xref: /gem5/src/arch/sparc/isa/decoder.isa

// Copyright (c) 2006 The Regents of The University of Michigan
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met: redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer;
// redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution;
// neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Authors: Ali Saidi
//          Gabe Black
//          Steve Reinhardt

////////////////////////////////////////////////////////////////////
//
// The actual decoder specification
//

decode OP default Unknown::unknown()
{
    0x0: decode OP2
    {
        //Throw an illegal instruction acception
        0x0: Trap::illtrap({{fault = new IllegalInstruction;}});
        format BranchN
        {
            0x1: decode BPCC
            {
                0x0: bpcci(19, {{
                    if(passesCondition(Ccr<3:0>, COND2))
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
                0x2: bpccx(19, {{
                    if(passesCondition(Ccr<7:4>, COND2))
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
            }
            0x2: bicc(22, {{
                if(passesCondition(Ccr<3:0>, COND2))
                    NNPC = xc->readPC() + disp;
                else
                    handle_annul
            }});
        }
        0x3: decode RCOND2
        {
            format BranchSplit
            {
                0x1: bpreq({{
                    if(Rs1.sdw == 0)
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
                0x2: bprle({{
                    if(Rs1.sdw <= 0)
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
                0x3: bprl({{
                    if(Rs1.sdw < 0)
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
                0x5: bprne({{
                    if(Rs1.sdw != 0)
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
                0x6: bprg({{
                    if(Rs1.sdw > 0)
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
                0x7: bprge({{
                    if(Rs1.sdw >= 0)
                        NNPC = xc->readPC() + disp;
                    else
                        handle_annul
                }});
            }
        }
        //SETHI (or NOP if rd == 0 and imm == 0)
        0x4: SetHi::sethi({{Rd = imm;}});
        0x5: Trap::fbpfcc({{fault = new FpDisabled;}});
        0x6: Trap::fbfcc({{fault = new FpDisabled;}});
    }
    0x1: BranchN::call(30, {{
            R15 = xc->readPC();
            NNPC = R15 + disp;
    }});
    0x2: decode OP3 {
        format IntOp {
            0x00: add({{Rd = Rs1.sdw + Rs2_or_imm13;}});
            0x01: and({{Rd = Rs1.udw & Rs2_or_imm13;}});
            0x02: or({{Rd = Rs1.udw | Rs2_or_imm13;}});
            0x03: xor({{Rd = Rs1.udw ^ Rs2_or_imm13;}});
            0x04: sub({{Rd = Rs1.sdw - Rs2_or_imm13;}});
            0x05: andn({{Rd = Rs1.udw & ~Rs2_or_imm13;}});
            0x06: orn({{Rd = Rs1.udw | ~Rs2_or_imm13;}});
            0x07: xnor({{Rd = ~(Rs1.udw ^ Rs2_or_imm13);}});
            0x08: addc({{Rd = Rs1.sdw + Rs2_or_imm13 + Ccr<0:0>;}});
            0x09: mulx({{Rd = Rs1 * Rs2_or_imm13;}});
            0x0A: umul({{
                Rd = Rs1.udw<31:0> * Rs2_or_imm13<31:0>;
                Y = Rd<63:32>;
            }});
            0x0B: smul({{
                Rd.sdw = Rs1.sdw<31:0> * Rs2_or_imm13<31:0>;
                Y = Rd.sdw;
            }});
            0x0C: subc({{Rd.sdw = Rs1.sdw + (~Rs2_or_imm13) + 1 - Ccr<0:0>}});
            0x0D: udivx({{
                if(Rs2_or_imm13 == 0) fault = new DivisionByZero;
                else Rd.udw = Rs1.udw / Rs2_or_imm13;
            }});
            0x0E: udiv({{
                if(Rs2_or_imm13 == 0) fault = new DivisionByZero;
                else
                {
                    Rd.udw = ((Y << 32) | Rs1.udw<31:0>) / Rs2_or_imm13;
