/other/netcdf_write_matrix/src/libsrc/ncx_cray.c

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/*
 *	Copyright 1996, University Corporation for Atmospheric Research
 *	See netcdf/COPYRIGHT file for copying and redistribution conditions.
 * 	
 */
/* $Id: ncx_cray.c,v 1.60 2004/09/30 18:47:12 russ Exp $ */
#ifndef _CRAY
#error "ncx_cray.c is a cray specific implementation"
#endif

/*
 * An external data representation interface.
 */
/*
 * TODO: Fix "off diagonal" functions (ncx_{put,get}[n]_t1_t2() s.t. t1 != t2)
 * to be use IEG functions when diagonals are.
 *
 * Whine to cray about IEG function limiting behavior.
 */

#include <string.h>
#include <limits.h>
/* alias poorly named limits.h macros */
#define  SHORT_MAX  SHRT_MAX
#define  SHORT_MIN  SHRT_MIN
#define USHORT_MAX USHRT_MAX
#include <float.h>
#include <assert.h>
#include "ncx.h"

/**/
#if USE_IEG
#define C_SIZE_T size_t

extern int
CRAY2IEG(
	const int *typep,
	const C_SIZE_T *nump,
	word *foreignp,
	const int *bitoffp,
	const void *local,
	const int *stride
);

extern int
IEG2CRAY(
	const int *typep,
	const C_SIZE_T *nump,
	const word *foreignp,
	const int *bitoffp,
	void *local,
	const int *stride
);


static const int Zero = 0;
static const C_SIZE_T One = 1;
static const int ThirtyTwo = 32;
static const int UnitStride = 1;
static const int Cray2_I32 = 1;	/* 32 bit two complement */
static const int Cray2_F32 = 2;	/* IEEE single precision */
static const int Cray2_I16 = 7;	/* 16 bit twos complement */
static const int Cray2_F64 = 8;	/* CRAY float to IEEE double */

#define SHORT_USE_IEG 1
#define INT_USE_IEG 1
#define FLOAT_USE_IEG 1
#define DOUBLE_USE_IEG 1

#if _CRAY1
/*
 * Return the number of bits "into" a word that (void *) is.
 * N.B. This is based on the CRAY1 (PVP) address structure,
 * which puts the address within a word in the leftmost 3 bits
 * of the address.
 */
static size_t
bitoff(const void *vp)
{
	const size_t bitoffset = ((size_t)vp >> (64 - 6)) & 0x3f;
	return bitoffset;
}
# else
#error "Don't use IEG2CRAY, CRAY2IEG except on CRAY1 (MPP) platforms"
#define bitoff(vp) ((size_t)(vp) % 64) /* N.B. Assumes 64 bit word */
# endif /* _CRAY1 */

#endif /* USE_IEG */

#if _CRAY1
/*
 * Return the number of bytes "into" a word that (void *) is.
 * N.B. This is based on the CRAY1 (PVP) address structure,
 * which puts the address within a word in the leftmost 3 bits
 * of the address.
 */
static size_t
byteoff(const void *vp)
{
	const size_t byteoffset = ((size_t)vp >> (64 - 3)) & 0x7;
	return byteoffset;
}
#else
#define byteoff(vp) ((size_t)(vp) % 8) /* N.B. Assumes 64 bit word */
#endif /* _CRAY1 */

/*
 * Return the number of bytes until the next "word" boundary
 */
static size_t
word_align(const void *vp)
{
	const size_t rem = byteoff(vp);
	if(rem == 0)
		return 0;
	return sizeof(word) - rem;
}


static const char nada[X_ALIGN] = {0, 0, 0, 0};


/*
 * Primitive numeric conversion functions.
 */

/* x_schar */

 /* We don't implement and x_schar primitives. */


/* x_short */

typedef short ix_short;
#define SIZEOF_IX_SHORT SIZEOF_SHORT
#define IX_SHORT_MAX SHORT_MAX

static void
cget_short_short(const void *xp, short *ip, int which)
{
	const long *wp = xp;

	switch(which) {
	case 0:
		*ip = (short)(*wp >> 48);
		break;
	case 1:
		*ip = (short)((*wp >> 32) & 0xffff);
		break;
	case 2:
		*ip = (short)((*wp >> 16) & 0xffff);
		break;
	case 3:
		*ip = (short)(*wp & 0xffff);
		break;
	}

	if(*ip & 0x8000)
	{
		/* extern is negative */
		*ip |= (~(0xffff));
	}
}
#define get_ix_short(xp, ip) cget_short_short((xp), (ip), byteoff(xp)/X_SIZEOF_SHORT)

static int
cput_short_short(void *xp, const short *ip, int which)
{
	word *wp = xp;

	switch(which) {
	case 0:
		*wp = (*ip << 48)
			    | (*wp & 0x0000ffffffffffff);
		break;
	case 1:
		*wp = ((*ip << 32) & 0x0000ffff00000000)
			    | (*wp & 0xffff0000ffffffff);
		break;
	case 2:
		*wp = ((*ip << 16) & 0x00000000ffff0000)
			    | (*wp & 0xffffffff0000ffff);
		break;
	case 3:
		*wp = (*ip         & 0x000000000000ffff)   
			    | (*wp & 0xffffffffffff0000);
		break;
	}

	if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_short_schar(const void *xp, schar *ip)
{
	ix_short xx;
	get_ix_short(xp, &xx);
	*ip = xx;
	if(xx > SCHAR_MAX || xx < SCHAR_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_short_uchar(const void *xp, uchar *ip)
{
	ix_short xx;
	get_ix_short(xp, &xx);
	*ip = xx;
	if(xx > UCHAR_MAX || xx < 0)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_short_short(const void *xp, short *ip)
{
	get_ix_short(xp, ip);
	return ENOERR;
}

int
ncx_get_short_int(const void *xp, int *ip)
{
	ix_short xx;
	get_ix_short(xp, &xx);
	*ip = xx;
	return ENOERR;
}

int
ncx_get_short_long(const void *xp, long *ip)
{
	ix_short xx;
	get_ix_short(xp, &xx);
	*ip = xx;
	return ENOERR;
}

int
ncx_get_short_float(const void *xp, float *ip)
{
	ix_short xx;
	get_ix_short(xp, &xx);
	*ip = xx;
	return ENOERR;
}

int
ncx_get_short_double(const void *xp, double *ip)
{
	ix_short xx;
	get_ix_short(xp, &xx);
	*ip = xx;
	return ENOERR;
}

int
ncx_put_short_schar(void *xp, const schar *ip)
{
	uchar *cp = xp;
	if(*ip & 0x80)
		*cp++ = 0xff;
	else
		*cp++ = 0;
	*cp = (uchar)*ip;
	return ENOERR;
}

int
ncx_put_short_uchar(void *xp, const uchar *ip)
{
	uchar *cp = xp;
	*cp++ = 0;
	*cp = *ip;
	return ENOERR;
}

int
ncx_put_short_short(void *xp, const short *ip)
{
	return cput_short_short(xp, ip, byteoff(xp)/X_SIZEOF_SHORT);
}

int
ncx_put_short_int(void *xp, const int *ip)
{
	ix_short xx = (ix_short)*ip;
	return cput_short_short(xp, &xx, byteoff(xp)/X_SIZEOF_SHORT);
}

int
ncx_put_short_long(void *xp, const long *ip)
{
	ix_short xx = (ix_short)*ip;
	return cput_short_short(xp, &xx, byteoff(xp)/X_SIZEOF_SHORT);
}

int
ncx_put_short_float(void *xp, const float *ip)
{
	ix_short xx = (ix_short)*ip;
	const int status = cput_short_short(xp, &xx, byteoff(xp)/X_SIZEOF_SHORT);
	if(status != ENOERR)
		return status;
	if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_put_short_double(void *xp, const double *ip)
{
	ix_short xx = (ix_short)*ip;
	const int status = cput_short_short(xp, &xx, byteoff(xp)/X_SIZEOF_SHORT);
	if(status != ENOERR)
		return status;
	if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

/* x_int */

typedef int ix_int;
#define SIZEOF_IX_INT SIZEOF_INT
#define IX_INT_MAX INT_MAX

static void
cget_int_int(const void *xp, int *ip, int which)
{
	const long *wp = xp;

	if(which == 0)
	{
		*ip = (int)(*wp >> 32);
	}
	else
	{
		*ip = (int)(*wp & 0xffffffff);
	}

	if(*ip & 0x80000000)
	{
		/* extern is negative */
		*ip |= (~(0xffffffff));
	}
}
#define get_ix_int(xp, ip) cget_int_int((xp), (ip), byteoff(xp))

static int
cput_int_int(void *xp, const int *ip, int which)
{
	word *wp = xp;

	if(which == 0)
	{
		*wp = (*ip << 32) | (*wp & 0xffffffff);
	}
	else
	{
		*wp = (*wp & ~0xffffffff) | (*ip & 0xffffffff);
	}
	if(*ip > X_INT_MAX || *ip < X_INT_MIN)
		return NC_ERANGE;
	return ENOERR;
}
#define put_ix_int(xp, ip) cput_int_int((xp), (ip), byteoff(xp))

int
ncx_get_int_schar(const void *xp, schar *ip)
{
	ix_int xx;
	get_ix_int(xp, &xx);
	*ip = xx;
	if(xx > SCHAR_MAX || xx < SCHAR_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_int_uchar(const void *xp, uchar *ip)
{
	ix_int xx;
	get_ix_int(xp, &xx);
	*ip = xx;
	if(xx > UCHAR_MAX || xx < 0)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_int_short(const void *xp, short *ip)
{
	ix_int xx;
	get_ix_int(xp, &xx);
	*ip = xx;
	if(xx > SHORT_MAX || xx < SHORT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_int_int(const void *xp, int *ip)
{
	ix_int xx;
	get_ix_int(xp, &xx);
	*ip = xx;
	return ENOERR;
}

static void
cget_int_long(const void *xp, long *ip, int which)
{
	const long *wp = xp;

	if(which == 0)
	{
		*ip = (int)(*wp >> 32);
	}
	else
	{
		*ip = (int)(*wp & 0xffffffff);
	}

	if(*ip & 0x80000000)
	{
		/* extern is negative */
		*ip |= (~(0xffffffff));
	}
}

int
ncx_get_int_long(const void *xp, long *ip)
{
	cget_int_long(xp, ip, byteoff(xp));
	return ENOERR;
}

int
ncx_get_int_float(const void *xp, float *ip)
{
	ix_int xx;
	get_ix_int(xp, &xx);
	*ip = xx;
	if(xx > FLT_MAX || xx < (-FLT_MAX))
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_int_double(const void *xp, double *ip)
{
	ix_int xx;
	get_ix_int(xp, &xx);
	*ip = xx;
	return ENOERR;
}

int
ncx_put_int_schar(void *xp, const schar *ip)
{
	uchar *cp = xp;
	if(*ip & 0x80)
	{
		*cp++ = 0xff;
		*cp++ = 0xff;
		*cp++ = 0xff;
	}
	else
	{
		*cp++ = 0x00;
		*cp++ = 0x00;
		*cp++ = 0x00;
	}
	*cp = (uchar)*ip;
	return ENOERR;
}

int
ncx_put_int_uchar(void *xp, const uchar *ip)
{
	uchar *cp = xp;
	*cp++ = 0x00;
	*cp++ = 0x00;
	*cp++ = 0x00;
	*cp   = *ip;
	return ENOERR;
}

int
ncx_put_int_short(void *xp, const short *ip)
{
	ix_int xx = (ix_int)(*ip);
	return put_ix_int(xp, &xx);
}

int
ncx_put_int_int(void *xp, const int *ip)
{
	return put_ix_int(xp, ip);
}

static int
cput_int_long(void *xp, const long *ip, int which)
{
	long *wp = xp;

	if(which == 0)
	{
		*wp = (*ip << 32) | (*wp & 0xffffffff);
	}
	else
	{
		*wp = (*wp & ~0xffffffff) | (*ip & 0xffffffff);
	}
	if(*ip > X_INT_MAX || *ip < X_INT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_put_int_long(void *xp, const long *ip)
{
	return cput_int_long(xp, ip, byteoff(xp));
}

int
ncx_put_int_float(void *xp, const float *ip)
{
	ix_int xx = (ix_int)(*ip);
	const int status = put_ix_int(xp, &xx);
	if(status != ENOERR)
		return status;
	if(*ip > (double)X_INT_MAX || *ip < (double)X_INT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_put_int_double(void *xp, const double *ip)
{
	ix_int xx = (ix_int)(*ip);
	const int status = put_ix_int(xp, &xx);
	if(status != ENOERR)
		return status;
	if(*ip > X_INT_MAX || *ip < X_INT_MIN)
		return NC_ERANGE;
	return ENOERR;
}
 

/* x_float */

#if defined(NO_IEEE_FLOAT)

struct cray_single {
	unsigned int	sign	: 1;
	unsigned int	 exp	:15;
	unsigned int	mant	:48;
};
typedef struct cray_single cray_single;

static const int cs_ieis_bias = 0x4000 - 0x7f;

static const int cs_id_bias = 0x4000 - 0x3ff;

