diff options
Diffstat (limited to 'jindroush/lib/adsk.cpp')
| -rw-r--r-- | jindroush/lib/adsk.cpp | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/jindroush/lib/adsk.cpp b/jindroush/lib/adsk.cpp new file mode 100644 index 0000000..e5d0b5a --- /dev/null +++ b/jindroush/lib/adsk.cpp @@ -0,0 +1,319 @@ +// 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 +// 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., 675 Mass Ave, Cambridge, MA 02139, USA. +// + +#include "adsk.h" + +ADisk::ADisk() : CDisk() +{ + #ifdef _MEMORY_DUMP_ + printf( "ADisk constructed: %p\n", this ); + #endif +} + +ADisk::~ADisk() +{ + #ifdef _MEMORY_DUMP_ + printf( "ADisk destructed: %p\n", this ); + #endif +} + +void GuessClassicSizes( int iSectors, int iSectorSize, DISK_GEOMETRY* pGeometry ) +{ + pGeometry->iSides = 1; + pGeometry->iBytesPerSector = iSectorSize; + + pGeometry->iTracks = 1; + pGeometry->iSectorsPerTrack = iSectors; + + switch( iSectors ) + { + case 720: + switch( iSectorSize ) + { + case 0x80: + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 18; + break; + + case 0x100: + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 18; + break; + } + break; + + case 1040: + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 26; + break; + + } + +} + +void ForceClassicSize( DISK_GEOMETRY* pGeometry ) +{ + ForceClassicSize( pGeometry->iSectors, pGeometry->iBytesPerSector, pGeometry ); +} + +void ForceClassicSize( int iSectors, int iSectorSize, DISK_GEOMETRY* pGeometry ) +{ + pGeometry->iSides = 1; + pGeometry->iBytesPerSector = iSectorSize; + + pGeometry->iTracks = 1; + pGeometry->iSectorsPerTrack = iSectors; + + switch( iSectorSize ) + { + case 0x80: + if ( iSectors <= 720 ) + { + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 18; + } + else if ( ( iSectors > 720 ) && ( iSectors <= 1040 ) ) + { + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 26; + } + else + { + GuessClassicSizes( iSectors, iSectorSize, pGeometry ); + } + break; + + case 0x100: + default: + if ( iSectors <= 720 ) + { + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 18; + } + else + { + GuessClassicSizes( iSectors, iSectorSize, pGeometry ); + } + break; + } + + switch( iSectors ) + { + case 720: + switch( iSectorSize ) + { + case 0x80: + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 18; + break; + + case 0x100: + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 18; + break; + } + break; + + case 1040: + pGeometry->iTracks = 40; + pGeometry->iSectorsPerTrack = 26; + break; + + } + +} + + +//returns ptr to disk type name +char* GetDiskTypeName( DISK_TYPE disktype ) +{ + switch( disktype ) + { + case DISK_XFD: + return "XFD"; + + case DISK_ATR: + return "ATR"; + + case DISK_XFDb: + return "XFDb"; + + case DISK_ATRb: + return "ATRb"; + + case DISK_DCM: + return "DCM"; + + case DISK_SCP: + return "SCP"; + + case DISK_DI: + return "DI"; + + default: + return "None"; + } +} + +//returns ptr to disk type extension +char* GetDiskTypeExt( DISK_TYPE disktype ) +{ + switch( disktype ) + { + case DISK_XFD: + case DISK_XFDb: + return "xfd"; + + case DISK_ATR: + case DISK_ATRb: + return "atr"; + + case DISK_DCM: + return "dcm"; + + case DISK_SCP: + return "scp"; + + case DISK_DI: + return "di"; + + default: + return "xxx"; + } +} + +#ifndef __CDISK_NOLOAD__ +DISKINIT_RETCODE InitializeDisk( ADisk** ppDisk, DISK_TYPE disktype, char* szFname, BOOL bVerbose, BOOL bRepair, BOOL bRepairAuto ) +{ + switch( disktype ) + { + case DISK_ATR: + *ppDisk = new CAtr(); + break; + + case DISK_SCP: + *ppDisk = new CScp(); + break; + + case DISK_DCM: + *ppDisk = new CDcm(); + break; + + case DISK_XFD: + *ppDisk = new CXfd(); + break; + + case DISK_DI: + *ppDisk = new CDi(); + break; + + default: + if ( bVerbose ) + fprintf( stderr, "Invalid disk type specified!\n" ); + return DI_RET_CANT_CONTINUE; + } + + if ( !*ppDisk ) + { + if ( bVerbose ) + fprintf( stderr, "Can't initialize disk driver!\n" ); + return DI_RET_CONTINUE; + } + + if ( !(*ppDisk)->Load( szFname, bRepair, bRepairAuto ) ) + { + int iError = (*ppDisk)->GetErrorCode(); + + DISKINIT_RETCODE ret = DI_RET_CONTINUE; + + switch( iError ) + { + case CATR_FORMAT_VIOLATED: + case CXFD_FORMAT_VIOLATED: + case CDISK_ERROR_CANT_OPEN: + case CDCM_FORMAT_VIOLATED: + case CSCP_FORMAT_VIOLATED: + case CDI_FORMAT_VIOLATED: + ret = DI_RET_CANT_CONTINUE; + break; + } + + if ( bVerbose || ( ret == DI_RET_CANT_CONTINUE ) ) + { + printf( "Input file '%s' ", szFname ); + printf( "(%s)\n", GetDiskTypeName( disktype ) ); + printf( "Load failed because:\n%s\n", (*ppDisk)->GetLastError() ); + } + if ( ret != DI_RET_OK ) + { + delete *ppDisk; + return ret; + } + } + + return DI_RET_OK; +} +#endif + +BOOL ADisk::ReadSectors( void* pBuf, int iStartSec, int iSecs ) +{ + while( iSecs ) + { + if ( !ReadSector( pBuf, iStartSec ) ) + return FALSE; + + pBuf = (BYTE*)pBuf + ( ( iStartSec <= 3 ) ? 0x80 :m_geometry.iBytesPerSector ); + iStartSec++; + iSecs--; + } + + return TRUE; +} + +BOOL ADisk::WriteSectors( int iStartSec, void* pBuf, int iSecs ) +{ + while( iSecs ) + { + if ( !WriteSector( iStartSec, pBuf ) ) + return FALSE; + + pBuf = (BYTE*)pBuf + ( ( iStartSec <= 3 ) ? 0x80 :m_geometry.iBytesPerSector ); + iStartSec++; + iSecs--; + } + + return TRUE; +} + +int ADisk::GetBootSectorCount() +{ + return m_pbtMemory[ 1 ]; +} + +int ADisk::GetBootSectorSize() +{ + int iSecCount = GetBootSectorCount(); + + if ( iSecCount > 3 ) + return ( ( iSecCount - 3 ) * GetSectorSize() + 0x180 ); + else + return iSecCount * 0x80; +} + +BOOL ADisk::GetBootSector( BYTE* pbtData ) +{ + return ReadSectors( pbtData, 1, GetBootSectorCount() ); +} + |