Parameters

index: Required to identify which occurrence of a message should produce a dump. The index must be a decimal number from 1 to 9 indicated in column 10 of this card. To determine the value of the index, count the number of times a message occurs after the INTDEBUG statement, up to and including the occurrence that is to cause the dump.
message: Required to indicate text to compare against generated error messages; the text is terminated by $$. The message text may be variable length, in columns 12-69, with $$ indicating the end. The $$ terminator may be placed as far as columns 70 and 71. If the terminator is omitted, the message text is assumed to be in columns 11-71.