ROR - Rotate Right through Carry ;flags(N,Z,C)
ROR opr ;C > (opr) > C ;(DIR) 8 bit direct
ROR ,X ;C > (X) > C ;(IX) indexed no offset
ROR opr,X ;C > (opr+X) > C ;(IX1) indexed w/8 bit offset
Shifts all bits of M(opr) one place to the right. Bit 7 is loaded from the C
bit.