diff options
Diffstat (limited to 'target/hexagon/imported')
| -rw-r--r-- | target/hexagon/imported/encode_pp.def | 1 | ||||
| -rw-r--r-- | target/hexagon/imported/float.idef | 16 |
2 files changed, 17 insertions, 0 deletions
diff --git a/target/hexagon/imported/encode_pp.def b/target/hexagon/imported/encode_pp.def index b01b4d7aa7..18fe45d696 100644 --- a/target/hexagon/imported/encode_pp.def +++ b/target/hexagon/imported/encode_pp.def @@ -1642,6 +1642,7 @@ SH2_RR_ENC(F2_conv_sf2w, "1011","100","-","000","ddddd") SH2_RR_ENC(F2_conv_sf2uw_chop, "1011","011","-","001","ddddd") SH2_RR_ENC(F2_conv_sf2w_chop, "1011","100","-","001","ddddd") SH2_RR_ENC(F2_sffixupr, "1011","101","-","000","ddddd") +SH2_RR_ENC(F2_sfinvsqrta, "1011","111","-","0ee","ddddd") DEF_FIELDROW_DESC32(ICLASS_S2op" 1100 -------- PP------ --------","[#12] Rd=(Rs,#u6)") diff --git a/target/hexagon/imported/float.idef b/target/hexagon/imported/float.idef index eb5415801a..3e75bc4604 100644 --- a/target/hexagon/imported/float.idef +++ b/target/hexagon/imported/float.idef @@ -178,6 +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", { |