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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 SSE_TYPE SSE (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_SSE(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, SSE_TYPE)
#define V_PAVGB2(mmr1, mmr2, mmrw, smask, ssetyp) V_PAVGB3(mmr1, mmr2, mmrw, smask, ssetyp)
#define V_PAVGB3(mmr1, mmr2, mmrw, smask, ssetyp) V_PAVGB_##ssetyp(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_SSE(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, SSE_TYPE)
#define V_PMAXUB2(mmr1, mmr2, ssetyp) V_PMAXUB3(mmr1, mmr2, ssetyp)
#define V_PMAXUB3(mmr1, mmr2, ssetyp) V_PMAXUB_##ssetyp(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_SSE(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, SSE_TYPE)
#define V_PMINUB2(mmr1, mmr2, mmrw, ssetyp) V_PMINUB3(mmr1, mmr2, mmrw, ssetyp)
#define V_PMINUB3(mmr1, mmr2, mmrw, ssetyp) V_PMINUB_##ssetyp(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_SSE(mmr1, mmr2) "movntq " mmr2 ", " mmr1 "\n\t"
#define V_MOVNTQ(mmr1, mmr2) V_MOVNTQ2(mmr1, mmr2, SSE_TYPE)
#define V_MOVNTQ2(mmr1, mmr2, ssetyp) V_MOVNTQ3(mmr1, mmr2, ssetyp)
#define V_MOVNTQ3(mmr1, mmr2, ssetyp) V_MOVNTQ_##ssetyp(mmr1, mmr2)
// end of macros
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