Broadcom Open-sourced its drivers for its Videocore IV GPU This February, The Raspberry Pi Foundation held a competition to release a full documentation of the VideoCore IV core and a complete source release of the graphics stack for the BCM21553. This was won by Simon Hall !!
The Following is the implementation of Simon's source on the Quake 3. Please note the fps is not important, what is important that the demo is completed within 2 min. In this case it is successfully completed under 1min 20sec.