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[liba] Add __aeabi_ul2d implementation

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This commit is contained in:
Émilie Feral
2018-01-18 10:39:46 +01:00
committed by EmilieNumworks
parent a8dc17a6cf
commit 90a75a320b
4 changed files with 65 additions and 0 deletions
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1
liba/Makefile
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@@ -187,4 +187,5 @@ objs += $(addprefix liba/src/external/softfloat/src/, \
s_subMagsF64.o \
softfloat_state.o \
ui32_to_f64.o \
ui64_to_f64.o \
)

4
liba/src/aeabi-rt/long.c
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@@ -12,6 +12,10 @@ aeabi_double_t __aeabi_l2d(int64_t i) {
return d(i64_to_f64(i));
}
aeabi_float_t __aeabi_ul2d(uint64_t i) {
return d(ui64_to_f64(i));
}
int64_t __aeabi_f2lz(aeabi_float_t x) {
return f32_to_i64_r_minMag(f32(x), 0);
}

1
liba/src/external/softfloat/port/softfloat.h vendored
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@@ -14,6 +14,7 @@ float32_t f64_to_f32(float64_t x);
float64_t f32_to_f64(float32_t x);
float64_t i32_to_f64(int32_t i);
float64_t ui32_to_f64(uint32_t i);
float64_t ui64_to_f64(uint64_t i);
int_fast32_t f64_to_i32_r_minMag(float64_t x, bool exact);
bool f64_eq(float64_t x, float64_t y);
bool f64_le(float64_t x, float64_t y);

59
liba/src/external/softfloat/src/ui64_to_f64.c vendored Normal file
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@@ -0,0 +1,59 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3c, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All Rights Reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
float64_t ui64_to_f64( uint64_t a )
{
union ui64_f64 uZ;
if ( ! a ) {
uZ.ui = 0;
return uZ.f;
}
if ( a & UINT64_C( 0x8000000000000000 ) ) {
return
softfloat_roundPackToF64(
0, 0x43D, softfloat_shortShiftRightJam64( a, 1 ) );
} else {
return softfloat_normRoundPackToF64( 0, 0x43C, a );
}
}