: For each of the following words identify the bytethat is stored at lower memory address and the byte that is storedat higher m
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Answer:
To avoid conflicting uses of A register, few well-written programs follow the best practice, i.e, avoiding reference to M and vice versa. The programmer can use the A register to select either a data memory location for a subsequent C-instruction involving M, or an instruction memory location for a subsequent C-instruction involving a jump. Thus, to prevent the conflicting use of the A register, in well-written programs a C-instruction that may cause a jump (i.e., with some non-zero j bits) should not contain a reference to M, and vice versa.
Image is attached for better demonstration and understanding.
