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Hi Sivamit,
When we define a variable as register, the compiler arranges for the variables to be stored in microcontroller registers rather than allocating storage on a stack (as with variables declared auto). This makes accessing their values very quick, usually much quicker than if the variables were on a stack.
But the compiler may decide not to store the variables in microcontroller registers.
Hi Vhn,
Thanks for your reply.
But do we have separate data memory ( to store auto or static variables) other than CPU registers to store variables in a MICROCONTROLLER.
Sorry I know only assembly language programming for uCs. I never used register or auto definitions in my program.
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