> Legit point. IBM POWER has 128-bit IEEE floats and decimal hardware coprocessors, but I believe the rest of the CPU is still 64-bits wide. Yes (POWER9+, I th

> Legit point. IBM POWER has 128-bit IEEE floats and decimal hardware coprocessors, but I believe the rest of the CPU is still 64-bits wide. Yes (POWER9+, I think), but also 128-bit "IBM" format. Transitioning to an IEEE ABI for ppc64le GNU/Linux has caused some pain in GCC and elsewhere recently. (I don't know how software long double is typically compiled and how fast the results are.)