/*
 *  REMOVED FORMAL PARAMETERS FROM FUNCTION DEFINITIONS (1/4/92)
 */


#ifndef MPMATH_H
#define MPMATH_H

#ifndef _CMPLX_DEFINED
#include "cmplx.h"
#endif

#ifdef XFRACT
#define far
#endif


#ifndef XFRACT
struct MP {
   int Exp;
        unsigned long Mant;
};
#else
struct MP {
   double val;
};
#endif

struct MPC {
        struct MP x, y;
};

extern int MPOverflow;
extern int DivideOverflow;

/* Mark Peterson's expanded floating point operators.  Automatically uses
   either the 8086 or 80386 processor type specified in global 'cpu'. If
   the operation results in an overflow (result < 2**(2**14), or division
   by zero) the global 'MPoverflow' is set to one. */

/* function pointer support added by Tim Wegner 12/07/89 */
extern int         (*pMPcmp)(struct MP , struct MP );
extern struct MP  *(*pMPmul)(struct MP , struct MP );
extern struct MP  *(*pMPdiv)(struct MP , struct MP );
extern struct MP  *(*pMPadd)(struct MP , struct MP );
extern struct MP  *(*pMPsub)(struct MP , struct MP );
extern struct MP  *(*pd2MP)(double )                ;
extern double     *(*pMP2d)(struct MP )             ;


/*** Formula Declarations ***/
enum MATH_TYPE { D_MATH, M_MATH, L_MATH };
extern enum MATH_TYPE MathType;

#define fDiv(x, y, z) (void)((*(long*)&z) = RegDivFloat(*(long*)&x, *(long*)&y))
#define fMul16(x, y, z) (void)((*(long*)&z) = r16Mul(*(long*)&x, *(long*)&y))
#define fShift(x, Shift, z) (void)((*(long*)&z) = \
   RegSftFloat(*(long*)&x, Shift))
#define Fg2Float(x, f, z) (void)((*(long*)&z) = RegFg2Float(x, f))
#define Float2Fg(x, f) RegFloat2Fg(*(long*)&x, f)
#define fLog14(x, z) (void)((*(long*)&z) = \
        RegFg2Float(LogFloat14(*(long*)&x), 16))
#define fExp14(x, z) (void)((*(long*)&z) = ExpFloat14(*(long*)&x));
#define fSqrt14(x, z) fLog14(x, z); fShift(z, -1, z); fExp14(z, z)

/* the following are declared 4 dimensional as an experiment */
/* changeing declarations to _CMPLX and _LCMPLX restores the code */
/* to 2D */
union Arg {
   _CMPLX     d;
   struct MPC m;
   _LCMPLX    l;
/*
   _DHCMPLX   dh; 
   _LHCMPLX   lh; */  
};

struct ConstArg {
   char *s;
   int len;
   union Arg a;
};

extern union Arg *Arg1,*Arg2;

extern void lStkSin(void),lStkCos(void),lStkSinh(void),lStkCosh(void),lStkLog(void),lStkExp(void),lStkSqr(void);
extern void dStkSin(void),dStkCos(void),dStkSinh(void),dStkCosh(void),dStkLog(void),dStkExp(void),dStkSqr(void);

extern void (*ltrig0)(void);
extern void (*ltrig1)(void);
extern void (*ltrig2)(void);
extern void (*ltrig3)(void);
extern void (*dtrig0)(void);
extern void (*dtrig1)(void);
extern void (*dtrig2)(void);
extern void (*dtrig3)(void);

/* -------------------------------------------------------------------- */
/*   The following #defines allow the complex transcendental functions	*/
/*   in parser.c to be used here thus avoiding duplicated code. 	*/
/* -------------------------------------------------------------------- */
#ifndef XFRACT

#define CMPLXmod(z)	  (sqr((z).x)+sqr((z).y))
#define CMPLXconj(z)	((z).y =  -((z).y))
#define LCMPLXmod(z)	   (lsqr((z).x)+lsqr((z).y))
#define LCMPLXconj(z)	((z).y =  -((z).y))


#define LCMPLXtrig0(arg,out) Arg1->l = (arg); ltrig0(); (out)=Arg1->l
#define LCMPLXtrig1(arg,out) Arg1->l = (arg); ltrig1(); (out)=Arg1->l
#define LCMPLXtrig2(arg,out) Arg1->l = (arg); ltrig2(); (out)=Arg1->l
#define LCMPLXtrig3(arg,out) Arg1->l = (arg); ltrig3(); (out)=Arg1->l

#endif /* XFRACT */

#define  CMPLXtrig0(arg,out) Arg1->d = (arg); dtrig0(); (out)=Arg1->d
#define  CMPLXtrig1(arg,out) Arg1->d = (arg); dtrig1(); (out)=Arg1->d
#define  CMPLXtrig2(arg,out) Arg1->d = (arg); dtrig2(); (out)=Arg1->d
#define  CMPLXtrig3(arg,out) Arg1->d = (arg); dtrig3(); (out)=Arg1->d

