hi

i am trying to access variables in C and Assembly code. could some body tell me what's wrong with this code. tempa is a variables whcih i want to access in assembly. i set the variable in assembly but back in C it i think it does not has the same value. i am using sdcc.sourceforge.net's free C compiler to compile this code. it does compile the code well but running in simulator does not shows what is being expected.



#include <reg51.h>
data unsigned char tempa;


main()
{
int a;
unsigned char zz;

while(1)
{

_asm
mov _tempa,200
_endasm;
P1 = tempa;
for(a=0;a<100;a++);


_asm
mov _tempa,0
_endasm;
P1 = tempa;
for(a=0;a<100;a++);

}


}