Proof: Pc 12
Let's prove the following theorem:
if the following are true:
- instruction #6 is
addi dst=2 src=3 imm=0
- the PC at time 12 = 6
then the PC at time 13 = 7
Instructions
Memory Cells |
---|
Program Counter | Time |
---|---|
0 | 0 |
LW Computer Simulator
Proof:
Given
1 | instruction #6 is addi dst=2 src=3 imm=0 |
---|---|
2 | the PC at time 12 = 6 |
# | Claim | Reason |
---|---|---|
1 | the PC at time (12 + 1) = 6 + 1 | if instruction #6 is addi dst=2 src=3 imm=0 and the PC at time 12 = 6, then the PC at time (12 + 1) = 6 + 1 |
2 | 12 + 1 = 13 | 12 + 1 = 13 |
3 | 6 + 1 = 7 | 6 + 1 = 7 |
4 | the PC at time (12 + 1) = the PC at time 13 | if 12 + 1 = 13, then the PC at time (12 + 1) = the PC at time 13 |
5 | the PC at time 13 = 7 | if the PC at time (12 + 1) = 6 + 1 and the PC at time (12 + 1) = the PC at time 13 and 6 + 1 = 7, then the PC at time 13 = 7 |
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