Hi, I uploaded a new lmtx ... not much done due to the heat (entered reading mode instead) but ... apart from some work in progress ... we now have some basic bitwise operations (maybe we need some more). So far we have: \startlines \meaning\bitwiseset \meaning\bitwisenot \meaning\bitwisenil \meaning\bitwiseand \meaning\bitwiseor \meaning\bitwisexor \meaning\ifbitwiseand \stoplines used as: \scratchcounter = \bitwiseand "01 "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseand "01 with "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseand "03 "02 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwiseor "01 "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseor "01 with "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseor "03 "02 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwisexor "01 "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwisexor "01 with "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwisexor "03 "02 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwisenil \bitwisenil "0F "02 "01 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwisenil \bitwisenil "0F with "02 with "01 \uchexnumbers{\scratchcounter} \par \scratchcounterone\zerocount \scratchcounterone \bitwiseset "FFFFFFF \ifbitwiseand \scratchcounterone "8000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "F000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "1000000 YES \else NOP \fi \scratchcounterone \bitwisenot \scratchcounterone \ifbitwiseand \scratchcounterone "8000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "F000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "1000000 YES \else NOP \fi \scratchcounter \bitwiseand "01 "02 \scratchcounter \numexpr "01+"02\relax \ifcase \bitwiseand \scratchcounterone \plusone \else \fi \ifbitwiseand \scratchcounterone \plusone \else \fi \ifnum \scratchcounterone=\plusone \else \fi A while ago I played with bitwise operator sin \numexpr but in the end removed that because it's messy with the symbols to be used, but I will look at that agaon if needed. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------