diff options
Diffstat (limited to 'arch/mips/math-emu/sp_fdp.c')
| -rw-r--r-- | arch/mips/math-emu/sp_fdp.c | 56 | 
1 files changed, 28 insertions, 28 deletions
diff --git a/arch/mips/math-emu/sp_fdp.c b/arch/mips/math-emu/sp_fdp.c index e1515aae016..1b266fb1697 100644 --- a/arch/mips/math-emu/sp_fdp.c +++ b/arch/mips/math-emu/sp_fdp.c @@ -5,8 +5,6 @@   * MIPS floating point support   * Copyright (C) 1994-2000 Algorithmics Ltd.   * - * ######################################################################## - *   *  This program is free software; you can distribute it and/or modify it   *  under the terms of the GNU General Public License (Version 2) as   *  published by the Free Software Foundation. @@ -18,59 +16,61 @@   *   *  You should have received a copy of the GNU General Public License along   *  with this program; if not, write to the Free Software Foundation, Inc., - *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * ######################################################################## + *  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.   */ -  #include "ieee754sp.h" +#include "ieee754dp.h" -ieee754sp ieee754sp_fdp(ieee754dp x) +union ieee754sp ieee754sp_fdp(union ieee754dp x)  { +	u32 rm; +  	COMPXDP; -	ieee754sp nan; +	union ieee754sp nan;  	EXPLODEXDP; -	CLEARCX; +	ieee754_clearcx();  	FLUSHXDP;  	switch (xc) {  	case IEEE754_CLASS_SNAN: -		SETCX(IEEE754_INVALID_OPERATION); -		return ieee754sp_nanxcpt(ieee754sp_indef(), "fdp"); +		ieee754_setcx(IEEE754_INVALID_OPERATION); +		return ieee754sp_nanxcpt(ieee754sp_indef()); +  	case IEEE754_CLASS_QNAN:  		nan = buildsp(xs, SP_EMAX + 1 + SP_EBIAS, (u32) -				(xm >> (DP_MBITS - SP_MBITS))); +				(xm >> (DP_FBITS - SP_FBITS)));  		if (!ieee754sp_isnan(nan))  			nan = ieee754sp_indef(); -		return ieee754sp_nanxcpt(nan, "fdp", x); +		return ieee754sp_nanxcpt(nan); +  	case IEEE754_CLASS_INF:  		return ieee754sp_inf(xs); +  	case IEEE754_CLASS_ZERO:  		return ieee754sp_zero(xs); +  	case IEEE754_CLASS_DNORM:  		/* can't possibly be sp representable */ -		SETCX(IEEE754_UNDERFLOW); -		SETCX(IEEE754_INEXACT); -		if ((ieee754_csr.rm == IEEE754_RU && !xs) || -				(ieee754_csr.rm == IEEE754_RD && xs)) -			return ieee754sp_xcpt(ieee754sp_mind(xs), "fdp", x); -		return ieee754sp_xcpt(ieee754sp_zero(xs), "fdp", x); +		ieee754_setcx(IEEE754_UNDERFLOW); +		ieee754_setcx(IEEE754_INEXACT); +		if ((ieee754_csr.rm == FPU_CSR_RU && !xs) || +				(ieee754_csr.rm == FPU_CSR_RD && xs)) +			return ieee754sp_mind(xs); +		return ieee754sp_zero(xs); +  	case IEEE754_CLASS_NORM:  		break;  	} -	{ -		u32 rm; - -		/* convert from DP_MBITS to SP_MBITS+3 with sticky right shift -		 */ -		rm = (xm >> (DP_MBITS - (SP_MBITS + 3))) | -		    ((xm << (64 - (DP_MBITS - (SP_MBITS + 3)))) != 0); +	/* +	 * Convert from DP_FBITS to SP_FBITS+3 with sticky right shift. +	 */ +	rm = (xm >> (DP_FBITS - (SP_FBITS + 3))) | +	     ((xm << (64 - (DP_FBITS - (SP_FBITS + 3)))) != 0); -		SPNORMRET1(xs, xe, rm, "fdp", x); -	} +	return ieee754sp_format(xs, xe, rm);  }  | 