#endif

struct ieee_single_hi {
	unsigned int	sign	: 1;
	unsigned int	 exp	: 8;
	unsigned int	mant	:23;
	unsigned int	pad	:32;
};
typedef struct ieee_single_hi ieee_single_hi;

struct ieee_single_lo {
	unsigned int	pad	:32;
	unsigned int	sign	: 1;
	unsigned int	 exp	: 8;
	unsigned int	mant	:23;
};
typedef struct ieee_single_lo ieee_single_lo;

static const int ieee_single_bias = 0x7f;


struct ieee_double {
	unsigned int	sign	: 1;
	unsigned int	 exp	:11;
	unsigned int	mant	:52;
};
typedef struct ieee_double ieee_double;

static const int ieee_double_bias = 0x3ff;

#if FLOAT_USE_IEG

static void
get_ix_float(const void *xp, float *ip)
{
	const int bo = bitoff(xp);
	(void) IEG2CRAY(&Cray2_F32, &One, (word *)xp, &bo, ip, &UnitStride);
}

static int
put_ix_float(void *xp, const float *ip)
{
	const int bo = bitoff(xp);
	int status = CRAY2IEG(&Cray2_F32, &One, (word *)xp, &bo, ip, &UnitStride);
	if(status != 0)
		status = NC_ERANGE;
	/* else, status == 0 == ENOERR */
	return status;
}

#else
	/* !FLOAT_USE_IEG */

#if defined(NO_IEEE_FLOAT)

static void
cget_float_float(const void *xp, float *ip, int which)
{

	if(which == 0)
	{
		const ieee_single_hi *isp = (const ieee_single_hi *) xp;
		cray_single *csp = (cray_single *) ip;

		if(isp->exp == 0)
		{
			/* ieee subnormal */
			*ip = (double)isp->mant;
			if(isp->mant != 0)
			{
				csp->exp -= (ieee_single_bias + 22);
			}
		}
		else
		{
			csp->exp  = isp->exp + cs_ieis_bias + 1;
			csp->mant = isp->mant << (48 - 1 - 23);
			csp->mant |= (1 << (48 - 1));
		}
		csp->sign = isp->sign;


	}
	else
	{
		const ieee_single_lo *isp = (const ieee_single_lo *) xp;
		cray_single *csp = (cray_single *) ip;

		if(isp->exp == 0)
		{
			/* ieee subnormal */
			*ip = (double)isp->mant;
			if(isp->mant != 0)
			{
				csp->exp -= (ieee_single_bias + 22);
			}
		}
		else
		{
			csp->exp  = isp->exp + cs_ieis_bias + 1;
			csp->mant = isp->mant << (48 - 1 - 23);
			csp->mant |= (1 << (48 - 1));
		}
		csp->sign = isp->sign;


	}
}

static int
cput_float_float(void *xp, const float *ip, int which)
{
	int status = ENOERR;
	if(which == 0)
	{
		ieee_single_hi *isp = (ieee_single_hi*)xp;
	const cray_single *csp = (const cray_single *) ip;
	int ieee_exp = csp->exp - cs_ieis_bias -1;

	isp->sign = csp->sign;

	if(ieee_exp >= 0xff
			|| *ip > X_FLOAT_MAX || *ip < X_FLOAT_MIN)
	{
		/* NC_ERANGE => ieee Inf */
		isp->exp = 0xff;
		isp->mant = 0x0;
		return NC_ERANGE;
	}
	/* else */

	if(ieee_exp > 0)
	{
		/* normal ieee representation */
		isp->exp  = ieee_exp;
		/* assumes cray rep is in normal form */
		/* assert(csp->mant & 0x800000000000); */
		isp->mant = (((csp->mant << 1) &
				0xffffffffffff) >> (48 - 23));
	}
	else if(ieee_exp > -23)
	{
		/* ieee subnormal, right  */
		const int rshift = (48 - 23 - ieee_exp);

		isp->mant = csp->mant >> rshift;
		isp->exp  = 0;
	}
	else
	{
		/* smaller than ieee can represent */
		isp->exp = 0;
		isp->mant = 0;
	}

	}
	else
	{
		ieee_single_lo *isp = (ieee_single_lo*)xp;
	const cray_single *csp = (const cray_single *) ip;
	int ieee_exp = csp->exp - cs_ieis_bias -1;

	isp->sign = csp->sign;

	if(ieee_exp >= 0xff
			|| *ip > X_FLOAT_MAX || *ip < X_FLOAT_MIN)
	{
		/* NC_ERANGE => ieee Inf */
		isp->exp = 0xff;
		isp->mant = 0x0;
		return NC_ERANGE;
	}
	/* else */

	if(ieee_exp > 0)
	{
		/* normal ieee representation */
		isp->exp  = ieee_exp;
		/* assumes cray rep is in normal form */
		/* assert(csp->mant & 0x800000000000); */
		isp->mant = (((csp->mant << 1) &
				0xffffffffffff) >> (48 - 23));
	}
	else if(ieee_exp > -23)
	{
		/* ieee subnormal, right  */
		const int rshift = (48 - 23 - ieee_exp);

		isp->mant = csp->mant >> rshift;
		isp->exp  = 0;
	}
	else
	{
		/* smaller than ieee can represent */
		isp->exp = 0;
		isp->mant = 0;
	}

	}
	return ENOERR;
}

#define get_ix_float(xp, ip) cget_float_float((xp), (ip), byteoff(xp))
#define put_ix_float(xp, ip) cput_float_float((xp), (ip), byteoff(xp))

#else
	/* IEEE Cray with only doubles */
static void
cget_float_float(const void *xp, float *ip, int which)
{

	ieee_double *idp = (ieee_double *) ip;

	if(which == 0)
	{
		const ieee_single_hi *isp = (const ieee_single_hi *) xp;
		if(isp->exp == 0 && isp->mant == 0)
		{
			idp->exp = 0;
			idp->mant = 0;
		}
		else
		{
			idp->exp = isp->exp + (ieee_double_bias - ieee_single_bias);
			idp->mant = isp->mant << (52 - 23);
		}
		idp->sign = isp->sign;
	}
	else
	{
		const ieee_single_lo *isp = (const ieee_single_lo *) xp;
		if(isp->exp == 0 && isp->mant == 0)
		{
			idp->exp = 0;
			idp->mant = 0;
		}
		else
		{
			idp->exp = isp->exp + (ieee_double_bias - ieee_single_bias);
			idp->mant = isp->mant << (52 - 23);
		}
		idp->sign = isp->sign;
	}
}

static int
cput_float_float(void *xp, const float *ip, int which)
{
	const ieee_double *idp = (const ieee_double *) ip;
	if(which == 0)
	{
		ieee_single_hi *isp = (ieee_single_hi*)xp;
		if(idp->exp > (ieee_double_bias - ieee_single_bias))
			isp->exp = idp->exp - (ieee_double_bias - ieee_single_bias);
		else
			isp->exp = 0;
		isp->mant = idp->mant >> (52 - 23);
		isp->sign = idp->sign;
	}
	else
	{
		ieee_single_lo *isp = (ieee_single_lo*)xp;
		if(idp->exp > (ieee_double_bias - ieee_single_bias))
			isp->exp = idp->exp - (ieee_double_bias - ieee_single_bias);
		else
			isp->exp = 0;
		isp->mant = idp->mant >> (52 - 23);
		isp->sign = idp->sign;
	}
	if(*ip > X_FLOAT_MAX || *ip < X_FLOAT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

