1 /* Copyright 2022 Advanced Micro Devices, Inc. 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a 4 * copy of this software and associated documentation files (the "Software"), 5 * to deal in the Software without restriction, including without limitation 6 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 7 * and/or sell copies of the Software, and to permit persons to whom the 8 * Software is furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 16 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 17 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 18 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 19 * OTHER DEALINGS IN THE SOFTWARE. 20 * 21 * Authors: AMD 22 * 23 */ 24 25 #include <stdbool.h> 26 #include <stdint.h> 27 28 union custom_float_format_flags2 { 29 unsigned int Uint; 30 struct { 31 unsigned int sign : 1; 32 unsigned int reserved31 : 31; 33 } bits; 34 }; 35 struct vpe_custom_float_format2 { 36 unsigned int mantissaBits; 37 unsigned int exponentaBits; 38 union custom_float_format_flags2 flags; 39 }; 40 41 struct vpe_custom_float_value2 { 42 unsigned int mantissa; 43 unsigned int exponenta; 44 int value; 45 bool isNegative; 46 }; 47 48 bool vpe_convert_from_float_to_custom_float( 49 double value, const struct vpe_custom_float_format2 *fmt, uint16_t *pvalue); 50 bool vpe_convert_from_float_to_fp16(double value, uint16_t *pvalue); 51 52 bool vpe_convert_to_custom_float_generic( 53 double value, const struct vpe_custom_float_format2 *fmt, int *pvalue); 54 55 bool vpe_convert_to_custom_float_ex_generic(double value, 56 const struct vpe_custom_float_format2 *fmt, struct vpe_custom_float_value2 *pvalue); 57 58 bool vpe_from_1_6_12_to_double( 59 bool bIsNegative, unsigned int E, unsigned int F, double *DoubleFloat); 60