"VBR" is the "Vector Base Register". This is a special CPU register, accessed with the MOVEC command.
Are you sure you're not meant to be using "movec" instead of "move"? Some compilers convert this automatically.
Where did you get the sample code from?
The error you're getting suggests you don't have the compiler set up properly to recognise the CPU. Or maybe you're missing a header file that defines the VBR (but I doubt that).
You can search this forum for "vbr" to see if anyone else has had this problem. Searching finds the following that has the example code "movec d0,vbr" and has some other information:
