[avr-gcc-list] compiler not generating IO

[developer2112 (sent by Nabble.com)]

I am using WinAvr C compiler and I'm trying to setup and use a UART but the compiler isn't generating IO. What could be the problem?


If I write source like this:

UDR = 'A';

I get in my listing:

        UDR = 'A';
 272:	81 e4       	ldi	r24, 0x41	; 65
 274:	80 93 2c 00 	sts	0x002C, r24

clearly I am not getting an "out" instruction, what gives?

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