MdePkg/Library/BaseMemoryLibOptDxe/Arm/CompareGuid.S

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  27 //
  28
  29     .text
  30     .thumb
  31     .syntax unified
  32     .align  5
  33     .type   ASM_PFX(InternalMemCompareGuid), %function
  34 ASM_GLOBAL ASM_PFX(InternalMemCompareGuid)
  35 ASM_PFX(InternalMemCompareGuid):
  36     push    {r4, lr}
  37     ldr     r2, [r0]
  38     ldr     r3, [r0, #4]
  39     ldr     r4, [r0, #8]
  40     ldr     r0, [r0, #12]
  41     cbz     r1, 1f
  42     ldr     ip, [r1]
  43     ldr     lr, [r1, #4]
  44     cmp     r2, ip
  45     it      eq
  46     cmpeq.n r3, lr
  47     beq     0f
  48     movs    r0, #0
  49     pop     {r4, pc}
  50
  51 0:  ldr     r2, [r1, #8]
  52     ldr     r3, [r1, #12]
  53     cmp     r4, r2
  54     it      eq
  55     cmpeq.n r0, r3
  56     bne     2f
  57     movs    r0, #1
  58     pop     {r4, pc}
  59
  60 1:  orrs    r2, r2, r3
  61     orrs    r4, r4, r0
  62     movs    r0, #1
  63     orrs    r2, r2, r4
  64 2:  it      ne
  65     movne.n r0, #0
  66     pop     {r4, pc}