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JIT optimizations and refactoring (#675)

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* CPU/Recompiler: Use rel32 call where possible for no-args

* JitCodeBuffer: Support using preallocated buffer

* CPU/Recompiler/AArch64: Use bl instead of blr for short branches

* CPU/CodeCache: Allocate recompiler buffer in program space

This means we don't need 64-bit moves for every call out of the
recompiler.

* GTE: Don't store as u16 and load as u32

* CPU/Recompiler: Add methods to emit global load/stores

* GTE: Convert class to namespace

* CPU/Recompiler: Call GTE functions directly

* Settings: Turn into a global variable

* GPU: Replace local pointers with global

* InterruptController: Turn into a global pointer

* System: Replace local pointers with global

* Timers: Turn into a global instance

* DMA: Turn into a global instance

* SPU: Turn into a global instance

* CDROM: Turn into a global instance

* MDEC: Turn into a global instance

* Pad: Turn into a global instance

* SIO: Turn into a global instance

* CDROM: Move audio FIFO to the heap

* CPU/Recompiler: Drop ASMFunctions

No longer needed since we have code in the same 4GB window.

* CPUCodeCache: Turn class into namespace

* Bus: Local pointer -> global pointers

* CPU: Turn class into namespace

* Bus: Turn into namespace

* GTE: Store registers in CPU state struct

Allows relative addressing on ARM.

* CPU/Recompiler: Align code storage to page size

* CPU/Recompiler: Fix relative branches on A64

* HostInterface: Local references to global

* System: Turn into a namespace, move events out

* Add guard pages

* Android: Fix build
This commit is contained in:
Connor McLaughlin
2020-07-31 17:09:18 +10:00
committed by GitHub
parent 1f9fc6ab74
commit b6f871d2b9
88 changed files with 4993 additions and 5045 deletions
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27
src/core/mdec.cpp
View File

@ -1,26 +1,35 @@
#include "mdec.h"
#include "common/log.h"
#include "common/state_wrapper.h"
#include "cpu_core.h"
#include "dma.h"
#include "interrupt_controller.h"
#include "system.h"
#include <imgui.h>
Log_SetChannel(MDEC);
MDEC g_mdec;
MDEC::MDEC() = default;
MDEC::~MDEC() = default;
void MDEC::Initialize(System* system, DMA* dma)
void MDEC::Initialize()
{
m_system = system;
m_dma = dma;
m_block_copy_out_event = system->CreateTimingEvent("MDEC Block Copy Out", TICKS_PER_BLOCK, TICKS_PER_BLOCK,
std::bind(&MDEC::CopyOutBlock, this), false);
m_block_copy_out_event = TimingEvents::CreateTimingEvent("MDEC Block Copy Out", TICKS_PER_BLOCK, TICKS_PER_BLOCK,
std::bind(&MDEC::CopyOutBlock, this), false);
m_total_blocks_decoded = 0;
Reset();
}
void MDEC::Shutdown()
{
m_block_copy_out_event.reset();
}
void MDEC::Reset()
{
m_block_copy_out_event->Deactivate();
SoftReset();
}
@ -176,12 +185,12 @@ void MDEC::UpdateStatus()
// we always want data in if it's enabled
const bool data_in_request = m_enable_dma_in && m_data_in_fifo.GetSpace() >= (32 * 2);
m_status.data_in_request = data_in_request;
m_dma->SetRequest(DMA::Channel::MDECin, data_in_request);
g_dma.SetRequest(DMA::Channel::MDECin, data_in_request);
// we only want to send data out if we have some in the fifo
const bool data_out_request = m_enable_dma_out && !m_data_out_fifo.IsEmpty();
m_status.data_out_request = data_out_request;
m_dma->SetRequest(DMA::Channel::MDECout, data_out_request);
g_dma.SetRequest(DMA::Channel::MDECout, data_out_request);
}
u32 MDEC::ReadDataRegister()
@ -192,7 +201,7 @@ u32 MDEC::ReadDataRegister()
if (HasPendingBlockCopyOut())
{
Log_DevPrint("MDEC data out FIFO empty on read - stalling CPU");
m_system->StallCPU(m_block_copy_out_event->GetTicksUntilNextExecution());
CPU::AddPendingTicks(m_block_copy_out_event->GetTicksUntilNextExecution());
}
else
{
@ -695,7 +704,7 @@ void MDEC::DrawDebugStateWindow()
const float framebuffer_scale = ImGui::GetIO().DisplayFramebufferScale.x;
ImGui::SetNextWindowSize(ImVec2(300.0f * framebuffer_scale, 350.0f * framebuffer_scale), ImGuiCond_FirstUseEver);
if (!ImGui::Begin("MDEC State", &m_system->GetSettings().debugging.show_mdec_state))
if (!ImGui::Begin("MDEC State", &g_settings.debugging.show_mdec_state))
{
ImGui::End();
return;