TAL Reference Manual

Equivalenced Variables
TAL Reference Manual—526371-001
10-14
Usage Considerations
base-address
is one of the following base address symbols:
index and offset
are equivalent INT values giving a location in the following ranges:
Usage Considerations
The data type determines how much data the simple pointer can access at a time—
byte, word, doubleword, or quadrupleword.
If you use the CRE, locations G[0] and G[1] are not available for your data.
References to 'G', 'L', or 'S' are not portable to future software platforms.
Base-Address Equivalenced Definition
Structure
A base-address equivalenced definition structure declaration associates a new
structure with a global, local, or top-of-stack base address.
'G' Denotes global addressing relative to G[0]
'L' Denotes local addressing relative to L[0]
'S' Denotes top-of-stack addressing relative to S[0]
0 through 255 For 'G' addressing
–255 through 127 For 'L' addressing
–31 through 0 For 'S' addressing
VST1014.vsd
=
[
index
]
+
offset
-
;
base-address
identifier
STRUCT
.
.EXT
structure-layout
;