Use the least number of HC-12 assembly instructions to perform each of the follo

ID: 1812746 • Letter: U

Question

Use the least number of HC-12 assembly instructions to perform each of the

following operation:

(a) add two BCD numbers, one at memory location $204A and the other in B

register, and then save the BCD result in B register

(b) establish an address which is 12 byte locations lower than (smaller address

direction) the address in X register, and then store this address in Y register

(c) move the content of CCR into a memory location with its address currently in

register X

(d) establish a constant value -27 in memory location $47AC

(e) subtract one 24-bit integer at memory location $3128 from another 24-bit integer at memory location $3228

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