fabsl.S 3.4 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121
  1. /*
  2. * Math library
  3. *
  4. * Copyright (C) 2016 Intel Corporation. All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * * Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * * Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in
  14. * the documentation and/or other materials provided with the
  15. * distribution.
  16. * * Neither the name of Intel Corporation nor the names of its
  17. * contributors may be used to endorse or promote products derived
  18. * from this software without specific prior written permission.
  19. *
  20. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31. *
  32. *
  33. * Author Name <jingwei.zhang@intel.com>
  34. * History:
  35. * 03-14-2016 Initial version. numerics svn rev. 12864
  36. */
  37. .file "fabsl.c"
  38. .text
  39. ..TXTST0:
  40. # -- Begin fabsl
  41. .text
  42. .align 16,0x90
  43. .globl fabsl
  44. fabsl:
  45. # parameter 1: 32 + %esp
  46. ..B1.1:
  47. ..L1:
  48. subl $28, %esp
  49. ..B1.2:
  50. fnstcw 14(%esp)
  51. ..B1.3:
  52. movzwl 14(%esp), %edx
  53. movl %edx, %eax
  54. andl $768, %eax
  55. cmpl $768, %eax
  56. je ..B1.15
  57. ..B1.4:
  58. orl $-64768, %edx
  59. movw %dx, 12(%esp)
  60. ..B1.5:
  61. fldcw 12(%esp)
  62. ..B1.6:
  63. movl $1, %eax
  64. ..B1.7:
  65. movzwl 40(%esp), %edx
  66. andl $32767, %edx
  67. cmpl $32767, %edx
  68. je ..B1.12
  69. ..B1.8:
  70. fldt 32(%esp)
  71. movzbl 41(%esp), %ecx
  72. andl $128, %ecx
  73. shrl $7, %ecx
  74. call ..L2
  75. ..L2:
  76. popl %edx
  77. lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%edx), %edx
  78. fmull ones@GOTOFF(%edx,%ecx,8)
  79. fstpt (%esp)
  80. ..B1.9:
  81. testl %eax, %eax
  82. je ..B1.11
  83. ..B1.10:
  84. fldcw 14(%esp)
  85. ..B1.11:
  86. fldt (%esp)
  87. addl $28, %esp
  88. ret
  89. ..B1.12:
  90. cmpl $-2147483648, 36(%esp)
  91. jne ..B1.14
  92. ..B1.13:
  93. cmpl $0, 32(%esp)
  94. je ..B1.8
  95. ..B1.14:
  96. fldt 32(%esp)
  97. movzbl 41(%esp), %edx
  98. fstpt (%esp)
  99. andl $127, %edx
  100. movb %dl, 9(%esp)
  101. jmp ..B1.9
  102. ..B1.15:
  103. xorl %eax, %eax
  104. jmp ..B1.7
  105. .align 16,0x90
  106. .type fabsl,@function
  107. .size fabsl,.-fabsl
  108. .data
  109. # -- End fabsl
  110. .section .rodata, "a"
  111. .align 8
  112. .align 8
  113. ones:
  114. .long 0x00000000,0x3ff00000
  115. .long 0x00000000,0xbff00000
  116. .type ones,@object
  117. .size ones,16
  118. .data
  119. .section .note.GNU-stack, ""
  120. # End