LSR - Logical Shift Right ;flags(N,Z,C)
LSR opr ;0 > (opr) > C ;(DIR) 8 bit direct
LSR ,X ;0 > (X) > C ;(IX) indexed no offset
LSR opr,X ;0 > (opr+X) > C ;(IX1) indexed w/8 bit offset
Shifts all bits of M(opr) one place to the right. Bit 7 is loaded with zero.
Bit 0 is shifted into the C bit.