cc0 question

[brahmaiah vallabhaneni]

Hi ,
 I am trying to understand RTL for my thesis.
 I have one question about conditional code register
 (cc0) in gcc.

  1) DO I need to specify somewhere that that flags
  register is cc0.

   or is it that, since cc0 is pseudo 
  when doing operations which can set flags,
    I need to call CC_STATUS_INIT.
  and when doing operations which preserve flags
  I can say cc_status = cc-Prev_status.

   I am wrong please correct my understanding .


thanks and regards


V.Brahmaiah


  






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