HDMC Bitfield Access (3)

Problems and Unresolved Issues

• Register format is defined in configuration file, but readonly flags are in the parts file. Should/could they be moved? [NB these flags may change to support verify() method].
• Create one class per register format? Or one class per register part per module?
• Ideally, only define read functions for readable bits and write functions for writeable bits.
• Check that value for sparse ``bit menu'' type field is one of the known values; exception if not?
• Check that value for bit field is within range of bit field size; exception if not?
• Should Register (or suitable subclass) cache the last value read or written. Otherwise write functions need read/modify/write cycle.
• Should bit field manipulation functions actually write back the new register value; or use a separate MyReg::write() using the modified cached value? Or provide both options?!
• With a compiler, these choices are simple to change...