71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
#include <Core.hpp>
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#include <ParallelRDPWrapper.hpp>
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#include <Window.hpp>
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#include <algorithm>
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#include <Scheduler.hpp>
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namespace n64 {
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Core::Core() {
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if(SDL_GameControllerAddMappingsFromFile("resources/gamecontrollerdb.txt") < 0) {
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Util::print("Failed to load game controller DB\n");
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}
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}
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void Core::Stop() {
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cpu->Reset();
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cpu->mem.Reset();
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pause = true;
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romLoaded = false;
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}
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CartInfo Core::LoadROM(const std::string& rom_) {
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rom = rom_;
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cpu->Reset();
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cpu->mem.Reset();
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pause = false;
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romLoaded = true;
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CartInfo cartInfo = cpu->mem.LoadROM(rom);
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isPAL = cartInfo.isPAL;
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cpu->mem.mmio.si.pif.ExecutePIF(cpu->mem, cpu->regs, cartInfo);
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return cartInfo;
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}
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void Core::Run(Window& window, float volumeL, float volumeR) {
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MMIO& mmio = cpu->mem.mmio;
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for (int field = 0; field < mmio.vi.numFields; field++) {
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int frameCycles = 0;
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if (!pause && romLoaded) {
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for (int i = 0; i < mmio.vi.numHalflines; i++) {
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mmio.vi.current = (i << 1) + field;
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if ((mmio.vi.current & 0x3FE) == mmio.vi.intr) {
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InterruptRaise(mmio.mi, cpu->regs, Interrupt::VI);
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}
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int cpuCount = cpu->Run();
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frameCycles += cpuCount;
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mmio.rsp.Run(cpuCount, cpu->regs, cpu->mem);
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mmio.ai.Step(cpu->mem, cpu->regs, cpuCount, volumeL, volumeR);
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scheduler.tick(cpuCount, cpu->mem, cpu->regs);
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}
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if ((mmio.vi.current & 0x3FE) == mmio.vi.intr) {
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InterruptRaise(mmio.mi, cpu->regs, Interrupt::VI);
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}
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UpdateScreenParallelRdp(*this, window, GetVI());
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int missedCycles = N64_CYCLES_PER_FRAME(isPAL) - frameCycles;
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mmio.ai.Step(cpu->mem, cpu->regs, missedCycles, volumeL, volumeR);
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} else if (pause && romLoaded) {
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UpdateScreenParallelRdp(*this, window, GetVI());
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} else if (pause && !romLoaded) {
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UpdateScreenParallelRdpNoGame(*this, window);
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}
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}
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}
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}
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