Question

1. Write a code segment that adds the immediate values $29 and $42, with the final result located in register A. Determine the value of the result. 2. Write a code segment that uses one instruction to add 1 to register B. 3. Write a code segment that uses one instruction to subtract 1 from register X. 4. Write a code segment that loads the value $1234 into register D. 5. Write a code segment that loads S54 into B, then stores the value in register B to address SA 100. Show the bracket notation used to indicate the contents and address, assuming the code has executed. 6. Write a code segment that loads $5678 into X, then stores the value in register X to address $D020. Show the bracket notation used to indicate the contents and addresses, assuming the code has executed.

Answer 1

Answering first four questions:

1,2,3,4

Solution 1 $42 and Code sesement to result is located add in $29 register and A ADD A $29, $42 value of Result = 71 Code Segement to add 1 to Register B AND B, $1,6 Code Segiment to substract 1 from Register X SUB X, X,$1 Code segement to lead $1234 to Register D 100, $1234 - 4. - Here Arestuuton's used: ADD SUB LO RI, R2 R3 R1, R2, R3 RI, $ R3 < R2 + R3 R3 € R2 - R3 Rl EX