AVR-Chat

Speed contest: 	 Fast code desired, space is no object.

Task: 			Make UP look like Down by rotating all the bits in a byte.

Input in TEMP, output in TEMP2 or for bonus points, in TEMP, such that

Input: 	7,6,5,4,3,2,1,0      10101110 or AE

Routine happens, then

Output: 0,1,2,3,4,5,6,7    01110101 or 75

The obvious solution is to clear the output and set the bits with 
SBRC like this:

;
;*************************************************************************************
;
;Bit swap end for end.
;
Untwist:
	push	TEMP2			;
	clr	TEMP2			;

	sbrc	TEMP,0		;
	sbr	TEMP2,1<<7		;

	sbrc	TEMP,1		;
	sbr	TEMP2,1<<6		;

	sbrc	TEMP,2		;
	sbr	TEMP2,1<<5		;

	sbrc	TEMP,3		;
	sbr	TEMP2,1<<4		;

	sbrc	TEMP,4		;
	sbr	TEMP2,1<<3		;

	sbrc	TEMP,5		;
	sbr	TEMP2,1<<2		;

	sbrc	TEMP,6		;
	sbr	TEMP2,1<<1		;

	sbrc	TEMP,7		;
	sbr	TEMP2,1<<0		;

	mov	TEMP,TEMP2		;

	pop	TEMP2			
	ret				;