170w ago - Update: Some pictures and a video (below) are now available of the NullDC Dreamcast emulator running on PS3 for those interested!
A few days ago we reported news that drk||Raziel is working on porting the Sega DreamCast emulator NullDC to Sony's PS3, and today he reports that the BiOS is operational and running!
Speaking to PSGroove, drk||Raziel states, to quote: "Letsee .. oh wait, it cross compiled ! *yay* for uber portable code ;p Interpreter only / underclock 4x / no pvr rendering / no audio / no input. Bios intro runs fine, then gets on the clock dialog screen. YAY !"
Currently it is produced on a PS3 Debug unit due to its remote debugging, but the code will run on Retail PS3 consoles as well. Below is the log file for those curious, cool news indeed!
256w ago - Here is a translation of an ongoing project from Spanish developer DemonHades (linked above) courtesy of idone, detailing the PS3 BiOS chip being pulled and starting to be traced as follows:
For some time, we have been talking about the PlayStation 3 BiOS, and up to date there is no public info about the IC which does this job and the way it stores the information.
Here is a quick briefing of what we have done so far (pictures in sequence with the below text, spread across the three images below):
Pic #1: The reference of this IC is CXR713120-202GB.
Pics #2 & #3: Thanks to KnightSolidus we have these photos with the ways of this IC and some notes of connections references with colors.
Pic #4: The PLAYSTATION 3 BIOS is also known as SYSTEM CONTROLLER (SysCon)
Pic #5: As we can see in the image, SYSTEM CONTROLLER uses an SPI interface to communicate with the CELL eeprom, on which possibly it will know how to behave. We think it *might* be something interesting to work with.
Pic #6: Using this SPI interface, we can try to cause a livelock that would get us the checkstop.
Pic #7: Here we can see the CXR SYSTEM CONTROLLER, internal diagram. We believe that the UART port...