diff options
author | Joseph Myers <joseph@codesourcery.com> | 2020-06-08 16:57:16 +0000 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-26 09:39:38 -0400 |
commit | 445810ec915687d37b8ae0ef8d7340ab4a153efa (patch) | |
tree | bc84f9b462e85bf3340972ca57a14be6da92e233 /pc-bios/s390-ccw | |
parent | 566601f1f9d972e44214696d3cb320e6c18880aa (diff) |
softfloat: return low bits of quotient from floatx80_modrem
Both x87 and m68k need the low parts of the quotient for their
remainder operations. Arrange for floatx80_modrem to track those bits
and return them via a pointer.
The architectures using float32_rem and float64_rem do not appear to
need this information, so the *_rem interface is left unchanged and
the information returned only from floatx80_modrem. The logic used to
determine the low 7 bits of the quotient for m68k
(target/m68k/fpu_helper.c:make_quotient) appears completely bogus (it
looks at the result of converting the remainder to integer, the
quotient having been discarded by that point); this patch does not
change that, but the m68k maintainers may wish to do so.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <alpine.DEB.2.21.2006081656500.23637@digraph.polyomino.org.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'pc-bios/s390-ccw')
0 files changed, 0 insertions, 0 deletions