Access to named groups of bits

testReg{w}BitGroup ( RegName, GroupName) - Tests a group of the bit for non-zero value
getReg{w}BitGroupVal (RegName, GroupName) - Reads a value of the bits in group
setReg{w}BitGroupVal (RegName, GroupName, GroupVal ) - Sets the group of the bits to the specified value.
RegName - Register name
BitName - Name of the bit
GroupName - Name of the group
BitMask - Mask of the bit
BitsMask - Mask specifying one or more bits
BitsVal - Value of the bits masked by BitsMask
GroupMask - Mask of the group of bits
GetMask - Mask for reading bit(s)
ClrMask - Mask for clearing bit(s)
SetMask - Mask for setting bit(s)
InvMask - Mask for inverting bit(s)
RegValue - Value of the whole register
BitValue - Value of the bit (0 for 0, anything else = 1)
{w} - Width of the register (8, 16, 32). The available width of the registers depends on used platform.