| 1 |
2 |
kdv |
/*
|
| 2 |
|
|
* the input data is tranposed and each 16 bit element in the 8x8 matrix
|
| 3 |
|
|
* is left aligned:
|
| 4 |
|
|
* for example in 11...1110000 format
|
| 5 |
|
|
* If the iDCT is of I macroblock then 0.5 needs to be added to the;DC Component
|
| 6 |
|
|
* (element[0][0] of the matrix)
|
| 7 |
|
|
*/
|
| 8 |
|
|
|
| 9 |
|
|
.data
|
| 10 |
|
|
.align 16
|
| 11 |
|
|
.type preSC,@object
|
| 12 |
|
|
preSC: .short 16384,22725,21407,19266,16384,12873,8867,4520
|
| 13 |
|
|
.short 22725,31521,29692,26722,22725,17855,12299,6270
|
| 14 |
|
|
.short 21407,29692,27969,25172,21407,16819,11585,5906
|
| 15 |
|
|
.short 19266,26722,25172,22654,19266,15137,10426,5315
|
| 16 |
|
|
.short 16384,22725,21407,19266,16384,12873,8867,4520
|
| 17 |
|
|
.short 12873,17855,16819,15137,25746,20228,13933,7103
|
| 18 |
|
|
.short 17734,24598,23170,20853,17734,13933,9597,4892
|
| 19 |
|
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.short 18081,25080,23624,21261,18081,14206,9785,4988
|
| 20 |
|
|
.size preSC,128
|
| 21 |
|
|
.align 8
|
| 22 |
|
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.type x0005000200010001,@object
|
| 23 |
|
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.size x0005000200010001,8
|
| 24 |
|
|
x0005000200010001:
|
| 25 |
|
|
.long 0x00010001,0x00050002
|
| 26 |
|
|
.align 8
|
| 27 |
|
|
.type x0040000000000000,@object
|
| 28 |
|
|
.size x0040000000000000,8
|
| 29 |
|
|
x0040000000000000:
|
| 30 |
|
|
.long 0, 0x00400000
|
| 31 |
|
|
.align 8
|
| 32 |
|
|
.type x5a825a825a825a82,@object
|
| 33 |
|
|
.size x5a825a825a825a82,8
|
| 34 |
|
|
x5a825a825a825a82:
|
| 35 |
|
|
.long 0x5a825a82, 0x5a825a82
|
| 36 |
|
|
.align 8
|
| 37 |
|
|
.type x539f539f539f539f,@object
|
| 38 |
|
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.size x539f539f539f539f,8
|
| 39 |
|
|
x539f539f539f539f:
|
| 40 |
|
|
.long 0x539f539f,0x539f539f
|
| 41 |
|
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.align 8
|
| 42 |
|
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.type x4546454645464546,@object
|
| 43 |
|
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.size x4546454645464546,8
|
| 44 |
|
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x4546454645464546:
|
| 45 |
|
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.long 0x45464546,0x45464546
|
| 46 |
|
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.align 8
|
| 47 |
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.type x61f861f861f861f8,@object
|
| 48 |
|
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.size x61f861f861f861f8,8
|
| 49 |
|
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x61f861f861f861f8:
|
| 50 |
|
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.long 0x61f861f8,0x61f861f8
|
| 51 |
|
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.align 8
|
| 52 |
|
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.type scratch1,@object
|
| 53 |
|
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.size scratch1,8
|
| 54 |
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scratch1:
|
| 55 |
|
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.long 0,0
|
| 56 |
|
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.align 8
|
| 57 |
|
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.type scratch3,@object
|
| 58 |
|
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.size scratch3,8
|
| 59 |
|
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scratch3:
|
| 60 |
|
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.long 0,0
|
| 61 |
|
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.align 8
|
| 62 |
|
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.type scratch5,@object
|
| 63 |
|
|
.size scratch5,8
|
| 64 |
|
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scratch5:
|
| 65 |
|
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.long 0,0
|
| 66 |
|
|
.align 8
|
| 67 |
|
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.type scratch7,@object
|
| 68 |
|
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.size scratch7,8
|
| 69 |
|
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scratch7:
|
| 70 |
|
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.long 0,0
|
| 71 |
|
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.type x0,@object
|
| 72 |
|
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.size x0,8
|
| 73 |
|
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x0:
|
| 74 |
|
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.long 0,0
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| 75 |
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.align 8
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| 76 |
|
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.text
|
| 77 |
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.align 4
|
| 78 |
|
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.globl IDCT_mmx
|
| 79 |
|
|
.type IDCT_mmx,@function
|
| 80 |
|
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IDCT_mmx:
|
| 81 |
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pushl %ebp
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| 82 |
|
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movl %esp,%ebp
|
| 83 |
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pushl %ebx
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| 84 |
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pushl %ecx
