Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1 | //****************************************************************************** |
| 2 | //* |
| 3 | //* Copyright (C) 2015 The Android Open Source Project |
| 4 | //* |
| 5 | //* Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | //* you may not use this file except in compliance with the License. |
| 7 | //* You may obtain a copy of the License at: |
| 8 | //* |
| 9 | //* http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | //* |
| 11 | //* Unless required by applicable law or agreed to in writing, software |
| 12 | //* distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | //* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | //* See the License for the specific language governing permissions and |
| 15 | //* limitations under the License. |
| 16 | //* |
| 17 | //***************************************************************************** |
| 18 | //* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| 19 | //*/ |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 20 | |
| 21 | ///** |
| 22 | //****************************************************************************** |
| 23 | //* |
| 24 | //* @brief :Evaluate best intr chroma mode (among VERT, HORZ and DC ) |
| 25 | //* and do the prediction. |
| 26 | //* |
| 27 | //* @par Description |
| 28 | //* This function evaluates first three intra chroma modes and compute corresponding sad |
| 29 | //* and return the buffer predicted with best mode. |
| 30 | //* |
| 31 | //* @param[in] pu1_src |
| 32 | //* UWORD8 pointer to the source |
| 33 | //* |
| 34 | //** @param[in] pu1_ngbr_pels |
| 35 | //* UWORD8 pointer to neighbouring pels |
| 36 | //* |
| 37 | //* @param[out] pu1_dst |
| 38 | //* UWORD8 pointer to the destination |
| 39 | //* |
| 40 | //* @param[in] src_strd |
| 41 | //* integer source stride |
| 42 | //* |
| 43 | //* @param[in] dst_strd |
| 44 | //* integer destination stride |
| 45 | //* |
| 46 | //* @param[in] u4_n_avblty |
| 47 | //* availability of neighbouring pixels |
| 48 | //* |
| 49 | //* @param[in] u4_intra_mode |
| 50 | //* Pointer to the variable in which best mode is returned |
| 51 | //* |
| 52 | //* @param[in] pu4_sadmin |
| 53 | //* Pointer to the variable in which minimum sad is returned |
| 54 | //* |
| 55 | //* @param[in] u4_valid_intra_modes |
| 56 | //* Says what all modes are valid |
| 57 | //* |
| 58 | //* |
| 59 | //* @return none |
| 60 | //* |
| 61 | //****************************************************************************** |
| 62 | //*/ |
| 63 | // |
| 64 | //void ih264e_evaluate_intra_chroma_modes(UWORD8 *pu1_src, |
| 65 | // UWORD8 *pu1_ngbr_pels_i16, |
| 66 | // UWORD8 *pu1_dst, |
| 67 | // UWORD32 src_strd, |
| 68 | // UWORD32 dst_strd, |
| 69 | // WORD32 u4_n_avblty, |
| 70 | // UWORD32 *u4_intra_mode, |
| 71 | // WORD32 *pu4_sadmin, |
| 72 | // UWORD32 u4_valid_intra_modes) |
| 73 | // |
| 74 | .text |
| 75 | .p2align 2 |
| 76 | .include "ih264_neon_macros.s" |
| 77 | |
| 78 | .global ih264e_evaluate_intra_chroma_modes_av8 |
| 79 | |
| 80 | ih264e_evaluate_intra_chroma_modes_av8: |
| 81 | |
| 82 | //x0 = pu1_src, |
