Specify QUICK to get a fast, errors-only assembly. QUICK causes NOMASTERLIST, NOLISTFILE, NOOBJECTFILE, NOASERRORFILE, NOTABLESYMBOLS, and NOCROSSREF to be in effect. It also enables ERRORFILE, which defaults to the console. If any of the above controls are used after QUICK, they can be turned on again. In most cases, you can enter the source file to assemble followed by the QUICK control.