Subject: Re: An idea using emulation
From: "John J. Cruz" <>
Date: Fri, 23 Apr 1999 17:25:58 -0400

I'm not sure if you're aware but it is not just the lack of a Linux driver
that makes winmodems not good devices to use.     The winmodem I believe
lacks a UART and this function is performed by the cpu.  This is one reason
you are required to have a Pentium as a minimum.  There are other factors
but this is enough reason to buy a real modem.  This trend of designing
hardware out of software is spilling into printers, sound cards, etc.


Dean Beeler wrote:

> Hey, this may be just a shot in the dark, but I think this has a
> possiblity.  Perhaps there are better ways of doing this, but I have
> found that if I use DOSEmu to monitor the ports where my U.S. Robotics
> 33.6K Winmodem are located, I can, of course, trap the port accesses.
> My idea is that this could be used as a start to reverse engineer the
> U.S. Robotic's DSP, am I correct?  Another "emulation" observation is
> that using Wine, I am able to correctly load the WinModem driver files,
> unfortuanetly, there lacks any way to communicate to the drivers so
> simply loading them is worthless, but it this too, is a start, I
> believe.
> I just recently joined the discussion group and I am not aware as to how
> much this has been discussed so feel free to quickly shoot down any of
> my ideas.
> Dean