1/* 2 * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 18/* 19 * Floating-Point Instructions 20 */ 21 22/*************************************/ 23/* Scalar FP */ 24/*************************************/ 25Q6INSN(F2_sfadd,"Rd32=sfadd(Rs32,Rt32)",ATTRIBS(), 26"Floating-Point Add", 27{ RdV=fUNFLOAT(fFLOAT(RsV)+fFLOAT(RtV));}) 28 29Q6INSN(F2_sfsub,"Rd32=sfsub(Rs32,Rt32)",ATTRIBS(), 30"Floating-Point Subtract", 31{ RdV=fUNFLOAT(fFLOAT(RsV)-fFLOAT(RtV));}) 32 33Q6INSN(F2_sfmpy,"Rd32=sfmpy(Rs32,Rt32)",ATTRIBS(), 34"Floating-Point Multiply", 35{ RdV=fUNFLOAT(fSFMPY(fFLOAT(RsV),fFLOAT(RtV)));}) 36 37Q6INSN(F2_sffma,"Rx32+=sfmpy(Rs32,Rt32)",ATTRIBS(), 38"Floating-Point Fused Multiply Add", 39{ RxV=fUNFLOAT(fFMAF(fFLOAT(RsV),fFLOAT(RtV),fFLOAT(RxV)));}) 40 41Q6INSN(F2_sffma_sc,"Rx32+=sfmpy(Rs32,Rt32,Pu4):scale",ATTRIBS(), 42"Floating-Point Fused Multiply Add w/ Additional Scaling (2**Pu)", 43{ 44 fHIDE(size4s_t tmp;) 45 fCHECKSFNAN3(RxV,RxV,RsV,RtV); 46 tmp=fUNFLOAT(fFMAFX(fFLOAT(RsV),fFLOAT(RtV),fFLOAT(RxV),PuV)); 47 if (!((fFLOAT(RxV) == 0.0) && fISZEROPROD(fFLOAT(RsV),fFLOAT(RtV)))) RxV = tmp; 48}) 49 50Q6INSN(F2_sffms,"Rx32-=sfmpy(Rs32,Rt32)",ATTRIBS(), 51"Floating-Point Fused Multiply Add", 52{ RxV=fUNFLOAT(fFMAF(-fFLOAT(RsV),fFLOAT(RtV),fFLOAT(RxV))); }) 53 54Q6INSN(F2_sffma_lib,"Rx32+=sfmpy(Rs32,Rt32):lib",ATTRIBS(), 55"Floating-Point Fused Multiply Add for Library Routines", 56{ fFPSETROUND_NEAREST(); fHIDE(int infinp; int infminusinf; size4s_t tmp;) 57 infminusinf = ((isinf(fFLOAT(RxV))) && 58 (fISINFPROD(fFLOAT(RsV),fFLOAT(RtV))) && 59 (fGETBIT(31,RsV ^ RxV ^ RtV) != 0)); 60 infinp = (isinf(fFLOAT(RxV))) || (isinf(fFLOAT(RtV))) || (isinf(fFLOAT(RsV))); 61 fCHECKSFNAN3(RxV,RxV,RsV,RtV); 62 tmp=fUNFLOAT(fFMAF(fFLOAT(RsV),fFLOAT(RtV),fFLOAT(RxV))); 63 if (!((fFLOAT(RxV) == 0.0) && fISZEROPROD(fFLOAT(RsV),fFLOAT(RtV)))) RxV = tmp; 64 fFPCANCELFLAGS(); 65 if (isinf(fFLOAT(RxV)) && !infinp) RxV = RxV - 1; 66 if (infminusinf) RxV = 0; 67}) 68 69Q6INSN(F2_sffms_lib,"Rx32-=sfmpy(Rs32,Rt32):lib",ATTRIBS(), 70"Floating-Point Fused Multiply Add for Library Routines", 71{ fFPSETROUND_NEAREST(); fHIDE(int infinp; int infminusinf; size4s_t tmp;) 72 infminusinf = ((isinf(fFLOAT(RxV))) && 73 (fISINFPROD(fFLOAT(RsV),fFLOAT(RtV))) && 74 (fGETBIT(31,RsV ^ RxV ^ RtV) == 0)); 75 infinp = (isinf(fFLOAT(RxV))) || (isinf(fFLOAT(RtV))) || (isinf(fFLOAT(RsV))); 76 fCHECKSFNAN3(RxV,RxV,RsV,RtV); 77 tmp=fUNFLOAT(fFMAF(-fFLOAT(RsV),fFLOAT(RtV),fFLOAT(RxV))); 78 if (!