|
| 85 |
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pushl %edx
|
| 86 |
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pushl %esi
|
| 87 |
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pushl %edi
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| 88 |
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leal preSC, %ecx
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| 89 |
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movl 8(%ebp),%esi /* source matrix */
|
| 90 |
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movq (%esi), %mm0
|
| 91 |
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movq 8(%esi), %mm1
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| 92 |
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movq 16(%esi), %mm2
|
| 93 |
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movq 24(%esi), %mm3
|
| 94 |
|
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movq 32(%esi), %mm4
|
| 95 |
|
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movq 40(%esi), %mm5
|
| 96 |
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movq 48(%esi), %mm6
|
| 97 |
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movq 56(%esi), %mm7
|
| 98 |
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psllw $4, %mm0
|
| 99 |
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psllw $4, %mm1
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| 100 |
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psllw $4, %mm2
|
| 101 |
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psllw $4, %mm3
|
| 102 |
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psllw $4, %mm4
|
| 103 |
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psllw $4, %mm5
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| 104 |
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psllw $4, %mm6
|
| 105 |
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psllw $4, %mm7
|
| 106 |
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movq %mm0, (%esi)
|
| 107 |
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movq %mm1, 8(%esi)
|
| 108 |
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movq %mm2,16(%esi)
|
| 109 |
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movq %mm3,24(%esi)
|
| 110 |
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movq %mm4,32(%esi)
|
| 111 |
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movq %mm5,40(%esi)
|
| 112 |
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movq %mm6,48(%esi)
|
| 113 |
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movq %mm7,56(%esi)
|
| 114 |
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movq 64(%esi), %mm0
|
| 115 |
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movq 72(%esi), %mm1
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| 116 |
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movq 80(%esi), %mm2
|
| 117 |
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movq 88(%esi), %mm3
|
| 118 |
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movq 96(%esi), %mm4
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| 119 |
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movq 104(%esi), %mm5
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| 120 |
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movq 112(%esi), %mm6
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| 121 |
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movq 120(%esi), %mm7
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| 122 |
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psllw $4, %mm0
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| 123 |
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psllw $4, %mm1
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| 124 |
|
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psllw $4, %mm2
|
| 125 |
|
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psllw $4, %mm3
|
| 126 |
|
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psllw $4, %mm4
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| 127 |
|
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psllw $4, %mm5
|
| 128 |
|
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psllw $4, %mm6
|
| 129 |
|
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psllw $4, %mm7
|
| 130 |
|
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movq %mm0,64(%esi)
|
| 131 |
|
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movq %mm1,72(%esi)
|
| 132 |
|
|
movq %mm2,80(%esi)
|
| 133 |
|
|
movq %mm3,88(%esi)
|
| 134 |
|
|
movq %mm4,96(%esi)
|
| 135 |
|
|
movq %mm5,104(%esi)
|
| 136 |
|
|
movq %mm6,112(%esi)
|
| 137 |
|
|
movq %mm7,120(%esi)
|
| 138 |
|
|
/* column 0: even part
|
| 139 |
|
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* use V4, V12, V0, V8 to produce V22..V25
|
| 140 |
|
|
*/
|
| 141 |
|
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movq 8*12(%ecx), %mm0 /* maybe the first mul can be done together */
|
| 142 |
|
|
/* with the dequantization in iHuff module */
|
| 143 |
|
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pmulhw 8*12(%esi), %mm0 /* V12 */
|
| 144 |
|
|
movq 8*4(%ecx), %mm1
|
| 145 |
|
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pmulhw 8*4(%esi), %mm1 /* V4 */
|
| 146 |
|
|
movq (%ecx), %mm3
|
| 147 |
|
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psraw $1, %mm0 /* t64=t66 */
|
| 148 |
|
|