#ifndef XFRACT

#define LCMPLXsin(arg,out)   Arg1->l = (arg); lStkSin();  (out) = Arg1->l
#define LCMPLXcos(arg,out)   Arg1->l = (arg); lStkCos();  (out) = Arg1->l
#define LCMPLXsinh(arg,out)  Arg1->l = (arg); lStkSinh(); (out) = Arg1->l
#define LCMPLXcosh(arg,out)  Arg1->l = (arg); lStkCosh(); (out) = Arg1->l
#define LCMPLXlog(arg,out)   Arg1->l = (arg); lStkLog();  (out) = Arg1->l
#define LCMPLXexp(arg,out)   Arg1->l = (arg); lStkExp();  (out) = Arg1->l
/*
#define LCMPLXsqr(arg,out)   Arg1->l = (arg); lStkSqr();  (out) = Arg1->l
*/
#define LCMPLXsqr(arg,out)   \
   (out).x = lsqr((arg).x) - lsqr((arg).y);\
   (out).y = multiply((arg).x, (arg).y, bitshiftless1)
#define LCMPLXsqr_old(out)	 \
   (out).y = multiply(lold.x, lold.y, bitshiftless1);\
   (out).x = ltempsqrx - ltempsqry

#define LCMPLXpwr(arg1,arg2,out)    Arg2->l = (arg1); Arg1->l = (arg2);\
	 lStkPwr(); Arg1++; Arg2++; (out) = Arg2->l
#define LCMPLXmult(arg1,arg2,out)    Arg2->l = (arg1); Arg1->l = (arg2);\
	 lStkMul(); Arg1++; Arg2++; (out) = Arg2->l
#define LCMPLXadd(arg1,arg2,out)    \
    (out).x = (arg1).x + (arg2).x; (out).y = (arg1).y + (arg2).y
#define LCMPLXsub(arg1,arg2,out)    \
    (out).x = (arg1).x - (arg2).x; (out).y = (arg1).y - (arg2).y

#define LCMPLXtimesreal(arg,real,out)	\
    (out).x = multiply((arg).x,(real),bitshift);\
    (out).y = multiply((arg).y,(real),bitshift)

#define LCMPLXrecip(arg,out)	\
{ long denom; denom = lsqr((arg).x) + lsqr((arg).y);\
if(denom==0L) overflow=1; else {(out).x = divide((arg).x,denom,bitshift);\
(out).y = -divide((arg).y,denom,bitshift);}}
#endif /* XFRACT */

#define CMPLXsin(arg,out)    Arg1->d = (arg); dStkSin();  (out) = Arg1->d
#define CMPLXcos(arg,out)    Arg1->d = (arg); dStkCos();  (out) = Arg1->d
#define CMPLXsinh(arg,out)   Arg1->d = (arg); dStkSinh(); (out) = Arg1->d
#define CMPLXcosh(arg,out)   Arg1->d = (arg); dStkCosh(); (out) = Arg1->d
#define CMPLXlog(arg,out)    Arg1->d = (arg); dStkLog();  (out) = Arg1->d
#define CMPLXexp(arg,out)    FPUcplxexp(&(arg), &(out))
/*
#define CMPLXsqr(arg,out)    Arg1->d = (arg); dStkSqr();  (out) = Arg1->d
*/
#define CMPLXsqr(arg,out)    \
   (out).x = sqr((arg).x) - sqr((arg).y);\
   (out).y = ((arg).x+(arg).x) * (arg).y
#define CMPLXsqr_old(out)	\
   (out).y = (old.x+old.x) * old.y;\
   (out).x = tempsqrx - tempsqry

#define CMPLXpwr(arg1,arg2,out)   (out)= ComplexPower((arg1), (arg2))
#define CMPLXmult1(arg1,arg2,out)    Arg2->d = (arg1); Arg1->d = (arg2);\
	 dStkMul(); Arg1++; Arg2++; (out) = Arg2->d
#define CMPLXmult(arg1,arg2,out)  \
	{\
	   _CMPLX TmP;\
	   TmP.x = (arg1).x*(arg2).x - (arg1).y*(arg2).y;\
	   TmP.y = (arg1).x*(arg2).y + (arg1).y*(arg2).x;\
	   (out) = TmP;\
	 }
#define CMPLXadd(arg1,arg2,out)    \
    (out).x = (arg1).x + (arg2).x; (out).y = (arg1).y + (arg2).y
#define CMPLXsub(arg1,arg2,out)    \
    (out).x = (arg1).x - (arg2).x; (out).y = (arg1).y - (arg2).y
#define CMPLXtimesreal(arg,real,out)   \
    (out).x = (arg).x*(real);\
    (out).y = (arg).y*(real)

#define CMPLXrecip(arg,out)    \
   { double denom; denom = sqr((arg).x) + sqr((arg).y);\
     if(denom==0.0) {(out).x = 1.0e10;(out).y = 1.0e10;}else\
    { (out).x =  (arg).x/denom;\
     (out).y = -(arg).y/denom;}}

#endif