((fFLOAT(RxV) == 0.0) && fISZEROPROD(fFLOAT(RsV),fFLOAT(RtV)))) RxV = tmp; 79 fFPCANCELFLAGS(); 80 if (isinf(fFLOAT(RxV)) && !infinp) RxV = RxV - 1; 81 if (infminusinf) RxV = 0; 82}) 83 84 85Q6INSN(F2_sfcmpeq,"Pd4=sfcmp.eq(Rs32,Rt32)",ATTRIBS(), 86"Floating Point Compare for Equal", 87{PdV=f8BITSOF(fFLOAT(RsV)==fFLOAT(RtV));}) 88 89Q6INSN(F2_sfcmpgt,"Pd4=sfcmp.gt(Rs32,Rt32)",ATTRIBS(), 90"Floating-Point Compare for Greater Than", 91{PdV=f8BITSOF(fFLOAT(RsV)>fFLOAT(RtV));}) 92 93/* cmpge is not the same as !cmpgt(swapops) in IEEE */ 94 95Q6INSN(F2_sfcmpge,"Pd4=sfcmp.ge(Rs32,Rt32)",ATTRIBS(), 96"Floating-Point Compare for Greater Than / Equal To", 97{PdV=f8BITSOF(fFLOAT(RsV)>=fFLOAT(RtV));}) 98 99/* Everyone seems to have this... */ 100 101Q6INSN(F2_sfcmpuo,"Pd4=sfcmp.uo(Rs32,Rt32)",ATTRIBS(), 102"Floating-Point Compare for Unordered", 103{PdV=f8BITSOF(isunordered(fFLOAT(RsV),fFLOAT(RtV)));}) 104 105 106Q6INSN(F2_sfmax,"Rd32=sfmax(Rs32,Rt32)",ATTRIBS(), 107"Maximum of Floating-Point values", 108{ RdV = fUNFLOAT(fSF_MAX(fFLOAT(RsV),fFLOAT(RtV))); }) 109 110Q6INSN(F2_sfmin,"Rd32=sfmin(Rs32,Rt32)",ATTRIBS(), 111"Minimum of Floating-Point values", 112{ RdV = fUNFLOAT(fSF_MIN(fFLOAT(RsV),fFLOAT(RtV))); }) 113 114 115Q6INSN(F2_sfclass,"Pd4=sfclass(Rs32,#u5)",ATTRIBS(), 116"Classify Floating-Point Value", 117{ 118 fHIDE(int class;) 119 PdV = 0; 120 class = fpclassify(fFLOAT(RsV)); 121 /* Is the value zero? */ 122 if (fGETBIT(0,uiV) && (class == FP_ZERO)) PdV = 0xff; 123 if (fGETBIT(1,uiV) && (class == FP_NORMAL)) PdV = 0xff; 124 if (fGETBIT(2,uiV) && (class == FP_SUBNORMAL)) PdV = 0xff; 125 if (fGETBIT(3,uiV) && (class == FP_INFINITE)) PdV = 0xff; 126 if (fGETBIT(4,uiV) && (class == FP_NAN)) PdV = 0xff; 127 fFPCANCELFLAGS(); 128}) 129 130/* Range: +/- (1.0 .. 1+(63/64)) * 2**(-6 .. +9) */ 131/* More immediate bits should probably be used for more precision? */ 132 133Q6INSN(F2_sfimm_p,"Rd32=sfmake(#u10):pos",ATTRIBS(), 134"Make Floating Point Value", 135{ 136 RdV = (127 - 6) << 23; 137 RdV += uiV << 17; 138}) 139 140Q6INSN(F2_sfimm_n,"Rd32=sfmake(#u10):neg",ATTRIBS(), 141"Make Floating Point Value", 142{ 143 RdV = (127 - 6) << 23; 144 RdV += (uiV << 17); 145 RdV |= (1 << 31); 146}) 147 148 149Q6INSN(F2_sfrecipa,"Rd32,Pe4=sfrecipa(Rs32,Rt32)",ATTRIBS(), 150"Reciprocal Approximation for Division", 151{ 152 fHIDE(int idx;) 153 fHIDE(int adjust;) 154 fHIDE(int mant;) 155 fHIDE(int exp;) 156 if (fSF_RECIP_COMMON(RsV,RtV,RdV,adjust)) { 157 PeV = adjust; 158 idx = (RtV >> 16) & 0x7f; 159 mant = (fSF_RECIP_LOOKUP(idx) << 15) | 1; 160 exp = fSF_BIAS() - (fSF_GETEXP(RtV) - fSF_BIAS()) - 1; 161 RdV = fMAKESF(fGETBIT(31,RtV),exp,mant); 162 } 163}) 164 165Q6INSN(F2_sffixupn,"Rd32=sffixupn(Rs32,Rt32)",ATTRIBS(), 166"Fix Up Numerator", 167{ 168 fHIDE(int adjust;) 169 fSF_RECIP_COMMON(RsV,RtV,RdV,adjust); 170 RdV = RsV; 171}) 172 173Q6INSN(F2_sffixupd,"Rd32=sffixupd(Rs32,Rt32)",ATTRIBS(), 174"Fix Up Denominator", 175{ 176 fHIDE(int adjust;) 177 fSF_RECIP_COMMON(RsV,RtV,RdV,adjust); 178 RdV = RtV; 179}) 180 181Q6INSN(F2_sfinvsqrta,"Rd32,Pe4=sfinvsqrta(Rs32)",ATTRIBS(), 182"Reciprocal Square Root Approximation", 183{ 184 fHIDE(int idx;) 185 fHIDE(int adjust;) 186 fHIDE(int mant;) 187 fHIDE(int exp;) 188 if (fSF_INVSQRT_COMMON(RsV,RdV,adjust)) { 189 PeV = adjust; 190 idx = (RsV >> 17) & 0x7f; 191 mant = (fSF_INVSQRT_LOOKUP(idx) << 15); 192 exp = fSF_BIAS() - ((fSF_GETEXP(RsV) - fSF_BIAS()) >> 1) - 1; 193 RdV = fMAKESF(fGETBIT(31,RsV),exp,mant); 194 } 195}) 196 197Q6INSN(F2_sffixupr,"Rd32=sffixupr(Rs32)",ATTRIBS(), 198"Fix Up Radicand", 199{ 200 fHIDE(int adjust;) 201 fSF_INVSQRT_COMMON(RsV,RdV,adjust); 202 RdV = RsV; 203}) 204 205/*************************************/ 206/* Scalar DP */ 207/*************************************/ 208Q6INSN(F2_dfadd,"Rdd32=dfadd(Rss32,Rtt32)",ATTRIBS(), 209"Floating-Point Add", 210{ RddV=fUNDOUBLE(fDOUBLE(RssV)+fDOUBLE(RttV));}) 211 212Q6INSN(F2_dfsub,"Rdd32=dfsub(Rss32,Rtt32)",ATTRIBS(), 213"Floating-Point Subtract", 214{ RddV=fUNDOUBLE(fDOUBLE(RssV)-fDOUBLE(RttV));}) 215 216Q6INSN(F2_dfmax,"Rdd32=dfmax(Rss32,Rtt32)",ATTRIBS(), 217"Maximum of Floating-Point values", 218{ RddV = fUNDOUBLE(fDF_MAX(fDOUBLE(RssV),fDOUBLE(RttV))); }) 219 220Q6INSN(F2_dfmin,"Rdd32=dfmin(Rss32,Rtt32)",ATTRIBS(), 221"Minimum of Floating-Point values", 222{ RddV = fUNDOUBLE(fDF_MIN(fDOUBLE(RssV),fDOUBLE(RttV))); }) 223 224Q6INSN(F2_dfmpyfix,"Rdd32=dfmpyfix(Rss32,Rtt32)",ATTRIBS(), 225"Fix Up Multiplicand for Multiplication", 226{ 227 if (fDF_ISDENORM(RssV) && fDF_ISBIG(RttV) && fDF_ISNORMAL(RttV)) RddV = fUNDOUBLE(fDOUBLE(RssV) * 0x1.0p52); 228 else if (fDF_ISDENORM(RttV) && fDF_ISBIG(RssV) && fDF_ISNORMAL(RssV)) RddV = fUNDOUBLE(fDOUBLE(RssV) * 0x1.0p-52); 229 else RddV = RssV; 230}) 231 232Q6INSN(F2_dfmpyll,"Rdd32=dfmpyll(Rss32,Rtt32)",ATTRIBS(), 233"Multiply low*low and shift off low 32 bits into sticky (in MSB)", 234{ 235 fHIDE(size8u_t prod;) 236 prod = fMPY32UU(fGETUWORD(0,RssV),fGETUWORD(0,RttV)); 237 RddV = (prod >> 32) << 1; 238 if (fGETUWORD(0,prod) != 0) fSETBIT(0,RddV,1); 239}) 240 241Q6INSN(F2_dfmpylh,"Rxx32+=dfmpylh(Rss32,Rtt32)",ATTRIBS(), 242"Multiply low*high and accumulate", 243{ 244 RxxV += (fGETUWORD(0,RssV) * (0x00100000 | fZXTN(20,64,fGETUWORD(1,RttV)))) << 1; 245}) 246 247Q6INSN(F2_dfmpyhh,"Rxx32+=dfmpyhh(Rss32,Rtt32)",ATTRIBS(), 248"Multiply high*high and accumulate with L*H value", 249{ 250 RxxV = fUNDOUBLE(fDF_MPY_HH(fDOUBLE(RssV),fDOUBLE(RttV),RxxV)); 251}) 252 253 254 255Q6INSN(F2_dfcmpeq,"Pd4=dfcmp.eq(Rss32,Rtt32)",ATTRIBS(), 256"Floating Point Compare for Equal", 257{PdV=f8BITSOF(fDOUBLE(RssV)==fDOUBLE(RttV));}) 258 259Q6INSN(F2_dfcmpgt,"Pd4=dfcmp.gt(Rss32,Rtt32)",ATTRIBS(), 260"Floating-Point Compare for Greater Than", 261{PdV=f8BITSOF(fDOUBLE(RssV)>fDOUBLE(RttV));}) 262 263 264/* cmpge is not the same as !cmpgt(swapops) in IEEE */ 265 266Q6INSN(F2_dfcmpge,"Pd4=dfcmp.ge(Rss32,Rtt32)",ATTRIBS(), 267"Floating-Point Compare for Greater Than / Equal To", 268{PdV=f8BITSOF(fDOUBLE(RssV)>=fDOUBLE(RttV));}) 269 270/* Everyone seems to have this... */ 271 272Q6INSN(F2_dfcmpuo,"Pd4=dfcmp.uo(Rss32,Rtt32)",ATTRIBS(), 273"Floating-Point Compare for Unordered", 274{PdV=f8BITSOF(isunordered(fDOUBLE(RssV),fDOUBLE(RttV)));}) 275 276 277Q6INSN(F2_dfclass,"Pd4=dfclass(Rss32,#u5)",ATTRIBS(), 278"Classify Floating-Point Value", 279{ 280 fHIDE(int class;) 281 PdV = 0; 282 class = fpclassify(fDOUBLE(RssV)); 283 /* Is the value zero? */ 284 if (fGETBIT(0,uiV) && (class == FP_ZERO)) PdV = 0xff; 285 if (fGETBIT(1,uiV) && (class == FP_NORMAL)) PdV = 0xff; 286 if (fGETBIT(2,uiV) && (class == FP_SUBNORMAL)) PdV = 0xff; 287 if (fGETBIT(3,uiV) && (class == FP_INFINITE)) PdV = 0xff; 288 if (fGETBIT(4,uiV) && (class == FP_NAN)) PdV = 0xff; 289 fFPCANCELFLAGS(); 290}) 291 292 293/* Range: +/- (1.0 .. 