X-Git-Url: http://git.annexia.org/?p=portablexdr.git;a=blobdiff_plain;f=xdr_float.c;fp=xdr_float.c;h=0000000000000000000000000000000000000000;hp=5425af9e73f2b95216cc36279cbea7eb483f4cd6;hb=3a2a32d8a4a3c514568305e122d65ffca990f33d;hpb=a749a97c9b03ee3293976f4fb9dcc2507f8d9cba diff --git a/xdr_float.c b/xdr_float.c deleted file mode 100644 index 5425af9..0000000 --- a/xdr_float.c +++ /dev/null @@ -1,279 +0,0 @@ -/* @(#)xdr_float.c 2.1 88/07/29 4.0 RPCSRC */ -/* - * Sun RPC is a product of Sun Microsystems, Inc. and is provided for - * unrestricted use provided that this legend is included on all tape - * media and as a part of the software program in whole or part. Users - * may copy or modify Sun RPC without charge, but are not authorized - * to license or distribute it to anyone else except as part of a product or - * program developed by the user. - * - * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE - * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR - * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. - * - * Sun RPC is provided with no support and without any obligation on the - * part of Sun Microsystems, Inc. to assist in its use, correction, - * modification or enhancement. - * - * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE - * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC - * OR ANY PART THEREOF. - * - * In no event will Sun Microsystems, Inc. be liable for any lost revenue - * or profits or other special, indirect and consequential damages, even if - * Sun has been advised of the possibility of such damages. - * - * Sun Microsystems, Inc. - * 2550 Garcia Avenue - * Mountain View, California 94043 - */ -#if !defined(lint) && defined(SCCSIDS) -static char sccsid[] = "@(#)xdr_float.c 1.12 87/08/11 Copyr 1984 Sun Micro"; -#endif - -/* - * xdr_float.c, Generic XDR routines impelmentation. - * - * Copyright (C) 1984, Sun Microsystems, Inc. - * - * These are the "floating point" xdr routines used to (de)serialize - * most common data items. See xdr.h for more info on the interface to - * xdr. - */ - -#include - -#include -#include - -#if defined(__CYGWIN32__) || defined(__MINGW32__) -#define vax -#endif - -/* - * NB: Not portable. - * This routine works on Suns (Sky / 68000's) and Vaxen. - */ - -#ifdef vax - -/* What IEEE single precision floating point looks like on a Vax */ -struct ieee_single { - unsigned int mantissa: 23; - unsigned int exp : 8; - unsigned int sign : 1; -}; - -/* Vax single precision floating point */ -struct vax_single { - unsigned int mantissa1 : 7; - unsigned int exp : 8; - unsigned int sign : 1; - unsigned int mantissa2 : 16; -}; - -#define VAX_SNG_BIAS 0x81 -#define IEEE_SNG_BIAS 0x7f - -static struct sgl_limits { - struct vax_single s; - struct ieee_single ieee; -} sgl_limits[2] = { - {{ 0x7f, 0xff, 0x0, 0xffff }, /* Max Vax */ - { 0x0, 0xff, 0x0 }}, /* Max IEEE */ - {{ 0x0, 0x0, 0x0, 0x0 }, /* Min Vax */ - { 0x0, 0x0, 0x0 }} /* Min IEEE */ -}; -#endif /* vax */ - -bool_t -xdr_float(xdrs, fp) - register XDR *xdrs; - register float *fp; -{ -#if defined(vax) - struct ieee_single is; - struct vax_single vs, *vsp; - struct sgl_limits *lim; - int i; -#endif - switch (xdrs->x_op) { - - case XDR_ENCODE: -#if !defined(vax) - return (XDR_PUTLONG(xdrs, (long *)fp)); -#else - vs = *((struct vax_single *)fp); - for (i = 0, lim = sgl_limits; - i < sizeof(sgl_limits)/sizeof(struct sgl_limits); - i++, lim++) { - if ((vs.mantissa2 == lim->s.mantissa2) && - (vs.exp == lim->s.exp) && - (vs.mantissa1 == lim->s.mantissa1)) { - is = lim->ieee; - goto shipit; - } - } - is.exp = vs.exp - VAX_SNG_BIAS + IEEE_SNG_BIAS; - is.mantissa = (vs.mantissa1 << 16) | vs.mantissa2; - shipit: - is.sign = vs.sign; - return (XDR_PUTLONG(xdrs, (long *)(void *)&is)); -#endif - - case