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From:	"Gerrit van Niekerk" <gerritvn AT gpvno DOT co DOT za>
Organization:	GPvNO
To:	djgpp AT delorie DOT com
Date:	Thu, 23 Mar 2006 21:10:29 +0200
MIME-Version:	1.0
Subject:	Problem with POPF
Message-ID:	<44230EC5.29794.1B0CA569@gerritvn.gpvno.co.za>
X-mailer:	Pegasus Mail for Windows (4.31)
Reply-To:	djgpp AT delorie DOT com

To protect portions of code from interrupts, I use PUSHF and CLI to be 
certain interrupts are disabled and POPF to re-enable them. This used to 
work without a problem until I started writing a comms port handler. As soon 
as I initialize the comms port, the next POPF causes a SIGTRAP. GDB tells 
me it is a Trace/breakpoint trap.

This probably has more to do with the 80x86 architecture than DJGPP, but 
perhaps somebody can point me in the right direction.

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