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
  16 #ifdef __ARMEB__
  17 #define xh r0
  18 #define xl r1
  19 #define yh r2
  20 #define yl r3
  21 #else
  22 #define xl r0
  23 #define xh r1
  24 #define yl r2
  25 #define yh r3
  26 #endif
  27
  28 ENTRY(__ucmpdi2)
  29
  30         cmp     xh, yh
  31         cmpeq   xl, yl
  32         movlo   r0, #0
  33         moveq   r0, #1
  34         movhi   r0, #2
  35         ret     lr
  36
  37 ENDPROC(__ucmpdi2)
  38
  39 #ifdef CONFIG_AEABI
  40
  41 ENTRY(__aeabi_ulcmp)
  42
  43         cmp     xh, yh
  44         cmpeq   xl, yl
  45         movlo   r0, #-1
  46         moveq   r0, #0
  47         movhi   r0, #1
  48         ret     lr
  49
  50 ENDPROC(__aeabi_ulcmp)
  51
  52 #endif
  53