Chapter 12 List of Machine Language Instructions
236 List of Machine Language Instructions
EXTEND Sign
MOVM
CLR
Mnemonic Description of operation
EXT Dn Extend Dn to 64 bits and store the highest 32 bits in MDR.
EXTB Dn Sign-extend the lowest 8 bits of Dn to fill Dn.
EXTBU Dn Zero-extend the lowest 8 bits of Dn to fill Dn.
EXTH Dn Sign-extend the lowest 16 bits of Dn to fill Dn.
EXTHU Dn Zero-extend the lowest 16 bits of Dn to fill Dn.
Mnemonic Description of operation
MOVM (SP), regs Load the specified registers from a block in memory.
MOVM regs, (SP) Save the specified registers to a block in memory.
Mnemonic Description of operation
CLR Dn Clear Dn to zero.