/*
** emfloat.h
** Header for emfloat.c
**
** BYTEmark (tm)
** BYTE Magazine's Native Mode benchmarks
** Rick Grehan, BYTE Magazine
**
** Create:
** Revision: 3/95
**
** DISCLAIMER
** The source, executable, and documentation files that comprise
** the BYTEmark benchmarks are made available on an "as is" basis.
** This means that we at BYTE Magazine have made every reasonable
** effort to verify that the there are no errors in the source and
** executable code.  We cannot, however, guarantee that the programs
** are error-free.  Consequently, McGraw-HIll and BYTE Magazine make
** no claims in regard to the fitness of the source code, executable
** code, and documentation of the BYTEmark.
**  Furthermore, BYTE Magazine, McGraw-Hill, and all employees
** of McGraw-Hill cannot be held responsible for any damages resulting
** from the use of this code or the results obtained from using
** this code.
*/

#include <stdio.h>
#include <stdint.h>

#define MAX_EXP 32767L
#define MIN_EXP (-32767L)

#define IFPF_IS_ZERO 0
#define IFPF_IS_SUBNORMAL 1
#define IFPF_IS_NORMAL 2
#define IFPF_IS_INFINITY 3
#define IFPF_IS_NAN 4
#define IFPF_TYPE_COUNT 5

#define ZERO_ZERO                       0
#define ZERO_SUBNORMAL                  1
#define ZERO_NORMAL                     2
#define ZERO_INFINITY                   3
#define ZERO_NAN                        4

#define SUBNORMAL_ZERO                  5
#define SUBNORMAL_SUBNORMAL             6
#define SUBNORMAL_NORMAL                7
#define SUBNORMAL_INFINITY              8
#define SUBNORMAL_NAN                   9

#define NORMAL_ZERO                     10
#define NORMAL_SUBNORMAL                11
#define NORMAL_NORMAL                   12
#define NORMAL_INFINITY                 13
#define NORMAL_NAN                      14

#define INFINITY_ZERO                   15
#define INFINITY_SUBNORMAL              16
#define INFINITY_NORMAL                 17
#define INFINITY_INFINITY               18
#define INFINITY_NAN                    19

#define NAN_ZERO                        20
#define NAN_SUBNORMAL                   21
#define NAN_NORMAL                      22
#define NAN_INFINITY                    23
#define NAN_NAN                         24
#define OPERAND_ZERO                    0
#define OPERAND_SUBNORMAL               1
#define OPERAND_NORMAL                  2
#define OPERAND_INFINITY                3
#define OPERAND_NAN                     4

#define INTERNAL_FPF_PRECISION 4

typedef struct
{
        uint8_t type;        /* Indicates, NORMAL, SUBNORMAL, etc. */
        uint8_t sign;        /* Mantissa sign */
        short exp;      /* Signed exponent...no bias */
        uint16_t mantissa[INTERNAL_FPF_PRECISION];
} InternalFPF;

void AddSubInternalFPF(unsigned char operation,InternalFPF *x, InternalFPF *y, InternalFPF *z);
void MultiplyInternalFPF(InternalFPF *x,InternalFPF *y, InternalFPF *z);
void DivideInternalFPF(InternalFPF *x,InternalFPF *y, InternalFPF *z);
void Int32ToInternalFPF(int32_t mylong, InternalFPF *dest);