4-4 MARIE

Question 1

The number of clock cycles from then an interrupt is generated to when the process routine starts is the

Answer 1

Interrupt Latency

Question 2

Maskable interrupts cannot be interrupted by other interrupts.

Answer 2

False

Question 3

In MARIE, the indirect addressing instruction ADDI would contain a memory address in the instruction. What does the memory address point to in main memory?

Answer 3

A pointer to the operand to be used in instruction execution

Question 4

Interrupt processing takes priority over the execution of other programs even if multiple interrupts are queued.

Answer 4

True

Question 5

Which of the following is the accurate “binary contents” representation of the instruction “ADD 104” in MARIE? (Hint: ADD is instruction 3)

Answer 5

0011000100000100

Question 6

Which of the following is the accurate “hex contents” representation of the instruction “SKIPCOND” with an equals zero condition in MARIE? (Hint: SKIPCOND is instruction 8, and equals zero is high order bits 01)

Answer 6

8400