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| 1 : | Isibaar | 1855 | // **************************************************************************** |
| 2 : | // * | ||
| 3 : | // * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | // * - IA64 forward discrete cosine transform - | ||
| 5 : | // * | ||
| 6 : | // * Copyright(C) 2002 Stephan Krause, Ingo-Marc Weber, Daniel Kallfass | ||
| 7 : | // * | ||
| 8 : | // * This program is free software; you can redistribute it and/or modify it | ||
| 9 : | // * under the terms of the GNU General Public License as published by | ||
| 10 : | // * the Free Software Foundation; either version 2 of the License, or | ||
| 11 : | // * (at your option) any later version. | ||
| 12 : | // * | ||
| 13 : | // * This program is distributed in the hope that it will be useful, | ||
| 14 : | // * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 : | // * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | // * GNU General Public License for more details. | ||
| 17 : | // * | ||
| 18 : | // * You should have received a copy of the GNU General Public License | ||
| 19 : | // * along with this program; if not, write to the Free Software | ||
| 20 : | // * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | // * | ||
| 22 : | // * $Id: fdct_ia64.s,v 1.6 2009-02-19 17:07:29 Isibaar Exp $ | ||
| 23 : | // * | ||
| 24 : | // ***************************************************************************/ | ||
| 25 : | ia64p | 302 | // |
| 26 : | Isibaar | 1855 | // **************************************************************************** |
| 27 : | // * | ||
| 28 : | // * fdct_ia64.s, IA-64 optimized forward DCT | ||
| 29 : | // * | ||
| 30 : | // * Completed version provided by Intel at AppNote AP-922 | ||
| 31 : | // * http://developer.intel.com/software/products/college/ia32/strmsimd/ | ||
| 32 : | // * Copyright (C) 1999 Intel Corporation, | ||
| 33 : | // * | ||
| 34 : | // * This version was implemented during an IA-64 practical training at | ||
| 35 : | // * the University of Karlsruhe (http://i44w3.info.uni-karlsruhe.de/) | ||
| 36 : | // * | ||
| 37 : | // ***************************************************************************** | ||
| 38 : | edgomez | 851 | // |
| 39 : | Isibaar | 1855 | // ***************************************************************************** |
| 40 : | // * | ||
| 41 : | // * Revision history: | ||
| 42 : | // * | ||
| 43 : | // * 24.07.2002 Initial Version | ||
| 44 : | // * | ||
| 45 : | // ***************************************************************************** | ||
| 46 : | ia64p | 302 | |
| 47 : | edgomez | 851 | |
| 48 : | ia64p | 302 | // This is a fast precise implementation of 8x8 Discrete Cosine Transform |
| 49 : | // published in Intel Application Note 922 from 1999 and optimized for IA-64. | ||
| 50 : | // | ||
| 51 : | // An unoptimized "straight forward" version can be found at the end of this file. | ||
| 52 : | |||
| 53 : | |||
| 54 : | .pred.safe_across_calls p1-p5,p16-p63 | ||
| 55 : | .text | ||
| 56 : | .align 16 | ||
| 57 : | .global fdct_ia64# | ||
| 58 : | .proc fdct_ia64# | ||
| 59 : | fdct_ia64: | ||
| 60 : | .prologue | ||
| 61 : | alloc r14 = ar.pfs, 1, 56, 0, 0 | ||
| 62 : | // Save constants | ||
| 63 : | mov r31 = 0x32ec // c0 = tan(1pi/16) | ||
| 64 : | mov r30 = 0x6a0a // c1 = tan(2pi/16) | ||
| 65 : | mov r29 = 0xab0e // c2 = tan(3pi/16) | ||
| 66 : | mov r28 = 0xb505 // g4 = cos(4pi/16) | ||
| 67 : | mov r27 = 0xd4db // g3 = cos(3pi/16) | ||
| 68 : | mov r26 = 0xec83 // g2 = cos(2pi/16) | ||
| 69 : | mov r25 = 0xfb15 // g1 = cos(1pi/16) | ||
| 70 : | mov r24 = 0x0002 // correction bit for descaling | ||
| 71 : | mov r23 = 0x0004 // correction bit for descaling | ||
| 72 : | |||
| 73 : | // Load Matrix into registers | ||
| 74 : | |||
| 75 : | add loc0 = r0, r32 | ||
| 76 : | add loc2 = 16, r32 | ||
| 77 : | add loc4 = 32, r32 | ||
| 78 : | add loc6 = 48, r32 | ||
| 79 : | add loc8 = 64, r32 | ||
| 80 : | add loc10 = 80, r32 | ||
| 81 : | add loc12 = 96, r32 | ||
| 82 : | add loc14 = 112, r32 | ||
| 83 : | add loc1 = 8, r32 | ||
| 84 : | add loc3 = 24, r32 | ||
| 85 : | add loc5 = 40, r32 | ||
| 86 : | add loc7 = 56, r32 | ||
| 87 : | add loc9 = 72, r32 | ||
| 88 : | add loc11 = 88, r32 | ||
| 89 : | add loc13 = 104, r32 | ||
| 90 : | add loc15 = 120, r32 | ||
| 91 : | ;; | ||
| 92 : | ld8 loc16 = [loc0] | ||
| 93 : | ld8 loc17 = [loc2] | ||
| 94 : | ld8 loc18 = [loc4] | ||
| 95 : | ld8 loc19 = [loc6] | ||
| 96 : | ld8 loc20 = [loc8] | ||
| 97 : | ld8 loc21 = [loc10] | ||
| 98 : | ld8 loc22 = [loc12] | ||
| 99 : | ld8 loc23 = [loc14] | ||
| 100 : | ld8 loc24 = [loc1] | ||
| 101 : | ld8 loc25 = [loc3] | ||
| 102 : | ld8 loc26 = [loc5] | ||
| 103 : | ld8 loc27 = [loc7] | ||
| 104 : | mux2 r26 = r26, 0x00 | ||
| 105 : | ld8 loc28 = [loc9] | ||
| 106 : | mux2 r31 = r31, 0x00 | ||
| 107 : | mux2 r25 = r25, 0x00 | ||
| 108 : | ld8 loc29 = [loc11] | ||
| 109 : | mux2 r30 = r30, 0x00 | ||
| 110 : | mux2 r29 = r29, 0x00 | ||
| 111 : | ld8 loc30 = [loc13] | ||
| 112 : | mux2 r28 = r28, 0x00 | ||
| 113 : | mux2 r27 = r27, 0x00 | ||
| 114 : | ld8 loc31 = [loc15] | ||
| 115 : | mux2 r24 = r24, 0x00 | ||
| 116 : | mux2 r23 = r23, 0x00 | ||
| 117 : | ;; | ||
| 118 : | pshl2 loc16 = loc16, 3 | ||
| 119 : | pshl2 loc17 = loc17, 3 | ||
| 120 : | pshl2 loc18 = loc18, 3 | ||
| 121 : | pshl2 loc19 = loc19, 3 | ||
| 122 : | pshl2 loc20 = loc20, 3 | ||
| 123 : | pshl2 loc21 = loc21, 3 | ||
| 124 : | pshl2 loc22 = loc22, 3 | ||
| 125 : | pshl2 loc23 = loc23, 3 | ||
| 126 : | ;; | ||
| 127 : | pshl2 loc24 = loc24, 3 | ||
| 128 : | |||
| 129 : | // ******************* | ||
| 130 : | // column-DTC 1st half | ||
| 131 : | // ******************* | ||
| 132 : | |||
| 133 : | psub2 loc37 = loc17, loc22 // t5 = x1 - x6 | ||
| 134 : | pshl2 loc25 = loc25, 3 | ||
| 135 : | pshl2 loc26 = loc26, 3 | ||
| 136 : | psub2 loc38 = loc18, loc21 // t6 = x2 - x5 | ||
| 137 : | pshl2 loc27 = loc27, 3 | ||
| 138 : | pshl2 loc28 = loc28, 3 | ||
| 139 : | ;; | ||
| 140 : | padd2 loc32 = loc16, loc23 // t0 = x0 + x7 | ||
| 141 : | pshl2 loc29 = loc29, 3 | ||
| 142 : | pshl2 loc30 = loc30, 3 | ||
| 143 : | padd2 loc33 = loc17, loc22 // t1 = x1 + x6 | ||
| 144 : | padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 145 : | psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 146 : | ;; | ||
| 147 : | padd2 loc34 = loc18, loc21 // t2 = x2 + x5 | ||
| 148 : | pshl2 loc31 = loc31, 3 | ||
| 149 : | padd2 loc35 = loc19, loc20 // t3 = x3 + x4 | ||
| 150 : | psub2 loc36 = loc16, loc23 // t4 = x0 - x7 | ||
| 151 : | pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 152 : | pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 153 : | ;; | ||
| 154 : | psub2 loc39 = loc19, loc20 // t7 = x3 - x4 | ||
| 155 : | padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 156 : | padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 157 : | |||
| 158 : | padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 159 : | padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 160 : | psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 161 : | ;; | ||
