Hi Rupert; Have you seen "VisibleZ" which can be downloaded via https://punctiliousprogrammer.com/ ?
Regards; Phil -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Rupert Reynolds Sent: Saturday, 13 July 2019 5:18 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Amateur project: microcode emulation Any advice, please? (apart from MVS 3.8J with Hercules. I already have that. But I lost the automation interface I wrote years ago) It's been many years since I was an IBM geek. MVS/ESA and JES3, with Z/OS on the horizon. Is there any microcode available (functionally equiv, if not the genuine article) that might allow me to start with basic 31-bit ESA instructions and perhaps add others as I go? I started an emulator that ran code for unit testing (at kips, not mips :-) ) but the good thing was that when it crashed I could slam it into reverse gear and see how I got there. I always wanted to update it and port it to run on an Android tablet and it seems I have some time now :-) Thanks in advance for any pointers or suggestions. Rupert ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ********************************************************************** IMPORTANT: This e-mail is for the use of the intended recipient only and may contain information that is confidential, commercially valuable and/or subject to legal or parliamentary privilege. If you are not the intended recipient you are notified that any review, re-transmission, disclosure, dissemination or other use of, or taking of any action in reliance upon, this information is prohibited and may result in severe penalties. If you have received this e-mail in error please notify the sender immediately and delete all electronic and hard copies of this transmission together with any attachments. Please consider the environment before printing this e-mail ********************************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN