MS-DOS Feed - Programmer's Heaven

African Assembler (ASM++) 12.11

Fri, 23 Nov 2012 07:09:53 -0700

tinashh2007 submitted a new file.

The African Assembler has been updated to fully support PE32 and PE64. It now supports, MS-DOS COM, Raw Binary, DOS MZ, OMF 16-bit and 32-bit, PE32 and PE64. Currently under development is COFF 32 and 64-bit. Quite a number of tools and examples are included in this package. As we speak Im developing hybrid 32 and 64-bit operating system using ASM++ Enjoy

Re: Dos boot Hard drive failure

Mon, 07 Feb 2011 11:02:34 -0700

pseudocoder posted a reply on the MS-DOS forum.

DOS 6.22 needs a fat 16 partition (2 GB upper limit); if that's ok, try booting from the floppy and typing fdisk /mbr and then sys c:

The above shouldn't be used if you're using a partition manager, have a dual install, or more than 4 (I think it was) partitions.

It's possible the MBR is damaged.

Re: Adding windows calculator

Mon, 08 Nov 2010 14:19:34 -0700

pseudocoder posted a reply on the MS-DOS forum.

add a label

if %choose% == C goto calc
if %choose% == c goto calc

:calc
run %windir%\system32\calc.exe
goto calc_end
:other labels
...
...
:calc_end

try something like that; it looks like it's defaulting to a shutdown because of being included inside of :begin

Re: DOS Help for Beginner

Fri, 10 Sep 2010 04:46:06 -0700

AsmGuru62 posted a reply on the MS-DOS forum.

1. Open the source file with fopen()
2. Create the target file with fopen()

3. Read source line with fgets()
4. Find the marker where you need to truncate the line (strchr() or strstr())
5. Truncate the line by storing zero AFTER the marker you have found
6. Append '\n' character to the line with strcat()
7. Write the truncated line to target file with fputs()

8. Repeat all steps starting from step #3 until there are no more lines left in source file.

9. Close both files with fclose()

Re: Can I decompile an old ms-dos program

Mon, 26 Apr 2010 04:41:59 -0700

AsmGuru62 posted a reply on the MS-DOS forum.

Not sure if it is possible to detect the language. And why language is important for you? You can only turn it into assembler - one language only.

Re: Can I decompile an old ms-dos program

Sat, 24 Apr 2010 16:59:05 -0700

AsmGuru62 posted a reply on the MS-DOS forum.

Use GOOGLE and find disassemblers for MS-DOS.

Re: NEED CODE TO SPECIFY ONLY THE FILE I NEED TO COPY IN A FOLDER

Tue, 29 Dec 2009 05:17:57 -0700

AsmGuru62 posted a reply on the MS-DOS forum.

Link to HELP PC online:
http://docs.huihoo.com/help-pc/int-int_21.html

You need to enumerate all files in your folder with these services:
AH=4Eh (Find First File)
AH=4Fh (Find Next File)

During these calls DOS will fill the information about each file into DTA object (which can be set by AH=1Ah service). That object has DATE & TIME of the file. Use it to select only the files needed for copying.

detecting hard disks?

Fri, 13 Nov 2009 02:17:47 -0700

vlad777 posted a new message on the MS-DOS forum.

How do i detect installed hard drives
on the computer?
Is there a bios call to do this?
Also how is this done from windiws api?
Thanks.

Re: unable to set variable in DOS batch file

Tue, 25 Aug 2009 02:41:06 -0700

anthrax11 posted a reply on the MS-DOS forum.

There are two practical ways to pass variables to batch files, either by parameters(%1, %2) or by environment variables(%PATH%, etc.), which is what you seem to be doing. In linux scripts and several programming languages(Perl, PHP), variables are referred to with the $ prefix. In batch files(.bat), variables are referred to by double percent signs and the dollar sign has a completely different meaning.

What's confusing is you're saying it's a DOS batch file. I don't know if you're confusing it for a linux shell script or a windows batch script, but what I know is that there is no MySQL for DOS. You said using dollar signs around MYSQL_PATH fixed the first problem, so why does that suddenly not work now?

Re: unable to set variable in DOS batch file

Mon, 24 Aug 2009 02:24:26 -0700

anthrax11 posted a reply on the MS-DOS forum.