#define get_ix_float(xp, ip) cget_float_float((xp), (ip), byteoff(xp))
#define put_ix_float(xp, ip) cput_float_float((xp), (ip), byteoff(xp))

#endif /* NO_IEEE_FLOAT */

#endif /* FLOAT_USE_IEG */


int
ncx_get_float_schar(const void *xp, schar *ip)
{
	float xx;
	get_ix_float(xp, &xx);
	*ip = (schar) xx;
	if(xx > SCHAR_MAX || xx < SCHAR_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_float_uchar(const void *xp, uchar *ip)
{
	float xx;
	get_ix_float(xp, &xx);
	*ip = (uchar) xx;
	if(xx > UCHAR_MAX || xx < 0)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_float_short(const void *xp, short *ip)
{
	float xx;
	get_ix_float(xp, &xx);
	*ip = (short) xx;
	if(xx > SHORT_MAX || xx < SHORT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_float_int(const void *xp, int *ip)
{
	float xx;
	get_ix_float(xp, &xx);
	*ip = (int) xx;
	if(xx > (double)INT_MAX || xx < (double)INT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_float_long(const void *xp, long *ip)
{
	float xx;
	get_ix_float(xp, &xx);
	*ip = (long) xx;
	if(xx > LONG_MAX || xx < LONG_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_float_float(const void *xp, float *ip)
{
	get_ix_float(xp, ip);
	return ENOERR;
}

int
ncx_get_float_double(const void *xp, double *ip)
{
#if SIZEOF_FLOAT == SIZEOF_DOUBLE && FLT_MANT_DIG == DBL_MANT_DIG
	return ncx_get_float_float(xp, (float *)ip);
#else
	float xx;
	get_ix_float(xp, &xx);
	*ip = xx;
	return ENOERR;
#endif
}


int
ncx_put_float_schar(void *xp, const schar *ip)
{
	float xx = (float) *ip;
	return put_ix_float(xp, &xx);
}

int
ncx_put_float_uchar(void *xp, const uchar *ip)
{
	float xx = (float) *ip;
	return put_ix_float(xp, &xx);
}

int
ncx_put_float_short(void *xp, const short *ip)
{
	float xx = (float) *ip;
	return put_ix_float(xp, &xx);
}

int
ncx_put_float_int(void *xp, const int *ip)
{
	float xx = (float) *ip;
	return put_ix_float(xp, &xx);
}

int
ncx_put_float_long(void *xp, const long *ip)
{
	float xx = (float) *ip;
	return put_ix_float(xp, &xx);
}

int
ncx_put_float_float(void *xp, const float *ip)
{
	return put_ix_float(xp, ip);
}

int
ncx_put_float_double(void *xp, const double *ip)
{
#if SIZEOF_FLOAT == SIZEOF_DOUBLE && FLT_MANT_DIG == DBL_MANT_DIG
	return put_ix_float(xp, (float *)ip);
#else
	float xx = (float) *ip;
	int status = put_ix_float(xp, &xx);
	if(*ip > X_FLOAT_MAX || *ip < X_FLOAT_MIN)
		return NC_ERANGE;
	return status;
#endif
}

/* x_double */


#if X_SIZEOF_DOUBLE == SIZEOF_DOUBLE  && !defined(NO_IEEE_FLOAT)

static void
get_ix_double(const void *xp, double *ip)
{
	(void) memcpy(ip, xp, sizeof(double));
}

static int
put_ix_double(void *xp, const double *ip)
{
	(void) memcpy(xp, ip, X_SIZEOF_DOUBLE);
	return ENOERR;
}

#else

static void
cget_double_double(const void *xp, double *ip)
{
	const ieee_double *idp = (const ieee_double *) xp;
	cray_single *csp = (cray_single *) ip;

	if(idp->exp == 0)
	{
		/* ieee subnormal */
		*ip = (double)idp->mant;
		if(idp->mant != 0)
		{
			csp->exp -= (ieee_double_bias + 51);
		}
	}
	else
	{
		csp->exp  = idp->exp + cs_id_bias + 1;
		csp->mant = idp->mant >> (52 - 48 + 1);
		csp->mant |= (1 << (48 - 1));
	}
	csp->sign = idp->sign;
}

static int
cput_double_double(void *xp, const double *ip)
{
	ieee_double *idp = (ieee_double *) xp;
	const cray_single *csp = (const cray_single *) ip;

	int ieee_exp = csp->exp - cs_id_bias -1;

	idp->sign = csp->sign;

	if(ieee_exp >= 0x7ff)
	{
		/* NC_ERANGE => ieee Inf */
		idp->exp = 0x7ff;
		idp->mant = 0x0;
		return NC_ERANGE;
	}
	/* else */

	if(ieee_exp > 0)
	{
		/* normal ieee representation */
		idp->exp  = ieee_exp;
		/* assumes cray rep is in normal form */
		assert(csp->mant & 0x800000000000);
		idp->mant = (((csp->mant << 1) &
				0xffffffffffff) << (52 - 48));
	}
	else if(ieee_exp >= (-(52 -48)))
	{
		/* ieee subnormal, left  */
		const int lshift = (52 - 48) + ieee_exp;
		idp->mant = csp->mant << lshift;
		idp->exp  = 0;
	}
	else if(ieee_exp >= -52)
	{
		/* ieee subnormal, right  */
		const int rshift = (- (52 - 48) - ieee_exp);

		idp->mant = csp->mant >> rshift;
		idp->exp  = 0;
	}
	else
	{
		/* smaller than ieee can represent */
		idp->exp = 0;
		idp->mant = 0;
	}
	return ENOERR;
}

#define get_ix_double(xp, ip) cget_double_double((xp), (ip))
#define put_ix_double(xp, ip) cput_double_double((xp), (ip))