| 83 | //x1 = pu1_ngbr_pels_i16, |
| 84 | //x2 = pu1_dst, |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 85 | //w3 = src_strd, |
| 86 | //w4 = dst_strd, |
| 87 | //w5 = u4_n_avblty, |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 88 | //x6 = u4_intra_mode, |
| 89 | //x7 = pu4_sadmin |
| 90 | |
| 91 | |
| 92 | |
| 93 | // STMFD sp!, {x4-x12, x14} //store register values to stack |
| 94 | push_v_regs |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 95 | sxtw x3, w3 |
| 96 | sxtw x4, w4 |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 97 | stp x19, x20, [sp, #-16]! |
| 98 | //----------------------- |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 99 | ldr w16, [sp, #80] |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 100 | mov x17, x4 |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 101 | mov w18, w5 |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 102 | mov x14, x6 |
| 103 | mov x15, x7 |
| 104 | |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 105 | mov w19, #5 |
| 106 | ands w6, w5, w19 |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 107 | beq none_available |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 108 | cmp w6, #1 |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 109 | beq left_only_available |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 110 | cmp w6, #4 |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 111 | beq top_only_available |
| 112 | |
| 113 | all_available: |
| 114 | ld1 {v0.8b, v1.8b}, [x1] |
| 115 | add x6, x1, #18 |
| 116 | ld1 {v2.8b, v3.8b}, [x6] |
| 117 | uxtl v0.8h, v0.8b |
| 118 | uxtl v1.8h, v1.8b |
| 119 | addp v0.4s, v0.4s , v0.4s |
| 120 | addp v1.4s, v1.4s , v1.4s |
| 121 | addp v0.4s, v0.4s , v0.4s |
| 122 | addp v1.4s, v1.4s , v1.4s |
| 123 | uxtl v2.8h, v2.8b |
| 124 | uxtl v3.8h, v3.8b |
| 125 | addp v2.4s, v2.4s , v2.4s |
| 126 | addp v3.4s, v3.4s , v3.4s |
| 127 | addp v2.4s, v2.4s , v2.4s |
| 128 | addp v3.4s, v3.4s , v3.4s |
| 129 | rshrn v5.8b, v0.8h, #2 |
| 130 | dup v21.8h, v5.h[0] |
| 131 | rshrn v6.8b, v3.8h, #2 |
| 132 | dup v20.8h, v6.h[0] |
| 133 | add v1.8h, v1.8h, v2.8h |
| 134 | rshrn v1.8b, v1.8h, #3 |
| 135 | dup v23.8h, v1.h[0] |
| 136 | mov v20.d[0], v23.d[0] |
| 137 | add v0.8h, v0.8h, v3.8h |
| 138 | rshrn v0.8b, v0.8h, #3 |
| 139 | dup v23.8h, v0.h[0] |
| 140 | mov v31.d[0], v23.d[0] |
| 141 | mov v28.d[0], v20.d[0] |
| 142 | mov v29.d[0], v20.d[1] |
| 143 | mov v30.d[0], v21.d[0] |
| 144 | b sad_comp |
| 145 | |
| 146 | left_only_available: |
| 147 | ld1 {v0.8b, v1.8b}, [x1] |
| 148 | uxtl v0.8h, v0.8b |
| 149 | uxtl v1.8h, v1.8b |
| 150 | addp v0.4s, v0.4s , v0.4s |
| 151 | addp v1.4s, v1.4s , v1.4s |
| 152 | addp v0.4s, v0.4s , v0.4s |
| 153 | addp v1.4s, v1.4s , v1.4s |
| 154 | rshrn v0.8b, v0.8h, #2 |
| 155 | rshrn v1.8b, v1.8h, #2 |
| 156 | |
| 157 | dup v28.8h , v1.h[0] |
| 158 | dup v29.8h , v1.h[0] |
| 159 | dup v30.8h, v0.h[0] |
| 160 | dup v31.8h, v0.h[0] |
| 161 | b sad_comp |
| 162 | |
| 163 | top_only_available: |
| 164 | add x6, x1, #18 |
| 165 | ld1 {v0.8b, v1.8b}, [x6] |
| 166 | uxtl v0.8h, v0.8b |
| 167 | uxtl v1.8h, v1.8b |
