1. Consider the following array with the contents given:
5 5 5 5 5 5 5 5 5 5
Do the the following:
a) Write an assembly code using index addressing to add all the elements in the array and store the result in a memory location 'RESULT'.
Here's an example of assembly code using index addressing to add all the elements in the array and store the result in a memory location called 'RESULT':
```
DATA DW 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 ; Array with the contents given
RESULT DW 0 ; Memory location to store the result
MOV AX, 0 ; Clear AX register
MOV SI, OFFSET DATA ; Set SI to point to the array
MOV CX, 10 ; Set CX to the number of elements in the array
LOOP_START:
ADD AX, [SI] ; Add the value at current SI to AX
ADD SI, 2 ; Increment SI by 2 to move to the next element
LOOP LOOP_START ; Repeat until CX becomes zero
MOV [RESULT], AX ; Store the final result in 'RESULT'
MOV AH, 4CH ; Set AH to 4Ch for program termination
INT 21H
END
```
In this code, we use the `MOV` (move), `ADD` (add), and `LOOP` (loop) instructions to iterate through the array elements and sum them up in the `AX` register. We start by initializing `AX` to zero and `SI` to point to the beginning of the array. Then, we use the `ADD` instruction to add the value at the current `SI` to `AX` and move to the next element by incrementing `SI` by 2 (since each element is 2 bytes). We repeat this process using the `LOOP` instruction until `CX` becomes zero (which is decremented automatically by the `LOOP` instruction).
Finally, we store the final result in the memory location called `RESULT` using the `MOV` instruction. This result can then be accessed and used for further processing or display.
Note that this code assumes the use of an x86-based processor and assembler. The specific assembly language syntax and instructions may vary depending on the processor architecture and assembler being used.
To write an assembly code using index addressing to add all the elements in the array and store the result in a memory location 'RESULT', you can follow these steps:
1. Set up the necessary registers:
- Set the base address of the array in a register (let's say register A)
- Set the index of the first element in a separate register (let's say register B)
- Set a register (let's say register C) to hold the sum, initially set to 0
2. Create a loop to iterate through each element of the array:
- Load the value of the current element using the index addressing mode, where [A + B] represents the memory location of the current element
- Add the current element to the sum register (register C)
- Increment the index register (register B) to point to the next element in the array
3. Repeat step 2 until all elements have been processed.
4. Store the final sum in the memory location labeled 'RESULT' using a store instruction.
Here's an example assembly code snippet that implements the above steps:
```
LOAD A, <base_address> ; base_address is the starting address of the array
MOV B, #0 ; Initialize index register to 0
MOV C, #0 ; Initialize sum register to 0
loop:
ADD C, [A + B] ; Add current element to sum
INC B ; Increment index register
CMP B, #10 ; Compare index with the number of elements in the array (in this case, 10)
JC loop ; Jump to the loop label if B is less than 10
STORE C, RESULT ; Store the sum in the memory location labeled 'RESULT'
```
Note: Replace `<base_address>` with the actual starting address of the array in memory, and ensure that the 'RESULT' memory location is correctly defined and accessible.