I am debugging and looking at code generated by the C compiler (for a Silabs 8051F312) and I am seeing it go to the middle of code in breaking from a case statement. Of course its infuriating ... so I suspected that it was the code optimizer but no, it really completely subverted my logic. Where do I do to follow its bad logic and pinpoint the problem. The .lst doesn't help since its shows the code all nested fine. I was thinking the line files are screwed up but recompiling it gets the same results. The assembly code, clearly shows the jump into the middle of code shown in the line files. HELP??? :)Rik