40 lines
714 B
C++
40 lines
714 B
C++
#pragma once
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#include <common.hpp>
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#include <core/mmio/Interrupt.hpp>
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#include <core/mmio/MI.hpp>
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#include <core/mmio/PIF.hpp>
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namespace n64 {
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union SIStatus {
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u32 raw{};
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struct {
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unsigned dmaBusy:1;
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unsigned ioBusy:1;
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unsigned reserved:1;
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unsigned dmaErr:1;
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unsigned:8;
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unsigned intr:1;
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};
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};
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struct Mem;
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struct SI {
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SI();
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void Reset();
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SIStatus status{};
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u32 dramAddr{};
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u32 pifAddr{};
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bool toDram = false;
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auto Read(MI&, u32) const -> u32;
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void Write(Mem&, Registers&, u32, u32);
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void DMA(Mem&, Registers&);
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PIF pif;
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};
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// just to silence warning, it is used.
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[[maybe_unused]] static void DMA(Mem& mem, Registers& regs);
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#define SI_DMA_DELAY (65536 * 2)
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} |