pcsx2/pcsx2/VUmicroMem.cpp

/*  PCSX2 - PS2 Emulator for PCs
 *  Copyright (C) 2002-2010  PCSX2 Dev Team
 *
 *  PCSX2 is free software: you can redistribute it and/or modify it under the terms
 *  of the GNU Lesser General Public License as published by the Free Software Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 *  PURPOSE.  See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with PCSX2.
 *  If not, see <http://www.gnu.org/licenses/>.
 */


#include "PrecompiledHeader.h"
#include "Common.h"
#include "VUmicro.h"
#include "MTVU.h"

alignas(16) VURegs vuRegs[2];


vuMemoryReserve::vuMemoryReserve()
	: _parent("VU0/1 on-chip memory")
{
}

vuMemoryReserve::~vuMemoryReserve()
{
	Release();
}

void vuMemoryReserve::Assign(VirtualMemoryManagerPtr allocator)
{
	static constexpr u32 VU_MEMORY_RESERVE_SIZE = VU1_PROGSIZE + VU1_MEMSIZE + VU0_PROGSIZE + VU0_MEMSIZE;

	_parent::Assign(std::move(allocator), HostMemoryMap::VUmemOffset, VU_MEMORY_RESERVE_SIZE);

	u8* curpos = GetPtr();
	VU0.Micro	= curpos; curpos += VU0_PROGSIZE;
	VU0.Mem		= curpos; curpos += VU0_MEMSIZE;
	VU1.Micro	= curpos; curpos += VU1_PROGSIZE;
	VU1.Mem		= curpos; curpos += VU1_MEMSIZE;
}

void vuMemoryReserve::Release()
{
	_parent::Release();

	VU0.Micro = VU0.Mem = nullptr;
	VU1.Micro = VU1.Mem = nullptr;
}

void vuMemoryReserve::Reset()
{
	_parent::Reset();

	pxAssert( VU0.Mem );
	pxAssert( VU1.Mem );

	// Below memMap is already called by "void eeMemoryReserve::Reset()"
	//memMapVUmicro();

	// === VU0 Initialization ===
	std::memset(&VU0.ACC, 0, sizeof(VU0.ACC));
	std::memset(VU0.VF, 0, sizeof(VU0.VF));
	std::memset(VU0.VI, 0, sizeof(VU0.VI));
    VU0.VF[0].f.x = 0.0f;
	VU0.VF[0].f.y = 0.0f;
	VU0.VF[0].f.z = 0.0f;
	VU0.VF[0].f.w = 1.0f;
	VU0.VI[0].UL = 0;

	// === VU1 Initialization ===
	std::memset(&VU1.ACC, 0, sizeof(VU1.ACC));
	std::memset(VU1.VF, 0, sizeof(VU1.VF));
	std::memset(VU1.VI, 0, sizeof(VU1.VI));
	VU1.VF[0].f.x = 0.0f;
	VU1.VF[0].f.y = 0.0f;
	VU1.VF[0].f.z = 0.0f;
	VU1.VF[0].f.w = 1.0f;
	VU1.VI[0].UL = 0;
}

bool SaveStateBase::vuMicroFreeze()
{
	if(IsSaving())
		vu1Thread.WaitVU();

	if (!FreezeTag("vuMicroRegs"))
		return false;

	// VU0 state information

	Freeze(VU0.ACC);
	Freeze(VU0.VF);
	Freeze(VU0.VI);
	Freeze(VU0.q);

	Freeze(VU0.cycle);
	Freeze(VU0.flags);
	Freeze(VU0.code);
	Freeze(VU0.start_pc);
	Freeze(VU0.branch);
	Freeze(VU0.branchpc);
	Freeze(VU0.delaybranchpc);
	Freeze(VU0.takedelaybranch);
	Freeze(VU0.ebit);
	Freeze(VU0.pending_q);
	Freeze(VU0.pending_p);
	Freeze(VU0.micro_macflags);
	Freeze(VU0.micro_clipflags);
	Freeze(VU0.micro_statusflags);
	Freeze(VU0.macflag);
	Freeze(VU0.statusflag);
	Freeze(VU0.clipflag);
	Freeze(VU0.nextBlockCycles);
	Freeze(VU0.VIBackupCycles);
	Freeze(VU0.VIOldValue);
	Freeze(VU0.VIRegNumber);
	Freeze(VU0.fmac);
	Freeze(VU0.fmacreadpos);
	Freeze(VU0.fmacwritepos);
	Freeze(VU0.fmaccount);
	Freeze(VU0.fdiv);
	Freeze(VU0.efu);
	Freeze(VU0.ialu);
	Freeze(VU0.ialureadpos);
	Freeze(VU0.ialuwritepos);
	Freeze(VU0.ialucount);

	// VU1 state information
	Freeze(VU1.ACC);
	Freeze(VU1.VF);
	Freeze(VU1.VI);
	Freeze(VU1.q);
	Freeze(VU1.p);

	Freeze(VU1.cycle);
	Freeze(VU1.flags);
	Freeze(VU1.code);
	Freeze(VU1.start_pc);
	Freeze(VU1.branch);
	Freeze(VU1.branchpc);
	Freeze(VU1.delaybranchpc);
	Freeze(VU1.takedelaybranch);
	Freeze(VU1.ebit);
	Freeze(VU1.pending_q);
	Freeze(VU1.pending_p);
	Freeze(VU1.micro_macflags);
	Freeze(VU1.micro_clipflags);
	Freeze(VU1.micro_statusflags);
	Freeze(VU1.macflag);
	Freeze(VU1.statusflag);
	Freeze(VU1.clipflag);
	Freeze(VU1.nextBlockCycles);
	Freeze(VU1.xgkickaddr);
	Freeze(VU1.xgkickdiff);
	Freeze(VU1.xgkicksizeremaining);
	Freeze(VU1.xgkicklastcycle);
	Freeze(VU1.xgkickcyclecount);
	Freeze(VU1.xgkickenable);
	Freeze(VU1.xgkickendpacket);
	Freeze(VU1.VIBackupCycles);
	Freeze(VU1.VIOldValue);
	Freeze(VU1.VIRegNumber);
	Freeze(VU1.fmac);
	Freeze(VU1.fmacreadpos);
	Freeze(VU1.fmacwritepos);
	Freeze(VU1.fmaccount);
	Freeze(VU1.fdiv);
	Freeze(VU1.efu);
	Freeze(VU1.ialu);
	Freeze(VU1.ialureadpos);
	Freeze(VU1.ialuwritepos);
	Freeze(VU1.ialucount);

	return IsOkay();
}