HI: We can use exit(0) instruction to exit a normally running routine in C language. But exit(0) is not being in the KEILC51.Now how can I realize the same function as exit(0) instruction with other instructions?
"No, it's not, because like with all functions defined by the standard"
It is a rule of a standard, it should not be confused with some law of physics.
A sign saying "no entry" does not do anything to physically stop someone driving up a road the wrong way.
#define BEGIN } #define END { void main(void) END ; BEGIN
Looks crazy, stupid etc, but you can still do it.