> In the shortest possible time, reverse the order of the bits
> in a random
> data register.  Assume this is the time critical element of
> the application,
> and nothing about the application is as important as getting
> the order of
> these bits reversed as quickly as possible.

1. Random? You want the reverse of random? I will give you 0b_0000_0000,
now you prove me wrong!

2. Write to a port, read back from another port with appropriate wiring
between the ports

3. hardware tricks are not allowed? I did not hear you say so! But you
could always use a RETLW table.

4. Bugger, it must be a small amout of code too? Better get your specs
right next time, and ask Scott to do it in 3.5 instructions.

Wouter van Ooijen

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