| 168 | addp v0.4s, v0.4s , v0.4s |
| 169 | addp v1.4s, v1.4s , v1.4s |
| 170 | addp v0.4s, v0.4s , v0.4s |
| 171 | addp v1.4s, v1.4s , v1.4s |
| 172 | rshrn v0.8b, v0.8h, #2 |
| 173 | rshrn v1.8b, v1.8h, #2 |
| 174 | dup v28.8h , v0.h[0] |
| 175 | dup v30.8h, v1.h[0] |
| 176 | mov v29.d[0], v30.d[1] |
| 177 | mov v30.d[0], v28.d[0] |
| 178 | mov v31.d[0], v30.d[1] |
| 179 | b sad_comp |
| 180 | none_available: |
| 181 | mov w20, #128 |
| 182 | dup v28.16b, w20 |
| 183 | dup v29.16b, w20 |
| 184 | dup v30.16b, w20 |
| 185 | dup v31.16b, w20 |
| 186 | |
| 187 | |
| 188 | |
| 189 | sad_comp: |
| 190 | add x6, x1, #18 |
| 191 | ld1 {v10.8b, v11.8b}, [x6] // vertical values |
| 192 | |
| 193 | ld1 {v27.8h}, [x1] |
| 194 | |
| 195 | dup v20.8h, v27.h[7] ///HORIZONTAL VALUE ROW=0// |
| 196 | dup v21.8h, v27.h[7] |
| 197 | |
| 198 | ld1 { v0.8b, v1.8b}, [x0], x3 |
| 199 | |
| 200 | |
| 201 | ///vertical row 0@ |
| 202 | uabdl v16.8h, v0.8b, v10.8b |
| 203 | uabdl v18.8h, v1.8b, v11.8b |
| 204 | |
| 205 | ///HORZ row 0@ |
| 206 | uabdl v26.8h, v0.8b, v20.8b |
| 207 | uabdl v14.8h, v1.8b, v21.8b |
| 208 | |
| 209 | ld1 {v2.8b, v3.8b}, [x0], x3 |
| 210 | |
| 211 | |
| 212 | |
| 213 | ///dc row 0@ |
| 214 | uabdl v22.8h, v0.8b, v28.8b |
| 215 | uabdl v24.8h, v1.8b, v29.8b |
| 216 | |
| 217 | |
| 218 | dup v20.8h, v27.h[6] |
| 219 | dup v21.8h, v27.h[6] ///HORIZONTAL VALUE ROW=1// |
| 220 | |
| 221 | ///vertical row 1@ |
| 222 | uabal v16.8h, v2.8b, v10.8b |
| 223 | uabal v18.8h, v3.8b, v11.8b |
| 224 | |
| 225 | ld1 { v4.8b, v5.8b}, [x0], x3 |
| 226 | |
| 227 | ///HORZ row 1@ |
| 228 | uabal v26.8h, v2.8b, v20.8b |
| 229 | uabal v14.8h, v3.8b, v21.8b |
| 230 | |
| 231 | ///dc row 1@ |
| 232 | uabal v22.8h, v2.8b, v28.8b |
| 233 | uabal v24.8h, v3.8b, v29.8b |
| 234 | |
| 235 | dup v20.8h, v27.h[5] |
| 236 | dup v21.8h, v27.h[5] ///HORIZONTAL VALUE ROW=2// |
| 237 | |
| 238 | ///vertical row 2@ |
| 239 | uabal v16.8h, v4.8b, v10.8b |
| 240 | uabal v18.8h, v5.8b, v11.8b |
| 241 | |
| 242 | ld1 { v6.8b, v7.8b}, [x0], x3 |
| 243 | ///HORZ row 2@ |
| 244 | uabal v26.8h, v4.8b, v20.8b |
| 245 | uabal v14.8h, v5.8b, v21.8b |
| 246 | |
| 247 | ///dc row 2@ |
| 248 | uabal v22.8h, v4.8b, v28.8b |
| 249 | uabal v24.8h, v5.8b, v29.8b |
| 250 | |
| 251 | dup v20.8h, v27.h[4] |
| 252 | dup v21.8h, v27.h[4] ///HORIZONTAL VALUE ROW=3// |
| 253 | |
| 254 | ///vertical row 3@ |
| 255 | uabal v16.8h, v6.8b, v10.8b |
| 256 | uabal v18.8h, v7.8b, v11.8b |
| 257 | |
| 258 | ///HORZ row 3@ |
| 259 | uabal v26.8h, v6.8b, v20.8b |
| 260 | uabal v14.8h, v7.8b, v21.8b |
| 261 | |
| 262 | ///dc row 3@ |
| 263 | uabal v22.8h, v6.8b, v28.8b |
| 264 | uabal v24.8h, v7.8b, v29.8b |
| 265 | |
| 266 | //---------------------------------------------------------------------------------------------- |
| 267 | ld1 { v0.8b, v1.8b}, [x0], x3 |
| 268 | |
| 269 | |
| 270 | dup v20.8h, v27.h[3] |
| 271 | dup v21.8h, v27.h[3] ///HORIZONTAL VALUE ROW=0// |
| 272 | |
| 273 | ///vertical row 0@ |
| 274 | uabal v16.8h, v0.8b, v10.8b |
| 275 | uabal v18.8h, v1.8b, v11.8b |
| 276 | |
| 277 | ///HORZ row 0@ |
| 278 | uabal v26.8h, v0.8b, v20.8b |
