General
Application area: | Contingency processing; see "Contingency processes" |
Macro type: | Type S, MF format 1: standard/E/L form; see "S-type macros" |
Macro description
The RETCO macro enables return from a contingency process. Control is returned to a basic task or contingency process having the same or a lower priority level.RETCO must not be issued in the basic task (abnormal program termination with error message ETMEV03).
Macro format and description of operands
RETCO |
[MF=L / E] |
MF
For a general description of the MF operand, its operand values and any subsequent operands (e.g. for a prefix), see section “S-type macros”. The valid MF values are given at the start of the macro description under “Macro type” and are included in the macro format.
For examples, see section “Contingency processes” and the POSSIG macro description ("POSSIG - Post signal request").