--- /dev/null
+\r
+#ifndef softfloat_h\r
+#define softfloat_h\r
+\r
+#ifdef __cplusplus\r
+extern "C" {\r
+#endif\r
+\r
+/*** UPDATE COMMENTS. ***/\r
+\r
+/*============================================================================\r
+\r
+This C header file is part of the SoftFloat IEEE Floating-point Arithmetic\r
+Package, Release 2b.\r
+\r
+Written by John R. Hauser. This work was made possible in part by the\r
+International Computer Science Institute, located at Suite 600, 1947 Center\r
+Street, Berkeley, California 94704. Funding was partially provided by the\r
+National Science Foundation under grant MIP-9311980. The original version\r
+of this code was written as part of a project to build a fixed-point vector\r
+processor in collaboration with the University of California at Berkeley,\r
+overseen by Profs. Nelson Morgan and John Wawrzynek. More information\r
+is available through the Web page `http://www.cs.berkeley.edu/~jhauser/\r
+arithmetic/SoftFloat.html'.\r
+\r
+THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has\r
+been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES\r
+RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS\r
+AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES,\r
+COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE\r
+EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE\r
+INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR\r
+OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.\r
+\r
+Derivative works are acceptable, even for commercial purposes, so long as\r
+(1) the source code for the derivative work includes prominent notice that\r
+the work is derivative, and (2) the source code includes prominent notice with\r
+these four paragraphs for those parts of this code that are retained.\r
+\r
+=============================================================================*/\r
+\r
+#include "softfloat_types.h"\r
+\r
+/*----------------------------------------------------------------------------\r
+| Software floating-point underflow tininess-detection mode.\r
+*----------------------------------------------------------------------------*/\r
+extern int_fast8_t softfloat_detectTininess;\r
+enum {\r
+ softfloat_tininess_beforeRounding = 0,\r
+ softfloat_tininess_afterRounding = 1\r
+};\r
+\r
+/*----------------------------------------------------------------------------\r
+| Software floating-point rounding mode.\r
+*----------------------------------------------------------------------------*/\r
+extern int_fast8_t softfloat_roundingMode;\r
+enum {\r
+ softfloat_round_nearest_even = 0,\r
+ softfloat_round_minMag = 1,\r
+ softfloat_round_min = 2,\r
+ softfloat_round_max = 3,\r
+ softfloat_round_nearest_maxMag = 4\r
+};\r
+\r
+/*----------------------------------------------------------------------------\r
+| Software floating-point exception flags.\r
+*----------------------------------------------------------------------------*/\r
+extern int_fast8_t softfloat_exceptionFlags;\r
+enum {\r
+ softfloat_flag_inexact = 1,\r
+ softfloat_flag_underflow = 2,\r
+ softfloat_flag_overflow = 4,\r
+ softfloat_flag_infinity = 8,\r
+ softfloat_flag_invalid = 16\r
+};\r
+\r
+/*----------------------------------------------------------------------------\r
+| Routine to raise any or all of the software floating-point exception flags.\r
+*----------------------------------------------------------------------------*/\r
+void softfloat_raiseFlags( int_fast8_t );\r
+\r
+/*----------------------------------------------------------------------------\r
+| Integer-to-floating-point conversion routines.\r
+*----------------------------------------------------------------------------*/\r
