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1. Charlie Balogh (chainq@mastodon.social)'s status on Monday, 27-Feb-2023 01:10:57 UTC Charlie Balogh

   My actual boxed copy of OS3.1. Released by Village Tronic around/right after Commodore's demise. This is for the A4000 only though, so the A600 ROM I burned earlier is technically still pirated. Please address your cease and desist letters to NIL:. #noregrets #amiga

   • Bernie (codewiz@mstdn.io)'s status on Monday, 27-Feb-2023 01:19:33 UTC Bernie

     in reply to

     @chainq I also spotted a set of #Amiga ROM Kernel Reference Manuals.

     They were incredibly well written and beautifully typeset. Could you post a few diagrams from the Graphics and Intuition sections?

     I remember one in which they used the fingers of two stylized hands to illustrate the relative priority of sprite groups versus bitplanes in dual-playfield mode.

     #retrocomputing #amigaos

   • Bernie (codewiz@mstdn.io)'s status on Monday, 27-Feb-2023 01:24:36 UTC Bernie

     in reply to

     Found a copy online, it was in the Hardware Reference Manual:
     http://www.theflatnet.de/pub/cbm/amiga/AmigaDevDocs/hard_7.html

     «Five possible positions can be chosen for each of the two "playfield fingers." For example, you can place playfield 1 on top of sprites 0 and 1 (0), between sprites 0 and 1 and sprites 2 and 3 (1), between sprites 2 and 3 and sprites 4 and 5 (2), between sprites 4 and 5 and sprites 6 and 7 (3), or beneath sprites 6 and 7 (4). You have the same possibilities for playfield 2.»

     @chainq #amiga #retrocomputing