How much time is saved by using the DBNE instruction instead of a decrement instruction (DECA, DECB, DEX, or DEY) followed by a BNE instruction? Assume the branch is taken (it almost always will be taken) 2. Hint: reading each byte into CPU will take one cycle and executing it will take one cycle. For example, LDAA $1000 (machine code: B6 10 10) will take 3 cycles to read in and one cycle to execute. 3. The instruction sequence CLRA; L: INCA; BNE L is used to delay the execution of a program. How much time does it take to execute this code sequence (in terms of clock cycles)? Write a code sequence using an iteration control structure which will clear memory locations $2000 through $200F. 4. 5. Write a code sequence using an iteration control structure which will store the value $23 into memory locations $2000 through $2010. 6. Write a code sequence using an iteration control structure which given a starting address in register X, an ending address in Y, and a value in B, will store the value in B into the location specified in X through the location specified in Y. 7. Write a code sequence using an iteration control structure which given a starting address in register X, a count in accumulator A, and a value in B, will store the value in B into the location specified in X for a total of A bytes. Note that A is unsigned and might be zero 8. Write a code sequence using an iteration control structure which will add together all the (unsigned) bytes in memory locations $2000 through $2010, storing the sum in accumulator D How much time is saved by using the DBNE instruction instead of a decrement instruction (DECA, DECB, DEX, or DEY) followed by a BNE instruction? Assume the branch is taken (it almost always will be taken) 2. Hint: reading each byte into CPU will take one cycle and executing it will take one cycle. For example, LDAA $1000 (machine code: B6 10 10) will take 3 cycles to read in and one cycle to execute. 3. The instruction sequence CLRA; L: INCA; BNE L is used to delay the execution of a program. How much time does it take to execute this code sequence (in terms of clock cycles)? Write a code sequence using an iteration control structure which will clear memory locations $2000 through $200F. 4. 5. Write a code sequence using an iteration control structure which will store the value $23 into memory locations $2000 through $2010. 6. Write a code sequence using an iteration control structure which given a starting address in register X, an ending address in Y, and a value in B, will store the value in B into the location specified in X through the location specified in Y. 7. Write a code sequence using an iteration control structure which given a starting address in register X, a count in accumulator A, and a value in B, will store the value in B into the location specified in X for a total of A bytes. Note that A is unsigned and might be zero 8. Write a code sequence using an iteration control structure which will add together all the (unsigned) bytes in memory locations $2000 through $2010, storing the sum in accumulator D