There a few different ways to do this:

if defined MYSQL_PATH goto isdefined

or:
set MPATH=%MYSQL_PATH%
if defined MPATH goto isdefined

or:
set MPATH=%MYSQL_PATH%
if not "%MPATH%"=="" goto isdefined

If MYSQL_PATH isn't defined, then "set MPATH=%MYSQL_PATH%" is equivalent to "set MPATH=", which undefines MPATH.

One other thing. Although the principles are the same, a Windows command prompt is not a DOS command prompt.

Re: unable to set variable in DOS batch file

Sun, 23 Aug 2009 06:01:54 -0700

anthrax11 posted a reply on the MS-DOS forum.

Use percent signs to refer to variables and don't put spaces next to the equal sign:
set MPATH=%MYSQL_PATH%

Then you can use echo "%MPATH%" or echo %MPATH% to print it.

Re: DOS 6.22 Disks 1 - 3

Thu, 07 May 2009 12:09:58 -0700

anthrax11 posted a reply on the MS-DOS forum.

http://thepiratebay.org/torrent/4410496/MS-DOS_6.22_(English)

Care to explain why you need it in 2009? :)

Re: Compile a DOS C++ file in Windows

Fri, 10 Apr 2009 04:47:17 -0700

AsmGuru62 posted a reply on the MS-DOS forum.

Windows has a DOS Virtual Machine (NTVDM). Most of DOS application code will run fine inside it, however, if the code does some hardware things, like writing to ports, which are "owned" by Windows or some other driver level code - this will not work properly inside NTVDM.

My old Turbo C graphics programs from the 90s are still running fine.

Re: Compile a DOS C++ file in Windows

Thu, 09 Apr 2009 04:30:54 -0700

AsmGuru62 posted a reply on the MS-DOS forum.

Latest VC++ is only for Windows.

You need a DOS compiler, I mean the old compiler, like Turbo C++ or Visual C++ 1.5 or something like that... (Watcom DOS works too)

Re: 640000?

Sun, 05 Apr 2009 12:22:46 -0700

Actor posted a reply on the MS-DOS forum.

: :So why did Microsoft chose 640000 bytes as the upper limit for DOS?
:
: Because Bill Gates said so :) : "640 kb ought to be enough for
: everybody."
:
: But it's not M$, it comes from the original PC hardware design:
: http://en.wikipedia.org/wiki/Conventional_memory
:
Your response brings more questions.

My first PC was an XT with 640K RAM. The user manual explicitly stated that memory could be expanded to 1Meg by purchasing additional chips. There were empty sockets on the motherboard to take the ships. There was a caveat that only "special software" could access this additional memory. But obviously the memory was simply not there. It was not being used by hardware.

???

640000?

Fri, 03 Apr 2009 22:52:12 -0700

Actor posted a new message on the MS-DOS forum.

You need 19 lines in an address buss to access half a megabyte. 20 lines addresses a full megabyte.

So why did Microsoft chose 640000 bytes as the upper limit for DOS? It's more than 19 lines can handle so you need 20 lines. Why did they just throw away 360000 bytes?

Re: Dos exe with no command line arguments

Thu, 22 Jan 2009 10:33:05 -0700

iyercb posted a reply on the MS-DOS forum.

It is quite possible that the program is written in such a way that it prompts for input after each step. In this case, there is not much you can do.

Anyway try this bat file

rem @echo off
rem calling protocol: ExecuteDecode.bat version inputfilepath outputfilepath
:Start
IF "%1" == "" GOTO ErrorNoVersion
IF "%2" == "" GOTO ErrorNoInputFilePath
IF "%3" == "" GOTO ErrorNoOutputFilePath
echo Executing Decode
decode %1 %2 %3
pause
goto Exit
:ErrorNoOutputFilePath
echo You did not enter an Output File Path
pause
goto Exit
:ErrorNoInputFilePath
echo You did not enter an Input File Path
pause
goto Exit
:ErrorNoVersion
echo You did not enter a Version
pause
:Exit

Re: ms dos 'move' to c

Wed, 26 Nov 2008 17:18:56 -0700

MT2002 posted the message 'Re: ms dos 'move' to c' on the C and C++ forum.

: I want to convert the ms-dos command 'move' into c . Could you help
: me?

Win32 API MoveFile()?

EQTXT.ZIP

Wed, 12 Nov 2008 08:17:30 -0700

W.T.Kupchik submitted a new file called 'EQTXT.ZIP'.

EQ.TXT contains useful EQ.COM program data and, if you don't have MASM, an uncommented SCR program for assembling EQ.COM using DEBUG.EXE (MS-DOS). See EQ.ASM for additional information.

