Included tags: Documentation ×
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Official Addon Boards • mt32-pi not Booting on Model 3 A+ board; Shows "Power Failure Type B" BlinkPattern [Solved]

MISTerFPGA about 13 hours ago

This was originally going to be a request for help, but in the effort of collecting information for my issue, I was able to find a solution.ProblemI got a misterfpga.co.uk mt32-pi hat, a Raspberry Pi 3 Model A+ board, and a Geekworm enclosure. I prepared …

programming • BBC MOS help: Best serial buffer approach for my BASIC 6502 port?

Stardot about 1 day ago

Hi everyone ! I'm currently on a long-term assembly project to port BBC BASIC 4r32 to a Ben Eater 6502 breadboard computer. See here for details: https://github.com/chelsea6... I've found out that pasting doesn't work well, because charact …

AlphaTop/ECS Green Laptop documentation thread.

VCFed about 2 days ago

This thread is for myself and anyone else to post findings and documentation info related to AlphaTop and ECS Elitegroup laptops that were part of the "Green" series, sold by various local distributors throughout the 90s and 2000s, including Micr …

HP-85a w/ HP-IB Interface (82937A) POST Error 114

VCFed about 3 days ago

Hi There. I have an HP-85a that works perfectly...except, I just recently purchased an HP-IB interface card for it so I could connect it to my HP 9121B disk drive. I have the 00085-15001 Mass Storage ROM in my ROM Drawer. When I power up the machine I g …

DEC RW500 Manual needed

VCFed about 3 days ago

My DEC Jukebox RW500 throws some errors and before I spend any time on getting WORM discs I should fix this. Unfortunately my search for documentation was not successful so I started to wonder if someone here has a link or the chance to scan me the pages w …

How to create (missing) man pages

VCFed about 6 days ago

As I reverse engineer code on the Tek4404, I learn more about exact limits of commands, required formats etc etc. Is there a simple way of generating documentation beyond just text files? Perhaps some nroff based thing? I appreciate not a lot of people w …

WANTED: Photos of vintage laptops for a large-scale documentation project!

VCFed about 9 days ago

Hello to anyone who's reading this! I run MacDat, a website dedicated to preserving online info on vintage Macintosh hardware, and on vintage PC Laptop hardware. My eventual very long-term goal is to document just about every laptop released in the 1990s. …
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32-bit acorn hardware • A4000S Restoration

Stardot about 9 days ago

Hi all,I acquired an Acorn A4000S a few days ago, I'm in the process of restoring, deep cleaning etc.The system has the original monitor, mouse, keyboard and documentation, a really lovely machine. So far I've removed the CMOS battery before it causes any …

STD BUS Win Systems MCM-SBC Docs Needed

VCFed about 12 days ago

I have a 4MHz Z80 single board computer with an 8" floppy drive interface that looks interesting. But I haven't been able to find any documentation on it. It is circa 1983 and the company is still around but seems to have abandoned all its legacy doc …

32-bit acorn software: RISC iX • How to run RISC iX for yourself!

Stardot about 14 days ago

To commemorate the opening of the RISC iX forum, it feels like a good topic to start with (and perhaps to make sticky?) would be a mention of the cloned RISC iX hard disc image, which allows for people to run RISC iX on other machines and emulators! (Thou …

8-bit acorn software: other • GSINIT "unsuitable"?

Stardot about 14 days ago

GSINIT/GSREAD are documented in the Master Reference Manual part 1 (D.10-1), something I've always treated as a pretty authoritative programming reference since it was one of the later pieces of official Acorn documentation for the MOS.But I noticed this …

IBM 62PC "Piccolo" - Where is the head lock?

