// Copyright (c) 2012- PPSSPP Project. // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, version 2.0 or later versions. // This program 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 2.0 for more details. // A copy of the GPL 2.0 should have been included with the program. // If not, see http://www.gnu.org/licenses/ // Official git repository and contact information can be found at // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/. #include "Core/HLE/HLE.h" #include "Core/HLE/FunctionWrappers.h" #include "Core/HLE/sceMt19937.h" #include "Core/MemMap.h" #include "Core/Reporting.h" static u32 sceMt19937Init(u32 mt19937Addr, u32 seed) { WARN_LOG(HLE, "sceMt19937Init(%08x, %08x)", mt19937Addr, seed); if (!Memory::IsValidAddress(mt19937Addr)) return -1; void *ptr = Memory::GetPointer(mt19937Addr); // This is made to match the memory layout of a PSP MT structure exactly. // Let's just construct it in place with placement new. Elite C++ hackery FTW. new (ptr) MersenneTwister(seed); return 0; } static u32 sceMt19937UInt(u32 mt19937Addr) { WARN_LOG(HLE, "sceMt19937UInt(%08x)", mt19937Addr); if (!Memory::IsValidAddress(mt19937Addr)) return -1; MersenneTwister *mt = (MersenneTwister *)Memory::GetPointer(mt19937Addr); return mt->R32(); } const HLEFunction sceMt19937[] = { {0xECF5D379, WrapU_UU, "sceMt19937Init"}, {0xF40C98E6, WrapU_U, "sceMt19937UInt"}, }; void Register_sceMt19937() { RegisterModule("sceMt19937", ARRAY_SIZE(sceMt19937), sceMt19937); }