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

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

Module Name:    src
Committed By:   rin
Date:           Wed Jul 15 09:36:35 UTC 2020

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

Log Message:
Try to fix FPSCR bits in the end of emulation:

- FPSCR[FEX] is not a sticky bit.
- Turn on FPSCR[FEX] if the emulated instruction causes invalid operation,
  and invalid operation exception is not masked out.
- FPSCR[VX] is not a sticky bit, however it should be set when at least
  one of FPSCR[VXfoo] bits (they are sticky!) is set.
- FPSCR[FX] is a sticky bit, and it should be set if FPSCR is modified by
  instructions other than mtfsf{,i}.


To generate a diff of this commit:
cvs rdiff -u -r1.31 -r1.32 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.