pmulhw (%esi), %mm3 /* V0 */
|
| 149 |
|
|
movq 8*8(%ecx), %mm5 /* duplicate V4 */
|
| 150 |
|
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movq %mm1, %mm2 /* added 11/1/96 */
|
| 151 |
|
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pmulhw 8*8(%esi),%mm5 /* V8 */
|
| 152 |
|
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psubsw %mm0, %mm1 /* V16 */
|
| 153 |
|
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pmulhw x5a825a825a825a82, %mm1 /* 23170 ->V18 */
|
| 154 |
|
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paddsw %mm0, %mm2 /* V17 */
|
| 155 |
|
|
movq %mm2, %mm0 /* duplicate V17 */
|
| 156 |
|
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psraw $1, %mm2 /* t75=t82 */
|
| 157 |
|
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psraw $2, %mm0 /* t72 */
|
| 158 |
|
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movq %mm3, %mm4 /* duplicate V0 */
|
| 159 |
|
|
paddsw %mm5, %mm3 /* V19 */
|
| 160 |
|
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psubsw %mm5, %mm4 /* V20 ;mm5 free */
|
| 161 |
|
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/* moved from the block below */
|
| 162 |
|
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movq 8*10(%ecx), %mm7
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| 163 |
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psraw $1, %mm3 /* t74=t81 */
|
| 164 |
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movq %mm3, %mm6 /* duplicate t74=t81 */
|
| 165 |
|
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psraw $2, %mm4 /* t77=t79 */
|
| 166 |
|
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psubsw %mm0, %mm1 /* V21 ; mm0 free */
|
| 167 |
|
|
paddsw %mm2, %mm3 /* V22 */
|
| 168 |
|
|
movq %mm1, %mm5 /* duplicate V21 */
|
| 169 |
|
|
paddsw %mm4, %mm1 /* V23 */
|
| 170 |
|
|
movq %mm3, 8*4(%esi) /* V22 */
|
| 171 |
|
|
psubsw %mm5, %mm4 /* V24; mm5 free */
|
| 172 |
|
|
movq %mm1, 8*12(%esi) /* V23 */
|
| 173 |
|
|
psubsw %mm2, %mm6 /* V25; mm2 free */
|
| 174 |
|
|
movq %mm4, (%esi) /* V24 */
|
| 175 |
|
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/* keep mm6 alive all along the next block */
|
| 176 |
|
|
/* movq %mm6, 8*8(%esi) V25 */
|
| 177 |
|
|
/* column 0: odd part
|
| 178 |
|
|
* use V2, V6, V10, V14 to produce V31, V39, V40, V41
|
| 179 |
|
|
*/
|
| 180 |
|
|
/* moved above: movq 8*10(%ecx), %mm7 */
|
| 181 |
|
|
|
| 182 |
|
|
pmulhw 8*10(%esi), %mm7 /* V10 */
|
| 183 |
|
|
movq 8*6(%ecx), %mm0
|
| 184 |
|
|
pmulhw 8*6(%esi), %mm0 /* V6 */
|
| 185 |
|
|
movq 8*2(%ecx), %mm5
|
| 186 |
|
|
movq %mm7, %mm3 /* duplicate V10 */
|
| 187 |
|
|
pmulhw 8*2(%esi), %mm5 /* V2 */
|
| 188 |
|
|
movq 8*14(%ecx), %mm4
|
| 189 |
|
|
psubsw %mm0, %mm7 /* V26 */
|
| 190 |
|
|
pmulhw 8*14(%esi), %mm4 /* V14 */
|
| 191 |
|
|
paddsw %mm0, %mm3 /* V29 ; free mm0 */
|
| 192 |
|
|
movq %mm7, %mm1 /* duplicate V26 */
|
| 193 |
|
|
psraw $1, %mm3 /* t91=t94 */
|
| 194 |
|
|
pmulhw x539f539f539f539f,%mm7 /* V33 */
|
| 195 |
|
|
psraw $1, %mm1 /* t96 */
|
| 196 |
|
|
movq %mm5, %mm0 /* duplicate V2 */
|
| 197 |
|
|
psraw $2, %mm4 /* t85=t87 */
|
| 198 |
|
|
paddsw %mm4,%mm5 /* V27 */
|
| 199 |
|
|
psubsw %mm4, %mm0 /* V28 ; free mm4 */
|
| 200 |
|
|
movq %mm0, %mm2 /* duplicate V28 */
|
| 201 |
|
|
psraw $1, %mm5 /* t90=t93 */
|
| 202 |
|
|
pmulhw x4546454645464546,%mm0 /* V35 */
|
| 203 |
|
|
psraw $1, %mm2 /* t97 */
|
| 204 |
|
|
movq %mm5, %mm4 /* duplicate t90=t93 */
|
| 205 |
|
|
psubsw %mm2, %mm1 /* V32 ; free mm2 */
|
| 206 |
|
|
pmulhw x61f861f861f861f8,%mm1 /* V36 */
|
| 207 |
|
|
psllw $1, %mm7 /* t107 */
|
| 208 |
|
|
paddsw %mm3, %mm5 /* V31 */
|
| 209 |
|
|
psubsw %mm3, %mm4 /* V30 ; free mm3 */
|
| 210 |
|
|
pmulhw x5a825a825a825a82,%mm4 /* V34 */
|
| 211 |
|
|
nop
|
| 212 |
|
|
psubsw %mm1, %mm0 /* V38 */
|
| 213 |
|
|
psubsw %mm7, %mm1 /* V37 ; free mm7 */
|
| 214 |
|
|
psllw $1, %mm1 /* t114 */
|
| 215 |
|
|
/* move from the next block */
|
| 216 |
|
|
movq %mm6, %mm3 /* duplicate V25 */
|
| 217 |
|
|
/* move from the next block */
|
| 218 |
|
|
movq 8*4(%esi), %mm7 /* V22 */
|
| 219 |
|
|
psllw $1, %mm0 /* t110 */
|
| 220 |
|
|
psubsw %mm5, %mm0 /* V39 (mm5 needed for next block) */
|
| 221 |
|
|
psllw $2, %mm4 /* t112 */
|
| 222 |
|
|
/* moved from the next block */
|
| 223 |
|
|
movq 8*12(%esi), %mm2 /* V23 */
|
| 224 |
|
|
psubsw %mm0, %mm4 /* V40 */
|
| 225 |
|
|
paddsw %mm4, %mm1 /* V41; free mm0 */
|
| 226 |
|
|
/* moved from the next block */
|
| 227 |
|
|
psllw $1, %mm2 /* t117=t125 */
|
| 228 |
|
|
/* column 0: output butterfly */
|
| 229 |
|
|
/* moved above:
|
| 230 |
|
|
* movq %mm6, %mm3 duplicate V25
|
| 231 |
|
|
* movq 8*4(%esi), %mm7 V22
|
| 232 |
|
|
* movq 8*12(%esi), %mm2 V23
|
| 233 |
|
|
* psllw $1, %mm2 t117=t125
|
| 234 |
|
|
*/
|
| 235 |
|
|
psubsw %mm1, %mm6 /* tm6 */
|
| 236 |
|
|
paddsw %mm1, %mm3 /* tm8; free mm1 */
|
| 237 |
|
|
movq %mm7, %mm1 /* duplicate V22 */
|
| 238 |
|
|
paddsw %mm5, %mm7 /* tm0 */
|
| 239 |
|
|
movq %mm3, 8*8(%esi) /* tm8; free mm3 */
|
| 240 |
|
|
psubsw %mm5, %mm1 /* tm14; free mm5 */
|
| 241 |
|
|
movq %mm6, 8*6(%esi) /* tm6; free mm6 */
|
| 242 |
|
|
movq %mm2, %mm3 /* duplicate t117=t125 */
|
| 243 |
|
|
movq (%esi), %mm6 /* V24 */
|
| 244 |
|
|
paddsw %mm0, %mm2 /* tm2 */
|
| 245 |
|
|
movq %mm7, (%esi) /* tm0; free mm7 */
|
| 246 |
|
|
psubsw %mm0, %mm3 /* tm12; free mm0 */
|
| 247 |
|
|
movq %mm1, 8*14(%esi) /* tm14; free mm1 */
