1. A device comprising: a first combinatorial logic stage having a first input to receive a first data value, a second input to receive a bypass value and an output to provide one of a representation of the first data value or a first predetermined value based on the bypass value; a latch stage having a first input to receive a second data value, a second input to receive the bypass value and an output to provide one of a latched representation of the second data value or a second predetermined value based on the bypass value; and a second combinatorial logic stage having a first input coupled to the output of the first combinatorial logic stage, a second input coupled to the output of the latch stage, and an output.