Makes the Compiler display error lines and error messages on the screen.
>>-.---.-.----.--ECHO---------------------->< +-/-+ +-NO-+
None
| Default: | ECHO (Dialect ) |
| Phase: | Syntax check |
| $SET: | Any |
Set to NOECHO immediately by ECHOALL.
For each error, the source line is displayed together with an error number and (unless BRIEF is set) an explanatory message.