136a137,138
> static constexpr auto NoCapableFU = -2;
> static constexpr auto NoFreeFU = -1;
138,139c140,143
< * Gets a FU providing the requested capability. Will mark the unit as busy,
< * but leaves the freeing of the unit up to the IEW stage.
---
> * Gets a FU providing the requested capability. Will mark the
> * unit as busy, but leaves the freeing of the unit up to the IEW
> * stage.
> *
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< * @return Returns -2 if the FU pool does not have the capability, -1 if
< * there is no free FU, and the FU's index otherwise.
---
> * @return Returns NoCapableFU if the FU pool does not have the
> * capability, NoFreeFU if there is no free FU, and the FU's index
> * otherwise.