12. Rotate Left Doubleword Immediate then Clear Left MD-form

rldicl RA,RS,SH,MB (Rc=0)
rldicl. RA,RS,SH,MB (Rc=1)
30 RS RA sh mb 0  sh Rc
0  6  11 16 21 27 30 31

The contents of register RS are rotated64 left SH bits. A
mask is generated having 1-bits from bit MB through bit
63 and 0-bits elsewhere. The rotated data are ANDed
with the generated mask and the result is placed into
register RA.
Special Registers Altered:
CR0 (if Rc=1)
Extended Mnemonics:
Examples of extended mnemonics for Rotate Left Doubleword
Immediate then Clear Left

Extended: Equivalent to:
srdi Rx,Ry,n rldicl Rx,Ry,64-n,n

NOTE:
 left shif n bit <=> right shift (64-n) bit in rotate64 mode
 left shif n bit <=> right shift (32-n) bit in rotate32 mode