CVS commit: src/sys/arch/powerpc/fpu

["Rin Okuyama" <rin%netbsd.org@localhost>]

Module Name:    src
Committed By:   rin
Date:           Tue Sep 20 12:12:42 UTC 2022

Modified Files:
        src/sys/arch/powerpc/fpu: fpu_emu.c

Log Message:
stfs{,x}{,u}: Switch to conversion algorithm specified by Power ISA.

The ISA specifies algorithm for most bit patterns in double format, that
are not representable in float. I believe that sane people do not rely on
such a specification detail, but *REAL* programmers may utilize it ;)

Instead of complicating fpu_explode(), single-purpose helper function,
fpu_to_single(), is introduced. See comment therein for more details.


To generate a diff of this commit:
cvs rdiff -u -r1.58 -r1.59 src/sys/arch/powerpc/fpu/fpu_emu.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.