|
| 248 |
|
|
psllw $1, %mm6 /* t119=t123 */
|
| 249 |
|
|
movq %mm2, 8*2(%esi) /* tm2; free mm2 */
|
| 250 |
|
|
movq %mm6, %mm0 /* duplicate t119=t123 */
|
| 251 |
|
|
movq %mm3, 8*12(%esi) /* tm12; free mm3 */
|
| 252 |
|
|
paddsw %mm4, %mm6 /* tm4 */
|
| 253 |
|
|
/* moved from next block */
|
| 254 |
|
|
movq 8*5(%ecx), %mm1
|
| 255 |
|
|
psubsw %mm4, %mm0 /* tm10; free mm4 */
|
| 256 |
|
|
/* moved from next block */
|
| 257 |
|
|
pmulhw 8*5(%esi), %mm1 /* V5 */
|
| 258 |
|
|
movq %mm6, 8*4(%esi) /* tm4; free mm6 */
|
| 259 |
|
|
movq %mm0, 8*10(%esi) /* tm10; free mm0 */
|
| 260 |
|
|
/* column 1: even part
|
| 261 |
|
|
* use V5, V13, V1, V9 to produce V56..V59
|
| 262 |
|
|
*/
|
| 263 |
|
|
/* moved to prev block:
|
| 264 |
|
|
* movq 8*5(%ecx), %mm1
|
| 265 |
|
|
* pmulhw 8*5(%esi), %mm1 V5
|
| 266 |
|
|
*/
|
| 267 |
|
|
movq 8*13(%ecx), %mm7
|
| 268 |
|
|
psllw $1, %mm1 /* t128=t130 */
|
| 269 |
|
|
pmulhw 8*13(%esi), %mm7 /* V13 */
|
| 270 |
|
|
movq %mm1, %mm2 /* duplicate t128=t130 */
|
| 271 |
|
|
movq 8(%ecx), %mm3
|
| 272 |
|
|
pmulhw 8(%esi), %mm3 /* V1 */
|
| 273 |
|
|
movq 8*9(%ecx), %mm5
|
| 274 |
|
|
psubsw %mm7, %mm1 /* V50 */
|
| 275 |
|
|
pmulhw 8*9(%esi), %mm5 /* V9 */
|
| 276 |
|
|
paddsw %mm7, %mm2 /* V51 */
|
| 277 |
|
|
pmulhw x5a825a825a825a82, %mm1 /* 23170 ->V52 */
|
| 278 |
|
|
movq %mm2, %mm6 /* duplicate V51 */
|
| 279 |
|
|
psraw $1, %mm2 /* t138=t144 */
|
| 280 |
|
|
movq %mm3, %mm4 /* duplicate V1 */
|
| 281 |
|
|
psraw $2, %mm6 /* t136 */
|
| 282 |
|
|
paddsw %mm5, %mm3 /* V53 */
|
| 283 |
|
|
psubsw %mm5, %mm4 /* V54 ;mm5 free */
|
| 284 |
|
|
movq %mm3, %mm7 /* duplicate V53 */
|
| 285 |
|
|
/* moved from next block */
|
| 286 |
|
|
movq 8*11(%ecx), %mm0
|
| 287 |
|
|
psraw $1, %mm4 /* t140=t142 */
|
| 288 |
|
|
psubsw %mm6, %mm1 /* V55 ; mm6 free */
|
| 289 |
|
|
paddsw %mm2, %mm3 /* V56 */
|
| 290 |
|
|
movq %mm4, %mm5 /* duplicate t140=t142 */
|
| 291 |
|
|
paddsw %mm1, %mm4 /* V57 */
|
| 292 |
|
|
movq %mm3, 8*5(%esi) /* V56 */
|
| 293 |
|
|
psubsw %mm1, %mm5 /* V58; mm1 free */
|
| 294 |
|
|
movq %mm4, 8*13(%esi) /* V57 */
|
| 295 |
|
|
psubsw %mm2, %mm7 /* V59; mm2 free */
|
| 296 |
|
|
movq %mm5, 8*9(%esi) /* V58 */
|
| 297 |
|
|
/* keep mm7 alive all along the next block
|
| 298 |
|
|
* movq %mm7, 8(%esi) V59
|
| 299 |
|
|
* moved above
|
| 300 |
|
|
* movq 8*11(%ecx), %mm0
|
| 301 |
|
|
*/
|
| 302 |
|
|
pmulhw 8*11(%esi), %mm0 /* V11 */
|
| 303 |
|
|
movq 8*7(%ecx), %mm6
|
| 304 |
|
|
pmulhw 8*7(%esi), %mm6 /* V7 */
|
| 305 |
|
|
movq 8*15(%ecx), %mm4
|
| 306 |
|
|
movq %mm0, %mm3 /* duplicate V11 */
|
| 307 |
|
|
pmulhw 8*15(%esi), %mm4 /* V15 */
|
| 308 |
|
|
movq 8*3(%ecx), %mm5
|
| 309 |
|
|
psllw $1, %mm6 /* t146=t152 */
|
| 310 |
|
|
pmulhw 8*3(%esi), %mm5 /* V3 */
|
| 311 |
|
|
paddsw %mm6, %mm0 /* V63 */
|
| 312 |
|
|
/* note that V15 computation has a correction step:
|
| 313 |
|
|
* this is a 'magic' constant that rebiases the results to be closer to the
|
| 314 |
|
|
* expected result. this magic constant can be refined to reduce the error
|
| 315 |
|
|
* even more by doing the correction step in a later stage when the number
|
| 316 |
|
|
* is actually multiplied by 16
|
| 317 |
|
|
*/
|
| 318 |
|
|
paddw x0005000200010001, %mm4
|
| 319 |
|
|
psubsw %mm6, %mm3 /* V60 ; free mm6 */
|
| 320 |
|
|
psraw $1, %mm0 /* t154=t156 */
|
| 321 |
|
|
movq %mm3, %mm1 /* duplicate V60 */
|
| 322 |
|
|
pmulhw x539f539f539f539f, %mm1 /* V67 */
|
| 323 |
|
|
movq %mm5, %mm6 /* duplicate V3 */
|
| 324 |
|
|
psraw $2, %mm4 /* t148=t150 */
|
| 325 |
|
|
paddsw %mm4, %mm5 /* V61 */
|
| 326 |
|
|
psubsw %mm4, %mm6 /* V62 ; free mm4 */
|
| 327 |
|
|
movq %mm5, %mm4 /* duplicate V61 */
|
| 328 |
|
|
psllw $1, %mm1 /* t169 */
|
| 329 |
|
|
paddsw %mm0, %mm5 /* V65 -> result */
|
| 330 |
|
|
psubsw %mm0, %mm4 /* V64 ; free mm0 */
|
| 331 |
|
|
pmulhw x5a825a825a825a82, %mm4 /* V68 */
|
| 332 |
|
|
psraw $1, %mm3 /* t158 */
|
| 333 |
|
|
psubsw %mm6, %mm3 /* V66 */
|
| 334 |
|
|
movq %mm5, %mm2 /* duplicate V65 */
|
| 335 |
|
|
pmulhw x61f861f861f861f8, %mm3 /* V70 */
|
| 336 |
|
|
psllw $1, %mm6 /* t165 */
|
| 337 |
|
|
pmulhw x4546454645464546, %mm6 /* V69 */
|
| 338 |
|
|
psraw $1, %mm2 /* t172 */
|
| 339 |
|
|
/* moved from next block */
|
| 340 |
|
|
movq 8*5(%esi), %mm0 /* V56 */
|
| 341 |
|
|
psllw $1, %mm4 /* t174 */
|
| 342 |
|
|
/* moved from next block */
|
| 343 |
|
|
psraw $1, %mm0 /* t177=t188 */
|
| 344 |
|
|
nop
|
| 345 |
|
|
psubsw %mm3, %mm6 /* V72 */
|
| 346 |
|
|
psubsw %mm1, %mm3 /* V71 ; free mm1 */
|
| 347 |
|
|
psubsw %mm2, %mm6 /* V73 ; free mm2 */
|
| 348 |
|
|
/* moved from next block */
|
| 349 |
|
|
psraw $1, %mm5 /* t178=t189 */
|
| 350 |
|
|
psubsw %mm6, %mm4 /* V74 */
|
| 351 |
|
|
/* moved from next block */
|
| 352 |
|
|
movq %mm0, %mm1 /* duplicate t177=t188 */
|
| 353 |
|
|
paddsw %mm4, %mm3 /* V75 */
|
| 354 |
|
|
/* moved from next block */
|
| 355 |
|
|
paddsw %mm5, %mm0 /* tm1 */
|
| 356 |
|
|
/* location
|
| 357 |
|
|
* 5 - V56
|
| 358 |
|
|
* 13 - V57
|
| 359 |
|
|
* 9 - V58
|
| 360 |
|
|
* X - V59, mm7
|
| 361 |
|
|
* X - V65, mm5
|
| 362 |
|
|
* X - V73, mm6
|
| 363 |
|
|
* X - V74, mm4
|
| 364 |
|
|
* X - V75, mm3
|
| 365 |
|
|
* free mm0, mm1 & mm2
|
| 366 |
|
|
* moved above
|
| 367 |
|
|
* movq 8*5(%esi), %mm0 V56
|
| 368 |
|
|
* psllw $1, %mm0 t177=t188 ! new !!
|
| 369 |
|
|
* psllw $1, %mm5 t178=t189 ! new !!
