/*
 * jit-rules-interp.h - Rules that define the interpreter characteristics.
 *
 * Copyright (C) 2004  Southern Storm Software, Pty Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef	_JIT_RULES_INTERP_H
#define	_JIT_RULES_INTERP_H

#include "jit-interp.h"

#ifdef	__cplusplus
extern	"C" {
#endif

/*
 * Information about all of the registers, in allocation order.
 */
#define	JIT_REG_INFO	\
	{"r0", 0, -1, JIT_REG_ALL | JIT_REG_CALL_USED | \
				  JIT_REG_START_STACK | JIT_REG_IN_STACK}, \
	{"r1", 1, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r2", 2, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r3", 3, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r4", 4, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r5", 5, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r6", 6, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r7", 7, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r8", 8, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r9", 9, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r10", 10, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r11", 11, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r12", 12, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r13", 13, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r14", 14, -1, JIT_REG_ALL | JIT_REG_CALL_USED | JIT_REG_IN_STACK}, \
	{"r15", 15, -1, JIT_REG_ALL | JIT_REG_CALL_USED | \
					JIT_REG_END_STACK | JIT_REG_IN_STACK},
#define	JIT_NUM_REGS		16
#define	JIT_NUM_GLOBAL_REGS	0

/*
 * Define to 1 if we should always load values into registers
 * before operating on them.  i.e. the CPU does not have reg-mem
 * and mem-reg addressing modes.
 */
#define	JIT_ALWAYS_REG_REG		1

/*
 * The maximum number of bytes to allocate for the prolog.
 * This may be shortened once we know the true prolog size.
 */
#define	JIT_PROLOG_SIZE			jit_function_interp_size

/*
 * Preferred alignment for the start of functions.
 */
#define	JIT_FUNCTION_ALIGNMENT	(sizeof(void *))

/*
 * Define this to 1 if the platform allows reads and writes on
 * any byte boundary.  Define to 0 if only properly-aligned
 * memory accesses are allowed.
 */
#define	JIT_ALIGN_OVERRIDES		0

/*
 * Extra state information that is added to the "jit_gencode" structure.
 */
#define	jit_extra_gen_state	\
			int working_area; \
			int max_working_area; \
			int extra_working_space
#define	jit_extra_gen_init(gen)	\
			do { \
				(gen)->working_area = 0; \
				(gen)->max_working_area = 0; \
				(gen)->extra_working_space = 0; \
			} while (0)
#define	jit_extra_gen_cleanup(gen)	do { ; } while (0)

#ifdef	__cplusplus
};
#endif

#endif	/* _JIT_RULES_INTERP_H */
