pcsx2/common/WrappedMemCopy.h

51 lines
1.6 KiB
C

/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2023 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 "common/Pcsx2Defs.h"
__ri static void MemCopy_WrappedDest(const u128* src, u128* destBase, uint& destStart, uint destSize, uint len)
{
uint endpos = destStart + len;
if (endpos < destSize)
{
memcpy(&destBase[destStart], src, len * 16);
destStart += len;
}
else
{
uint firstcopylen = destSize - destStart;
memcpy(&destBase[destStart], src, firstcopylen * 16);
destStart = endpos % destSize;
memcpy(destBase, src + firstcopylen, destStart * 16);
}
}
__ri static void MemCopy_WrappedSrc(const u128* srcBase, uint& srcStart, uint srcSize, u128* dest, uint len)
{
uint endpos = srcStart + len;
if (endpos < srcSize)
{
memcpy(dest, &srcBase[srcStart], len * 16);
srcStart += len;
}
else
{
uint firstcopylen = srcSize - srcStart;
memcpy(dest, &srcBase[srcStart], firstcopylen * 16);
srcStart = endpos % srcSize;
memcpy(dest + firstcopylen, srcBase, srcStart * 16);
}
}