xcall XPAINT, paintlit
XPAINT was developed to allow screens that were created with AlphaPAINT 2.0 to be executed by A-Shell. Under AMOS, these screens are assembled into LIT file executables, which are typically executed via AMOS.SBR. Since AMOS machine code will not run on other operating systems directly, A-Shell provides this interpreter that reads the specified LIT file and produces the expected screen display. Note that this only works for LITs generated by AlphaPAINT 2.0.