*(unsigned int*)0x40010C00 =((1)<<(4*0))

This line of code is setting a specific bit in a register at memory address 0x40010C00.

The expression `((1)<<(4*0))` shifts the value 1 by 0 bits, which effectively leaves the value unchanged (since any number shifted by 0 bits is still the same number). The result is simply 1.

The outer parentheses are not strictly necessary, but they help clarify the order of operations.

The entire expression is then cast to an `unsigned int*`, which is a pointer to an unsigned integer. This pointer is then dereferenced and assigned the value of 1, effectively setting a specific bit in the register to 1.

The exact meaning of this operation depends on the specific hardware and register being accessed.