'CODE SPACE MEMORY OVERLAP' warnings

Question: If I use INT4 (for example: static void INT4(void) interrupt 10 ), I get a warning 5: "CODE SPACE MEMORY OVERLAP" FROM:   0053H  TO:    0055H Why?

 

Answer:

This is due to the autovector/jumptable for INT4. It appears that you have code sitting (CODE SPACE MEMORY OVERLAP) at this offset. Your code offset should start at 80h for internal builds.