mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-13 22:14:20 +08:00
dc7a12bdfc
Converts ARM the text files to ReST, preparing them to be an architecture book. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
58 lines
1.3 KiB
ReStructuredText
58 lines
1.3 KiB
ReStructuredText
===============================================
|
|
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.jhauser.us/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
|