Try out the example in the simulator:

The computer copies the value in memory cell #5 (9) to cell #4. The destination is calculated by adding the value in cell #1 (3) and the immediate (1).

Quiz (1 point)

• 0 + a = a
• 3 + 1 = 4

• if the following are true:

  • instruction #i is store src=src addr=addr imm=imm
  • the PC at time t = i

  then value of cell ((value of cell addr at time t) + imm) at time (t + 1) = value of cell src at time t

• if 0 + 1 = 1, then value of cell ((value of cell 1 at time 0) + 1) at time (0 + 1) = value of cell ((value of cell 1 at time 0) + 1) at time 1

• if value of cell 1 at time 0 = 3, then (value of cell 1 at time 0) + 1 = 3 + 1

• if (value of cell 1 at time 0) + 1 = 3 + 1, then value of cell ((value of cell 1 at time 0) + 1) at time 1 = value of cell (3 + 1) at time 1

• if 3 + 1 = 4, then value of cell (3 + 1) at time 1 = value of cell 4 at time 1

• if the following are true:

  • a = b
  • b = d
  • a = c

  then d = c

• if the following are true:

  • a = b
  • b = c

  then a = c

• if the following are true:

  • a = b
  • a = c

  then b = c

Please write your proof in the table below. Each row should contain one claim. The last claim is the statement that you are trying to prove.

Step	Claim	Reason (optional)	Error Message (if any)
1
2
3
4
5
6
7
8
9
10

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