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Are eCos gnutools planned to be released with a more recent(>3.2.1) version of libgcc
- From: <etienneg at esiee dot fr>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Wed, 28 Apr 2004 17:50:22 +0300
- Subject: [ECOS] Are eCos gnutools planned to be released with a more recent(>3.2.1) version of libgcc
Hi
I'm currently working on porting eCos on Motorola PowerPC 860
(400Mhz). I experimented problems using floats while treating an IT of
3ms period.
float's handling took me too much time, for exemple:
conversion float -> ulonglong = 500 µs
float x float = 45 µs
float / float = 100 µs
in comparison with DIAB's library, these measures are incredibly long
(especially conversions to or from floats). I tried to replace most of
the float's libGCCv3.2.1 functions by float's libGCCv3.3.3 functions.
conversion float -> ulonglong = 17 µs
float x float = 10 µs
float / float = 42 µs
Thx to this modification, I do not waste time anymore :
libGCC 3.2.1 -> IT is treated in 2,5ms
libGCC 3.2.1 -> IT is treated in 1,2ms
Obviously there's a great improvement in recents versions of the GCC
library. Are eCos gnutools planned to be released with a more
recent(>3.2.1) version of libgcc?
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