On Tuesday, March 3, 2015 at 11:16 PM, [email protected] wrote: > On Tue, 3 Mar 2015 13:34:51 -0800 > Sergey Oboguev <[email protected]> wrote: > > > My comment was is not about Intel vs. non-Intel, but about having 64-bit > > as a native type in host machine instructions and leveraged by the > > compiler, rather than simulated by 32-bit host operations. > > I thought there was no direct way to do math on 64 bit integers in 32 bit > Intel and simulation by 32 bit host operations (add, adc) would be > required, as opposed to other platforms which (I believe) have instructions > for 64 bit integer math even in 32 bit mode (i.e. SPARC).
That is exactly Sergey's point. Running a 64bit simulator on a 32bit Intel platform (even with a compiler which has 64bit types) will be significantly slower than running a simulator compiled for a 64bit host. - Mark _______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
