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https://github.com/RetroDECK/Supermodel.git
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Fix corrupted memory in network mode
This commit is contained in:
Ian Curtis
parent
597ea93749
commit
1a3407bec8
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@ -2865,30 +2865,6 @@ void CModel3::Reset(void)
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Initialization, Shutdown, and ROM Management
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******************************************************************************/
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// Offsets of memory regions within Model 3's pool
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#define OFFSET_RAM 0 // 8 MB
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#define OFFSET_CROM 0x800000 // 8 MB (fixed CROM)
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#define OFFSET_CROMxx 0x1000000 // 128 MB (banked CROM0-3 must follow fixed CROM)
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#define OFFSET_VROM 0x9000000 // 64 MB
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#define OFFSET_BACKUPRAM 0xD000000 // 128 KB
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#define OFFSET_SECURITYRAM 0xD020000 // 128 KB
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#define OFFSET_SOUNDROM 0xD040000 // 512 KB (68K sound board program)
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#define OFFSET_SAMPLEROM 0xD0C0000 // 16 MB (sound board samples)
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#define OFFSET_DSBPROGROM 0xE0C0000 // 128 KB (DSB program)
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#define OFFSET_DSBMPEGROM 0xE0E0000 // 16 MB (DSB MPEG data -- Z80 version only uses 8MB)
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#define OFFSET_DRIVEROM 0xF0E0000 // 64 KB
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#ifndef NET_BOARD
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#define MEMORY_POOL_SIZE (0x800000 + 0x800000 + 0x8000000 + 0x4000000 + 0x20000 + 0x20000 + 0x80000 + 0x1000000 + 0x20000 + 0x1000000 + 0x10000)
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#endif
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#ifdef NET_BOARD
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#define OFFSET_NETBUFFER 0xC000000 // not really 128kb (64kb buffer 0000-ffff + i/o 10000-101ff)
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#define OFFSET_NETRAM 0xC020000 // 128 KB (c0020000-c003ffff)
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#define MEMORY_POOL_SIZE (0x800000 + 0x800000 + 0x8000000 + 0x4000000 + 0x20000 + 0x20000 + 0x80000 + 0x1000000 + 0x20000 + 0x1000000 + 0x10000 + 0x40000)
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//8MB 8MB 128MB 64MB 128KB 128KB 512KB 16MB 128KB 16MB 64KB 256KB
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#endif
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// 64-bit magic number used to detect loading of optional ROMs
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#define MAGIC_NUMBER 0x4C444D5245505553ULL
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const Game &CModel3::GetGame() const
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{
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return m_game;
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@ -3097,32 +3073,67 @@ void CModel3::AttachOutputs(COutputs *OutputsPtr)
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DebugLog("Model 3 attached outputs\n");
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}
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const static int RAM_SIZE = 0x800000; //8MB
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const static int CROM_SIZE = 0x800000; //8MB
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const static int CROMxx_SIZE = 0x8000000; //128MB
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const static int VROM_SIZE = 0x4000000; //64MB
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const static int BACKUPRAM_SIZE = 0x20000; //128KB
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const static int SECURITYRAM_SIZE = 0x20000; //128KB
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const static int SOUNDROM_SIZE = 0x80000; //512KB
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const static int SAMPLEROM_SIZE = 0x1000000; //16MB
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const static int DSBPROGROM_SIZE = 0x20000; //128KB
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const static int DSBMPEGROM_SIZE = 0x1000000; //16MB
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const static int DRIVEROM_SIZE = 0x10000; //64KB
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const static int NETBUFFER_SIZE = 0x20000; //128KB
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const static int NETRAM_SIZE = 0x20000; //128KB
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const static int MEM_POOL_SIZE = RAM_SIZE + CROM_SIZE +
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CROMxx_SIZE + VROM_SIZE +
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BACKUPRAM_SIZE + SECURITYRAM_SIZE +
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SOUNDROM_SIZE + SAMPLEROM_SIZE +
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DSBPROGROM_SIZE + DSBMPEGROM_SIZE +
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DRIVEROM_SIZE + NETBUFFER_SIZE +
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NETRAM_SIZE;
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const static int RAM_OFFSET = 0;
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const static int CROM_OFFSET = RAM_OFFSET + RAM_SIZE;
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const static int CROMxx_OFFSET = CROM_OFFSET + CROM_SIZE;
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const static int VROM_OFFSET = CROMxx_OFFSET + CROMxx_SIZE;
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const static int BACKUPRAM_OFFSET = VROM_OFFSET + VROM_SIZE;
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const static int SECURITYRAM_OFFSET = BACKUPRAM_OFFSET + BACKUPRAM_SIZE;
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const static int SOUNDROM_OFFSET = SECURITYRAM_OFFSET + SECURITYRAM_SIZE;
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const static int SAMPLEROM_OFFSET = SOUNDROM_OFFSET + SOUNDROM_SIZE;
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const static int DSBPROGROM_OFFSET = SAMPLEROM_OFFSET + SAMPLEROM_SIZE;
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const static int DSBMPEGROM_OFFSET = DSBPROGROM_OFFSET + DSBPROGROM_SIZE;
