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subtract_mmi.c

subtract_mmi.c 19 KB
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  1. /*
    2. 

  2.  *  Copyright (c) 2017 The WebM project authors. All Rights Reserved.
    3. 

  3.  *
    4. 

  4.  *  Use of this source code is governed by a BSD-style license
    5. 

  5.  *  that can be found in the LICENSE file in the root of the source
    6. 

  6.  *  tree. An additional intellectual property rights grant can be found
    7. 

  7.  *  in the file PATENTS.  All contributing project authors may
    8. 

  8.  *  be found in the AUTHORS file in the root of the source tree.
    9. 

  9.  */
    10. 

  10. 

  11. #include "./vpx_dsp_rtcd.h"
    12. 

  12. #include "vpx/vpx_integer.h"
    13. 

  13. #include "vpx_ports/mem.h"
    14. 

  14. #include "vpx_ports/asmdefs_mmi.h"
    15. 

  15. 

  16. void vpx_subtract_block_mmi(int rows, int cols, int16_t *diff,
    17. 

  17.                             ptrdiff_t diff_stride, const uint8_t *src,
    18. 

  18.                             ptrdiff_t src_stride, const uint8_t *pred,
    19. 

  19.                             ptrdiff_t pred_stride) {
    20. 

  20.   double ftmp[13];
    21. 

  21.   uint32_t tmp[1];
    22. 

  22. 

  23.   if (rows == cols) {
    24. 

  24.     switch (rows) {
    25. 

  25.       case 4:
    26. 

  26.         __asm__ volatile(
    27. 

  27.             "xor        %[ftmp0],   %[ftmp0],           %[ftmp0]        \n\t"
    28. 

  28. #if _MIPS_SIM == _ABIO32
    29. 

  29.             "ulw        %[tmp0],    0x00(%[src])                        \n\t"
    30. 

  30.             "mtc1       %[tmp0],    %[ftmp1]                            \n\t"
    31. 

  31.             "ulw        %[tmp0],    0x00(%[pred])                       \n\t"
    32. 

  32.             "mtc1       %[tmp0],    %[ftmp2]                            \n\t"
    33. 

  33. #else
    34. 

  34.             "gslwlc1    %[ftmp1],   0x03(%[src])                        \n\t"
    35. 

  35.             "gslwrc1    %[ftmp1],   0x00(%[src])                        \n\t"
    36. 

  36.             "gslwlc1    %[ftmp2],   0x03(%[pred])                       \n\t"
    37. 

  37.             "gslwrc1    %[ftmp2],   0x00(%[pred])                       \n\t"
    38. 

  38. #endif
    39. 

  39.             MMI_ADDU(%[src], %[src], %[src_stride])
    40. 

  40.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    41. 

  41. 

  42. #if _MIPS_SIM == _ABIO32
    43. 

  43.             "ulw        %[tmp0],    0x00(%[src])                        \n\t"
    44. 

  44.             "mtc1       %[tmp0],    %[ftmp3]                            \n\t"
    45. 

  45.             "ulw        %[tmp0],    0x00(%[pred])                       \n\t"
    46. 

  46.             "mtc1       %[tmp0],    %[ftmp4]                            \n\t"
    47. 

  47. #else
    48. 

  48.             "gslwlc1    %[ftmp3],   0x03(%[src])                        \n\t"
    49. 

  49.             "gslwrc1    %[ftmp3],   0x00(%[src])                        \n\t"
    50. 

  50.             "gslwlc1    %[ftmp4],   0x03(%[pred])                       \n\t"
    51. 

  51.             "gslwrc1    %[ftmp4],   0x00(%[pred])                       \n\t"
    52. 

  52. #endif
    53. 

  53.             MMI_ADDU(%[src], %[src], %[src_stride])
    54. 

  54.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    55. 

  55. 

  56. #if _MIPS_SIM == _ABIO32
    57. 

  57.             "ulw        %[tmp0],    0x00(%[src])                        \n\t"
    58. 

  58.             "mtc1       %[tmp0],    %[ftmp5]                            \n\t"
    59. 

  59.             "ulw        %[tmp0],    0x00(%[pred])                       \n\t"
    60. 

  60.             "mtc1       %[tmp0],    %[ftmp6]                            \n\t"
    61. 

  61. #else
    62. 

  62.             "gslwlc1    %[ftmp5],   0x03(%[src])                        \n\t"
    63. 

