/*
** ===================================================================
** Method : Byte1_NegBit (bean ByteIO)
**
** Description :
** This method negates (invertes) the specified bit of the
** output value.
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit to invert (0 to 7)
** Returns : Nothing
** ===================================================================
*/
void Byte1_NegBit(byte BitNum)
{
byte Mask=Byte1_GetMsk(BitNum); /* Temporary variable - bit mask */
if (Mask) { /* Is bit mask correct? */
PORTB ^= Mask; /* Negate appropriate bit on port */
}
}
/*
** ===================================================================
** Method : Byte1_PutBit (bean ByteIO)
**
** Description :
** This method writes the new value to the specified bit
** of the output value.
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit (0 to 7)
** Val - New value of the bit (FALSE or TRUE)
** FALSE = "0" or "Low", TRUE = "1" or "High"
** Returns : Nothing
** ===================================================================
*/
void Byte1_PutBit(byte Bit, bool Val)
{
byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - put bit mask */
if (Val) {
setReg8Bits(PORTB, Mask); /* [bit Bit]=1 */
} else { /* !Val */
clrReg8Bits(PORTB, Mask); /* [bit Bit]=0 */
} /* !Val */
}
/*
** ===================================================================
** Method : Byte1_PutBit (bean ByteIO)
**
** Description :
** This method writes the new value to the specified bit
** of the output value.
** a) direction = Input : sets the value of the specified
** bit; this operation will be
** shown on output after the
** direction has been switched to
** output (SetDir(TRUE);)
** b) direction = Output : directly writes the value of the
** bit to the appropriate pin
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit (0 to 7)
** Val - New value of the bit (FALSE or TRUE)
** FALSE = "0" or "Low", TRUE = "1" or "High"
** Returns : Nothing
** ===================================================================
*/
void Byte1_PutBit(byte Bit, bool Val)
{
byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - put bit mask */
if (Val) {
setReg8Bits(PORTB, Mask); /* [bit Bit]=1 */
Shadow_B |= Mask; /* Set appropriate bit in shadow variable */
} else { /* !Val */
clrReg8Bits(PORTB, Mask); /* [bit Bit]=0 */
Shadow_B &= (byte)~Mask; /* Clear appropriate bit in shadow variable */
} /* !Val */
}
/*
** ===================================================================
** Method : Byte1_PutBit (bean ByteIO)
**
** Description :
** This method writes the new value to the specified bit
** of the output value.
** Parameters :
** NAME - DESCRIPTION
** Bitnum - Number of the bit (0 to 7)
** Val - New value of the bit (FALSE or TRUE)
** FALSE = "0" or "Low", TRUE = "1" or "High"
** Returns : Nothing
** ===================================================================
*/
void Byte1_PutBit(byte BitNum, byte Value)
{
byte Mask=Byte1_GetMsk(BitNum); /* Temporary variable - bit mask */
if (Mask) /* Is bit mask correct? */
if (Value) { /* Is it one to be written? */
PORTB |= Mask; /* Set appropriate bit on port */
}
else { /* Is it zero to be written? */
PORTB &= ~Mask; /* Clear appropriate bit on port */
}
}
/*
** ===================================================================
** Method : Byte1_NegBit (bean ByteIO)
**
** Description :
** This method negates (inverts) the specified bit of the
** output value.
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit to invert (0 to 7)
** Returns : Nothing
** ===================================================================
*/
void Byte1_NegBit(byte Bit)
{
byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - set bit mask */
invertReg8Bits(PORTB, Mask); /* [bit Bit]=invert */
}
/*
** ===================================================================
** Method : Byte1_ClrBit (bean ByteIO)
**
** Description :
** This method clears (sets to zero) the specified bit
** of the output value.
** [ It is the same as "PutBit(Bit,FALSE);" ]
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit to clear (0 to 7)
** Returns : Nothing
** ===================================================================
*/
void Byte1_ClrBit(byte Bit)
{
byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - set bit mask */
clrReg8Bits(PORTB, Mask); /* [bit Bit]=0 */
}
/*
** ===================================================================
** Method : Byte1_GetBit (bean ByteIO)
**
** Description :
** This method returns the specified bit of the input value.
** a) direction = Input : reads the input value from pins
** and returns the specified bit
** b) direction = Output : returns the specified bit
** of the last written value
** Note: This bean is set to work in Output direction only.
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit to read (0 to 7)
** Returns :
** --- - Value of the specified bit (FALSE or TRUE)
** FALSE = "0" or "Low", TRUE = "1" or "High"
** ===================================================================
*/
bool Byte1_GetBit(byte Bit)
{
byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - bit mask to test */
return (bool)((getReg8(PORTB) & Mask) == Mask); /* Test if specified bit of port data register is set */
}
/*
** ===================================================================
** Method : Byte1_NegBit (bean ByteIO)
**
** Description :
** This method negates (inverts) the specified bit of the
** output value.
** a) direction = Input : inverts the specified bit;
** this operation will be shown on
** output after the direction has
** been switched to output
** (SetDir(TRUE);)
** b) direction = Output : directly inverts the value
** of the appropriate pin
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit to invert (0 to 7)
** Returns : Nothing
** ===================================================================
*/
void Byte1_NegBit(byte Bit)
{
byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - set bit mask */
invertReg8Bits(PORTB, Mask); /* [bit Bit]=invert */
Shadow_B ^= Mask; /* Set appropriate bit in shadow variable */
}
/*
** ===================================================================
** Method : Byte1_ClrBit (bean ByteIO)
**
** Description :
** This method clears (sets to zero) the specified bit
** of the output value.
** [ It is the same as "PutBit(Bit,FALSE);" ]
** a) direction = Input : sets the specified bit to "0";
** this operation will be shown on
** output after the direction has
** beenswitched to output
** (SetDir(TRUE);)
** b) direction = Output : directly writes "0" to the
** appropriate pin
** Parameters :
** NAME - DESCRIPTION
** Bit - Number of the bit to clear (0 to 7)
** Returns : Nothing
** ===================================================================
*/
void Byte1_ClrBit(byte Bit)
{
byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - set bit mask */
clrReg8Bits(PORTB, Mask); /* [bit Bit]=0 */
Shadow_B &= (byte)~Mask; /* Set appropriate bit in shadow variable */
}
