Need help with assembly problem

Closed Posted 2 years ago Paid on delivery
Closed Paid on delivery

Given the following assembly code snippet, assume <SP> = $9000.

Line #: memory address Assembly code

00: 00001000 LEA $6000, A1

01: 00001004 MOVE.W #%1000000000000001, (A1)+

02: 00001008 MOVE.W #%1100000000000011, (A1)+

03: 0000100C MOVE.W #%1110000000000111, (A1)+

04: 00001010 MOVE.W #%1111000000001111, (A1)+

05: 00001014 MOVE.W #%1111100000011111, (A1)

06: 00001018 LEA $6000, A1

07: 0000101C MOVE.B #0, D0

08: 00001020 LOOP1 MOVE.W (A1)+, D1

09: 00001022 AND.W #$00FF, D1

10: 00001026 LSR #1, D1

11: 00001028 MOVE.W D1, -(SP)

12: 0000102A ADDQ.B #1,D0

13: 0000102C CMP.B #5, D0

14: 00001030 BLT LOOP1

15: 00001032 LEA $6000, A1

16: 00001036 MOVE.B #0, D0

17: 0000103A LOOP2 MOVE.W (SP)+, (A1)+

18: 0000103C ADDQ.B #1,D0

19: 0000103E CMP.B #5, D0

20: 00001042 BLT LOOP2

Answer the following questions, provide all values in hexadecimal.

What is the value of the PC while executing instructions #12 and #18?

What is the calculated displacement at instruction #14? Explain your answer.

What is the machine code (in hexadecimal) of instructions #09 and #16?

What is the value of the SP right after executing instruction #15?

What is the value of the SP at the end of the program?

What is the long value stored at address $6002 and the value of D0 after the execution of the program?

What’s the value at the X and C flags in the CCR register after executing #10 in the first iteration of the loop?

Assembly

Project ID: #30900738

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davidgill198

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