| 162 : | psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 163 : | padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 164 : | padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 165 : | psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 166 : | psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 167 : | ;; | ||
| 168 : | pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 169 : | padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 170 : | pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 171 : | pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 172 : | psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 173 : | pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 174 : | pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 175 : | ;; | ||
| 176 : | padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 177 : | pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 178 : | padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 179 : | padd2 loc34 = loc18, loc43 // t2 = x2 + (x3 * c1) | ||
| 180 : | psub2 loc35 = loc42, loc19 // t3 = (c1 * x2) - x3 | ||
| 181 : | psub2 loc37 = loc44, loc21 // t5 = (c1 * x4) - x5 | ||
| 182 : | ;; | ||
| 183 : | padd2 loc36 = loc20, loc45 // t4 = x4 + (x5 * c1) | ||
| 184 : | padd2 loc38 = loc22, loc47 // t6 = x6 + (x7 * c1) | ||
| 185 : | pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 186 : | pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 187 : | psub2 loc39 = loc46, loc23 // t7 = (c1 * x6) - x7 | ||
| 188 : | ;; | ||
| 189 : | padd2 loc48 = loc16, loc32 // y0 = x0 + t0 | ||
| 190 : | pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 191 : | pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 192 : | padd2 loc52 = loc17, loc33 // y4 = x1 + t1 | ||
| 193 : | pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 194 : | pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 195 : | ;; | ||
| 196 : | padd2 loc50 = loc18, loc34 // y2 = x2 + t2 | ||
| 197 : | pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 198 : | pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 199 : | padd2 loc55 = loc21, loc37 // y7 = x5 + t5 | ||
| 200 : | padd2 loc49 = loc20, loc36 // y1 = x4 + t4 | ||
| 201 : | padd2 loc54 = loc19, loc35 // y6 = x3 + t3 | ||
| 202 : | ;; | ||
| 203 : | padd2 loc51 = loc22, loc38 // y3 = x6 + t6 | ||
| 204 : | padd2 loc53 = loc23, loc39 // y5 = x7 + t7 | ||
| 205 : | |||
| 206 : | //divide by 4 | ||
| 207 : | |||
| 208 : | padd2 loc48 = loc48, r24 | ||
| 209 : | padd2 loc49 = loc49, r24 | ||
| 210 : | padd2 loc50 = loc50, r24 | ||
| 211 : | padd2 loc52 = loc52, r24 | ||
| 212 : | ;; | ||
| 213 : | padd2 loc51 = loc51, r24 | ||
| 214 : | pshr2 loc48 = loc48, 2 | ||
| 215 : | padd2 loc53 = loc53, r24 | ||
| 216 : | pshr2 loc49 = loc49, 2 | ||
| 217 : | padd2 loc54 = loc54, r24 | ||
| 218 : | pshr2 loc50 = loc50, 2 | ||
| 219 : | padd2 loc55 = loc55, r24 | ||
| 220 : | pshr2 loc52 = loc52, 2 | ||
| 221 : | ;; | ||
| 222 : | pshr2 loc51 = loc51, 2 | ||
| 223 : | pshr2 loc53 = loc53, 2 | ||
| 224 : | pshr2 loc54 = loc54, 2 | ||
| 225 : | pshr2 loc55 = loc55, 2 | ||
| 226 : | |||
| 227 : | |||
| 228 : | // ******************* | ||
| 229 : | // column-DTC 2nd half | ||
| 230 : | // ******************* | ||
| 231 : | |||
| 232 : | psub2 loc37 = loc25, loc30 // t5 = x1.2 - x6.2 | ||
| 233 : | psub2 loc38 = loc26, loc29 // t6 = x2.2 - x5.2 | ||
| 234 : | padd2 loc32 = loc24, loc31 // t0 = x0.2 + x7.2 | ||
| 235 : | padd2 loc33 = loc25, loc30 // t1 = x1.2 + x6.2 | ||
| 236 : | ;; | ||
| 237 : | padd2 loc34 = loc26, loc29 // t2 = x2.2 + x5.2 | ||
| 238 : | psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 239 : | padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 240 : | padd2 loc35 = loc27, loc28 // t3 = x3.2 + x4.2 | ||
| 241 : | ;; | ||
| 242 : | psub2 loc36 = loc24, loc31 // t4 = x0.2 - x7.2 | ||
| 243 : | pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 244 : | pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 245 : | ;; | ||
| 246 : | psub2 loc39 = loc27, loc28 // t7 = x3.2 - x4.2 | ||
| 247 : | padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 248 : | padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 249 : | |||
| 250 : | padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 251 : | padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 252 : | psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 253 : | ;; | ||
| 254 : | psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 255 : | padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 256 : | padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 257 : | psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 258 : | psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 259 : | ;; | ||
| 260 : | pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 261 : | padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 262 : | pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 263 : | pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 264 : | psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 265 : | pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 266 : | pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 267 : | pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 268 : | ;; | ||
| 269 : | padd2 loc34 = loc18, loc43 // t2 = x2 + buf3 | ||
| 270 : | padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 271 : | padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 272 : | psub2 loc35 = loc42, loc19 // t3 = buf2 - x3 | ||
| 273 : | padd2 loc36 = loc20, loc45 // t4 = x4 + buf5 | ||
| 274 : | pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 275 : | ;; | ||
| 276 : | psub2 loc37 = loc44, loc21 // t5 = buf4 - x5 | ||
| 277 : | padd2 loc38 = loc22, loc47 // t6 = x6 + buf7 | ||
| 278 : | psub2 loc39 = loc46, loc23 // t7 = buf6 - x7 | ||
| 279 : | pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 280 : | ;; | ||
| 281 : | padd2 loc40 = loc16, loc32 // y0.2 = x0 + t0 | ||
| 282 : | pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 283 : | pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 284 : | padd2 loc44 = loc17, loc33 // y4.2 = x1 + t1 | ||
| 285 : | pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 286 : | pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 287 : | ;; | ||
| 288 : | padd2 loc42 = loc18, loc34 // y2.2 = x2 + t2 | ||
| 289 : | pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 290 : | pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 291 : | padd2 loc47 = loc21, loc37 // y7.2 = x5 + t5 | ||
| 292 : | padd2 loc41 = loc20, loc36 // y1.2 = x4 + t4 | ||
| 293 : | padd2 loc46 = loc19, loc35 // y6.2 = x3 + t3 | ||
| 294 : | ;; | ||
| 295 : | padd2 loc43 = loc22, loc38 // y3.2 = x6 + t6 | ||
| 296 : | |||
| 297 : | // ******************* | ||
| 298 : | // transpose matrix | ||
| 299 : | // ******************* | ||
| 300 : | |||
| 301 : | mix2.r loc32 = loc48, loc49 // tmp0 = mixr y0, y1 | ||
| 302 : | mix2.l loc33 = loc48, loc49 // tmp1 = mixl y0, y1 | ||
| 303 : | padd2 loc45 = loc23, loc39 // y5.2 = x7 + t7 | ||
| 304 : | mix2.r loc34 = loc50, loc51 // tmp2 = mixr y2, y3 | ||
| 305 : | mix2.l loc35 = loc50, loc51 // tmp3 = mixl y2, y3 | ||
| 306 : | ;; | ||
| 307 : | |||
| 308 : | //divide by 4 | ||
| 309 : | |||
| 310 : | padd2 loc40 = loc40, r24 | ||
