Why do red and green LEDs flash simultaneously?

gistfile1.c

#include <msp430x20x2.h>

#define TICK_HZ         238626
#define RED_LED         BIT0
#define GREEN_LED       BIT6

void Delay (long ticks);

int main() {
    WDTCTL = WDTPW + WDTHOLD;       // Stop watchdog ticksr

    P1OUT = 0;
    P1DIR = ( RED_LED | GREEN_LED );

    while (1) {
        Delay (TICK_HZ);
        P1OUT ^= RED_LED;
        Delay (TICK_HZ);
        P1OUT ^= GREEN_LED;
    }
    return 0;
}

void Delay (long ticks){
    while (ticks)
        ticks--;
}