cray_fdiv.c File Reference

#include "arith.internal.h"
#include "int64.h"

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Defines
#define	LOOKUP_KEY_BITS   7
Functions
int	ar_cfdiv64 (AR_CRAY_64 *x, const AR_CRAY_64 *a, const AR_CRAY_64 *b, int roundmode)
int	ar_cfdiv128 (AR_CRAY_128 *x, const AR_CRAY_128 *a, const AR_CRAY_128 *b, int roundmode)
int	ar_c1frecip (AR_CRAY_64 *x, const AR_CRAY_64 *b)
Variables
static unsigned long	recip_lookup [1<< LOOKUP_KEY_BITS][2]
static char	USMID [] = "\n%Z%%M% %I% %G% %U%\n"
static char	rcsid [] = "$Id: cray_fdiv.c,v 1.1.1.1 2002-05-22 20:06:18 dsystem Exp $"

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Define Documentation

#define LOOKUP_KEY_BITS   7

Definition at line 144 of file cray_fdiv.c.

Referenced by ar_c1frecip().

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Function Documentation

int ar_c1frecip	(	AR_CRAY_64 *	x,
		const AR_CRAY_64 *	b
	)

Definition at line 279 of file cray_fdiv.c.

References a2, ADD64, AR_CRAY_C0_BITS, AR_CRAY_EXPO_BIAS, AR_CRAY_MAX_EXPO, AR_CRAY_MIN_EXPO, AR_STAT_INEXACT, AR_STAT_NEGATIVE, AR_STAT_OK, AR_STAT_OVERFLOW, AR_CRAY_64::coeff0, COPY64, AR_CRAY_64::expo, INC64, LOOKUP_KEY_BITS, MASKR, MULSTEP, NOT64, AR_INT_64::part1, AR_INT_64::part2, AR_INT_64::part3, AR_INT_64::part4, recip_lookup, SHLEFT64, SHLEFTCRAY64, SHRIGHT64, SHRIGHTCRAY64, AR_CRAY_64::sign, t1, ZERO64, and ZEROCRAY64.

Referenced by ar_cfdiv128(), ar_cfdiv64(), ar_sim(), and main().

int ar_cfdiv128	(	AR_CRAY_128 *	x,
		const AR_CRAY_128 *	a,
		const AR_CRAY_128 *	b,
		int	roundmode
	)

Definition at line 69 of file cray_fdiv.c.

References ar_c1frecip(), ar_cfadd64(), ar_cfmul128(), ar_cfmul64(), ar_cfsub64(), AR_CRAY_C0_BITS, AR_CRAY_C3_BITS, AR_CRAY_EXPO_BIAS, AR_STAT_NEGATIVE, AR_STAT_OK, AR_STAT_ZERO, AR_CRAY_64::coeff0, AR_CRAY_128::coeff0, AR_CRAY_128::coeff1, AR_CRAY_128::coeff2, AR_CRAY_128::coeff3, AR_CRAY_128::coeff4, AR_CRAY_128::coeff5, CRAY128TO64, CRAY64TO128, AR_CRAY_64::expo, AR_CRAY_128::expo, INCCRAY128, INCCRAY64, SHLEFTCRAY128, SHRIGHTCRAY128, AR_CRAY_128::sign, t1, and AR_CRAY_128::zero.

Referenced by ar_divide_float(), and main().

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int ar_cfdiv64	(	AR_CRAY_64 *	x,
		const AR_CRAY_64 *	a,
		const AR_CRAY_64 *	b,
		int	roundmode
	)

Definition at line 47 of file cray_fdiv.c.

References ar_c1frecip(), ar_cfmul64(), ar_CRAY_64_trunc(), AR_RECIPROCAL_ITERATION, AR_STAT_NEGATIVE, AR_STAT_OK, AR_STAT_ZERO, ar_state_register, ar_state_info::ar_truncate_bits, and AR_UNROUNDED.

Referenced by ar_divide_float(), and main().

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Variable Documentation

char rcsid[] = "$Id: cray_fdiv.c,v 1.1.1.1 2002-05-22 20:06:18 dsystem Exp $" [static]

Definition at line 492 of file cray_fdiv.c.

unsigned long recip_lookup[1<< LOOKUP_KEY_BITS][2] [static]

Definition at line 145 of file cray_fdiv.c.

Referenced by ar_c1frecip().

char USMID[] = "\n%Z%%M% %I% %G% %U%\n" [static]

Definition at line 491 of file cray_fdiv.c.