"movq %%mm3, %%mm0			\n\t" "psrlq $32, %%mm3			\n\t" PMAXW(%%mm0, %%mm3) "movq %%mm3, %%mm0			\n\t" "psrlq $16, %%mm3			\n\t" PMAXW(%%mm0, %%mm3)
PMAX(%%mm3, %%mm0)
static int RENAME(dct_quantize)(MpegEncContext *s,                            DCTELEM *block, int n,                            int qscale, int *overflow){    long last_non_zero_p1;    int level=0, q; //=0 is cuz gcc says uninitalized ...    const uint16_t *qmat, *bias;    __align8 int16_t temp_block[64];        assert((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?    //s->fdct (block);    RENAMEl(ff_fdct) (block); //cant be anything else ...    if(s->dct_error_sum)        s->denoise_dct(s, block);    if (s->mb_intra) {        int dummy;        if (n < 4)            q = s->y_dc_scale;        else            q = s->c_dc_scale;        /* note: block[0] is assumed to be positive */        if (!s->h263_aic) {#if 1        asm volatile (        	"mul %%ecx		\n\t"        	: "=d" (level), "=a"(dummy)        	: "a" ((block[0]>>2) + q), "c" (inverse[q<<1])        );#else        asm volatile (        	"xorl %%edx, %%edx	\n\t"        	"divw %%cx		\n\t"        	"movzwl %%ax, %%eax	\n\t"        	: "=a" (level)        	: "a" ((block[0]>>2) + q), "c" (q<<1)        	: "%edx"        );#endif        } else            /* For AIC we skip quant/dequant of INTRADC */            level = (block[0] + 4)>>3;                    block[0]=0; //avoid fake overflow//        temp_block[0] = (block[0] + (q >> 1)) / q;        last_non_zero_p1 = 1;        bias = s->q_intra_matrix16[qscale][1];        qmat = s->q_intra_matrix16[qscale][0];    } else {        last_non_zero_p1 = 0;        bias = s->q_inter_matrix16[qscale][1];        qmat = s->q_inter_matrix16[qscale][0];    }    if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){            asm volatile(            "movd %%"REG_a", %%mm3		\n\t" // last_non_zero_p1            SPREADW(%%mm3)            "pxor %%mm7, %%mm7			\n\t" // 0            "pxor %%mm4, %%mm4			\n\t" // 0            "movq (%2), %%mm5			\n\t" // qmat[0]            "pxor %%mm6, %%mm6			\n\t"            "psubw (%3), %%mm6			\n\t" // -bias[0]            "mov $-128, %%"REG_a"		\n\t"            ".balign 16				\n\t"            "1:					\n\t"            "pxor %%mm1, %%mm1			\n\t" // 0            "movq (%1, %%"REG_a"), %%mm0	\n\t" // block[i]            "pcmpgtw %%mm0, %%mm1		\n\t" // block[i] <= 0 ? 0xFF : 0x00            "pxor %%mm1, %%mm0			\n\t"             "psubw %%mm1, %%mm0			\n\t" // ABS(block[i])            "psubusw %%mm6, %%mm0		\n\t" // ABS(block[i]) + bias[0]            "pmulhw %%mm5, %%mm0		\n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16            "por %%mm0, %%mm4			\n\t"             "pxor %%mm1, %%mm0			\n\t"             "psubw %%mm1, %%mm0			\n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])            "movq %%mm0, (%5, %%"REG_a")	\n\t"            "pcmpeqw %%mm7, %%mm0		\n\t" // out==0 ? 0xFF : 0x00            "movq (%4, %%"REG_a"), %%mm1	\n\t"             "movq %%mm7, (%1, %%"REG_a")	\n\t" // 0            "pandn %%mm1, %%mm0			\n\t"	    PMAXW(%%mm0, %%mm3)            "add $8, %%"REG_a"			\n\t"            " js 1b				\n\t"            "movq %%mm3, %%mm0			\n\t"            "psrlq $32, %%mm3			\n\t"	    PMAXW(%%mm0, %%mm3)            "movq %%mm3, %%mm0			\n\t"            "psrlq $16, %%mm3			\n\t"	    PMAXW(%%mm0, %%mm3)            "movd %%mm3, %%"REG_a"		\n\t"            "movzb %%al, %%"REG_a"		\n\t" // last_non_zero_p1	    : "+a" (last_non_zero_p1)            : "r" (block+64), "r" (qmat), "r" (bias),              "r" (inv_zigzag_direct16+64), "r" (temp_block+64)        );        // note the asm is split cuz gcc doesnt like that many operands ...        asm volatile(            "movd %1, %%mm1			\n\t" // max_qcoeff	    SPREADW(%%mm1)            "psubusw %%mm1, %%mm4		\n\t"             "packuswb %%mm4, %%mm4		\n\t"            "movd %%mm4, %0			\n\t" // *overflow        : "=g" (*overflow)        : "g" (s->max_qcoeff)        );    }else{ // FMT_H263        asm volatile(            "movd %%"REG_a", %%mm3		\n\t" // last_non_zero_p1            SPREADW(%%mm3)            "pxor %%mm7, %%mm7			\n\t" // 0            "pxor %%mm4, %%mm4			\n\t" // 0            "mov $-128, %%"REG_a"		\n\t"            ".balign 16				\n\t"            "1:					\n\t"            "pxor %%mm1, %%mm1			\n\t" // 0            "movq (%1, %%"REG_a"), %%mm0	\n\t" // block[i]            "pcmpgtw %%mm0, %%mm1		\n\t" // block[i] <= 0 ? 0xFF : 0x00            "pxor %%mm1, %%mm0			\n\t"             "psubw %%mm1, %%mm0			\n\t" // ABS(block[i])            "movq (%3, %%"REG_a"), %%mm6	\n\t" // bias[0]            "paddusw %%mm6, %%mm0		\n\t" // ABS(block[i]) + bias[0]            "movq (%2, %%"REG_a"), %%mm5		\n\t" // qmat[i]            "pmulhw %%mm5, %%mm0		\n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16            "por %%mm0, %%mm4			\n\t"             "pxor %%mm1, %%mm0			\n\t"             "psubw %%mm1, %%mm0			\n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])            "movq %%mm0, (%5, %%"REG_a")	\n\t"            "pcmpeqw %%mm7, %%mm0		\n\t" // out==0 ? 0xFF : 0x00            "movq (%4, %%"REG_a"), %%mm1		\n\t"             "movq %%mm7, (%1, %%"REG_a")		\n\t" // 0            "pandn %%mm1, %%mm0			\n\t"	    PMAXW(%%mm0, %%mm3)            "add $8, %%"REG_a"			\n\t"            " js 1b				\n\t"            "movq %%mm3, %%mm0			\n\t"            "psrlq $32, %%mm3			\n\t"	    PMAXW(%%mm0, %%mm3)            "movq %%mm3, %%mm0			\n\t"            "psrlq $16, %%mm3			\n\t"	    PMAXW(%%mm0, %%mm3)            "movd %%mm3, %%"REG_a"		\n\t"            "movzb %%al, %%"REG_a"		\n\t" // last_non_zero_p1	    : "+a" (last_non_zero_p1)            : "r" (block+64), "r" (qmat+64), "r" (bias+64),              "r" (inv_zigzag_direct16+64), "r" (temp_block+64)        );        // note the asm is split cuz gcc doesnt like that many operands ...        asm volatile(            "movd %1, %%mm1			\n\t" // max_qcoeff	    SPREADW(%%mm1)            "psubusw %%mm1, %%mm4		\n\t"             "packuswb %%mm4, %%mm4		\n\t"            "movd %%mm4, %0			\n\t" // *overflow        : "=g" (*overflow)        : "g" (s->max_qcoeff)        );    }    if(s->mb_intra) block[0]= level;    else            block[0]= temp_block[0];    if(s->dsp.idct_permutation_type == FF_SIMPLE_IDCT_PERM){        if(last_non_zero_p1 <= 1) goto end;        block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];         block[0x20] = temp_block[0x10];         if(last_non_zero_p1 <= 4) goto end;        block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];         block[0x09] = temp_block[0x03];         if(last_non_zero_p1 <= 7) goto end;        block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];         block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];         if(last_non_zero_p1 <= 11) goto end;        block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];         block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];         block[0x0C] = temp_block[0x05];         if(last_non_zero_p1 <= 16) goto end;        block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];         block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];         block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];         