projects / OpenSPARC-T2-SAM / blame
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1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== | |
| 3 | * | |
| 4 | * OpenSPARC T2 Processor File: fpsim_support.h | |
| 5 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 6 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
| 7 | * | |
| 8 | * The above named program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public | |
| 10 | * License version 2 as published by the Free Software Foundation. | |
| 11 | * | |
| 12 | * The above named program is distributed in the hope that it will be | |
| 13 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public | |
| 18 | * License along with this work; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 20 | * | |
| 21 | * ========== Copyright Header End ============================================ | |
| 22 | */ | |
| 23 | #ifndef _INCLUDED_FPSIM_SUPPORT_H | |
| 24 | #define _INCLUDED_FPSIM_SUPPORT_H | |
| 25 | ||
| 26 | /*===================================================================* | |
| 27 | * fpsim_support.h : include file for FPSIM library source | |
| 28 | * | |
| 29 | * (c) Copyright 2006 Sun Microsystems, Inc. | |
| 30 | * | |
| 31 | *===================================================================*/ | |
| 32 | ||
| 33 | /********************************************************************* | |
| 34 | * ATTENTION: This code is part of a library shared by multiple | |
| 35 | * projects. DO NOT MAKE CHANGES TO THIS CODE WITHIN YOUR PROJECT. | |
| 36 | * Instead, contact the owner/maintainer of the library, currently: | |
| 37 | * Robert.Rethemeyer@Sun.COM +1-408-616-5717 (x45717) | |
| 38 | * Systems Group: TVT: FrontEnd Technologies | |
| 39 | * The CVS source code repository for the library is at: | |
| 40 | * /import/ftap-blimp1/cvs/fpsim | |
| 41 | * DO NOT COMMIT CHANGES TO THAT REPOSITORY: contact the maintainer. | |
| 42 | ********************************************************************/ | |
| 43 | ||
| 44 | /*tab length=4*/ | |
| 45 | ||
| 46 | typedef unsigned int uint; | |
| 47 | typedef long long int64; | |
| 48 | typedef unsigned long long uint64; | |
| 49 | ||
| 50 | ||
| 51 | #ifdef __cplusplus | |
| 52 | extern "C" { | |
| 53 | #endif | |
| 54 | ||
| 55 | extern int asm_faddd( const double* op1, const double* op2, double* rslt, | |
| 56 | int rnd, int* tmp ); | |
| 57 | extern int asm_fsubd( const double* op1, const double* op2, double* rslt, | |
| 58 | int rnd, int* tmp ); | |
| 59 | extern int asm_fmuld( const double* op1, const double* op2, double* rslt, | |
| 60 | int rnd, int* tmp ); | |
| 61 | extern int asm_fdivd( const double* op1, const double* op2, double* rslt, | |
| 62 | int rnd, int* tmp ); | |
| 63 | extern int asm_fsqrtd( const double* op2, double* rslt, int rnd, int* tmp ); | |
| 64 | extern int asm_fadds( const float* op1, const float* op2, float* rslt, | |
| 65 | int rnd, int* tmp ); | |
| 66 | extern int asm_fsubs( const float* op1, const float* op2, float* rslt, | |
| 67 | int rnd, int* tmp ); | |
| 68 | extern int asm_fmuls( const float* op1, const float* op2, float* rslt, | |
| 69 | int rnd, int* tmp ); | |
| 70 | extern int asm_fdivs( const float* op1, const float* op2, float* rslt, | |
| 71 | int rnd, int* tmp ); | |
| 72 | extern int asm_fsqrts( const float* op2, float* rslt, int rnd, int* tmp ); | |
| 73 | extern int asm_fsmuld( const float* op1, const float* op2, double* rslt, | |
| 74 | int* tmp ); | |
| 75 | extern int asm_fstod( const float* op2, double* rslt, int rnd, int* tmp ); | |
| 76 | extern int asm_fdtos( const double* op2, float* rslt, int rnd, int* tmp ); | |
| 77 | extern int asm_fstox( const float* op2, uint64* rslt, int rnd, int* tmp ); | |
| 78 | extern int asm_fdtox( const double* op2, uint64* rslt, int rnd, int* tmp ); | |
| 79 | extern int asm_fstoi( const float* op2, uint* rslt, int rnd, int* tmp ); | |
| 80 | extern int asm_fdtoi( const double* op2, uint* rslt, int rnd, int* tmp ); | |
| 81 | extern int asm_fxtos( const uint64* op2, float* rslt, int rnd, int* tmp ); | |
| 82 | extern int asm_fxtod( const uint64* op2, double* rslt, int rnd, int* tmp ); | |
| 83 | extern int asm_fitos( const uint* op2, float* rslt, int rnd, int* tmp ); | |
| 84 | extern void asm_fitod( const uint* op2, double* rslt ); | |
| 85 | extern int asm_addc( uint64 op1, uint64 op2, uint64* res ); | |
| 86 | extern int asm_subc( uint64 op1, uint64 op2, uint64* res ); | |
| 87 | #ifdef __cplusplus | |
| 88 | } | |
| 89 | #endif | |
| 90 | ||
| 91 | // FP number classes | |
| 92 | enum fp_classes { | |
| 93 | fp_zero=0, fp_subnormal, fp_normal, fp_infinity, fp_quiet, fp_signaling | |
| 94 | }; | |
| 95 | ||
| 96 | // FP rounding modes | |
| 97 | enum fp_round { | |
| 98 | FP_RN=0, FP_RZ, FP_RP, FP_RM | |
| 99 | }; | |
| 100 | ||
| 101 | ||
| 102 | // structures for easy examination of all parts of a FP number | |
| 103 | typedef struct fpdouble { | |
| 104 | union { | |
| 105 | double num; | |
| 106 | uint64 inte; | |
| 107 | } fp; | |
| 108 | uint64 frac; | |
| 109 | int exp; | |
| 110 | int sign; | |
| 111 | } fpdouble; | |
| 112 | ||
| 113 | typedef struct fpsingle { | |
| 114 | union { | |
| 115 | float num; | |
| 116 | uint inte; | |
| 117 | } fp; | |
| 118 | uint frac; | |
| 119 | int exp; | |
| 120 | int sign; | |
| 121 | } fpsingle; | |
| 122 | ||
| 123 | #define EBIAS_S 127 | |
| 124 | #define EBIAS_D 1023 | |
| 125 | ||
| 126 | #define TRAP_ILLEGAL_INST 0x10 | |
| 127 | #define TRAP_IEEE_754 0x21 | |
| 128 | #define TRAP_FPX_OTHER 0x22 | |
| 129 | ||
| 130 | #ifndef NULL | |
| 131 | #define NULL 0 | |
| 132 | #endif | |
| 133 | ||
| 134 | #endif /* _INCLUDED_FPSIM_SUPPORT_H */ |