/*-
 * Copyright (c) 1985 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Computer Consoles Inc.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)Kfp.h	7.1 (Berkeley) 12/06/90
 */

/*
 * Opcodes to be emulated by kernel software.
 */
#define	CVLF	0x76
#define	CVLD	0x77
#define	CVFL	0x86
#define	CVDL	0x87
#define	LDFD	0x97
#define	CVDF	0xa6
#define	ADDF   	0xc6
#define	ADDD	0xc7
#define	SUBF	0xd6
#define	SUBD	0xd7
#define	MULF	0xe6
#define	MULD	0xe7
#define	DIVF	0xf6
#define	DIVD	0xf7
#define	SINF	0x05
#define	COSF	0x15
#define	ATANF	0x25
#define	LOGF	0x35
#define	SQRTF	0x45
#define	EXPF	0x55

/* HFS bits:	*/
#define HFS_UNDF	0x008	/* float underflow */
#define HFS_OVF		0x004	/* float overflow */

#define HFS_RANGE	0x8000	/* set u_error to ERANGE */
#define HFS_DOM		0x4000	/* set u_error to EDOM */
#define HFS_DIVZ	0x2000  /* divide by zero flag */

/* destination types for the f.p. opcodes:	*/
#define LONG	01
#define FLOAT	02
#define	DOUBLE	03

/* exceptions:	*/
#define OVF_EXC		0x003	/* floating overflow */
#define UNDF_EXC	0x004 	/* floating underflow */
#define DIV0_EXC	0x005	/* floating divide by 0 */