| 311 : | padd2 loc41 = loc41, r24 | ||
| 312 : | mix4.r loc16 = loc32, loc34 // x0 = mixr tmp0, tmp2 | ||
| 313 : | padd2 loc42 = loc42, r24 | ||
| 314 : | padd2 loc43 = loc43, r24 | ||
| 315 : | mix4.r loc17 = loc33, loc35 // x1 = mixr tmp1, tmp3 | ||
| 316 : | padd2 loc44 = loc44, r24 | ||
| 317 : | padd2 loc45 = loc45, r24 | ||
| 318 : | mix4.l loc18 = loc32, loc34 // x2 = mixl tmp0, tmp2 | ||
| 319 : | padd2 loc46 = loc46, r24 | ||
| 320 : | padd2 loc47 = loc47, r24 | ||
| 321 : | mix4.l loc19 = loc33, loc35 // x3 = mixl tmp1, tmp3 | ||
| 322 : | ;; | ||
| 323 : | pshr2 loc40 = loc40, 2 | ||
| 324 : | pshr2 loc41 = loc41, 2 | ||
| 325 : | pshr2 loc42 = loc42, 2 | ||
| 326 : | pshr2 loc43 = loc43, 2 | ||
| 327 : | mix2.r loc32 = loc52, loc53 // tmp0 = mixr y4, y5 | ||
| 328 : | mix2.l loc33 = loc52, loc53 // tmp1 = mixl y4, y5 | ||
| 329 : | mix2.r loc34 = loc54, loc55 // tmp2 = mixr y6, y7 | ||
| 330 : | mix2.l loc35 = loc54, loc55 // tmp3 = mixl y6, y7 | ||
| 331 : | ;; | ||
| 332 : | pshr2 loc44 = loc44, 2 | ||
| 333 : | pshr2 loc45 = loc45, 2 | ||
| 334 : | pshr2 loc46 = loc46, 2 | ||
| 335 : | pshr2 loc47 = loc47, 2 | ||
| 336 : | mix4.r loc24 = loc32, loc34 // x0.2 = mixr tmp0, tmp2 | ||
| 337 : | mix4.r loc25 = loc33, loc35 // x1.2 = mixr tmp1, tmp3 | ||
| 338 : | mix4.l loc26 = loc32, loc34 // x2.2 = mixl tmp0, tmp2 | ||
| 339 : | mix4.l loc27 = loc33, loc35 // x3.2 = mixl tmp1, tmp3 | ||
| 340 : | ;; | ||
| 341 : | mix2.r loc32 = loc40, loc41 // tmp0 = mixr y0.2, y1.2 | ||
| 342 : | mix2.l loc33 = loc40, loc41 // tmp1 = mixl y0.2, y1.2 | ||
| 343 : | mix2.r loc34 = loc42, loc43 // tmp2 = mixr y2.2, y3.2 | ||
| 344 : | mix2.l loc35 = loc42, loc43 // tmp3 = mixl y2.2, y3.2 | ||
| 345 : | ;; | ||
| 346 : | mix4.r loc20 = loc32, loc34 // x4 = mixr tmp0, tmp2 | ||
| 347 : | mix4.r loc21 = loc33, loc35 // x5 = mixr tmp1, tmp3 | ||
| 348 : | mix4.l loc22 = loc32, loc34 // x6 = mixl tmp0, tmp2 | ||
| 349 : | mix4.l loc23 = loc33, loc35 // x7 = mixl tmp1, tmp3 | ||
| 350 : | ;; | ||
| 351 : | mix2.r loc32 = loc44, loc45 // tmp0 = mixr y4.2, y5.2 | ||
| 352 : | mix2.l loc33 = loc44, loc45 // tmp1 = mixl y4.2, y5.2 | ||
| 353 : | mix2.r loc34 = loc46, loc47 // tmp2 = mixr y6.2, y6.2 | ||
| 354 : | mix2.l loc35 = loc46, loc47 // tmp3 = mixl y6.2, y6.2 | ||
| 355 : | ;; | ||
| 356 : | mix4.r loc28 = loc32, loc34 // x4.2 = mixr tmp0, tmp2 | ||
| 357 : | mix4.r loc29 = loc33, loc35 // x5.2 = mixr tmp1, tmp3 | ||
| 358 : | mix4.l loc30 = loc32, loc34 // x6.2 = mixl tmp0, tmp2 | ||
| 359 : | mix4.l loc31 = loc33, loc35 // x7.2 = mixl tmp1, tmp3 | ||
| 360 : | |||
| 361 : | // ******************* | ||
| 362 : | // row-DTC 1st half | ||
| 363 : | // ******************* | ||
| 364 : | |||
| 365 : | psub2 loc37 = loc17, loc22 // t5 = x1 - x6 | ||
| 366 : | psub2 loc38 = loc18, loc21 // t6 = x2 - x5 | ||
| 367 : | ;; | ||
| 368 : | padd2 loc32 = loc16, loc23 // t0 = x0 + x7 | ||
| 369 : | padd2 loc33 = loc17, loc22 // t1 = x1 + x6 | ||
| 370 : | padd2 loc34 = loc18, loc21 // t2 = x2 + x5 | ||
| 371 : | psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 372 : | padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 373 : | padd2 loc35 = loc19, loc20 // t3 = x3 + x4 | ||
| 374 : | ;; | ||
| 375 : | psub2 loc36 = loc16, loc23 // t4 = x0 - x7 | ||
| 376 : | pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 377 : | pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 378 : | ;; | ||
| 379 : | psub2 loc39 = loc19, loc20 // t7 = x3 - x4 | ||
| 380 : | padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 381 : | padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 382 : | |||
| 383 : | padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 384 : | padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 385 : | psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 386 : | ;; | ||
| 387 : | psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 388 : | padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 389 : | padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 390 : | psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 391 : | psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 392 : | ;; | ||
| 393 : | pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 394 : | padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 395 : | pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 396 : | pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 397 : | psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 398 : | pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 399 : | pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 400 : | pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 401 : | ;; | ||
| 402 : | padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 403 : | padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 404 : | padd2 loc34 = loc18, loc43 // t2 = x2 + (x3 * c1) | ||
| 405 : | ;; | ||
| 406 : | psub2 loc35 = loc42, loc19 // t3 = (c1 * x2) - x3 | ||
| 407 : | padd2 loc36 = loc20, loc45 // t4 = x4 + (x5 * c1) | ||
| 408 : | psub2 loc37 = loc44, loc21 // t5 = (c1 * x4) - x5 | ||
| 409 : | padd2 loc38 = loc22, loc47 // t6 = x6 + (buf7 * c1) | ||
| 410 : | psub2 loc39 = loc46, loc23 // t7 = (c1 * buf6) - x7 | ||
| 411 : | pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 412 : | pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 413 : | ;; | ||
| 414 : | padd2 loc48 = loc16, loc32 // y0 = x0 + t0 | ||
| 415 : | pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 416 : | pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 417 : | padd2 loc52 = loc17, loc33 // y4 = x1 + t1 | ||
| 418 : | pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 419 : | pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 420 : | ;; | ||
| 421 : | padd2 loc50 = loc18, loc34 // y2 = x2 + t2 | ||
| 422 : | pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 423 : | pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 424 : | padd2 loc55 = loc21, loc37 // y7 = x5 + t5 | ||
| 425 : | padd2 loc49 = loc20, loc36 // y1 = x4 + t4 | ||
| 426 : | padd2 loc54 = loc19, loc35 // y6 = x3 + t3 | ||
| 427 : | ;; | ||
| 428 : | padd2 loc51 = loc22, loc38 // y3 = x6 + t6 | ||
| 429 : | padd2 loc53 = loc23, loc39 // y5 = x7 + t7 | ||
| 430 : | |||
| 431 : | // ******************* | ||
| 432 : | // row-DTC 2nd half | ||
| 433 : | // ******************* | ||
| 434 : | |||
| 435 : | psub2 loc37 = loc25, loc30 // t5 = x1.2 - x6.2 | ||
| 436 : | psub2 loc38 = loc26, loc29 // t6 = x2.2 - x5.2 | ||
| 437 : | padd2 loc32 = loc24, loc31 // t0 = x0.2 + x7.2 | ||
| 438 : | padd2 loc33 = loc25, loc30 // t1 = x1.2 + x6.2 | ||
| 439 : | ;; | ||
| 440 : | padd2 loc34 = loc26, loc29 // t2 = x2.2 + x5.2 | ||
| 441 : | psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 442 : | padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 443 : | padd2 loc35 = loc27, loc28 // t3 = x3.2 + x4.2 | ||
| 444 : | ;; | ||
| 445 : | psub2 loc36 = loc24, loc31 // t4 = x0.2 - x7.2 | ||
| 446 : | pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 447 : | pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 448 : | ;; | ||
| 449 : | psub2 loc39 = loc27, loc28 // t7 = x3.2 - x4.2 | ||
