For the reasons others have mentioned, plus BCD doesnt suffer data type issues in the same way unless the output data type is wrong, but then the coder has more

For the reasons others have mentioned, plus BCD doesnt suffer data type issues in the same way unless the output data type is wrong, but then the coder has more problems than they realise. The only real disadvantage for BCD is its not as quick as Floating point arithmetic, or bit swapping data types, but with todays faster processors, for most people I'd say the slower speed of BCD is a non issue. Throw in other hardware issues, like bit swapping in non ECC memory and the chances of error's accumulate if not using BCD.