h6. [[PCI]] h6(. » [[PCI SWI Calls|SWI Calls]] h6((. » PCI_FindByClass h2. PCI_FindByClass h5. (SWI &5038F) |_<^{width:4em}. Entry | | |<^. R0 |<^. Class code (24 bit)| |<^. R1 |<^. Mask - matches if (function_class AND R1) = R0 | |<^. R3 |<^. 0 to start, or R3 value last found | |_<^{width:4em}. Exit | | |<^. R0 |<^. Preserved ?| |<^. R1 |<^. Preserved ?| |<^. R3 |<^. [[Using PCI Devices|Function handle]] | h4. Use The purpose of this call is to find the function handle based on the class passed. h4. Notes Only the bits in R1 of the class code will be checked so a mask of -1 will search for an exact match.