fpelib.inc

powerpc 405 优化过的硬浮点库

/* fpopt/fpeLib.inc, pl_FPE_common, pl_linux 11/24/03 16:15:21                                                                  */
/*----------------------------------------------------------------------------- */
/*  Copyright (c) 2003, IBM Corporation                                         */
/*  All rights reserved.                                                        */
/*                                                                              */
/*  Redistribution and use in source and binary forms, with or                  */
/*  without modification, are permitted provided that the following             */
/*  conditions are met:                                                         */
/*                                                                              */
/*    * Redistributions of source code must retain the above                    */
/*      copyright notice, this list of conditions and the following             */
/*      disclaimer.                                                             */
/*    * 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.                                         */
/*    * Neither the name of IBM 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.    */
/*                                                                              */
/*----------------------------------------------------------------------------- */

#ifndef fpeLib_inc
#define fpeLib_inc

/* Stack frame offsets. FP register area starts after back chain and LR save.  */
/* Space to save non-volatile registers 16-31 starts after FP register area.   */
/* Stack frame needs to be a multiple of 8 bytes for EABI */

#define NUMB_SAVEREGS 16
#define STACKSIZE ((NUMB_SAVEREGS * 4) + 8)
#define SAVEREG_BASE 8                              

#define SAVEREG(rn) stw r##rn, (SAVEREG_BASE + (rn - 16) * 4)(r1)
#define RESTREG(rn) lwz r##rn, (SAVEREG_BASE + (rn - 16) * 4)(r1)

#define cr6_sign 24
#define cr6_inf 25
#define cr6_zero 26
#define cr6_NaN 27

#define cr7_sign 28
#define cr7_inf 29
#define cr7_zero 30
#define cr7_NaN 31

#endif