Post by oompa loompa on Jun 15, 2004 13:20:20 GMT -5
a sega genesis is like any other computer. with any other computer, you can use memory to put in your own code and control it. this is what i did, i added a whole lot of memory, and a couple of peripherals, and coded some operating system, and boom, i got myself a computer. stretch those steps out to a couple of months though =)
Post by Hashmire420 on Jun 22, 2005 9:49:42 GMT -5
ok ive been working on a linux os for the genesis based off of the linux/m68k project and so far ive got nearly nothing so if you would be willing to share any of the schematics and/or the os i would be extremly grateful
Post by Hashmire420 on Jun 22, 2005 15:00:19 GMT -5
ok thats cool but could you point me to some good turentrials (spelling) on compiling source to genesis format cause ive tried a million diffrent ways to compile the linux and then burn it to a cd with many diffrent sega cd hombrew apps and so far nothing
Post by oompa loompa on Jun 23, 2005 20:32:58 GMT -5
there are many c compilers out there that are packed up and ready to go for compiling simple genesis programs. try looking up xgcc or sozobon genesis compilers. i have my own way of compiling c on the genesis, and it could work for anyone else. just use gnu compiler, get a crt0.s, build a link script, and compile for 68k stuff
Post by Hashmire420 on Jun 23, 2005 23:55:48 GMT -5
i quit the linux idea cuase its way to hard for a adhd person like me but now i want to get the rom off of the magistr drive computer thingys my whole family but me speaks russian so just a few phone calls and i could translate most of it
Post by Hashmire420 on Jun 27, 2005 22:44:48 GMT -5
ok i meant add (attention deficit disorder) its where i cant keep my mind on one thing for very long but i want to buy one of the magistr drives you know the russian fake genesis's so that i can check out the os on it but i think im gonna end up writing my own asm command line based os and see if i can write a driver for one of your ide to something schmatics cuase it would just be kinda cool to use a hard drive on one of these
heh, we know what ADHD is. (attention deficit hyperactivity disorder) basically you have an endless amount of energy and no output for it.
i dont know how good healthcare is over there in russia after the collapse of the soviet union, but i would find somewhere where you can get some perscription rittalin or prozac.
the Mega Drive is not a Sega Genesis fake, its just the european / japanese version. the difference between the two are that the Mega Drive can read 24 MBit roms, while the genesis can only read 16 MBit roms. also the output of the Mega Drive is PAL unless its in japan, and they have some wierd NTSC version of it.
thats why you have all of that redundant data in sonic2, the american version is just a stripped down version of the japanese game (hidden palace zone was removed) same with sonic3, and sonic CD. there are a ton of extra levels in the japanese version of sonic CD.
hence the extra redundant sound tracks on the sonic series of games. i have no earthly idea why they made the genesis have a 16 MBit rom cap, i think its just stupid.
Actually, both of them have a 32MBit address space. The japanese version of Sonic 2 was identical to the american one, except Tails was called Miles. Hidden Pallace Zone was never released with Sonic 2, except as a prototype. Moreover, even IF there was a 16MBit limitation on the cartridge port, it wouldn't affect Sonic CD, for obvious reasons.
if you take a look at the japanese version of Sonic CD, you can see that there are indeed many, many extra levels. you just have to go digging for them, because most of them are secrets.
i have never personally unlocked a title screen option on the japanese version called "little planet" and some garden, but if you beat time attack mode within some amount of time and get all of the time stones, it will unlock both of them. also to note that they are not on the american version
Hidden Palace existed in the beta, but if i remember right, it goes a couple of inches and drops off. i played a japanese version of sonic2, and there was a secret code that allowed you to play the entire level. it might have been an aftermarket hack though, but who cares it was still awesome.