Resident Evil - Biohazard 1.5 and 0 code and toolkits disappear? WTH...?

Seen plenty of examples and evidence a toolkit and code exists for the unmarketed Capcom game "Resident Evil" - "Biohazard" 1.5 prototype for PSX and possibly Sega Saturn. There's also "Resident Evil" - "Biohazard" 0 prototype for Nintendo 64 and possibly PSX that's been shown with better quality footage recently...

How come there's no mention of the toolkits and linked code to these games? What happened to it? How was "Resident Evil" - "Biohazard" 1.5 compiled, edited and patched to function without crashing PSX machine on more recent demos? Who's compiling these demos? There a problem sharing toolkits and code for these unmarketed games? Find it hard to believe after over a dozen years of demos no software object code or editor exists...

What machine was used for development? Indy workstations? Macintosh? Microsoft "Visual Studio" with "Windows NT"? GNU Linux?

How did "Code Veronica" get on Sega Dreamcast?

Thanks

 

Strange questions indeed.

 

example , here is part of stree fighter how they build obj file between Saturn and PS
some time they code very easy convert between different hardware.......
so bio should be like that,

 

Thanks for the tip and sample HI_Ricky. I was guessing right then because technically it's usually exact same data across P.C. and PSX if it's the same game, but getting the hardware format is the silly part.

For some westerners it's probably best to stick with Japanese communities perhaps? There isn't much support on other forums unless you already have something or are pirating... Oh well this place is at least somewhat helpful. Maybe If I contact Sega-Sammy I can get some help regarding Mars CD development.