|
| 370 |
|
|
* movq %mm0, %mm1 duplicate t177=t188
|
| 371 |
|
|
* paddsw %mm5, %mm0 tm1
|
| 372 |
|
|
*/
|
| 373 |
|
|
movq 8*13(%esi), %mm2 /* V57 */
|
| 374 |
|
|
psubsw %mm5, %mm1 /* tm15; free mm5 */
|
| 375 |
|
|
movq %mm0, 8(%esi) /* tm1; free mm0 */
|
| 376 |
|
|
psraw $1, %mm7 /* t182=t184 ! new !! */
|
| 377 |
|
|
/* save the store as used directly in the transpose
|
| 378 |
|
|
* movq %mm1, 120(%esi) tm15; free mm1
|
| 379 |
|
|
*/
|
| 380 |
|
|
movq %mm7, %mm5 /* duplicate t182=t184 */
|
| 381 |
|
|
psubsw %mm3, %mm7 /* tm7 */
|
| 382 |
|
|
paddsw %mm3, %mm5 /* tm9; free mm3 */
|
| 383 |
|
|
movq 8*9(%esi), %mm0 /* V58 */
|
| 384 |
|
|
movq %mm2, %mm3 /* duplicate V57 */
|
| 385 |
|
|
movq %mm7, 8*7(%esi) /* tm7; free mm7 */
|
| 386 |
|
|
psubsw %mm6, %mm3 /* tm13 */
|
| 387 |
|
|
paddsw %mm6, %mm2 /* tm3 ; free mm6 */
|
| 388 |
|
|
/* moved up from the transpose */
|
| 389 |
|
|
movq %mm3, %mm7
|
| 390 |
|
|
/* moved up from the transpose */
|
| 391 |
|
|
punpcklwd %mm1, %mm3
|
| 392 |
|
|
movq %mm0, %mm6 /* duplicate V58 */
|
| 393 |
|
|
movq %mm2, 8*3(%esi) /* tm3; free mm2 */
|
| 394 |
|
|
paddsw %mm4, %mm0 /* tm5 */
|
| 395 |
|
|
psubsw %mm4, %mm6 /* tm11; free mm4 */
|
| 396 |
|
|
/* moved up from the transpose */
|
| 397 |
|
|
punpckhwd %mm1, %mm7
|
| 398 |
|
|
movq %mm0, 8*5(%esi) /* tm5; free mm0 */
|
| 399 |
|
|
/* moved up from the transpose */
|
| 400 |
|
|
movq %mm5, %mm2
|
| 401 |
|
|
/* transpose - M4 part
|
| 402 |
|
|
* --------- ---------
|
| 403 |
|
|
* | M1 | M2 | | M1'| M3'|
|
| 404 |
|
|
* --------- --> ---------
|
| 405 |
|
|
* | M3 | M4 | | M2'| M4'|
|
| 406 |
|
|
* --------- ---------
|
| 407 |
|
|
* Two alternatives: use full mmword approach so the following code can be
|
| 408 |
|
|
* scheduled before the transpose is done without stores, or use the faster
|
| 409 |
|
|
* half mmword stores (when possible)
|
| 410 |
|
|
*/
|
| 411 |
|
|
movd %mm3, 8*9+4(%esi) /* MS part of tmt9 */
|
| 412 |
|
|
punpcklwd %mm6, %mm5
|
| 413 |
|
|
movd %mm7, 8*13+4(%esi) /* MS part of tmt13 */
|
| 414 |
|
|
punpckhwd %mm6, %mm2
|
| 415 |
|
|
movd %mm5, 8*9(%esi) /* LS part of tmt9 */
|
| 416 |
|
|
punpckhdq %mm3, %mm5 /* free mm3 */
|
| 417 |
|
|
movd %mm2, 8*13(%esi) /* LS part of tmt13 */
|
| 418 |
|
|
punpckhdq %mm7, %mm2 /* free mm7 */
|
| 419 |
|
|
/* moved up from the M3 transpose */
|
| 420 |
|
|
movq 8*8(%esi), %mm0
|
| 421 |
|
|
/* moved up from the M3 transpose */
|
| 422 |
|
|
movq 8*10(%esi), %mm1
|
| 423 |
|
|
/* moved up from the M3 transpose */
|
| 424 |
|
|
movq %mm0, %mm3
|
| 425 |
|
|
/* shuffle the rest of the data, and write it with 2 mmword writes */
|
| 426 |
|
|
movq %mm5, 8*11(%esi) /* tmt11 */
|
| 427 |
|
|
/* moved up from the M3 transpose */
|
| 428 |
|
|
punpcklwd %mm1, %mm0
|
| 429 |
|
|
movq %mm2, 8*15(%esi) /* tmt15 */
|
| 430 |
|
|
/* moved up from the M3 transpose */
|
| 431 |
|
|
punpckhwd %mm1, %mm3
|
| 432 |
|
|
/* transpose - M3 part
|
| 433 |
|
|
* moved up to previous code section
|
| 434 |
|
|
* movq 8*8(%esi), %mm0
|
| 435 |
|
|
* movq 8*10(%esi), %mm1
|
| 436 |
|
|
* movq %mm0, %mm3
|
| 437 |
|
|
* punpcklwd %mm1, %mm0
|
| 438 |
|
|
* punpckhwd %mm1, %mm3
|
| 439 |
|
|
*/
|
| 440 |
|
|
movq 8*12(%esi), %mm6
|
| 441 |
|
|
movq 8*14(%esi), %mm4
|
| 442 |
|
|
movq %mm6, %mm2
|
| 443 |
|
|
/* shuffle the data and write the lower parts of the transposed in 4 dwords */
|
| 444 |
|
|
punpcklwd %mm4, %mm6
|
| 445 |
|
|
movq %mm0, %mm1
|
| 446 |
|
|
punpckhdq %mm6, %mm1
|
| 447 |
|
|
movq %mm3, %mm7
|
| 448 |
|
|
punpckhwd %mm4, %mm2 /* free mm4 */
|
| 449 |
|
|
punpckldq %mm6, %mm0 /* free mm6 */
|
| 450 |
|
|
/* moved from next block */
|
| 451 |
|
|
movq 8*13(%esi), %mm4 /* tmt13 */
|
| 452 |
|
|
punpckldq %mm2, %mm3
|
| 453 |
|
|
punpckhdq %mm2, %mm7 /* free mm2 */
|
| 454 |
|
|
/* moved from next block */
|
| 455 |
|
|
