ld

The ld instruction pieces two post-its together, then read them as an address (recall how an address or page number requires two bytes). The instruction then reads from the location specified by this address and copies the value to a post-it.

It is more difficult to illustrate this instruction. Let us assume r26 has a value of 0x4d, while r27 has a vlaue of 0x01. This is necessary because r26 and r27 combine to become X.

The instruction ld r14,X does the following:

• combine r26 and r27 for a 16-bit value of 0x014d.
• read from location 0x014d
• copy the value to register r14