Martin, I started MPLAB then selected HELP then MPASM HELP. From their I chose 16C5X Instruction set. I then selected EDIT COPY and placed the instructions into the clipboard then pasted in into the windows notepad and saved it as a text file. I did 16Cxx and 27C42 also and attached all three files. I hope these help. - -Mark WB1GHL >>> Martin McCormick 8 October 1996 3:40 pm >>> Is there any place where I can get an ASCII listing of all the PIC assembler mnemonics? Attachment converted: wonderlandfive:17C42.TXT (TEXT/CSOm) (00003EEC) Attachment converted: wonderlandfive:16CXX.TXT (TEXT/CSOm) (00003EED) Attachment converted: wonderlandfive:16C5X.TXT (TEXT/CSOm) (00003EEE)