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
