ArmPkg/Library/CompilerIntrinsicsLib/Arm/mullu.S

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  14 .text
  15
  16 GCC_ASM_EXPORT(__ARM_ll_mullu)
  17 GCC_ASM_EXPORT(__aeabi_lmul)
  18 #
  19 #INT64
  20 #EFIAPI
  21 #__aeabi_lmul (
  22 #  IN INT64   Multiplicand
  23 #  IN INT32   Multiplier
  24 #  );
  25 #
  26 ASM_PFX(__ARM_ll_mullu):
  27   mov     r3, #0
  28 # Make upper part of INT64 Multiplier 0 and use __aeabi_lmul
  29
  30 #
  31 #INT64
  32 #EFIAPI
  33 #__aeabi_lmul (
  34 #  IN INT64   Multiplicand
  35 #  IN INT64   Multiplier
  36 #  );
  37 #
  38 ASM_PFX(__aeabi_lmul):
  39   stmdb   sp!, {lr}
  40   mov     lr, r0
  41   umull   r0, ip, r2, lr
  42   mla     r1, r2, r1, ip
  43   mla     r1, r3, lr, r1
  44   ldmia   sp!, {pc}