TAL Reference Manual

Compiler Directives

TAL Reference Manual—526371-001

16-68

Usage Considerations

RELOCATE can appear in the compilation command or in the source code.

RELOCATE affects only the source code that follows it, however, so it is safest to

specify it at the beginning of the compilation.

The compiler checks for nonrelocatable data only if RELOCATE appears.

Use RELOCATE when the primary global data area (the area below word address

G[256]) is relocatable. If you are compiling the modules of a program separately or

binding TAL code with code written in other languages, the primary global data must be

relocatable.

When you build the target file, Binder issues warnings for references to nonrelocatable

data.

Example of RELOCATE Directive

In this example, because RELOCATE is in effect, any reference to I (a nonrelocatable

global declaration) produces a warning:

?RELOCATE

!Lots of code

INT i = 'G' + 22; !Nonrelocatable global declaration I

!Lots more code

i := 25; !Reference to I

RESETTOG Directive

RESETTOG creates new toggles in the off state and turns off toggles created by

SETTOG. The RESETTOG directive supports named toggles in addition to numeric

toggles.

VST1647.vsd

toggle-name

toggle-number

toggle-name

toggle-number

( )

RESETTOG