Ive looked but I can't find wrappers for the uDbg calls into the ue driver---i.e., I can't find a file akin to SA1_CoreLibs/uelib/ueng_lib.c that wraps the ioctl's responsible for the uEng library calls. Does a similar file for the uDbg calls not exist? (Im implementing an interactive debugger that's why Im asking). Austen McDonald austen@cc.gatech.edu God does not care about our mathematical difficulties. He integrates empirically. -- Albert Einstein