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[Linked Image from og.kervella.org]

Fixing serial communications is fun :-)

7 members like this: Foxhack, Edstrom, Justin, Duke, robcfg, ICEknight
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Still far from fully working but FS-A1ST is starting to show some things.

[Linked Image from jdg.info]

4 members like this: Kaylee, Luengo, R. Belmont, Kale
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While waiting for a potential dump of the Visual 50 character ROM I took a look at another Visual system available on Bitsavers, the XDS-19P:

[Linked Image from i.imgur.com]

It can enter the boot menu successfully and I've more or less implemented the keyboard:

[Linked Image from i.imgur.com]

The LANCE is also working:

[Linked Image from i.imgur.com]

However, trying to "romboot" just resets the system. I assume the ROMs needed for that are undumped (there are 4 empty sockets). Finding the software needed for network booting is probably close to impossible, the whole system is basically unknown to the internet.

6 members like this: Justin, Walker, exidyboy, robcfg, pmackinlay, R. Belmont
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[Linked Image from pbs.twimg.com]

This got dumped, so I tested it, it worked just enough to boot and let me play for a bit. Already submitted and approved, happy March 10 or something.

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I've committed the driver. It works reasonable well as far as I can test it. I've setup a virtual Debian installation to provide BOOTP and TFTP services for it, and it successfully tries to network boot:

[Linked Image from i.imgur.com]

Quite amazing actually, that a current Linux installation (I've used Debian 12) can provide software support for a terminal that is now 34 years old.

3 members like this: exidyboy, Kale, R. Belmont
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I have a version 3.1L for X15 and I think X19 as well:

https://drive.google.com/file/d/1mIJJQ-RY9x4EchpY6J2X8lJl4Jl9e_6-/view?usp=share_link

I once had a version 3.0.2 but it failed to restore from a QIC backup tape unfortunately.

I have two X15 so I can dump the ROM cartridge from it as well (not sure if it is any different from the X19 though)

I actually have the manual for it as well. Need to dig it out.

Last edited by MattisLind; 03/14/24 04:52 PM.
8 members like this: exidyboy, Golden Child, Kale, Duke, Walker, Lord Nightmare
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Thank you Mattis, that's amazing! I can successfully boot the file:

[Linked Image from i.imgur.com]

The build-in window manager and apps:

[Linked Image from i.imgur.com]

Running flwm with a few applications:

[Linked Image from i.imgur.com]

A lot of fun to play around with smile

6 members like this: MattisLind, Justin, R. Belmont, robcfg, Golden Child, Kale
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Bitsavers managed to acquire a bunch of dumps for the Visual 50, including the chargen ROM and the keyboard. It looks like this currently:

[Linked Image from i.imgur.com]
(connected to a Debian system, running MC)

[Linked Image from i.imgur.com]
(first page of "advanced" setup mode)

The way attributes are handled is still a mystery (so it's missing things like underline).

2 members like this: Kale, R. Belmont
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it looks like I remembered the color of the screen incorrectly from the one I bought too long ago
[Linked Image from bitsavers.org]

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IBM 5100 is now working pretty nicely. Thanks to the good work of others (Christian Corti and Tom Stepleton), most of the firmware for this very firmware-heavy system had already been dumped. There's also copious good quality IBM documentation available, which made the work fairly straightforward.

Without repeating all the information that's better presented elsewhere, the IBM 5100 was a very early (1975) portable computer, with its own PALM (apparently "Put All Logic in Microcode") single-card CPU. The CPU and much of the logic in the system is built up from IBM gate arrays, and even the firmware is stored in IBM's own ROS (read-only storage) chips; this is not so surprising for the period, however it did present some challenges for dumping.

An interesting point is that the APL and BASIC languages were ported to this machine by emulating their original big-iron hosts (IBM System/360 Model 50 for APL and IBM System/3 Model 6 for BASIC), so the firmware contains not just the language interpreters, but system emulation code as well.

The emulation runs both languages, with configurations between 16K to 64K of RWS (read-write storage in IBM).

APL (the asterisk is the exponentiation operator):
[Linked Image from i.imgur.com]

BASIC:
[Linked Image from i.imgur.com]

What's not done:
- tape drive
- printer (I'm not very interested in tackling this)
- communications options (also not too excited about them)
- 5110, 5120 and 5130 models, including floppy disk drive

7 members like this: Justin, exidyboy, MattisLind, Kaylee, Vas Crabb, Praxis
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