| 279 | uabal v14.8h, v1.8b, v21.8b |
| 280 | |
| 281 | ld1 { v2.8b, v3.8b}, [x0], x3 |
| 282 | |
| 283 | ///dc row 0@ |
| 284 | uabal v22.8h, v0.8b, v30.8b |
| 285 | uabal v24.8h, v1.8b, v31.8b |
| 286 | |
| 287 | dup v20.8h, v27.h[2] |
| 288 | dup v21.8h, v27.h[2] ///HORIZONTAL VALUE ROW=1// |
| 289 | |
| 290 | ///vertical row 1@ |
| 291 | uabal v16.8h, v2.8b, v10.8b |
| 292 | uabal v18.8h, v3.8b, v11.8b |
| 293 | |
| 294 | ///HORZ row 1@ |
| 295 | uabal v26.8h, v2.8b, v20.8b |
| 296 | uabal v14.8h, v3.8b, v21.8b |
| 297 | |
| 298 | ld1 { v4.8b, v5.8b}, [x0], x3 |
| 299 | |
| 300 | ///dc row 1@ |
| 301 | uabal v22.8h, v2.8b, v30.8b |
| 302 | uabal v24.8h, v3.8b, v31.8b |
| 303 | |
| 304 | dup v20.8h, v27.h[1] |
| 305 | dup v21.8h, v27.h[1] ///HORIZONTAL VALUE ROW=2// |
| 306 | |
| 307 | ///vertical row 2@ |
| 308 | uabal v16.8h, v4.8b, v10.8b |
| 309 | uabal v18.8h, v5.8b, v11.8b |
| 310 | |
| 311 | ///HORZ row 2@ |
| 312 | uabal v26.8h, v4.8b, v20.8b |
| 313 | uabal v14.8h, v5.8b, v21.8b |
| 314 | |
| 315 | ld1 {v6.8b, v7.8b}, [x0], x3 |
| 316 | |
| 317 | ///dc row 2@ |
| 318 | uabal v22.8h, v4.8b, v30.8b |
| 319 | uabal v24.8h, v5.8b, v31.8b |
| 320 | |
| 321 | dup v20.8h, v27.h[0] |
| 322 | dup v21.8h, v27.h[0] ///HORIZONTAL VALUE ROW=3// |
| 323 | |
| 324 | ///vertical row 3@ |
| 325 | uabal v16.8h, v6.8b, v10.8b |
| 326 | uabal v18.8h, v7.8b, v11.8b |
| 327 | |
| 328 | ///HORZ row 3@ |
| 329 | uabal v26.8h, v6.8b, v20.8b |
| 330 | uabal v14.8h, v7.8b, v21.8b |
| 331 | |
| 332 | ///dc row 3@ |
| 333 | uabal v22.8h, v6.8b, v30.8b |
| 334 | uabal v24.8h, v7.8b, v31.8b |
| 335 | |
| 336 | |
| 337 | //------------------------------------------- |
| 338 | |
| 339 | |
| 340 | //vert sum |
| 341 | |
| 342 | add v16.8h, v16.8h , v18.8h |
| 343 | mov v18.d[0], v16.d[1] |
| 344 | add v16.4h, v16.4h , v18.4h |
| 345 | uaddlp v16.2s, v16.4h |
| 346 | addp v16.2s, v16.2s, v16.2s |
| 347 | smov x8, v16.s[0] |
| 348 | |
| 349 | |
| 350 | //horz sum |
| 351 | |
| 352 | add v26.8h, v26.8h , v14.8h |
| 353 | mov v14.d[0], v26.d[1] |
| 354 | add v26.4h, v26.4h , v14.4h |
| 355 | uaddlp v26.2s, v26.4h |
| 356 | addp v26.2s, v26.2s, v26.2s |
| 357 | smov x9, v26.s[0] |
| 358 | |
| 359 | //dc sum |
| 360 | |
| 361 | add v24.8h, v22.8h , v24.8h ///DC |
| 362 | mov v25.d[0], v24.d[1] |
| 363 | add v24.4h, v24.4h , v25.4h ///DC |
| 364 | uaddlp v24.2s, v24.4h ///DC |
| 365 | addp v24.2s, v24.2s, v24.2s ///DC |
| 366 | smov x10, v24.s[0] //dc |
| 367 | |
| 368 | |
| 369 | |
| 370 | |
| 371 | mov x11, #1 |
| 372 | //----------------------- |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 373 | mov w0, w16 // u4_valid_intra_modes |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 374 | |
| 375 | //-------------------------------------------- |
| 376 | |
| 377 | |
| 378 | lsl x11, x11, #30 |
| 379 | |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 380 | ands w7, w0, #04 // vert mode valid???????????? |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 381 | csel x8, x11, x8, eq |
