The forgotten .c file.

src/cpu/softfloat3e/softfloat-specialize.c

@@ -0,0 +1,90 @@
+/*============================================================================
+This C source fragment is part of the SoftFloat IEC/IEEE Floating-point
+Arithmetic Package, Release 2b.
+
+Written by John R. Hauser.  This work was made possible in part by the
+International Computer Science Institute, located at Suite 600, 1947 Center
+Street, Berkeley, California 94704.  Funding was partially provided by the
+National Science Foundation under grant MIP-9311980.  The original version
+of this code was written as part of a project to build a fixed-point vector
+processor in collaboration with the University of California at Berkeley,
+overseen by Profs. Nelson Morgan and John Wawrzynek.  More information
+is available through the Web page `http://www.cs.berkeley.edu/~jhauser/
+arithmetic/SoftFloat.html'.
+
+THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE.  Although reasonable effort has
+been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES
+RESULT IN INCORRECT BEHAVIOR.  USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS
+AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES,
+COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
+EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
+INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
+OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
+
+Derivative works are acceptable, even for commercial purposes, so long as
+(1) the source code for the derivative work includes prominent notice that
+the work is derivative, and (2) the source code includes prominent notice with
+these four paragraphs for those parts of this code that are retained.
+=============================================================================*/
+
+#include "softfloat-specialize.h"
+
+/*============================================================================
+ * Adapted for Bochs (x86 achitecture simulator) by
+ *            Stanislav Shwartsman [sshwarts at sourceforge net]
+ * ==========================================================================*/
+
+const int16_t int16_indefinite = (int16_t) 0x8000;
+const int32_t int32_indefinite = (int32_t) 0x80000000;
+const int64_t int64_indefinite = (int64_t) BX_CONST64(0x8000000000000000);
+
+const uint16_t uint16_indefinite = 0xffff;
+const uint32_t uint32_indefinite = 0xffffffff;
+const uint64_t uint64_indefinite = BX_CONST64(0xffffffffffffffff);
+
+/*----------------------------------------------------------------------------
+| Commonly used half-precision floating point constants
+*----------------------------------------------------------------------------*/
+const float16 float16_negative_inf  = 0xfc00;
+const float16 float16_positive_inf  = 0x7c00;
+const float16 float16_negative_zero = 0x8000;
+const float16 float16_positive_zero = 0x0000;
+
+/*----------------------------------------------------------------------------
+| The pattern for a default generated half-precision NaN.
+*----------------------------------------------------------------------------*/
+const float16 float16_default_nan = 0xFE00;
+
+/*----------------------------------------------------------------------------
+| Commonly used single-precision floating point constants
+*----------------------------------------------------------------------------*/
+const float32 float32_negative_inf  = 0xff800000;
+const float32 float32_positive_inf  = 0x7f800000;
+const float32 float32_negative_zero = 0x80000000;
+const float32 float32_positive_zero = 0x00000000;
+const float32 float32_negative_one  = 0xbf800000;
+const float32 float32_positive_one  = 0x3f800000;
+const float32 float32_max_float     = 0x7f7fffff;
+const float32 float32_min_float     = 0xff7fffff;
+
+/*----------------------------------------------------------------------------
+| The pattern for a default generated single-precision NaN.
+*----------------------------------------------------------------------------*/
+const float32 float32_default_nan   = 0xffc00000;
+
+/*----------------------------------------------------------------------------
+| Commonly used single-precision floating point constants
+*----------------------------------------------------------------------------*/
+const float64 float64_negative_inf  = BX_CONST64(0xfff0000000000000);
+const float64 float64_positive_inf  = BX_CONST64(0x7ff0000000000000);
+const float64 float64_negative_zero = BX_CONST64(0x8000000000000000);
+const float64 float64_positive_zero = BX_CONST64(0x0000000000000000);
+const float64 float64_negative_one  = BX_CONST64(0xbff0000000000000);
+const float64 float64_positive_one  = BX_CONST64(0x3ff0000000000000);
+const float64 float64_max_float     = BX_CONST64(0x7fefffffffffffff);
+const float64 float64_min_float     = BX_CONST64(0xffefffffffffffff);
+
+/*----------------------------------------------------------------------------
+| The pattern for a default generated double-precision NaN.
+*----------------------------------------------------------------------------*/
+const float64 float64_default_nan = BX_CONST64(0xFFF8000000000000);