**Instruction Analysis and Addressing Modes**Suppose we have the instruction `LDA 900` and register `R1` contains `0x100`.**Given Memory:**- **Memory** - Address: `0x800`, Value: `900` - Address: `0x900`, Value: `800` - Address: `0xA00`, Value: `500` - Address: `0xB00`, Value: `600` - Address: `0xC00`, Value: `800`**Objective:**Determine what would be loaded into the Accumulator (AC) with the following addressing modes:1. **Immediate Addressing Mode:** - The operand is directly specified within the instruction. - *Answer to be filled in: "Immediate: [your answer]"*2. **Direct Addressing Mode:** - The operand is found at the address specified in the instruction. - *Answer to be filled in: "Direct: [your answer]"*3. **Indirect Addressing Mode:** - The address of the operand is found at the address specified in the instruction. - *Answer to be filled in: "Indirect: [your answer]"*4. **Indexed Addressing Mode:** - The effective address of the operand is computed by adding the content of an index register (e.g., `R1`) to the address part of the instruction. - *Answer to be filled in: "Indexed: [your answer]"* The correct values to fill in the answers will depend on understanding the specified addressing modes and referring to the given memory addresses and their contents.

Immediate : 900 LDA 900 In this case, 900 will become value .Direct : 800 LDA 900 In this case ,…

Answered: Immediate: type your answer. Direct:…

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Immediate: type your answer. Direct: type your answer. Indirect: type your answer. Indexed: type your answer.

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

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Concept explainers

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.

Question

**Instruction Analysis and Addressing Modes**

Suppose we have the instruction `LDA 900` and register `R1` contains `0x100`.

**Given Memory:**

- **Memory**
- Address: `0x800`, Value: `900`
- Address: `0x900`, Value: `800`
- Address: `0xA00`, Value: `500`
- Address: `0xB00`, Value: `600`
- Address: `0xC00`, Value: `800`

**Objective:**

Determine what would be loaded into the Accumulator (AC) with the following addressing modes:

1. **Immediate Addressing Mode:**
- The operand is directly specified within the instruction.
- *Answer to be filled in: "Immediate: [your answer]"*

2. **Direct Addressing Mode:**
- The operand is found at the address specified in the instruction.
- *Answer to be filled in: "Direct: [your answer]"*

3. **Indirect Addressing Mode:**
- The address of the operand is found at the address specified in the instruction.
- *Answer to be filled in: "Indirect: [your answer]"*

4. **Indexed Addressing Mode:**
- The effective address of the operand is computed by adding the content of an index register (e.g., `R1`) to the address part of the instruction.
- *Answer to be filled in: "Indexed: [your answer]"*

The correct values to fill in the answers will depend on understanding the specified addressing modes and referring to the given memory addresses and their contents.

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