Just a correction : div() take 2 parameters :
div_t t;
t=div(c, 10);
a=t.quot;
b=t.rem;
Eric.
----- Original Message -----
From: Albert Andras
To: avr-gcc-list@nongnu.org
Sent: Tuesday, December 11, 2007 4:16 PM
Subject: Re: [avr-gcc-list] dev and mod may not be optimized
----- Original Message -----
From: "Nathan Moore" <[EMAIL PROTECTED]>
> unsigned char a, b, c;
> c = some_input_function();
> LABEL:
> a = c/10;
> b = c%10;
> ...
>
> *****************************************
> LABEL:
> mov r24,r18
> ldi r22,lo8(10)
> call __udivmodqi4
> mov r19,r24
> .LM436:
> mov r24,r18
> call __udivmodqi4
>
> If I'm understanding __udivmodqi4 it produces the results of both of
> these with one call.
Acording to:
http://www.nongnu.org/avr-libc/user-manual/structdiv__t.html
you could do:
div_t t;
t=div(c/10);
a=t.quot;
b=t.rem;
????
Andras
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