+float32_t ui32_to_f32( uint_fast32_t );\r
+float64_t ui32_to_f64( uint_fast32_t );\r
+floatx80_t ui32_to_fx80( uint_fast32_t );\r
+float128_t ui32_to_f128( uint_fast32_t );\r
+float32_t ui64_to_f32( uint_fast64_t );\r
+float64_t ui64_to_f64( uint_fast64_t );\r
+floatx80_t ui64_to_fx80( uint_fast64_t );\r
+float128_t ui64_to_f128( uint_fast64_t );\r
+float32_t i32_to_f32( int_fast32_t );\r
+float64_t i32_to_f64( int_fast32_t );\r
+floatx80_t i32_to_fx80( int_fast32_t );\r
+float128_t i32_to_f128( int_fast32_t );\r
+float32_t i64_to_f32( int_fast64_t );\r
+float64_t i64_to_f64( int_fast64_t );\r
+floatx80_t i64_to_fx80( int_fast64_t );\r
+float128_t i64_to_f128( int_fast64_t );\r
+\r
+/*----------------------------------------------------------------------------\r
+| 32-bit (single-precision) floating-point operations.\r
+*----------------------------------------------------------------------------*/\r
+uint_fast32_t f32_to_ui32( float32_t, int_fast8_t, bool );\r
+uint_fast64_t f32_to_ui64( float32_t, int_fast8_t, bool );\r
+int_fast32_t f32_to_i32( float32_t, int_fast8_t, bool );\r
+int_fast64_t f32_to_i64( float32_t, int_fast8_t, bool );\r
+uint_fast32_t f32_to_ui32_r_minMag( float32_t, bool );\r
+uint_fast64_t f32_to_ui64_r_minMag( float32_t, bool );\r
+int_fast32_t f32_to_i32_r_minMag( float32_t, bool );\r
+int_fast64_t f32_to_i64_r_minMag( float32_t, bool );\r
+float64_t f32_to_f64( float32_t );\r
+floatx80_t f32_to_fx80( float32_t );\r
+float128_t f32_to_f128( float32_t );\r
+float32_t f32_roundToInt( float32_t, int_fast8_t, bool );\r
+float32_t f32_add( float32_t, float32_t );\r
+float32_t f32_sub( float32_t, float32_t );\r
+float32_t f32_mul( float32_t, float32_t );\r
+float32_t f32_mulAdd( float32_t, float32_t, float32_t );\r
+float32_t f32_div( float32_t, float32_t );\r
+float32_t f32_rem( float32_t, float32_t );\r
+float32_t f32_sqrt( float32_t );\r
+bool f32_eq( float32_t, float32_t );\r
+bool f32_le( float32_t, float32_t );\r
+bool f32_lt( float32_t, float32_t );\r
+bool f32_eq_signaling( float32_t, float32_t );\r
+bool f32_le_quiet( float32_t, float32_t );\r
+bool f32_lt_quiet( float32_t, float32_t );\r
+bool f32_isSignalingNaN( float32_t );\r
+\r
+/*----------------------------------------------------------------------------\r
+| 64-bit (double-precision) floating-point operations.\r
+*----------------------------------------------------------------------------*/\r
+uint_fast32_t f64_to_ui32( float64_t, int_fast8_t, bool );\r
+uint_fast64_t f64_to_ui64( float64_t, int_fast8_t, bool );\r
+int_fast32_t f64_to_i32( float64_t, int_fast8_t, bool );\r
+int_fast64_t f64_to_i64( float64_t, int_fast8_t, bool );\r
+uint_fast32_t f64_to_ui32_r_minMag( float64_t, bool );\r
+uint_fast64_t f64_to_ui64_r_minMag( float64_t, bool );\r
+int_fast32_t f64_to_i32_r_minMag( float64_t, bool );\r
+int_fast64_t f64_to_i64_r_minMag( float64_t, bool );\r
+float32_t f64_to_f32( float64_t );\r
+floatx80_t f64_to_fx80( float64_t );\r
+float128_t f64_to_f128( float64_t );\r
+float64_t f64_roundToInt( float64_t, int_fast8_t, bool );\r
+float64_t f64_add( float64_t, float64_t );\r
+float64_t f64_sub( float64_t, float64_t );\r
+float64_t f64_mul( float64_t, float64_t );\r
+float64_t f64_mulAdd( float64_t, float64_t, float64_t );\r
+float64_t f64_div( float64_t, float64_t );\r
+float64_t f64_rem( float64_t, float64_t );\r
+float64_t f64_sqrt( float64_t );\r
+bool f64_eq( float64_t, float64_t );\r
+bool f64_le( float64_t, float64_t );\r
+bool f64_lt( float64_t, float64_t );\r
+bool f64_eq_signaling( float64_t, float64_t );\r
+bool f64_le_quiet( float64_t, float64_t );\r
