mirror of https://github.com/PCSX2/pcsx2.git
86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <xmmintrin.h>
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#define StoreDestIdx(idx) case idx: _mm_store_ps(&destxmm[idx-1][0], srcreg)
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template< u8 data >
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__noinline void memset_sse_a( void* dest, const size_t size )
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{
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const uint MZFqwc = size / 16;
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pxAssert( (size & 0xf) == 0 );
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__m128 srcreg;
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if (data != 0)
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{
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static __aligned16 const u8 loadval[8] = { data,data,data,data,data,data,data,data };
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srcreg = _mm_loadh_pi( _mm_load_ps( (float*)loadval ), (__m64*)loadval );
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}
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else
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srcreg = _mm_setzero_ps();
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float (*destxmm)[4] = (float(*)[4])dest;
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switch( MZFqwc & 0x07 )
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{
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StoreDestIdx(0x07);
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StoreDestIdx(0x06);
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StoreDestIdx(0x05);
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StoreDestIdx(0x04);
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StoreDestIdx(0x03);
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StoreDestIdx(0x02);
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StoreDestIdx(0x01);
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}
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destxmm += (MZFqwc & 0x07);
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for( uint i=0; i<MZFqwc / 8; ++i, destxmm+=8 )
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{
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_mm_store_ps(&destxmm[0][0], srcreg);
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_mm_store_ps(&destxmm[1][0], srcreg);
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_mm_store_ps(&destxmm[2][0], srcreg);
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_mm_store_ps(&destxmm[3][0], srcreg);
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_mm_store_ps(&destxmm[4][0], srcreg);
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_mm_store_ps(&destxmm[5][0], srcreg);
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_mm_store_ps(&destxmm[6][0], srcreg);
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_mm_store_ps(&destxmm[7][0], srcreg);
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}
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};
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static __fi void memzero_sse_a( void* dest, const size_t size )
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{
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memset_sse_a<0>( dest, size );
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}
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#undef StoreDestIdx
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template< u8 data, typename T >
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__noinline void memset_sse_a( T& dest )
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{
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C_ASSERT( (sizeof(dest) & 0xf) == 0 );
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memset_sse_a<data>( &dest, sizeof(dest) );
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}
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template< typename T >
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void memzero_sse_a( T& dest )
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{
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C_ASSERT( (sizeof(dest) & 0xf) == 0 );
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memset_sse_a<0>( &dest, sizeof(dest) );
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}
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