BOCHS 2.1.1

Depends of the code.

Generally speaking no you don't, the problem can be with compilers and their processing of that code. Different errors, different buffers and registeres and so on. The more complex the code, the harder life gets.

BOCHS is very complex code, and there are parts of it written in machine/assembler. Assembler programming is very much one set of code for one CPU, another set of code for another CPU. Recompiling say... Solitaire wouldn't have any of that and would be a nice easy compile for a developer on any CPU.

Yeah, the same thing in XT Processors and x86
for each architeture has an set of instructions, and have to be very difficult emulate an x86 (That has biggest number of instructions, with a MIPS or ARM that has Reduced Instruction Computer Set (RISC))

Good news, I foud it
See the FP news section. 25th June 2006.

But not in MIPS

It never was, the source tree is in the 2.1.1 redist, rebuild it.

can i rebuild it?
very hard work :S