pTAL Reference Manual (H06.08+)

Pointers

HP pTAL Reference Manual—523746-006

10-20

Declaring System Global Pointers

The system global pointer declaration associates an identifier with a memory location

at which you store the address of a variable located in the system global data area.

type

is any data type except UNSIGNED; specifies the data type of the value to which

the pointer points.

.SG

is an indirection symbol (see Table 2-7 on page 2-7).

identifier

is the identifier of the pointer.

preset-address

is the address of a variable in the system global data area. The address is

determined by you or the system during system generation.

Note. Only procedures that operate in privileged mode can access system global data.

Example 10-20. System Global Pointer Declaration

INT .SG newname;

type

.SG

identifier

preset-address

;

VST020.vsd