| 450 : | padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 451 : | padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 452 : | |||
| 453 : | padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 454 : | padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 455 : | psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 456 : | ;; | ||
| 457 : | psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 458 : | padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 459 : | padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 460 : | psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 461 : | psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 462 : | ;; | ||
| 463 : | pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 464 : | padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 465 : | pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 466 : | pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 467 : | psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 468 : | pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 469 : | pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 470 : | pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 471 : | ;; | ||
| 472 : | padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 473 : | padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 474 : | padd2 loc34 = loc18, loc43 // t2 = x2 + (x3 * c1) | ||
| 475 : | ;; | ||
| 476 : | psub2 loc35 = loc42, loc19 // t3 = (c1 * x2) - x3 | ||
| 477 : | padd2 loc36 = loc20, loc45 // t4 = x4 + (x5 * c1) | ||
| 478 : | psub2 loc37 = loc44, loc21 // t5 = (c1 * x4) - x5 | ||
| 479 : | padd2 loc38 = loc22, loc47 // t6 = x6 + (buf7 * c1) | ||
| 480 : | psub2 loc39 = loc46, loc23 // t7 = (c1 * buf6) - x7 | ||
| 481 : | pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 482 : | pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 483 : | ;; | ||
| 484 : | padd2 loc40 = loc16, loc32 // y0.2 = x0 + t0 | ||
| 485 : | pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 486 : | pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 487 : | padd2 loc44 = loc17, loc33 // y4.2 = x1 + t1 | ||
| 488 : | pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 489 : | pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 490 : | ;; | ||
| 491 : | padd2 loc42 = loc18, loc34 // y2.2 = x2 + t2 | ||
| 492 : | pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 493 : | pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 494 : | padd2 loc46 = loc19, loc35 // y6.2 = x3 + t3 | ||
| 495 : | nop.i 0x0 | ||
| 496 : | nop.i 0x0 | ||
| 497 : | ;; | ||
| 498 : | |||
| 499 : | // ******************* | ||
| 500 : | // Transpose matrix | ||
| 501 : | // ******************* | ||
| 502 : | padd2 loc41 = loc20, loc36 // y1.2 = x4 + t4 | ||
| 503 : | mix2.l loc32 = loc49, loc48 // tmp0 = mixr y1, y0 | ||
| 504 : | mix2.r loc33 = loc49, loc48 // tmp1 = mixl y1, y0 | ||
| 505 : | padd2 loc47 = loc21, loc37 // y7.2 = x5 + t5 | ||
| 506 : | mix2.l loc34 = loc51, loc50 // tmp2 = mixr y3, y2 | ||
| 507 : | mix2.r loc35 = loc51, loc50 // tmp3 = mixl y3, y2 | ||
| 508 : | ;; | ||
| 509 : | padd2 loc43 = loc22, loc38 // y3.2 = x6 + t6 | ||
| 510 : | mix4.l loc16 = loc34, loc32 // x0 = mixr tmp2, tmp0 | ||
| 511 : | mix4.l loc17 = loc35, loc33 // x1 = mixr tmp3, tmp1 | ||
| 512 : | padd2 loc45 = loc23, loc39 // y5.2 = x7 + t7 | ||
| 513 : | mix4.r loc18 = loc34, loc32 // x2 = mixl tmp2, tmp0 | ||
| 514 : | mix4.r loc19 = loc35, loc33 // x3 = mixl tmp3, tmp1 | ||
| 515 : | ;; | ||
| 516 : | padd2 loc16 = loc16, r23 | ||
| 517 : | mix2.l loc32 = loc41, loc40 // tmp0 = mixr y0.2, y1.2 | ||
| 518 : | mix2.r loc33 = loc41, loc40 // tmp1 = mixl y0.2, y1.2 | ||
| 519 : | padd2 loc17 = loc17, r23 | ||
| 520 : | mix2.l loc34 = loc43, loc42 // tmp2 = mixr y2.2, y3.2 | ||
| 521 : | mix2.r loc35 = loc43, loc42 // tmp3 = mixl y2.2, y3.2 | ||
| 522 : | ;; | ||
| 523 : | padd2 loc18 = loc18, r23 | ||
| 524 : | mix4.l loc20 = loc34, loc32 // x4 = mixr tmp2, tmp0 | ||
| 525 : | mix4.l loc21 = loc35, loc33 // x5 = mixr tmp3, tmp1 | ||
| 526 : | padd2 loc19 = loc19, r23 | ||
| 527 : | mix4.r loc22 = loc34, loc32 // x6 = mixl tmp2, tmp0 | ||
| 528 : | mix4.r loc23 = loc35, loc33 // x7 = mixl tmp3, tmp1 | ||
| 529 : | ;; | ||
| 530 : | padd2 loc20 = loc20, r23 | ||
| 531 : | mix2.l loc32 = loc53, loc52 // tmp0 = mixr y5, y4 | ||
| 532 : | mix2.r loc33 = loc53, loc52 // tmp1 = mixl y5, y4 | ||
| 533 : | padd2 loc21 = loc21, r23 | ||
| 534 : | mix2.l loc34 = loc55, loc54 // tmp2 = mixr y7, y6 | ||
| 535 : | mix2.r loc35 = loc55, loc54 // tmp3 = mixl y7, y6 | ||
| 536 : | ;; | ||
| 537 : | padd2 loc22 = loc22, r23 | ||
| 538 : | mix4.l loc24 = loc34, loc32 // x0.2 = mixr tmp2, tmp0 | ||
| 539 : | mix4.l loc25 = loc35, loc33 // x1.2 = mixr tmp3, tmp1 | ||
| 540 : | padd2 loc23 = loc23, r23 | ||
| 541 : | mix4.r loc26 = loc34, loc32 // x2.2 = mixl tmp2, tmp0 | ||
| 542 : | mix4.r loc27 = loc35, loc33 // x3.2 = mixl tmp3, tmp1 | ||
| 543 : | ;; | ||
| 544 : | padd2 loc24 = loc24, r23 | ||
| 545 : | mix2.l loc32 = loc45, loc44 // tmp0 = mixr y4.2, y5.2 | ||
| 546 : | mix2.r loc33 = loc45, loc44 // tmp1 = mixl y4.2, y5.2 | ||
| 547 : | padd2 loc25 = loc25, r23 | ||
| 548 : | mix2.l loc34 = loc47, loc46 // tmp2 = mixr y6.2, y6.2 | ||
| 549 : | mix2.r loc35 = loc47, loc46 // tmp3 = mixl y6.2, y6.2 | ||
| 550 : | ;; | ||
| 551 : | padd2 loc26 = loc26, r23 | ||
| 552 : | mix4.l loc28 = loc34, loc32 // x4.2 = mixr tmp2, tmp0 | ||
| 553 : | mix4.l loc29 = loc35, loc33 // x5.2 = mixr tmp3, tmp1 | ||
| 554 : | padd2 loc27 = loc27, r23 | ||
| 555 : | mix4.r loc30 = loc34, loc32 // x6.2 = mixl tmp2, tmp0 | ||
| 556 : | mix4.r loc31 = loc35, loc33 // x7.2 = mixl tmp3, tmp1 | ||
| 557 : | ;; | ||
| 558 : | // ******************* | ||
| 559 : | // Descale | ||
| 560 : | // ******************* | ||
| 561 : | padd2 loc28 = loc28, r23 | ||
| 562 : | pshr2 loc16 = loc16, 3 | ||
| 563 : | pshr2 loc17 = loc17, 3 | ||
| 564 : | padd2 loc29 = loc29, r23 | ||
| 565 : | pshr2 loc18 = loc18, 3 | ||
| 566 : | pshr2 loc19 = loc19, 3 | ||
| 567 : | padd2 loc30 = loc30, r23 | ||
| 568 : | pshr2 loc20 = loc20, 3 | ||
| 569 : | pshr2 loc21 = loc21, 3 | ||
| 570 : | padd2 loc31 = loc31, r23 | ||
| 571 : | pshr2 loc22 = loc22, 3 | ||
| 572 : | pshr2 loc23 = loc23, 3 | ||
| 573 : | ;; | ||
| 574 : | pshr2 loc24 = loc24, 3 | ||
| 575 : | pshr2 loc25 = loc25, 3 | ||
| 576 : | pshr2 loc26 = loc26, 3 | ||
| 577 : | pshr2 loc27 = loc27, 3 | ||
| 578 : | pshr2 loc28 = loc28, 3 | ||
| 579 : | pshr2 loc29 = loc29, 3 | ||
| 580 : | pshr2 loc30 = loc30, 3 | ||
| 581 : | pshr2 loc31 = loc31, 3 | ||
| 582 : | ;; | ||
| 583 : | // ******************* | ||
| 584 : | // Store matrix | ||
| 585 : | // ******************* | ||
| 586 : | st8 [loc0] = loc16 | ||
| 587 : | st8 [loc1] = loc24 | ||
| 588 : | st8 [loc2] = loc17 | ||
| 589 : | st8 [loc3] = loc25 | ||
| 590 : | st8 [loc4] = loc18 | ||
| 591 : | st8 [loc5] = loc26 | ||
| 592 : | st8 [loc6] = loc19 | ||
| 593 : | st8 [loc7] = loc27 | ||
| 594 : | st8 [loc8] = loc20 | ||
| 595 : | st8 [loc9] = loc28 | ||
| 596 : | st8 [loc10] = loc21 | ||
| 597 : | st8 [loc11] = loc29 | ||
| 598 : | st8 [loc12] = loc22 | ||
| 599 : | st8 [loc13] = loc30 | ||
| 600 : | st8 [loc14] = loc23 | ||
