classiccmp knowledgebase - test-drb@ccmp.vtda.org

1 Aug 2005

...
 From: "John Foust" <jfoust at
threedee.com>

At 01:54 AM 8/1/2005, you wrote:
>Wouldn't it be easier to just issue two MODE commands to redirect COM1: to 
CON, then feed debug a script to write out binary files?
...

Hey, that's why I think it would be a useful and interesting FAQ.
I thought the other guy's CTRL/Z preservation method was quite
cute, too.  I'm intrigued by solutions that would require a 
minimum of prep or magic tools on the sending PC.  

- John

Hi
 The only time I did anything like this, I used
LapLink. One copied a file from the com to a
text file and then rename changed it to a *.com file that
was the bootstrap loader for the rest of LapLink.
The bootstrap file must have avoided anything with
a ^z as part of the binary. Similar things can
be done for most any setup, requiring no magic tools
on the sending side.
 Code with ^Z's in them can be escaped such that the
loader program can change these to the right binary
value. The sending program could then be any generic
'copy to comm' program.
Dwight