mirror of https://github.com/PCSX2/pcsx2.git
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "PrecompiledHeader.h"
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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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// Executes a Block based on EE delta time
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void BaseVUmicroCPU::ExecuteBlock(bool startUp) {
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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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const int s = EmuConfig.Gamefixes.VU0KickstartHack ? 16 : 0; // Kick Start Cycles (Jak needs at least 4 due to writing values after they're read
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if (m_Idx && THREAD_VU1)
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{
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vu1Thread.Get_GSChanges();
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}
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if (!(stat & test)) return;
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if (startUp && s) { // Start Executing a microprogram
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Execute(s); // Kick start VU
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if (stat & test) {
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cpuSetNextEventDelta(s);
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if (m_Idx)
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VU1.cycle = cpuRegs.cycle;
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else
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VU0.cycle = cpuRegs.cycle;
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}
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}
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else { // Continue Executing
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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) { // Enough time has passed
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Execute(delta); // Execute the time since the last call
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if (stat & test)
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cpuSetNextEventDelta(delta);
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}
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else cpuSetNextEventDelta(-delta); // Haven't caught-up from kick start
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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) {
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const u32& stat = VU0.VI[REG_VPU_STAT].UL;
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const int test = cpu->m_Idx ? 0x100 : 1;
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if (stat & test) { // VU is running
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u32 cycle = cpu->m_Idx ? VU1.cycle : VU0.cycle;
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s32 delta = (s32)(u32)(cpuRegs.cycle - cycle);
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if (delta > 0) { // Enough time has passed
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cpu->Execute(delta); // Execute the time since the last call
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if (stat & test) {
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cpuSetNextEventDelta(delta);
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}
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}
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else {
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cpuSetNextEventDelta(-delta); // Haven't caught-up from kick start
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}
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}
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}
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