For what it may be worth, one of the tools in my own PDP-11 suite (which I have placed in the public domain) is a disassembler. It'd also be pretty easy to add a PDP11 module to my full-featured interactive disassembler, though I haven't done so. (The disassembler in the PDP-11 package is not an interactive one.) ftp.rodents.montreal.qc.ca:/mouse/ has subdirectories pdp11 and disas that contain, respectively, my PDP-11 stuff and my disassembler. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse(a)rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B