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Topics - emptiness

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I'm the organiser for the London Retro Computing meetup group: https://www.meetup.com/London-Retro-Computing/

Since all events are currently via zoom, the "London" bit of the name isn't really important at the moment :)

I'm always looking for people willing to give talks or demos. We've not had anyone give an Enterprise related talk yet so if you have something you'd like to talk about or demo please let me know. It doesn't have to be a long talk. I'd like to organise an event with several short talks once I have enough volunteers.

Programming / EXOS source code?
« on: 2020.September.27. 23:04:48 »
Did anyone ever produce an annotated disassembly of the EXOS 2.x ROM? I've had a bit of a look, but not found anything. The Spectrum community has http://www.primrosebank.net/computers/zxspectrum/docs/CompleteSpectrumROMDisassemblyThe.pdf but EXOS appears to be a far more interesting system and I'd like to know more about the internals.

I'm aware that I could put a ROM image through a disassembler, but then I'd have to know what parts of the ROM were data and what was code and I'm curious whether anyone has already done that work and been kind enough to annotate the disassembly.

There's a neat disassembler toolkit for the Spectrum world (https://github.com/skoolkid/skoolkit) that uses profiling in an emulator to work out what is code and what is data. Do similar tools exist for the Enterprise?

Display / Any ideas on cause of this display fault?
« on: 2020.July.19. 15:28:08 »
Now I've got a SCART cable I was able to test my Enterprise 64 and the Enterprise 64 motherboard that I own. Happily, the complete Enterprise 64 appears to work flawlessly. The motherboard looks to have a display fault, however (and since I've tested the complete Enterprise 64 I know it's not the cable or display).

When it starts I can see the coloured "Enterprise" text but there is an issue with horizontal stability. Not sure how to describe it but hopefully the attached video shows what I mean.

Does this look like a capacitor issue? Would be really helpful to know if this fault has been seen before.

The good news is that since it's got as far as displaying a recognisable logo the board is probably in pretty good shape despite having been left as a bare board in storage for many years.

Other topics / N00b alert!
« on: 2020.June.19. 09:55:09 »
I grew up with the ZX Spectrum 48K and was never able to get hold of an Enterprise in the 1980s. I'm now a software engineer looking to get back into Z80 assembler and have been playing with the RC2014 (https://rc2014.co.uk/)

I just bought an Enterprise 64 from a seller who seems to have several boxed computers which he's selling as new. Obligatory photo included :) Everything seems to be there apart from the BASIC cartridge. The seller claims that they never had this, but given the box contains a BASIC programming manual this seems suspicious to me.

Does anyone happen to know if Enterprises were ever shipped without BASIC?

I've ordered a SCART cable from http://retrocables.es/tienda/index.php?id_product=48&controller=product&id_lang=1 and am attempting to control my patience so I can see if the Enterprise is working ok? I'm also hoping to buy an SDcard adaptor from Szorg.

While going through my stash of old hardware I also found what looks to be an Enterprise motherboard. I'm not sure how I got hold of it or if it works but it would be kind of fun to see if I can get it working and build a new case and keyboard for it.

Anyway, I was really pleased to find this forum. Great to see there is still an active community around the Enterprise. It feels like I've been given a second chance after missing out in the 80s'. I beg forgiveness in advance for any dumb questions I might ask while getting used to this new platform. :)

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