| 601 : | st8 [loc15] = loc31 | ||
| 602 : | |||
| 603 : | mov ar.pfs = r14 | ||
| 604 : | br.ret.sptk.many b0 | ||
| 605 : | .endp fdct_ia64# | ||
| 606 : | .common fdct#,8,8 | ||
| 607 : | |||
| 608 : | |||
| 609 : | |||
| 610 : | |||
| 611 : | |||
| 612 : | |||
| 613 : | |||
| 614 : | |||
| 615 : | //*********************************************** | ||
| 616 : | //* Here is a version of the DCT implementation * | ||
| 617 : | //* unoptimized in terms of command ordering. * | ||
| 618 : | //* This version is about 30% slower but * | ||
| 619 : | //* easier understand. * | ||
| 620 : | //*********************************************** | ||
| 621 : | // | ||
| 622 : | // .pred.safe_across_calls p1-p5,p16-p63 | ||
| 623 : | //.text | ||
| 624 : | // .align 16 | ||
| 625 : | // .global fdct_ia64# | ||
| 626 : | // .proc fdct_ia64# | ||
| 627 : | //fdct_ia64: | ||
| 628 : | // .prologue | ||
| 629 : | // alloc r14 = ar.pfs, 1, 56, 0, 0 | ||
| 630 : | // | ||
| 631 : | // // ******************* | ||
| 632 : | // // Save constants | ||
| 633 : | // // ******************* | ||
| 634 : | // mov r31 = 0x32ec // c0 = tan(1pi/16) | ||
| 635 : | // mov r30 = 0x6a0a // c1 = tan(2pi/16) | ||
| 636 : | // mov r29 = 0xab0e // c2 = tan(3pi/16) | ||
| 637 : | // mov r28 = 0xb505 // g4 = cos(4pi/16) | ||
| 638 : | // mov r27 = 0xd4db // g3 = cos(3pi/16) | ||
| 639 : | // mov r26 = 0xec83 // g2 = cos(2pi/16) | ||
| 640 : | // mov r25 = 0xfb15 // g1 = cos(1pi/16) | ||
| 641 : | // mov r24 = 0x0002 // correction bit for descaling | ||
| 642 : | // mov r23 = 0x0004 // correction bit for descaling | ||
| 643 : | // | ||
| 644 : | // // ************************** | ||
| 645 : | // // Load Matrix into registers | ||
| 646 : | // // ************************** | ||
| 647 : | // | ||
| 648 : | // add loc0 = r0, r32 | ||
| 649 : | // ;; | ||
| 650 : | // mux2 r31 = r31, 0x00 | ||
| 651 : | // mux2 r30 = r30, 0x00 | ||
| 652 : | // mux2 r29 = r29, 0x00 | ||
| 653 : | // mux2 r28 = r28, 0x00 | ||
| 654 : | // mux2 r27 = r27, 0x00 | ||
| 655 : | // mux2 r26 = r26, 0x00 | ||
| 656 : | // mux2 r25 = r25, 0x00 | ||
| 657 : | // mux2 r24 = r24, 0x00 | ||
| 658 : | // mux2 r23 = r23, 0x00 | ||
| 659 : | // ld8 loc16 = [loc0] | ||
| 660 : | // add loc2 = 16, r32 | ||
| 661 : | // add loc4 = 32, r32 | ||
| 662 : | // add loc6 = 48, r32 | ||
| 663 : | // add loc8 = 64, r32 | ||
| 664 : | // add loc10 = 80, r32 | ||
| 665 : | // ;; | ||
| 666 : | // ld8 loc17 = [loc2] | ||
| 667 : | // ld8 loc18 = [loc4] | ||
| 668 : | // add loc12 = 96, r32 | ||
| 669 : | // ld8 loc19 = [loc6] | ||
| 670 : | // ld8 loc20 = [loc8] | ||
| 671 : | // add loc14 = 112, r32 | ||
| 672 : | // ;; | ||
| 673 : | // ld8 loc21 = [loc10] | ||
| 674 : | // ld8 loc22 = [loc12] | ||
| 675 : | // add loc1 = 8, r32 | ||
| 676 : | // ld8 loc23 = [loc14] | ||
| 677 : | // add loc3 = 24, r32 | ||
| 678 : | // add loc5 = 40, r32 | ||
| 679 : | // ;; | ||
| 680 : | // ld8 loc24 = [loc1] | ||
| 681 : | // ld8 loc25 = [loc3] | ||
| 682 : | // add loc7 = 56, r32 | ||
| 683 : | // ld8 loc26 = [loc5] | ||
| 684 : | // add loc9 = 72, r32 | ||
| 685 : | // add loc11 = 88, r32 | ||
| 686 : | // ;; | ||
| 687 : | // ld8 loc27 = [loc7] | ||
| 688 : | // ld8 loc28 = [loc9] | ||
| 689 : | // add loc13 = 104, r32 | ||
| 690 : | // ld8 loc29 = [loc11] | ||
| 691 : | // add loc15 = 120, r32 | ||
| 692 : | // ;; | ||
| 693 : | // ld8 loc30 = [loc13] | ||
| 694 : | // ld8 loc31 = [loc15] | ||
| 695 : | // ;; | ||
| 696 : | // // ****** | ||
| 697 : | // // Scale | ||
| 698 : | // // ****** | ||
| 699 : | // pshl2 loc16 = loc16, 3 | ||
| 700 : | // pshl2 loc17 = loc17, 3 | ||
| 701 : | // pshl2 loc18 = loc18, 3 | ||
| 702 : | // pshl2 loc19 = loc19, 3 | ||
| 703 : | // pshl2 loc20 = loc20, 3 | ||
| 704 : | // pshl2 loc21 = loc21, 3 | ||
| 705 : | // pshl2 loc22 = loc22, 3 | ||
| 706 : | // pshl2 loc23 = loc23, 3 | ||
| 707 : | // pshl2 loc24 = loc24, 3 | ||
| 708 : | // pshl2 loc25 = loc25, 3 | ||
| 709 : | // pshl2 loc26 = loc26, 3 | ||
| 710 : | // pshl2 loc27 = loc27, 3 | ||
| 711 : | // pshl2 loc28 = loc28, 3 | ||
| 712 : | // pshl2 loc29 = loc29, 3 | ||
| 713 : | // pshl2 loc30 = loc30, 3 | ||
| 714 : | // pshl2 loc31 = loc31, 3 | ||
| 715 : | // ;; | ||
| 716 : | // | ||
| 717 : | // // ******************* | ||
| 718 : | // // column-DTC 1st half | ||
| 719 : | // // ******************* | ||
| 720 : | // | ||
| 721 : | // padd2 loc32 = loc16, loc23 // t0 = x0 + x7 | ||
| 722 : | // padd2 loc33 = loc17, loc22 // t1 = x1 + x6 | ||
| 723 : | // padd2 loc34 = loc18, loc21 // t2 = x2 + x5 | ||
| 724 : | // padd2 loc35 = loc19, loc20 // t3 = x3 + x4 | ||
| 725 : | // psub2 loc36 = loc16, loc23 // t4 = x0 - x7 | ||
| 726 : | // psub2 loc37 = loc17, loc22 // t5 = x1 - x6 | ||
| 727 : | // psub2 loc38 = loc18, loc21 // t6 = x2 - x5 | ||
| 728 : | // psub2 loc39 = loc19, loc20 // t7 = x3 - x4 | ||
| 729 : | // ;; | ||
| 730 : | // padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 731 : | // psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 732 : | // ;; | ||
| 733 : | // pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 734 : | // pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 735 : | // ;; | ||
| 736 : | // padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 737 : | // padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 738 : | // ;; | ||
| 739 : | // padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 740 : | // padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 741 : | // psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 742 : | // psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 743 : | // padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 744 : | // padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 745 : | // psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 746 : | // psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 747 : | // ;; | ||
| 748 : | // | ||
| 749 : | // padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 750 : | // psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 751 : | // pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 752 : | // pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 753 : | // pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 754 : | // pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 755 : | // pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 756 : | // pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 757 : | // ;; | ||
| 758 : | // padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 759 : | // padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 760 : | // ;; | ||
| 761 : | // padd2 loc34 = loc18, loc43 // t2 = x2 + (x3 * c1) | ||
| 762 : | // psub2 loc35 = loc42, loc19 // t3 = (c1 * x2) - x3 | ||
| 763 : | // padd2 loc36 = loc20, loc45 // t4 = x4 + (x5 * c1) | ||
| 764 : | // psub2 loc37 = loc44, loc21 // t5 = (c1 * x4) - x5 | ||
| 765 : | // padd2 loc38 = loc22, loc47 // t6 = x6 + (x7 * c1) | ||
| 766 : | // psub2 loc39 = loc46, loc23 // t7 = (c1 * x6) - x7 | ||
| 767 : | // ;; | ||
| 768 : | // pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 769 : | // pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 770 : | // pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 771 : | // pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 772 : | // pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 773 : | // pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 774 : | // pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 775 : | // pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 776 : | // ;; | ||
| 777 : | // padd2 loc48 = loc16, loc32 // y0 = x0 + t0 | ||
| 778 : | // padd2 loc49 = loc20, loc36 // y1 = x4 + t4 | ||
| 779 : | // padd2 loc50 = loc18, loc34 // y2 = x2 + t2 | ||
| 780 : | // padd2 loc51 = loc22, loc38 // y3 = x6 + t6 | ||
| 781 : | // padd2 loc52 = loc17, loc33 // y4 = x1 + t1 | ||
| 782 : | // padd2 loc53 = loc23, loc39 // y5 = x7 + t7 | ||
| 783 : | // padd2 loc54 = loc19, loc35 // y6 = x3 + t3 | ||
| 784 : | // padd2 loc55 = loc21, loc37 // y7 = x5 + t5 | ||
| 785 : | // ;; | ||
| 786 : | // | ||
| 787 : | // // ******************* | ||
| 788 : | // // column-DTC 2nd half | ||
| 789 : | // // ******************* | ||
| 790 : | // | ||
| 791 : | // padd2 loc32 = loc24, loc31 // t0 = x0.2 + x7.2 | ||
| 792 : | // padd2 loc33 = loc25, loc30 // t1 = x1.2 + x6.2 | ||
| 793 : | // padd2 loc34 = loc26, loc29 // t2 = x2.2 + x5.2 | ||
| 794 : | // padd2 loc35 = loc27, loc28 // t3 = x3.2 + x4.2 | ||
| 795 : | // psub2 loc36 = loc24, loc31 // t4 = x0.2 - x7.2 | ||
| 796 : | // psub2 loc37 = loc25, loc30 // t5 = x1.2 - x6.2 | ||
| 797 : | // psub2 loc38 = loc26, loc29 // t6 = x2.2 - x5.2 | ||
| 798 : | // psub2 loc39 = loc27, loc28 // t7 = x3.2 - x4.2 | ||
| 799 : | // ;; | ||
| 800 : | // padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 801 : | // psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 802 : | // ;; | ||
| 803 : | // pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 804 : | // pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 805 : | // ;; | ||
| 806 : | // padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 807 : | // padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 808 : | // ;; | ||
| 809 : | // padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 810 : | // padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 811 : | // psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 812 : | // psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 813 : | // padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 814 : | // padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 815 : | // psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 816 : | // psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 817 : | // ;; | ||
| 818 : | // padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 819 : | // psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 820 : | // pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 821 : | // pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 822 : | // pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 823 : | // pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 824 : | // pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 825 : | // pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 826 : | // ;; | ||
| 827 : | // padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 828 : | // padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 829 : | // ;; | ||
| 830 : | // padd2 loc34 = loc18, loc43 // t2 = x2 + (x3 * c1) | ||
| 831 : | // psub2 loc35 = loc42, loc19 // t3 = (c1 * x2) - x3 | ||
| 832 : | // padd2 loc36 = loc20, loc45 // t4 = x4 + (x5 * c1) | ||
| 833 : | // psub2 loc37 = loc44, loc21 // t5 = (c1 * x4) - x5 | ||
| 834 : | // padd2 loc38 = loc22, loc47 // t6 = x6 + (x7 * c1) | ||
| 835 : | // psub2 loc39 = loc46, loc23 // t7 = (c1 * x6) - x7 | ||
| 836 : | // ;; | ||
| 837 : | // pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 838 : | // pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 839 : | // pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 840 : | // pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 841 : | // pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 842 : | // pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 843 : | // pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 844 : | // pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 845 : | // ;; | ||
| 846 : | // padd2 loc40 = loc16, loc32 // y0.2 = x0 + t0 | ||
| 847 : | // padd2 loc41 = loc20, loc36 // y1.2 = x4 + t4 | ||
| 848 : | // padd2 loc42 = loc18, loc34 // y2.2 = x2 + t2 | ||
| 849 : | // padd2 loc43 = loc22, loc38 // y3.2 = x6 + t6 | ||
| 850 : | // padd2 loc44 = loc17, loc33 // y4.2 = x1 + t1 | ||
| 851 : | // padd2 loc45 = loc23, loc39 // y5.2 = x7 + t7 | ||
| 852 : | // padd2 loc46 = loc19, loc35 // y6.2 = x3 + t3 | ||
| 853 : | // padd2 loc47 = loc21, loc37 // y7.2 = x5 + t5 | ||
| 854 : | // ;; | ||
| 855 : | // padd2 loc40 = loc40, r24 // add r24 to correct rounding | ||
| 856 : | // padd2 loc41 = loc41, r24 | ||
| 857 : | // padd2 loc42 = loc42, r24 | ||
| 858 : | // padd2 loc43 = loc43, r24 | ||
| 859 : | // padd2 loc44 = loc44, r24 | ||
| 860 : | // padd2 loc45 = loc45, r24 | ||
| 861 : | // padd2 loc46 = loc46, r24 | ||
| 862 : | // padd2 loc47 = loc47, r24 | ||
| 863 : | // padd2 loc48 = loc48, r24 | ||
| 864 : | // padd2 loc49 = loc49, r24 | ||
| 865 : | // padd2 loc50 = loc50, r24 | ||
| 866 : | // padd2 loc51 = loc51, r24 | ||
| 867 : | // padd2 loc52 = loc52, r24 | ||
| 868 : | // padd2 loc53 = loc53, r24 | ||
| 869 : | // padd2 loc54 = loc54, r24 | ||
| 870 : | // padd2 loc55 = loc55, r24 | ||
| 871 : | // ;; | ||
| 872 : | // pshr2 loc40 = loc40, 2 // Divide all matrix elements through 4 | ||
| 873 : | // pshr2 loc41 = loc41, 2 | ||
| 874 : | // pshr2 loc42 = loc42, 2 | ||
| 875 : | // pshr2 loc43 = loc43, 2 | ||
| 876 : | // pshr2 loc44 = loc44, 2 | ||
| 877 : | // pshr2 loc45 = loc45, 2 | ||
| 878 : | // pshr2 loc46 = loc46, 2 | ||
| 879 : | // pshr2 loc47 = loc47, 2 | ||
| 880 : | // pshr2 loc48 = loc48, 2 | ||
| 881 : | // pshr2 loc49 = loc49, 2 | ||
| 882 : | // pshr2 loc50 = loc50, 2 | ||
| 883 : | // pshr2 loc51 = loc51, 2 | ||
| 884 : | // pshr2 loc52 = loc52, 2 | ||
| 885 : | // pshr2 loc53 = loc53, 2 | ||
| 886 : | // pshr2 loc54 = loc54, 2 | ||
| 887 : | // pshr2 loc55 = loc55, 2 | ||
| 888 : | // ;; | ||
| 889 : | // | ||
| 890 : | // // ***************** | ||
| 891 : | // // Transpose matrix | ||
| 892 : | // // ***************** | ||
| 893 : | // | ||
| 894 : | // mix2.r loc32 = loc48, loc49 // tmp0 = mixr y0, y1 | ||
| 895 : | // mix2.l loc33 = loc48, loc49 // tmp1 = mixl y0, y1 | ||
| 896 : | // mix2.r loc34 = loc50, loc51 // tmp2 = mixr y2, y3 | ||
| 897 : | // mix2.l loc35 = loc50, loc51 // tmp3 = mixl y2, y3 | ||
| 898 : | // ;; | ||
| 899 : | // mix4.r loc16 = loc32, loc34 // x0 = mixr tmp0, tmp2 | ||
| 900 : | // mix4.r loc17 = loc33, loc35 // x1 = mixr tmp1, tmp3 | ||
| 901 : | // mix4.l loc18 = loc32, loc34 // x2 = mixl tmp0, tmp2 | ||
| 902 : | // mix4.l loc19 = loc33, loc35 // x3 = mixl tmp1, tmp3 | ||
| 903 : | // ;; | ||
| 904 : | // mix2.r loc32 = loc40, loc41 // tmp0 = mixr y0.2, y1.2 | ||
| 905 : | // mix2.l loc33 = loc40, loc41 // tmp1 = mixl y0.2, y1.2 | ||
| 906 : | // mix2.r loc34 = loc42, loc43 // tmp2 = mixr y2.2, y3.2 | ||
