On Thu, 11 Oct 2001, Thomas Jentzsch wrote:
> A compare works like a subtraction (like SBC, but without the carry
> influence):
> - N-flag: set, when the subtracted signed value is bigger, so the result
> is negative (signed compare)
> - C-flag: set, when the subtracted unsigned value is bigger (unsigned
> compare)
> - V-flag: set, when there is an signed overflow in subtraction
> (i.E. -128 - 1 and +127 - -1) (signed compare)
Wow....that's a useful instruction!!!
-Chris
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