The driver for the MATRIX graphic card install some XBIOS funktions.
MatGraph - Cxx
cxx_info.tos
Unkonw = 0x7D00 = 32000 Unkonw = 0x7D01 = 32001 CHECKinst = 0x7D02 = 32002
INSTokay = 0x43784f6b ; 'CxOk'
XBRA "M_IN"
MatGraph - TCxx
tcxxinfo.tos
CHECKinst = 31000 GETscreen = 31001 GETboard = 31002
INSTokay = 0x54634f6b ; 'TcOk'
XBRA "MTCI"