JOTD has certainly earned a positive reputation in the Amiga scene, as he is one of the few developers willing to go the extra mile, to convert/port over some pretty fine Arcade to Amiga titles. Moon Patrol, Donkey Kong, Super Bagman, Galaxian500 and Super Xevious are just some of the ones as the highlight on this website. Well it doesn’t look anything is going to stop this powerhouse of a developer from creating Arcade to Amiga conversions any time soon. As he has recently announced he is now working on Konami’s brilliant shooter of ‘GYRUSS’. A game that JOTD says is hopefully going to get it working nicely on the Amiga 500 and above.
And while there’s very little to talk about just yet, here’s what JOTD says about the project, which is still in a very early stage of development ( no sound in video ). “This is pretty complex to port as the arcade machine uses 2 processors and no source is available”.
– the Z80 is used as main cpu do to most things BUT…- the m6809 is used to project/fix/recompute the coordinates, which is that is providing the circular effect in Gyruss. Without it, the sprite placement is completely off. This 6809 to 68000 conversion is also the first one done with my 6809to68000 converter. Fortunately the code is small. Don’t ask me how the coordinate conversion works. I suppose they’re using stuff like cosine/sine tables in ROM, and there’s some multiplying involved too. Not sure about the FPS on a real machine, will probably need 25 FPS only but that’s cool.
And that’s all there is to say so far, but watch this space for more!
