history-museum/winamp
1
0
Fork 0
mirror of https://github.com/WinampDesktop/winamp.git synced 2025-06-18 10:25:45 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

CPU/Recompiler: Faster ASM dispatcher

Browse Source
This commit is contained in:
Connor McLaughlin
2020-10-18 14:43:09 +10:00
parent cb351a7dbd
commit a6f8dde790
12 changed files with 513 additions and 137 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
src/core/cpu_code_cache.cpp
View File

@ -35,14 +35,9 @@ alignas(Recompiler::CODE_STORAGE_ALIGNMENT) static u8
static JitCodeBuffer s_code_buffer;
enum : u32
{
FAST_MAP_RAM_SLOT_COUNT = Bus::RAM_SIZE / 4,
FAST_MAP_BIOS_SLOT_COUNT = Bus::BIOS_SIZE / 4,
FAST_MAP_TOTAL_SLOT_COUNT = FAST_MAP_RAM_SLOT_COUNT + FAST_MAP_BIOS_SLOT_COUNT,
};
std::array<CodeBlock::HostCodePointer, FAST_MAP_TOTAL_SLOT_COUNT> s_fast_map;
DispatcherFunction s_asm_dispatcher;
SingleBlockDispatcherFunction s_single_block_asm_dispatcher;
ALWAYS_INLINE static u32 GetFastMapIndex(u32 pc)
{
@ -51,6 +46,7 @@ ALWAYS_INLINE static u32 GetFastMapIndex(u32 pc)
((pc & Bus::RAM_MASK) >> 2);
}
static void CompileDispatcher();
static void FastCompileBlockFunction();
static void ResetFastMap()
@ -111,6 +107,7 @@ void Initialize(bool use_recompiler)
}
ResetFastMap();
CompileDispatcher();
#else
s_use_recompiler = false;
#endif
@ -238,9 +235,27 @@ void Execute()
#ifdef WITH_RECOMPILER
void CompileDispatcher()
{
{
Recompiler::CodeGenerator cg(&s_code_buffer);
s_asm_dispatcher = cg.CompileDispatcher();
}
{
Recompiler::CodeGenerator cg(&s_code_buffer);
s_single_block_asm_dispatcher = cg.CompileSingleBlockDispatcher();
}
}
CodeBlock::HostCodePointer* GetFastMapPointer()
{
return s_fast_map.data();
}
void ExecuteRecompiler()
{
g_state.frame_done = false;
#if 0
while (!g_state.frame_done)
{
if (HasPendingInterrupt())
@ -261,6 +276,9 @@ void ExecuteRecompiler()
TimingEvents::RunEvents();
}
#else
s_asm_dispatcher();
#endif
// in case we switch to interpreter...
g_state.regs.npc = g_state.regs.pc;
@ -291,6 +309,7 @@ void Flush()
#ifdef WITH_RECOMPILER
s_code_buffer.Reset();
ResetFastMap();
CompileDispatcher();
#endif
}
@ -499,7 +518,7 @@ void FastCompileBlockFunction()
{
CodeBlock* block = LookupBlock(GetNextBlockKey());
if (block)
block->host_code();
s_single_block_asm_dispatcher(block->host_code);
else
InterpretUncachedBlock();
}