MSP430 Launchpad Blink LED. Explain to me how these lines of code work in detail, why were those specific logic operators and hexadecimal numbers chosen?

.We'll go over the code to see how it's making the LED blink | #include // header for MSP430 G2553 chip unsigned int i -0; II counter as a global variable void main(void) \ WDTCTL WDTPW + WDTHOLD; I/ stop the watchdog timer PIDIR 0x41; // set the direction register for LED1 and LED2 PIOUT & 0xBE; // initialize LED 1 and LED2 to off for (;;){ //empty for loop is an infinite loop PIOUT0x01 invert the state of LED1 for(1-0;