Seminar Details

TAL/pTAL Programming (U4198S)

ETC
U4198S
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Dauer: 4 Tage
Preis: € 2.688.- exkl.MwST
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This course teaches a basic understanding of the Transaction Application Language (TAL) and its usage. Through a series of exercises and labs, students will gain sufficient understanding of syntax and operations to develop and maintain TAL and pTAL programs. 
 
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Zielgruppe

Dieses Seminar richtet sich an:
Systems programmers or maintainers who want to become proficient TAL or pTAL programmers. 

Vorkenntnisse

Für dieses Seminar werden folgende Kenntnisse empfohlen:
Concepts and Facilities course Recommended: At least six months of programming experience, preferably with C, PASCAL, or other block-structured procedure-based languages. Alternatively, one year of COBOL 85 programming experience

Schwerpunkte

Introduction to TAL/pTAL
  • Introduce the Tandem Transaction Application Language (TAL and pTAL)
  • Describe TAL/pTAL programming in the Guardian environment
  • Describe tools to assist the developer in writing and debugging TAL and pTAL programs 

Program organization and general syntax  
  • Discuss basic syntax and organization of TAL programs
  • Discuss identifiers, begin-end blocks, constants, operators, variable declarations, and procedure declarations
  • Describe compiler (both TAL and pTAL) directives that control listings
  • Describe sourcing from another file
  • Explain the environment set up for the Inspect product and compile for syntax only
  • Demonstrate basic Inspect software commands 

Simple data types and arrays program flow statements  
  • Describe how data is stored and what facilities TAL provides to access data
  • Discuss correct data types for various purposes, definitions, literals, labels, and data equivalencing
  • Describe types of program flow statements and their usage
  • Describe statements for CASE, IF, program control, bit extraction, and manipulation
  • Lab Exercise
  • Use constructs such as the CASE statement and WHILE loop 

Terminal I/O 
  • Discuss how to perform terminal I/O in programs
  • Discuss error handling and data conversion
  • Lab Exercise
  • Perform terminal I/O to prompt for data and implement data conversion 

Operators and expressions 
  • Describe types of operators and expressions
  • Discuss arithmetic expressions and conditional expressions
  • Discuss special expressions such as: assignment, CASE, IF, and group comparison expressions 

Pointers and addressing 
  • Describe direct and indirect data access, pointers, and structures
  • Discuss additional pTAL pointer data types
  • Discuss data transfer and scan statements to illustrate use of pointers and structures
  • Describe pTAL caveats
  • Lab Exercise
  • Use pointers, addressing, and data movement 

Procedures and subprocedures 
  • Describe procedures and subprocedures, with or without parameter passing
  • Discuss procedure declaration, subprocedure declaration, and procedure calls and returns
  • Explain the use of formal and actual parameters in procedure calls and returns
  • Discuss TAL and pTAL considerations for Guardian procedures that are obsolete for pTAL procedures
  • Lab Exercise
  • Code procedures, with and without parameters
  • Invoke procedures, with and without parameters 

Interfacing C and TAL 
  • Describe the Common Run-Time Environment (CRE)
  • Demonstrate how to interface C and TAL and memory model considerations
  • Discuss the use of development tools such as Bind, nld, and noft
  • Lab Exercise
  • Build runnable units from separately compiled C and/or TAL objects 
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