TAL Reference Manual

Privileged Procedures
TAL Reference Manual—526371-001
15-9
Example of 'SG'-Equivalenced Simple Pointer
index and offset
are equivalent INT values in the range 0 through 63.
Example of 'SG'-Equivalenced Simple Pointer
This example declares a simple pointer equivalent to location SG + 2 in the system
global data area:
INT .ptr = 'SG' + 2;
'SG'-Equivalenced Structure Pointer
The 'SG'-equivalenced structure pointer declaration associates a structure pointer with
a location relative to the base address of the system global data area.
STRING
denotes the STRING attribute.
INT
denotes the INT attribute.
. (period)
is the standard indirection symbol and denotes 16-bit addressing, in this case in
the system global data area.
.SG
is the system global indirection symbol and denotes 16-bit addressing in the
system global data area.
VST1506.vsd
(
[
index
]
+
offset
-
=
referral
identifier
STRING
;
)
.
.SGINT
'SG'
.EXT
,