be done after coding an LPS, and whenever the probability interval register is less than X'8000' (0.75 in decimal notation)

after coding an MPS.

the MPS renormalization is required, Next_Index_MPS gives the new index for the LPS probability estimate. If

Switch_MPS is 1 for the old index, the MPS symbol sense must be inverted after an LPS.

the information stored for context-index S. The new value of Index(S) is obtained from Table D.3 from the column labeled

Next_Index_MPS, as that is the next index after an MPS renormalization. This next index is stored as the new value of

Index(S) in the context storage at context-index S, and the value of Qe at this new Index(S) becomes the new Qe(S).

MPS(S) does not change.

after_MPS

I = Next_Index_MPS(I)

Index(S) = I

Qe(S) = Qe_Value(I)