0cd CD-Rom Emulator v7.1 with Asm/Pascal sourcecode description
CD is a small resident utility which emulates MSCDEX in a way I have not found in any other emulator.
How to use 0CD
=================--------------------------------------------------------------
0CD works by way of command line parameters and is therefore best suited in
a batch file. The format of the 0CD command line is as follows:
0CD [options] <directory> [<directory> ... ]
Ignore the [options] part for now; we'll get back to it later. The important
part is <directory>. You fill out the <directory> part with a valid directory.
0CD will create a new drive and redirect this drive to the given directory.
This drive will automatically look like a cd-rom to any program that checks
this.
Example:
0CD C:\TEMP
This command line will tell 0CD to create a new drive. This drive will really
lie in the C:\TEMP directory.
On the 0CD command line shown above, you can also see that the parameter
<directory> can be repeated. This is denoted with [<directory> ... ]. You can
supply up to 8 such parameters at one time to 0CD, creating at most 8 cd-rom
drives. The cd-rom drives can all be directed to different directories or the
same as seem fit. Example follows:
0CD C:\CD1&2 C:\CD1&2 C:\CD3
Here, 0CD will create 3 cd-rom drives. The first two will be redirected to the
same directory, C:\CD1&2. The third cd-rom drive will be redirected to the
directory C:\CD3.
When 0CD has created all cd-rom drives, and settled into your computer, it
does one of two things:
if a file called 0CDSTART.BAT (or a user-supplied program file) exists in
the current directory, 0CD starts it. When execution of this file is
finished, 0CD unloads itself from memory.
if the file doesn't exist, 0CD starts up your current command line shell
(usually COMMAND.COM or 4DOS.COM). When this shell exits, 0CD unloads itself
from memory.
5. 0CD valid options
====================-----------------------------------------------------------
0CD can also respond to various options on the command line. The options can
be given before all <directory> in between the <directory> parameters, or
after the <directory> parameters, but note that they only take effect on the
<directory> parameters which comes after the options. See the text below on
the -q option to see how this works.
Each option will get it's own subchapter here, for optimal clarity and easier
reference later on.
5.1. 0CD option: -Q
===================------------------------------------------------------------
The simplest option for 0CD is the -Q option. This option tells 0CD to not
print any text on the screen (QUIET operation). Above it was explained that
options only takes effect on any parameters which comes after them, and here
are some examples on that:
0CD -Q C:\TEMP
This example will not print any text on the screen.
0CD C:\TEMP1 -Q C:\TEMP2
This example will print text on the screen up to the point it reaches -Q. This
means that you will not notice that two drives has been created, only one
(C:\TEMP1), and you will not see the uninstall message.
File List:
0CD.COM
9Kb
0CD.DOC
23Kb
CRUNCH.COM
8Kb
MAKECD.EXE
5Kb
RIPCD.EXE
12Kb
SOURCE/
0b
SOURCE/0CD.ASM
73Kb
SOURCE/MAKECD.PAS
2Kb
SOURCE/RIPCD.PAS
8Kb
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