Refer to the below code snippet and determine the value of R if P is 5 and Q is 3: .ORIG x3000 LDI R3, P LDI R4, Q ADD R5, R3, R4 STI R5, R HALT P. FILL x3200
Refer to the below code snippet and determine the value of R if P is 5 and Q is 3: .ORIG x3000 LDI R3, P LDI R4, Q ADD R5, R3, R4 STI R5, R HALT P. FILL x3200
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Assembly Programming
![### Example Assembly Code and Value Determination
Refer to the below code snippet and determine the value of R if P is 5 and Q is 3:
```asm
.ORIG x3000
LDI R3, P
LDI R4, Q
ADD R5, R3, R4
STI R5, R
HALT
P .FILL x3200
Q .FILL x3201
R .FILL x3202
.END
```
#### Understanding the Code:
1. **.ORIG x3000**:
- This directive sets the starting address of the program at location `x3000`.
2. **LDI R3, P**:
- The instruction `LDI` stands for "Load Indirect". This loads the value stored at the memory location specified by the address in `P` (which is `x3200`) into register `R3`. Given that `P = 5`, the value stored at memory location `x3200` is `5`.
3. **LDI R4, Q**:
- Similarly, this instruction loads the value stored at the memory location specified by the address in `Q` (which is `x3201`) into register `R4`. Given that `Q = 3`, the value stored at memory location `x3201` is `3`.
4. **ADD R5, R3, R4**:
- This instruction adds the contents of registers `R3` and `R4` and stores the result in register `R5`. Therefore, `R5 = 5 + 3 = 8`.
5. **STI R5, R**:
- The instruction `STI` stands for "Store Indirect". This stores the value in register `R5` at the memory location specified by the address in `R` (which is `x3202`). Therefore, `x3202` will contain `8`.
6. **HALT**:
- This instruction halts the execution of the program.
7. **P .FILL x3200**:
- This stores the value `x3200` as the address for `P`.
8. **Q .FILL x3201**:
- This stores the value `x3201` as the address for `Q`.
9. **R .FILL x3202](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1df78ed7-7bf9-40d0-9ea6-9fdf014e5eeb%2F1fdab044-b056-4e15-8701-abae9f16524c%2Fsbytotu_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Example Assembly Code and Value Determination
Refer to the below code snippet and determine the value of R if P is 5 and Q is 3:
```asm
.ORIG x3000
LDI R3, P
LDI R4, Q
ADD R5, R3, R4
STI R5, R
HALT
P .FILL x3200
Q .FILL x3201
R .FILL x3202
.END
```
#### Understanding the Code:
1. **.ORIG x3000**:
- This directive sets the starting address of the program at location `x3000`.
2. **LDI R3, P**:
- The instruction `LDI` stands for "Load Indirect". This loads the value stored at the memory location specified by the address in `P` (which is `x3200`) into register `R3`. Given that `P = 5`, the value stored at memory location `x3200` is `5`.
3. **LDI R4, Q**:
- Similarly, this instruction loads the value stored at the memory location specified by the address in `Q` (which is `x3201`) into register `R4`. Given that `Q = 3`, the value stored at memory location `x3201` is `3`.
4. **ADD R5, R3, R4**:
- This instruction adds the contents of registers `R3` and `R4` and stores the result in register `R5`. Therefore, `R5 = 5 + 3 = 8`.
5. **STI R5, R**:
- The instruction `STI` stands for "Store Indirect". This stores the value in register `R5` at the memory location specified by the address in `R` (which is `x3202`). Therefore, `x3202` will contain `8`.
6. **HALT**:
- This instruction halts the execution of the program.
7. **P .FILL x3200**:
- This stores the value `x3200` as the address for `P`.
8. **Q .FILL x3201**:
- This stores the value `x3201` as the address for `Q`.
9. **R .FILL x3202
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