First stuff running with scheduler

This commit is contained in:
wheremyfoodat 2024-01-22 02:29:14 +02:00
parent 97f97dc6e2
commit fa82dad38d
5 changed files with 86 additions and 36 deletions

View file

@ -94,7 +94,7 @@ class MyEnvironment final : public Dynarmic::A32::UserCallbacks {
}
void AddTicks(u64 ticks) override {
totalTicks += ticks;
scheduler.currentTimestamp += ticks;
if (ticks > ticksLeft) {
ticksLeft = 0;
@ -111,7 +111,7 @@ class MyEnvironment final : public Dynarmic::A32::UserCallbacks {
return getCyclesForInstruction(isThumb, instruction);
}
MyEnvironment(Memory& mem, Kernel& kernel, Scheduler& scheduler) : mem(mem), kernel(kernel), scheduler(scheduler) {}
MyEnvironment(Memory& mem, Kernel& kernel, Scheduler& scheduler) : mem(mem), kernel(kernel), scheduler(scheduler) {}
};
class CPU {
@ -122,12 +122,13 @@ class CPU {
Dynarmic::ExclusiveMonitor exclusiveMonitor{1};
MyEnvironment env;
Memory& mem;
Scheduler scheduler;
Scheduler& scheduler;
Emulator& emu;
public:
static constexpr u64 ticksPerSec = 268111856;
CPU(Memory& mem, Kernel& kernel);
CPU(Memory& mem, Kernel& kernel, Emulator& emu);
void reset();
void setReg(int index, u32 value) {
@ -166,29 +167,14 @@ class CPU {
}
u64 getTicks() {
return env.totalTicks;
return scheduler.currentTimestamp;
}
// Get reference to tick count. Memory needs access to this
u64& getTicksRef() {
return env.totalTicks;
return scheduler.currentTimestamp;
}
void clearCache() { jit->ClearCache(); }
void runFrame() {
env.ticksLeft = ticksPerSec / 60;
execute:
const auto exitReason = jit->Run();
if (static_cast<u32>(exitReason) != 0) [[unlikely]] {
// Cache invalidation needs to exit the JIT so it returns a CacheInvalidation HaltReason. In our case, we just go back to executing
// The goto might be terrible but it does guarantee that this does not recursively call run and crash, instead getting optimized to a jump
if (Dynarmic::Has(exitReason, Dynarmic::HaltReason::CacheInvalidation)) {
goto execute;
} else {
Helpers::panic("Exit reason: %d\nPC: %08X", static_cast<u32>(exitReason), getReg(15));
}
}
}
void runFrame();
};

View file

@ -15,6 +15,7 @@
#include "io_file.hpp"
#include "lua_manager.hpp"
#include "memory.hpp"
#include "scheduler.hpp"
#ifdef PANDA3DS_ENABLE_HTTP_SERVER
#include "http_server.hpp"
@ -42,6 +43,7 @@ class Emulator {
Kernel kernel;
Crypto::AESEngine aesEngine;
Cheats cheats;
Scheduler scheduler;
// Variables to keep track of whether the user is controlling the 3DS analog stick with their keyboard
// This is done so when a gamepad is connected, we won't automatically override the 3DS analog stick settings with the gamepad's state
@ -85,6 +87,8 @@ class Emulator {
// change ROMs. If Reload is selected, the emulator will reload its selected ROM. This is useful for eg a "reset" button that keeps the current
// ROM and just resets the emu
enum class ReloadOption { NoReload, Reload };
// Used in CPU::runFrame
bool frameDone = false;
Emulator();
~Emulator();
@ -94,6 +98,8 @@ class Emulator {
void reset(ReloadOption reload);
void run(void* frontend = nullptr);
void runFrame();
// Poll the scheduler for events
void pollScheduler();
void resume(); // Resume the emulator
void pause(); // Pause the emulator
@ -121,6 +127,7 @@ class Emulator {
Cheats& getCheats() { return cheats; }
ServiceManager& getServiceManager() { return kernel.getServiceManager(); }
LuaManager& getLua() { return lua; }
Scheduler& getScheduler() { return scheduler; }
RendererType getRendererType() const { return config.rendererType; }
Renderer* getRenderer() { return gpu.getRenderer(); }

View file

@ -18,6 +18,7 @@ struct Scheduler {
using EventMap = boost::container::flat_multimap<Key, Val, std::less<Key>, boost::container::static_vector<std::pair<Key, Val>, size>>;
EventMap<u64, EventType, totalNumberOfEvents> events;
u64 currentTimestamp = 0;
u64 nextTimestamp = 0;
// Set nextTimestamp to the timestamp of the next event
@ -38,6 +39,8 @@ struct Scheduler {
};
void reset() {
currentTimestamp = 0;
// Clear any pending events
events.clear();
// Add a dummy event to always keep the scheduler non-empty