I continue not to understand why you repeatedly fail to provide the information necessary for the good folks on this list to help you.
<snip> So I have LOAD a module amode 64 rmode 24 </snip> Your module does not need to match the RMODE of your DCB unless your DCB is physically resident in the module, namely your module is not reentrant. <snip> After loading I turn the 1 bit to the right off now I have a clean half address </snip> Perhaps you didn't do what you thought you did. <snip> when I BASR to it bombs and the PSW has the one bit on </snip> Show the symptom dump. Show the registers at the time of the error. Show the information from the program check. Show something... Peter Relson z/OS Core Technology Design