Hi John, z390 Portable Mainframe Assembler and Emulator http://z390.org/
VisibleZ can help you visualize exactly what the mainframe is doing as an assembler program executes http://csc.columbusstate.edu/woolbright/vzHomepage.htm Both are similar and provide excellent learning environments and are self-contained. Best Regards, Sam -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of John McKown Sent: Wednesday, April 22, 2020 6:54 AM To: [email protected] Subject: IBM z ISA assembler & emulator. Does anyone know if there is anything like this (below) for the z ISA? It is a basic assembler, no macros, where you code MIPS assembler into a text file, then load it into the emulator. The code is compiled. You are then in a "debugger" in which you can run the code, or single step. It's quite nice for learning the basics of the ISA. https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fspimsimulator.sourceforge.net%2F&data=02%7C01%7CSamuel.Knutson%40COMPUWARE.COM%7Cb776bb1e03c84c3d68ac08d7e6ab8263%7C893e9ba31b7844d8aca9105fab957fed%7C0%7C0%7C637231496618406891&sdata=c4zm5PjAAjwB9vEIIyc2yuAbf6HXoEqv0c4MMSq4w6U%3D&reserved=0 [quote] *Spim* is a self-contained simulator that runs MIPS32 programs. It reads and executes assembly language programs written for this processor. *Spim* also provides a simple debugger and minimal set of operating system services. *Spim* does not execute binary (compiled) programs. *Spim* implements almost the entire MIPS32 assembler-extended instruction set. (It omits most floating point comparisons and rounding modes and the memory system page tables.) The MIPS architecture has several variants that differ in various ways (e.g., the MIPS64 architecture supports 64-bit integers and addresses), which means that *Spim* will not run programs for all MIPS processors. *Spim* comes with complete source code and documentation. *Spim* implements both a terminal and windows interfaces. On Microsoft Windows, Linux, and Mac OS X, the *spim* program offers a simple terminal interface and the *QtSpim* program provides the windowing interface. The older programs *xspim* and *PCSpim* <https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fspimsimulator.sourceforge.net%2Folder.html&data=02%7C01%7CSamuel.Knutson%40COMPUWARE.COM%7Cb776bb1e03c84c3d68ac08d7e6ab8263%7C893e9ba31b7844d8aca9105fab957fed%7C0%7C0%7C637231496618406891&sdata=V%2FZlIgE4iDKKlTkMToKpGMNkUeHVUYRtdarzhbHzdwE%3D&reserved=0> provide native window interfaces for these systems as well. [/quote] -- People in sleeping bags are the soft tacos of the bear world. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN The contents of this e-mail are intended for the named addressee only. It contains information that may be confidential. Unless you are the named addressee or an authorized designee, you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
