mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-11-23 21:39:52 +00:00
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
// 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>, "sceMt19937Init", 'x', "xx"},
|
|
{0XF40C98E6, &WrapU_U<sceMt19937UInt>, "sceMt19937UInt", 'x', "x" },
|
|
};
|
|
|
|
void Register_sceMt19937()
|
|
{
|
|
RegisterModule("sceMt19937", ARRAY_SIZE(sceMt19937), sceMt19937);
|
|
}
|