linux/Documentation/arm/VFP/release-notes.txt
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

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Release notes for Linux Kernel VFP support code
-----------------------------------------------
Date: 20 May 2004
Author: Russell King
This is the first release of the Linux Kernel VFP support code. It
provides support for the exceptions bounced from VFP hardware found
on ARM926EJ-S.
This release has been validated against the SoftFloat-2b library by
John R. Hauser using the TestFloat-2a test suite. Details of this
library and test suite can be found at:
http://www.cs.berkeley.edu/~jhauser/arithmetic/SoftFloat.html
The operations which have been tested with this package are:
- fdiv
- fsub
- fadd
- fmul
- fcmp
- fcmpe
- fcvtd
- fcvts
- fsito
- ftosi
- fsqrt
All the above pass softfloat tests with the following exceptions:
- fadd/fsub shows some differences in the handling of +0 / -0 results
when input operands differ in signs.
- the handling of underflow exceptions is slightly different. If a
result underflows before rounding, but becomes a normalised number
after rounding, we do not signal an underflow exception.
Other operations which have been tested by basic assembly-only tests
are:
- fcpy
- fabs
- fneg
- ftoui
- ftosiz
- ftouiz
The combination operations have not been tested:
- fmac
- fnmac
- fmsc
- fnmsc
- fnmul