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-/* Copyright (C) 1994-1998 Revolution Software Ltd.
- * Copyright (C) 2003-2006 The ScummVM project
- *
- * 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 _INTERPRETER
-#define _INTERPRETER
-
-namespace Sword2 {
-
-// Interpreter return codes
-
-enum {
- IR_STOP = 0, // Quit for a cycle
- IR_CONT = 1, // Continue as normal
- IR_TERMINATE = 2, // Return without updating the offset
- IR_REPEAT = 3, // Return; offset at start of function call
- IR_GOSUB = 4 // Return with updated offset
-};
-
-// Get parameter fix so that the playstation version can handle words not on
-// word boundaries
-
-#define Read8ip(var) { var = code[ip]; ip++; }
-#define Read16ip(var) { var = (int16)READ_LE_UINT16(code + ip); ip += 2; }
-#define Read32ip(var) { var = (int32)READ_LE_UINT32(code + ip); ip += 4; }
-#define Read32ipLeaveip(var) { var = (int32)READ_LE_UINT32(code + ip); }
-
-enum {
- // Compiled tokens
-
- CP_END_SCRIPT = 0,
- CP_PUSH_LOCAL_VAR32 = 1, // Push a local variable on to the stack
- CP_PUSH_GLOBAL_VAR32 = 2, // Push a global variable
- CP_POP_LOCAL_VAR32 = 3, // Pop a local variable from the stack
- CP_CALL_MCODE = 4, // Call a machine code function
- CP_PUSH_LOCAL_ADDR = 5, // Push the address of a local variable
- CP_PUSH_INT32 = 6, // Adjust the stack after calling an fn function
- CP_SKIPONFALSE = 7, // Skip if the bottom value on the stack is false
- CP_SKIPALWAYS = 8, // Skip a block of code
- CP_SWITCH = 9, // Switch on last stack value
- CP_ADDNPOP_LOCAL_VAR32 = 10, // Add to a local varible
- CP_SUBNPOP_LOCAL_VAR32 = 11, // Subtract from a local variable
- CP_SKIPONTRUE = 12, // Skip if the bottom value on the stack is true
- CP_POP_GLOBAL_VAR32 = 13, // Pop a global variable
- CP_ADDNPOP_GLOBAL_VAR32 = 14, // Add to a global variable
- CP_SUBNPOP_GLOBAL_VAR32 = 15, // Subtract from a global variable
- CP_DEBUGON = 16, // Turn debugging on
- CP_DEBUGOFF = 17, // Turn debugging off
- CP_QUIT = 18, // Quit for a cycle
- CP_TERMINATE = 19, // Quit script completely
-
- // Operators
-
- OP_ISEQUAL = 20, // '=='
- OP_PLUS = 21, // '+'
- OP_MINUS = 22, // '-'
- OP_TIMES = 23, // '*'
- OP_DIVIDE = 24, // '/'
- OP_NOTEQUAL = 25, // '=='
- OP_ANDAND = 26, // '&&'
- OP_GTTHAN = 27, // '>'
- OP_LSTHAN = 28, // '<'
-
- // More tokens, mixed types
-
- CP_JUMP_ON_RETURNED = 29, // Use table of jumps with value returned from fn_mcode
- CP_TEMP_TEXT_PROCESS = 30, // A dummy text process command for me
- CP_SAVE_MCODE_START = 31, // Save the mcode code start for restarting when necessary
- CP_RESTART_SCRIPT = 32, // Start the script from the beginning
- CP_PUSH_STRING = 33, // Push a pointer to a string on the stack
- CP_PUSH_DEREFERENCED_STRUCTURE = 34, // Push the address of a structure thing
- OP_GTTHANE = 35, // >=
- OP_LSTHANE = 36, // <=
- OP_OROR = 37 // || or OR
-};
-
-} // End of namespace Sword2
-
-#endif