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Traace

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    PowerMac OpenRCT2 possible?

    in General Discussion

    Posted · Edited by Traace

    3 hours ago, Gymnasiast said:

    PowerPC is big-endian, while x86 is little-endian. It's a somewhat technical story, but it boils down to how numbers are saved internally. Since OpenRCT2 does a lot of stuff like "get the bit at position 9 of this number" or "get the upper 8 bits of that number" this would not work properly on the PowerPC. All of these calls would have to be modified to also work on PowerPC.

    Okay we need byte-swapping.

    Osx has a utility for that https://developer.apple.com/documentation/corefoundation/byte_order_utilities#overview

    3 hours ago, Gymnasiast said:

    Since the newest mainstream PowerPC systems are from 2006, and because we don't even support macOS versions that old (the minimum is 10.9 Mavericks IIRC)*, I wouldn't expect support for it, though if someone were to step up to do so, we would still welcome it.

    * I know that Linux PPC exists, but it's quite a niche within a niche.

    Talos II is production since early 2018. It supports PCIe 4.0 and has a open source bios , Not even X86 Mainboards supports PCIe 4.0 currently.

    However that boy can handle .BIG and .little anyway

    https://www.raptorcs.com/TALOSII/prerelease.php

     

    Why openRCT2 doesn't support anything below 10.9 ?

     

    PowerMac OpenRCT2 possible?

    in General Discussion

    Posted · Edited by Traace

    Hi, thanks, i really enjoy openRCT2.

    Can it run on PowerMac's? Apple used this CPUs until 2006. G4 and G5 should have enough performance to handle this awesome game.

    Unfortunately there are no compiling instructions for osx on the wiki yet, nor the download page says if its Intel CPU only,

    Dont get me wrong, I also own some X86, but getting openRCT2 on a older Mac (all before 2006) would be just amazing.

     

    Thats the basics (Mac OSX):

    Xcode Version: 3.1.4 | make, cmake ....

    SDL2: Yes - 2.0.3 Hybrid files @ 2.0.1 Core (latest possible to compile for PPC osx) | Already getting used in sdlMAME for PPC.

     

    Something else needed? Maybe macports can help, i can take a look

     

    Linux ppc may even offer more up to date libs.

     

     

    :)

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