HLASM Language Reference

EXITCTL Instruction
| AR Register - Access
| CR Register - Control
| CR32 Register - Control 32-bit
| CR64 Register - Control 64-bit
| FPR Register - Floating-Point
| GR Register - General
| GR32 Register - General 32-bit
| GR64 Register - General 64-bit
| If expression_5 is omitted, the assembler assigns a null value to the assembler
| type, and querying the value using the SYSATTRA build-in function returns a
| null value.
The EQU instruction can be used anywhere in a source module after the ICTL
instruction. Note, however, that the EQU instruction will initiate an unnamed control
section (private code) if it is specified before the first control section.
Using Conditional Assembly Values
The following rules describe when you can use the value, length attribute value, or
type attribute value of an equated symbol in conditional assembly statements:
If you want to use the value of the symbol in conditional assembly statements,
then:
– The EQU statement that defines the symbol must be processed by the
assembler before the conditional assembly statement that refers to the
symbol.
– The symbol in the name field of the EQU statement must be an ordinary
symbol.
– Expression_1 must be an absolute expression, and must contain only
self-defining terms or previously defined symbols.
If only expression_1 is specified, the assembler assigns a value of 1 to the
length attribute, and a value of U to the type attribute of the symbol during
conditional assembly. You can use these values in conditional assembly
statements, although references to the length attribute may be flagged.
If you specify expression_2 or expression_3 and you want to use the explicit
attribute value during conditional assembly processing, then:
– The symbol in the name field must be an ordinary symbol.
– The expression must contain only self-defining terms.
EXITCTL Instruction
The EXITCTL instruction sets or modifies the contents of the four signed fullword
exit-control parameters that the assembler maintains for each type of exit.
►►──┬─────────────────┬──EXITCTL────────────────────────────────────►
└─sequence_symbol─┘
┌
────────────────────────┐
►──exit_type── ▼ ─,──┬───────────────┬ ──
(1) ─┴────────────────────────────►◄
└─control_value─┘
Note:
1
From one to four values to be supplied.
Chapter 5. Assembler Instruction Statements 187