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Final Burn Neo => FBN Development => Topic started by: lantus on April 07, 2010, 01:33:06 PM

Title: Endian Issues?
Post by: lantus on April 07, 2010, 01:33:06 PM
Gents,

Myself and Kev ported FBA over to the Xbox 1 console many years ago. History apparently repeats itself as im messing around once again with the code, this time though, on the 360 

Anyways, I have things compiled and up and running quickly and all looks promising, however i think the code itself is not big endian "friendly". At least the 68k emulation. I can get other roms (ie Galaxian driver, double dragon etc) running just fine but anything 68k related just sits there with a black screen.

my next step was to compare output from a win32 build to what i currently have and go from there but i wanted to ask you guys if there is anything obvious that needs to be made big endian aware. Im assuming the read/write word/long calls to memory are the main culprit, but i thought i was ask first.

any advice/help would be great!

thanks for your time
Title: Re: Endian Issues?
Post by: iq_132 on April 08, 2010, 04:56:20 PM
Quote from: lantus on April 07, 2010, 01:33:06 PM
Gents,

Myself and Kev ported FBA over to the Xbox 1 console many years ago. History apparently repeats itself as im messing around once again with the code, this time though, on the 360 

Anyways, I have things compiled and up and running quickly and all looks promising, however i think the code itself is not big endian "friendly". At least the 68k emulation. I can get other roms (ie Galaxian driver, double dragon etc) running just fine but anything 68k related just sits there with a black screen.

my next step was to compare output from a win32 build to what i currently have and go from there but i wanted to ask you guys if there is anything obvious that needs to be made big endian aware. Im assuming the read/write word/long calls to memory are the main culprit, but i thought i was ask first.
Definitely. The byte order of the long & word will definitely have to be swapped.  Other than that you got me lol.  Anyway, welcome Lantus. :) I was a huge fan of your work on the xbox.
Title: Re: Endian Issues?
Post by: kev on April 09, 2010, 03:26:55 PM
Lol, I should check back here more often :)

I too have been working on this . . i'll see if I can get you on IRC (look for me as kev2)