Source to osfmk/mach/ppc/exception.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
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/* 
 * Copyright (c) 1990, 1991, 1992, The University of Utah and
 * the Center for Software Science at the University of Utah (CSS).
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 */

#ifndef	_MACH_PPC_EXCEPTION_H_
#define _MACH_PPC_EXCEPTION_H_


/* STATUS - TODO - this is just transcribed from hp stuff */

#define	EXC_TYPES_COUNT	10	/* incl. illegal exception 0 */

#define EXCEPTION_CODE_MAX 2    /* elements in vector (code+subcode) */
/*
 *	EXC_BAD_INSTRUCTION
 */

#define EXC_PPC_INVALID_SYSCALL	1    /* invalid syscall number */
#define EXC_PPC_UNIPL_INST	2    /* unimplemented instruction */
#define EXC_PPC_PRIVINST	3    /* priviledged instruction */
#define EXC_PPC_PRIVREG		4    /* priviledged register */
#define EXC_PPC_TRACE		5    /* trace/single-step */

/*
 *	EXC_BAD_ACCESS
 *	Note: do not conflict with kern_return_t values returned by vm_fault
 */

#define EXC_PPC_VM_PROT_READ		0x101 /* error reading syscall args */
#define EXC_PPC_BADSPACE		0x102 /* bad space referenced */
#define EXC_PPC_UNALIGNED		0x103 /* unaligned data reference */

/*
 *	EXC_ARITHMETIC
 */

#define EXC_PPC_OVERFLOW		1    /* integer overflow */
#define EXC_PPC_ZERO_DIVIDE		2    /* integer divide by zero */
#define EXC_PPC_FLT_INEXACT		3    /* IEEE inexact exception */
#define EXC_PPC_FLT_ZERO_DIVIDE		4    /* IEEE zero divide */
#define EXC_PPC_FLT_UNDERFLOW		5    /* IEEE floating underflow */
#define EXC_PPC_FLT_OVERFLOW		6    /* IEEE floating overflow */
#define EXC_PPC_FLT_NOT_A_NUMBER	7    /* IEEE not a number */

/*
 * EXC_PPC_NOEMULATION should go away when we add software emulation
 * for floating point. Right now we don't support this.
 */

#define EXC_PPC_NOEMULATION		8	/* no floating point emulation */
#define EXC_PPC_ALTIVECASSIST	9	/* Altivec Denorm Assist */

/*
 *	EXC_SOFTWARE
 */
#define EXC_PPC_TRAP		1		/* Program trap */
#define EXC_PPC_MIGRATE		0x10100		/* Time to bolt */


/*
 *	EXC_BREAKPOINT
 */

#define EXC_PPC_BREAKPOINT		EXC_PPC_TRAP    /* breakpoint trap */

/*
 *	machine dependent exception masks
 */
#define	EXC_MASK_MACHINE	0

#endif	/* _MACH_PPC_EXCEPTION_H_ */