summaryrefslogtreecommitdiffstats
path: root/gearboy/src/Memory.h
diff options
context:
space:
mode:
Diffstat (limited to 'gearboy/src/Memory.h')
-rw-r--r--gearboy/src/Memory.h190
1 files changed, 190 insertions, 0 deletions
diff --git a/gearboy/src/Memory.h b/gearboy/src/Memory.h
new file mode 100644
index 00000000..2bfbc4fb
--- /dev/null
+++ b/gearboy/src/Memory.h
@@ -0,0 +1,190 @@
+/*
+ * Gearboy - Nintendo Game Boy Emulator
+ * Copyright (C) 2012 Ignacio Sanchez
+
+ * 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
+ * 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/
+ *
+ */
+
+#ifndef MEMORY_H
+#define MEMORY_H
+
+#include "definitions.h"
+#include "MemoryRule.h"
+#include <vector>
+
+class Processor;
+class Video;
+class CommonMemoryRule;
+class IORegistersMemoryRule;
+
+class Memory
+{
+public:
+ struct stDisassembleRecord
+ {
+ u16 address;
+ char name[32];
+ char bytes[16];
+ int size;
+ int bank;
+ u8 opcodes[4];
+ bool jump;
+ u16 jump_address;
+ };
+
+ struct stMemoryBreakpoint
+ {
+ u16 address1;
+ u16 address2;
+ bool read;
+ bool write;
+ bool range;
+ };
+
+public:
+ Memory();
+ ~Memory();
+ void SetProcessor(Processor* pProcessor);
+ void SetVideo(Video* pVideo);
+ void Init();
+ void Reset(bool bCGB);
+ void SetCurrentRule(MemoryRule* pRule);
+ void SetCommonRule(CommonMemoryRule* pRule);
+ void SetIORule(IORegistersMemoryRule* pRule);
+ MemoryRule* GetCurrentRule();
+ u8* GetMemoryMap();
+ u8 Read(u16 address);
+ void Write(u16 address, u8 value);
+ u8 ReadCGBWRAM(u16 address);
+ void WriteCGBWRAM(u16 address, u8 value);
+ void SwitchCGBWRAM(u8 value);
+ u8 ReadCGBLCDRAM(u16 address, bool forceBank1);
+ void WriteCGBLCDRAM(u16 address, u8 value);
+ void SwitchCGBLCDRAM(u8 value);
+ u8 Retrieve(u16 address);
+ void Load(u16 address, u8 value);
+ stDisassembleRecord** GetDisassembledMemoryMap();
+ stDisassembleRecord** GetDisassembledROMMemoryMap();
+ void LoadBank0and1FromROM(u8* pTheROM);
+ void MemoryDump(const char* szFilePath);
+ void PerformDMA(u8 value);
+ void SwitchCGBDMA(u8 value);
+ unsigned int PerformHDMA();
+ void PerformGDMA(u8 value);
+ bool IsHDMAEnabled() const;
+ void SetHDMARegister(int reg, u8 value);
+ u8 GetHDMARegister(int reg) const;
+ u8* GetCGBRAM();
+ int GetCurrentCGBRAMBank();
+ int GetCurrentLCDRAMBank();
+ void SaveState(std::ostream& stream);
+ void LoadState(std::istream& stream);
+ u8* GetROM0();
+ u8* GetROM1();
+ u8* GetVRAM();
+ u8* GetRAM();
+ u8* GetWRAM0();
+ u8* GetWRAM1();
+ std::vector<stDisassembleRecord*>* GetBreakpointsCPU();
+ std::vector<stMemoryBreakpoint>* GetBreakpointsMem();
+ stDisassembleRecord* GetRunToBreakpoint();
+ void SetRunToBreakpoint(stDisassembleRecord* pBreakpoint);
+ void EnableBootromDMG(bool enable);
+ void EnableBootromGBC(bool enable);
+ void LoadBootromDMG(const char* szFilePath);
+ void LoadBootromGBC(const char* szFilePath);
+ bool IsBootromEnabled();
+ void DisableBootromRegistry();
+ bool IsBootromRegistryEnabled();
+ void ResetDisassembledMemory();
+ void ResetBootromDisassembledMemory();
+
+private:
+ void LoadBootroom(const char* szFilePath, bool gbc);
+ void CheckBreakpoints(u16 address, bool write);
+
+private:
+ Processor* m_pProcessor;
+ Video* m_pVideo;
+ CommonMemoryRule* m_pCommonMemoryRule;
+ IORegistersMemoryRule* m_pIORegistersMemoryRule;
+ MemoryRule* m_pCurrentMemoryRule;
+ u8* m_pMap;
+ stDisassembleRecord** m_pDisassembledMap;
+ stDisassembleRecord** m_pDisassembledROMMap;
