Questions tagged [reference-request]

Requests to identify, locate or recommend literature (or other source) covering a specific topic.

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Critiques of ANSI/Standard/Full BASIC?

I am preparing an article on the ANSI "full BASIC" effort. I know it was heavily criticized at the time, but Google is turning up a surprising paucity of information. I can only find a ...
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11 votes
1 answer
303 views

Source For V2/A4 Missile Analog Guidance Computer Schematic?

As a retro computing hobby project, I'm researching Helmut Hoeltzer's (Hölzer's) work on the Mischgerät analog guidance computer for the V2/A4 ballistic missile, with the goal of validating a ...
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18 votes
6 answers
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Is there any hard data about type-in programs in the 80s?

In the 1980s, type-in listings were a staple of many home computer magazines[1]. This suggests that they added value to the magazine, and that people did actually type them in. On the other hand, ...
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9 votes
1 answer
585 views

Does anyone have a DG Business BASIC manual?

archive.org's DG collection has Single User BASIC and Extended BASIC manuals, but no BB manual. Does anyone have a PDF? The underlying question... the earliest mention of BB I can find is from a 1977 ...
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7 votes
1 answer
261 views

Are there any other historical traces of the earlier versions of the Alternate Multiplex Interrupt Specification by Ralf Brown?

I'm a fervent user of the Alternate Multiplex Interrupt Specification for 86-DOS systems, a method using a common set of multiplexer interfaces over interrupt 2Dh. It was originally developed in the ...
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2 votes
0 answers
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DEC RdbStar information?

I'm putting together an article on TPC-C, and while chasing down leads its primary author mentioned the RdbStar project at DEC. As he described it, the manager of DEC's storage department (Jim Grey? ...
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3 votes
2 answers
266 views

Looking for Popular Mechanics issue on BASIC

I remember being captivated as a teenager by an issue of Popular Mechanics that introduced the BASIC programming language. It would have been late 70's or early 80's. Anyone know how to find which ...
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12 votes
1 answer
762 views

What publication published an early version of the Apple Monitor by Woz?

This is driving me nuts. I am certain I have a downloaded scan of the source code to the 6502 ML monitor Woz wrote, but pre-dating Apple's use of the monitor. I even remember there was some text ...
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10 votes
3 answers
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Any source for German Magazine "Computern mit Kindern", single issue, late 1984?

I wonder if anybody has or knows about a (digital or paper) copy of the single-issue German language magazine "Computern mit Kindern" (Computing with Children), published in Germany in late ...
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10 votes
1 answer
563 views

Is there any public documentation of the LapLink protocol?

Is the protocol used by the DOS Laplink software publicly documented? I seem to remember there were Linux tools that could use it. I cannot find anything useful on their website.
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11 votes
5 answers
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Has there been any effort to research the undocumented Thumb instructions of ARM7TDMI?

Many CPUs have "holes" in the ISA, where the bit pattern is left undefined. Considering the Z80 and the 6502, many people have mapped out what these undocumented instructions actually do. ...
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4 votes
2 answers
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Is there any documentation for programming Microsoft Windows Sound System sound cards?

I'm programming my own sound mixing engine and drivers for MS-DOS, but I can't find any documentation for programming for Microsoft Windows Sound System interface sound cards. Was there any ...
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13 votes
0 answers
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What is the protocol for bootstrapping a Game Boy Advance over a link cable?

One of my favorite features of the Game Boy Advance growing up was the ability for some games to be played multiplayer with just one cartridge - the first player would have the cartridge and all the ...
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9 votes
1 answer
247 views

Documentation for the MIT PDP-1X OS

The PDP-1x is a Digital Equipment Corporation PDP-1 computer modified to support both ones and twos complement arithmetic, and to include a memory management unit. It ran a locally developed ...
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6 votes
2 answers
532 views

Where is the literature for Windows 3.1 Batch mode setup?

For the purpose of debugging why the first start of Windows 3.1 after the installation crashes DOSBox, I was looking for a way to automate the installation process. Surprisingly, there is one, the /H ...
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10 votes
5 answers
762 views

Where are the authoritative specs for legacy PC/AT devices still in use in today's PCs?

For example, the 8250/16550 chip used to handle serial communication is still simulated by modern chipsets and is enumerated by ACPI as PNP0500/PNP0501. You can find datasheets for these chips. ...
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  • 203
23 votes
3 answers
3k views

Documentation for the ZX Spectrum ULA

I am writing a Spectrum emulator, however I am finding it difficult to find official or reliable information about the ULA, its functioning and its pins. Are there official sources documenting its ...
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