From: Maciej W. Rozycki [ma...@codesourcery.com] > Steve, would you therefore please do us a favour and check what the AVP > for MIPS32r2 requires for support of the floating-point MADD instruction > subset, or preferably, the whole COP1X instruction set? Are these > instructions only mandatory for a 64-bit FPU (CP1.FIR.F64 == 1), or do > they have to be included in all FPU implementations
Maciej, I checked with one of the AVP engineers and he said: "madd/msub/nmadd/nmsub.fmt instructions are required for all release 2 implementations, whether or not that implementation has a 64 bit fpu. They are also required for mips64 release 1 implementations. The AVPs check for this." Steve Ellcey
