Ian, Hercules is IMHO rather lax. So often opcodes which were not enabled at a particular hardware level on physical hardware, but don't clash with any existing opcodes, may be enabled at on Hercules. Dave
> -----Original Message----- > From: IBM Mainframe Assembler List <[email protected]> > On Behalf Of Ian Worthington > Sent: Wednesday, March 20, 2024 11:37 PM > To: [email protected] > Subject: Re: OPCODE tables > > I have a dim and distant memory that the Hercules folks might be on top of > this > as, iirc, isn't is possible to change hardware level with a configuration > parameter? > > Best wishes / Mejores deseos / Best wishes > > Ian ... > > On Wednesday, March 20, 2024 at 10:12:03 PM GMT+1, Mark Hammack > <[email protected]> wrote: > > Is there a list somewhere (other than OPTABLE LIST) that shows which > instructions were added at each hardware level? > > I thought PoP used to have something similar but I don't see anything back to > Revision 7 (oldest copy I have). > > > *Mark Hammack* >
