Open64: osprey/be/cg/ia64/float

00001 /*
00002 
00003   Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved.
00004 
00005   This program is free software; you can redistribute it and/or modify it
00006   under the terms of version 2 of the GNU General Public License as
00007   published by the Free Software Foundation.
00008 
00009   This program is distributed in the hope that it would be useful, but
00010   WITHOUT ANY WARRANTY; without even the implied warranty of
00011   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
00012 
00013   Further, this software is distributed without any warranty that it is
00014   free of the rightful claim of any third person regarding infringement 
00015   or the like.  Any license provided herein, whether implied or 
00016   otherwise, applies only to this software file.  Patent licenses, if 
00017   any, provided herein do not apply to combinations of this program with 
00018   other software, or any other product whatsoever.  
00019 
00020   You should have received a copy of the GNU General Public License along
00021   with this program; if not, write the Free Software Foundation, Inc., 59
00022   Temple Place - Suite 330, Boston MA 02111-1307, USA.
00023 
00024   Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
00025   Mountain View, CA 94043, or:
00026 
00027   http://www.sgi.com
00028 
00029   For further information regarding this notice, see:
00030 
00031   http://oss.sgi.com/projects/GenInfo/NoticeExplan
00032 
00033 */
00034 
00035 /* ====================================================================
00036  * ====================================================================
00037  *
00038  * Module: float_rf.h
00039  * $Revision: 1.1.1.1 $
00040  * $Date: 2005/10/21 19:00:00 $
00041  * $Author: marcel $
00042  * $Source: /proj/osprey/CVS/open64/osprey1.0/be/cg/ia64/float_rf.h,v $
00043  *
00044  * 82-bit register format floating point utilities interface.
00045  *
00046  * ====================================================================
00047  * ==================================================================== */
00048 
00049 #ifndef float_rf_INCLUDED
00050 #define float_rf_INCLUDED
00051 
00052 #ifdef _MIPSEL
00053 #define TARGETEL 1
00054 #endif
00055 
00056 #ifdef _MIPSEB
00057 #define TARGETEB 1
00058 #endif
00059 
00060 #ifdef linux
00061 #ifndef __STDC_LIMIT_MACROS
00062  #define __STDC_LIMIT_MACROS
00063 #endif
00064 #ifndef __STDC_LIMIT_MACROS
00065  #define __STDC_LIMIT_MACROS
00066  #include <stdint.h>
00067 #endif
00068 #else
00069 #include <inttypes.h>
00070 #endif
00071 
00072 /*************************** structs.h ***************************/
00073 
00074 #ifndef _STRUCTS_H_
00075 #define _STRUCTS_H_
00076 
00077 #ifndef __STDC_LIMIT_MACROS
00078  #define __STDC_LIMIT_MACROS
00079 #endif
00080 #include <stdint.h>
00081 
00082 typedef struct {
00083   uint32_t unused : 14;
00084   uint32_t sign   : 1;
00085   uint32_t exp    : 17;
00086   uint64_t frac   : 64;
00087 } float_rf;
00088 
00089 
00090 typedef union {
00091   uint64_t i;
00092   struct {
00093 #if TARGETEL
00094     uint64_t trapsDisabled : 6;
00095     uint64_t controls    : 7;
00096     uint64_t flags     : 6;
00097     uint64_t ISR_fpa     : 1;
00098     uint64_t ISR_ebc     : 1;
00099     uint64_t reserved    : 43;
00100 #endif
00101 #if TARGETEB
00102     uint64_t reserved    : 43;
00103     uint64_t ISR_ebc     : 1;
00104     uint64_t ISR_fpa     : 1;
00105     uint64_t flags     : 6;
00106     uint64_t controls    : 7;
00107     uint64_t trapsDisabled : 6;
00108 #endif
00109   } c;
00110   struct {
00111 #if TARGETEL
00112     uint64_t invalid_trap_disabled    : 1;
00113     uint64_t den_unn_op_trap_disabled : 1;
00114     uint64_t zero_div_trap_disabled   : 1;
00115     uint64_t overflow_trap_disabled   : 1;
00116     uint64_t underflow_trap_disabled  : 1;
00117     uint64_t inexact_trap_disabled    : 1;
00118     uint64_t ftz          : 1;
00119     uint64_t wre          : 1;
00120     uint64_t pc           : 2;
00121     uint64_t rc           : 2;
00122     uint64_t td           : 1;
00123     uint64_t invalid_flag       : 1;
00124     uint64_t den_unn_op_flag        : 1;
00125     uint64_t zero_div_flag        : 1;
00126     uint64_t overflow_flag        : 1;
00127     uint64_t underflow_flag       : 1;
00128     uint64_t inexact_flag       : 1;
00129     uint64_t ISR_fpa          : 1;
00130     uint64_t ISR_ebc          : 1;
00131     uint64_t reserved         : 43;
00132 #endif
00133 #if TARGETEB
00134     uint64_t reserved         : 43;
00135     uint64_t ISR_ebc          : 1;
00136     uint64_t ISR_fpa          : 1;