EQCOM.ZIP

Wed, 12 Nov 2008 08:17:25 -0700

W.T.Kupchik submitted a new file called 'EQCOM.ZIP'.

EQ.COM is a small, 869 byte DOS command line conversion utility that automatically displays all valid equivalents of bases 2, 8, 10 and 16. Since it classifies the intrinsic base of a %1 number internally, EQ doesn't require entry of any base-designator in %2. See EQ.TXT & EQ.ASM for complete overview of EQ.COM program.

EQASM.ZIP

Wed, 12 Nov 2008 08:17:19 -0700

W.T.Kupchik submitted a new file called 'EQASM.ZIP'.

EQ.ASM was written with MASM (Ver 6.1). See EQ.TXT for comprehensive details concerning the EQ.COM program.

EQREADME.ZIP

Wed, 05 Nov 2008 05:07:20 -0700

W.T.Kupchik submitted a new file called 'EQREADME.ZIP'.

EQREADME.TXT contains useful information about how the EQ.COM program functions on the DOS command line. See EQ.ASM for source code.

EQ_COM.ZIP

Wed, 05 Nov 2008 05:06:29 -0700

W.T.Kupchik submitted a new file called 'EQ_COM.ZIP'.

EQ.COM is a small, 876 byte DOS command line conversion utility that automatically displays all valid equivalents of bases 2, 8, 10 and 16. Since it classifies the intrinsic base of a %1 number internally, EQ doesn't require entry of any base-designator in %2. See EQREADME.TXT for further program details.

EQ_ASM.ZIP

Wed, 05 Nov 2008 05:05:39 -0700

W.T.Kupchik submitted a new file called 'EQ_ASM.ZIP'.

EQ.ASM was written using MASM (Version 6.1) to produce the EQ.COM assembly program. See EQREADME.TXT for full program details.

File exchange between DOS and OS-X

Fri, 31 Oct 2008 15:06:31 -0700

Actor posted the message 'File exchange between DOS and OS-X' on the MS-DOS forum.

I would like to find a way to transfer files between a machine running DOS 6.22 and a Mac running OS-X. Presently I do it by copying the file to a floppy and passing the floppy between the two machines. That's getting tiresome. Could the two machines be networked together?

EQTXT.ZIP

Sun, 19 Oct 2008 08:21:41 -0700

W.T.Kupchik submitted a new file called 'EQTXT.ZIP'.

EQ.TXT contains useful EQ.COM program data and, if you don't have MASM, an uncommented SCR program for assembling EQ.COM using DEBUG.EXE (MS-DOS). See EQ.ASM for additional information.

EQCOM.ZIP

Sun, 19 Oct 2008 08:06:40 -0700

W.T.Kupchik submitted a new file called 'EQCOM.ZIP'.

EQASM.ZIP

Sun, 19 Oct 2008 07:52:32 -0700

W.T.Kupchik submitted a new file called 'EQASM.ZIP'.

EQ.ASM was written with MASM (Ver 6.1). See EQ.TXT for comprehensive details concerning the EQ.COM program.

EQREADME.ZIP

Wed, 10 Sep 2008 11:19:24 -0700

W.T.Kupchik submitted a new file called 'EQREADME.ZIP'.

EQREADME.TXT contains useful information about how the EQ.COM program functions on the DOS command line. See EQ.ASM for source code.

EQ_COM.ZIP

Wed, 10 Sep 2008 11:14:11 -0700

W.T.Kupchik submitted a new file called 'EQ_COM.ZIP'.

EQ_ASM.ZIP

Wed, 10 Sep 2008 11:07:23 -0700

W.T.Kupchik submitted a new file called 'EQ_ASM.ZIP'.

EQ.ASM was written using MASM (Version 6.1) to produce the EQ.COM assembly program. See EQREADME.TXT for full program details.

Rename multiple files

Mon, 08 Sep 2008 04:57:57 -0700

Halleluuja posted the message 'Rename multiple files' on the MS-DOS forum.

Hello,

I would need some help with writing the .bat file that renames all files with same extension (let's say .jpg) in one folder as numeric row.

The original files are:
somefile.jpg
anotherfile.jpg
onemorefile.jpg
. . . . .
(and so on)

And the result supposed to be:
1.jpg
2.jpg
3.jpg
. . .
(etc)

Any ideas?

Thank you

EQREADME.ZIP

Sat, 30 Aug 2008 08:35:25 -0700

W.T.Kupchik submitted a new file called 'EQREADME.ZIP'.

