For efficiency,i have to use inline assembly in my code, but I failed to access local variables My code is something like this:
void func(void) { unsigned int i; i=0; #pragma asm MOV A,i #pragma endasm }
but i get a error : error A45: UNDEFINED SYMBOL (PASS-2)
So i there and way to solve this problem
will generate code like this Two remarks to that: 1) Not when I try that here it doesn't. 2) You've been told already that "like this" doesn't cut it. Either that is the actual code, or you're essentially blowing smoke.
the redundant two instructions And have you made absolutely, positively sure that those are actually redundant? Do you understand not just these six machine instructions, but also the entire surrounding code well enough that you can make sure that all of it would still work the same way without these instructions?
And have you made absolutely, positively sure that those are actually redundant?
MOV R7,A MOV A,R7
Well it shouldn't take a programmer with much experience to see that 50% of the sequence is redundant, regardless of surrounding code.