* Richard Henderson :
> PSW_X is cleared after every instruction, and only set by RFI.
> PSW_B is cleared after every non-branch, or branch not taken,
> and only set by taken branches. We can clear both bits with a
> single store, at most once per TB. Taken branches set PSW_B,
> at most once per
PSW_X is cleared after every instruction, and only set by RFI.
PSW_B is cleared after every non-branch, or branch not taken,
and only set by taken branches. We can clear both bits with a
single store, at most once per TB. Taken branches set PSW_B,
at most once per TB.
Signed-off-by: Richard Hend
