Nice explanation for the less technically inclined. 🙂
I feel to have to add my 0.02€ though 😉
6. As these CPUs without a FPU are quite rare that tremor patch is not mainstream. On all “normal” CPUs the FPU version works perfect and better than the tremor one.
The ARM architecture is the most widely used 32-bit CPU architecture in the world. The ARM architecture is used in about 3/4 of all 32 bit processors sold.
As of January 2008, over 10 billion ARM cores have been built, and iSuppli predicts that 5 billion a year will ship in 2011.
Most ARM-based processors do not have floating point capability. It’s only available through a numeric co-processor, or special instruction sets for signal processing, for instance.
I couldn’t get numbers on Intel or AMD processors built so far, but I doubt they go even as high as 1 billion.
Just to put “rare” into perspective. 😉