mirror of
https://github.com/libretro/scummvm.git
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76 lines
3.2 KiB
C++
76 lines
3.2 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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* 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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* 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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/*
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* This code is based on original Soltys source code
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* Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
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*/
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#ifndef __BOOT__
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#define __BOOT__
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#include "cge/jbw.h"
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namespace CGE {
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#define BOOTSECT_SIZ 512
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#define BOOTHEAD_SIZ 62
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#define BOOTCODE_SIZ BOOTSECT_SIZ-BOOTHEAD_SIZ
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#define FreeBoot(b) free(b)
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struct Boot {
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uint8 _jmp[3]; // NEAR jump machine code
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char _idOEM[8]; // OEM name and version
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uint16 _sectSize; // bytes per sector
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uint8 _clustSize; // sectors per cluster
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uint16 _resSecs; // sectors before 1st FAT
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uint8 _fatCnt; // number of FATs
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uint16 _rootSize; // root directory entries
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uint16 _totSecs; // total sectors on disk
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uint8 _media; // media descriptor byte
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uint16 _fatSize; // sectors per FAT
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uint16 _trkSecs; // sectors per track
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uint16 _headCnt; // number of sufraces
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uint16 _hidnSecs; // special hidden sectors
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uint16 __; // (unknown: reserved?)
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uint32 _lTotSecs; // total number of sectors
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uint16 _driveNum; // physical drive number
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uint8 _xSign; // extended boot signature
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uint32 _serial; // volume serial number
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char _label[11]; // volume label
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char _fileSysID[8]; // file system ID
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char _code[BOOTCODE_SIZ - 8]; // 8 = length of following
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uint32 _secret; // long secret number
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uint8 _bootCheck; // boot sector checksum
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uint8 _bootFlags; // secret flags
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uint16 _bootSig; // boot signature 0xAA55
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};
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Boot *readBoot(int drive);
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uint8 checkBoot(Boot *boot);
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bool writeBoot(int drive, Boot *boot);
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} // End of namespace CGE
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#endif
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