#Program: Pico_Python_27Register.py #########
from micropython import const
from machine import Pin, mem32
import time

#Access Direct Registers here
GPIO_IN			= const(0xD0000004)
GPIO_OUT		= const(0xD0000010)
GPIO_OUT_SET	= const(0xD0000014)
GPIO_OUT_CLR	= const(0xD0000018)
GPIO_OUT_XOR	= const(0xD000001C)

pin_SW1 = 14
pin_SW2 = 15
BIT1514 = const(0b01100000000000000)

#setup here
for LEDn in range(0, 8):
    Pin(LEDn, Pin.OUT)
SW1 = Pin(pin_SW1, Pin.IN, Pin.PULL_UP)
SW2 = Pin(pin_SW2, Pin.IN, Pin.PULL_UP)

print("Hello Students,","8-LEDs : off")

#infinite loop here
while True:
    flag_SW = BIT1514 & mem32[GPIO_IN]
    if flag_SW:
       mem32[GPIO_OUT_CLR] = 0b11111111
    else:
       mem32[GPIO_OUT_SET] = 0b11111111 
    time.sleep_ms(100)
    print("state Input =",bin(flag_SW))    
#END program here ##################