Work has stopped on this project. It continues in https://github.com/SMerrony/dgemua

Go (Golang) packages of routines used in emulating historical Data General minicomputers

This package is used for partial emulation of an AOS/VS system at the user level. See cmd/vsemug below.

Dginstr generates Go DG CPU opcode definitions from a CSV source.

This command can be installed by performing a go install from its directory. This is required prior to developing any of the related emulators.

VSemuG is an attempt at a user-level AOS/VS emulator.
It is mainly intended to provide a testbed for the mvcpu package and is unlikely to be especially useful (or complete) in its own right.

It has its own Readme and Status pages.

Emulation of various DG peripherals:

• Bus
• Disk4231
• Disk6061 - Moving-head Disk, Type 6061 (AOS/VS - DPF)
• Disk6239 - Moving-head Disk, Type 6239 (AOS/VS - DPJ)
• Magtape6026 - Magnetic Tape, Type 6026
• TTI - console input
• TTO - console output

DebugLogs is a fast memory-based circular logging subsystem with a facility to write out the logs to disk at the end of a run.

This package emulates the volatile memory of DG minis including the stacks and BMCDCH. N.B. There are physical (hardware) and logical (AOS/VS system) versions of some files here - choose which to use with an appropriate build tag.

This package emulates an MV-class CPU at the machine instruction (opcode) level.