Dionoid Posted October 23, 2021 Share Posted October 23, 2021 (edited) A few weeks ago I noticed that http://www.obelisk.me.uk/6502 was (and still is!) unreachable. I used to visit this website frequently when coding for the Atari 2600, because it contained a well formatted reference for all the 6502 assembly instructions, showing their opcode values, affected status flags, number of bytes and number of cycles. I was sad to find out that the owner/author of obelisk.me.uk (Andrew Jacobs aka BitWise) passed away earlier this year because of complications from COVID-19. As I don't expect his website to come back online anymore, and because using the Wayback Machine is too slow, I decided to create a little booklet using the information from this website. This booklet can be bought for less than $4 from Lulu: https://www.lulu.com/en/us/shop/andrew-jacobs/6502-instruction-set-guide/paperback/product-zvq87w.html Note that I don't get a single penny from this: you only pay for Lulu's printing- and shipping costs. Here is the PDF in case you need it: 6502 instruction set guide.pdf You might also like these other books on Lulu: Stella Programmer's Guide Atari 2600 Programming for Newbies Edited November 4, 2021 by Dionoid 4 5 Quote Link to comment Share on other sites More sharing options...
debugger Posted November 3, 2021 Share Posted November 3, 2021 This is sad. I went to his site from time to time. Just writing to let you know I purchased one book. Thank you very much. 1 Quote Link to comment Share on other sites More sharing options...
debugger Posted November 3, 2021 Share Posted November 3, 2021 One of each three, to be more precise... Quote Link to comment Share on other sites More sharing options...
stepho Posted November 4, 2021 Share Posted November 4, 2021 Thanks for your work. Can we download it as a PDF file? 1 Quote Link to comment Share on other sites More sharing options...
debugger Posted November 4, 2021 Share Posted November 4, 2021 That would also be nice. Quote Link to comment Share on other sites More sharing options...
+Karl G Posted November 4, 2021 Share Posted November 4, 2021 I will be ordering this myself. That site was one of two that I access frequently for reference. Sad to hear about the owner's demise. 1 Quote Link to comment Share on other sites More sharing options...
Dionoid Posted November 4, 2021 Author Share Posted November 4, 2021 16 hours ago, stepho said: Thanks for your work. Can we download it as a PDF file? Of course; I just attached the PDF to the original post. Quote Link to comment Share on other sites More sharing options...
KevKelley Posted November 4, 2021 Share Posted November 4, 2021 I just got mine in the mail. Hope to one day understand it all. I am sorry for the loss. 1 Quote Link to comment Share on other sites More sharing options...
tabar Posted November 4, 2021 Share Posted November 4, 2021 ordered and just got it. 1 Quote Link to comment Share on other sites More sharing options...
stepho Posted November 5, 2021 Share Posted November 5, 2021 7 hours ago, Dionoid said: Of course; I just attached the PDF to the original post. Much appreciated. It's clear, concise and comprehensive - an excellent example of good documentation. 1 Quote Link to comment Share on other sites More sharing options...
grafixbmp Posted November 17, 2021 Share Posted November 17, 2021 Got mine. 1 Quote Link to comment Share on other sites More sharing options...
+Karl G Posted November 18, 2021 Share Posted November 18, 2021 I got mine, too! Thanks for making it available 1 Quote Link to comment Share on other sites More sharing options...
Dionoid Posted January 4, 2022 Author Share Posted January 4, 2022 (edited) New coil-bound version of the 6502 Instruction Set Guide on Lulu.com is now available. The coil makes it much easier to have it open on your desk as a reference. Edited January 6, 2022 by Dionoid Quote Link to comment Share on other sites More sharing options...
debugger Posted January 4, 2022 Share Posted January 4, 2022 Hah, got mine already but I have to say it looks simply gorgeous in that way. I may order it too. Quote Link to comment Share on other sites More sharing options...
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