6530 Programmer's Guide

Conversational Mode Operation
6530 Programmer’s Guide 2-47
Report Exec Return Code (Esc - W)
The Esc - W sequence returns the Exec function return code, as well as
the return and exit codes for the child process started by an Esc - V
sequence. The returned message has the following format:
SOH $ execcode proccodel proccode2 proccode3 CR
where:
SOH is a control character (01H) that acts as a start of header for
messages returned to the host.
The dollar sign ($) identifies this message as an operating system
return code message.
execcode is one of the following ASCII characters that specifies
the Exec function return code:
space (20H) = operation successful, OK to get child exit
code
! 21H) = invalid function
“ (22H) = file not found
# (23H) = path not found
% (25H) = access denied
( (28H) = not enough memory
* (2AH) = bad environment
+ (2BH) = bad format
| (7CH) = reserved for IXF PC id
} (7DH) = program file name not found
~ (7EH) = security violation (EXEC function parameter
not set to ON)