VCFed about 16 days ago

Hello, I just bought an IBM 62PC for a pretty good price, and the seller offered to lock the heads for me if I could tell him where the lock is. We found the spindle lock, but not the actuator lock. Does this drive have one, if so where? I doubt it works …

Jobs for Experienced Professionals. • #hiring for Senior Mainframe Developer for our client based at #Malaysia

zMainframes about 17 days ago

Role: Senior Mainframe DeveloperLocation: MalaysiaJob Description:Must have (maximum of 5 bullet points)· An organized person with good time management and follow-up skills, able to work under pressure to deliver results on schedule and tight timeli …
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General Discussions • MiSTer's grandad namesake - miSTER z80

MISTerFPGA about 18 days ago

Yesterday I learned there was actually a micro controller/computer named miSTER before - miSTER Z80/ComPAN. Produced in Poland circa 1985, it started as an industrial real-time controller, but was also used to make microcomputers for office/scientific use …

Apple ][ Plus Troubleshooting or Documentation

Apple Fritter about 21 days ago

Hello Everyone, I have received an Apple ][ Plus. When I turn it on, it only shows "APPLE ][" on the screen. No blinking cursor. Is this a problem? Typing doesn't appear to do anything. I don't have any software disks to try and boot using. Also, if ther …
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BYTE, Inc. Backplane Motherboard C61102

VCFed about 22 days ago

Does anyone have any info on this motherboard? It appears to be an S100 with 10 bus ports. Obviously, it originally came in kit form. I've looked through the first 15 or so BYTE magazines and cannot find a reference to it. I'm not positive it is even relat …

UNCLE BERNIE'S IOU (and MMU) SUBSTITUTES IN PLDs

Apple Fritter about 23 days ago

Hi fans -may may have followed the work done by two people on substituting the MMU, see here: https://www.applefri... those who don't know yet, the MMU and the IOU are full custom ICs in DIL-40 p …

IBM AS/Entry Advanced/36 9402-236 Documentation

VCFed about 26 days ago

Dear all, likely I will get my hands on an IBM AS/Entry Advanced/36 9402-236 machine. As far as I know, this is the link between System/36 and AS/400 with the SSP operation system running as an emulation on a slightly crippled AS/400 machine? As the mach …

communications • Sharing the Prestel Adapter or a Modem over Econet

Stardot about 26 days ago

Some of the Econet documentation mentions sharing Modems and Prestel access over an Econet. Admittedly I can't actually find where they're mentioned but I don't think I dreamt it.Having read through the manual for the Prestel Adapter it says users can sha …

Newcomers Forum • How to Create Game Directories?

MISTerFPGA about 27 days ago

I've been trying to create directories for the Super Gameboy Core, Gameboy Color 2P, and GBA2P etc, so I can play those games without having to use the <UP-DIR> every time.I right clicked in WINSCP > create new directories for these cores etc and …

L/F Technologies serial parallel card

VCFed about 29 days ago

Hello VCF, I purchased a s-100 serial card with no documentation on how to use it. I was wondering if someone knew where some example code for something similar to this I could look at and learn how to control it. The board is a L/F Techonogies SPIO boar …
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Help with TEI floppy controller

VCFed about 29 days ago

Hello to everyone, I have an IMSAI 8080 I am currently working on. recently purchased a floppy controller and a serial card from ebay and now that I have them with no documentation I am stuck. The floppy controller: This is a TEI inc FDC-2 floppy controll …
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Micro Palm Computers PC/4000 & PC/5000

VCFed about 30 days ago

Hello. Wondering if anyone has any information about these handheld IBM PC clones (running on 80C88s). I've got a PC/4000 and have made a few videos about it (see Github repository below if interested). I've collated all the information I've been able …
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Scene • Full documentation of SETNAM filename syntax, and different values of Secondary Address for different devices?

Lemon64 about 30 days ago

To write a file to disk, I have been calling SETNAM with filename set to "@0:myfile.txt,S,W". If I don't prepend the "@0:" part, I cannot overwrite the file if it already existed. I know that S means Sequential file and P means PRG, and last param is eith …

TRS-80 model 2

VCFed about 1 month ago

Picked up a TRS-80 II system with eight-inch drive, printer and lots of documentation and software. Going to assume that this was a larger version of the TRS-80 system that was maybe intended for business? Or something back in the days before DOS ruled the …