PSECT

General Compiler Directive: Modifies characteristics of a common block.

Syntax

cDEC$ PSECT /common-name/ a[,a] ...

c

Is one of the following: C (or c), !, or *. (See Syntax Rules for Compiler Directives.)

common-name

Is the name of the common block. The slashes ( / ) are required.

a

Is one of the following:

  • ALIGN= val or ALIGN= keyword

    Specifies minimum alignment for the common block. ALIGN only has an effect when specified on Windows* and Linux* systems.

    The val is a constant ranging from 0 through 6 on Windows* systems and 0 through 4 on Linux* systems. The specified number is interpreted as a power of 2. The value of the expression is the alignment in bytes.

    The keyword is one of the following:

    Keyword

    Equivalent to val

    BYTE

    0

    WORD

    1

    LONG

    2

    QUAD

    3

    OCTA

    4

    PAGE1

    i32: 12

    i64: 13

    1Range is 0 to 13 except on L*X32 , where the range is 0 to 12.

  • [NO]WRT

    Determines whether the contents of a common block can be modified during program execution.

If one program unit changes one or more characteristics of a common block, all other units that reference that common block must also change those characteristics in the same way.

The defaults are ALIGN=OCTA and WRT.