[rescue] AT&T 3B2 Emulator - Help Wantd

[Seth Morabito]

* On Mon, Feb 15, 2016 at 11:42:47AM -0600, Bill Bradford <mrbill at mrbill.net> wrote:
> This is *great*!  Welcome to the list, I look forward to this project.

Thanks for the welcome!

It occurs to me that I forgot to point to the source. It's in the
"3B2" subdirectory of my fork of the SIMH project, here on GitHub:

https://github.com/sethm/simh

Work was frozen for about a year due to life events, but I've just
started up active development again.

What's done:

* WE32100 core (with some mysterious bugs not yet squished)
* Floppy disk controller
* UART and console IO

What's not yet done:

* MMU
* Hard disk controller

The status right now: You can boot to the ROM diagnostics and try to
execute binaries off of a floppy image. But without the MMU, it's not
terribly useful.

Example output:

------------------------------------------------------------------------

AT&T 3B2 Model 400 simulator V4.0-0 Beta        git commit id: 10c5760f
sim> boot cpu
 U? 
FW ERROR 1-01: NVRAM SANITY FAILURE
               DEFAULT VALUES ASSUMED
               IF REPEATED, CHECK THE BATTERY

FW ERROR 1-02: DISK SANITY FAILURE
               EXECUTION HALTED

SYSTEM FAILURE: CONSULT YOUR SYSTEM ADMINISTRATION UTILITIES GUIDE


Enter name of program to execute [  ]: ?

Enter an executable or system file, a directory name,
or one of the possible firmware program names:

baud    edt    newkey    passwd    sysdump    version    q(uit)


Enter name of program to execute [  ]: version

Created: 05/31/85
Issue: 22222222
Release: 1.2.1
Load: PF3
Serial Number: 22300e0b


Enter name of program to execute [  ]: 

------------------------------------------------------------------------

Hopefully I'll make progress squishing the CPU bugs and getting the MMU
implemented over the next couple of weeks.

-Seth