[OMAP3503] Problem with global declaration in emulator

sureshkumar said:

when i declare the global variables in simulator its automatically initialized to zero(default).but i worked in emulator for the same code it is initialized to some garbage  values,for this i am doing memset(),so cpu cycles are wasting here.

  can you please tell me the reason and any alternatives  or i want to do any compiler settings?

When you are working with the emulator and a real target board, this is different than a simulation environment.  On real target hardware, things like DRAM or SRAM do not initialize to any specific value.  This is why you see garbage data values.

Regardless, the C compiler/linker implements functionality like the C run-time environment initialization routines, or explicit calls to memset, both require CPU cycles to initialize memory.