+ std::vector<stDisassembleRecord*> m_BreakpointsCPU;
+ std::vector<stMemoryBreakpoint> m_BreakpointsMem;
+ stDisassembleRecord* m_pRunToBreakpoint;
+ bool m_bCGB;
+ int m_iCurrentWRAMBank;
+ int m_iCurrentLCDRAMBank;
+ u8* m_pWRAMBanks;
+ u8* m_pLCDRAMBank1;
+ bool m_bHDMAEnabled;
+ int m_iHDMABytes;
+ u8 m_HDMA[5];
+ u16 m_HDMASource;
+ u16 m_HDMADestination;
+ bool m_bBootromDMGEnabled;
+ bool m_bBootromGBCEnabled;
+ bool m_bBootromDMGLoaded;
+ bool m_bBootromGBCLoaded;
+ u8* m_pBootromDMG;
+ u8* m_pBootromGBC;
+ bool m_bBootromRegistryDisabled;
+};
+
+#include "Memory_inline.h"
+
+// From Gambatte emulator
+const u8 kInitialValuesForFFXX[256] = {
+ 0xCF, 0x00, 0x7E, 0xFF, 0xD3, 0x00, 0x00, 0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE1,
+ 0x80, 0xBF, 0xF3, 0xFF, 0xBF, 0xFF, 0x3F, 0x00, 0xFF, 0xBF, 0x7F, 0xFF, 0x9F, 0xFF, 0xBF, 0xFF,
+ 0xFF, 0x00, 0x00, 0xBF, 0x77, 0xF3, 0xF1, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0x71, 0x72, 0xD5, 0x91, 0x58, 0xBB, 0x2A, 0xFA, 0xCF, 0x3C, 0x54, 0x75, 0x48, 0xCF, 0x8F, 0xD9,
+ 0x91, 0x80, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFC, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0x2B, 0x0B, 0x64, 0x2F, 0xAF, 0x15, 0x60, 0x6D, 0x61, 0x4E, 0xAC, 0x45, 0x0F, 0xDA, 0x92, 0xF3,
+ 0x83, 0x38, 0xE4, 0x4E, 0xA7, 0x6C, 0x38, 0x58, 0xBE, 0xEA, 0xE5, 0x81, 0xB4, 0xCB, 0xBF, 0x7B,
+ 0x59, 0xAD, 0x50, 0x13, 0x5E, 0xF6, 0xB3, 0xC1, 0xDC, 0xDF, 0x9E, 0x68, 0xD7, 0x59, 0x26, 0xF3,
+ 0x62, 0x54, 0xF8, 0x36, 0xB7, 0x78, 0x6A, 0x22, 0xA7, 0xDD, 0x88, 0x15, 0xCA, 0x96, 0x39, 0xD3,
+ 0xE6, 0x55, 0x6E, 0xEA, 0x90, 0x76, 0xB8, 0xFF, 0x50, 0xCD, 0xB5, 0x1B, 0x1F, 0xA5, 0x4D, 0x2E,
+ 0xB4, 0x09, 0x47, 0x8A, 0xC4, 0x5A, 0x8C, 0x4E, 0xE7, 0x29, 0x50, 0x88, 0xA8, 0x66, 0x85, 0x4B,
+ 0xAA, 0x38, 0xE7, 0x6B, 0x45, 0x3E, 0x30, 0x37, 0xBA, 0xC5, 0x31, 0xF2, 0x71, 0xB4, 0xCF, 0x29,
+ 0xBC, 0x7F, 0x7E, 0xD0, 0xC7, 0xC3, 0xBD, 0xCF, 0x59, 0xEA, 0x39, 0x01, 0x2E, 0x00, 0x69, 0x00
+};
+
+const u8 kInitialValuesForColorFFXX[256] = {
+ 0xCF, 0x00, 0x7C, 0xFF, 0x44, 0x00, 0x00, 0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE1,
+ 0x80, 0xBF, 0xF3, 0xFF, 0xBF, 0xFF, 0x3F, 0x00, 0xFF, 0xBF, 0x7F, 0xFF, 0x9F, 0xFF, 0xBF, 0xFF,
+ 0xFF, 0x00, 0x00, 0xBF, 0x77, 0xF3, 0xF1, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF,
+ 0x91, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x7E, 0xFF, 0xFE,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x3E, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0xFF, 0xC1, 0x00, 0xFE, 0xFF, 0xFF, 0xFF,
+ 0xF8, 0xFF, 0x00, 0x00, 0x00, 0x8F, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xCE, 0xED, 0x66, 0x66, 0xCC, 0x0D, 0x00, 0x0B, 0x03, 0x73, 0x00, 0x83, 0x00, 0x0C, 0x00, 0x0D,
+ 0x00, 0x08, 0x11, 0x1F, 0x88, 0x89, 0x00, 0x0E, 0xDC, 0xCC, 0x6E, 0xE6, 0xDD, 0xDD, 0xD9, 0x99,
+ 0xBB, 0xBB, 0x67, 0x63, 0x6E, 0x0E, 0xEC, 0xCC, 0xDD, 0xDC, 0x99, 0x9F, 0xBB, 0xB9, 0x33, 0x3E,
+ 0x45, 0xEC, 0x42, 0xFA, 0x08, 0xB7, 0x07, 0x5D, 0x01, 0xF5, 0xC0, 0xFF, 0x08, 0xFC, 0x00, 0xE5,
+ 0x0B, 0xF8, 0xC2, 0xCA, 0xF4, 0xF9, 0x0D, 0x7F, 0x44, 0x6D, 0x19, 0xFE, 0x46, 0x97, 0x33, 0x5E,
+ 0x08, 0xFF, 0xD1, 0xFF, 0xC6, 0x8B, 0x24, 0x74, 0x12, 0xFC, 0x00, 0x9F, 0x94, 0xB7, 0x06, 0xD5,
+ 0x40, 0x7A, 0x20, 0x9E, 0x04, 0x5F, 0x41, 0x2F, 0x3D, 0x77, 0x36, 0x75, 0x81, 0x8A, 0x70, 0x3A,
+ 0x98, 0xD1, 0x71, 0x02, 0x4D, 0x01, 0xC1, 0xFF, 0x0D, 0x00, 0xD3, 0x05, 0xF9, 0x00, 0x0B, 0x00
+};
+
+#endif /* MEMORY_H */
generated by cgit v1.2.3-71-gd317 (git 2.46.0) at 2026-02-09 12:34:03 +0000