;/****************************************************************************; *; *  XVID MPEG-4 VIDEO CODEC; *  - 3dne CBP computation -; *; *  Copyright (C) 2002 Jaan Kalda; *; *  This program is free software ; you can redistribute it and/or modify; *  it under the terms of the GNU General Public License as published by; *  the Free Software Foundation ; either version 2 of the License, or; *  (at your option) any later version.; *; *  This program 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 this program ; if not, write to the Free Software; *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA; *; * $Id$; *; ***************************************************************************/; these 3dne functions are compatible with iSSE, but are optimized; specifically for K7 pipelinesBITS 32;=============================================================================; Macros;=============================================================================%macro cglobal 1	%ifdef PREFIX		global _%1		%define %1 _%1	%else		global %1	%endif%endmacro%macro calc_cbp 1  pshufw mm0, [eax], 229 ; =11100101  movq mm1, [eax+8]  por mm0, [eax+64]  por mm1, [eax+72]  movq mm2, [eax+16]  movq mm3, [eax+24]  por mm2, [eax+80]  por mm3, [eax+88]  movq mm4, [eax+32]  movq mm5, [eax+40]  por mm4, [eax+96]  por mm5, [eax+104]  movq mm6, [eax+48]  movq mm7, [eax+56]  por mm6, [eax+112]  por mm7, [eax+120]  por mm1, mm0%if %1  sub eax, byte -128 ;ecx ;+= 128; needed 3 bytes for alignment%else  xor eax, eax  xor edx, edx%endif  por mm3, mm2  por mm5, mm4  por mm7, mm6  por mm3, mm1  por mm7, mm5  por mm7, mm3  packsswb mm7, mm7  movd [esp+%1*4], mm7%endmacro;=============================================================================; Code;=============================================================================SECTION .textcglobal calc_cbp_3dne;-----------------------------------------------------------------------------; uint32_t calc_cbp_3dne(const int16_t coeff[6*64]);;-----------------------------------------------------------------------------;AMD K7, in cache: ca 80 clkALIGN 16calc_cbp_3dne:  mov eax, [esp+ 4]	; coeff  lea esp, [esp-24]  calc_cbp 5 ;bit 5  calc_cbp 4 ;b4  calc_cbp 3 ;b3  calc_cbp 2 ;b2  calc_cbp 1 ;b1  calc_cbp 0 ;b0  cmp eax, [esp+5*4]  adc eax, eax  cmp edx, [esp+4*4]  adc eax, eax  cmp edx, [esp+3*4]  adc eax, eax  cmp edx, [esp+2*4]  adc eax, eax  cmp edx, [esp+1*4]  adc eax, eax  cmp edx, [esp+0*4]  adc eax, eax  add esp, byte 24  ret