register variables

[Karl Braun]

Ken Arnold presented the following example while talking about the necessity
of proper ordering when declaring register vars.  

> 
> 	register int	i, j;
> 
> 	for (i = 0; ...)
> 		for (j = 0; ...)
> 

It made me wonder if the following version would be any more efficient:

	register int	i ;

	for( i = 0 ; ... )
	{
		register int	j ;

		for( j = 0 ;... )
	}

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			kral
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