sim/ppc/altivec_expression.h

   1 /* Altivec expression macros, for PSIM, the PowerPC simulator.
   2
   3    Copyright 2003, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
   4
   5    Contributed by Red Hat Inc; developed under contract from Motorola.
   6    Written by matthew green <mrg@redhat.com>.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 /* AltiVec macro helpers.  */
  24
  25 #define ALTIVEC_SET_CR6(vS, checkone) \
  26 do { \
  27   if (checkone && ((*vS).w[0] == 0xffffffff && \
  28                    (*vS).w[1] == 0xffffffff && \
  29                    (*vS).w[2] == 0xffffffff && \
  30                    (*vS).w[3] == 0xffffffff)) \
  31     CR_SET(6, 1 << 3); \
  32   else if ((*vS).w[0] == 0 && \
  33            (*vS).w[1] == 0 && \
  34            (*vS).w[2] == 0 && \
  35            (*vS).w[3] == 0) \
  36     CR_SET(6, 1 << 1); \
  37   else \
  38     CR_SET(6, 0); \
  39 } while (0)
  40
  41 #define VSCR_SAT        0x00000001
  42 #define VSCR_NJ         0x00010000
  43
  44 #define ALTIVEC_SET_SAT(sat) \
  45 do { \
  46   if (sat) \
  47     VSCR |= VSCR_SAT; \
  48 } while (0)