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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 _SCI_VM_TYPES_H_
#define _SCI_VM_TYPES_H_
#include "sci/include/scitypes.h"
#define SCI_REG_SIZE 16;
#define SCI_SEG_SIZE 16;
typedef int seg_id_t; /* Segment ID type */
struct _state; /* engine.h */
typedef struct {
guint16 segment;
guint16 offset;
} reg_t;
#define PREG "%04x:%04x"
#define PRINT_REG(r) (0xffff) & (unsigned) (r).segment, (unsigned) (r).offset
typedef reg_t *stack_ptr_t; /* Stack pointer type */
typedef int selector_t; /* Selector ID */
#define NULL_SELECTOR -1
#define PSTK "ST:%04x"
#define PRINT_STK(v) (unsigned) (v - s->stack_base)
static inline reg_t
make_reg(int segment, int offset) {
reg_t r;
r.offset = offset;
r.segment = segment;
return r;
}
#define IS_NULL_REG(r) (!((r).offset || (r).segment))
#define REG_EQ(a, b) (((a).offset == (b).offset) && ((a).segment == (b).segment))
#define NULL_REG_INITIALIZER {0, 0}
extern reg_t NULL_REG;
#endif /* !_SCI_VM_TYPES_H_ */
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