mirror of https://github.com/PCSX2/pcsx2.git
81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
// SPDX-FileCopyrightText: 2002-2023 PCSX2 Dev Team
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// SPDX-License-Identifier: LGPL-3.0+
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#include "Common.h"
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#include "VUmicro.h"
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#include "MTVU.h"
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#include "GS.h"
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#include "Gif_Unit.h"
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BaseVUmicroCPU* CpuVU0 = nullptr;
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BaseVUmicroCPU* CpuVU1 = nullptr;
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__inline u32 CalculateMinRunCycles(u32 cycles, bool requiresAccurateCycles)
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{
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// If we're running an interlocked COP2 operation
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// run for an exact amount of cycles
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if(requiresAccurateCycles)
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return cycles;
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// Allow a minimum of 16 cycles to avoid running small blocks
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// Running a block of like 3 cycles is highly inefficient
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// so while sync isn't tight, it's okay to run ahead a little bit.
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return std::max(16U, cycles);
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}
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// Executes a Block based on EE delta time
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void BaseVUmicroCPU::ExecuteBlock(bool startUp)
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{
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const u32& stat = VU0.VI[REG_VPU_STAT].UL;
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const int test = m_Idx ? 0x100 : 1;
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if (m_Idx && THREAD_VU1)
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{
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vu1Thread.Get_MTVUChanges();
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return;
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}
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if (!(stat & test))
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{
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// VU currently flushes XGKICK on VU1 end so no need for this, yet
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/*if (m_Idx == 1 && VU1.xgkickenable)
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{
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_vuXGKICKTransfer((cpuRegs.cycle - VU1.xgkicklastcycle), false);
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}*/
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return;
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}
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if (startUp)
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{
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Execute(CalculateMinRunCycles(0, false));
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}
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else // Continue Executing
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{
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u32 cycle = m_Idx ? VU1.cycle : VU0.cycle;
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s32 delta = (s32)(u32)(cpuRegs.cycle - cycle);
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if (delta > 0)
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Execute(CalculateMinRunCycles(delta, false));
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}
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}
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// This function is called by VU0 Macro (COP2) after transferring some
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// EE data to VU0's registers. We want to run VU0 Micro right after this
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// to ensure that the register is used at the correct time.
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// This fixes spinning/hanging in some games like Ratchet and Clank's Intro.
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void BaseVUmicroCPU::ExecuteBlockJIT(BaseVUmicroCPU* cpu, bool interlocked)
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{
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const u32& stat = VU0.VI[REG_VPU_STAT].UL;
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constexpr int test = 1;
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if (stat & test)
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{ // VU is running
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s32 delta = (s32)(u32)(cpuRegs.cycle - VU0.cycle);
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if (delta > 0)
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{
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cpu->Execute(CalculateMinRunCycles(delta, interlocked)); // Execute the time since the last call
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}
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}
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}
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