A few remarks:
1) Why do you use 3 temporaries ? Maybe two suffice in most cases.
2) do_cmp_d() should be completely decoded at translation time.
3) I suspect the macro FPR() does too many things at runtime which gives
an important performance loss. CP0St_FR should be known at translation time.
You should use CONFIG_SOFTFLOAT to validate your code. The ARM target
does it, so it works (see the configure script).
Fabrice.
Marius Groeger wrote:
Hi All,
a new version of my FPU patch, now actually doing some math. Known
issues include, but may not be limited to:
- only support .d format, that is IEEE 64bit
- no proper float exception handling. If someone gets CONFIG_SOFTFLOAT
to compile, this should be quite easy to improve. Most of
the infrastructure required is in place.
Feedback welcome!
Cheers,
Marius
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