From 7494aa8a14ddf2cc56641d7c0d1a39503bec8346 Mon Sep 17 00:00:00 2001 From: Ali Saidi Date: Sun, 28 Jan 2007 15:42:01 -0500 Subject: [PATCH] make unimplemented ops fail return correct traps for ua2005 fpops that aren't implemented in hw --HG-- extra : convert_revision : 998fd43f77c5de7078bac1c6caab296b18c9366d --- src/arch/sparc/isa/decoder.isa | 183 +++++++++++++++------------------ 1 file changed, 85 insertions(+), 98 deletions(-) diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa index 32256a04e..5ad735430 100644 --- a/src/arch/sparc/isa/decoder.isa +++ b/src/arch/sparc/isa/decoder.isa @@ -159,8 +159,8 @@ decode OP default Unknown::unknown() } //SETHI (or NOP if rd == 0 and imm == 0) 0x4: SetHi::sethi({{Rd.udw = imm;}}); - 0x5: Trap::fbpfcc({{fault = new FpDisabled;}}); - 0x6: Trap::fbfcc({{fault = new FpDisabled;}}); + 0x5: FailUnimpl::fbpfcc(); + 0x6: FailUnimpl::fbfcc(); } 0x1: BranchN::call(30, {{ if (Pstate<3:>) @@ -501,20 +501,7 @@ decode OP default Unknown::unknown() if(Rs2_or_imm13.sdw == 0) fault = new DivisionByZero; else Rd.sdw = Rs1.sdw / Rs2_or_imm13.sdw; }}); - 0x2E: decode RS1 { - 0x0: IntOp::popc({{ - int64_t count = 0; - uint64_t temp = Rs2_or_imm13; - //Count the 1s in the front 4bits until none are left - uint8_t oneBits[] = {0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4}; - while(temp) - { - count += oneBits[temp & 0xF]; - temp = temp >> 4; - } - Rd = count; - }}); - } + 0x2E: Trap::popc({{fault = new IllegalInstruction;}}); 0x2F: decode RCOND3 { 0x1: movreq({{Rd = (Rs1.sdw == 0) ? Rs2_or_imm10 : Rd;}}); @@ -663,7 +650,7 @@ decode OP default Unknown::unknown() Fsr &= ~(7 << 14); Fsr &= ~(0x1F); }}); - 0x03: Trap::fmovq({{fault = new FpExceptionOther;}}); + 0x03: Trap::fmovq({{fault = new FpExceptionOther;}}); //unimp fpop 0x05: fnegs({{ Frds.uw = Frs2s.uw ^ (1UL << 31); //fsr.ftt = fsr.cexc = 0 @@ -676,7 +663,7 @@ decode OP default Unknown::unknown() Fsr &= ~(7 << 14); Fsr &= ~(0x1F); }}); - 0x07: Trap::fnegq({{fault = new FpDisabled;}}); + 0x07: Trap::fnegq({{fault = new FpExceptionOther;}}); //fpop unimp 0x09: fabss({{ Frds.uw = ((1UL << 31) - 1) & Frs2s.uw; //fsr.ftt = fsr.cexc = 0 @@ -689,106 +676,106 @@ decode OP default Unknown::unknown() Fsr &= ~(7 << 14); Fsr &= ~(0x1F); }}); - 0x0B: Trap::fabsq({{fault = new FpDisabled;}}); + 0x0B: Trap::fabsq({{fault = new FpExceptionOther;}}); //fpop unimp 0x29: fsqrts({{Frds.sf = std::sqrt(Frs2s.sf);}}); 0x2A: fsqrtd({{Frd.df = std::sqrt(Frs2.df);}}); - 0x2B: Trap::fsqrtq({{fault = new FpDisabled;}}); + 0x2B: Trap::fsqrtq({{fault = new FpExceptionOther;}}); //unimp fpop 0x41: fadds({{Frds.sf = Frs1s.sf + Frs2s.sf;}}); 0x42: faddd({{Frd.df = Frs1.df + Frs2.df;}}); - 0x43: Trap::faddq({{fault = new FpDisabled;}}); + 0x43: Trap::faddq({{fault = new FpExceptionOther;}}); //unimp fpop 0x45: fsubs({{Frds.sf = Frs1s.sf - Frs2s.sf;}}); 0x46: fsubd({{Frd.df = Frs1.df - Frs2.df;}}); - 0x47: Trap::fsubq({{fault = new FpDisabled;}}); + 0x47: Trap::fsubq({{fault = new FpExceptionOther;}}); //unimp fpop 0x49: fmuls({{Frds.sf = Frs1s.sf * Frs2s.sf;}}); 0x4A: fmuld({{Frd.df = Frs1.df * Frs2.df;}}); - 0x4B: Trap::fmulq({{fault = new FpDisabled;}}); + 0x4B: Trap::fmulq({{fault = new FpExceptionOther;}}); //unimp fpop 0x4D: fdivs({{Frds.sf = Frs1s.sf / Frs2s.sf;}}); 0x4E: fdivd({{Frd.df = Frs1.df / Frs2.df;}}); - 0x4F: Trap::fdivq({{fault = new FpDisabled;}}); + 0x4F: Trap::fdivq({{fault = new FpExceptionOther;}}); //unimp fpop 0x69: fsmuld({{Frd.df = Frs1s.sf * Frs2s.sf;}}); - 0x6E: Trap::fdmulq({{fault = new FpDisabled;}}); + 0x6E: Trap::fdmulq({{fault = new FpExceptionOther;}}); //unimp fpop 0x81: fstox({{ Frd.df = (double)static_cast(Frs2s.sf); }}); 0x82: fdtox({{ Frd.df = (double)static_cast(Frs2.df); }}); - 0x83: Trap::fqtox({{fault = new FpDisabled;}}); + 0x83: Trap::fqtox({{fault = new FpExceptionOther;}}); //unimp fpop 0x84: fxtos({{ Frds.sf = static_cast((int64_t)Frs2.df); }}); 0x88: fxtod({{ Frd.df = static_cast((int64_t)Frs2.df); }}); - 0x8C: Trap::fxtoq({{fault = new FpDisabled;}}); + 0x8C: Trap::fxtoq({{fault = new FpExceptionOther;}}); //unimp fpop 0xC4: fitos({{ Frds.sf = static_cast((int32_t)Frs2s.sf); }}); 0xC6: fdtos({{Frds.sf = Frs2.df;}}); - 0xC7: Trap::fqtos({{fault = new FpDisabled;}}); + 0xC7: Trap::fqtos({{fault = new FpExceptionOther;}}); //unimp fpop 0xC8: fitod({{ Frd.df = static_cast((int32_t)Frs2s.sf); }}); 0xC9: fstod({{Frd.df = Frs2s.sf;}}); - 0xCB: Trap::fqtod({{fault = new FpDisabled;}}); - 0xCC: Trap::fitoq({{fault = new FpDisabled;}}); - 0xCD: Trap::fstoq({{fault = new FpDisabled;}}); - 0xCE: Trap::fdtoq({{fault = new FpDisabled;}}); + 0xCB: Trap::fqtod({{fault = new FpExceptionOther;}}); // unimp fpop + 0xCC: Trap::fitoq({{fault = new FpExceptionOther;}}); // unimp fpop + 0xCD: Trap::fstoq({{fault = new FpExceptionOther;}}); // unimp fpop + 0xCE: Trap::fdtoq({{fault = new FpExceptionOther;}}); // unimp fpop 0xD1: fstoi({{ Frds.sf = (float)static_cast(Frs2s.sf); }}); 0xD2: fdtoi({{ Frds.sf = (float)static_cast(Frs2.df); }}); - 0xD3: Trap::fqtoi({{fault = new FpDisabled;}}); - default: Trap::fpop1({{fault = new FpDisabled;}}); + 0xD3: Trap::fqtoi({{fault = new FpExceptionOther;}}); // unimp fpop + default: FailUnimpl::fpop1(); } } 0x35: Trap::fpop2({{fault = new FpDisabled;}}); //This used to be just impdep1, but now it's a whole bunch //of instructions 0x36: decode OPF{ - 0x00: Trap::edge8({{fault = new IllegalInstruction;}}); - 0x01: Trap::edge8n({{fault = new IllegalInstruction;}}); - 0x02: Trap::edge8l({{fault = new IllegalInstruction;}}); - 0x03: Trap::edge8ln({{fault = new IllegalInstruction;}}); - 0x04: Trap::edge16({{fault = new IllegalInstruction;}}); - 0x05: Trap::edge16n({{fault = new IllegalInstruction;}}); - 0x06: Trap::edge16l({{fault = new IllegalInstruction;}}); - 0x07: Trap::edge16ln({{fault = new IllegalInstruction;}}); - 0x08: Trap::edge32({{fault = new IllegalInstruction;}}); - 0x09: Trap::edge32n({{fault = new IllegalInstruction;}}); - 0x0A: Trap::edge32l({{fault = new IllegalInstruction;}}); - 0x0B: Trap::edge32ln({{fault = new IllegalInstruction;}}); - 0x10: Trap::array8({{fault = new IllegalInstruction;}}); - 0x12: Trap::array16({{fault = new IllegalInstruction;}}); - 0x14: Trap::array32({{fault = new IllegalInstruction;}}); + 0x00: FailUnimpl::edge8(); + 0x01: FailUnimpl::edge8n(); + 0x02: FailUnimpl::edge8l(); + 0x03: FailUnimpl::edge8ln(); + 0x04: FailUnimpl::edge16(); + 0x05: FailUnimpl::edge16n(); + 0x06: FailUnimpl::edge16l(); + 0x07: FailUnimpl::edge16ln(); + 0x08: FailUnimpl::edge32(); + 0x09: FailUnimpl::edge32n(); + 0x0A: FailUnimpl::edge32l(); + 0x0B: FailUnimpl::edge32ln(); + 0x10: FailUnimpl::array8(); + 0x12: FailUnimpl::array16(); + 0x14: FailUnimpl::array32(); 0x18: BasicOperate::alignaddr({{ uint64_t sum = Rs1 + Rs2; Rd = sum & ~7; Gsr = (Gsr & ~7) | (sum & 7); }}); - 0x19: Trap::bmask({{fault = new IllegalInstruction;}}); + 0x19: FailUnimpl::bmask(); 0x1A: BasicOperate::alignaddresslittle({{ uint64_t sum = Rs1 + Rs2; Rd = sum & ~7; Gsr = (Gsr & ~7) | ((~sum + 1) & 7); }}); - 0x20: Trap::fcmple16({{fault = new IllegalInstruction;}}); - 0x22: Trap::fcmpne16({{fault = new IllegalInstruction;}}); - 0x24: Trap::fcmple32({{fault = new IllegalInstruction;}}); - 0x26: Trap::fcmpne32({{fault = new IllegalInstruction;}}); - 0x28: Trap::fcmpgt16({{fault = new IllegalInstruction;}}); - 0x2A: Trap::fcmpeq16({{fault = new IllegalInstruction;}}); - 0x2C: Trap::fcmpgt32({{fault = new IllegalInstruction;}}); - 0x2E: Trap::fcmpeq32({{fault = new IllegalInstruction;}}); - 0x31: Trap::fmul8x16({{fault = new IllegalInstruction;}}); - 0x33: Trap::fmul8x16au({{fault = new IllegalInstruction;}}); - 0x35: Trap::fmul8x16al({{fault = new IllegalInstruction;}}); - 0x36: Trap::fmul8sux16({{fault = new IllegalInstruction;}}); - 0x37: Trap::fmul8ulx16({{fault = new IllegalInstruction;}}); - 0x38: Trap::fmuld8sux16({{fault = new IllegalInstruction;}}); - 0x39: Trap::fmuld8ulx16({{fault = new IllegalInstruction;}}); + 0x20: FailUnimpl::fcmple16(); + 0x22: FailUnimpl::fcmpne16(); + 0x24: FailUnimpl::fcmple32(); + 0x26: FailUnimpl::fcmpne32(); + 0x28: FailUnimpl::fcmpgt16(); + 0x2A: FailUnimpl::fcmpeq16(); + 0x2C: FailUnimpl::fcmpgt32(); + 0x2E: FailUnimpl::fcmpeq32(); + 0x31: FailUnimpl::fmul8x16(); + 0x33: FailUnimpl::fmul8x16au(); + 0x35: FailUnimpl::fmul8x16al(); + 0x36: FailUnimpl::fmul8sux16(); + 0x37: FailUnimpl::fmul8ulx16(); + 0x38: FailUnimpl::fmuld8sux16(); + 0x39: FailUnimpl::fmuld8ulx16(); 0x3A: Trap::fpack32({{fault = new IllegalInstruction;}}); 0x3B: Trap::fpack16({{fault = new IllegalInstruction;}}); 0x3D: Trap::fpackfix({{fault = new IllegalInstruction;}}); @@ -820,58 +807,58 @@ decode OP default Unknown::unknown() } }}); 0x4B: Trap::fpmerge({{fault = new IllegalInstruction;}}); - 0x4C: Trap::bshuffle({{fault = new IllegalInstruction;}}); - 0x4D: Trap::fexpand({{fault = new IllegalInstruction;}}); - 0x50: Trap::fpadd16({{fault = new IllegalInstruction;}}); - 0x51: Trap::fpadd16s({{fault = new IllegalInstruction;}}); - 0x52: Trap::fpadd32({{fault = new IllegalInstruction;}}); - 0x53: Trap::fpadd32s({{fault = new IllegalInstruction;}}); - 0x54: Trap::fpsub16({{fault = new IllegalInstruction;}}); - 0x55: Trap::fpsub16s({{fault = new IllegalInstruction;}}); - 0x56: Trap::fpsub32({{fault = new IllegalInstruction;}}); - 0x57: Trap::fpsub32s({{fault = new IllegalInstruction;}}); + 0x4C: FailUnimpl::bshuffle(); + 0x4D: FailUnimpl::fexpand(); + 0x50: FailUnimpl::fpadd16(); + 0x51: FailUnimpl::fpadd16s(); + 0x52: FailUnimpl::fpadd32(); + 0x53: FailUnimpl::fpadd32s(); + 0x54: FailUnimpl::fpsub16(); + 0x55: FailUnimpl::fpsub16s(); + 0x56: FailUnimpl::fpsub32(); + 0x57: FailUnimpl::fpsub32s(); 0x60: BasicOperate::fzero({{Frd.df = 0;}}); 0x61: BasicOperate::fzeros({{Frds.sf = 0;}}); - 0x62: Trap::fnor({{fault = new IllegalInstruction;}}); - 0x63: Trap::fnors({{fault = new IllegalInstruction;}}); - 0x64: Trap::fandnot2({{fault = new IllegalInstruction;}}); - 0x65: Trap::fandnot2s({{fault = new IllegalInstruction;}}); + 0x62: FailUnimpl::fnor(); + 0x63: FailUnimpl::fnors(); + 0x64: FailUnimpl::fandnot2(); + 0x65: FailUnimpl::fandnot2s(); 0x66: BasicOperate::fnot2({{ Frd.df = (double)(~((uint64_t)Frs2.df)); }}); 0x67: BasicOperate::fnot2s({{ Frds.sf = (float)(~((uint32_t)Frs2s.sf)); }}); - 0x68: Trap::fandnot1({{fault = new IllegalInstruction;}}); - 0x69: Trap::fandnot1s({{fault = new IllegalInstruction;}}); + 0x68: FailUnimpl::fandnot1(); + 0x69: FailUnimpl::fandnot1s(); 0x6A: BasicOperate::fnot1({{ Frd.df = (double)(~((uint64_t)Frs1.df)); }}); 0x6B: BasicOperate::fnot1s({{ Frds.sf = (float)(~((uint32_t)Frs1s.sf)); }}); - 0x6C: Trap::fxor({{fault = new IllegalInstruction;}}); - 0x6D: Trap::fxors({{fault = new IllegalInstruction;}}); - 0x6E: Trap::fnand({{fault = new IllegalInstruction;}}); - 0x6F: Trap::fnands({{fault = new IllegalInstruction;}}); - 0x70: Trap::fand({{fault = new IllegalInstruction;}}); - 0x71: Trap::fands({{fault = new IllegalInstruction;}}); - 0x72: Trap::fxnor({{fault = new IllegalInstruction;}}); - 0x73: Trap::fxnors({{fault = new IllegalInstruction;}}); + 0x6C: FailUnimpl::fxor(); + 0x6D: FailUnimpl::fxors(); + 0x6E: FailUnimpl::fnand(); + 0x6F: FailUnimpl::fnands(); + 0x70: FailUnimpl::fand(); + 0x71: FailUnimpl::fands(); + 0x72: FailUnimpl::fxnor(); + 0x73: FailUnimpl::fxnors(); 0x74: BasicOperate::fsrc1({{Frd.udw = Frs1.udw;}}); 0x75: BasicOperate::fsrc1s({{Frds.uw = Frs1s.uw;}}); - 0x76: Trap::fornot2({{fault = new IllegalInstruction;}}); - 0x77: Trap::fornot2s({{fault = new IllegalInstruction;}}); + 0x76: FailUnimpl::fornot2(); + 0x77: FailUnimpl::fornot2s(); 0x78: BasicOperate::fsrc2({{Frd.udw = Frs2.udw;}}); 0x79: BasicOperate::fsrc2s({{Frds.uw = Frs2s.uw;}}); - 0x7A: Trap::fornot1({{fault = new IllegalInstruction;}}); - 0x7B: Trap::fornot1s({{fault = new IllegalInstruction;}}); - 0x7C: Trap::for({{fault = new IllegalInstruction;}}); - 0x7D: Trap::fors({{fault = new IllegalInstruction;}}); - 0x7E: Trap::fone({{fault = new IllegalInstruction;}}); - 0x7F: Trap::fones({{fault = new IllegalInstruction;}}); + 0x7A: FailUnimpl::fornot1(); + 0x7B: FailUnimpl::fornot1s(); + 0x7C: FailUnimpl::for(); + 0x7D: FailUnimpl::fors(); + 0x7E: BasicOperate::fone({{Frd.udw = std::numeric_limits::max();}}); + 0x7F: BasicOperate::fones({{Frds.uw = std::numeric_limits::max();}}); 0x80: Trap::shutdown({{fault = new IllegalInstruction;}}); - 0x81: Trap::siam({{fault = new IllegalInstruction;}}); + 0x81: FailUnimpl::siam(); } 0x37: Trap::impdep2({{fault = new IllegalInstruction;}}); 0x38: Branch::jmpl({{