Home Explore Help
Sign In
alimiracle
/
LibertyBSD_kernel
Watch 3
Star 1
Fork 2
Files Issues 0 Pull Requests 0 Wiki
Tree: 6d546cb445
Branches Tags
LibertyBSD_k...
/
sys
/
lib
/
libkern
/
arch
/
i386
/
scanc.S

scanc.S 2.0 KB
History Raw

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657 
  1. /*	$OpenBSD: scanc.S,v 1.3 2014/11/29 18:51:23 tedu Exp $	*/
    2. 

  2. /*	$NetBSD: scanc.S,v 1.5 1994/10/26 06:39:13 cgd Exp $	*/
    3. 

  3. 

  4. /*
    5. 

  5.  * Copyright (c) 1994 Charles Hannum.  All rights reserved.
    6. 

  6.  *
    7. 

  7.  * Redistribution and use in source and binary forms, with or without
    8. 

  8.  * modification, are permitted provided that the following conditions
    9. 

  9.  * are met:
    10. 

  10.  * 1. Redistributions of source code must retain the above copyright
    11. 

  11.  *    notice, this list of conditions and the following disclaimer.
    12. 

  12.  * 2. Redistributions in binary form must reproduce the above copyright
    13. 

  13.  *    notice, this list of conditions and the following disclaimer in the
    14. 

  14.  *    documentation and/or other materials provided with the distribution.
    15. 

  15.  * 3. All advertising materials mentioning features or use of this software
    16. 

  16.  *    must display the following acknowledgement:
    17. 

  17.  *	This product includes software developed by Charles Hannum.
    18. 

  18.  * 4. The name of the author may not be used to endorse or promote products
    19. 

  19.  *    derived from this software without specific prior written permission.
    20. 

  20.  *
    21. 

  21.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    22. 

  22.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    23. 

  23.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    24. 

  24.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
    25. 

  25.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    26. 

  26.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    27. 

  27.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    28. 

  28.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    29. 

  29.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    30. 

  30.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    31. 

  31.  */
    32. 

  32. 

  33. #include "DEFS.h"
    34. 

  34. 

  35. ENTRY(scanc)
    36. 

  36. 	movl	4(%esp),%ecx
    37. 

  37. 	testl	%ecx,%ecx
    38. 

  38. 	jz	3f
    39. 

  39. 	pushl	%esi
    40. 

  40. 	pushl	%edi
    41. 

  41. 	movl	16(%esp),%esi
    42. 

  42. 	movl	20(%esp),%edi
    43. 

  43. 	movb	24(%esp),%dl
    44. 

  44. 	xorl	%eax,%eax
    45. 

  45. 1:
    46. 

  46. 	lodsb
    47. 

  47. 	testb	%dl,(%eax,%edi)
    48. 

  48. 	jnz	2f
    49. 

  49. 	decl	%ecx
    50. 

  50. 	jnz	1b
    51. 

  51. 2:
    52. 

  52. 	popl	%edi
    53. 

  53. 	popl	%esi
    54. 

  54. 3:
    55. 

  55. 	movl	%ecx,%eax
    56. 

  56. 	ret
    57. 

  57.