> Is anyone out there using Plan 9 on 386 machines? > I'm just wondering whether it's going to affect anyone > if the default kernels assume they can use some of > the 486 instructions (specifically INVLPG).
I think that's a slippery slope. My AUTH server already crashes whenever I forget that AWK uses floating point arithmetic. Think of it this way: if one of Plan 9's strength is portability across different architectures, it would be nice if this was consistent. By all means add the 486 instructions, but somehow allow some documented way around it. ++L
