Saturn Ultimate Mod Upgraded
I've just had this pointed out to me, and I really like the look of it. It's Seb's Switchless Mod, combined with a MultiBIOS so you get the Japanese startup screen when selecting Japanese region. It's a very nice touch, but quite hard work by the looks of it.
Just in case that video ever vanishes, I've taken a copy of the description which includes the info:
If your dual LED doesn't change much between orange and red, use a 180ohm
resistor on the red side of the LED and a 680ohm on the green side.
The modchip can be found here:http://www.robwebb1.plus.com/saturn/saturnhard.htm
Here is a batchfile I made to compile the saturn bioses (make sure your bios
files are named USA.BIN and JAP.BIN respectively):http://www.sendspace.com/file/n6wzl5
If you would rather use the windows command line, here's what you need to type:
copy /b USA.bin+JAP.BIN DUALSAT.BIN
When you get the output (dualsat.bin) load it in your EPROM burning software and
perform a byte swap (don't forget this!) before burning to a 27C800 EPROM.
The pinout on the Saturn BIOS chip is the same as the 27C800, but the top two
pins in the original BIOS are not used. Instead, you will want to leave pin 42
of the 27C800 disconnected and connect pin 1 to pin 10 of the PIC chip from
Seb's mod (or if you get the jap bios for english games and vice versa, use pin
9 instead.) So connect pin 2 on the 27C800 to pin 1 on the motherboard, pin 3 to
pin 2 etc.
Here is the pinout of the 27C800 EPROM if you need it:http://nintendoallstars.w.interia.pl/romlab/m27c800.gif
