On Mon, 2014-05-12 at 13:51 +0100, Joern Rennecke wrote: > On 12 May 2014 13:16, Christian Bruel <christian.br...@st.com> wrote: > > > Just for my curiosity, which other targets have multi-way toggling > > support ? > > The epiphany has, sort of: you read a control register, AND and/or OR > some mask(s) to the value, > and write it back. > If we knew the previous mode, we might elide and AND or an OR. > > I think this is actually quite a common issue.
This is the same as changing/setting the FP modes (PR, SZ) on SH while preserving the other FPSCR bits, or did I miss something? Cheers, Oleg