#endif /* NO_IEEE_FLOAT */

int
ncx_get_double_schar(const void *xp, schar *ip)
{
	double xx;
	get_ix_double(xp, &xx);
	*ip = (schar) xx;
	if(xx > SCHAR_MAX || xx < SCHAR_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_double_uchar(const void *xp, uchar *ip)
{
	double xx;
	get_ix_double(xp, &xx);
	*ip = (uchar) xx;
	if(xx > UCHAR_MAX || xx < 0)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_double_short(const void *xp, short *ip)
{
	double xx;
	get_ix_double(xp, &xx);
	*ip = (short) xx;
	if(xx > SHORT_MAX || xx < SHORT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_double_int(const void *xp, int *ip)
{
	double xx;
	get_ix_double(xp, &xx);
	*ip = (int) xx;
	if(xx > INT_MAX || xx < INT_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_double_long(const void *xp, long *ip)
{
	double xx;
	get_ix_double(xp, &xx);
	*ip = (long) xx;
	if(xx > LONG_MAX || xx < LONG_MIN)
		return NC_ERANGE;
	return ENOERR;
}

int
ncx_get_double_float(const void *xp, float *ip)
{
#if SIZEOF_FLOAT == SIZEOF_DOUBLE && FLT_MANT_DIG == DBL_MANT_DIG
	get_ix_double(xp, (double *)ip);
	return ENOERR;
#else
	double xx;
	get_ix_double(xp, &xx);
	if(xx > FLT_MAX || xx < (-FLT_MAX))
	{
		*ip = FLT_MAX;
		return NC_ERANGE;
	}
	if(xx < (-FLT_MAX))
	{
		*ip = (-FLT_MAX);
		return NC_ERANGE;
	}
	*ip = (float) xx;
	return ENOERR;
#endif
}

int
ncx_get_double_double(const void *xp, double *ip)
{
	get_ix_double(xp, ip);
	return ENOERR;
}


int
ncx_put_double_schar(void *xp, const schar *ip)
{
	double xx = (double) *ip;
	put_ix_double(xp, &xx);
	return ENOERR;
}

int
ncx_put_double_uchar(void *xp, const uchar *ip)
{
	double xx = (double) *ip;
	put_ix_double(xp, &xx);
	return ENOERR;
}

int
ncx_put_double_short(void *xp, const short *ip)
{
	double xx = (double) *ip;
	put_ix_double(xp, &xx);
	return ENOERR;
}

int
ncx_put_double_int(void *xp, const int *ip)
{
	double xx = (double) *ip;
	put_ix_double(xp, &xx);
	return ENOERR;
}

int
ncx_put_double_long(void *xp, const long *ip)
{
	double xx = (double) *ip;
	put_ix_double(xp, &xx);
	/* TODO: Deal with big guys */
	return ENOERR;
}

int
ncx_put_double_float(void *xp, const float *ip)
{
#if SIZEOF_FLOAT == SIZEOF_DOUBLE && FLT_MANT_DIG == DBL_MANT_DIG
	put_ix_double(xp, (double *)ip);
	return ENOERR;
#else
	double xx = (double) *ip;
	return put_ix_double(xp, &xx);
#endif
}

int
ncx_put_double_double(void *xp, const double *ip)
{
#if !defined(NO_IEEE_FLOAT)
	put_ix_double(xp, ip);
	return ENOERR;
#else
	return put_ix_double(xp, ip);
#endif
}


/* x_size_t */

int
ncx_put_size_t(void **xpp, const size_t *ulp)
{
	/* similar to put_ix_int() */
	uchar *cp = *xpp;
	assert(*ulp <= X_SIZE_MAX);

	*cp++ = (uchar)((*ulp) >> 24);
	*cp++ = (uchar)(((*ulp) & 0x00ff0000) >> 16);
	*cp++ = (uchar)(((*ulp) & 0x0000ff00) >>  8);
	*cp   = (uchar)((*ulp) & 0x000000ff);

	*xpp = (void *)((char *)(*xpp) + X_SIZEOF_SIZE_T);
	return ENOERR;
}

int
ncx_get_size_t(const void **xpp,  size_t *ulp)
{
	/* similar to get_ix_int */
	const uchar *cp = *xpp;
	assert((*cp & 0x80) == 0); /* sizes limited to 2^31 -1 in netcdf */

	*ulp = *cp++ << 24;
	*ulp |= (*cp++ << 16);
	*ulp |= (*cp++ << 8);
	*ulp |= *cp; 

	*xpp = (const void *)((const char *)(*xpp) + X_SIZEOF_SIZE_T);
	return ENOERR;
}

/* x_off_t */

int
ncx_put_off_t(void **xpp, const off_t *lp)
{
	/* similar to put_ix_int() */
	uchar *cp = *xpp;
		/* No negative offsets stored in netcdf */
	assert(*lp >= 0 && *lp <= X_OFF_MAX);

	*cp++ = (uchar)((*lp) >> 24);
	*cp++ = (uchar)(((*lp) & 0x00ff0000) >> 16);
	*cp++ = (uchar)(((*lp) & 0x0000ff00) >>  8);
	*cp   = (uchar)((*lp) & 0x000000ff);

	*xpp = (void *)((char *)(*xpp) + X_SIZEOF_OFF_T);
	return ENOERR;
}

int
ncx_get_off_t(const void **xpp, off_t *lp)
{
	/* similar to get_ix_int() */
	const uchar *cp = *xpp;
	assert((*cp & 0x80) == 0); /* No negative offsets stored in netcdf */

	*lp = *cp++ << 24;
	*lp |= (*cp++ << 16);
	*lp |= (*cp++ << 8);
	*lp |= *cp; 

	*xpp = (const void *)((const char *)(*xpp) + X_SIZEOF_OFF_T);
	return ENOERR;
}


/*
 * Aggregate numeric conversion functions.
 */



/* schar */

int
ncx_getn_schar_schar(const void **xpp, size_t nelems, schar *tp)
{
		(void) memcpy(tp, *xpp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems);
	return ENOERR;

}
int
ncx_getn_schar_uchar(const void **xpp, size_t nelems, uchar *tp)
{
		(void) memcpy(tp, *xpp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems);
	return ENOERR;

}
int
ncx_getn_schar_short(const void **xpp, size_t nelems, short *tp)
{
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (const void *)xp;
	return ENOERR;
}

int
ncx_getn_schar_int(const void **xpp, size_t nelems, int *tp)
{
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (const void *)xp;
	return ENOERR;
}

int
ncx_getn_schar_long(const void **xpp, size_t nelems, long *tp)
{
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (const void *)xp;
	return ENOERR;
}

int
ncx_getn_schar_float(const void **xpp, size_t nelems, float *tp)
{
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (const void *)xp;
	return ENOERR;
}

int
ncx_getn_schar_double(const void **xpp, size_t nelems, double *tp)
{
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (const void *)xp;
	return ENOERR;
}


int
ncx_pad_getn_schar_schar(const void **xpp, size_t nelems, schar *tp)
{
		size_t rndup = nelems % X_ALIGN;

	if(rndup)
		rndup = X_ALIGN - rndup;

	(void) memcpy(tp, *xpp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems + rndup);

	return ENOERR;

}
int
ncx_pad_getn_schar_uchar(const void **xpp, size_t nelems, uchar *tp)
{
		size_t rndup = nelems % X_ALIGN;

	if(rndup)
		rndup = X_ALIGN - rndup;

