#pragma once
#include <common.hpp>
#include <core/mmio/MI.hpp>
#include <core/mmio/PIF.hpp>

namespace n64 {

union SIStatus {
  u32 raw{};
  struct {
    unsigned dmaBusy : 1;
    unsigned ioBusy : 1;
    unsigned reserved : 1;
    unsigned dmaErr : 1;
    unsigned : 8;
    unsigned intr : 1;
  };
};

struct SI {
  SI();
  void Reset();
  SIStatus status{};
  u32 dramAddr{};
  u32 pifAddr{};
  bool toDram = false;

  [[nodiscard]] auto Read(u32) const -> u32;
  void Write(u32, u32);
  template <bool toDram>
  void DMA();
  void DMA();
  PIF pif;
};

#define SI_DMA_DELAY (65536 * 2)
} // namespace n64