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General Information

Hercules System/370, ESA/390, z/Architecture Emulator

Version 4 Release 00

First Edition, November 21, 2015


Hercules implements only the raw S/370, ESA/390, and z/Architecture instruction set, it does not provide any operating system facilities. This means that you need to provide an operating system or standalone program which Hercules can load from an emulated disk or tape device. You will have to write the opera¬ting system or standalone program yourself, unless you possess a license from IBM to run one of their operating systems on your PC, or use IBM programs and operating systems which have been placed in the public domain.

It is YOUR responsibility to comply with the terms of the license for the operating system you intend to run on the Hercules Emulator.


The following is a list of trademark acknowledgments and copyright notices of product and company names mentioned in this book. Other product and company names in this book which are not listed below may be the trademarks or registered trademarks of their respective owners.

  • IBM, System/370, ESA/390, z/Architecture, MVS, OS/390, z/OS, VM, VM/ESA, z/VM, VSE, VSE/ESA, z/VSE are trademarks or registered trademarks of International Business Machines Corporation (IBM).
  • Windows XP, Windows Vista, Windows 7, Windows Server 2003, Windows Server 2008, Visual C++ Toolkit, Visual C++ Express are trademarks of Microsoft Corporation.
  • Linux is a trademark owned by Linus Torvalds. The Linux Mark Institute is the exclusive licensor of the Linux trademark on behalf of its owner Linus Torvalds.
  • WinPcap is copyrighted by NetGroup, Politecnico di Torino (Italy).
  • Cygwin is copyrighted by Red Hat, Inc.
  • Vista tn3270 is copyrighted by Tom Brennan Software.
  • Pentium, XEON are trademarks or registered trademarks of Intel Corporation.
  • Athlon, Opteron are trademarks or registered trademarks of Advanced Micro Devices (AMD), Inc.
  • Xmit Manager is copyrighted by Neal Johnston-Ward.
  • FLEX-ES is a registered trademark of Fundamental Software, Inc.


The Hercules manuals would not have been possible without the assistance of many people and I would like to thank all those who helped me. In particular I would like to thank:

  • The Hercules developers for their documentation on various websites from which I derived a great deal of information.
  • Roger Bowler and Fish for proof-reading the manuals.
  • Loris Degoianni for allowing me to use parts of the original WinPcap documentation.
  • Tom Brennan for allowing me to use parts of his Vista tn3270 documentation.
  • My colleagues for working with early previews of the documentation, beginning with just a few pages.
  • Mike Cairns for reviewing and editing the manuals.
  • Robert Allan for providing the “Linux Installation” part.
  • Lutz Mader for providing the “Mac OS X Installation” part.
ibm/hercules/geninfo/start.txt · Last modified: 2023/08/06 13:31 by Site Administrator