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- APPENDIX: The Accompanying Files
-
-
- OVERVIEW OF THE ACCOMPANYING FILES
- ==================================
-
- Besides the individual chapter text files, ETHAN.ZIP contains all of the
- example code, BASIC programs, and assembly language source files used in
- this book. The example BASIC files have names like CHAPn-n.BAS, where the
- first part of the name indicates which chapter the example was used in, and
- the second part is the listing number within that chapter. The remaining
- BASIC files use more descriptive names, and those are the ones you're most
- likely to actually use and add to your own programs. Likewise, the shorter
- assembly language examples from Chapter 12 are in files named CHAP12-n.ASM,
- but source code for the complete routines are in files having names based
- on the actual routine names.
- The library files named BASIC.* are meant for use with QuickBASIC
- version 4.0 or later, and the files named BASIC7.* are for use with BASIC
- PDS and VB/DOS. Files with a .QLB extension are Quick Libraries that you
- load along with QB.EXE or QBX.EXE or VBDOS.EXE, depending on your version
- of BASIC. The .LIB files are intended for use with LINK, when you create
- executable programs. There are also a few .BI (BASIC Include) and .MAK
- (Make) files used to support some of the programs. I did not bother to
- include separate .OBJ files for the assembly language routines, since you
- can easily extract them from BASIC.LIB or BASIC7.LIB if you need them.
-
-
- STARTING BASIC
-
- To start QuickBASIC and load the BASIC.QLB library, enter this from the DOS
- command line:
-
- qb [program] /l basic.qlb /ah
-
- If you specify the optional BASIC source program name, that is loaded into
- the QuickBASIC editor along with the BASIC.QLB library. The /ah switch
- tells QuickBASIC to allow huge (greater than 64K) arrays, which is needed
- for some of the demonstration programs.
- If you are using BASIC PDS, start QBX as follows:
-
- qbx [program] /l basic7.qlb /ah /es
-
- The /es switch is needed for the EMS.BAS demonstration, and it tells QBX to
- cooperate with your use of Expanded memory. When /es is omitted, QBX
- assumes no other programs are using EMS, which lets it access that memory
- slightly faster. Since EMS.BAS stores its sample data in Expanded memory,
- this option is needed to avoid corrupting EMS memory. Even if you do not
- plan to run EMS.BAS, using /es is harmless.
- If you have VB/DOS you should start it like this:
-
- vbdos [program] /l basicvbd.qlb /ah /es
-
- Once the appropriate Quick Library has been loaded, you may use the File
- Open menu sequence to load the BASIC programs. Note that with VB/DOS, the
- Open menu defaults to a .MAK extension, so you'll have to enter *.BAS or
- type the complete name of a BASIC program source file.
- Some of the example programs use BASIC's CALL Interrupt command, and
- to run those you will have to quit the BASIC editor, and restart it loading
- the default Quick Library that comes with your version of BASIC. You do
- not need to specify a Quick Library name when loading the default library;
- using only the /l switch is sufficient.
-
-
- LINKING
-
- When you compile and link programs manually from the DOS prompt and you
- want to use the .LIB libraries supplied with this book, you must specify
- the library name manually on the LINK command line:
-
- link program [/options] , , nul, basic[7] ;
-
- The BASIC7 library works with both BASIC PDS and also VB/DOS, so it was not
- necessary to provide a separate BASICVBD.LIB file. You can also compile
- and link from within the QuickBASIC or QBX editors using the menu options.
- When a Quick Library is loaded, the BASIC editor uses the same first name
- for the LINK library when it shells to run BC and LINK. For example, if
- you started QBX like this:
-
- qbx /l basic7.qlb
-
- QBX tells LINK to use a parallel .LIB library named BASIC7.LIB. But since
- there is no BASICVBD.LIB file you must compile and link manually when using
- VB/DOS. If you don't use BASIC PDS you can optionally rename BASIC7.LIB to
- be BASICVBD.LIB. Then when you start VB/DOS as shown above it can specify
- the correct library name when it shells to LINK.
- The BASIC editor limits you to using either the Quick Library from
- this book *or* BASIC's version that contains CALL Interrupt--you cannot
- load two Quick Libraries at one time. However, you can link with more than
- one library when creating an executable program manually. This example is
- for QuickBASIC, and you would substitute QBX.LIB and BASIC7.LIB with PDS,
- or VBDOS.LIB and BASIC7.LIB when using VB/DOS:
-
- bc program [/o] ;
- link [/options] program [other modules], , nul, qb.lib basic.lib ;