1+(63/64)) * 2**(-6 .. +9) */ 294/* More immediate bits should probably be used for more precision? */ 295 296Q6INSN(F2_dfimm_p,"Rdd32=dfmake(#u10):pos",ATTRIBS(), 297"Make Floating Point Value", 298{ 299 RddV = (1023ULL - 6) << 52; 300 RddV += (fHIDE((size8u_t))uiV) << 46; 301}) 302 303Q6INSN(F2_dfimm_n,"Rdd32=dfmake(#u10):neg",ATTRIBS(), 304"Make Floating Point Value", 305{ 306 RddV = (1023ULL - 6) << 52; 307 RddV += (fHIDE((size8u_t))uiV) << 46; 308 RddV |= ((1ULL) << 63); 309}) 310 311 312/* CONVERSION */ 313 314#define CONVERT(TAG,DEST,DESTV,SRC,SRCV,OUTCAST,OUTTYPE,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) \ 315 Q6INSN(F2_conv_##TAG##MODETAG,#DEST"=convert_"#TAG"("#SRC")"#MODESYN,ATTRIBS(), \ 316 "Floating point format conversion", \ 317 { MODEBEH DESTV = OUTCAST(conv_##INTYPE##_to_##OUTTYPE(INCAST(SRCV))); }) 318 319CONVERT(sf2df,Rdd32,RddV,Rs32,RsV,fUNDOUBLE,df,fFLOAT,sf,,,) 320CONVERT(df2sf,Rd32,RdV,Rss32,RssV,fUNFLOAT,sf,fDOUBLE,df,,,) 321 322#define ALLINTDST(TAGSTART,SRC,SRCV,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) \ 323CONVERT(TAGSTART##uw,Rd32,RdV,SRC,SRCV,fCAST4u,4u,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) \ 324CONVERT(TAGSTART##w,Rd32,RdV,SRC,SRCV,fCAST4s,4s,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) \ 325CONVERT(TAGSTART##ud,Rdd32,RddV,SRC,SRCV,fCAST8u,8u,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) \ 326CONVERT(TAGSTART##d,Rdd32,RddV,SRC,SRCV,fCAST8s,8s,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) 327 328#define ALLFPDST(TAGSTART,SRC,SRCV,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) \ 329CONVERT(TAGSTART##sf,Rd32,RdV,SRC,SRCV,fUNFLOAT,sf,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) \ 330CONVERT(TAGSTART##df,Rdd32,RddV,SRC,SRCV,fUNDOUBLE,df,INCAST,INTYPE,MODETAG,MODESYN,MODEBEH) 331 332#define ALLINTSRC(GEN,MODETAG,MODESYN,MODEBEH) \ 333GEN(uw##2,Rs32,RsV,fCAST4u,4u,MODETAG,MODESYN,MODEBEH) \ 334GEN(w##2,Rs32,RsV,fCAST4s,4s,MODETAG,MODESYN,MODEBEH) \ 335GEN(ud##2,Rss32,RssV,fCAST8u,8u,MODETAG,MODESYN,MODEBEH) \ 336GEN(d##2,Rss32,RssV,fCAST8s,8s,MODETAG,MODESYN,MODEBEH) 337 338#define ALLFPSRC(GEN,MODETAG,MODESYN,MODEBEH) \ 339GEN(sf##2,Rs32,RsV,fFLOAT,sf,MODETAG,MODESYN,MODEBEH) \ 340GEN(df##2,Rss32,RssV,fDOUBLE,df,MODETAG,MODESYN,MODEBEH) 341 342ALLINTSRC(ALLFPDST,,,) 343ALLFPSRC(ALLINTDST,,,) 344ALLFPSRC(ALLINTDST,_chop,:chop,fFPSETROUND_CHOP();) 345