Translating C to GCB

[MBB]

Does anyone know what this code does?

static const uint8_t REG_CNTRL1 = 0x00;

// Set enable bit
WriteReg(REG_CNTRL1, 0x40 );

uint8_t val;

  val = ReadReg(REG_CNTRL1);
  val &= ~0x40;
  WriteReg(REG_CNTRL1, val);

[Anobium]

Is this the I2C discovery program from MCU FRIEND ?

it calls a method called ReadReg() passing the parameter 0x00 storing result in val.
then, it ANDs val with the 1's compliment of 0x40, clearing bit 6
calls a method called WriteReg pasking two parameters.

Corrected after Jerry Messina posted. i had it totally wrong initially as I overlooked the apersand. Thank you Jerry!

[Jerry Messina]

val &= ~0x40;
That statement ANDs val with the 1's compliment of 0x40, clearing bit 6

Same as

val = val AND 0xBF

[MBB]

Thanks!