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Subject: Re: mv162 only
From: jemian@arev.uni.aps.anl.gov (Pete Jemian)
To: barker@ligo.caltech.edu, tech-talk@aps.anl.gov
Date: Fri, 7 Jun 96 18:40:45 CDT
> the mv162 has the 68LC040 CPU with no hardware floating point
> support.
> 
> To run EPICS (which uses floating point calculations), you must have
> a VxWorks kernel with the software floating point emmulation installed.
> Epics needs to be built knowing that software FP is to be used, this
> is done using the -msoft-float compiler flag.
> 
> Building VxWorks for software FP support requires the fpSoft040.c
> file for 5.1.1 and a new library file libMC68040gnuvx.
> 
> The flag INCLUDE_SW_FP also needs to be set in configAll.h.
> 
> hope this helps,
> 
> Dave Barker.
> 
Hmmm...

My VxWorks v5.2 does not have a file fpSoft040.c
Is this a difference between 5.1.1 and 5.2
or could it be a BSP option?

Also, my mv162 is a MVME 162-042.
Don't they have the floating point support built-in?
(It was left out on the LC to speed the 68040 chip to market?)

Pete


Replies:
Re: mv162 only Paul Banta

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