96 lines
2.6 KiB
C++
96 lines
2.6 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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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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alignas(16) static 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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case 0x07:
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_mm_store_ps(&destxmm[0x07 - 1][0], srcreg);
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// Fall through
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case 0x06:
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_mm_store_ps(&destxmm[0x06 - 1][0], srcreg);
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// Fall through
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case 0x05:
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_mm_store_ps(&destxmm[0x05 - 1][0], srcreg);
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// Fall through
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case 0x04:
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_mm_store_ps(&destxmm[0x04 - 1][0], srcreg);
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// Fall through
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case 0x03:
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_mm_store_ps(&destxmm[0x03 - 1][0], srcreg);
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// Fall through
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case 0x02:
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_mm_store_ps(&destxmm[0x02 - 1][0], srcreg);
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// Fall through
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case 0x01:
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_mm_store_ps(&destxmm[0x01 - 1][0], srcreg);
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// Fall through
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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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template <u8 data, typename T>
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__noinline void memset_sse_a(T& dest)
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{
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static_assert((sizeof(dest) & 0xf) == 0, "Bad size for SSE memset");
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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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static_assert((sizeof(dest) & 0xf) == 0, "Bad size for SSE memset");
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memset_sse_a<0>(&dest, sizeof(dest));
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}
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