00137     uint64_t inexact_flag       : 1;
00138     uint64_t underflow_flag       : 1;
00139     uint64_t overflow_flag        : 1;
00140     uint64_t zero_div_flag        : 1;
00141     uint64_t den_unn_op_flag        : 1;
00142     uint64_t invalid_flag       : 1;
00143     uint64_t td           : 1;
00144     uint64_t rc           : 2;
00145     uint64_t pc           : 2;
00146     uint64_t wre          : 1;
00147     uint64_t ftz          : 1;
00148     uint64_t inexact_trap_disabled    : 1;
00149     uint64_t underflow_trap_disabled  : 1;
00150     uint64_t overflow_trap_disabled   : 1;
00151     uint64_t zero_div_trap_disabled   : 1;
00152     uint64_t den_unn_op_trap_disabled : 1;
00153     uint64_t invalid_trap_disabled    : 1;
00154 #endif
00155   } b;
00156 } status_field;
00157 
00158 #endif
00159 
00160 /*************************** externs.h ***************************/
00161 
00162 #ifndef _STRUCTS_H_
00163 #endif
00164 
00165 #if defined(linux)
00166 #endif
00167 
00168 extern "C" {
00169     uint64_t mul64(uint64_t, uint64_t, uint64_t *);
00170 }
00171 
00172 extern  float_rf  Quiet_nan_rf;
00173 extern  float_rf  NaTVal_rf;
00174 extern  float_rf  Infinity_rf;
00175 extern  float_rf  Zero_rf;
00176 
00177 extern  float_rf  round(uint32_t, int32_t, uint64_t, uint64_t, status_field* );
00178 
00179 extern  float_rf  round_l(uint32_t, int64_t, uint64_t, status_field* );
00180 
00181 extern  int32_t   renorm( uint64_t * );
00182 
00183 extern  float_rf  soft_div( uint32_t, int32_t, uint64_t,
00184           uint32_t, int32_t, uint64_t,
00185           status_field * );
00186 
00187 extern
00188 float_rf
00189 recip_sqrt( uint32_t, int32_t, uint64_t );
00190 
00191 extern
00192 float_rf
00193 fma( const float_rf *, const float_rf *, const float_rf *, status_field * );
00194 
00195 extern
00196 float_rf
00197 fnorm( const float_rf *, const float_rf *, const float_rf *, status_field * );
00198 
00199 extern
00200 float_rf
00201 fms( const float_rf *, const float_rf *, const float_rf *, status_field * );
00202 
00203 extern
00204 float_rf
00205 fnma( const float_rf *, const float_rf *, const float_rf *, status_field * );
00206 
00207 extern
00208 float_rf
00209 fmin( const float_rf *, const float_rf *, status_field * );
00210 
00211 extern
00212 float_rf
00213 fmax( const float_rf *, const float_rf *, status_field * );
00214 
00215 extern
00216 float_rf
00217 famin( const float_rf *, const float_rf *, status_field * );
00218 
00219 extern
00220 float_rf
00221 famax( const float_rf *, const float_rf *, status_field * );
00222 
00223 extern
00224 float_rf
00225 frcpa( int32_t *, const float_rf *, const float_rf *, status_field * );
00226 
00227 extern
00228 float_rf
00229 frsqrta( int32_t *, const float_rf *, status_field * );
00230 
00231 extern
00232 float_rf
00233 fcvtfx( const float_rf *, status_field * );
00234 
00235 extern
00236 float_rf
00237 fcvtfxtrunc( const float_rf *, status_field * );
00238 
00239 extern
00240 float_rf
00241 fcvtfxu( const float_rf *, status_field * );
00242 
00243 extern
00244 float_rf
00245 fcvtfxutrunc( const float_rf *, status_field * );
00246 
00247 extern
00248 float_rf
00249 fcvtxf( const float_rf * );
00250 
00251 extern
00252 int32_t
00253 fcmp_eq( const float_rf *, const float_rf *, status_field * );
00254 
00255 extern
00256 int32_t
00257 fcmp_lt( const float_rf *, const float_rf *, status_field * );
00258 
00259 extern
00260 int32_t
00261 fcmp_le( const float_rf *, const float_rf *, status_field * );
00262 
00263 extern
00264 int32_t
00265 fcmp_unord( const float_rf *, const float_rf *, status_field * );
00266 
00267 extern
00268 float_rf
00269 madd( uint32_t, int32_t, uint64_t, uint32_t, int32_t, uint64_t,
00270   uint32_t, int32_t, uint64_t, status_field * );
00271 
00272 extern
00273 void
00274 breakout(const float_rf *, uint32_t *, int32_t *, uint64_t *, status_field * );
00275 
00276 extern
00277 int32_t
00278 breakout_and_test2(const float_rf *, uint32_t *, int32_t *, uint64_t *,
00279        const float_rf *, uint32_t *, int32_t *, uint64_t *,
00280        status_field * );
00281 
00282 extern
00283 int32_t
00284 breakout_and_test3(const float_rf *, uint32_t *, int32_t *, uint64_t *,
00285        const float_rf *, uint32_t *, int32_t *, uint64_t *,
00286        const float_rf *, uint32_t *, int32_t *, uint64_t *,
00287        status_field * );
00288 
00289 extern
00290 int32_t
00291 breakout_and_test( const float_rf *, uint32_t *, int32_t *, uint64_t *, 
00292        status_field * );
00293 
00294 
00295 
00296 /******************************************************************/
00297 
00298 #endif
osprey/be/cg/ia64/float_rf.h
