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/* Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc.

   This file is free software; you can redistribute it and/or modify it under

   the terms of the GNU General Public License as published by the Free

   Software Foundation; either version 3 of the License, or (at your option)

   any later version.

   This file is distributed in the hope that it will be useful, but WITHOUT

   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

   for more details.

   Under Section 7 of GPL version 3, you are granted additional

   permissions described in the GCC Runtime Library Exception, version

   3.1, as published by the Free Software Foundation.

   You should have received a copy of the GNU General Public License and

   a copy of the GCC Runtime Library Exception along with this program;

   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

   <http://www.gnu.org/licenses/>.  */

#include <spu_intrinsics.h>

const unsigned char __didf_scale[16] __attribute__ ((__aligned__ (16))) = {

  0x00, 0x00, 0x04, 0x3e,

  0x00, 0x00, 0x04, 0x1e,

  0x00, 0x00, 0x00, 0x00,

  0x00, 0x00, 0x00, 0x00

};

const unsigned char __didf_pat[16] __attribute__ ((__aligned__ (16))) = {

  0x02, 0x03, 0x10, 0x11,

  0x12, 0x13, 0x80, 0x80,

  0x06, 0x07, 0x14, 0x15,

  0x16, 0x17, 0x80, 0x80

};

/* double __float_unsdidf (unsigned long long int)

   Construct two exact doubles representing the high and low parts (in

   parallel), then add them. */

qword __float_unsdidf (qword DI);

qword

__float_unsdidf (qword DI)

{

  qword t0, t1, t2, t3, t4, t5, t6, t7, t8;

  t0 = si_clz (DI);

  t1 = si_shl (DI, t0);

  t2 = si_ceqi (t0, 32);

  t3 = si_sf (t0, *(const qword *) __didf_scale);

  t4 = si_a (t1, t1);

  t5 = si_andc (t3, t2);

  t6 = si_shufb (t5, t4, *(const qword *) __didf_pat);

  t7 = si_shlqbii (t6, 4);

  t8 = si_shlqbyi (t7, 8);

  return si_dfa (t7, t8);

}