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echo: os2prog
to: Vitus Jensen
from: Dan Larson
date: 1994-06-19 11:51:30
subject: DEBUGGING & 2.99 BETA

VJ>Fernando Saldanha wrote in a message to All:

 FS> I installed the Debug kernel and was able to use the Borland
 FS> debugger. Unfortunately, the Debug kernel uses a COM port
 FS> for output (I don't know why). If the machine has only one
 FS> COM port it uses COM1, if it has two, it uses COM2. In my
 FS> case, my modem is connected to COM2. Due to this, I was
 FS> unable to continue using my modem. I was still able to dial
 FS> and access BBSs, but as I attempted to do a download the
 FS> whole system would freeze after a few characters. CAD would
 FS> not work, so I had to press the reset button.
VJ>Debugger waits for commands.

 FS> As I reinstalled the standard kernel, the problem disappeared.
 FS> By the way, I tried a couple of different BBSs with the same
 FS> results.

 FS> Is there any way to fix these problems, either by having the
 FS> standard kernel support DosDebug, or by preventing the Debug
 FS> kernel from sending output to COM2? Thanks for any help.

VJ>There is no way to use the debug kernel when receiving data from COM2. The
VJ>debug kernel (really a whole debugger) waits for Ctrl-C (ASCII 3) appearing
VJ>on COM2 to enter the debugger (# prompt). This Ctrl-C character will sooner
VJ>or later appear in your download and your system freezes.
VJ>Somebody should type a "g\n" to COM2 to continue 

VJ>It is a nice thing to debug drivers but in your case you have to find a way
VJ>to use the standard kernel.


VJ>Tschuesz,
VJ>           Vitus

VJ>

Does this problem with 2.99 then make it useless to programmers using debuggers
who only have one machine to work with ? IPMD will not work on the local machin
using the 2.99 beta? That sure canels my pans to check 2.99 out. :~(


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