Function r

Function that performs a rotation to the right of the specified number of bits.

Syntax	i32 r_ror (i32 value, i32 nBit)
value	Unit on which to perform the rotation
nBit	Number of bits
result	Returns the result of the rotation
Validity	Rule, Task
Note	In rotation the lightest outgoing bit on the right is recirculated into the heaviest incoming bit on the left

Example usage:

r(100) = r_ror(r(101), 3)

; Assuming a value of r(101) = 0x12481248, after execution of the function the contents of r(100) will be : 0x02490249

NOTE: Since the lightest bit does not exit to the right the behavior is similar to r_shr().

Example usage:

r(100) = r_ror(r(101), 4)

; Assuming a value of r(101) = 0x12481248, after execution of the instruction the contents of r(100) will be : 0x81248124

Note: The lightest bit exits to the right and is recirculated to the left (different behavior from r_shr()).

Example usage:

r(1) = r_ror(r(1), 1)

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