On 2012-12-05 09:49, Peter Maydell wrote: > On 5 December 2012 15:36, Richard Henderson <r...@twiddle.net> wrote: >> On 2012-12-04 17:29, Petar Jovanovic wrote: >>> rs5_0 = (int8_t)(rs5_0 << 2) >> 2; >> >> This is more portably written as >> >> rs5_0 = (rs5_0 ^ 0x20) - 0x20; > > ...but way more obscurely. If we want to play that > kind of game can we have a sign-extension function in > a header somewhere?
I dunno about more obscurely. It took me a minute to figure out what was wanted in the original. As for a helper function... sure. r~