	(void) memcpy(tp, *xpp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems + rndup);

	return ENOERR;

}
int
ncx_pad_getn_schar_short(const void **xpp, size_t nelems, short *tp)
{
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (void *)(xp + rndup);
	return ENOERR;
}

int
ncx_pad_getn_schar_int(const void **xpp, size_t nelems, int *tp)
{
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (void *)(xp + rndup);
	return ENOERR;
}

int
ncx_pad_getn_schar_long(const void **xpp, size_t nelems, long *tp)
{
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (void *)(xp + rndup);
	return ENOERR;
}

int
ncx_pad_getn_schar_float(const void **xpp, size_t nelems, float *tp)
{
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (void *)(xp + rndup);
	return ENOERR;
}

int
ncx_pad_getn_schar_double(const void **xpp, size_t nelems, double *tp)
{
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		*tp++ = *xp++;
	}

	*xpp = (void *)(xp + rndup);
	return ENOERR;
}


int
ncx_putn_schar_schar(void **xpp, size_t nelems, const schar *tp)
{
		(void) memcpy(*xpp, tp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems);

	return ENOERR;

}
int
ncx_putn_schar_uchar(void **xpp, size_t nelems, const uchar *tp)
{
		(void) memcpy(*xpp, tp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems);

	return ENOERR;

}
int
ncx_putn_schar_short(void **xpp, size_t nelems, const short *tp)
{
	int status = ENOERR;
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_schar_int(void **xpp, size_t nelems, const int *tp)
{
	int status = ENOERR;
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_schar_long(void **xpp, size_t nelems, const long *tp)
{
	int status = ENOERR;
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_schar_float(void **xpp, size_t nelems, const float *tp)
{
	int status = ENOERR;
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_schar_double(void **xpp, size_t nelems, const double *tp)
{
	int status = ENOERR;
	schar *xp = (schar *)(*xpp);

	while(nelems-- != 0)
	{
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}

	*xpp = (void *)xp;
	return status;
}


int
ncx_pad_putn_schar_schar(void **xpp, size_t nelems, const schar *tp)
{
		size_t rndup = nelems % X_ALIGN;

	if(rndup)
		rndup = X_ALIGN - rndup;

	(void) memcpy(*xpp, tp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems);

	if(rndup)
	{
		(void) memcpy(*xpp, nada, rndup);
		*xpp = (void *)((char *)(*xpp) + rndup);
	}
	
	return ENOERR;

}
int
ncx_pad_putn_schar_uchar(void **xpp, size_t nelems, const uchar *tp)
{
		size_t rndup = nelems % X_ALIGN;

	if(rndup)
		rndup = X_ALIGN - rndup;

	(void) memcpy(*xpp, tp, nelems);
	*xpp = (void *)((char *)(*xpp) + nelems);

	if(rndup)
	{
		(void) memcpy(*xpp, nada, rndup);
		*xpp = (void *)((char *)(*xpp) + rndup);
	}
	
	return ENOERR;

}
int
ncx_pad_putn_schar_short(void **xpp, size_t nelems, const short *tp)
{
	int status = ENOERR;
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		/* N.B. schar as signed */
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}


	if(rndup)
	{
		(void) memcpy(xp, nada, rndup);
		xp += rndup;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_schar_int(void **xpp, size_t nelems, const int *tp)
{
	int status = ENOERR;
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		/* N.B. schar as signed */
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}


	if(rndup)
	{
		(void) memcpy(xp, nada, rndup);
		xp += rndup;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_schar_long(void **xpp, size_t nelems, const long *tp)
{
	int status = ENOERR;
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		/* N.B. schar as signed */
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}


	if(rndup)
	{
		(void) memcpy(xp, nada, rndup);
		xp += rndup;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_schar_float(void **xpp, size_t nelems, const float *tp)
{
	int status = ENOERR;
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		/* N.B. schar as signed */
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}


	if(rndup)
	{
		(void) memcpy(xp, nada, rndup);
		xp += rndup;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_schar_double(void **xpp, size_t nelems, const double *tp)
{
	int status = ENOERR;
	size_t rndup = nelems % X_ALIGN;
	schar *xp = (schar *)(*xpp);

	if(rndup)
		rndup = X_ALIGN - rndup;

	while(nelems-- != 0)
	{
		/* N.B. schar as signed */
		if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
			status = NC_ERANGE;
		*xp++ = (schar) *tp++;
	}


	if(rndup)
	{
		(void) memcpy(xp, nada, rndup);
		xp += rndup;
	}

	*xpp = (void *)xp;
	return status;
}



/* short */

int
ncx_getn_short_schar(const void **xpp, size_t nelems, schar *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_schar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

int
ncx_getn_short_uchar(const void **xpp, size_t nelems, uchar *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_uchar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

#if SHORT_USE_IEG
int
ncx_getn_short_short(const void **xpp, size_t nelems, short *tp)
{
	if(nelems > 0)
	{
		const int bo = bitoff(*xpp);
		const word *wp = *xpp;
		int ierr;
		*xpp = ((const char *) (*xpp) + nelems * X_SIZEOF_SHORT);
		ierr = IEG2CRAY(&Cray2_I16, &nelems, wp,
				&bo, tp, &UnitStride);
		assert(ierr >= 0);
		if(ierr > 0)
			return NC_ERANGE;
	}
	return ENOERR;
}
#else
int
ncx_getn_short_short(const void **xpp, const size_t nelems, short *tp)
{
	if(nelems > 0)
	{
	const word *wp = *xpp;
	const short *const last = &tp[nelems -1];
	const int rem = word_align(*xpp)/X_SIZEOF_SHORT;
	*xpp = ((const char *) (*xpp) + nelems * X_SIZEOF_SHORT);

	switch(rem) {
	case 3:
		*tp = (short)((*wp >> 32) & 0xffff);
		if(*tp & 0x8000)
			*tp |= (~(0xffff));
		if(tp == last)
			return ENOERR;
		tp++;
		/*FALLTHRU*/	
	case 2:
		*tp = (short)((*wp >> 16) & 0xffff);
		if(*tp & 0x8000)
			*tp |= (~(0xffff));
		if(tp == last)
			return ENOERR;
		tp++;
		/*FALLTHRU*/	
	case 1:
		*tp = (short)(*wp & 0xffff);
		if(*tp & 0x8000)
			*tp |= (~(0xffff));
		if(tp == last)
			return ENOERR;
		tp++;
		wp++; /* Note Bene */
		/*FALLTHRU*/	
	}

	assert((nelems - rem) != 0);
	{
		const int nwords = ((nelems - rem) * X_SIZEOF_SHORT)
					/ sizeof(word);
		const word *const endw = &wp[nwords];

#pragma _CRI ivdep
		for( ; wp < endw; wp++)
		{

			*tp = (short)(*wp >> 48);
			if(*tp & 0x8000)
				*tp |= (~(0xffff));
			tp++;

