Sorry if this is a repeat post. I got some bounce messages from the list server and I don't think my post survived. Hi: I'd like to be able to call C code from asm and vice versa. I got an asm file from PICCLite to check the calling convention and compiled it to an object file in PICCLite. I changed the .obj extension to .o for MPLINK. MPLINK reported that it was not a valid COFF format so I used one of PICCLite's tools to convert the .obj to a COFF file and MPLINK reported that it couldn't read the header. Does anyone know how to get these two development systems to play nice? I see other posts regarding PICCLite so maybe someone has played with this and can help. I'd appreciate it much. Thanks in advance, Miike -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.