TAL Reference Manual

Compiler Directives

TAL Reference Manual—526371-001

16-71

Example of ROUND Directive

truncated assignment value is 5 or more, a one is added to the absolute value of the

final least significant digit.

NOROUND turns the rounding setting off. That is, rounding does not occur when a

FIXED value is assigned to a FIXED variable that has a smaller

fpoint. If the fpoint of

the assignment value is greater than that of the variable, the assignment value is

truncated and some precision is lost.

Example of ROUND Directive

This example rounds all FIXED values:

?ROUND !Request rounding

!Global declarations

PROC a;

BEGIN

FIXED(2) f1;

FIXED(3) f2;

f1 := f2;

END;

RP Directive

RP sets the compiler’s internal register pointer (RP) count. RP tells the compiler how

many registers are currently in use on the register stack.

is the value to which the compiler is to set its internal RP count. Specify an

unsigned decimal constant in the range 0 through 7. If you specify 7, the compiler

considers the register stack to be empty.

Usage Considerations

The RP directive can appear only within a procedure.

The register pointer (RP) is a field in the environment register (ENV) that points to the

top of the register stack.

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