FAIL and WARN can be used to terminate the assembling process if you wish to do so. This is especially useful for macros that get an invalid argument. FAIL and WARN take a string as the only argument and they will print this string out as a normal error with a linenumber.
FAIL stops assembling immediately while WARN continues after printing the errormessage.
Last updated 21 June 1997 by Carsten Sorensen