93 lines
1.7 KiB
C++
93 lines
1.7 KiB
C++
#pragma once
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#include <array>
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#include <vector>
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#include <common.hpp>
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namespace n64 {
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union DPCStatusWrite {
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u32 raw;
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struct {
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unsigned clearXbusDmemDma : 1;
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unsigned setXbusDmemDma : 1;
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unsigned clearFreeze : 1;
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unsigned setFreeze : 1;
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unsigned clearFlush : 1;
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unsigned setFlush : 1;
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unsigned clearTmem : 1;
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unsigned clearPipe : 1;
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unsigned clearCmd : 1;
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unsigned clearClock : 1;
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};
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};
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union DPCStatus {
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struct {
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unsigned xbusDmemDma : 1;
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unsigned freeze : 1;
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unsigned flush : 1;
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unsigned startGclk : 1;
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unsigned tmemBusy : 1;
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unsigned pipeBusy : 1;
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unsigned cmdBusy : 1;
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unsigned cbufReady : 1;
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unsigned dmaBusy : 1;
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unsigned endValid : 1;
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unsigned startValid : 1;
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};
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u32 raw;
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};
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struct DPC {
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DPCStatus status;
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u32 start;
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u32 current;
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u32 end;
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u32 clock;
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u32 tmem;
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};
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struct RDP {
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static constexpr auto COMMAND_BUFFER_SIZE = 0xFFFFF;
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RDP();
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void Reset();
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[[nodiscard]] auto Read(u32 addr) const -> u32;
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void Write(u32 addr, u32 val);
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void WriteStatus(u32 val);
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void RunCommand();
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void OnFullSync();
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FORCE_INLINE void WriteStart(u32 val) {
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if (!dpc.status.startValid) {
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dpc.start = val & 0xFFFFF8;
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}
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dpc.status.startValid = true;
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}
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FORCE_INLINE void WriteEnd(u32 val) {
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dpc.end = val & 0xFFFFF8;
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if (dpc.status.startValid) {
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dpc.current = dpc.start;
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dpc.status.startValid = false;
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}
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RunCommand();
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}
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template <typename T>
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void WriteRDRAM(size_t, T);
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template <typename T>
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T ReadRDRAM(size_t);
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private:
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friend struct Mem;
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friend struct MMIO;
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std::vector<u8> rdram{};
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public:
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DPC dpc{};
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std::array<u32, COMMAND_BUFFER_SIZE> cmd_buf{};
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};
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} // namespace n64
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