ArmPkg/Library/ArmSoftFloatLib/Arm/__aeabi_cfcmp.asm

   1 //------------------------------------------------------------------------------
   2 //
   3 // Copyright (c) 2015, Linaro Limited. All rights reserved.
   4 //
   5 // SPDX-License-Identifier: BSD-2-Clause-Patent
   6 //
   7 //------------------------------------------------------------------------------
   8
   9     EXPORT      __aeabi_cfrcmple
  10     EXPORT      __aeabi_cfcmpeq
  11     EXPORT      __aeabi_cfcmple
  12     IMPORT      _softfloat_float32_eq
  13     IMPORT      _softfloat_float32_lt
  14
  15     AREA        __aeabi_cfcmp, CODE, READONLY
  16     PRESERVE8
  17
  18 __aeabi_cfrcmple
  19     MOV         IP, R0
  20     MOV         R0, R1
  21     MOV         R1, IP
  22
  23 __aeabi_cfcmpeq
  24 __aeabi_cfcmple
  25     PUSH        {R0 - R3, IP, LR}
  26     BL          _softfloat_float32_eq
  27     SUB         IP, R0, #1
  28     CMP         IP, #0                  // sets C and Z if R0 == 1
  29     POPEQ       {R0 - R3, IP, PC}
  30
  31     LDM         SP, {R0 - R1}
  32     BL          _softfloat_float32_lt
  33     SUB         IP, R0, #1
  34     CMP         IP, #1                  // sets C if R0 == 0
  35     POP         {R0 - R3, IP, PC}
  36
  37     END