patch-2.3.30 linux/arch/sparc/math-emu/sfp-machine.h

• Lines: 206
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.29/linux/arch/sparc/math-emu/sfp-machine.h
• Orig date: Tue Aug 31 17:29:13 1999

diff -u --recursive --new-file v2.3.29/linux/arch/sparc/math-emu/sfp-machine.h linux/arch/sparc/math-emu/sfp-machine.h
@@ -1,205 +0,0 @@
-/* Machine-dependent software floating-point definitions.
-   Sparc userland (_Q_*) version.
-   Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com),
-		  Jakub Jelinek (jj@ultra.linux.cz),
-		  David S. Miller (davem@redhat.com) and
-		  Peter Maydell (pmaydell@chiark.greenend.org.uk).
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If
-   not, write to the Free Software Foundation, Inc.,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-#ifndef _SFP_MACHINE_H
-#define _SFP_MACHINE_H
-   
-#define _FP_W_TYPE_SIZE		32
-#define _FP_W_TYPE		unsigned long
-#define _FP_WS_TYPE		signed long
-#define _FP_I_TYPE		long
-
-#define _FP_MUL_MEAT_S(R,X,Y)					\
-  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
-#define _FP_MUL_MEAT_D(R,X,Y)					\
-  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
-#define _FP_MUL_MEAT_Q(R,X,Y)					\
-  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
-
-#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_udiv(S,R,X,Y)
-#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
-#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
-
-#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
-#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
-#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
-#define _FP_NANSIGN_S		0
-#define _FP_NANSIGN_D		0
-#define _FP_NANSIGN_Q		0
-
-#define _FP_KEEPNANFRACP 1
-
-/* If one NaN is signaling and the other is not,
- * we choose that one, otherwise we choose X.
- */
-/* For _Qp_* and _Q_*, this should prefer X, for
- * CPU instruction emulation this should prefer Y.
- * (see SPAMv9 B.2.2 section).
- */
-#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
-  do {								\
-    if ((_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)		\
-	&& !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs))	\
-      {								\
-	R##_s = X##_s;						\
-	_FP_FRAC_COPY_##wc(R,X);				\
-      }								\
-    else							\
-      {								\
-	R##_s = Y##_s;						\
-	_FP_FRAC_COPY_##wc(R,Y);				\
-      }								\
-    R##_c = FP_CLS_NAN;						\
-  } while (0)
-
-/* Some assembly to speed things up. */
-#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0)			\
-  __asm__ ("addcc %r7,%8,%2
-	    addxcc %r5,%6,%1
-	    addx %r3,%4,%0"						\
-	   : "=r" ((USItype)(r2)),					\
-	     "=&r" ((USItype)(r1)),					\
-	     "=&r" ((USItype)(r0))					\
-	   : "%rJ" ((USItype)(x2)),					\
-	     "rI" ((USItype)(y2)),					\
-	     "%rJ" ((USItype)(x1)),					\
-	     "rI" ((USItype)(y1)),					\
-	     "%rJ" ((USItype)(x0)),					\
-	     "rI" ((USItype)(y0))					\
-	   : "cc")
-
-#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0)			\
-  __asm__ ("subcc %r7,%8,%2
-	    subxcc %r5,%6,%1
-	    subx %r3,%4,%0"						\
-	   : "=r" ((USItype)(r2)),					\
-	     "=&r" ((USItype)(r1)),					\
-	     "=&r" ((USItype)(r0))					\
-	   : "%rJ" ((USItype)(x2)),					\
-	     "rI" ((USItype)(y2)),					\
-	     "%rJ" ((USItype)(x1)),					\
-	     "rI" ((USItype)(y1)),					\
