Function MapTLB

pcsx2/COP0.cpp:227–281

void MapTLB(const tlbs& t, int i)
{
	u32 mask, addr;
	u32 saddr, eaddr;

	COP0_LOG("MAP TLB %d: 0x%08X-> [0x%08X 0x%08X] S=%d G=%d ASID=%d Mask=0x%03X EntryLo0 PFN=%x EntryLo0 Cache=%x EntryLo1 PFN=%x EntryLo1 Cache=%x VPN2=%x",
		i, t.VPN2(), t.PFN0(), t.PFN1(), t.isSPR() >> 31, t.isGlobal(), t.EntryHi.ASID,
		t.Mask(), t.EntryLo0.PFN, t.EntryLo0.C, t.EntryLo1.PFN, t.EntryLo1.C, t.VPN2());

	// According to the manual
	// 'It [SPR] must be mapped into a contiguous 16 KB of virtual address space that is
	// aligned on a 16KB boundary.Results are not guaranteed if this restriction is not followed.'
	// Assume that the game isn't doing anything less-than-ideal with the scratchpad mapping and map it directly to eeMem->Scratch.
	if (t.isSPR())
	{
		if (t.VPN2() != 0x70000000)
			Console.Warning("COP0: Mapping Scratchpad to non-default address 0x%08X", t.VPN2());

		vtlb_VMapBuffer(t.VPN2(), eeMem->Scratch, Ps2MemSize::Scratch);
	}
	else
	{
		if (t.EntryLo0.V)
		{
			mask = ((~t.Mask()) << 1) & 0xfffff;
			saddr = t.VPN2() >> 12;
			eaddr = saddr + t.Mask() + 1;

			for (addr = saddr; addr < eaddr; addr++)
			{
				if ((addr & mask) == ((t.VPN2() >> 12) & mask))
				{ //match
					memSetPageAddr(addr << 12, t.PFN0() + ((addr - saddr) << 12));
					Cpu->Clear(addr << 12, 0x400);
				}
			}
		}

		if (t.EntryLo1.V)
		{
			mask = ((~t.Mask()) << 1) & 0xfffff;
			saddr = (t.VPN2() >> 12) + t.Mask() + 1;
			eaddr = saddr + t.Mask() + 1;

			for (addr = saddr; addr < eaddr; addr++)
			{
				if ((addr & mask) == ((t.VPN2() >> 12) & mask))
				{ //match
					memSetPageAddr(addr << 12, t.PFN1() + ((addr - saddr) << 12));
					Cpu->Clear(addr << 12, 0x400);
				}
			}
		}
	}
}

__inline u32 ConvertPageMask(const u32 PageMask)
{