Overview

The intent of these notes is to supplement the class readings and lecture notes for CSCI 360, Computer Programming in Assembler Language. It should be used in conjunction with the Assembler Language with ASSIST and ASSIST/I text; it is by no means intended to replace it. See ESA/390 Principles of Operation for further help on the machine instructions.

Table of Contents

• Log Sheets
1. Programming Assignment Log Sheet
2. Grade Sheet
3. Abend Log Sheet
• JCL
1. Assist JCL
2. Assembler JCL
3. Print Punch
• Documentation Standards
1. Routine (Main Box) Documentation
2. Source Code Documentation
1. Line Documentation
2. Spacing Source Code
3. Macro Documentation Standards
• Structured Pseudocode
1. Sequence Construct
2. If-Else Construct
3. If-ElseIf-Else Construct
4. Do-While Construct
5. Converting Pseudocode into Assembler
• Debugging Tips
1. Chapter 2
2. Chapter 3
3. Chapter 4
4. Chapter 5
5. Chapter 6
6. Chapter 8
7. Chapter 9
8. Various SOCn
• Overflow
1. Overflow Discussion
2. Detecting Overflow
3. Detecting Overflow with Subtraction
• DC Statement Examples
1. DC Statement Types and Format
2. Character Examples
3. Fullword Examples
4. Halfword Examples
5. Address Examples
6. Binary Examples
7. Hex Examples
8. Packed Examples
9. Zoned Examples
• Addressability and the USING statement
• XDECI and XDECO Instructions
1. XDECI
2. XDECO
• A Complete Program
• Load Address instruction
1. Load Address
2. Common uses
• Dumps
1. Dump Discussion
2. Dump Assignment 1
3. Dump Assignment 2
• The ORG Instruction
• Decimal Instruction Examples
1. PACK
2. UNPK
3. ZAP (ZERO AND ADD)
4. AP (ADD DECIMAL)
5. SP (SUBTRACT DECIMAL)
6. MP (MULTIPLY DECIMAL)
7. DP (DIVIDE DECIMAL)
8. CP (COMPARE DECIMAL)
• External Subroutines and Linkage Conventions
1. External Routines
2. External Linkage Conventions
3. Coding Conventions
4. Invoking Subroutines
5. Parameter List and Passing Parameters
6. Example for Internal and External Subroutines
• The USING Instruction
• DSECTs
1. DSECT Discussion
2. Advantages
3. Encoding DSECT Labels
• TRT and EX Examples
• IBM Macros
1. The IBM Macro Language
2. Difference Between Macros and Subroutines
3. Macro Definition
4. Format of a Macro Definition
5. Prototype Statement
6. Variable symbols
1. Definition
2. Symbolic Parameters
3. System Variables
1. &SYSNDX
2. &SYSLIST
4. Set Symbols
1. Definition
2. Arithmetic-Set Symbols
3. Binary Set Symbols
4. Character Set Symbols
5. Concatenation Rules
7. MNOTE and MEXIT
8. Conditional Assembly
1. Definition
2. Sequence Symbols
9. Data Attributes
1. Type Attribute
2. Length Attribute
3. Count Attribute
4. Number Attribute
10. Additional Macro Example
• Appendix A - Algorithms

1. Search Algorithms
1. Linear Table Search
2. Binary Search
3. Hashing Explanation
4. Hash Search
2. Sorting Algorithms
1. Bubble Sort
2. Selection Sort
1. Algorithm
2. Break down for coding
3. Assembler code using Index Register
4. Assembler code without Index Register
3. Insertion Sort
4. Insertion Sort with Bucket
5. Merge
• APPENDIX B - HOMEWORKS
1. Homework 1
2. Homework 2
3. Homework 3
• APPENDIX C - Using the Student Computer and Communications Facilities
1. Using the Student Computer and Communications Facilities
2. Using the Computer Science Student Computer Facilities from a Remote Personal Computer
3. Using FTP to Access MVS and Unix
4. Accessing the Student File Servers
5. All NIU ACS Documentation

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This page was last modified by Michael Stack on