Hi,

There are no current plans to add 80 bit FP support.

The major reason is that FP code generation has been switching to the use of SSE/SSE2/SSE3 instruction sets instead of the x87 FP stack since that is what both the AMD and Intel recent and future chip generations are focusing their performance efforts on. These instruction sets only support 32 and 64 bit FP formats.

Ronald Laeremans
Acting Product Unit Manager
Visual C++ Team