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| author | Joseph Myers <joseph@codesourcery.com> | 2020-06-08 16:55:11 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-26 09:39:37 -0400 |
| commit | 6b8b0136ab3018e4b552b485f808bf66bcf19ead (patch) | |
| tree | 40b45e6b43f886ef73ffd192e78392d67b6d42ac /target/m68k/softfloat.h | |
| parent | eca30647fc078f4d9ed1b455bd67960f99dbeb7a (diff) | |
| download | qemu-6b8b0136ab3018e4b552b485f808bf66bcf19ead.zip | |
softfloat: merge floatx80_mod and floatx80_rem
The m68k-specific softfloat code includes a function floatx80_mod that
is extremely similar to floatx80_rem, but computing the remainder
based on truncating the quotient toward zero rather than rounding it
to nearest integer. This is also useful for emulating the x87 fprem
and fprem1 instructions. Change the floatx80_rem implementation into
floatx80_modrem that can perform either operation, with both
floatx80_rem and floatx80_mod as thin wrappers available for all
targets.
There does not appear to be any use for the _mod operation for other
floating-point formats in QEMU (the only other architectures using
_rem at all are linux-user/arm/nwfpe, for FPA emulation, and openrisc,
for instructions that have been removed in the latest version of the
architecture), so no change is made to the code for other formats.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <alpine.DEB.2.21.2006081654280.23637@digraph.polyomino.org.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/m68k/softfloat.h')
| -rw-r--r-- | target/m68k/softfloat.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/target/m68k/softfloat.h b/target/m68k/softfloat.h index 365ef6ac7a..4bb9567134 100644 --- a/target/m68k/softfloat.h +++ b/target/m68k/softfloat.h @@ -23,7 +23,6 @@ #define TARGET_M68K_SOFTFLOAT_H #include "fpu/softfloat.h" -floatx80 floatx80_mod(floatx80 a, floatx80 b, float_status *status); floatx80 floatx80_getman(floatx80 a, float_status *status); floatx80 floatx80_getexp(floatx80 a, float_status *status); floatx80 floatx80_scale(floatx80 a, floatx80 b, float_status *status); |