block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];         if(last_non_zero_p1 <= 24) goto end;        block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];         block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];         block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];         block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];         if(last_non_zero_p1 <= 32) goto end;        block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];         block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];         block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];         block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];         if(last_non_zero_p1 <= 40) goto end;        block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];         block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];         block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];         block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];         if(last_non_zero_p1 <= 48) goto end;        block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];         block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];         block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];         block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];         if(last_non_zero_p1 <= 56) goto end;        block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];         block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];         block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];         block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];    }else if(s->dsp.idct_permutation_type == FF_LIBMPEG2_IDCT_PERM){        if(last_non_zero_p1 <= 1) goto end;        block[0x04] = temp_block[0x01];         block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];         if(last_non_zero_p1 <= 4) goto end;        block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];         block[0x05] = temp_block[0x03];         if(last_non_zero_p1 <= 7) goto end;        block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];         block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];         if(last_non_zero_p1 <= 11) goto end;        block[0x1C] = temp_block[0x19];         block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];         block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];         if(last_non_zero_p1 <= 16) goto end;        block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];         block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];         block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];         block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];         if(last_non_zero_p1 <= 24) goto end;        block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];         block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];         block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];         block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];         if(last_non_zero_p1 <= 32) goto end;        block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];         block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];         block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];         block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];         if(last_non_zero_p1 <= 40) goto end;        block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];         block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];         block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];         block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];         if(last_non_zero_p1 <= 48) goto end;        block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];         block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];             block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];         block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];         if(last_non_zero_p1 <= 56) goto end;        block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];         block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];         block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];         block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];    }else{        if(last_non_zero_p1 <= 1) goto end;        block[0x01] = temp_block[0x01];         block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];         if(last_non_zero_p1 <= 4) goto end;        block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];         block[0x03] = temp_block[0x03];         if(last_non_zero_p1 <= 7) goto end;        block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11];         block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];         if(last_non_zero_p1 <= 11) goto end;        block[0x19] = temp_block[0x19];         block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B];         block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05];         if(last_non_zero_p1 <= 16) goto end;        block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13];         block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21];         block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];         block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22];         if(last_non_zero_p1 <= 24) goto end;        block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14];         block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06];         block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E];         block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C];         if(last_non_zero_p1 <= 32) goto end;        block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A];         block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38];         block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32];         block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24];         if(last_non_zero_p1 <= 40) goto end;        block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16];         block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];         block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25];         block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33];         if(last_non_zero_p1 <= 48) goto end;        block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];         block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];         block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];         block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E];         if(last_non_zero_p1 <= 56) goto end;        block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C];         block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36];         block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];         block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];    }    end:/*    for(i=0; i<last_non_zero_p1; i++)    {       int j= zigzag_direct_noperm[i];       block[block_permute_op(j)]= temp_block[j];    }*/    return last_non_zero_p1 - 1;}