Hi Darrenmac,
Microcode Studio defaults to using the PM assembler, to use MPASM you have to tell it to, here is how: 1.start micro code studio 2. click on the word VIEW at the very top left. 3. Click on Compile and Program Options, and it will open a box which has at it's top, 3 tabs, notice on the first tab an empty box which says use PBL, but do not put a check there, click the center tab marked assembler. You will see an empty box marked: USE MPASM. Put a check mark there and close the box. You are now using MPASM as the assembler.
JS