                    if(Rd.udw >> 32 != 0)
                        Rd.udw = 0xFFFFFFFF;
                }
            }});
            0x0F: sdiv({{
                if(Rs2_or_imm13.sdw == 0)
                    fault = new DivisionByZero;
                else
                {
                    Rd.udw = ((int64_t)((Y << 32) | Rs1.sdw<31:0>)) / Rs2_or_imm13.sdw;
                    if(Rd.udw<63:31> != 0)
                        Rd.udw = 0x7FFFFFFF;
                    else if(Rd.udw<63:> && Rd.udw<62:31> != 0xFFFFFFFF)
                        Rd.udw = 0xFFFFFFFF80000000ULL;
                }
            }});
        }
        format IntOpCc {
            0x10: addcc({{
                int64_t resTemp, val2 = Rs2_or_imm13;
                Rd = resTemp = Rs1 + val2;}},
                {{(Rs1<31:0> + val2<31:0>)<32:>}},
                {{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}},
                {{(Rs1<63:1> + val2<63:1> + (Rs1 & val2)<0:>)<63:>}},
                {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
            );
            0x11: IntOpCcRes::andcc({{Rd = Rs1 & Rs2_or_imm13;}});
            0x12: IntOpCcRes::orcc({{Rd = Rs1 | Rs2_or_imm13;}});
            0x13: IntOpCcRes::xorcc({{Rd = Rs1 ^ Rs2_or_imm13;}});
            0x14: subcc({{
                int64_t val2 = Rs2_or_imm13;
                Rd = Rs1 - val2;}},
                {{(~(Rs1<31:0> + (~val2)<31:0> + 1))<32:>}},
                {{(Rs1<31:> != val2<31:>) && (Rs1<31:> != Rd<31:>)}},
                {{(~(Rs1<63:1> + (~val2)<63:1> +
                    (Rs1 | ~val2)<0:>))<63:>}},
                {{Rs1<63:> != val2<63:> && Rs1<63:> != Rd<63:>}}
            );
            0x15: IntOpCcRes::andncc({{Rd = Rs1 & ~Rs2_or_imm13;}});
            0x16: IntOpCcRes::orncc({{Rd = Rs1 | ~Rs2_or_imm13;}});
            0x17: IntOpCcRes::xnorcc({{Rd = ~(Rs1 ^ Rs2_or_imm13);}});
            0x18: addccc({{
                int64_t resTemp, val2 = Rs2_or_imm13;
                int64_t carryin = Ccr<0:0>;
                Rd = resTemp = Rs1 + val2 + carryin;}},
                {{(Rs1<31:0> + val2<31:0> + carryin)<32:>}},
                {{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}},
                {{(Rs1<63:1> + val2<63:1> +
                    ((Rs1 & val2) | (carryin & (Rs1 | val2)))<0:>)<63:>}},
                {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
            );
            0x1A: umulcc({{
                uint64_t resTemp;
                Rd = resTemp = Rs1.udw<31:0> * Rs2_or_imm13.udw<31:0>;
                Y = resTemp<63:32>;}},
                {{0}},{{0}},{{0}},{{0}});
            0x1B: smulcc({{
                int64_t resTemp;
                Rd = resTemp = Rs1.sdw<31:0> * Rs2_or_imm13.sdw<31:0>;
                Y = resTemp<63:32>;}},
                {{0}},{{0}},{{0}},{{0}});
            0x1C: subccc({{
                int64_t resTemp, val2 = Rs2_or_imm13;
                int64_t carryin = Ccr<0:0>;
                Rd = resTemp = Rs1 + ~val2 + 1 - carryin;}},
                {{(~((Rs1<31:0> + (~(val2 + carryin))<31:0> + 1))<32:>)}},
                {{Rs1<31:> != val2<31:> && Rs1<31:> != resTemp<31:>}},
                {{(~((Rs1<63:1> + (~(val2 + carryin))<63:1>) + (Rs1<0:> + (~(val2+carryin))<0:> + 1)<63:1>))<63:>}},
                {{Rs1<63:> != val2<63:> && Rs1<63:> != resTemp<63:>}}
            );
            0x1D: udivxcc({{
                if(Rs2_or_imm13.udw == 0) fault = new DivisionByZero;
                else Rd = Rs1.udw / Rs2_or_imm13.udw;}}
                ,{{0}},{{0}},{{0}},{{0}});
            0x1E: udivcc({{
                uint32_t resTemp, val2 = Rs2_or_imm13.udw;
                int32_t overflow;
                if(val2 == 0) fault = new DivisionByZero;
                else
                {
                    resTemp = (uint64_t)((Y << 32) | Rs1.udw<31:0>) / val2;
