/*
 * Copyright (c) 1989 by Sun Microsystems, Inc.
 */

#ifndef	_SYS_MACHTRAP_H
#define	_SYS_MACHTRAP_H

#pragma ident	"@(#)machtrap.h	1.4	99/08/03 SMI"

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * This file is machine specific as is.
 * Some trap types could be made common
 * for all sparcs, but that is a project
 * in and of itself.
 */

/*
 * Trap type values.
 */
#define	TT(X)			((X)<<4)

/*
 * The Coprocessor bit.
 */
#define	CP_BIT 0x20

/*
 * Hardware traps.
 */
#define	T_RESET			0x00
#define	T_TEXT_FAULT		0x01
#define	T_UNIMP_INSTR		0x02
#define	T_PRIV_INSTR		0x03
#define	T_FP_DISABLED		0x04
#define	T_CP_DISABLED		(0x4 | CP_BIT)
#define	T_WIN_OVERFLOW		0x05
#define	T_WIN_UNDERFLOW		0x06
#define	T_ALIGNMENT		0x07
#define	T_FP_EXCEPTION		0x08
#define	T_CP_EXCEPTION		(0x8 | CP_BIT)
#define	T_DATA_FAULT		0x09
#define	T_TAG_OVERFLOW		0x0A
#define	T_INT			0x10
#define	T_INT_LEVEL		0x0F
#define	T_INT_LEVEL_1		0x11
#define	T_INT_LEVEL_2		0x12
#define	T_INT_LEVEL_3		0x13
#define	T_INT_LEVEL_4		0x14
#define	T_INT_LEVEL_5		0x15
#define	T_INT_LEVEL_6		0x16
#define	T_INT_LEVEL_7		0x17
#define	T_INT_LEVEL_8		0x18
#define	T_INT_LEVEL_9		0x19
#define	T_INT_LEVEL_10		0x1A
#define	T_INT_LEVEL_11		0x1B
#define	T_INT_LEVEL_12		0x1C
#define	T_INT_LEVEL_13		0x1D
#define	T_INT_LEVEL_14		0x1E
#define	T_INT_LEVEL_15		0x1F
#define	T_TEXT_ERROR		0x21
#define	T_UNIMP_FLUSH		0x25	/* IFLUSH - unimplemented flush */
#define	T_DATA_ERROR		0x29
#define	T_IDIV0			0x2A
#define	T_DATA_STORE		0x2B

/*
 * Software trap type values.
 */
#define	T_SOFTWARE_TRAP		0x80
#define	T_ESOFTWARE_TRAP	0xFF
#define	T_OSYSCALL		(T_SOFTWARE_TRAP + ST_OSYSCALL)
#define	T_BREAKPOINT		(T_SOFTWARE_TRAP + ST_BREAKPOINT)
#define	T_DIV0			(T_SOFTWARE_TRAP + ST_DIV0)
#define	T_FLUSH_WINDOWS		(T_SOFTWARE_TRAP + ST_FLUSH_WINDOWS)
#define	T_CLEAN_WINDOWS		(T_SOFTWARE_TRAP + ST_CLEAN_WINDOWS)
#define	T_RANGE_CHECK		(T_SOFTWARE_TRAP + ST_RANGE_CHECK)
#define	T_FIX_ALIGN		(T_SOFTWARE_TRAP + ST_FIX_ALIGN)
#define	T_INT_OVERFLOW		(T_SOFTWARE_TRAP + ST_INT_OVERFLOW)
#define	T_SYSCALL		(T_SOFTWARE_TRAP + ST_SYSCALL)
#define	T_HOTPATCH_TRAP		(T_SOFTWARE_TRAP + ST_HOTPATCH_TRAP)

#define	T_GETCC			(T_SOFTWARE_TRAP + ST_GETCC)
#define	T_SETCC			(T_SOFTWARE_TRAP + ST_SETCC)


/*
 * Pseudo traps.
 */
#define	T_INTERRUPT		0x100
#define	T_SPURIOUS		(T_INTERRUPT | T_INT)
#define	T_FAULT			0x200
#define	T_AST			0x400
#define	T_FLUSH_PCB		(T_AST + 0x10)
#define	T_SYS_RTT_PAGE		(T_AST + 0x20)
#define	T_ZERO			0x00

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_MACHTRAP_H */
