ARM PROCESSOR & ASSEMBLY
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
![**ARM Processor & Assembly Language Programming Question**
**Show the placement of data in the following code:**
```
LDR R1, =0xFFEEDDCC
LDR R2, =0x2000002C
STR R1, [R2]
```
Use:
a) little endian
b) big endian
---
**Explanation:**
This question involves understanding how data is stored in memory with respect to endianness.
- **Little Endian**: The least significant byte is stored at the smallest address.
- **Big Endian**: The most significant byte is stored at the smallest address.
In the given code:
- `LDR R1, =0xFFEEDDCC` loads the hexadecimal value `FFEEDDCC` into register R1.
- `LDR R2, =0x2000002C` sets register R2 with memory address `0x2000002C`.
- `STR R1, [R2]` stores the value of R1 at the memory location pointed to by R2.
Analyze how the value `FFEEDDCC` would be stored at address `0x2000002C` using both little and big endian methods.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffb9a7c18-65f1-48ed-bb7e-4937a04e4157%2F3e3f00d7-6e21-4d9c-8521-d004967611e2%2F24avr98_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**ARM Processor & Assembly Language Programming Question**
**Show the placement of data in the following code:**
```
LDR R1, =0xFFEEDDCC
LDR R2, =0x2000002C
STR R1, [R2]
```
Use:
a) little endian
b) big endian
---
**Explanation:**
This question involves understanding how data is stored in memory with respect to endianness.
- **Little Endian**: The least significant byte is stored at the smallest address.
- **Big Endian**: The most significant byte is stored at the smallest address.
In the given code:
- `LDR R1, =0xFFEEDDCC` loads the hexadecimal value `FFEEDDCC` into register R1.
- `LDR R2, =0x2000002C` sets register R2 with memory address `0x2000002C`.
- `STR R1, [R2]` stores the value of R1 at the memory location pointed to by R2.
Analyze how the value `FFEEDDCC` would be stored at address `0x2000002C` using both little and big endian methods.
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