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/////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2001 Tom Barry. All rights reserved.
/////////////////////////////////////////////////////////////////////////////
//
// This file is subject to the terms of the GNU General Public License as
// published by the Free Software Foundation. A copy of this license is
// included with this software distribution in the file COPYING. If you
// do not have a copy, you may obtain a copy by writing to the Free
// Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
//
// This software 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
//
/////////////////////////////////////////////////////////////////////////////
// Define a few macros for CPU dependent instructions.
// I suspect I don't really understand how the C macro preprocessor works but
// this seems to get the job done. // TRB 7/01
// BEFORE USING THESE YOU MUST SET:
// #define SIMD_TYPE MMXEXT (or MMX or 3DNOW)
// some macros for pavgb instruction
// V_PAVGB(mmr1, mmr2, mmr work register, smask) mmr2 may = mmrw if you can trash it
#define V_PAVGB_MMX(mmr1, mmr2, mmrw, smask) \
"movq "mmr2", "mmrw"\n\t" \
"pand "smask", "mmrw"\n\t" \
"psrlw $1, "mmrw"\n\t" \
"pand "smask", "mmr1"\n\t" \
"psrlw $1, "mmr1"\n\t" \
"paddusb "mmrw", "mmr1"\n\t"
#define V_PAVGB_MMXEXT(mmr1, mmr2, mmrw, smask) "pavgb "mmr2", "mmr1"\n\t"
#define V_PAVGB_3DNOW(mmr1, mmr2, mmrw, smask) "pavgusb "mmr2", "mmr1"\n\t"
#define V_PAVGB(mmr1, mmr2, mmrw, smask) V_PAVGB2(mmr1, mmr2, mmrw, smask, SIMD_TYPE)
#define V_PAVGB2(mmr1, mmr2, mmrw, smask, simd_type) V_PAVGB3(mmr1, mmr2, mmrw, smask, simd_type)
#define V_PAVGB3(mmr1, mmr2, mmrw, smask, simd_type) V_PAVGB_##simd_type(mmr1, mmr2, mmrw, smask)
// some macros for pmaxub instruction
#define V_PMAXUB_MMX(mmr1, mmr2) \
"psubusb "mmr2", "mmr1"\n\t" \
"paddusb "mmr2", "mmr1"\n\t"
#define V_PMAXUB_MMXEXT(mmr1, mmr2) "pmaxub "mmr2", "mmr1"\n\t"
#define V_PMAXUB_3DNOW(mmr1, mmr2) V_PMAXUB_MMX(mmr1, mmr2) // use MMX version
#define V_PMAXUB(mmr1, mmr2) V_PMAXUB2(mmr1, mmr2, SIMD_TYPE)
#define V_PMAXUB2(mmr1, mmr2, simd_type) V_PMAXUB3(mmr1, mmr2, simd_type)
#define V_PMAXUB3(mmr1, mmr2, simd_type) V_PMAXUB_##simd_type(mmr1, mmr2)
// some macros for pminub instruction
// V_PMINUB(mmr1, mmr2, mmr work register) mmr2 may NOT = mmrw
#define V_PMINUB_MMX(mmr1, mmr2, mmrw) \
"pcmpeqb "mmrw", "mmrw"\n\t" \
"psubusb "mmr2", "mmrw"\n\t" \
"paddusb "mmrw", "mmr1"\n\t" \
"psubusb "mmrw", "mmr1"\n\t"
#define V_PMINUB_MMXEXT(mmr1, mmr2, mmrw) "pminub "mmr2", "mmr1"\n\t"
#define V_PMINUB_3DNOW(mmr1, mmr2, mmrw) V_PMINUB_MMX(mmr1, mmr2, mmrw) // use MMX version
#define V_PMINUB(mmr1, mmr2, mmrw) V_PMINUB2(mmr1, mmr2, mmrw, SIMD_TYPE)
#define V_PMINUB2(mmr1, mmr2, mmrw, simd_type) V_PMINUB3(mmr1, mmr2, mmrw, simd_type)
#define V_PMINUB3(mmr1, mmr2, mmrw, simd_type) V_PMINUB_##simd_type(mmr1, mmr2, mmrw)
// some macros for movntq instruction
// V_MOVNTQ(mmr1, mmr2)
#define V_MOVNTQ_MMX(mmr1, mmr2) "movq "mmr2", "mmr1"\n\t"
#define V_MOVNTQ_3DNOW(mmr1, mmr2) "movq "mmr2", "mmr1"\n\t"
#define V_MOVNTQ_MMXEXT(mmr1, mmr2) "movntq "mmr2", "mmr1"\n\t"
#define V_MOVNTQ(mmr1, mmr2) V_MOVNTQ2(mmr1, mmr2, SIMD_TYPE)
#define V_MOVNTQ2(mmr1, mmr2, simd_type) V_MOVNTQ3(mmr1, mmr2, simd_type)
#define V_MOVNTQ3(mmr1, mmr2, simd_type) V_MOVNTQ_##simd_type(mmr1, mmr2)
// end of macros
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