mirror of
https://github.com/RPCSX/rpcsx.git
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82 lines
1.5 KiB
C++
82 lines
1.5 KiB
C++
#include "stdafx.h"
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#include "Utilities/Log.h"
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#include "Emu/IdManager.h"
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#include "Emu/Memory/Memory.h"
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#include "SPUThread.h"
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#include "SPURecompiler.h"
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#include "SPUASMJITRecompiler.h"
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extern u64 get_system_time();
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SPURecompilerDecoder::SPURecompilerDecoder(SPUThread& spu)
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: db(fxm::get_always<SPUDatabase>())
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, rec(fxm::get_always<spu_recompiler>())
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, spu(spu)
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{
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}
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u32 SPURecompilerDecoder::DecodeMemory(const u32 address)
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{
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if (spu.offset != address - spu.pc || spu.pc >= 0x40000 || spu.pc % 4)
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{
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throw EXCEPTION("Invalid address or PC (address=0x%x, PC=0x%05x)", address, spu.pc);
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}
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// get SPU LS pointer
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const auto _ls = vm::ps3::_ptr<u32>(spu.offset);
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// always validate (TODO)
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const auto func = db->analyse(_ls, spu.pc);
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// reset callstack if necessary
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if (func->does_reset_stack && spu.recursion_level)
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{
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spu.m_state |= CPU_STATE_RETURN;
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return 0;
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}
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if (!func->compiled)
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{
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rec->compile(*func);
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if (!func->compiled) throw EXCEPTION("Compilation failed");
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}
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const u32 res = func->compiled(&spu, _ls);
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if (const auto exception = spu.pending_exception)
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{
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spu.pending_exception = nullptr;
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std::rethrow_exception(exception);
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}
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if (res & 0x1000000)
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{
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spu.halt();
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}
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if (res & 0x2000000)
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{
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}
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if (res & 0x4000000)
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{
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if (res & 0x8000000)
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{
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throw EXCEPTION("Undefined behaviour");
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}
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spu.set_interrupt_status(true);
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}
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else if (res & 0x8000000)
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{
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spu.set_interrupt_status(false);
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}
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spu.pc = res & 0x3fffc;
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return 0;
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}
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