                    overflow = (resTemp<63:32> != 0);
                    if(overflow) Rd = resTemp = 0xFFFFFFFF;
                    else Rd = resTemp;
                } }},
                {{0}},
                {{overflow}},
                {{0}},
                {{0}}
            );
            0x1F: sdivcc({{
                int32_t resTemp, val2 = Rs2_or_imm13.sdw;
                int32_t overflow, underflow;
                if(val2 == 0) fault = new DivisionByZero;
                else
                {
                    Rd = resTemp = (int64_t)((Y << 32) | Rs1.sdw<31:0>) / val2;
                    overflow = (resTemp<63:31> != 0);
                    underflow = (resTemp<63:> && resTemp<62:31> != 0xFFFFFFFF);
                    if(overflow) Rd = resTemp = 0x7FFFFFFF;
                    else if(underflow) Rd = resTemp = 0xFFFFFFFF80000000ULL;
                    else Rd = resTemp;
                } }},
                {{0}},
                {{overflow || underflow}},
                {{0}},
                {{0}}
            );
            0x20: taddcc({{
                int64_t resTemp, val2 = Rs2_or_imm13;
                Rd = resTemp = Rs1 + val2;
                int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);}},
                {{((Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31)}},
                {{overflow}},
                {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
                {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
            );
            0x21: tsubcc({{
                int64_t resTemp, val2 = Rs2_or_imm13;
                Rd = resTemp = Rs1 + val2;
                int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);}},
                {{(Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31}},
                {{overflow}},
                {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
                {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
            );
            0x22: taddcctv({{
                int64_t resTemp, val2 = Rs2_or_imm13;
                Rd = Rs1 + val2;
                int32_t overflow = Rs1<1:0> || val2<1:0> ||
                        (Rs1<31:> == val2<31:> && val2<31:> != Rd<31:>);
                if(overflow) fault = new TagOverflow;}},
                {{((Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31)}},
                {{overflow}},
                {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
                {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
            );
            0x23: tsubcctv({{
                int64_t resTemp, val2 = Rs2_or_imm13;
                Rd = resTemp = Rs1 + val2;
                int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);
                if(overflow) fault = new TagOverflow;}},
                {{((Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31)}},
                {{overflow}},
                {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
                {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
            );
            0x24: mulscc({{
                int64_t resTemp, multiplicand = Rs2_or_imm13;
                int32_t multiplier = Rs1<31:0>;
                int32_t savedLSB = Rs1<0:>;
                multiplier = multiplier<31:1> |
                    ((Ccr<3:3>
                    ^ Ccr<1:1>) << 32);
                if(!Y<0:>)
                    multiplicand = 0;
                Rd = resTemp = multiplicand + multiplier;
                Y = Y<31:1> | (savedLSB << 31);}},
                {{((multiplicand & 0xFFFFFFFF + multiplier & 0xFFFFFFFF) >> 31)}},
                {{multiplicand<31:> == multiplier<31:> && multiplier<31:> != resTemp<31:>}},
                {{((multiplicand >> 1) + (multiplier >> 1) + (multiplicand & multiplier & 0x1))<63:>}},
                {{multiplicand<63:> == multiplier<63:> && multiplier<63:> != resTemp<63:>}}
            );
        }
        format IntOp
        {
            0x25: decode X {
                0x0: sll({{Rd = Rs1 << (I ? SHCNT32 : Rs2<4:0>);}});
                0x1: sllx({{Rd = Rs1 << (I ? SHCNT64 : Rs2<5:0>);}});
            }
            0x26: decode X {
                0x0: srl({{Rd = Rs1.uw >> (I ? SHCNT32 : Rs2<4:0>);}});
                0x1: srlx({{Rd = Rs1.udw >> (I ? SHCNT64 : Rs2<5:0>);}});
            }
            0x27: decode X {
                0x0: sra({{Rd = Rs1.sw >> (I ? SHCNT32 : Rs2<4:0>);}});
                0x1: srax({{Rd = Rs1.sdw >> (I ? SHCNT64 : Rs2<5:0>);}});
            }
            // XXX might want a format rdipr thing here
            0x28: decode RS1 {
                0xF: decode I {
                    0x0: Nop::stbar({{/*stuff*/}});
                    0x1: Nop::membar({{/*stuff*/}});
                }
                default: rdasr({{
                Rd = xc->readMiscRegWithEffect(RS1 + AsrStart, fault);
                }});
            }
            0x29: HPriv::rdhpr({{
                // XXX Need to protect with format that traps non-priv/priv
                // access
                Rd = xc->readMiscRegWithEffect(RS1 + HprStart, fault);
            }});
            0x2A: Priv::rdpr({{
                // XXX Need to protect with format that traps non-priv
                // access
                Rd = xc->readMiscRegWithEffect(RS1 + PrStart, fault);
            }});
            0x2B: BasicOperate::flushw({{
                if(NWindows - 2 - Cansave == 0)
                {
                    if(Otherwin)
                        fault = new SpillNOther(Wstate<5:3>);
                    else
                        fault = new SpillNNormal(Wstate<2:0>);
                }
            }});
            0x2C: decode MOVCC3
            {
                0x0: Trap::movccfcc({{fault = new FpDisabled;}});
                0x1: decode CC
                {
                    0x0: movcci({{
                        if(passesCondition(Ccr<3:0>, COND4))
                            Rd = Rs2_or_imm11;
                        else
                            Rd = Rd;
                    }});
                    0x2: movccx({{
                        if(passesCondition(Ccr<7:4>, COND4))
                            Rd = Rs2_or_imm11;
                        else
                            Rd = Rd;
                    }});
                }
            }
            0x2D: sdivx({{
                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;
                }});
            }
            0x2F: decode RCOND3
            {
                0x1: movreq({{Rd = (Rs1.sdw == 0) ? Rs2_or_imm10 : Rd;}});
                0x2: movrle({{Rd = (Rs1.sdw <= 0) ? Rs2_or_imm10 : Rd;}});
                0x3: movrl({{Rd = (Rs1.sdw < 0) ? Rs2_or_imm10 : Rd;}});
                0x5: movrne({{Rd = (Rs1.sdw != 0) ? Rs2_or_imm10 : Rd;}});
                0x6: movrg({{Rd = (Rs1.sdw > 0) ? Rs2_or_imm10 : Rd;}});
                0x7: movrge({{Rd = (Rs1.sdw >= 0) ? Rs2_or_imm10 : Rd;}});
            }
            0x30: wrasr({{
                xc->setMiscRegWithEffect(RD + AsrStart, Rs1 ^ Rs2_or_imm13);
            }});
            0x31: decode FCN {
                0x0: BasicOperate::saved({{/*Boogy Boogy*/}});
                0x1: BasicOperate::restored({{/*Boogy Boogy*/}});
            }
            0x32: Priv::wrpr({{
                // XXX Need to protect with format that traps non-priv
                // access
                fault = xc->setMiscRegWithEffect(RD + PrStart, Rs1 ^ Rs2_or_imm13);
            }});
            0x33: HPriv::wrhpr({{
                // XXX Need to protect with format that traps non-priv/priv
                // access
                fault = xc->setMiscRegWithEffect(RD + HprStart, Rs1 ^ Rs2_or_imm13);
            }});
            0x34: decode OPF{
                format BasicOperate{
                    0x01: fmovs({{
                        Frd.sf = Frs2.sf;
                        //fsr.ftt = fsr.cexc = 0
                        Fsr &= ~(7 << 14);
                        Fsr &= ~(0x1F);
                    }});
                    0x02: fmovd({{
                        Frd.df = Frs2.df;
                        //fsr.ftt = fsr.cexc = 0
                        Fsr &= ~(7 << 14);
                        Fsr &= ~(0x1F);
                    }});
                    0x03: Trap::fmovq({{fault = new FpDisabled;}});
                    0x05: fnegs({{
                        //XXX might want to explicitly flip the sign bit
                        //So cases with Nan and +/-0 don't do weird things
                        Frd.sf = -Frs2.sf;
                        //fsr.ftt = fsr.cexc = 0
                        Fsr &= ~(7 << 14);
                        Fsr &= ~(0x1F);
                    }});
                    0x06: fnegd({{
                        //XXX might want to explicitly flip the sign bit
                        //So cases with Nan and +/-0 don't do weird things
                        Frd.df = -Frs2.df;
                        //fsr.ftt = fsr.cexc = 0
                        Fsr &= ~(7 << 14);
                        Fsr &= ~(0x1F);
                    }});
                    0x07: Trap::fnegq({{fault = new FpDisabled;}});
                    0x09: fabss({{
                        //XXX this instruction should be tested individually
                        //Clear the sign bit
                        Frd.sf = (float)(~(1 << 31) & ((uint32_t)Frs2.sf));
                        //fsr.ftt = fsr.cexc = 0
                        Fsr &= ~(7 << 14);
                        Fsr &= ~(0x1F);
                    }});
                    0x0A: fabsd({{
                        //XXX this instruction should be tested individually
                        //Clear the sign bit
                        Frd.df = (float)(~((uint64_t)1 << 63) & ((uint64_t)Frs2.df));
                        //fsr.ftt = fsr.cexc = 0
                        Fsr &= ~(7 << 14);
                        Fsr &= ~(0x1F);
                    }});
                    0x0B: Trap::fabsq({{fault = new FpDisabled;}});
                    0x29: fsqrts({{Frd.sf = sqrt(Frs2.sf);}});
                    0x2A: fsqrtd({{Frd.df = sqrt(Frs2.df);}});
                    0x2B: Trap::fsqrtq({{fault = new FpDisabled;}});
                    0x41: fadds({{Frd.sf = Frs1.sf + Frs2.sf;}});
                    0x42: faddd({{Frd.df = Frs1.df + Frs2.df;}});
                    0x43: Trap::faddq({{fault = new FpDisabled;}});
                    0x45: fsubs({{Frd.sf = Frs1.sf - Frs2.sf;}});
                    0x46: fsubd({{Frd.df = Frs1.df - Frs2.df;}});
                    0x47: Trap::fsubq({{fault = new FpDisabled;}});
                    0x49: fmuls({{Frd.sf = Frs1.sf * Frs2.sf;}});
                    0x4A: fmuld({{Frd.df = Frs1.df * Frs2.df;}});
                    0x4B: Trap::fmulq({{fault = new FpDisabled;}});
                    0x4D: fdivs({{Frd.sf = Frs1.sf / Frs2.sf;}});
                    0x4E: fdivd({{Frd.df = Frs1.df / Frs2.df;}});
                    0x4F: Trap::fdivq({{fault = new FpDisabled;}});
                    0x69: fsmuld({{Frd.df = Frs1.sf * Frs2.sf;}});
                    0x6E: Trap::fdmulq({{fault = new FpDisabled;}});
                    0x81: fstox({{
                            Frd.df = (double)static_cast<int64_t>(Frs2.sf);
                    }});
                    0x82: fdtox({{
                            Frd.df = (double)static_cast<int64_t>(Frs2.df);
                    }});
                    0x83: Trap::fqtox({{fault = new FpDisabled;}});
                    0x84: fxtos({{
                            Frd.sf = static_cast<float>((int64_t)Frs2.df);
