SysTick

Hi guys, I am trying software timers without using interrupt

SysTick->CTRL = 0x5; 

SysTick->LOAD = 0xFFFFFF;

SysTick->VAL  = 0; 

when start the program, what will happen with SysTick->VAL  = 0; 
it is value start with 0xFFFFFF or 0.

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