text: /*
   * CDDL HEADER START
   *
   * The contents of this file are subject to the terms of the
   * Common Development and Distribution License, Version 1.0 only
   * (the "License").  You may not use this file except in compliance
   * with the License.
   *
   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   * or http://www.opensolaris.org/os/licensing.
   * See the License for the specific language governing permissions
   * and limitations under the License.
   *
   * When distributing Covered Code, include this CDDL HEADER in each
   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
   * If applicable, add the following below this CDDL HEADER, with the
   * fields enclosed by brackets "[]" replaced with your own identifying
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1987 by Sun Microsystems, Inc.
   *	All rights reserved.
   */
  
  #ifndef	_SYS_FPU_IEEE_H
  #define	_SYS_FPU_IEEE_H
  
  #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SunOS-4.0 1.4 */
  
  #ifdef	__cplusplus
  extern "C" {
  #endif
  
  /*
   * Sparc IEEE floating-point support PUBLIC include file.
   */
  
  /*	PUBLIC TYPES 	*/
  
  /*
   * IEEE Arithmetic types... numbered to correspond to fsr fields.
   */
  
  /*
   * rounding direction
   */
  enum fp_rounding_direction {
  	fp_rd_nearest	= 0,
  	fp_rd_zero	= 1,
  	fp_rd_plus	= 2,
  	fp_rd_minus	= 3
  };
  
  /*
   * extended rounding precision
   */
  enum fp_rounding_precision {
  	fp_rp_extended	= 0,
  	fp_rp_single	= 1,
  	fp_rp_double	= 2,
  	fp_rp_3		= 3
  };
  
  /*
   * exceptions according to cexc bit number
   */
  enum fp_exception_type {
  	fp_inexact	= 0,
  	fp_divide	= 1,
  	fp_underflow	= 2,
  	fp_overflow	= 3,
  	fp_invalid	= 4
  };
  
  /*
   * floating-point classes according to fclass
   */
  enum fp_class_type {
  	fp_zero		= 0,
  	fp_normal	= 1,		/* Includes subnormal. */
  	fp_infinity   	= 2,
  	fp_nan		= 3,		/* Includes quiet and signaling NaN. */
  };
  
  
  /* PUBLIC GLOBAL VARIABLES */
  
  unsigned fp_accrued_exceptions;	/* Sticky accumulated exceptions. */
  
  
  /* PUBLIC FUNCTIONS */
  
  #ifdef	__STDC__
  
  extern enum
  fp_rounding_direction swap_rounding_direction(enum fp_rounding_direction);
  
  /* Change rounding mode; return previous. */
  
  extern int swap_accrued_exceptions(int);
  
  /* Change accrued exceptions; return previous. */
  
  #else	/* __STDC__ */
  
  extern enum fp_rounding_direction swap_rounding_direction(/* rd */);
  /*	extern enum fp_rounding_direction rd;  */
  
  /* Change rounding mode; return previous. */
  
  extern int swap_accrued_exceptions(/* x */);
  /*	int x; */
  
  /* Change accrued exceptions; return previous. */
  
  #endif	/* ! __STDC__ */
  
  #ifdef	__cplusplus
  }
  #endif
  
  #endif	/* _SYS_FPU_IEEE_H */
  