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CABSAD$, CRELAD$–Addressing Routines
CSYMVL$
CSYMVL$ is the function code that determines which of the absolute addressing
routines are called by C$ABSAD. It must be enclosed by apostrophes.
symbol
Name of the symbol for which the routine computes a value. The symbol name may
be from 1 to 12 characters selected from the set A through Z, 0 through 9, and the
special character $. If given as a string, then the parameter must be surrounded by
apostrophes on the procedure call. This parameter may also be given as the address
of a two-word area that contains the name in Fieldata format, left-justified and spacefilled.
If the parameter symbol is omitted, then the routine uses the value in registers A0
and A1 for symbol. In this case, the name must be left-justified in the register pair
and space-filled. The name must be in Fieldata format.
pkt-addr
See 6.1.
Returns
error
normal
Error conditions are the same as those for CBX$.
Register A0 contains the value of the symbol, and register A1 contains a Segment
Load Table (SLT$) pointer (as discussed for CABSAD$). If the symbol is absolute,
register A1 is always zero. If the collection source uses the TYPE EXTDIAG
statement, any externally defined symbol of the collection may be looked up.
Otherwise, unreferenced symbols and symbols defined in SYS$*RLIB$ elements are
excluded. If the symbol is not global, in other words, if it is defined instead by a
locally included element, one of the local definitions is returned. The definition that
is returned cannot be predicted.
6.2. Relocatable Addressing Routines
The CRELAD$ routines are called by the MASM procedure C$RELAD. C$RELAD is used
to generate the calling sequence for the relocatable version, the common bank version,
or the common bank version using the Auto Switch calling sequence. Section 3
describes the advantages and disadvantages of using the different types of calls.
Calling Format
C$RELAD[,t] func-code [,p1,p2] [pkt-addr]
error return
normal return
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