EPICS Home EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

Format page
for printing


Search Tech-talk
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  <2005>  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  <2005>  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>
Subject: Re: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants?
From: Ralph Lange <[email protected]>
To: Jeff Hill <[email protected]>
Cc: "'Dirk Zimoch'" <[email protected]>, EPICS Tech Talk <[email protected]>
Date: Wed, 09 Feb 2005 17:15:40 +0100
Jeff,

is that true for all target architectures or just for the PPC arch that Dirk is seeing this on?

Ralph


Jeff Hill wrote:

Dirk,

I don't know if anyone has made this suggestion, but
watch out for a driver that uses floating point in its
interrupt service routines as, on vxWorks, the FP
register contents are not saved / restored when entering
/ exiting interrupt context. The driver must do this
manually if it finds a need to use FP in its ISR.

Jeff


Replies:
RE: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants? Jeff Hill
References:
RE: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants? Jeff Hill
Navigate by Date:
Prev: RE: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants? Jeff Hill
Next: RE: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants? Jeff Hill
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  <2005>  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: RE: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants? Jeff Hill
Next: RE: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants? Jeff Hill
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  <2005>  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 02 Sep 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·