| 907 : | // mix2.l loc35 = loc42, loc43 // tmp3 = mixl y2.2, y3.2 | ||
| 908 : | // ;; | ||
| 909 : | // mix4.r loc20 = loc32, loc34 // x4 = mixr tmp0, tmp2 | ||
| 910 : | // mix4.r loc21 = loc33, loc35 // x5 = mixr tmp1, tmp3 | ||
| 911 : | // mix4.l loc22 = loc32, loc34 // x6 = mixl tmp0, tmp2 | ||
| 912 : | // mix4.l loc23 = loc33, loc35 // x7 = mixl tmp1, tmp3 | ||
| 913 : | // ;; | ||
| 914 : | // mix2.r loc32 = loc52, loc53 // tmp0 = mixr y4, y5 | ||
| 915 : | // mix2.l loc33 = loc52, loc53 // tmp1 = mixl y4, y5 | ||
| 916 : | // mix2.r loc34 = loc54, loc55 // tmp2 = mixr y6, y7 | ||
| 917 : | // mix2.l loc35 = loc54, loc55 // tmp3 = mixl y6, y7 | ||
| 918 : | // ;; | ||
| 919 : | // mix4.r loc24 = loc32, loc34 // x0.2 = mixr tmp0, tmp2 | ||
| 920 : | // mix4.r loc25 = loc33, loc35 // x1.2 = mixr tmp1, tmp3 | ||
| 921 : | // mix4.l loc26 = loc32, loc34 // x2.2 = mixl tmp0, tmp2 | ||
| 922 : | // mix4.l loc27 = loc33, loc35 // x3.2 = mixl tmp1, tmp3 | ||
| 923 : | // ;; | ||
| 924 : | // mix2.r loc32 = loc44, loc45 // tmp0 = mixr y4.2, y5.2 | ||
| 925 : | // mix2.l loc33 = loc44, loc45 // tmp1 = mixl y4.2, y5.2 | ||
| 926 : | // mix2.r loc34 = loc46, loc47 // tmp2 = mixr y6.2, y6.2 | ||
| 927 : | // mix2.l loc35 = loc46, loc47 // tmp3 = mixl y6.2, y6.2 | ||
| 928 : | // ;; | ||
| 929 : | // mix4.r loc28 = loc32, loc34 // x4.2 = mixr tmp0, tmp2 | ||
| 930 : | // mix4.r loc29 = loc33, loc35 // x5.2 = mixr tmp1, tmp3 | ||
| 931 : | // mix4.l loc30 = loc32, loc34 // x6.2 = mixl tmp0, tmp2 | ||
| 932 : | // mix4.l loc31 = loc33, loc35 // x7.2 = mixl tmp1, tmp3 | ||
| 933 : | // ;; | ||
| 934 : | // | ||
| 935 : | // // ******************* | ||
| 936 : | // // row-DTC 1st half | ||
| 937 : | // // ******************* | ||
| 938 : | // | ||
| 939 : | // padd2 loc32 = loc16, loc23 // t0 = x0 + x7 | ||
| 940 : | // padd2 loc33 = loc17, loc22 // t1 = x1 + x6 | ||
| 941 : | // padd2 loc34 = loc18, loc21 // t2 = x2 + x5 | ||
| 942 : | // padd2 loc35 = loc19, loc20 // t3 = x3 + x4 | ||
| 943 : | // psub2 loc36 = loc16, loc23 // t4 = x0 - x7 | ||
| 944 : | // psub2 loc37 = loc17, loc22 // t5 = x1 - x6 | ||
| 945 : | // psub2 loc38 = loc18, loc21 // t6 = x2 - x5 | ||
| 946 : | // psub2 loc39 = loc19, loc20 // t7 = x3 - x4 | ||
| 947 : | // ;; | ||
| 948 : | // padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 949 : | // psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 950 : | // ;; | ||
| 951 : | // pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 952 : | // pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 953 : | // ;; | ||
| 954 : | // padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 955 : | // padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 956 : | // ;; | ||
| 957 : | // padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 958 : | // padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 959 : | // psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 960 : | // psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 961 : | // padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 962 : | // padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 963 : | // psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 964 : | // psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 965 : | // ;; | ||
| 966 : | // padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 967 : | // psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 968 : | // pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 969 : | // pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 970 : | // pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 971 : | // pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 972 : | // pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 973 : | // pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 974 : | // ;; | ||
| 975 : | // padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 976 : | // padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 977 : | // ;; | ||
| 978 : | // padd2 loc34 = loc18, loc43 // t2 = x2 + (x3 * c1) | ||
| 979 : | // psub2 loc35 = loc42, loc19 // t3 = (c1 * x2) - x3 | ||
| 980 : | // padd2 loc36 = loc20, loc45 // t4 = x4 + (x5 * c1) | ||
| 981 : | // psub2 loc37 = loc44, loc21 // t5 = (c1 * x4) - x5 | ||
| 982 : | // padd2 loc38 = loc22, loc47 // t6 = x6 + (x7 * c1) | ||
| 983 : | // psub2 loc39 = loc46, loc23 // t7 = (c1 * x6) - x7 | ||
| 984 : | // ;; | ||
| 985 : | // pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 986 : | // pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 987 : | // pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 988 : | // pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 989 : | // pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 990 : | // pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 991 : | // pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 992 : | // pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 993 : | // ;; | ||
| 994 : | // padd2 loc48 = loc16, loc32 // y0 = x0 + t0 | ||
| 995 : | // padd2 loc49 = loc20, loc36 // y1 = x4 + t4 | ||
| 996 : | // padd2 loc50 = loc18, loc34 // y2 = x2 + t2 | ||
| 997 : | // padd2 loc51 = loc22, loc38 // y3 = x6 + t6 | ||
| 998 : | // padd2 loc52 = loc17, loc33 // y4 = x1 + t1 | ||
| 999 : | // padd2 loc53 = loc23, loc39 // y5 = x7 + t7 | ||
| 1000 : | // padd2 loc54 = loc19, loc35 // y6 = x3 + t3 | ||
| 1001 : | // padd2 loc55 = loc21, loc37 // y7 = x5 + t5 | ||
| 1002 : | // ;; | ||
| 1003 : | // | ||
| 1004 : | // // ******************* | ||
| 1005 : | // // row-DTC 2nd half | ||
| 1006 : | // // ******************* | ||
| 1007 : | // | ||
| 1008 : | // padd2 loc32 = loc24, loc31 // t0 = x0.2 + x7.2 | ||
| 1009 : | // padd2 loc33 = loc25, loc30 // t1 = x1.2 + x6.2 | ||
| 1010 : | // padd2 loc34 = loc26, loc29 // t2 = x2.2 + x5.2 | ||
| 1011 : | // padd2 loc35 = loc27, loc28 // t3 = x3.2 + x4.2 | ||
| 1012 : | // psub2 loc36 = loc24, loc31 // t4 = x0.2 - x7.2 | ||
| 1013 : | // psub2 loc37 = loc25, loc30 // t5 = x1.2 - x6.2 | ||
| 1014 : | // psub2 loc38 = loc26, loc29 // t6 = x2.2 - x5.2 | ||
| 1015 : | // psub2 loc39 = loc27, loc28 // t7 = x3.2 - x4.2 | ||
| 1016 : | // ;; | ||
| 1017 : | // padd2 loc40 = loc37, loc38 // buf0 = t5 + t6 | ||
| 1018 : | // psub2 loc41 = loc37, loc38 // buf1 = t5 - t6 | ||
| 1019 : | // ;; | ||
| 1020 : | // pmpyshr2 loc37 = loc40, r28, 16 // t5 = buf0 * g4 | ||
| 1021 : | // pmpyshr2 loc38 = loc41, r28, 16 // t6 = buf1 * g4 | ||
| 1022 : | // ;; | ||
| 1023 : | // padd2 loc37 = loc37, loc40 // t5 = t5 + buf1 | ||
| 1024 : | // padd2 loc38 = loc38, loc41 // t6 = t6 + buf2 | ||
| 1025 : | // ;; | ||
| 1026 : | // padd2 loc16 = loc32, loc35 // x0 = t0 + t3 | ||
| 1027 : | // padd2 loc17 = loc33, loc34 // x1 = t1 + t2 | ||
| 1028 : | // psub2 loc18 = loc32, loc35 // x2 = t0 - t3 | ||
| 1029 : | // psub2 loc19 = loc33, loc34 // x3 = t1 - t2 | ||
| 1030 : | // padd2 loc20 = loc36, loc37 // x4 = t4 + t5 | ||
| 1031 : | // padd2 loc21 = loc38, loc39 // x5 = t6 + t7 | ||
| 1032 : | // psub2 loc22 = loc36, loc37 // x6 = t4 - t5 | ||
| 1033 : | // psub2 loc23 = loc38, loc39 // x7 = t6 - t7 | ||
| 1034 : | // ;; | ||
| 1035 : | // padd2 loc32 = loc16, loc17 // t0 = x0 + x1 | ||
