Inline assembly! asm { ;you assembly code goes here. } My version is so out of date, tho, it may already support it and I don't even know.
Can you say that this 2 ways always produce the same .OBJ: 1) .C --> .OBJ 2) .C --> .SRC --> .OBJ in case of no using any #pragma asm/endasm ? Method (2) means that you have to call both C51.exe and A51.exe separately, so you'd have to ensure that all your command-line options matched precisely Also, I'm not sure whether C51 disables all optimisation when generating .SRC? (this could make sense, given Jon's earlier comments about "tweakability")
Can you say that this 2 ways always produce the same .OBJ: 1) .C --> .OBJ 2) .C --> .SRC --> .OBJ in case of no using any #pragma asm/endasm ?