uchar save,read /*定义局部变量*/ clock=1 /*读bit7*/ read=P2 read=read<<1 clock=0 -uchar save,read /*定义局部变量*/ clock=1 /*读bit7*/ read=P2 read=read<<1 cloc

Processor technology addresses power management through efficient design and clock adjustment services • An efficient compiler can reduce size and execution time, both helpful in reducing power consumption • An RTOS can exploit ad