000B
+sf_net_spool            EQU     0000100000000000B
+Handle_Fail_I24         EQU     0000000100000000B  ;BIT 8 - DISK FULL I24 ERROR
+
+; Local file/device flag masks
+devid_file_clean        EQU     40h     ; true if file and not written
+devid_file_mask_drive   EQU     3Fh     ; mask for drive number
+
+devid_device            EQU     80h     ; true if a device
+devid_device_EOF        EQU     40h     ; true if end of file reached
+devid_device_raw        EQU     20h     ; true if in raw mode
+devid_device_special    EQU     10h     ; true if special device
+devid_device_clock      EQU     08h     ; true if clock device
+devid_device_null       EQU     04h     ; true if null device
+devid_device_con_out    EQU     02h     ; true if console output
+devid_device_con_in     EQU     01h     ; true if consle input
+;                                                                          ;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+
+;
+; structure of devid field as returned by IOCTL is:
+;
+;       BIT     7   6   5   4   3   2   1   0
+;             |---|---|---|---|---|---|---|---|
+;             | I | E | R | S | I | I | I | I |
+;             | S | O | A | P | S | S | S | S |
+;             | D | F | W | E | C | N | C | C |
+;             | E |   |   | C | L | U | O | I |
+;             | V |   |   | L | K | L | T | N |
+;             |---|---|---|---|---|---|---|---|
+;       ISDEV = 1 if this channel is a device
+;             = 0 if this channel is a disk file
+;
+;       If ISDEV = 1
+;
+;             EOF = 0 if End Of File on input
+;             RAW = 1 if this device is in Raw mode
+;                 = 0 if this device is cooked
+;             ISCLK = 1 if this device is the clock device
+;             ISNUL = 1 if this device is the null device
+;             ISCOT = 1 if this device is the console output
+;             ISCIN = 1 if this device is the console input
+;
+;       If ISDEV = 0
+;             EOF = 0 if channel has been written
+;             Bits 0-5  are  the  block  device  number  for
+;                 the channel (0 = A, 1 = B, ...)
+;
+devid_ISDEV     EQU     80h
+devid_EOF       EQU     40h
+devid_RAW       EQU     20h
+devid_SPECIAL   EQU     10H
+devid_ISCLK     EQU     08h
+devid_ISNUL     EQU     04h
+devid_ISCOT     EQU     02h
+devid_ISCIN     EQU     01h
+
+devid_block_dev EQU     1Fh             ; mask for block device number