arch/arm/lib/ucmpdi2.S

   1 /*
   2  *  linux/arch/arm/lib/ucmpdi2.S
   3  *
   4  *  Author:     Nicolas Pitre
   5  *  Created:    Oct 19, 2005
   6  *  Copyright:  Monta Vista Software, Inc.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/linkage.h>
  14 #include <asm/assembler.h>
  15 #include <asm/export.h>
  16
  17 #ifdef __ARMEB__
  18 #define xh r0
  19 #define xl r1
  20 #define yh r2
  21 #define yl r3
  22 #else
  23 #define xl r0
  24 #define xh r1
  25 #define yl r2
  26 #define yh r3
  27 #endif
  28
  29 ENTRY(__ucmpdi2)
  30
  31         cmp     xh, yh
  32         cmpeq   xl, yl
  33         movlo   r0, #0
  34         moveq   r0, #1
  35         movhi   r0, #2
  36         ret     lr
  37
  38 ENDPROC(__ucmpdi2)
  39 EXPORT_SYMBOL(__ucmpdi2)
  40
  41 #ifdef CONFIG_AEABI
  42
  43 ENTRY(__aeabi_ulcmp)
  44
  45         cmp     xh, yh
  46         cmpeq   xl, yl
  47         movlo   r0, #-1
  48         moveq   r0, #0
  49         movhi   r0, #1
  50         ret     lr
  51
  52 ENDPROC(__aeabi_ulcmp)
  53 EXPORT_SYMBOL(__aeabi_ulcmp)
  54
  55 #endif
  56