From: Scott Robinson <scott_gdb@scott.tranzoa.net>
To: gdb@sources.redhat.com
Subject: i8086 debugging issues.
Date: Thu, 22 Sep 2005 04:10:00 -0000 [thread overview]
Message-ID: <20050922041001.GA11595@localhost.localdomain> (raw)
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I am attempting to debug i8086 (16-bit) code with gdb, but am running
into a problem. This problem occurs with the gdb remotes in both bochs
and qemu.
My issue is the program counter. Specifically, $pc is mapped to $eip -
which isn't strictly valid in 16-bit mode. To obtain information about
the actual current $pc, I need to perform the calculation manually.
(($cs << 4) + $eip)
Manually setting $pc causes the system to panic, obviously. :-(
In short, is there a way to make gdb cognizent of the segment registers?
Scott.
--
http://quadhome.com/ - Personal webpage
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reply other threads:[~2005-09-22 4:10 UTC|newest]
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