movq %mm3, %mm5 /* duplicate tmt5 */
|
| 456 |
|
|
/* column 1: even part (after transpose)
|
| 457 |
|
|
* moved above
|
| 458 |
|
|
* movq %mm3, %mm5 duplicate tmt5
|
| 459 |
|
|
* movq 8*13(%esi), %mm4 tmt13
|
| 460 |
|
|
*/
|
| 461 |
|
|
psubsw %mm4, %mm3 /* V134 */
|
| 462 |
|
|
pmulhw x5a825a825a825a82, %mm3 /* 23170 ->V136 */
|
| 463 |
|
|
movq 8*9(%esi), %mm6 /* tmt9 */
|
| 464 |
|
|
paddsw %mm4, %mm5 /* V135 ; mm4 free */
|
| 465 |
|
|
movq %mm0, %mm4 /* duplicate tmt1 */
|
| 466 |
|
|
paddsw %mm6, %mm0 /* V137 */
|
| 467 |
|
|
psubsw %mm6, %mm4 /* V138 ; mm6 free */
|
| 468 |
|
|
psllw $2, %mm3 /* t290 */
|
| 469 |
|
|
psubsw %mm5, %mm3 /* V139 */
|
| 470 |
|
|
movq %mm0, %mm6 /* duplicate V137 */
|
| 471 |
|
|
paddsw %mm5, %mm0 /* V140 */
|
| 472 |
|
|
movq %mm4, %mm2 /* duplicate V138 */
|
| 473 |
|
|
paddsw %mm3, %mm2 /* V141 */
|
| 474 |
|
|
psubsw %mm3, %mm4 /* V142 ; mm3 free */
|
| 475 |
|
|
movq %mm0, 8*9(%esi) /* V140 */
|
| 476 |
|
|
psubsw %mm5, %mm6 /* V143 ; mm5 free */
|
| 477 |
|
|
/* moved from next block */
|
| 478 |
|
|
movq 8*11(%esi), %mm0 /* tmt11 */
|
| 479 |
|
|
movq %mm2, 8*13(%esi) /* V141 */
|
| 480 |
|
|
/* moved from next block */
|
| 481 |
|
|
movq %mm0, %mm2 /* duplicate tmt11 */
|
| 482 |
|
|
/* column 1: odd part (after transpose) */
|
| 483 |
|
|
/* moved up to the prev block
|
| 484 |
|
|
* movq 8*11(%esi), %mm0 tmt11
|
| 485 |
|
|
* movq %mm0, %mm2 duplicate tmt11
|
| 486 |
|
|
*/
|
| 487 |
|
|
movq 8*15(%esi), %mm5 /* tmt15 */
|
| 488 |
|
|
psubsw %mm7, %mm0 /* V144 */
|
| 489 |
|
|
movq %mm0, %mm3 /* duplicate V144 */
|
| 490 |
|
|
paddsw %mm7, %mm2 /* V147 ; free mm7 */
|
| 491 |
|
|
pmulhw x539f539f539f539f, %mm0 /* 21407-> V151 */
|
| 492 |
|
|
movq %mm1, %mm7 /* duplicate tmt3 */
|
| 493 |
|
|
paddsw %mm5, %mm7 /* V145 */
|
| 494 |
|
|
psubsw %mm5, %mm1 /* V146 ; free mm5 */
|
| 495 |
|
|
psubsw %mm1, %mm3 /* V150 */
|
| 496 |
|
|
movq %mm7, %mm5 /* duplicate V145 */
|
| 497 |
|
|
pmulhw x4546454645464546, %mm1 /* 17734-> V153 */
|
| 498 |
|
|
psubsw %mm2, %mm5 /* V148 */
|
| 499 |
|
|
pmulhw x61f861f861f861f8, %mm3 /* 25080-> V154 */
|
| 500 |
|
|
psllw $2, %mm0 /* t311 */
|
| 501 |
|
|
pmulhw x5a825a825a825a82, %mm5 /* 23170-> V152 */
|
| 502 |
|
|
paddsw %mm2, %mm7 /* V149 ; free mm2 */
|
| 503 |
|
|
psllw $1, %mm1 /* t313 */
|
| 504 |
|
|
nop /* without the nop - freeze here for one clock */
|
| 505 |
|
|
movq %mm3, %mm2 /* duplicate V154 */
|
| 506 |
|
|
psubsw %mm0, %mm3 /* V155 ; free mm0 */
|
| 507 |
|
|
psubsw %mm2, %mm1 /* V156 ; free mm2 */
|
| 508 |
|
|
/* moved from the next block */
|
| 509 |
|
|
movq %mm6, %mm2 /* duplicate V143 */
|
| 510 |
|
|
/* moved from the next block */
|
| 511 |
|
|
movq 8*13(%esi), %mm0 /* V141 */
|
| 512 |
|
|
psllw $1, %mm1 /* t315 */
|
| 513 |
|
|
psubsw %mm7, %mm1 /* V157 (keep V149) */
|
| 514 |
|
|
psllw $2, %mm5 /* t317 */
|
| 515 |
|
|
psubsw %mm1, %mm5 /* V158 */
|
| 516 |
|
|
psllw $1, %mm3 /* t319 */
|
| 517 |
|
|
paddsw %mm5, %mm3 /* V159 */
|
| 518 |
|
|
/* column 1: output butterfly (after transform)
|
| 519 |
|
|
* moved to the prev block
|
| 520 |
|
|
* movq %mm6, %mm2 duplicate V143
|
| 521 |
|
|
* movq 8*13(%esi), %mm0 V141
|
| 522 |
|
|
*/
|
| 523 |
|
|
psubsw %mm3, %mm2 /* V163 */
|
| 524 |
|
|
paddsw %mm3, %mm6 /* V164 ; free mm3 */
|
| 525 |
|
|
movq %mm4, %mm3 /* duplicate V142 */
|
| 526 |
|
|
psubsw %mm5, %mm4 /* V165 ; free mm5 */
|
| 527 |
|
|
movq %mm2, scratch7 /* out7 */
|
| 528 |
|
|
psraw $4, %mm6
|
| 529 |
|
|
psraw $4, %mm4
|
| 530 |
|
|
paddsw %mm5, %mm3 /* V162 */
|
| 531 |
|
|
movq 8*9(%esi), %mm2 /* V140 */
|
| 532 |
|
|
movq %mm0, %mm5 /* duplicate V141 */
|
| 533 |
|
|
/* in order not to perculate this line up,
|
| 534 |
|
|
* we read 72(%esi) very near to this location
|
| 535 |
|
|
*/
|
| 536 |
|
|
movq %mm6, 8*9(%esi) /* out9 */
|
| 537 |
|
|
