The basic datapath makes the following assumptions:

1. We will never need to load a PC from memory.
2. We will never need the PC as a source operand for the ALU.
3. All branch operations will have a SatusMode == 0
4. If we ever load the StatusRegister from memory, StatusMode will be zero.
5. The StatusRegister is assigned to register #6 in the RegisterFile. If both the StatusRegister and register #6 are written in the same cycle, the value on the WD input will be the one placed into register #6. This makes sense in cases where we wish to load the StatusRegister from memory (especially since we're assuming that the StatusMode in this case must be zero!).