| 1036 : | // psub2 loc33 = loc16, loc17 // t1 = x0 - x1 | ||
| 1037 : | // pmpyshr2 loc42 = loc18, r30, 16 // buf2 = x2 * c1 | ||
| 1038 : | // pmpyshr2 loc43 = loc19, r30, 16 // buf3 = x3 * c1 | ||
| 1039 : | // pmpyshr2 loc44 = loc20, r31, 16 // buf4 = x4 * c0 | ||
| 1040 : | // pmpyshr2 loc45 = loc21, r31, 16 // buf5 = x5 * c0 | ||
| 1041 : | // pmpyshr2 loc46 = loc22, r29, 16 // buf6 = x6 * c2 | ||
| 1042 : | // pmpyshr2 loc47 = loc23, r29, 16 // buf7 = x7 * c2 | ||
| 1043 : | // ;; | ||
| 1044 : | // padd2 loc46 = loc46, loc22 // buf6 = buf6 + x6 | ||
| 1045 : | // padd2 loc47 = loc47, loc23 // buf7 = buf7 + x7 | ||
| 1046 : | // ;; | ||
| 1047 : | // padd2 loc34 = loc18, loc43 // t2 = x2 + (x3 * c1) | ||
| 1048 : | // psub2 loc35 = loc42, loc19 // t3 = (c1 * x2) - x3 | ||
| 1049 : | // padd2 loc36 = loc20, loc45 // t4 = x4 + (x5 * c1) | ||
| 1050 : | // psub2 loc37 = loc44, loc21 // t5 = (c1 * x4) - x5 | ||
| 1051 : | // padd2 loc38 = loc22, loc47 // t6 = x6 + (x7 * c1) | ||
| 1052 : | // psub2 loc39 = loc46, loc23 // t7 = (c1 * x6) - x7 | ||
| 1053 : | // ;; | ||
| 1054 : | // pmpyshr2 loc16 = loc32, r28, 16 // x0 = t0 * g4 | ||
| 1055 : | // pmpyshr2 loc17 = loc33, r28, 16 // x1 = t1 * g4 | ||
| 1056 : | // pmpyshr2 loc18 = loc34, r26, 16 // x2 = t2 * g2 | ||
| 1057 : | // pmpyshr2 loc19 = loc35, r26, 16 // x3 = t3 * g2 | ||
| 1058 : | // pmpyshr2 loc20 = loc36, r25, 16 // x4 = t4 * g1 | ||
| 1059 : | // pmpyshr2 loc21 = loc37, r25, 16 // x5 = t5 * g1 | ||
| 1060 : | // pmpyshr2 loc22 = loc38, r27, 16 // x6 = t6 * g3 | ||
| 1061 : | // pmpyshr2 loc23 = loc39, r27, 16 // x7 = t7 * g3 | ||
| 1062 : | // ;; | ||
| 1063 : | // padd2 loc40 = loc16, loc32 // y0.2 = x0 + t0 | ||
| 1064 : | // padd2 loc41 = loc20, loc36 // y1.2 = x4 + t4 | ||
| 1065 : | // padd2 loc42 = loc18, loc34 // y2.2 = x2 + t2 | ||
| 1066 : | // padd2 loc43 = loc22, loc38 // y3.2 = x6 + t6 | ||
| 1067 : | // padd2 loc44 = loc17, loc33 // y4.2 = x1 + t1 | ||
| 1068 : | // padd2 loc45 = loc23, loc39 // y5.2 = x7 + t7 | ||
| 1069 : | // padd2 loc46 = loc19, loc35 // y6.2 = x3 + t3 | ||
| 1070 : | // padd2 loc47 = loc21, loc37 // y7.2 = x5 + t5 | ||
| 1071 : | // ;; | ||
| 1072 : | // // ******************* | ||
| 1073 : | // // Transpose matrix | ||
| 1074 : | // // ******************* | ||
| 1075 : | // | ||
| 1076 : | // mix2.l loc32 = loc49, loc48 // tmp0 = mixr y1, y0 | ||
| 1077 : | // mix2.r loc33 = loc49, loc48 // tmp1 = mixl y1, y0 | ||
| 1078 : | // mix2.l loc34 = loc51, loc50 // tmp2 = mixr y3, y2 | ||
| 1079 : | // mix2.r loc35 = loc51, loc50 // tmp3 = mixl y3, y2 | ||
| 1080 : | // ;; | ||
| 1081 : | // mix4.l loc16 = loc34, loc32 // x0 = mixr tmp2, tmp0 | ||
| 1082 : | // mix4.l loc17 = loc35, loc33 // x1 = mixr tmp3, tmp1 | ||
| 1083 : | // mix4.r loc18 = loc34, loc32 // x2 = mixl tmp2, tmp0 | ||
| 1084 : | // mix4.r loc19 = loc35, loc33 // x3 = mixl tmp3, tmp1 | ||
| 1085 : | // ;; | ||
| 1086 : | // mix2.l loc32 = loc41, loc40 // tmp0 = mixr y0.2, y1.2 | ||
| 1087 : | // mix2.r loc33 = loc41, loc40 // tmp1 = mixl y0.2, y1.2 | ||
| 1088 : | // mix2.l loc34 = loc43, loc42 // tmp2 = mixr y2.2, y3.2 | ||
| 1089 : | // mix2.r loc35 = loc43, loc42 // tmp3 = mixl y2.2, y3.2 | ||
| 1090 : | // ;; | ||
| 1091 : | // mix4.l loc20 = loc34, loc32 // x4 = mixr tmp2, tmp0 | ||
| 1092 : | // mix4.l loc21 = loc35, loc33 // x5 = mixr tmp3, tmp1 | ||
| 1093 : | // mix4.r loc22 = loc34, loc32 // x6 = mixl tmp2, tmp0 | ||
| 1094 : | // mix4.r loc23 = loc35, loc33 // x7 = mixl tmp3, tmp1 | ||
| 1095 : | // ;; | ||
| 1096 : | // mix2.l loc32 = loc53, loc52 // tmp0 = mixr y5, y4 | ||
| 1097 : | // mix2.r loc33 = loc53, loc52 // tmp1 = mixl y5, y4 | ||
| 1098 : | // mix2.l loc34 = loc55, loc54 // tmp2 = mixr y7, y6 | ||
| 1099 : | // mix2.r loc35 = loc55, loc54 // tmp3 = mixl y7, y6 | ||
| 1100 : | // ;; | ||
| 1101 : | // mix4.l loc24 = loc34, loc32 // x0.2 = mixr tmp2, tmp0 | ||
| 1102 : | // mix4.l loc25 = loc35, loc33 // x1.2 = mixr tmp3, tmp1 | ||
| 1103 : | // mix4.r loc26 = loc34, loc32 // x2.2 = mixl tmp2, tmp0 | ||
| 1104 : | // mix4.r loc27 = loc35, loc33 // x3.2 = mixl tmp3, tmp1 | ||
| 1105 : | // ;; | ||
| 1106 : | // mix2.l loc32 = loc45, loc44 // tmp0 = mixr y4.2, y5.2 | ||
| 1107 : | // mix2.r loc33 = loc45, loc44 // tmp1 = mixl y4.2, y5.2 | ||
| 1108 : | // mix2.l loc34 = loc47, loc46 // tmp2 = mixr y6.2, y6.2 | ||
| 1109 : | // mix2.r loc35 = loc47, loc46 // tmp3 = mixl y6.2, y6.2 | ||
| 1110 : | // ;; | ||
| 1111 : | // mix4.l loc28 = loc34, loc32 // x4.2 = mixr tmp2, tmp0 | ||
| 1112 : | // mix4.l loc29 = loc35, loc33 // x5.2 = mixr tmp3, tmp1 | ||
| 1113 : | // mix4.r loc30 = loc34, loc32 // x6.2 = mixl tmp2, tmp0 | ||
| 1114 : | // mix4.r loc31 = loc35, loc33 // x7.2 = mixl tmp3, tmp1 | ||
| 1115 : | // ;; | ||
| 1116 : | // | ||
| 1117 : | // // ******** | ||
| 1118 : | // // descale | ||
| 1119 : | // // ******** | ||
| 1120 : | // | ||
| 1121 : | // padd2 loc16 = loc16, r23 | ||
| 1122 : | // padd2 loc17 = loc17, r23 | ||
| 1123 : | // padd2 loc18 = loc18, r23 | ||
| 1124 : | // padd2 loc19 = loc19, r23 | ||
| 1125 : | // padd2 loc20 = loc20, r23 | ||
| 1126 : | // padd2 loc21 = loc21, r23 | ||
| 1127 : | // padd2 loc22 = loc22, r23 | ||
| 1128 : | // padd2 loc23 = loc23, r23 | ||
| 1129 : | // padd2 loc24 = loc24, r23 | ||
| 1130 : | // padd2 loc25 = loc25, r23 | ||
| 1131 : | // padd2 loc26 = loc26, r23 | ||
| 1132 : | // padd2 loc27 = loc27, r23 | ||
| 1133 : | // padd2 loc28 = loc28, r23 | ||
| 1134 : | // padd2 loc29 = loc29, r23 | ||
| 1135 : | // padd2 loc30 = loc30, r23 | ||
| 1136 : | // padd2 loc31 = loc31, r23 | ||
| 1137 : | // ;; | ||
| 1138 : | // pshr2 loc16 = loc16, 3 | ||
| 1139 : | // pshr2 loc17 = loc17, 3 | ||
| 1140 : | // pshr2 loc18 = loc18, 3 | ||
| 1141 : | // pshr2 loc19 = loc19, 3 | ||
| 1142 : | // pshr2 loc20 = loc20, 3 | ||
| 1143 : | // pshr2 loc21 = loc21, 3 | ||
| 1144 : | // pshr2 loc22 = loc22, 3 | ||
| 1145 : | // pshr2 loc23 = loc23, 3 | ||
| 1146 : | // pshr2 loc24 = loc24, 3 | ||
| 1147 : | // pshr2 loc25 = loc25, 3 | ||
| 1148 : | // pshr2 loc26 = loc26, 3 | ||
| 1149 : | // pshr2 loc27 = loc27, 3 | ||
| 1150 : | // pshr2 loc28 = loc28, 3 | ||
| 1151 : | // pshr2 loc29 = loc29, 3 | ||
| 1152 : | // pshr2 loc30 = loc30, 3 | ||
| 1153 : | // pshr2 loc31 = loc31, 3 | ||
| 1154 : | // ;; | ||
| 1155 : | // // ************ | ||
| 1156 : | // // Store Matrix | ||
| 1157 : | // // ************ | ||
| 1158 : | // st8 [loc0] = loc16 | ||
| 1159 : | // st8 [loc1] = loc24 | ||
| 1160 : | // st8 [loc2] = loc17 | ||
| 1161 : | // st8 [loc3] = loc25 | ||
| 1162 : | // st8 [loc4] = loc18 | ||
| 1163 : | // st8 [loc5] = loc26 | ||
| 1164 : | // st8 [loc6] = loc19 | ||
| 1165 : | // st8 [loc7] = loc27 | ||
| 1166 : | // st8 [loc8] = loc20 | ||
| 1167 : | // st8 [loc9] = loc28 | ||
| 1168 : | // st8 [loc10] = loc21 | ||
| 1169 : | // st8 [loc11] = loc29 | ||
| 1170 : | // st8 [loc12] = loc22 | ||
| 1171 : | // st8 [loc13] = loc30 | ||
| 1172 : | // st8 [loc14] = loc23 | ||
| 1173 : | // st8 [loc15] = loc31 | ||
| 1174 : | // | ||
| 1175 : | // mov ar.pfs = r14 | ||
| 1176 : | // br.ret.sptk.many b0 | ||
| 1177 : | // .endp fdct_ia64# | ||
| 1178 : | // .common fdct#,8,8 | ||
| 1179 : | // |
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