			*tp = (short)((*wp >> 32) & 0xffff);
			if(*tp & 0x8000)
				*tp |= (~(0xffff));
			tp++;

			*tp = (short)((*wp >> 16) & 0xffff);
			if(*tp & 0x8000)
				*tp |= (~(0xffff));
			tp++;

			*tp = (short)(*wp & 0xffff);
			if(*tp & 0x8000)
				*tp |= (~(0xffff));
			tp++;
		}
	}

	if(tp <= last)
	{
		*tp = (short)(*wp >> 48);
		if(*tp & 0x8000)
			*tp |= (~(0xffff));
		tp++;
	}
	if(tp <= last)
	{
		*tp = (short)((*wp >> 32) & 0xffff);
		if(*tp & 0x8000)
			*tp |= (~(0xffff));
		tp++;
	}
	if(tp <= last)
	{
		*tp = (short)((*wp >> 16) & 0xffff);
		if(*tp & 0x8000)
			*tp |= (~(0xffff));
		tp++;
	}

	}
	return ENOERR;
}
#endif

int
ncx_getn_short_int(const void **xpp, size_t nelems, int *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_int(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

int
ncx_getn_short_long(const void **xpp, size_t nelems, long *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_long(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

int
ncx_getn_short_float(const void **xpp, size_t nelems, float *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_float(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

int
ncx_getn_short_double(const void **xpp, size_t nelems, double *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_double(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}


int
ncx_pad_getn_short_schar(const void **xpp, size_t nelems, schar *tp)
{
	const size_t rndup = nelems % 2;

	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_schar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
		xp += X_SIZEOF_SHORT;
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_getn_short_uchar(const void **xpp, size_t nelems, uchar *tp)
{
	const size_t rndup = nelems % 2;

	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_uchar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
		xp += X_SIZEOF_SHORT;
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_getn_short_short(const void **xpp, size_t nelems, short *tp)
{
	const size_t rndup = nelems % 2;

	const int status = ncx_getn_short_short(xpp, nelems, tp);

	if(rndup != 0)
	{
		*xpp = ((char *) (*xpp) + X_SIZEOF_SHORT);
	}
		
	return status;
}

int
ncx_pad_getn_short_int(const void **xpp, size_t nelems, int *tp)
{
	const size_t rndup = nelems % 2;

	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_int(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
		xp += X_SIZEOF_SHORT;
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_getn_short_long(const void **xpp, size_t nelems, long *tp)
{
	const size_t rndup = nelems % 2;

	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_long(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
		xp += X_SIZEOF_SHORT;
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_getn_short_float(const void **xpp, size_t nelems, float *tp)
{
	const size_t rndup = nelems % 2;

	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_float(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
		xp += X_SIZEOF_SHORT;
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_getn_short_double(const void **xpp, size_t nelems, double *tp)
{
	const size_t rndup = nelems % 2;

	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_get_short_double(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
		xp += X_SIZEOF_SHORT;
		
	*xpp = (void *)xp;
	return status;
}


int
ncx_putn_short_schar(void **xpp, size_t nelems, const schar *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_schar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_short_uchar(void **xpp, size_t nelems, const uchar *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_uchar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}

#if SHORT_USE_IEG
int
ncx_putn_short_short(void **xpp, size_t nelems, const short *tp)
{
	if(nelems > 0)
	{
		word *wp = *xpp;
		const int bo = bitoff(*xpp);
		int ierr;
	
		*xpp = ((char *) (*xpp) + nelems * X_SIZEOF_SHORT);
	
		ierr = CRAY2IEG(&Cray2_I16, &nelems, wp,
				&bo, tp, &UnitStride);
		assert(ierr >= 0);
		if(ierr > 0)
			return NC_ERANGE;
	}
	return ENOERR;
}
#else
int
ncx_putn_short_short(void **xpp, const size_t nelems, const short *tp)
{
	int status = ENOERR;
	if(nelems == 0)
		return status;
{
	word *wp = *xpp;
	const short *const last = &tp[nelems -1];
	const int rem = word_align(*xpp)/X_SIZEOF_SHORT;
	*xpp = ((char *) (*xpp) + nelems * X_SIZEOF_SHORT);

	switch(rem) {
	case 3:
		*wp = ((*tp << 32) & 0x0000ffff00000000)
			    | (*wp & 0xffff0000ffffffff);
		if(*tp > X_SHORT_MAX || *tp < X_SHORT_MIN)
			status = NC_ERANGE;
		if(tp == last)
			return status;
		tp++;
		/*FALLTHRU*/	
	case 2:
		*wp = ((*tp << 16) & 0x00000000ffff0000)
			    | (*wp & 0xffffffff0000ffff);
		if(*tp > X_SHORT_MAX || *tp < X_SHORT_MIN)
			status = NC_ERANGE;
		if(tp == last)
			return status;
		tp++;
		/*FALLTHRU*/	
	case 1:
		*wp = (*tp         & 0x000000000000ffff)   
			    | (*wp & 0xffffffffffff0000);
		if(*tp > X_SHORT_MAX || *tp < X_SHORT_MIN)
			status = NC_ERANGE;
		if(tp == last)
			return status;
		tp++;
		wp++; /* Note Bene */
		/*FALLTHRU*/	
	}

	assert((nelems - rem) != 0);
	{
		const int nwords = ((nelems - rem) * X_SIZEOF_SHORT)
					/ sizeof(word);
		const word *const endw = &wp[nwords];

#pragma _CRI ivdep
		for( ; wp < endw; wp++)
		{
			*wp =	   (*tp      << 48)
				| ((*(tp +1) << 32) & 0x0000ffff00000000)
				| ((*(tp +2) << 16) & 0x00000000ffff0000)
				| ((*(tp +3)      ) & 0x000000000000ffff);

			{ int ii = 0;
			for(; ii < 4; ii++, tp++)
				if(*tp > X_SHORT_MAX || *tp < X_SHORT_MIN)
					status = NC_ERANGE;
			}
		}
	}

	if(tp <= last)
	{
		*wp = (*tp << 48)
			    | (*wp & 0x0000ffffffffffff);
		if(*tp > X_SHORT_MAX || *tp < X_SHORT_MIN)
			status = NC_ERANGE;
		tp++;
	}
	if(tp <= last)
	{
		*wp = ((*tp << 32) & 0x0000ffff00000000)
			    | (*wp & 0xffff0000ffffffff);
		if(*tp > X_SHORT_MAX || *tp < X_SHORT_MIN)
			status = NC_ERANGE;
		tp++;
	}
	if(tp <= last)
	{
		*wp = ((*tp << 16) & 0x00000000ffff0000)
			    | (*wp & 0xffffffff0000ffff);
		if(*tp > X_SHORT_MAX || *tp < X_SHORT_MIN)
			status = NC_ERANGE;
	}

	return status;
}
}
#endif

int
ncx_putn_short_int(void **xpp, size_t nelems, const int *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_int(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_short_long(void **xpp, size_t nelems, const long *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_long(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_short_float(void **xpp, size_t nelems, const float *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_float(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_short_double(void **xpp, size_t nelems, const double *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_double(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}


int
ncx_pad_putn_short_schar(void **xpp, size_t nelems, const schar *tp)
{
	const size_t rndup = nelems % 2;

