MPM2 z80 emulator

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aaw...@gmail.com

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Feb 11, 2026, 4:56:41 PMFeb 11
to RC2014-Z80
Open source https://github.com/avwohl/mpm2
Runs standard DRI binaries
Comes with modern linux based z80 optimizing PLM compiler
Optional build with all of MPM2 from source
SFTP/SCP file transfer to MPM2 disks
SSH in to MPM2 console
New replacement GENSYS due to bugs in released GENSYS
Used by UADA80 compiler for multitasking test. https://github.com/avwohl/uada80
Supports SFTP/SCP access to MPM2 file system
All of OS and tool chain built from source, ready for your hacking
MPM2 file systems published via HTTP:

The programs RMAC, LINK, LIB, XREF are not built from source because the sources cannot be found.  However, an open source toolchain https://github.com/avwohl/um80_and_friends was used instead.  So if the source build option is chosen 100% of the OS is rebuilt from source with open source tools.

Alan Cox

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Feb 12, 2026, 2:46:12 AMFeb 12
to rc201...@googlegroups.com
This appears to have nothing to do with rc2014,

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aaw...@gmail.com

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Feb 12, 2026, 8:03:46 AMFeb 12
to RC2014-Z80
For RC2014 software development, it saves having to pack one for trips.  Also for running a test suite with many thousands of z80 test programs it is more easily scripted than a real RC2014. If you are doing any MPM2 OS development, even on a real RC2014 you will want to use the GENSYS from this project or at least be aware of the .PRL relocation bug in the DRI released one.

Spencer

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Feb 12, 2026, 9:01:39 AMFeb 12
to rc201...@googlegroups.com
Genuinely curious, but how many people on this group are doing MPM OS development on their RC2014?

Spencer

Tadeusz Pycio

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Feb 12, 2026, 9:42:33 AMFeb 12
to RC2014-Z80
It is difficult to develop this operating system within RC2014 because it lacks the required 50/60Hz clock module.
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