OPT can be used to change some of the options during assembling you source instead of defining them on the commandline.
OPT takes a comma-seperated list of options as its argument:
PUSHO OPT g.oOX ;Set the GB graphics constants to use these characters DW `..ooOOXX POPO DW `00112233
The options that OPT can modify are currently: b, e and g
Last updated 20 July 1997 by Carsten Sorensen