| 382 | |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 383 | ands w6, w0, #02 // horz mode valid???????????? |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 384 | csel x9, x11, x9, eq |
| 385 | |
Martin Storsjo | d91f49a | 2016-09-05 16:15:02 +0300 | [diff] [blame] | 386 | ands w6, w0, #01 // dc mode valid???????????? |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 387 | csel x10, x11, x10, eq |
| 388 | |
| 389 | |
| 390 | //--------------------------- |
| 391 | |
| 392 | mov x4, x17 |
| 393 | mov x6, x14 |
| 394 | mov x7, x15 |
| 395 | |
| 396 | //-------------------------- |
| 397 | |
| 398 | cmp x10, x9 |
| 399 | bgt not_dc |
| 400 | cmp x10, x8 |
| 401 | bgt do_vert |
| 402 | |
| 403 | ///---------------------- |
| 404 | //DO DC PREDICTION |
Martin Storsjo | a61d4e0 | 2015-06-16 07:32:52 +0200 | [diff] [blame] | 405 | str w10 , [x7] //MIN SAD |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 406 | |
Martin Storsjo | a61d4e0 | 2015-06-16 07:32:52 +0200 | [diff] [blame] | 407 | mov w10, #0 |
| 408 | str w10 , [x6] // MODE |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 409 | |
| 410 | b do_dc_vert |
| 411 | //----------------------------- |
| 412 | |
| 413 | not_dc: |
| 414 | cmp x9, x8 |
| 415 | bgt do_vert |
| 416 | ///---------------------- |
| 417 | //DO HORIZONTAL |
Martin Storsjo | a61d4e0 | 2015-06-16 07:32:52 +0200 | [diff] [blame] | 418 | str w9 , [x7] //MIN SAD |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 419 | |
Martin Storsjo | a61d4e0 | 2015-06-16 07:32:52 +0200 | [diff] [blame] | 420 | mov w10, #1 |
| 421 | str w10 , [x6] // MODE |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 422 | ld1 {v0.8h}, [x1] |
| 423 | |
| 424 | dup v10.8h, v0.h[7] |
| 425 | dup v11.8h, v0.h[6] |
| 426 | dup v12.8h, v0.h[5] |
| 427 | dup v13.8h, v0.h[4] |
| 428 | st1 {v10.8h}, [x2], x4 |
| 429 | dup v14.8h, v0.h[3] |
| 430 | st1 {v11.8h}, [x2], x4 |
| 431 | dup v15.8h, v0.h[2] |
| 432 | st1 {v12.8h}, [x2], x4 |
| 433 | dup v16.8h, v0.h[1] |
| 434 | st1 {v13.8h}, [x2], x4 |
| 435 | dup v17.8h, v0.h[0] |
| 436 | st1 {v14.8h}, [x2], x4 |
| 437 | st1 {v15.8h}, [x2], x4 |
| 438 | st1 {v16.8h}, [x2], x4 |
| 439 | st1 {v17.8h}, [x2], x4 |
| 440 | |
| 441 | b end_func |
| 442 | |
| 443 | do_vert: |
| 444 | //DO VERTICAL PREDICTION |
Martin Storsjo | a61d4e0 | 2015-06-16 07:32:52 +0200 | [diff] [blame] | 445 | str w8 , [x7] //MIN SAD |
| 446 | mov w8, #2 |
| 447 | str w8 , [x6] // MODE |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 448 | add x6, x1, #18 |
| 449 | ld1 {v28.8b, v29.8b}, [x6] // vertical values |
| 450 | ld1 {v30.8b, v31.8b}, [x6] // vertical values |
| 451 | |
| 452 | do_dc_vert: |
| 453 | st1 {v28.2s, v29.2s} , [x2], x4 //0 |
| 454 | st1 {v28.2s, v29.2s} , [x2], x4 //1 |
| 455 | st1 {v28.2s, v29.2s} , [x2], x4 //2 |
| 456 | st1 {v28.2s, v29.2s} , [x2], x4 //3 |
| 457 | st1 {v30.2s, v31.2s} , [x2], x4 //4 |
| 458 | st1 {v30.2s, v31.2s} , [x2], x4 //5 |
| 459 | st1 {v30.2s, v31.2s} , [x2], x4 //6 |
| 460 | st1 {v30.2s, v31.2s} , [x2], x4 //7 |
| 461 | |
| 462 | end_func: |
| 463 | // LDMFD sp!,{x4-x12,PC} //Restoring registers from stack |
| 464 | ldp x19, x20, [sp], #16 |
| 465 | pop_v_regs |
| 466 | ret |
| 467 | |
| 468 | |