arch/parisc/math-emu/hppa.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Linux/PA-RISC Project (http://www.parisc-linux.org/)
   4  *
   5  * Floating-point emulation code
   6  *  Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
   7  */
   8
   9 #ifdef __NO_PA_HDRS
  10     PA header file -- do not include this header file for non-PA builds.
  11 #endif
  12
  13
  14 /* amount is assumed to be a constant between 0 and 32 (non-inclusive) */
  15 #define Shiftdouble(left,right,amount,dest)                     \
  16     /* int left, right, amount, dest; */                        \
  17     dest = ((left) << (32-(amount))) | ((unsigned int)(right) >> (amount))
  18
  19 /* amount must be less than 32 */
  20 #define Variableshiftdouble(left,right,amount,dest)             \
  21     /* unsigned int left, right;  int amount, dest; */          \
  22     if (amount == 0) dest = right;                              \
  23     else dest = ((((unsigned) left)&0x7fffffff) << (32-(amount))) |     \
  24           ((unsigned) right >> (amount))
  25
  26 /* amount must be between 0 and 32 (non-inclusive) */
  27 #define Variable_shift_double(left,right,amount,dest)           \
  28     /* unsigned int left, right;  int amount, dest; */          \
  29     dest = (left << (32-(amount))) | ((unsigned) right >> (amount))