  63.             "gslwrc1    %[ftmp5],   0x00(%[src])                        \n\t"
    64. 

  64.             "gslwlc1    %[ftmp6],   0x03(%[pred])                       \n\t"
    65. 

  65.             "gslwrc1    %[ftmp6],   0x00(%[pred])                       \n\t"
    66. 

  66. #endif
    67. 

  67.             MMI_ADDU(%[src], %[src], %[src_stride])
    68. 

  68.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    69. 

  69. 

  70. #if _MIPS_SIM == _ABIO32
    71. 

  71.             "ulw        %[tmp0],    0x00(%[src])                        \n\t"
    72. 

  72.             "mtc1       %[tmp0],    %[ftmp7]                            \n\t"
    73. 

  73.             "ulw        %[tmp0],    0x00(%[pred])                       \n\t"
    74. 

  74.             "mtc1       %[tmp0],    %[ftmp8]                            \n\t"
    75. 

  75. #else
    76. 

  76.             "gslwlc1    %[ftmp7],   0x03(%[src])                        \n\t"
    77. 

  77.             "gslwrc1    %[ftmp7],   0x00(%[src])                        \n\t"
    78. 

  78.             "gslwlc1    %[ftmp8],   0x03(%[pred])                       \n\t"
    79. 

  79.             "gslwrc1    %[ftmp8],   0x00(%[pred])                       \n\t"
    80. 

  80. #endif
    81. 

  81.             "punpcklbh  %[ftmp9],   %[ftmp1],           %[ftmp0]        \n\t"
    82. 

  82.             "punpcklbh  %[ftmp10],  %[ftmp2],           %[ftmp0]        \n\t"
    83. 

  83.             "psubh      %[ftmp11],  %[ftmp9],           %[ftmp10]       \n\t"
    84. 

  84.             "gssdlc1    %[ftmp11],  0x07(%[diff])                       \n\t"
    85. 

  85.             "gssdrc1    %[ftmp11],  0x00(%[diff])                       \n\t"
    86. 

  86.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    87. 

  87.             "punpcklbh  %[ftmp9],   %[ftmp3],           %[ftmp0]        \n\t"
    88. 

  88.             "punpcklbh  %[ftmp10],  %[ftmp4],           %[ftmp0]        \n\t"
    89. 

  89.             "psubh      %[ftmp11],  %[ftmp9],           %[ftmp10]       \n\t"
    90. 

  90.             "gssdlc1    %[ftmp11],  0x07(%[diff])                       \n\t"
    91. 

  91.             "gssdrc1    %[ftmp11],  0x00(%[diff])                       \n\t"
    92. 

  92.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    93. 

  93.             "punpcklbh  %[ftmp9],   %[ftmp5],           %[ftmp0]        \n\t"
    94. 

  94.             "punpcklbh  %[ftmp10],  %[ftmp6],           %[ftmp0]        \n\t"
    95. 

  95.             "psubh      %[ftmp11],  %[ftmp9],           %[ftmp10]       \n\t"
    96. 

  96.             "gssdlc1    %[ftmp11],  0x07(%[diff])                       \n\t"
    97. 

  97.             "gssdrc1    %[ftmp11],  0x00(%[diff])                       \n\t"
    98. 

  98.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    99. 

  99.             "punpcklbh  %[ftmp9],   %[ftmp7],           %[ftmp0]        \n\t"
    100. 

  100.             "punpcklbh  %[ftmp10],  %[ftmp8],           %[ftmp0]        \n\t"
    101. 

  101.             "psubh      %[ftmp11],  %[ftmp9],           %[ftmp10]       \n\t"
    102. 

  102.             "gssdlc1    %[ftmp11],  0x07(%[diff])                       \n\t"
    103. 

  103.             "gssdrc1    %[ftmp11],  0x00(%[diff])                       \n\t"
    104. 

  104.             : [ftmp0] "=&f"(ftmp[0]), [ftmp1] "=&f"(ftmp[1]),
    105. 

  105.               [ftmp2] "=&f"(ftmp[2]), [ftmp3] "=&f"(ftmp[3]),
    106. 

  106.               [ftmp4] "=&f"(ftmp[4]), [ftmp5] "=&f"(ftmp[5]),
    107. 

  107.               [ftmp6] "=&f"(ftmp[6]), [ftmp7] "=&f"(ftmp[7]),
    108. 

  108.               [ftmp8] "=&f"(ftmp[8]), [ftmp9] "=&f"(ftmp[9]),
    109. 

