Given the execution of the below instructions (and initial state in memory): 0 MOV r1, #12; 1 ADD r2, r1,#10; 2 BL Loop; 3 LDR r5, 1234; 10 Loop: MOV r3, #1; |11 MUL r4, r2,r3 ; |12 MOV pc,lr ; If a set associative cache with 2 sets (set 1 and set 2) with 4 word size lines each(line 0-3) is used. What is the final instruction stored in the cache line 3, set 1? O MUL r4, r2,r3 O LDR r5, 1234 BL Loop O Loop MOV r3, #1
Given the execution of the below instructions (and initial state in memory): 0 MOV r1, #12; 1 ADD r2, r1,#10; 2 BL Loop; 3 LDR r5, 1234; 10 Loop: MOV r3, #1; |11 MUL r4, r2,r3 ; |12 MOV pc,lr ; If a set associative cache with 2 sets (set 1 and set 2) with 4 word size lines each(line 0-3) is used. What is the final instruction stored in the cache line 3, set 1? O MUL r4, r2,r3 O LDR r5, 1234 BL Loop O Loop MOV r3, #1
Computer Networking: A Top-Down Approach (7th Edition)
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Chapter1: Computer Networks And The Internet
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Note: This is referring to ARM architecture.
Transcribed Image Text:### Instruction Execution and Memory State
Here is the sequence of assembly instructions and their memory addresses:
| Address | Instruction |
|---------|--------------------|
| 0 | MOV r1, #12 |
| 1 | ADD r2, r1, #10 |
| 2 | BL Loop |
| 3 | LDR r5, 1234 |
| 10 | Loop: MOV r3, #1 |
| 11 | MUL r4, r2, r3 |
| 12 | MOV pc, lr |
### Cache Configuration
- **Type:** Set associative cache
- **Sets:** 2 (Set 1 and Set 2)
- **Line size:** 4 words (Lines 0-3)
### Question
Given the configuration of the cache, determine the final instruction stored in cache line 3, set 1.
### Options
- MUL r4, r2, r3
- LDR r5, 1234
- BL Loop
- Loop MOV r3, #1
The correct answer is the instruction at line 3, which would be stored in line 3 of set 1 within the cache.
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