paddsw %mm1, %mm0 /* V161 */
|
| 538 |
|
|
movq %mm3, scratch5 /* out5 */
|
| 539 |
|
|
psubsw %mm1, %mm5 /* V166 ; free mm1 */
|
| 540 |
|
|
movq %mm4, 8*11(%esi) /* out11 */
|
| 541 |
|
|
psraw $4, %mm5
|
| 542 |
|
|
movq %mm0, scratch3 /* out3 */
|
| 543 |
|
|
movq %mm2, %mm4 /* duplicate V140 */
|
| 544 |
|
|
movq %mm5, 8*13(%esi) /* out13 */
|
| 545 |
|
|
paddsw %mm7, %mm2 /* V160 */
|
| 546 |
|
|
/* moved from the next block */
|
| 547 |
|
|
movq 8(%esi), %mm0
|
| 548 |
|
|
psubsw %mm7, %mm4 /* V167 ; free mm7 */
|
| 549 |
|
|
/* moved from the next block */
|
| 550 |
|
|
movq 8*3(%esi), %mm7
|
| 551 |
|
|
psraw $4, %mm4
|
| 552 |
|
|
movq %mm2, scratch1 /* out1 */
|
| 553 |
|
|
/* moved from the next block */
|
| 554 |
|
|
movq %mm0, %mm1
|
| 555 |
|
|
movq %mm4, 8*15(%esi) /* out15 */
|
| 556 |
|
|
/* moved from the next block */
|
| 557 |
|
|
punpcklwd %mm7, %mm0
|
| 558 |
|
|
/* transpose - M2 parts
|
| 559 |
|
|
* moved up to the prev block
|
| 560 |
|
|
* movq 8(%esi), %mm0
|
| 561 |
|
|
* movq 8*3(%esi), %mm7
|
| 562 |
|
|
* movq %mm0, %mm1
|
| 563 |
|
|
* punpcklwd %mm7, %mm0
|
| 564 |
|
|
*/
|
| 565 |
|
|
movq 8*5(%esi), %mm5
|
| 566 |
|
|
punpckhwd %mm7, %mm1
|
| 567 |
|
|
movq 8*7(%esi), %mm4
|
| 568 |
|
|
movq %mm5, %mm3
|
| 569 |
|
|
/* shuffle the data and write the lower parts of the trasposed in 4 dwords */
|
| 570 |
|
|
movd %mm0, 8*8(%esi) /* LS part of tmt8 */
|
| 571 |
|
|
punpcklwd %mm4, %mm5
|
| 572 |
|
|
movd %mm1, 8*12(%esi) /* LS part of tmt12 */
|
| 573 |
|
|
punpckhwd %mm4, %mm3
|
| 574 |
|
|
movd %mm5, 8*8+4(%esi) /* MS part of tmt8 */
|
| 575 |
|
|
punpckhdq %mm5, %mm0 /* tmt10 */
|
| 576 |
|
|
movd %mm3, 8*12+4(%esi) /* MS part of tmt12 */
|
| 577 |
|
|
punpckhdq %mm3, %mm1 /* tmt14 */
|
| 578 |
|
|
/* transpose - M1 parts */
|
| 579 |
|
|
movq (%esi), %mm7
|
| 580 |
|
|
movq 8*2(%esi), %mm2
|
| 581 |
|
|
movq %mm7, %mm6
|
| 582 |
|
|
movq 8*4(%esi), %mm5
|
| 583 |
|
|
punpcklwd %mm2, %mm7
|
| 584 |
|
|
movq 8*6(%esi), %mm4
|
| 585 |
|
|
punpckhwd %mm2, %mm6 /* free mm2 */
|
| 586 |
|
|
movq %mm5, %mm3
|
| 587 |
|
|
punpcklwd %mm4, %mm5
|
| 588 |
|
|
punpckhwd %mm4, %mm3 /* free mm4 */
|
| 589 |
|
|
movq %mm7, %mm2
|
| 590 |
|
|
movq %mm6, %mm4
|
| 591 |
|
|
punpckldq %mm5, %mm7 /* tmt0 */
|
| 592 |
|
|
punpckhdq %mm5, %mm2 /* tmt2 ; free mm5 */
|
| 593 |
|
|
/* shuffle the rest of the data, and write it with 2 mmword writes */
|
| 594 |
|
|
punpckldq %mm3, %mm6 /* tmt4 */
|
| 595 |
|
|
/* moved from next block */
|
| 596 |
|
|
movq %mm2, %mm5 /* duplicate tmt2 */
|
| 597 |
|
|
punpckhdq %mm3, %mm4 /* tmt6 ; free mm3 */
|
| 598 |
|
|
/* moved from next block */
|
| 599 |
|
|
movq %mm0, %mm3 /* duplicate tmt10 */
|
| 600 |
|
|
/* column 0: odd part (after transpose)
|
| 601 |
|
|
*moved up to prev block
|
| 602 |
|
|
* movq %mm0, %mm3 duplicate tmt10
|
| 603 |
|
|
* movq %mm2, %mm5 duplicate tmt2
|
| 604 |
|
|
*/
|
| 605 |
|
|
psubsw %mm4, %mm0 /* V110 */
|
| 606 |
|
|
paddsw %mm4, %mm3 /* V113 ; free mm4 */
|
| 607 |
|
|
movq %mm0, %mm4 /* duplicate V110 */
|
| 608 |
|
|
paddsw %mm1, %mm2 /* V111 */
|
| 609 |
|
|
pmulhw x539f539f539f539f, %mm0 /* 21407-> V117 */
|
| 610 |
|
|
psubsw %mm1, %mm5 /* V112 ; free mm1 */
|
| 611 |
|
|
psubsw %mm5, %mm4 /* V116 */
|
| 612 |
|
|
movq %mm2, %mm1 /* duplicate V111 */
|
| 613 |
|
|
pmulhw x4546454645464546, %mm5 /* 17734-> V119 */
|
| 614 |
|
|
psubsw %mm3, %mm2 /* V114 */
|
| 615 |
|
|
pmulhw x61f861f861f861f8, %mm4 /* 25080-> V120 */
|
| 616 |
|
|
paddsw %mm3, %mm1 /* V115 ; free mm3 */
|
| 617 |
|
|
pmulhw x5a825a825a825a82, %mm2 /* 23170-> V118 */
|
| 618 |
|
|
psllw $2, %mm0 /* t266 */
|
| 619 |
|
|
movq %mm1, (%esi) /* save V115 */
|
| 620 |
|
|
psllw $1, %mm5 /* t268 */
|
| 621 |
|
|
psubsw %mm4, %mm5 /* V122 */
|
| 622 |
|
|
psubsw %mm0, %mm4 /* V121 ; free mm0 */
|
| 623 |
|
|
psllw $1, %mm5 /* t270 */