                    }});
                    0x88: fxtod({{
                            Frd.df = static_cast<double>((int64_t)Frs2.df);
                    }});
                    0x8C: Trap::fxtoq({{fault = new FpDisabled;}});
                    0xC4: fitos({{
                            Frd.sf = static_cast<float>((int32_t)Frs2.sf);
                    }});
                    0xC6: fdtos({{Frd.sf = Frs2.df;}});
                    0xC7: Trap::fqtos({{fault = new FpDisabled;}});
                    0xC8: fitod({{
                            Frd.df = static_cast<double>((int32_t)Frs2.sf);
                    }});
                    0xC9: fstod({{Frd.df = Frs2.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;}});
                    0xD1: fstoi({{
                            Frd.sf = (float)static_cast<int32_t>(Frs2.sf);
                    }});
                    0xD2: fdtoi({{
                            Frd.sf = (float)static_cast<int32_t>(Frs2.df);
                    }});
                    0xD3: Trap::fqtoi({{fault = new FpDisabled;}});
                    default: Trap::fpop1({{fault = new FpDisabled;}});
                }
            }
            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;}});
                0x18: BasicOperate::alignaddress({{
                    uint64_t sum = Rs1 + Rs2;
                    Frd = sum & ~7;
                    Gsr = (Gsr & ~7) | (sum & 7);
                }});
                0x19: Trap::bmask({{fault = new IllegalInstruction;}});
                0x1A: BasicOperate::alignaddresslittle({{
                    uint64_t sum = Rs1 + Rs2;
                    Frd = 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;}});
                0x3A: Trap::fpack32({{fault = new IllegalInstruction;}});
                0x3B: Trap::fpack16({{fault = new IllegalInstruction;}});
                0x3D: Trap::fpackfix({{fault = new IllegalInstruction;}});
                0x3E: Trap::pdist({{fault = new IllegalInstruction;}});
                0x48: BasicOperate::faligndata({{
                        uint64_t msbX = (uint64_t)Frs1;
                        uint64_t lsbX = (uint64_t)Frs2;
                        uint64_t msbShift = Gsr<2:0> * 8;
                        uint64_t lsbShift = (8 - Gsr<2:0>) * 8;
                        uint64_t msbMask = ((uint64_t)(-1)) << msbShift;
                        uint64_t lsbMask = ((uint64_t)(-1)) << lsbShift;
                        Frd = ((msbX << msbShift) & msbMask) |
                                ((lsbX << lsbShift) & lsbMask);
                }});
                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;}});
                0x60: BasicOperate::fzero({{Frd.df = 0;}});
                0x61: BasicOperate::fzeros({{Frd.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;}});
                0x66: BasicOperate::fnot2({{
                        Frd.df = (double)(~((uint64_t)Frs2.df));
                }});
                0x67: BasicOperate::fnot2s({{
                        Frd.sf = (float)(~((uint32_t)Frs2.sf));
                }});
                0x68: Trap::fandnot1({{fault = new IllegalInstruction;}});
                0x69: Trap::fandnot1s({{fault = new IllegalInstruction;}});
                0x6A: BasicOperate::fnot1({{
                        Frd.df = (double)(~((uint64_t)Frs1.df));
                }});
                0x6B: BasicOperate::fnot1s({{
                        Frd.sf = (float)(~((uint32_t)Frs1.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;}});
                0x74: BasicOperate::fsrc1({{Frd.df = Frs1.df;}});
                0x75: BasicOperate::fsrc1s({{Frd.sf = Frs1.sf;}});
                0x76: Trap::fornot2({{fault = new IllegalInstruction;}});
                0x77: Trap::fornot2s({{fault = new IllegalInstruction;}});
                0x78: BasicOperate::fsrc2({{Frd.df = