[avr-libc-dev] [bug #22119] Misleading statement in FAQ

[Gre7g Luterman]

URL:
  <http://savannah.nongnu.org/bugs/?22119>

                 Summary: Misleading statement in FAQ
                 Project: AVR C Runtime Library
            Submitted by: hafeliel
            Submitted on: Friday 01/25/2008 at 17:08
                Category: Documentation
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Documentation
                  Status: None
        Percent Complete: 0%
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Please see the end of section:

http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_reg_usage

The docs say:

"8-bit return values are zero/sign-extended to 16 bits by the caller..."

IIRC, it is the responsibility of the called function (the callee) to clear
r25 when returning a single byte, and not the caller.




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