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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /tests/fp/berkeley-softfloat-3/source/f128_to_ui64_r_minMag.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'tests/fp/berkeley-softfloat-3/source/f128_to_ui64_r_minMag.c')
-rw-r--r--tests/fp/berkeley-softfloat-3/source/f128_to_ui64_r_minMag.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/tests/fp/berkeley-softfloat-3/source/f128_to_ui64_r_minMag.c b/tests/fp/berkeley-softfloat-3/source/f128_to_ui64_r_minMag.c
new file mode 100644
index 000000000..3f2fb6bce
--- /dev/null
+++ b/tests/fp/berkeley-softfloat-3/source/f128_to_ui64_r_minMag.c
@@ -0,0 +1,105 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3e, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015, 2016 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 <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+uint_fast64_t f128_to_ui64_r_minMag( float128_t a, bool exact )
+{
+ union ui128_f128 uA;
+ uint_fast64_t uiA64, uiA0;
+ bool sign;
+ int_fast32_t exp;
+ uint_fast64_t sig64, sig0;
+ int_fast32_t shiftDist;
+ int_fast8_t negShiftDist;
+ uint_fast64_t z;
+
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ uA.f = a;
+ uiA64 = uA.ui.v64;
+ uiA0 = uA.ui.v0;
+ sign = signF128UI64( uiA64 );
+ exp = expF128UI64( uiA64 );
+ sig64 = fracF128UI64( uiA64 );
+ sig0 = uiA0;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ shiftDist = 0x402F - exp;
+ if ( shiftDist < 0 ) {
+ /*--------------------------------------------------------------------
+ *--------------------------------------------------------------------*/
+ if ( sign || (shiftDist < -15) ) goto invalid;
+ sig64 |= UINT64_C( 0x0001000000000000 );
+ negShiftDist = -shiftDist;
+ z = sig64<<negShiftDist | sig0>>(shiftDist & 63);
+ if ( exact && (uint64_t) (sig0<<negShiftDist) ) {
+ softfloat_exceptionFlags |= softfloat_flag_inexact;
+ }
+ } else {
+ /*--------------------------------------------------------------------
+ *--------------------------------------------------------------------*/
+ if ( 49 <= shiftDist ) {
+ if ( exact && (exp | sig64 | sig0) ) {
+ softfloat_exceptionFlags |= softfloat_flag_inexact;
+ }
+ return 0;
+ }
+ /*--------------------------------------------------------------------
+ *--------------------------------------------------------------------*/
+ if ( sign ) goto invalid;
+ sig64 |= UINT64_C( 0x0001000000000000 );
+ z = sig64>>shiftDist;
+ if ( exact && (sig0 || (z<<shiftDist != sig64)) ) {
+ softfloat_exceptionFlags |= softfloat_flag_inexact;
+ }
+ }
+ return z;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ invalid:
+ softfloat_raiseFlags( softfloat_flag_invalid );
+ return
+ (exp == 0x7FFF) && (sig64 | sig0) ? ui64_fromNaN
+ : sign ? ui64_fromNegOverflow : ui64_fromPosOverflow;
+
+}
+