-	     "%rJ" ((USItype)(x0)),					\
-	     "rI" ((USItype)(y0))					\
-	   : "cc")
-
-#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0)		\
-  do {									\
-    /* We need to fool gcc,  as we need to pass more than 10		\
-       input/outputs.  */						\
-    register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2");		\
-    __asm__ __volatile__ ("
-	    addcc %r8,%9,%1
-	    addxcc %r6,%7,%0
-	    addxcc %r4,%5,%%g2
-	    addx %r2,%3,%%g1"						\
-	   : "=&r" ((USItype)(r1)),					\
-	     "=&r" ((USItype)(r0))					\
-	   : "%rJ" ((USItype)(x3)),					\
-	     "rI" ((USItype)(y3)),					\
-	     "%rJ" ((USItype)(x2)),					\
-	     "rI" ((USItype)(y2)),					\
-	     "%rJ" ((USItype)(x1)),					\
-	     "rI" ((USItype)(y1)),					\
-	     "%rJ" ((USItype)(x0)),					\
-	     "rI" ((USItype)(y0))					\
-	   : "cc", "g1", "g2");						\
-    __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2));			\
-    r3 = _t1; r2 = _t2;							\
-  } while (0)
-
-#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0)		\
-  do {									\
-    /* We need to fool gcc,  as we need to pass more than 10		\
-       input/outputs.  */						\
-    register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2");		\
-    __asm__ __volatile__ ("
-	    subcc %r8,%9,%1
-	    subxcc %r6,%7,%0
-	    subxcc %r4,%5,%%g2
-	    subx %r2,%3,%%g1"						\
-	   : "=&r" ((USItype)(r1)),					\
-	     "=&r" ((USItype)(r0))					\
-	   : "%rJ" ((USItype)(x3)),					\
-	     "rI" ((USItype)(y3)),					\
-	     "%rJ" ((USItype)(x2)),					\
-	     "rI" ((USItype)(y2)),					\
-	     "%rJ" ((USItype)(x1)),					\
-	     "rI" ((USItype)(y1)),					\
-	     "%rJ" ((USItype)(x0)),					\
-	     "rI" ((USItype)(y0))					\
-	   : "cc", "g1", "g2");						\
-    __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2));			\
-    r3 = _t1; r2 = _t2;							\
-  } while (0)
-
-#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) __FP_FRAC_SUB_3(x2,x1,x0,x2,x1,x0,y2,y1,y0)
-
-#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) __FP_FRAC_SUB_4(x3,x2,x1,x0,x3,x2,x1,x0,y3,y2,y1,y0)
-
-#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i)					\
-  __asm__ ("addcc %3,%4,%3
-	    addxcc %2,%%g0,%2
-	    addxcc %1,%%g0,%1
-	    addx %0,%%g0,%0"						\
-	   : "=&r" ((USItype)(x3)),					\
-	     "=&r" ((USItype)(x2)),					\
-	     "=&r" ((USItype)(x1)),					\
-	     "=&r" ((USItype)(x0))					\
-	   : "rI" ((USItype)(i)),					\
-	     "0" ((USItype)(x3)),					\
-	     "1" ((USItype)(x2)),					\
-	     "2" ((USItype)(x1)),					\
-	     "3" ((USItype)(x0))					\
-	   : "cc")
-
-#ifndef __SMP__
-extern struct task_struct *last_task_used_math;
-#endif
-
-/* Obtain the current rounding mode. */
-#ifndef FP_ROUNDMODE
-#ifdef __SMP__
-#define FP_ROUNDMODE	((current->thread.fsr >> 30) & 0x3)
-#else
-#define FP_ROUNDMODE	((last_task_used_math->thread.fsr >> 30) & 0x3)
-#endif
-#endif
-
-/* Exception flags. */
-#define FP_EX_INVALID		(1 << 4)
-#define FP_EX_OVERFLOW		(1 << 3)
-#define FP_EX_UNDERFLOW		(1 << 2)
-#define FP_EX_DIVZERO		(1 << 1)
-#define FP_EX_INEXACT		(1 << 0)
-
-#define FP_HANDLE_EXCEPTIONS return _fex
-
-#ifdef __SMP__
-#define FP_INHIBIT_RESULTS ((current->thread.fsr >> 23) & _fex)
-#else
-#define FP_INHIBIT_RESULTS ((last_task_used_math->thread.fsr >> 23) & _fex)
-#endif
-
-#endif