XDR_DECODE: -#if !defined(vax) - return (XDR_GETLONG(xdrs, (long *)fp)); -#else - vsp = (struct vax_single *)fp; - if (!XDR_GETLONG(xdrs, (long *)(void *)&is)) - return (FALSE); - for (i = 0, lim = sgl_limits; - i < sizeof(sgl_limits)/sizeof(struct sgl_limits); - i++, lim++) { - if ((is.exp == lim->ieee.exp) && - (is.mantissa == lim->ieee.mantissa)) { - *vsp = lim->s; - goto doneit; - } - } - vsp->exp = is.exp - IEEE_SNG_BIAS + VAX_SNG_BIAS; - vsp->mantissa2 = is.mantissa; - vsp->mantissa1 = (is.mantissa >> 16); - doneit: - vsp->sign = is.sign; - return (TRUE); -#endif - - case XDR_FREE: - return (TRUE); - } - return (FALSE); -} - -/* - * This routine works on Suns (Sky / 68000's) and Vaxen. - */ - -#ifdef vax -/* What IEEE double precision floating point looks like on a Vax */ -struct ieee_double { - unsigned int mantissa1 : 20; - unsigned int exp : 11; - unsigned int sign : 1; - unsigned int mantissa2 : 32; -}; - -/* Vax double precision floating point */ -struct vax_double { - unsigned int mantissa1 : 7; - unsigned int exp : 8; - unsigned int sign : 1; - unsigned int mantissa2 : 16; - unsigned int mantissa3 : 16; - unsigned int mantissa4 : 16; -}; - -#define VAX_DBL_BIAS 0x81 -#define IEEE_DBL_BIAS 0x3ff -#define MASK(nbits) ((1 << nbits) - 1) - -static struct dbl_limits { - struct vax_double d; - struct ieee_double ieee; -} dbl_limits[2] = { - {{ 0x7f, 0xff, 0x0, 0xffff, 0xffff, 0xffff }, /* Max Vax */ - { 0x0, 0x7ff, 0x0, 0x0 }}, /* Max IEEE */ - {{ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, /* Min Vax */ - { 0x0, 0x0, 0x0, 0x0 }} /* Min IEEE */ -}; - -#endif /* vax */ - - -bool_t -xdr_double(xdrs, dp) - register XDR *xdrs; - double *dp; -{ - register long *lp; -#if defined(vax) - struct ieee_double id; - struct vax_double vd; - register struct dbl_limits *lim; - int i; -#endif - - switch (xdrs->x_op) { - - case XDR_ENCODE: -#if !defined(vax) - lp = (long *)dp; -#else - vd = *((struct vax_double *)dp); - for (i = 0, lim = dbl_limits; - i < sizeof(dbl_limits)/sizeof(struct dbl_limits); - i++, lim++) { - if ((vd.mantissa4 == lim->d.mantissa4) && - (vd.mantissa3 == lim->d.mantissa3) && - (vd.mantissa2 == lim->d.mantissa2) && - (vd.mantissa1 == lim->d.mantissa1) && - (vd.exp == lim->d.exp)) { - id = lim->ieee; - goto shipit; - } - } - id.exp = vd.exp - VAX_DBL_BIAS + IEEE_DBL_BIAS; - id.mantissa1 = (vd.mantissa1 << 13) | (vd.mantissa2 >> 3); - id.mantissa2 = ((vd.mantissa2 & MASK(3)) << 29) | - (vd.mantissa3 << 13) | - ((vd.mantissa4 >> 3) & MASK(13)); - shipit: - id.sign = vd.sign; - lp = (long *)(void *)&id; -#endif -#if defined(__CYGWIN32__) || defined(__MINGW32__) - return (XDR_PUTLONG(xdrs, lp+1) && XDR_PUTLONG(xdrs, lp)); -#else - return (XDR_PUTLONG(xdrs, lp++) && XDR_PUTLONG(xdrs, lp)); -#endif - - case XDR_DECODE: -#if !defined(vax) - lp = (long *)dp; -#if defined(__CYGWIN32__) || defined(__MINGW32__) - return (XDR_GETLONG(xdrs, lp+1) && XDR_GETLONG(xdrs, lp)); -#else - return (XDR_GETLONG(xdrs, lp++) && XDR_GETLONG(xdrs, lp)); -#endif -#else - lp = (long *)(void *)&id; - if (!XDR_GETLONG(xdrs, lp++) || !XDR_GETLONG(xdrs, lp)) - return (FALSE); - for (i = 0, lim = dbl_limits; - i < sizeof(dbl_limits)/sizeof(struct dbl_limits); - i++, lim++) { - if ((id.mantissa2 == lim->ieee.mantissa2) && - (id.mantissa1 == lim->ieee.mantissa1) && - (id.exp == lim->ieee.exp)) { - vd = lim->d; - goto doneit; - } - } - vd.exp = id.exp - IEEE_DBL_BIAS + VAX_DBL_BIAS; - vd.mantissa1 = (id.mantissa1 >> 13); - vd.mantissa2 = ((id.mantissa1 & MASK(13)) << 3) | - (id.mantissa2 >> 29); - vd.mantissa3 = (id.mantissa2 >> 13); - vd.mantissa4 = (id.mantissa2 << 3); - doneit: - vd.sign = id.sign; - *dp = *((double *)(void *)&vd); - return (TRUE); -#endif - - case XDR_FREE: - return (TRUE); - } - return (FALSE); -}