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CPU/Recompiler: Write exception exits to far code buffer

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Keeps the hot path nice and clean.
This commit is contained in:
Connor McLaughlin
2019-11-22 17:57:02 +10:00
parent 7b0978119b
commit 11966e4caf
7 changed files with 345 additions and 286 deletions
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21
src/core/cpu_code_cache.cpp
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@ -9,8 +9,11 @@ Log_SetChannel(CPU::CodeCache);
namespace CPU {
bool USE_CODE_CACHE = true;
bool USE_RECOMPILER = true;
bool USE_CODE_CACHE = false;
bool USE_RECOMPILER = false;
static constexpr size_t RECOMPILER_CODE_CACHE_SIZE = 32 * 1024 * 1024;
static constexpr size_t RECOMPILER_FAR_CODE_CACHE_SIZE = 32 * 1024 * 1024;
CodeCache::CodeCache() = default;
@ -22,7 +25,7 @@ void CodeCache::Initialize(System* system, Core* core, Bus* bus)
m_core = core;
m_bus = bus;
m_code_buffer = std::make_unique<JitCodeBuffer>();
m_code_buffer = std::make_unique<JitCodeBuffer>(RECOMPILER_CODE_CACHE_SIZE, RECOMPILER_FAR_CODE_CACHE_SIZE);
m_asm_functions = std::make_unique<Recompiler::ASMFunctions>();
m_asm_functions->Generate(m_code_buffer.get());
}
@ -50,7 +53,7 @@ void CodeCache::Execute()
#if 0
const u32 tick = m_system->GetGlobalTickCounter() + m_core->GetPendingTicks();
if (tick == 8950812)
if (tick == 58672386)
__debugbreak();
#endif
@ -184,6 +187,11 @@ bool CodeCache::CompileBlock(CodeBlock* block)
bool is_branch_delay_slot = false;
bool is_load_delay_slot = false;
#if 0
if (pc == 0x0005aa90)
__debugbreak();
#endif
for (;;)
{
CodeBlockInstruction cbi = {};
@ -247,7 +255,10 @@ bool CodeCache::CompileBlock(CodeBlock* block)
if (USE_RECOMPILER)
{
// Ensure we're not going to run out of space while compiling this block.
if (m_code_buffer->GetFreeCodeSpace() < (block->instructions.size() * Recompiler::MAX_HOST_BYTES_PER_INSTRUCTION))
if (m_code_buffer->GetFreeCodeSpace() <
(block->instructions.size() * Recompiler::MAX_NEAR_HOST_BYTES_PER_INSTRUCTION) ||
m_code_buffer->GetFreeFarCodeSpace() <
(block->instructions.size() * Recompiler::MAX_FAR_HOST_BYTES_PER_INSTRUCTION))
{
Log_WarningPrintf("Out of code space, flushing all blocks.");
Reset();