Hi all, I just want to ask why I cannot use this in C51:
... sbit INPUT1 = P0 ^ 0; sbit INPUT2 = P0 ^ 1; #define CHECK_INPUT ((INPUT1 << 7) | (INPUT2 << 6))
When try using it:
while(1) { ... unsigned char temp; temp = CHECK_INPUT; ... }
When compiled, the error: *** ERROR C193 IN LINE 40 OF xxx.c: '<<' : bad operand type
What should be the best thing to do? And why the error occur?
regards gee