| 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 2025 | 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 2025 |
| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Re: compiler bug in gcc version 2.8.1 (Tornado1) for PPC corrupts floationg point constants? |
| From: | Dirk Zimoch <[email protected]> |
| To: | Kay-Uwe Kasemir <[email protected]>, "'EPICS Tech Talk'" <[email protected]> |
| Date: | Thu, 10 Feb 2005 15:15:37 +0100 |
Hello:
Having learned the hard way, I'm now quite aware of the VX_FP_TASK option for vxWorks' taskCreate().
To be save inside ISR code, no matter how the compiler optimizes your non-floating point code: Are there vxWorks subroutines or asm(...)-type macros that allows me to save/restore the FP registers? If not, does anybody know the asm(..) lines that would work on a PPC CPU?
But I still don't believe that this is my problem. Im doing further tests. Dirk
-- Dr. Dirk Zimoch Swiss Light Source Paul Scherrer Institut Computing and Controls phone +41 56 310 5182 fax +41 56 310 4413