rintl.S 4.2 KB

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  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 "rintl.c"
  38. .text
  39. ..TXTST0:
  40. # -- Begin rintl
  41. .text
  42. .align 16,0x90
  43. .globl rintl
  44. rintl:
  45. # parameter 1: 8 + %ebp
  46. ..B1.1:
  47. ..L1:
  48. pushl %ebp
  49. movl %esp, %ebp
  50. andl $-16, %esp
  51. subl $16, %esp
  52. ..B1.2:
  53. fnstcw 14(%esp)
  54. ..B1.3:
  55. movzbl 17(%ebp), %edx
  56. movzwl 16(%ebp), %ecx
  57. andl $128, %edx
  58. andl $32767, %ecx
  59. shrl $7, %edx
  60. movzwl 14(%esp), %eax
  61. cmpl $16446, %ecx
  62. jge ..B1.13
  63. ..B1.4:
  64. movl %eax, %ecx
  65. andl $768, %ecx
  66. cmpl $768, %ecx
  67. je ..B1.20
  68. ..B1.5:
  69. orl $-64768, %eax
  70. movw %ax, 12(%esp)
  71. ..B1.6:
  72. fldcw 12(%esp)
  73. ..B1.7:
  74. movl $1, %eax
  75. ..B1.8:
  76. fldt 8(%ebp)
  77. testl %eax, %eax
  78. call ..L2
  79. ..L2:
  80. popl %ecx
  81. lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%ecx), %ecx
  82. fldl _TWO_63@GOTOFF(%ecx,%edx,8)
  83. fadd %st, %st(1)
  84. fsubrp %st, %st(1)
  85. fstpt 8(%ebp)
  86. je ..B1.10
  87. ..B1.9:
  88. fldcw 14(%esp)
  89. ..B1.10:
  90. fldt 8(%ebp)
  91. fldl _zeros@GOTOFF(%ecx)
  92. fucomp %st(1)
  93. fnstsw %ax
  94. sahf
  95. jp ..B1.12
  96. je ..B1.19
  97. ..B1.12:
  98. movl %ebp, %esp
  99. popl %ebp
  100. ret
  101. ..B1.13:
  102. movl %eax, %edx
  103. andl $768, %edx
  104. cmpl $768, %edx
  105. je ..B1.21
  106. ..B1.14:
  107. orl $-64768, %eax
  108. movw %ax, 12(%esp)
  109. ..B1.15:
  110. fldcw 12(%esp)
  111. ..B1.16:
  112. fldt 8(%ebp)
  113. fstpt (%esp)
  114. ..B1.17:
  115. fldcw 14(%esp)
  116. ..B1.18:
  117. fldt (%esp)
  118. movl %ebp, %esp
  119. popl %ebp
  120. ret
  121. ..B1.19:
  122. fstp %st(0)
  123. fldl _zeros@GOTOFF(%ecx,%edx,8)
  124. movl %ebp, %esp
  125. popl %ebp
  126. ret
  127. ..B1.20:
  128. xorl %eax, %eax
  129. jmp ..B1.8
  130. ..B1.21:
  131. fldt 8(%ebp)
  132. fstpt (%esp)
  133. jmp ..B1.18
  134. .align 16,0x90
  135. .type rintl,@function
  136. .size rintl,.-rintl
  137. .data
  138. # -- End rintl
  139. .section .rodata, "a"
  140. .align 4
  141. .align 4
  142. _TWO_63:
  143. .long 0
  144. .long 1138753536
  145. .long 0
  146. .long 3286237184
  147. .type _TWO_63,@object
  148. .size _TWO_63,16
  149. .align 4
  150. _zeros:
  151. .long 0
  152. .long 0
  153. .long 0
  154. .long 2147483648
  155. .type _zeros,@object
  156. .size _zeros,16
  157. .data
  158. .section .note.GNU-stack, ""
  159. # End