Consider the image below, showing the main memory display from the ARMlite simulator

Consider the image below, showing the main memory display from the ARMlite simulator. Provide no more than three lines of ARMlite compatible assembly code that could have generated this outcome? Memory 000 0x0 0x4 0x8 0xc 0x0000 0x00000000 0x00000000 0x00000000 0x00000000 0x0001 0x00000000 0x00000000 0x00000000 0x00000000 0x0002 0x00000000 0x00000000 0x00000000 0x00000000 0x0003 0x00000000 0x00000000 0x000000ff 0x00000000 0x0004 0x00000000 0x00000000 0x00000000 0x00000000 0x0005 0x00000000 0x00000000 0x00000000 0x00000000 0x0006 0x00000000 0x00000000 0x00000000 0x00000000 Note: any answer not using ARMlite compatible instructions will be awarded no marks

The Correct Answer and Explanation is:

The given memory snapshot suggests a sequence of data values stored at consecutive memory addresses. The values seem to represent some kind of initialization or data transfer. Based on the provided values, we can infer that the ARMlite assembly code is writing values to memory addresses.

Here’s the corresponding ARMlite assembly code that could have generated this outcome:

asmCopyEditMOV R0, #0x0001   ; Load immediate value 0x0001 into register R0
STR R0, [R1, #0x10]  ; Store value in R0 at memory location (R1 + 0x10)
MOV R0, #0x0002   ; Load immediate value 0x0002 into R0
STR R0, [R1, #0x20]  ; Store value in R0 at memory location (R1 + 0x20)
MOV R0, #0x0003   ; Load immediate value 0x0003 into R0
STR R0, [R1, #0x30]  ; Store value in R0 at memory location (R1 + 0x30)

Explanation:

1. MOV R0, #0x0001: This instruction loads the value 0x0001 into register R0.
2. STR R0, [R1, #0x10]: The STR (store) instruction stores the value in R0 (which is 0x0001) at the memory address calculated by adding 0x10 to the value in R1.
3. Similarly, the following instructions store 0x0002 and 0x0003 at subsequent memory addresses with an offset of 0x20 and 0x30 from R1.

This sequence stores the values 0x0001, 0x0002, and 0x0003 into the corresponding memory slots. If R1 was initialized properly (e.g., set to 0x0000), it would match the data layout you provided in the memory display.