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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#ifndef _FREESCI_KERNEL_TYPES_H_
#define _FREESCI_KERNEL_TYPES_H_
#include "sci/include/vm_types.h"
#define KSIG_TERMINATOR 0
/* Uncompiled signatures */
#define KSIG_SPEC_ARITMETIC 'i'
#define KSIG_SPEC_LIST 'l'
#define KSIG_SPEC_NODE 'n'
#define KSIG_SPEC_OBJECT 'o'
#define KSIG_SPEC_REF 'r' /* Said Specs and strings */
#define KSIG_SPEC_ARITHMETIC 'i'
#define KSIG_SPEC_NULL 'z'
#define KSIG_SPEC_ANY '.'
#define KSIG_SPEC_ALLOW_INV '!' /* Allow invalid pointers */
#define KSIG_SPEC_ELLIPSIS '*' /* Arbitrarily more TYPED arguments */
#define KSIG_SPEC_SUM_DONE ('a' - 'A') /* Use small letters to indicate end of sum type */
/* Use capital letters for sum types, e.g.
** "LNoLr" for a function which takes two arguments:
** (1) list, node or object
** (2) list or ref
*/
/* Compiled signatures */
#define KSIG_LIST 0x01
#define KSIG_NODE 0x02
#define KSIG_OBJECT 0x04
#define KSIG_REF 0x08
#define KSIG_ARITHMETIC 0x10
#define KSIG_NULL 0x40
#define KSIG_ANY 0x5f
#define KSIG_ELLIPSIS 0x80
#define KSIG_ALLOW_INV 0x20
#define KSIG_INVALID KSIG_ALLOW_INV
int
kernel_matches_signature(state_t *s, const char *sig, int argc, reg_t *argv);
/* Determines whether a list of registers matches a given signature
** Parameters: (state_t *) s: The state to operate on
** (char *) sig: The signature to test against
** (int) argc: Number of arguments to test
** (reg_t *) argv: Argument list
** Returns : (int) 0 iff the signature was not matched
*/
int
determine_reg_type(state_t *s, reg_t reg, int allow_invalid);
/* Determines the type of the object indicated by reg
** Parameters: (state_t *) s: The state to operate on
** (reg_t) reg: The register to check
** (int) allow_invalid: Allow invalid pointer values
** Returns : one of KSIG_* below KSIG_NULL.
** KSIG_INVALID set if the type of reg can be determined, but is invalid.
** 0 on error.
*/
const char *
kernel_argtype_description(int type);
/* Returns a textual description of the type of an object
** Parameters: (int) type: The type value to describe
** Returns: (const char *) Pointer to a (static) descriptive string
*/
#endif /* ! _FREESCI_KERNEL_TYPES_H_ */
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