EQREADME.TXT contains useful information about how the EQ.COM program functions on the DOS command line. See EQ.ASM for source code.

EQ_COM.ZIP

Sat, 30 Aug 2008 08:18:58 -0700

W.T.Kupchik submitted a new file called 'EQ_COM.ZIP'.

EQ_ASM.ZIP

Sat, 30 Aug 2008 07:51:46 -0700

W.T.Kupchik submitted a new file called 'EQ_ASM.ZIP'.

EQ.ASM was written using MASM (Version 6.1) to produce the EQ.COM assembly program. See EQREADME.TXT for full program details.

Re: Compress File usng Windows Utility

Sun, 24 Aug 2008 09:59:45 -0700

Cindex posted the message 'Re: Compress File usng Windows Utility ' on the MS-DOS forum.

I'm pretty sure wherever you read had it a little bit wrong. The COMPACT command does make it smaller, but slower to read. it works the same way as a ZIP and is still effective.

PHP has a unzipping command, but I don't think Windows does.
function Me() {
str1 = "ActionScript"; str2 = "PHP";
trace(str1.concat(str2)); }
Output: Skills.

QuadraticSolver

Fri, 25 Jul 2008 05:14:15 -0700

bilderbikkel submitted a new file called 'QuadraticSolver'.

Tool (console/DOS) to show the solutions of a quadratic equation.

confirm file was transferred

Thu, 10 Jul 2008 14:20:45 -0700

spowel4 posted the message 'confirm file was transferred' on the MS-DOS forum.

I have the following batch file which is run once daily:

@echo off
ftp -i -s:nsg.ftp xxx.xxx.xxx.xxx
set mmddyy=%date:~4,2%%date:~7,2%%date:~12%
move c:\scale\cai\jws\apex\1\1\xout\1.tsf c:\jwsarchive\%mmddyy%.tsf
move c:\scale\cai\jws\apex\1\1\xout\1.tmf c:\jwsarchive\%mmddyy%.tmf
@echo finished

Is there a way, within this same batch file, to verify the ftp transfer was successful and then and only then, proceed with the archiving steps?

Re: Printing from DOS

Wed, 02 Jul 2008 01:43:32 -0700

Chinkha posted the message 'Re: Printing from DOS' on the MS-DOS forum.

It appears my problem is a common known conflict between modern printers and old DOS programs. I found several articles cover this question.

There are several third-party software utilities which
announce DOS program printing support (dosprint, dosprn, printfil)

I evaluated them and I am not to be particularly enthusiastic. One of them
print text files only, another did nothing at me, next printed
corectly text part of my document but garbage instead of a graphics.

At last I choose a dosprn dos print utility for me. It printed my text and charts more or less correctly and it is the most inexpensive between competitors. Unfortunately dosprn has no
'print preview' option but in the final analysis I don't need in this
feature extremely.

: I googled and found claims the source of my problem is in my printer
: which is not DOS-compatible device and cannot print plain text.

Storing a directory path in a variable

Mon, 30 Jun 2008 12:54:19 -0700

jwondrusch posted the message 'Storing a directory path in a variable' on the MS-DOS forum.

Hi all - first post at programmersheaven.com!

I've been developing a small backup utility that relies on the 7-zip command line utility. It all works well but I'm hoping to streamline it a bit, as well as making it easier to update because it may be used in multiple locations and networks.

So my first question is, is it possible to store a directory path as a variable? For example, I'd like to be able to put C:\Documents and Settings\User Name\Desktop\ into the variable %backupDir% but I've been able to use it as such. I'd like to use that to change to the directory i'm backing up via the cd command:

cd %backupDir%

I've tried using CHDIR as well, to no avail. I've tried using quotes, using %20 instead of spaces, tried using %userprofile% for the first part of the path and I haven't had any success using variables instead of absolute or relative paths. Please help?

The second question I have is regarding error catching. Is it possible to use batch to monitor the 7-zip utility and to cancel it if it encounters an error? or do I have to let it run the entire way and then cancel the results at the end?

Thanks for any help you may be able to ovver

Printing from MS-Dos Application Issues

Mon, 23 Jun 2008 17:47:26 -0700

bbennett posted the message 'Printing from MS-Dos Application Issues' on the MS-DOS forum.

I am now running a DOS application in Windows XP. Printer is config as lpt1, ECP, prints from windows xp, however, does not print from dos . Any ideas?