continue...

[plan9front.git] / arm / include / ape / float.h

diff --git a/arm/include/ape/float.h b/arm/include/ape/float.h
new file mode 100644 (file)
index 0000000..4df158e
--- /dev/null
+++ b/arm/include/ape/float.h
@@ -0,0 +1,73 @@
+#ifndef __FLOAT
+#define __FLOAT
+/* IEEE, default rounding */
+
+#define FLT_ROUNDS     1
+#define FLT_RADIX      2
+
+#define FLT_DIG                6
+#define FLT_EPSILON    1.19209290e-07
+#define FLT_MANT_DIG   24
+#define FLT_MAX                3.40282347e+38
+#define FLT_MAX_10_EXP 38
+#define FLT_MAX_EXP    128
+#define FLT_MIN                1.17549435e-38
+#define FLT_MIN_10_EXP -37
+#define FLT_MIN_EXP    -125
+
+#define DBL_DIG                15
+#define DBL_EPSILON    2.2204460492503131e-16
+#define DBL_MANT_DIG   53
+#define DBL_MAX                1.797693134862315708145e+308
+#define DBL_MAX_10_EXP 308
+#define DBL_MAX_EXP    1024
+#define DBL_MIN                2.225073858507201383090233e-308
+#define DBL_MIN_10_EXP -307
+#define DBL_MIN_EXP    -1021
+#define LDBL_MANT_DIG  DBL_MANT_DIG
+#define LDBL_EPSILON   DBL_EPSILON
+#define LDBL_DIG       DBL_DIG
+#define LDBL_MIN_EXP   DBL_MIN_EXP
+#define LDBL_MIN       DBL_MIN
+#define LDBL_MIN_10_EXP        DBL_MIN_10_EXP
+#define LDBL_MAX_EXP   DBL_MAX_EXP
+#define LDBL_MAX       DBL_MAX
+#define LDBL_MAX_10_EXP        DBL_MAX_10_EXP
+
+typedef        union FPdbleword FPdbleword;
+union FPdbleword
+{
+       double  x;
+       struct {        /* little endian */
+               long lo;
+               long hi;
+       };
+};
+
+#ifdef _RESEARCH_SOURCE
+/* define stuff needed for floating conversion */
+#define IEEE_8087      1
+#define Sudden_Underflow 1
+#endif
+#ifdef _PLAN9_SOURCE
+/* FCR */
+#define        FPINEX  (1<<5)
+#define        FPOVFL  (1<<3)
+#define        FPUNFL  ((1<<4)|(1<<1))
+#define        FPZDIV  (1<<2)
+#define        FPRNR   (0<<10)
+#define        FPRZ    (3<<10)
+#define        FPRPINF (2<<10)
+#define        FPRNINF (1<<10)
+#define        FPRMASK (3<<10)
+#define        FPPEXT  (3<<8)
+#define        FPPSGL  (0<<8)
+#define        FPPDBL  (2<<8)
+#define        FPPMASK (3<<8)
+/* FSR */
+#define        FPAINEX FPINEX
+#define        FPAOVFL FPOVFL
+#define        FPAUNFL FPUNFL
+#define        FPAZDIV FPZDIV
+#endif
+#endif /* __FLOAT */