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SPU interpreter (basic concept)

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This commit is contained in:
Nekotekina 2015-03-20 19:53:54 +03:00
parent 620e937473
commit 63276a3f84
7 changed files with 1552 additions and 18 deletions
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90
rpcs3/Emu/Cell/SPUThread.cpp
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@ -17,10 +17,38 @@
#include "Emu/Cell/SPUThread.h"
#include "Emu/Cell/SPUDecoder.h"
#include "Emu/Cell/SPUInterpreter.h"
#include "Emu/Cell/SPUInterpreter2.h"
#include "Emu/Cell/SPURecompiler.h"
#include <cfenv>
class spu_inter_func_list_t
{
std::array<spu_inter_func_t, 2048> funcs;
public:
spu_inter_func_list_t()
{
auto inter = new SPUInterpreter2;
SPUDecoder dec(*inter);
for (u32 i = 0; i < funcs.size(); i++)
{
inter->func = spu_interpreter::DEFAULT;
dec.Decode(i << 21);
funcs[i] = inter->func;
}
}
__forceinline spu_inter_func_t operator [] (u32 opcode)
{
return funcs[opcode >> 21];
}
}
g_spu_inter_func_list;
SPUThread& GetCurrentSPUThread()
{
CPUThread* thread = GetCurrentCPUThread();
@ -46,23 +74,43 @@ SPUThread::~SPUThread()
void SPUThread::Task()
{
const int round = std::fegetround();
std::fesetround(FE_TOWARDZERO);
if (m_custom_task)
{
m_custom_task(*this);
}
else
{
CPUThread::Task();
return m_custom_task(*this);
}
if (std::fegetround() != FE_TOWARDZERO)
if (m_dec)
{
LOG_ERROR(SPU, "Rounding mode has changed(%d)", std::fegetround());
return CPUThread::Task();
}
while (true)
{
// read opcode
const spu_opcode_t opcode = { vm::read32(PC + offset) };
// get interpreter function
const auto func = g_spu_inter_func_list[opcode.opcode];
if (m_events)
{
// process events
if (m_events & CPU_EVENT_STOP && (Emu.IsStopped() || IsStopped() || IsPaused()))
{
m_events &= ~CPU_EVENT_STOP;
return;
}
}
// call interpreter function
func(*this, opcode);
// next instruction
//PC += 4;
NextPc(4);
}
std::fesetround(round);
}
void SPUThread::DoReset()
@ -122,19 +170,33 @@ void SPUThread::CloseStack()
void SPUThread::DoRun()
{
switch(Ini.SPUDecoderMode.GetValue())
m_dec = nullptr;
switch (auto mode = Ini.SPUDecoderMode.GetValue())
{
case 0: // original interpreter
{
case 1:
m_dec = new SPUDecoder(*new SPUInterpreter(*this));
break;
break;
}
case 1: // alternative interpreter
{
break;
}
case 2:
{
m_dec = new SPURecompilerCore(*this);
break;
break;
}
default:
LOG_ERROR(SPU, "Invalid SPU decoder mode: %d", Ini.SPUDecoderMode.GetValue());
{
LOG_ERROR(SPU, "Invalid SPU decoder mode: %d", mode);
Emu.Pause();
}
}
}
void SPUThread::DoResume()