  109.               [ftmp10] "=&f"(ftmp[10]), [ftmp11] "=&f"(ftmp[11]),
    110. 

  110. #if _MIPS_SIM == _ABIO32
    111. 

  111.               [tmp0] "=&r"(tmp[0]),
    112. 

  112. #endif
    113. 

  113.               [src] "+&r"(src), [pred] "+&r"(pred), [diff] "+&r"(diff)
    114. 

  114.             : [src_stride] "r"((mips_reg)src_stride),
    115. 

  115.               [pred_stride] "r"((mips_reg)pred_stride),
    116. 

  116.               [diff_stride] "r"((mips_reg)(diff_stride * 2))
    117. 

  117.             : "memory");
    118. 

  118.         break;
    119. 

  119.       case 8:
    120. 

  120.         __asm__ volatile(
    121. 

  121.             "xor        %[ftmp0],   %[ftmp0],           %[ftmp0]        \n\t"
    122. 

  122.             "li         %[tmp0],    0x02                                \n\t"
    123. 

  123.             "1:                                                         \n\t"
    124. 

  124.             "gsldlc1    %[ftmp1],   0x07(%[src])                        \n\t"
    125. 

  125.             "gsldrc1    %[ftmp1],   0x00(%[src])                        \n\t"
    126. 

  126.             "gsldlc1    %[ftmp2],   0x07(%[pred])                       \n\t"
    127. 

  127.             "gsldrc1    %[ftmp2],   0x00(%[pred])                       \n\t"
    128. 

  128.             MMI_ADDU(%[src], %[src], %[src_stride])
    129. 

  129.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    130. 

  130.             "gsldlc1    %[ftmp3],   0x07(%[src])                        \n\t"
    131. 

  131.             "gsldrc1    %[ftmp3],   0x00(%[src])                        \n\t"
    132. 

  132.             "gsldlc1    %[ftmp4],   0x07(%[pred])                       \n\t"
    133. 

  133.             "gsldrc1    %[ftmp4],   0x00(%[pred])                       \n\t"
    134. 

  134.             MMI_ADDU(%[src], %[src], %[src_stride])
    135. 

  135.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    136. 

  136.             "gsldlc1    %[ftmp5],   0x07(%[src])                        \n\t"
    137. 

  137.             "gsldrc1    %[ftmp5],   0x00(%[src])                        \n\t"
    138. 

  138.             "gsldlc1    %[ftmp6],   0x07(%[pred])                       \n\t"
    139. 

  139.             "gsldrc1    %[ftmp6],   0x00(%[pred])                       \n\t"
    140. 

  140.             MMI_ADDU(%[src], %[src], %[src_stride])
    141. 

  141.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    142. 

  142.             "gsldlc1    %[ftmp7],   0x07(%[src])                        \n\t"
    143. 

  143.             "gsldrc1    %[ftmp7],   0x00(%[src])                        \n\t"
    144. 

  144.             "gsldlc1    %[ftmp8],   0x07(%[pred])                       \n\t"
    145. 

  145.             "gsldrc1    %[ftmp8],   0x00(%[pred])                       \n\t"
    146. 

  146.             MMI_ADDU(%[src], %[src], %[src_stride])
    147. 

  147.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    148. 

  148.             "punpcklbh  %[ftmp9],   %[ftmp1],           %[ftmp0]        \n\t"
    149. 

  149.             "punpckhbh  %[ftmp10],  %[ftmp1],           %[ftmp0]        \n\t"
    150. 

  150.             "punpcklbh  %[ftmp11],  %[ftmp2],           %[ftmp0]        \n\t"
    151. 

  151.             "punpckhbh  %[ftmp12],  %[ftmp2],           %[ftmp0]        \n\t"
    152. 

  152.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    153. 

  153.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    154. 

  154.             "gssdlc1    %[ftmp9],   0x07(%[diff])                       \n\t"
    155. 

  155.             "gssdrc1    %[ftmp9],   0x00(%[diff])                       \n\t"
    156. 

  156.             "gssdlc1    %[ftmp10],  0x0f(%[diff])                       \n\t"
    157. 

  157.             "gssdrc1    %[ftmp10],  0x08(%[diff])                       \n\t"
    158. 

  158.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    159. 

  159.             "punpcklbh  %[ftmp9],   %[ftmp3],           %[ftmp0]        \n\t"
    160. 

