pTAL Guidelines for TAL Programmers

Overview

pTAL Guidelines for TAL Programmers—527256-002

1-3

Deciding Whether to Convert to pTAL

You must evaluate each TAL program to determine whether to convert it to pTAL.

You might decide not to convert a TAL program to pTAL because it:

•

Executes primarily system code, not code from your application

•

Makes extensive use of low-level TAL code constructs that are difficult to convert to

pTAL (many CODE statements, many references to stack markers, and so forth)

•

Runs only during nonpeak hours, so program speed is not important

•

Is used very infrequently

Figure 1-1. Compiling pTAL Source Code

pTAL Source Code

pTAL Compiler

With SYNTAX

Directive

TAL Compiler

(D40 or later)

pTAL

Compiler

EpTAL

Compiler

TNS Object File TNS/R Object File TNS/E Object File

Accelerator

Accelerated Object File

for TNS/R Architecture

OCA

Accelerated Object File

for TNS/E Architecture

Native Compilers

Native Object Files

VST001.vsd