Or a dozen or more other non-magic ways of getting into supervisor state. Charles
-----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Robert Netzlof Sent: Saturday, August 8, 2020 10:20 AM To: [email protected] Subject: Re: Case Study: IBM SYSTEM/360-370 ARCHITECTURE (1987) But do remember that in Ye Gude Auld Days, there was a widely known "magic" SVC which granted authorization to the user. On 8/8/20, Doug Wegscheid <[email protected]> wrote: > Site-specific SVC to do so? > > On Saturday, August 8, 2020, 12:11:14 PM EDT, <[email protected]> > wrote: > > Interesting are the two paragraphs on page 302, bottom RHS. > > Case says that nobody used the ASCII capability of the S/360. > > Padegs says that "none of our operating systems were [sic] programmed > to turn in the [ASCII] bit". > > So, no-one was able to use the ASCII facility. > > On 2020-08-08 12:19, Jim Mulder wrote: >> https://www.cs.tufts.edu/comp/150FP/archive/alfred-spector/spector87ibm.pdf >> >> >> Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. >> Poughkeepsie NY > > -- Bob Netzlof a/k/a Sweet Old Bob