  160.             "punpckhbh  %[ftmp10],  %[ftmp3],           %[ftmp0]        \n\t"
    161. 

  161.             "punpcklbh  %[ftmp11],  %[ftmp4],           %[ftmp0]        \n\t"
    162. 

  162.             "punpckhbh  %[ftmp12],  %[ftmp4],           %[ftmp0]        \n\t"
    163. 

  163.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    164. 

  164.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    165. 

  165.             "gssdlc1    %[ftmp9],   0x07(%[diff])                       \n\t"
    166. 

  166.             "gssdrc1    %[ftmp9],   0x00(%[diff])                       \n\t"
    167. 

  167.             "gssdlc1    %[ftmp10],  0x0f(%[diff])                       \n\t"
    168. 

  168.             "gssdrc1    %[ftmp10],  0x08(%[diff])                       \n\t"
    169. 

  169.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    170. 

  170.             "punpcklbh  %[ftmp9],   %[ftmp5],           %[ftmp0]        \n\t"
    171. 

  171.             "punpckhbh  %[ftmp10],  %[ftmp5],           %[ftmp0]        \n\t"
    172. 

  172.             "punpcklbh  %[ftmp11],  %[ftmp6],           %[ftmp0]        \n\t"
    173. 

  173.             "punpckhbh  %[ftmp12],  %[ftmp6],           %[ftmp0]        \n\t"
    174. 

  174.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    175. 

  175.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    176. 

  176.             "gssdlc1    %[ftmp9],   0x07(%[diff])                       \n\t"
    177. 

  177.             "gssdrc1    %[ftmp9],   0x00(%[diff])                       \n\t"
    178. 

  178.             "gssdlc1    %[ftmp10],  0x0f(%[diff])                       \n\t"
    179. 

  179.             "gssdrc1    %[ftmp10],  0x08(%[diff])                       \n\t"
    180. 

  180.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    181. 

  181.             "punpcklbh  %[ftmp9],   %[ftmp7],           %[ftmp0]        \n\t"
    182. 

  182.             "punpckhbh  %[ftmp10],  %[ftmp7],           %[ftmp0]        \n\t"
    183. 

  183.             "punpcklbh  %[ftmp11],  %[ftmp8],           %[ftmp0]        \n\t"
    184. 

  184.             "punpckhbh  %[ftmp12],  %[ftmp8],           %[ftmp0]        \n\t"
    185. 

  185.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    186. 

  186.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    187. 

  187.             "gssdlc1    %[ftmp9],   0x07(%[diff])                       \n\t"
    188. 

  188.             "gssdrc1    %[ftmp9],   0x00(%[diff])                       \n\t"
    189. 

  189.             "gssdlc1    %[ftmp10],  0x0f(%[diff])                       \n\t"
    190. 

  190.             "gssdrc1    %[ftmp10],  0x08(%[diff])                       \n\t"
    191. 

  191.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    192. 

  192.             "addiu      %[tmp0],    %[tmp0],            -0x01           \n\t"
    193. 

  193.             "bnez       %[tmp0],    1b                                  \n\t"
    194. 

  194.             : [ftmp0] "=&f"(ftmp[0]), [ftmp1] "=&f"(ftmp[1]),
    195. 

  195.               [ftmp2] "=&f"(ftmp[2]), [ftmp3] "=&f"(ftmp[3]),
    196. 

  196.               [ftmp4] "=&f"(ftmp[4]), [ftmp5] "=&f"(ftmp[5]),
    197. 

  197.               [ftmp6] "=&f"(ftmp[6]), [ftmp7] "=&f"(ftmp[7]),
    198. 

  198.               [ftmp8] "=&f"(ftmp[8]), [ftmp9] "=&f"(ftmp[9]),
    199. 

  199.               [ftmp10] "=&f"(ftmp[10]), [ftmp11] "=&f"(ftmp[11]),
    200. 

  200.               [ftmp12] "=&f"(ftmp[12]), [tmp0] "=&r"(tmp[0]), [src] "+&r"(src),
    201. 

  201.               [pred] "+&r"(pred), [diff] "+&r"(diff)
    202. 

  202.             : [pred_stride] "r"((mips_reg)pred_stride),
    203. 

  203.               [src_stride] "r"((mips_reg)src_stride),
    204. 

  204.               [diff_stride] "r"((mips_reg)(diff_stride * 2))
    205. 

  205.             : "memory");
    206. 

  206.         break;
    207. 

  207.       case 16:
    208. 

  208.         __asm__ volatile(
    209. 

  209.             "xor        %[ftmp0],   %[ftmp0],           %[ftmp0]        \n\t"
    210. 

  210.             "li         %[tmp0],    0x08                                \n\t"
    211. 

  211.             "1:                                                         \n\t"
    212. 

  212.             "gsldlc1    %[ftmp1],   0x07(%[src])                        \n\t"
    213. 

  213.             "gsldrc1    %[ftmp1],   0x00(%[src])                        \n\t"
    214. 

  214.             "gsldlc1    %[ftmp2],   0x07(%[pred])                       \n\t"
    215. 

  215.             "gsldrc1    %[ftmp2],   0x00(%[pred])                       \n\t"
    216. 

  216.             "gsldlc1    %[ftmp3],   0x0f(%[src])                        \n\t"
    217. 

  217.             "gsldrc1    %[ftmp3],   0x08(%[src])                        \n\t"
    218. 

  218.             "gsldlc1    %[ftmp4],   0x0f(%[pred])                       \n\t"
    219. 

  219.             "gsldrc1    %[ftmp4],   0x08(%[pred])                       \n\t"
    220. 

  220.             MMI_ADDU(%[src], %[src], %[src_stride])
    221. 

  221.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    222. 

  222.             "gsldlc1    %[ftmp5],   0x07(%[src])                        \n\t"
    223. 

  223.             "gsldrc1    %[ftmp5],   0x00(%[src])                        \n\t"
    224. 

  224.             "gsldlc1    %[ftmp6],   0x07(%[pred])                       \n\t"
    225. 

  225.             "gsldrc1    %[ftmp6],   0x00(%[pred])                       \n\t"
    226. 

  226.             "gsldlc1    %[ftmp7],   0x0f(%[src])                        \n\t"
    227. 

  227.             "gsldrc1    %[ftmp7],   0x08(%[src])                        \n\t"
    228. 

  228.             "gsldlc1    %[ftmp8],   0x0f(%[pred])                       \n\t"
    229. 

  229.             "gsldrc1    %[ftmp8],   0x08(%[pred])                       \n\t"
    230. 

  230.             MMI_ADDU(%[src], %[src], %[src_stride])
    231. 

  231.             MMI_ADDU(%[pred], %[pred], %[pred_stride])
    232. 

  232.             "punpcklbh  %[ftmp9],   %[ftmp1],           %[ftmp0]        \n\t"
    233. 

  233.             "punpckhbh  %[ftmp10],  %[ftmp1],           %[ftmp0]        \n\t"
    234. 

  234.             "punpcklbh  %[ftmp11],  %[ftmp2],           %[ftmp0]        \n\t"
    235. 

  235.             "punpckhbh  %[ftmp12],  %[ftmp2],           %[ftmp0]        \n\t"
    236. 

  236.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    237. 

  237.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    238. 

  238.             "gssdlc1    %[ftmp9],   0x07(%[diff])                       \n\t"
    239. 

  239.             "gssdrc1    %[ftmp9],   0x00(%[diff])                       \n\t"
    240. 

  240.             "gssdlc1    %[ftmp10],  0x0f(%[diff])                       \n\t"
    241. 

  241.             "gssdrc1    %[ftmp10],  0x08(%[diff])                       \n\t"
    242. 

  242.             "punpcklbh  %[ftmp9],   %[ftmp3],           %[ftmp0]        \n\t"
    243. 

  243.             "punpckhbh  %[ftmp10],  %[ftmp3],           %[ftmp0]        \n\t"
    244. 

  244.             "punpcklbh  %[ftmp11],  %[ftmp4],           %[ftmp0]        \n\t"
    245. 

  245.             "punpckhbh  %[ftmp12],  %[ftmp4],           %[ftmp0]        \n\t"
    246. 

  246.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    247. 

  247.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    248. 

  248.             "gssdlc1    %[ftmp9],   0x17(%[diff])                       \n\t"
    249. 

  249.             "gssdrc1    %[ftmp9],   0x10(%[diff])                       \n\t"
    250. 

  250.             "gssdlc1    %[ftmp10],  0x1f(%[diff])                       \n\t"
    251. 

  251.             "gssdrc1    %[ftmp10],  0x18(%[diff])                       \n\t"
    252. 

  252.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    253. 

