Useful links

Here's a collection of links that I've found useful or interesting when working on this project.

General
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• Ian Bell's Elite site - The most important source for 8-bit Elite fans, quite literally, as without the original source discs released here, none of this would be possible; thank you for the wonderful gift, Ian!
• Ian Bell's handwritten dev docs - Fascinating relics from the actual development process of Elite
• Frontier Astro - If, like me, you don't own all the physical Elite versions but would love to, this is a wonderful resource
• Elite wiki classic articles - The Elite wiki gave me a head start on a number of topics and is a highly recommended read
• The alt.fan.elite FAQ - I've read this FAQ many times over the years, and although it contains a few errors, it's still a great read from the Usenet era
• Elite-A - Angus Duggan's Elite-A page, where you can find instructions and download links for his extended version of Elite

BBC Micro information and tools
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• BBC ASCII character set - I can't tell you how many times I've had to refer to this table when disassembling Elite; I probably should have just printed it out!
• BBC MOS disassembly - I found this particularly useful when trying to decipher keyboard translation tables and undocumented OS calls
• BBC memory map - When every single byte counts, as it does in Elite, a map is an essential part of the toolkit
• Hex and binary converter - Probably the web tool I used the most during this project, especially when converting numbers into binary
• The 76489 sound chip - I'm not sure I fully understand the sound chip in the Beeb, but this article really helps explain things
• Teletext page editor - A really useful tool for designing BBC Micro teletext screens, which I used to create the dashboard in Teletext Elite

Emulators
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• b2 - A Beeb emulator with brilliant debugging capabilites that happily works on the Mac, and which is now my go-to emulator for complex disassembly projects like this
• JSBeeb (BBC Micro) - An absolute tour-de-force from Matt Godbolt, this browser-based emulator is brilliant for testing Elite builds in all the variations of the BBC Micro and Master
• Using the JSBeeb debugger - A very useful tool when trying to work out what all those zero-page locations actually do
• BeebEm - An oldie but a goldie, and particularly useful for screenshots
• beebjit - The best BBC emulator for playing with disc protection on the original discs
• B-em - You can never have too many BBC Micro emulators, right?

Assemblers and disassemblers
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• BeebAsm - The wonderful 6502 assembler that powers the versions that are documented on this site
• BeebDis - I found this super-useful for disassembling the disc, Master and Electron versions, for which the source discs are lost in time
• A BeebDis thread on Stardot - Some handy information for users of BeebDis

6502 Second Processor
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• 6502 Second Processor programming - A brilliant article about how the Tube works from the incomparable Tom Seddon
• Acorn's Tube application notes (PDF) - The best source of official Tube information, crammed full of details about the 6502 Second Processor
• The 6502 Second Processor boxed version - Rare as hen's teeth and very kindly archived by the owner, what a prize!
• Getting the 6502 Second Processor sources to compile - If you want to build 6502SP Elite from the original discs, you'll need to read this first

Universe in a bottle
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• Market prices in Acornsoft Elite - A really interesting blog post about trade prices in Elite
• Random number generator - A great article on the Elite wiki about the generation and use of the galaxy and system seeds
• Random number generation - This doesn't describe the algorithm in Elite, but it's still a great introduction to the topic
• Matt Godbolt on text tokens - I wish I'd read this before tackling the text token system, as it's a great read

Ships and 3D graphics
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• Classic Elite ships wireframe - A detailed introduction to ship data blocks and what all those bytes actually mean
• Yaw and pitch matrices - The heart of Elite's rotation mechanism, explained in matrix format
• Ian Bell’s scribbled yaw/pitch calculations - The original matrix calculations from the handwritten cache of dev documents
• The small angle approximation - This hack is absolutely fundamental to squeezing the above maths into 8 bits

Other Elite disassemblies
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• Elite for BeebAsm - Kieran Connell's original BeebAsm port, without which this project would never have cleared the first hurdle
• Original Stardot thread about Elite for BeebAsm - This is the thread I stumbled across during lockdown that started the whole thing
• Apple Elite disassembly - Brilliant work from Andy McFadden on the Apple II version, particularly in his analysis of the ship-drawing code
• Elite Harmless - A knockout project from Kroc Camen that's taking the C64 version and making it even better
• Elite: The New Kind source - For those of us disassembling Elite, Christian Pinder is a complete legend, and this is the reason why

6502 assembly code
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• Online 6502 disassembler - A super-handy web-based disassembler that takes hex bytes and returns 6502 assembly code
• 6502 optimisations - Not all of these optimisations are used in Elite, but quite a few of them are
• Compare and branch logic - If, like me, you can never remember whether it should be a BCC or a BCS after a CMP, this will put you straight
• Multiply and divide in 6502 - A really good explanation of the kind of bit manipulation that Elite implements in its maths routines
• BIT hopping with EQUB &2C - An interesting thread on a technique that Elite uses quite a lot

Commodore 64
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• Elite harmless - An epic disassembly of Commodore 64 Elite, with improvements; a very useful companion for exploring the Commodore 64 version
• Commodore 64 memory map - Essential information for anyone working with the Commodore 64 at machine level
• The 6510 processor port - An excellent explanation of the different memory configuations on the Commodore 64
• C64 Kernal API - The ultimate reference for the Commodore 64's kernal calls

The history of Elite
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• David Braben video interview - A fascinating romp through the development of Elite with one of the authors
• Right on Commander! - Probably my favourite article about the history of Elite, originally from Retro Gamer
• Elite (or, The Universe on 32K Per Day) - The Digital Antiquarian's excellent and very detailed article about the history of Elite
• Masters of their universe - A great article in The Guardian containing the bulk of the Elite section from Backroom Boys
• Elite on Wikipedia - A handy summary of what happened and when
• Q&A: David Braben - from Elite to today - Another David Braben interview
• Rob Northen interview - A chat with the man behind the copy protection used in the original Elite
• The Platform and the Player: exploring the (hi)stories of Elite - An interesting academic paper about Elite
• The History of Elite: Space, the Endless Frontier - A cracking read, full of detail about how Elite fits into gaming history
• The Life of Pi - There's some intesting stuff about Elite in this interview with David Braben about the Raspberry Pi