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Here is white paper on the z390 project I've been working on throughout the pandemic. The appendix includes all the opcodes, mnemonics, and operands. http://www.zopcheck.info/zopcheck.pdf This paper describes a macro assembler program which verifies that the z390 Portable open source assembler correctly assemblers all of the instructions documented in the IBM z/Architecture Principles of Operation (SA22-7832-12) publication found here: https://www.ibm.com/support/pages/zarchitecture-principles-operation If you want to view the program itself and the associated copy files and sample generated files from both z390 and HLASM assemblies, you can download this zip file: http://www.zopcheck.info/zopcheck.zip And finally if you want to download z390 for Windows, Linux, and Mac PC's and run ZOPCHECK yourself, you get download it here and follow readme instructions: http://www.z390.info/releases/z390_v1702.zip As I stated at the end of the paper, all corrections and comments are welcome. Don Higgins [email protected] <mailto:[email protected]> www.donhiggins.org <http://www.don-higgins.net/>