  253.             "punpcklbh  %[ftmp9],   %[ftmp5],           %[ftmp0]        \n\t"
    254. 

  254.             "punpckhbh  %[ftmp10],  %[ftmp5],           %[ftmp0]        \n\t"
    255. 

  255.             "punpcklbh  %[ftmp11],  %[ftmp6],           %[ftmp0]        \n\t"
    256. 

  256.             "punpckhbh  %[ftmp12],  %[ftmp6],           %[ftmp0]        \n\t"
    257. 

  257.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    258. 

  258.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    259. 

  259.             "gssdlc1    %[ftmp9],   0x07(%[diff])                       \n\t"
    260. 

  260.             "gssdrc1    %[ftmp9],   0x00(%[diff])                       \n\t"
    261. 

  261.             "gssdlc1    %[ftmp10],  0x0f(%[diff])                       \n\t"
    262. 

  262.             "gssdrc1    %[ftmp10],  0x08(%[diff])                       \n\t"
    263. 

  263.             "punpcklbh  %[ftmp9],   %[ftmp7],           %[ftmp0]        \n\t"
    264. 

  264.             "punpckhbh  %[ftmp10],  %[ftmp7],           %[ftmp0]        \n\t"
    265. 

  265.             "punpcklbh  %[ftmp11],  %[ftmp8],           %[ftmp0]        \n\t"
    266. 

  266.             "punpckhbh  %[ftmp12],  %[ftmp8],           %[ftmp0]        \n\t"
    267. 

  267.             "psubsh     %[ftmp9],   %[ftmp9],           %[ftmp11]       \n\t"
    268. 

  268.             "psubsh     %[ftmp10],  %[ftmp10],          %[ftmp12]       \n\t"
    269. 

  269.             "gssdlc1    %[ftmp9],   0x17(%[diff])                       \n\t"
    270. 

  270.             "gssdrc1    %[ftmp9],   0x10(%[diff])                       \n\t"
    271. 

  271.             "gssdlc1    %[ftmp10],  0x1f(%[diff])                       \n\t"
    272. 

  272.             "gssdrc1    %[ftmp10],  0x18(%[diff])                       \n\t"
    273. 

  273.             MMI_ADDU(%[diff], %[diff], %[diff_stride])
    274. 

  274.             "addiu      %[tmp0],    %[tmp0],            -0x01           \n\t"
    275. 

  275.             "bnez       %[tmp0],    1b                                  \n\t"
    276. 

  276.             : [ftmp0] "=&f"(ftmp[0]), [ftmp1] "=&f"(ftmp[1]),
    277. 

  277.               [ftmp2] "=&f"(ftmp[2]), [ftmp3] "=&f"(ftmp[3]),
    278. 

  278.               [ftmp4] "=&f"(ftmp[4]), [ftmp5] "=&f"(ftmp[5]),
    279. 

  279.               [ftmp6] "=&f"(ftmp[6]), [ftmp7] "=&f"(ftmp[7]),
    280. 

  280.               [ftmp8] "=&f"(ftmp[8]), [ftmp9] "=&f"(ftmp[9]),
    281. 

  281.               [ftmp10] "=&f"(ftmp[10]), [ftmp11] "=&f"(ftmp[11]),
    282. 

  282.               [ftmp12] "=&f"(ftmp[12]), [tmp0] "=&r"(tmp[0]), [src] "+&r"(src),
    283. 

  283.               [pred] "+&r"(pred), [diff] "+&r"(diff)
    284. 

  284.             : [pred_stride] "r"((mips_reg)pred_stride),
    285. 

  285.               [src_stride] "r"((mips_reg)src_stride),
    286. 

  286.               [diff_stride] "r"((mips_reg)(diff_stride * 2))
    287. 

  287.             : "memory");
    288. 

  288.         break;
    289. 

  289.       case 32:
    290. 

  290.         vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride,
    291. 

  291.                              pred, pred_stride);
    292. 

  292.         break;
    293. 

  293.       case 64:
    294. 

  294.         vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride,
    295. 

  295.                              pred, pred_stride);
    296. 

  296.         break;
    297. 

  297.       default:
    298. 

  298.         vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride,
    299. 

  299.                              pred, pred_stride);
    300. 

  300.         break;
    301. 

  301.     }
    302. 

  302.   } else {
    303. 

  303.     vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride, pred,
    304. 

  304.                          pred_stride);
    305. 

  305.   }
    306. 

  306. }
    307.