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  1. /*
  2.  * Alpha optimized DSP utils
  3.  * copyright (c) 2002 Falk Hueffner <falk@debian.org>
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. /* Some BSDs don't seem to have regdef.h... sigh  */
  23. #ifndef AVCODEC_ALPHA_REGDEF_H
  24. #define AVCODEC_ALPHA_REGDEF_H
  25.  
  26. #define v0      $0      /* function return value */
  27.  
  28. #define t0      $1      /* temporary registers (caller-saved) */
  29. #define t1      $2
  30. #define t2      $3
  31. #define t3      $4
  32. #define t4      $5
  33. #define t5      $6
  34. #define t6      $7
  35. #define t7      $8
  36.  
  37. #define s0      $9      /* saved-registers (callee-saved registers) */
  38. #define s1      $10
  39. #define s2      $11
  40. #define s3      $12
  41. #define s4      $13
  42. #define s5      $14
  43. #define s6      $15
  44. #define fp      s6      /* frame-pointer (s6 in frame-less procedures) */
  45.  
  46. #define a0      $16     /* argument registers (caller-saved) */
  47. #define a1      $17
  48. #define a2      $18
  49. #define a3      $19
  50. #define a4      $20
  51. #define a5      $21
  52.  
  53. #define t8      $22     /* more temps (caller-saved) */
  54. #define t9      $23
  55. #define t10     $24
  56. #define t11     $25
  57. #define ra      $26     /* return address register */
  58. #define t12     $27
  59.  
  60. #define pv      t12     /* procedure-variable register */
  61. #define AT      $at     /* assembler temporary */
  62. #define gp      $29     /* global pointer */
  63. #define sp      $30     /* stack pointer */
  64. #define zero    $31     /* reads as zero, writes are noops */
  65.  
  66. /* Some nicer register names.  */
  67. #define ta t10
  68. #define tb t11
  69. #define tc t12
  70. #define td AT
  71. /* Danger: these overlap with the argument list and the return value */
  72. #define te a5
  73. #define tf a4
  74. #define tg a3
  75. #define th v0
  76.  
  77. #endif /* AVCODEC_ALPHA_REGDEF_H */
  78.