well, i hope that there are some people out there which did not know this <bg>. so i was able to help them, plus i don't feel too alone. :-)

maybe i'll ask you next time directly - nee, then i'll loose the feeling of success <s>

>Sure is old hat to me. I had to do a bunch of bit-twiddling in a previous life. ;) Had to write a keyboard driver for a Z-80 system with NO ram. Only had the 208 bits of writable memory in the registers to work with and a 2K ROM for the code.