In <2073666706692890.wa.ron5174gmail....@listserv.ua.edu>, on 02/04/2014 at 08:18 AM, Ron Thomas <ron5...@gmail.com> said:
>I am new to assembler, so not sure i am pharsing the query correctly. Download and read Principles of Operation. >In the attached code whether if the ITMAP bit is on for a memory >location, then after executing the below code is it going to be >turned off.? An exclusive or with zero is a no-op, other than setting the condition code. OTOH, if you used an Execute instruction on XI@TM then the result would depend on the register contents. -- Shmuel (Seymour J.) Metz, SysProg and JOAT ISO position; see <http://patriot.net/~shmuel/resume/brief.html> We don't care. We don't have to care, we're Congress. (S877: The Shut up and Eat Your spam act of 2003) ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN