• State Not Answered
  • Locked Locked
  • Replies 14 replies
  • Subscribers 21 subscribers
  • Views 4804 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Selectively disable optimization on macro?

Andrew E. Kalman

I have a macro:

#define EnterCritical()
  do {     SP++;     *(unsigned char idata *)(SP-1) = IE;     EA = 0;   } while (0);

that I call multiple times (along with its complement, ExitCritical()) in a particular function. With C51's optimization level set at 9, the optimizer is turning these in-line macros into a function and calling them -- this obviously won't work, due to the operations on SP.

Is there a way for me to maintain the OPTIMIZE(9,SIZE) settings for the module but ensure that the macro is left in its original in-line state whenever I invoke it?

Thanks,

Parents
  • 0 in reply to Jon Young

    Opps, I forgot the &ltpre&gt and &lt/pre&gt tags. ( Sure would be nice if the following message was before the message box: "Use &ltpre&gt and &lt/pre&gt tags surrounding any code posted." )<br>
    <br>
    May I suggest this simpler, faster C code.<br>
    <br>

    void main()
{
  //some code ..
  {
    bit ie = IE; IE = 0;
    //critical code ..
    IE = ie;
  }
  //some more code ..
}
    <br>
    <br>

Reply
  • 0 in reply to Jon Young

    Opps, I forgot the &ltpre&gt and &lt/pre&gt tags. ( Sure would be nice if the following message was before the message box: "Use &ltpre&gt and &lt/pre&gt tags surrounding any code posted." )<br>
    <br>
    May I suggest this simpler, faster C code.<br>
    <br>

    void main()
{
  //some code ..
  {
    bit ie = IE; IE = 0;
    //critical code ..
    IE = ie;
  }
  //some more code ..
}
    <br>
    <br>

Children
No data