diff options
Diffstat (limited to 'target/hexagon/imported/float.idef')
| -rw-r--r-- | target/hexagon/imported/float.idef | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/hexagon/imported/float.idef b/target/hexagon/imported/float.idef index 76cecfe..3e75bc4 100644 --- a/target/hexagon/imported/float.idef +++ b/target/hexagon/imported/float.idef @@ -146,6 +146,22 @@ Q6INSN(F2_sfimm_n,"Rd32=sfmake(#u10):neg",ATTRIBS(), }) +Q6INSN(F2_sfrecipa,"Rd32,Pe4=sfrecipa(Rs32,Rt32)",ATTRIBS(), +"Reciprocal Approximation for Division", +{ + fHIDE(int idx;) + fHIDE(int adjust;) + fHIDE(int mant;) + fHIDE(int exp;) + if (fSF_RECIP_COMMON(RsV,RtV,RdV,adjust)) { + PeV = adjust; + idx = (RtV >> 16) & 0x7f; + mant = (fSF_RECIP_LOOKUP(idx) << 15) | 1; + exp = fSF_BIAS() - (fSF_GETEXP(RtV) - fSF_BIAS()) - 1; + RdV = fMAKESF(fGETBIT(31,RtV),exp,mant); + } +}) + Q6INSN(F2_sffixupn,"Rd32=sffixupn(Rs32,Rt32)",ATTRIBS(), "Fix Up Numerator", { @@ -162,6 +178,22 @@ Q6INSN(F2_sffixupd,"Rd32=sffixupd(Rs32,Rt32)",ATTRIBS(), RdV = RtV; }) +Q6INSN(F2_sfinvsqrta,"Rd32,Pe4=sfinvsqrta(Rs32)",ATTRIBS(), +"Reciprocal Square Root Approximation", +{ + fHIDE(int idx;) + fHIDE(int adjust;) + fHIDE(int mant;) + fHIDE(int exp;) + if (fSF_INVSQRT_COMMON(RsV,RdV,adjust)) { + PeV = adjust; + idx = (RsV >> 17) & 0x7f; + mant = (fSF_INVSQRT_LOOKUP(idx) << 15); + exp = fSF_BIAS() - ((fSF_GETEXP(RsV) - fSF_BIAS()) >> 1) - 1; + RdV = fMAKESF(fGETBIT(31,RsV),exp,mant); + } +}) + Q6INSN(F2_sffixupr,"Rd32=sffixupr(Rs32)",ATTRIBS(), "Fix Up Radicand", { |