+bool f64_lt_quiet( float64_t, float64_t );\r
+bool f64_isSignalingNaN( float64_t );\r
+\r
+/*----------------------------------------------------------------------------\r
+| Extended double-precision rounding precision. Valid values are 32, 64, and\r
+| 80.\r
+*----------------------------------------------------------------------------*/\r
+extern int_fast8_t floatx80_roundingPrecision;\r
+\r
+/*----------------------------------------------------------------------------\r
+| Extended double-precision floating-point operations.\r
+*----------------------------------------------------------------------------*/\r
+uint_fast32_t fx80_to_ui32( floatx80_t, int_fast8_t, bool );\r
+uint_fast64_t fx80_to_ui64( floatx80_t, int_fast8_t, bool );\r
+int_fast32_t fx80_to_i32( floatx80_t, int_fast8_t, bool );\r
+int_fast64_t fx80_to_i64( floatx80_t, int_fast8_t, bool );\r
+uint_fast32_t fx80_to_ui32_r_minMag( floatx80_t, bool );\r
+uint_fast64_t fx80_to_ui64_r_minMag( floatx80_t, bool );\r
+int_fast32_t fx80_to_i32_r_minMag( floatx80_t, bool );\r
+int_fast64_t fx80_to_i64_r_minMag( floatx80_t, bool );\r
+float32_t fx80_to_f32( floatx80_t );\r
+float64_t fx80_to_f64( floatx80_t );\r
+float128_t fx80_to_f128( floatx80_t );\r
+floatx80_t fx80_roundToInt( floatx80_t, int_fast8_t, bool );\r
+floatx80_t fx80_add( floatx80_t, floatx80_t );\r
+floatx80_t fx80_sub( floatx80_t, floatx80_t );\r
+floatx80_t fx80_mul( floatx80_t, floatx80_t );\r
+floatx80_t fx80_mulAdd( floatx80_t, floatx80_t, floatx80_t );\r
+floatx80_t fx80_div( floatx80_t, floatx80_t );\r
+floatx80_t fx80_rem( floatx80_t, floatx80_t );\r
+floatx80_t fx80_sqrt( floatx80_t );\r
+bool fx80_eq( floatx80_t, floatx80_t );\r
+bool fx80_le( floatx80_t, floatx80_t );\r
+bool fx80_lt( floatx80_t, floatx80_t );\r
+bool fx80_eq_signaling( floatx80_t, floatx80_t );\r
+bool fx80_le_quiet( floatx80_t, floatx80_t );\r
+bool fx80_lt_quiet( floatx80_t, floatx80_t );\r
+bool fx80_isSignalingNaN( floatx80_t );\r
+\r
+/*----------------------------------------------------------------------------\r
+| 128-bit (quadruple-precision) floating-point operations.\r
+*----------------------------------------------------------------------------*/\r
+uint_fast32_t f128_to_ui32( float128_t, int_fast8_t, bool );\r
+uint_fast64_t f128_to_ui64( float128_t, int_fast8_t, bool );\r
+int_fast32_t f128_to_i32( float128_t, int_fast8_t, bool );\r
+int_fast64_t f128_to_i64( float128_t, int_fast8_t, bool );\r
+uint_fast32_t f128_to_ui32_r_minMag( float128_t, bool );\r
+uint_fast64_t f128_to_ui64_r_minMag( float128_t, bool );\r
+int_fast32_t f128_to_i32_r_minMag( float128_t, bool );\r
+int_fast64_t f128_to_i64_r_minMag( float128_t, bool );\r
+float32_t f128_to_f32( float128_t );\r
+float64_t f128_to_f64( float128_t );\r
+floatx80_t f128_to_fx80( float128_t );\r
+float128_t f128_roundToInt( float128_t, int_fast8_t, bool );\r
+float128_t f128_add( float128_t, float128_t );\r
+float128_t f128_sub( float128_t, float128_t );\r
+float128_t f128_mul( float128_t, float128_t );\r
+float128_t f128_mulAdd( float128_t, float128_t, float128_t );\r
+float128_t f128_div( float128_t, float128_t );\r
+float128_t f128_rem( float128_t, float128_t );\r
+float128_t f128_sqrt( float128_t );\r
+bool f128_eq( float128_t, float128_t );\r
+bool f128_le( float128_t, float128_t );\r
+bool f128_lt( float128_t, float128_t );\r
+bool f128_eq_signaling( float128_t, float128_t );\r
+bool f128_le_quiet( float128_t, float128_t );\r
+bool f128_lt_quiet( float128_t, float128_t );\r
+bool f128_isSignalingNaN( float128_t );\r
+\r
+#ifdef __cplusplus\r
+}\r
+#endif\r
+\r
+#endif\r
+\r
projects / riscv-isa-sim.git / blobdiff