APPNOTE: Increase Number of File Handles, FORTRAN 5.0 and 5.1

• Microsoft FORTRAN for MS-DOS, versions 5.0 and 5.1
• Microsoft FORTRAN for OS/2, versions 5.0 and 5.1

SUMMARY

To obtain the application note "Increasing the Number of File Handles in FORTRAN 5.0/5.1 with Large Model Libraries," call Microsoft Product Support Services.

This application note is also available in the Microsoft Software Library.

Download HF0304.EXE, a self-extracting file, from the Microsoft Software Library (MSL) on the following services:

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        Download HF0304.EXE (size: 35423 bytes) 
  

• Internet (anonymous FTP)

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        Change to the \softlib\mslfiles directory
        Get HF0304.EXE (size: 35423 bytes) 
  

The following is the text of the application note:

    Microsoft Product Support Services Application Note (Text File)
           HF0304: INCREASING THE NUMBER OF FILE HANDLES IN
         FORTRAN 5.0 AND 5.1 WITH LARGE MEMORY MODEL LIBRARIES

                                                  Revision Date: 10/91
                                                         Disk Included

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INTRODUCTION

The following files are included on the enclosed HF0304 disk:

   Directory               Filename       Description
   ---------               --------       -----------

   \FORT500\F120           UNIT.OBJ       Modified UNIT.ASM for 120
                                          file handles to be linked
                                          with DOS or OS/2 executable
                                          files

   \FORT500\F120\DOS       CRT0DAT.OBJ    Modified CRTODAT.ASM for 120
                                          file handles to be linked
                                          with DOS executable files

   \FORT500\F120\OS2       CRT0DAT.OBJ    Modified CRTODAT.ASM for 120
                                          file handles to be linked
                                          with OS/2 executable files

   \FORT500\F50            UNIT.OBJ       Modified UNIT.ASM for 50
                                          file handles to be linked
                                          with DOS or OS/2 executable
                                          files

   \FORT500\F50\DOS        CRT0DAT.OBJ    Modified CRTODAT.ASM for 50
                                          file handles to be linked
                                          with DOS executable files

   \FORT500\F50\OS2        CRT0DAT.OBJ    Modified CRTODAT.ASM for 50
                                          file handles to be linked
                                          with OS/2 executable files

   \FORT510                UNIT.OBJ       Modified UNIT.ASM for 64
                                          file handles to be linked
                                          with Windows executable
                                          files or Windows DLLs

   \FORT510                CRT0DATD.OBJ   Modified CRTODAT.ASM for 64
                                          file handles to be linked
                                          with Windows DLLs

   \FORT510                CRT0DATL.OBJ   Modified CRTODAT.ASM for 64
                                          file handles to be linked
                                          with Windows executable
                                          files

FORTRAN VERSION 5.0

Increasing the Number of File Handles to 50 -- DOS or OS/2

1. Add the file CRT0DAT.OBJ to your current directory. This file is located on the enclosed HF0304 disk in the \FORT500\F50\DOS directory (or the \FORT500\F50\OS2 directory, if you are using FORTRAN with OS/2).

2. Add the file UNIT.OBJ to your current directory. This file is located on the enclosed HF0304 disk in the \FORT500\F50 directory.

3. Change the FILES=<number> line in your CONFIG.SYS file to read as follows:

         FILES=50
   

   Add this line to your CONFIG.SYS file if the line does not exist. Reboot the machine so the new FILES= statement takes effect.

4. Link the .OBJ files with the FORTRAN.OBJ file using the following statement

         LINK /NOE <QUUX.OBJ> + UNIT.OBJ + CRT0DAT.OBJ;
   

   where <QUUX.OBJ> is the FORTRAN object code.

5. Alternatively, for a more permanent change, you can replace these object modules in the run-time library <libraryname> as follows:

         LIB <libraryname> -+UNIT.OBJ -+CRT0DAT.OBJ;
   

Increasing the Number of File Handles to 120 -- DOS or OS/2

1. Add the file CRT0DAT.OBJ to your current directory. This file is located on the enclosed HF0304 disk in the \FORT500\F120\DOS directory (or the \FORT500\F120\OS2 directory, if you are using FORTRAN with OS/2).

2. Add the file UNIT.OBJ to your current directory. This file is found on the enclosed HF0304 disk in the \FORT500\F120 directory.

3. Change the FILES=<number> line in your CONFIG.SYS file to read as follows:

         FILES=120
   

   Add this line to your CONFIG.SYS file if the line does not exist. Reboot the machine so the new FILES= statement takes effect.

4. Link the .OBJ files with the FORTRAN.OBJ file using the following statement

         LINK /NOE <QUUX.OBJ> + UNIT.OBJ + CRT0DAT.OBJ;
   

   where <QUUX.OBJ> is the FORTRAN object code.

5. Alternatively, for a more permanent change, you can replace these object modules in the run-time library <libraryname> as follows:

         LIB <libraryname> -+UNIT.OBJ -+CRT0DAT.OBJ;
   

FORTRAN VERSION 5.1

Increasing the Number of File Handles to 64 -- DOS or OS/2

The document FILEHAND.DOC, contained on the Microsoft FORTRAN version 5.1 distribution Disk 5, describes where to find the object modules on the distribution disks to increase the number of file handles to 64 for both DOS and OS/2. The document also describes the process of linking these object modules with the executable file.

Increasing the Number of File Handles to 64 -- Windows

The files CRT0DATD.OBJ and CRT0DATL.OBJ, shipped with Microsoft FORTRAN version 5.1, may generate an L2029, L2044, or L2025 error during link time when attempting to increase the number of file handles to 64 for a Windows executable file. The files CRT0DATD.OBJ and CRT0DATL.OBJ on the enclosed HF0304 disk are corrections for the object modules shipped with Microsoft FORTRAN 5.1.