	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_schar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
	{
		(void) memcpy(xp, nada, X_SIZEOF_SHORT);
		xp += X_SIZEOF_SHORT;	
	}
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_short_uchar(void **xpp, size_t nelems, const uchar *tp)
{
	const size_t rndup = nelems % 2;

	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_uchar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
	{
		(void) memcpy(xp, nada, X_SIZEOF_SHORT);
		xp += X_SIZEOF_SHORT;	
	}
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_short_short(void **xpp, size_t nelems, const short *tp)
{
	const size_t rndup = nelems % 2;

	const int status = ncx_putn_short_short(xpp, nelems, tp);

	if(rndup != 0)
	{
		*xpp = ((char *) (*xpp) + X_SIZEOF_SHORT);
	}
		
	return status;
}

int
ncx_pad_putn_short_int(void **xpp, size_t nelems, const int *tp)
{
	const size_t rndup = nelems % 2;

	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_int(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
	{
		(void) memcpy(xp, nada, X_SIZEOF_SHORT);
		xp += X_SIZEOF_SHORT;	
	}
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_short_long(void **xpp, size_t nelems, const long *tp)
{
	const size_t rndup = nelems % 2;

	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_long(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
	{
		(void) memcpy(xp, nada, X_SIZEOF_SHORT);
		xp += X_SIZEOF_SHORT;	
	}
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_short_float(void **xpp, size_t nelems, const float *tp)
{
	const size_t rndup = nelems % 2;

	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_float(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
	{
		(void) memcpy(xp, nada, X_SIZEOF_SHORT);
		xp += X_SIZEOF_SHORT;	
	}
		
	*xpp = (void *)xp;
	return status;
}

int
ncx_pad_putn_short_double(void **xpp, size_t nelems, const double *tp)
{
	const size_t rndup = nelems % 2;

	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
	{
		const int lstatus = ncx_put_short_double(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	if(rndup != 0)
	{
		(void) memcpy(xp, nada, X_SIZEOF_SHORT);
		xp += X_SIZEOF_SHORT;	
	}
		
	*xpp = (void *)xp;
	return status;
}



/* int */

int
ncx_getn_int_schar(const void **xpp, size_t nelems, schar *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_get_int_schar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

int
ncx_getn_int_uchar(const void **xpp, size_t nelems, uchar *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_get_int_uchar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

int
ncx_getn_int_short(const void **xpp, size_t nelems, short *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_get_int_short(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

#if INT_USE_IEG
int
ncx_getn_int_int(const void **xpp, size_t nelems, int *tp)
{
	if(nelems > 0)
	{
		const int bo = bitoff(*xpp);
		const word *wp = *xpp;
		int ierr;
		*xpp = ((const char *) (*xpp) + nelems * X_SIZEOF_INT);
		ierr = IEG2CRAY(&Cray2_I32, &nelems, wp,
				&bo, tp, &UnitStride);
		assert(ierr >= 0);
		if(ierr > 0)
			return NC_ERANGE;
	}
	return ENOERR;
}
#else
int
ncx_getn_int_int(const void **xpp, size_t nelems, int *tp)
{
	const int bo = byteoff(*xpp);

	if(nelems == 0)
		return ENOERR;

	if(bo != 0)
	{
		cget_int_int(*xpp, tp, bo);
		*xpp = ((char *) (*xpp) + X_SIZEOF_INT);
		nelems--;
		if(nelems == 0)
			return ENOERR;
		tp++;
	}

	assert(byteoff(*xpp) == 0);

	{
		const int nwords = (nelems * X_SIZEOF_INT)/sizeof(word);
		const word *wp = *xpp;
		const word *const end = &wp[nwords];

#pragma _CRI ivdep
		for( ; wp < end; wp++, tp += 2)
		{
			cget_int_int(wp, tp, 0);
			cget_int_int(wp, tp + 1, 1);
		}

		*xpp = ((char *) (*xpp) + nwords * sizeof(word)); 
		nelems -= (nwords * sizeof(word)/X_SIZEOF_INT);
		if(nelems != 0)
		{
			cget_int_int(wp, tp, 0);
			*xpp = ((char *) (*xpp) + X_SIZEOF_INT);
		}
	}

	return ENOERR;
}
#endif

int
ncx_getn_int_long(const void **xpp, size_t nelems, long *tp)
{
	const int bo = byteoff(*xpp);

	if(nelems == 0)
		return ENOERR;

	if(bo != 0)
	{
		cget_int_long(*xpp, tp, bo);
		*xpp = ((char *) (*xpp) + X_SIZEOF_INT);
		nelems--;
		if(nelems == 0)
			return ENOERR;
		tp++;
	}

	assert(byteoff(*xpp) == 0);

	{
		const int nwords = (nelems * X_SIZEOF_INT)/sizeof(word);
		const word *wp = *xpp;
		const word *const end = &wp[nwords];

#pragma _CRI ivdep
		for( ; wp < end; wp++, tp += 2)
		{
			cget_int_long(wp, tp, 0);
			cget_int_long(wp, tp + 1, 1);
		}

		*xpp = ((char *) (*xpp) + nwords * sizeof(word)); 
		nelems -= (nwords * sizeof(word)/X_SIZEOF_INT);
		if(nelems != 0)
		{
			cget_int_long(wp, tp, 0);
			*xpp = ((char *) (*xpp) + X_SIZEOF_INT);
		}
	}

	return ENOERR;
}

int
ncx_getn_int_float(const void **xpp, size_t nelems, float *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_get_int_float(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}

int
ncx_getn_int_double(const void **xpp, size_t nelems, double *tp)
{
	const char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_get_int_double(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (const void *)xp;
	return status;
}


int
ncx_putn_int_schar(void **xpp, size_t nelems, const schar *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_put_int_schar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_int_uchar(void **xpp, size_t nelems, const uchar *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_put_int_uchar(xp, tp);
		if(lstatus != ENOERR)
			status = lstatus;
	}

	*xpp = (void *)xp;
	return status;
}

int
ncx_putn_int_short(void **xpp, size_t nelems, const short *tp)
{
	char *xp = *xpp;
	int status = ENOERR;

	for( ; nelems != 0; nelems--, xp += X_SIZEOF_INT, tp++)
	{
		const int lstatus = ncx_put_int_short…