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; Code |
; Code |
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;============================================================================= |
;============================================================================= |
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SECTION .rotext align=SECTION_ALIGN |
TEXT |
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116 |
cglobal quant_mpeg_intra_mmx |
cglobal quant_mpeg_intra_mmx |
117 |
cglobal quant_mpeg_inter_mmx |
cglobal quant_mpeg_inter_mmx |
177 |
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178 |
movq mm7, [mmx_rounding] |
movq mm7, [mmx_rounding] |
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180 |
; QUANT_MMX(0) |
QUANT_MMX(0) |
181 |
; QUANT_MMX(1) |
QUANT_MMX(1) |
182 |
; QUANT_MMX(2) |
QUANT_MMX(2) |
183 |
; QUANT_MMX(3) |
QUANT_MMX(3) |
184 |
; QUANT_MMX(4) |
QUANT_MMX(4) |
185 |
; QUANT_MMX(5) |
QUANT_MMX(5) |
186 |
; QUANT_MMX(6) |
QUANT_MMX(6) |
187 |
; QUANT_MMX(7) |
QUANT_MMX(7) |
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; calculate DC |
; calculate DC |
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; movsx _EAX, word [_EAX] ; data[0] |
XVID_MOVSX _EAX, word [_EAX] ; data[0] |
191 |
; mov TMP0, prm4 ; dcscalar |
mov TMP0, prm4 ; dcscalar |
192 |
; mov _EDX, _EAX |
mov _EDX, _EAX |
193 |
; shr TMP0, 1 ; TMP0 = dcscalar/2 |
shr TMP0, 1 ; TMP0 = dcscalar/2 |
194 |
; sar _EDX, 31 ; TMP1 = sign extend of _EAX (ready for division too) |
sar _EDX, 31 ; TMP1 = sign extend of _EAX (ready for division too) |
195 |
; xor TMP0, _EDX ; adjust TMP0 according to the sign of data[0] |
xor TMP0, _EDX ; adjust TMP0 according to the sign of data[0] |
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; sub TMP0, _EDX |
sub TMP0, _EDX |
197 |
; add _EAX, TMP0 |
add _EAX, TMP0 |
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; mov TMP0, prm4 ; dcscalar |
mov TMP0, prm4 ; dcscalar |
200 |
; idiv TMP0 ; _EAX = _EDX:_EAX / dcscalar |
idiv TMP0 ; _EAX = _EDX:_EAX / dcscalar |
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; mov _EDX, prm1 ; coeff again |
mov _EDX, prm1 ; coeff again |
203 |
; mov word [_EDX], ax ; coeff[0] = ax |
mov word [_EDX], ax ; coeff[0] = ax |
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xor _EAX, _EAX ; return(0); |
xor _EAX, _EAX ; return(0); |
206 |
ret |
ret |
445 |
mov _EBX, _EAX |
mov _EBX, _EAX |
446 |
%ifdef ARCH_IS_X86_64 |
%ifdef ARCH_IS_X86_64 |
447 |
mov _EAX, prm3 |
mov _EAX, prm3 |
448 |
lea r9, [mmx_mul_quant] |
lea prm1, [mmx_mul_quant] |
449 |
movq mm7, [r9 + _EAX*8 - 8] |
movq mm7, [prm1 + _EAX*8 - 8] |
450 |
%else |
%else |
451 |
mov _EAX, [_ESP + 4 + 12] ; quant |
mov _EAX, [_ESP + 4 + 12] ; quant |
452 |
movq mm7, [mmx_mul_quant + _EAX*8 - 8] |
movq mm7, [mmx_mul_quant + _EAX*8 - 8] |