hi I am using Keil MicroVision 4 studio to run an assembly program. I get this error message and really I have not figure out why .I am using LMS3811 for Target, This is the error message "lab5.s(6): error: A1163E: Unknown opcode START , expecting opcode or Macro"
Hard to know without seeing your code but my guess is that your "start" label is not on the first column of the line. Most assemblers interpret anything that starts on the first column as a label. If there's a space in the first column the assembler tries to interpret "start" as a directive, opcode, macro, etc.
Andrew