- initial import

git-svn-id: http://moon:8086/svn/mips@1 a8ebac50-d88d-4704-bea3-6648445a41b3

src/snipmath.h

@@ -0,0 +1,75 @@
+/* +++Date last modified: 05-Jul-1997 */
+
+/*
+**  SNIPMATH.H - Header file for SNIPPETS math functions and macros
+*/
+
+#ifndef SNIPMATH__H
+#define SNIPMATH__H
+
+#include <math.h>
+#include "sniptype.h"
+#include "round.h"
+
+/*
+**  Callable library functions begin here
+*/
+
+void    SetBCDLen(int n);                             /* Bcdl.C         */
+long    BCDtoLong(char *BCDNum);                      /* Bcdl.C         */
+void    LongtoBCD(long num, char BCDNum[]);           /* Bcdl.C         */
+double  bcd_to_double(void *buf, size_t len,          /* Bcdd.C         */
+                      int digits);
+int     double_to_bcd(double arg, char *buf,          /* Bcdd.C         */
+                      size_t length, size_t digits );
+DWORD   ncomb1 (int n, int m);                        /* Combin.C       */
+DWORD   ncomb2 (int n, int m);                        /* Combin.C       */
+void    SolveCubic(double a, double b, double c,      /* Cubic.C        */
+                  double d, int *solutions,
+                  double *x);
+DWORD   dbl2ulong(double t);                          /* Dbl2Long.C     */
+long    dbl2long(double t);                           /* Dbl2Long.C     */
+double  dround(double x);                             /* Dblround.C     */
+
+/* Use #defines for Permutations and Combinations     -- Factoryl.C     */
+
+#define log10P(n,r) (log10factorial(n)-log10factorial((n)-(r)))
+#define log10C(n,r) (log10P((n),(r))-log10factorial(r))
+
+double  log10factorial(double N);                     /* Factoryl.C     */
+
+double  fibo(unsigned short term);                    /* Fibo.C         */
+double  frandom(int n);                               /* Frand.C        */
+double  ipow(double x, int n);                        /* Ipow.C         */
+int     ispow2(int x);                                /* Ispow2.C       */
+long    double ldfloor(long double a);                /* Ldfloor.C      */
+int     initlogscale(long dmax, long rmax);           /* Logscale.C     */
+long    logscale(long d);                             /* Logscale.C     */
+
+float   MSBINToIEEE(float f);                         /* Msb2Ieee.C     */
+float   IEEEToMSBIN(float f);                         /* Msb2Ieee.C     */
+int     perm_index (char pit[], int size);            /* Perm_Idx.C     */
+int     round_div(int n, int d);                      /* Rnd_Div.C      */
+long    round_ldiv(long n, long d);                   /* Rnd_Div.C      */
+double  rad2deg(double rad);                          /* Rad2Deg.C      */
+double  deg2rad(double deg);                          /* Rad2Deg.C      */
+
+#include "pi.h"
+#ifndef PHI
+ #define PHI      ((1.0+sqrt(5.0))/2.0)         /* the golden number    */
+ #define INV_PHI  (1.0/PHI)                     /* the golden ratio     */
+#endif
+
+/*
+**  File: ISQRT.C
+*/
+
+struct int_sqrt {
+      unsigned sqrt,
+               frac;
+};
+
+void usqrt(unsigned long x, struct int_sqrt *q);
+
+
+#endif /* SNIPMATH__H */