|
| 624 |
|
|
psubsw %mm1, %mm5 /* V123 ; free mm1 */
|
| 625 |
|
|
psllw $2, %mm2 /* t272 */
|
| 626 |
|
|
psubsw %mm5, %mm2 /* V124 (keep V123) */
|
| 627 |
|
|
psllw $1, %mm4 /* t274 */
|
| 628 |
|
|
movq %mm5, 8*2(%esi) /* save V123 ; free mm5 */
|
| 629 |
|
|
paddsw %mm2, %mm4 /* V125 (keep V124) */
|
| 630 |
|
|
/* column 0: even part (after transpose) */
|
| 631 |
|
|
movq 8*12(%esi), %mm0 /* tmt12 */
|
| 632 |
|
|
movq %mm6, %mm3 /* duplicate tmt4 */
|
| 633 |
|
|
psubsw %mm0, %mm6 /* V100 */
|
| 634 |
|
|
paddsw %mm0, %mm3 /* V101 ; free mm0 */
|
| 635 |
|
|
pmulhw x5a825a825a825a82, %mm6 /* 23170 ->V102 */
|
| 636 |
|
|
movq %mm7, %mm5 /* duplicate tmt0 */
|
| 637 |
|
|
movq 8*8(%esi), %mm1 /* tmt8 */
|
| 638 |
|
|
paddsw %mm1, %mm7 /* V103 */
|
| 639 |
|
|
psubsw %mm1, %mm5 /* V104 ; free mm1 */
|
| 640 |
|
|
movq %mm7, %mm0 /* duplicate V103 */
|
| 641 |
|
|
psllw $2, %mm6 /* t245 */
|
| 642 |
|
|
paddsw %mm3, %mm7 /* V106 */
|
| 643 |
|
|
movq %mm5, %mm1 /* duplicate V104 */
|
| 644 |
|
|
psubsw %mm3, %mm6 /* V105 */
|
| 645 |
|
|
psubsw %mm3, %mm0 /* V109; free mm3 */
|
| 646 |
|
|
paddsw %mm6, %mm5 /* V107 */
|
| 647 |
|
|
psubsw %mm6, %mm1 /* V108 ; free mm6 */
|
| 648 |
|
|
/* column 0: output butterfly (after transform) */
|
| 649 |
|
|
movq %mm1, %mm3 /* duplicate V108 */
|
| 650 |
|
|
paddsw %mm2, %mm1 /* out4 */
|
| 651 |
|
|
psraw $4, %mm1
|
| 652 |
|
|
psubsw %mm2, %mm3 /* out10 ; free mm2 */
|
| 653 |
|
|
psraw $4, %mm3
|
| 654 |
|
|
movq %mm0, %mm6 /* duplicate V109 */
|
| 655 |
|
|
movq %mm1, 8*4(%esi) /* out4 ; free mm1 */
|
| 656 |
|
|
psubsw %mm4, %mm0 /* out6 */
|
| 657 |
|
|
movq %mm3, 8*10(%esi) /* out10 ; free mm3 */
|
| 658 |
|
|
psraw $4, %mm0
|
| 659 |
|
|
paddsw %mm4, %mm6 /* out8 ; free mm4 */
|
| 660 |
|
|
movq %mm7, %mm1 /* duplicate V106 */
|
| 661 |
|
|
movq %mm0, 8*6(%esi) /* out6 ; free mm0 */
|
| 662 |
|
|
psraw $4, %mm6
|
| 663 |
|
|
movq (%esi), %mm4 /* V115 */
|
| 664 |
|
|
movq %mm6, 8*8(%esi) /* out8 ; free mm6 */
|
| 665 |
|
|
movq %mm5, %mm2 /* duplicate V107 */
|
| 666 |
|
|
movq 8*2(%esi), %mm3 /* V123 */
|
| 667 |
|
|
paddsw %mm4, %mm7 /* out0 */
|
| 668 |
|
|
/* moved up from next block */
|
| 669 |
|
|
movq scratch3, %mm0
|
| 670 |
|
|
psraw $4, %mm7
|
| 671 |
|
|
/* moved up from next block */
|
| 672 |
|
|
movq scratch5, %mm6
|
| 673 |
|
|
psubsw %mm4, %mm1 /* out14 ; free mm4 */
|
| 674 |
|
|
paddsw %mm3, %mm5 /* out2 */
|
| 675 |
|
|
psraw $4, %mm1
|
| 676 |
|
|
movq %mm7, (%esi) /* out0 ; free mm7 */
|
| 677 |
|
|
psraw $4, %mm5
|
| 678 |
|
|
movq %mm1, 8*14(%esi) /* out14 ; free mm1 */
|
| 679 |
|
|
psubsw %mm3, %mm2 /* out12 ; free mm3 */
|
| 680 |
|
|
movq %mm5, 8*2(%esi) /* out2 ; free mm5 */
|
| 681 |
|
|
psraw $4, %mm2
|
| 682 |
|
|
/* moved up to the prev block */
|
| 683 |
|
|
movq scratch7, %mm4
|
| 684 |
|
|
/* moved up to the prev block */
|
| 685 |
|
|
psraw $4, %mm0
|
| 686 |
|
|
movq %mm2, 8*12(%esi) /* out12 ; free mm2 */
|
| 687 |
|
|
/* moved up to the prev block */
|
| 688 |
|
|
psraw $4, %mm6
|
| 689 |
|
|
/* move back the data to its correct place
|
| 690 |
|
|
* moved up to the prev block
|
| 691 |
|
|
* movq scratch3, %mm0
|
| 692 |
|
|
* movq scratch5, %mm6
|
| 693 |
|
|
* movq scratch7, %mm4
|
| 694 |
|
|
* psraw $4, %mm0
|
| 695 |
|
|
* psraw $4, %mm6
|
| 696 |
|
|
*/
|
| 697 |
|
|
movq scratch1, %mm1
|
| 698 |
|
|
psraw $4, %mm4
|
| 699 |
|
|
movq %mm0, 8*3(%esi) /* out3 */
|
| 700 |
|
|
psraw $4, %mm1
|
| 701 |
|
|
movq %mm6, 8*5(%esi) /* out5 */
|
| 702 |
|
|
movq %mm4, 8*7(%esi) /* out7 */
|
| 703 |
|
|
movq %mm1, 8(%esi) /* out1 */
|
| 704 |
|
|
popl %edi
|
| 705 |
|
|
popl %esi
|
| 706 |
|
|
popl %edx
|
| 707 |
|
|
popl %ecx
|
| 708 |
|
|
popl %ebx
|
| 709 |
|
|
movl %ebp,%esp
|
| 710 |
|
|
popl %ebp
|
| 711 |
|
|
ret
|
| 712 |
|
|
.Lfe1:
|
| 713 |
|
|
.size IDCT_mmx,.Lfe1-IDCT_mmx
|
