HLASM Language Reference

&SYSMAC System Variable Symbol
Notes:
1. The value of the type attribute of &SYSLOC (T'&SYSLOC) is always U.
2. The value of the count attribute (K'&SYSLOC) is equal to the number of
characters assigned as a value to &SYSLOC.
3. Throughout the use of a macro definition, the value of &SYSLOC is considered
a constant.
&SYSMAC System Variable Symbol
By varying the subscripts attached to the &SYSMAC you can refer to the name of
any of the macros called between open code and the current nesting level, that is,
&SYSMAC(&SYSNEST) returns 'OPEN CODE'. Valid subscripts are 0 to
&SYSNEST. If &SYSMAC is used with a subscript greater than &SYSNEST, a null
character string is returned.
&SYSMAC with no subscript is treated as &SYSMAC(0) and so provides the name
of the macro being expanded. This is not considered to be an error and so no
message is issued.
The local-scope system variable symbol &SYSMAC is assigned a read-only value
each time a macro definition is called.
Notes:
1. The value of the type attribute of &SYSMAC (T'&SYSMAC(n)) is U, unless
&SYSMAC(n) is assigned a null character string, in which case the value of the
type attribute is O.
2. The value of the count attribute (K'&SYSMAC(n)) is equal to the number of
characters assigned as a value to &SYSMAC(n).
&SYSM_HSEV System Variable Symbol
Use &SYSM_HSEV to get the highest MNOTE severity so far for the assembly.
The global-scope system variable symbol &SYSM_HSEV is assigned a read-only
value. The assembler compares this value with the severity of MNOTE assembler
instructions as they are encountered and, if lower, updates it with the higher value.
Notes:
1. The value of the variable symbol is supplied as three numeric characters, not
as an arithmetic (binary) value.
2. The value of the type attribute of &SYSM_SEV (T'&SYSM_SEV) is always N.
3. The value of the count attribute (K'&SYSM_SEV) is always 3.
4. The value of &SYSM_HSEV is unreliable if any MNOTE is incorrectly coded
such that a diagnostic message is generated for the MNOTE statement. The
cause of the diagnostic message must be corrected.
In Figure 71 on page 281 the &SYSM_HSEV variable is updated immediately
when an MNOTE is issued with a higher severity.
Chapter 7. How to Specify Macro Definitions 279