RE: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os

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RE: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os

From:	John Regehr
Subject:	RE: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os
Date:	Fri, 16 May 2008 12:55:24 -0600 (MDT)

The PORTA bits are used for hardware control.  I want to use the

atan2(), etc. calls as pulse stretching.

Then I recommend using the calls in <util/delay.h> to get exact delays
instead of monkeying around with floating point routine calls.  They'll
be a lot more exact as well as being a boatlad smaller!


Perhaps the atan2() call are accomplishing useful work...

John

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RE: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os, (continued)
- Re: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os, hutchinsonandy, 2008/05/15
  - Re: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os, Thomas D. Dean, 2008/05/15
    - Re: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os, Blake Leverett, 2008/05/15
- Re: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os, Alex Wenger, 2008/05/15

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