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const static int DRIVEROM_OFFSET = DSBMPEGROM_OFFSET + DSBMPEGROM_SIZE;
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const static int NETBUFFER_OFFSET = DRIVEROM_OFFSET + DRIVEROM_SIZE;
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const static int NETRAM_OFFSET = NETBUFFER_OFFSET + NETBUFFER_SIZE;
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// Model 3 initialization. Some initialization is deferred until ROMs are loaded in LoadROMSet()
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bool CModel3::Init(void)
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{
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float memSizeMB = (float)MEMORY_POOL_SIZE/(float)0x100000;
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{
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float memSizeMB = (float)MEM_POOL_SIZE / (float)0x100000;
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// Allocate all memory for ROMs and PPC RAM
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memoryPool = new(std::nothrow) UINT8[MEMORY_POOL_SIZE];
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memoryPool = new(std::nothrow) UINT8[MEM_POOL_SIZE];
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if (NULL == memoryPool)
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return ErrorLog("Insufficient memory for Model 3 object (needs %1.1f MB).", memSizeMB);
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memset(memoryPool, 0, MEMORY_POOL_SIZE);
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memset(memoryPool, 0, MEM_POOL_SIZE);
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// Set up pointers
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ram = &memoryPool[OFFSET_RAM];
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crom = &memoryPool[OFFSET_CROM];
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vrom = &memoryPool[OFFSET_VROM];
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soundROM = &memoryPool[OFFSET_SOUNDROM];
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sampleROM = &memoryPool[OFFSET_SAMPLEROM];
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dsbROM = &memoryPool[OFFSET_DSBPROGROM];
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mpegROM = &memoryPool[OFFSET_DSBMPEGROM];
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backupRAM = &memoryPool[OFFSET_BACKUPRAM];
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securityRAM = &memoryPool[OFFSET_SECURITYRAM];
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driveROM = &memoryPool[OFFSET_DRIVEROM];
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#ifdef NET_BOARD
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netRAM = &memoryPool[OFFSET_NETRAM];
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netBuffer = &memoryPool[OFFSET_NETBUFFER];
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#endif
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ram = &memoryPool[RAM_OFFSET];
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crom = &memoryPool[CROM_OFFSET];
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vrom = &memoryPool[VROM_OFFSET];
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soundROM = &memoryPool[SOUNDROM_OFFSET];
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sampleROM = &memoryPool[SAMPLEROM_OFFSET];
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dsbROM = &memoryPool[DSBPROGROM_OFFSET];
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mpegROM = &memoryPool[DSBMPEGROM_OFFSET];
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backupRAM = &memoryPool[BACKUPRAM_OFFSET];
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securityRAM = &memoryPool[SECURITYRAM_OFFSET];
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driveROM = &memoryPool[DRIVEROM_OFFSET];
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netRAM = &memoryPool[NETRAM_OFFSET];
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netBuffer = &memoryPool[NETBUFFER_OFFSET];
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SetCROMBank(0xFF);
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// Initialize other devices (PowerPC, DSB, and security board initialized after ROMs loaded)
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@ -3202,10 +3213,8 @@ CModel3::CModel3(const Util::Config::Node &config)
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cromBank = NULL;
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backupRAM = NULL;
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securityRAM = NULL;
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#ifdef NET_BOARD
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netRAM = NULL;
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netBuffer = NULL;
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#endif
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netBuffer = NULL;
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DSB = NULL;
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@ -3294,10 +3303,8 @@ CModel3::~CModel3(void)
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cromBank = NULL;
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backupRAM = NULL;
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securityRAM = NULL;
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#ifdef NET_BOARD
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netRAM = NULL;
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netBuffer = NULL;
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#endif
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netBuffer = NULL;
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DebugLog("Destroyed Model 3\n");
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}
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@ -247,11 +247,8 @@ private:
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UINT8 *backupRAM; // 128 KB Backup RAM (battery backed)
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UINT8 *securityRAM; // 128 KB Security Board RAM
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UINT8 *driveROM; // 32 KB drive board ROM (Z80 program) (optional)
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#ifdef NET_BOARD
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UINT8 *netRAM; // 128KB RAM
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UINT8 *netBuffer; // 128KB buffer
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UINT8 *commRAM; // 64 kB or more ??
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#endif
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// Banked CROM
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UINT8 *cromBank; // currently mapped in CROM bank
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