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Partial implementation of DMA controller and GPU stubs

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This commit is contained in:
Connor McLaughlin
2019-09-11 14:01:19 +10:00
parent 2149ab4d69
commit 27913cd20a
13 changed files with 425 additions and 30 deletions
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20
src/pse/bus.h
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@ -20,11 +20,11 @@ public:
bool DoState(StateWrapper& sw);
bool ReadByte(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u8* value);
bool ReadWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u16* value);
bool ReadDWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u32* value);
bool ReadHalfWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u16* value);
bool ReadWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u32* value);
bool WriteByte(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u8 value);
bool WriteWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u16 value);
bool WriteDWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u32 value);
bool WriteHalfWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u16 value);
bool WriteWord(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u32 value);
template<MemoryAccessType type, MemoryAccessSize size>
bool DispatchAccess(PhysicalMemoryAddress cpu_address, PhysicalMemoryAddress bus_address, u32& value);
@ -33,6 +33,9 @@ private:
static constexpr u32 DMA_BASE = 0x1F801080;
static constexpr u32 DMA_SIZE = 0x80;
static constexpr u32 DMA_MASK = DMA_SIZE - 1;
static constexpr u32 GPU_BASE = 0x1F801810;
static constexpr u32 GPU_SIZE = 0x10;
static constexpr u32 GPU_MASK = GPU_SIZE - 1;
static constexpr u32 SPU_BASE = 0x1F801C00;
static constexpr u32 SPU_SIZE = 0x300;
static constexpr u32 SPU_MASK = 0x3FF;
@ -54,11 +57,14 @@ private:
bool ReadExpansionRegion2(MemoryAccessSize size, u32 offset, u32& value);
bool WriteExpansionRegion2(MemoryAccessSize size, u32 offset, u32 value);
bool ReadSPU(MemoryAccessSize size, u32 offset, u32& value);
bool WriteSPU(MemoryAccessSize size, u32 offset, u32 value);
bool DoReadGPU(MemoryAccessSize size, u32 offset, u32& value);
bool DoWriteGPU(MemoryAccessSize size, u32 offset, u32 value);
bool DoReadDMA(MemoryAccessSize size, u32 offset, u32& value);
bool DoWriteDMA(MemoryAccessSize size, u32 offset, u32& value);
bool DoWriteDMA(MemoryAccessSize size, u32 offset, u32 value);
bool ReadSPU(MemoryAccessSize size, u32 offset, u32& value);
bool WriteSPU(MemoryAccessSize size, u32 offset, u32 value);
DMA* m_dma = nullptr;
GPU* m_gpu = nullptr;