Emuforums.com - View Single Post

**NHervé** · May 4th, 2008

I was reading the earlier posts...
When I talked about the RRR2 bug in the 3D core, Shash said it was not the 3D core. It was the 3D core, because the game sends the 3D commands in big-endian (ie : 0x1B000000 instead of 0x0000001B). The 3D core was designed for standard commands (0x0000001B), because of the NOPs being before the cmd, the 3D core was not shifting the command container and missing the command. After that it was interpreting the params as commands and was being completely messed up. Stupid bug, but not so simple to find.

May 4th, 2008	#285 (permalink)
NHervé Plugin author Join Date: Jul 2007 Location: Nulle part Posts: 519	I was reading the earlier posts... When I talked about the RRR2 bug in the 3D core, Shash said it was not the 3D core. It was the 3D core, because the game sends the 3D commands in big-endian (ie : 0x1B000000 instead of 0x0000001B). The 3D core was designed for standard commands (0x0000001B), because of the NOPs being before the cmd, the 3D core was not shifting the command container and missing the command. After that it was interpreting the params as commands and was being completely messed up. Stupid bug, but not so simple to find. __________________ No pity for n00bs here !