mirror of
https://github.com/libretro/scummvm.git
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9dd0cd51d5
so that invalid opcodes won't crash ScummVM anymore
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "agi/agi.h"
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#include "agi/opcodes.h"
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namespace Agi {
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#define ip (_game.logics[lognum].cIP)
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#define code (_game.logics[lognum].data)
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const char *logicNamesIf[] = {
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"OR", "NOT", "ELSE", "IF"
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};
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void AgiEngine::debugConsole(int lognum, int mode, const char *str) {
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AgiOpCodeEntry *curOpCodeTable;
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uint8 parametersLeft, z;
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uint8 logicNameIdx;
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const char *c;
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if (str) {
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debug(0, " %s", str);
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return;
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}
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debugN(0, "%03d:%04x ", lognum, ip);
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switch (*(code + ip)) {
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case 0xFC:
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case 0xFD:
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case 0xFE:
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case 0xFF:
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if (_debug.opcodes) {
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debugN(0, "%02X %02X %02X %02X %02X %02X %02X %02X %02X\n"
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" ",
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(uint8) * (code + (0 + ip)) & 0xFF,
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(uint8) * (code + (1 + ip)) & 0xFF,
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(uint8) * (code + (2 + ip)) & 0xFF,
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(uint8) * (code + (3 + ip)) & 0xFF,
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(uint8) * (code + (4 + ip)) & 0xFF,
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(uint8) * (code + (5 + ip)) & 0xFF,
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(uint8) * (code + (6 + ip)) & 0xFF,
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(uint8) * (code + (7 + ip)) & 0xFF,
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(uint8) * (code + (8 + ip)) & 0xFF);
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}
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logicNameIdx = (*(code + ip)) - 0xFC;
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debugN(0, "%s ", logicNamesIf[logicNameIdx]);
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break;
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default:
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curOpCodeTable = mode == lCOMMAND_MODE ? _opCodes : _opCodesCond;
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parametersLeft = curOpCodeTable[*(code + ip)].parameterSize;
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c = curOpCodeTable[*(code + ip)].parameters;
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if (_debug.opcodes) {
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debugN(0, "%02X %02X %02X %02X %02X %02X %02X %02X %02X\n"
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" ",
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(uint8) * (code + (0 + ip)) & 0xFF,
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(uint8) * (code + (1 + ip)) & 0xFF,
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(uint8) * (code + (2 + ip)) & 0xFF,
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(uint8) * (code + (3 + ip)) & 0xFF,
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(uint8) * (code + (4 + ip)) & 0xFF,
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(uint8) * (code + (5 + ip)) & 0xFF,
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(uint8) * (code + (6 + ip)) & 0xFF,
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(uint8) * (code + (7 + ip)) & 0xFF,
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(uint8) * (code + (8 + ip)) & 0xFF);
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}
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debugN(0, "%s ", (curOpCodeTable + * (code + ip))->name);
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for (z = 1; parametersLeft > 0;) {
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if (*c == 'n') {
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debugN(0, "%d", *(code + (ip + z)));
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} else {
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debugN(0, "v%d[%d]", *(code + (ip + z)), getVar(*(code + (ip + z))));
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}
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c++;
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z++;
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if (--parametersLeft > 0)
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debugN(0, ",");
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}
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break;
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}
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debugN(0, "\n");
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}
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} // End of namespace Agi
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