Interesting, although perhaps not as practical as if it was online (since most people who needs the hexadecimal version of an ASM program usually needs it to copy a program on their calculator when they have no link cable handy, but I guess for smaller programs this could still be handy if someone has no computer access but happens to know a lot of ASM and decides to modify a program on-calc. That's assuming, of course, that your tool generates a program with hexadecimal in it and can be recompiled on-calc with AsmComp() and by adding the AsmPrgm command above the code.