MdePkg/Library/BaseMemoryLibOptDxe/Arm/CompareGuid.asm

   1 ;
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  28
  29     EXPORT  InternalMemCompareGuid
  30     THUMB
  31     AREA    CompareGuid, CODE, READONLY, CODEALIGN, ALIGN=5
  32
  33 InternalMemCompareGuid
  34     push    {r4, lr}
  35     ldr     r2, [r0]
  36     ldr     r3, [r0, #4]
  37     ldr     r4, [r0, #8]
  38     ldr     r0, [r0, #12]
  39     cbz     r1, L1
  40     ldr     ip, [r1]
  41     ldr     lr, [r1, #4]
  42     cmp     r2, ip
  43     it      eq
  44     cmpeq   r3, lr
  45     beq     L0
  46     movs    r0, #0
  47     pop     {r4, pc}
  48
  49 L0
  50     ldr     r2, [r1, #8]
  51     ldr     r3, [r1, #12]
  52     cmp     r4, r2
  53     it      eq
  54     cmpeq   r0, r3
  55     bne     L2
  56     movs    r0, #1
  57     pop     {r4, pc}
  58
  59 L1
  60     orrs    r2, r2, r3
  61     orrs    r4, r4, r0
  62     movs    r0, #1
  63     orrs    r2, r2, r4
  64
  65 L2
  66     it      ne
  67     movne   r0, #0
  68     pop     {r4, pc}
  69
  70     END