Files
scummvm-cursorfix/engines/glk/scott/unp64/scanners/byte_boiler.cpp
2026-02-02 04:50:13 +01:00

95 lines
2.6 KiB
C++

/* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/endian.h"
#include "glk/scott/types.h"
#include "glk/scott/unp64/unp64.h"
#include "glk/scott/unp64/exo_util.h"
namespace Glk {
namespace Scott {
void scnByteBoiler(UnpStr *unp) {
byte *mem;
int q, p;
if (unp->_idFlag)
return;
mem = unp->_mem;
if (unp->_depAdr == 0) {
if (u32eq(mem + 0x813, 0xE800F09D) &&
u32eq(mem + 0x818, 0x014E4CF7)) {
p = READ_LE_UINT16(&mem[0x811]);
if (u32eq(mem + p + 1, 0x02D0FAA5)) {
unp->_depAdr = 0x14e;
unp->_forced = 0x80b;
unp->_retAdr = READ_LE_UINT16(&mem[p + 0x5c]);
unp->_endAdr = READ_LE_UINT16(&mem[p + 0x0e]);
unp->_endAdr++;
unp->_fStrAf = 0xfe;
unp->_idFlag = 1;
return;
}
}
}
/* CPX hack */
if (unp->_depAdr == 0) {
if (u32eq(mem + 0x80b, 0xA97800A2) &&
u32eq(mem + 0x815, 0x4C01E6D0)) {
q = READ_LE_UINT16(&mem[0x819]);
if (u32eq(mem + q + 3, 0xE800F09D) &&
u32eq(mem + q + 8, 0x014E4CF7)) {
p = READ_LE_UINT16(&mem[q + 1]);
if (u32eq(mem + p + 1, 0x02D0FAA5)) {
unp->_depAdr = 0x14e;
unp->_forced = 0x80b;
unp->_retAdr = READ_LE_UINT16(&mem[p + 0x5c]);
unp->_endAdr = READ_LE_UINT16(&mem[p + 0x0e]);
unp->_endAdr++;
unp->_fStrAf = 0xfe;
unp->_idFlag = 1;
return;
}
}
}
}
/* SCS hack */
if (unp->_depAdr == 0) {
if (u32eq(mem + 0x813, 0xE800F09D) &&
u32eq(mem + 0x818, 0x01bf4CF7)) {
p = READ_LE_UINT16(&mem[0x811]);
if (u32eq(mem + p + 1, 0x02D0FAA5) &&
u32eq(mem + p + 0xdd, 0x014e4c01)) {
unp->_depAdr = 0x14e;
unp->_forced = 0x80b;
unp->_retAdr = READ_LE_UINT16(&mem[p + 0x5c]);
unp->_endAdr = READ_LE_UINT16(&mem[p + 0x0e]);
unp->_endAdr++;
unp->_fStrAf = 0xfe;
unp->_idFlag = 1;
return;
}
}
}
}
} // End of namespace Scott
} // End of namespace Glk