Function r

Function that performs a left rotation of the specified number of bits.

Syntax	i32 r_rol (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 the rotation the heaviest outgoing bit on the left is recirculated into the lightest incoming bit on the right

Example of use:

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

; Assuming a value of r(101) = 0x12481248, after execution of the function the contents of r(100) will be : 0x92409240

Note: Since the heaviest bit does not exit to the left the behavior is analogous to r_shl().

Example usage:

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

; Assuming a value of r(101) = 0x12481248, after execution of the instruction the contents of r(100) will be : 0x92409241

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

Example usage:

r(1) = r_rol(r(1), 1)

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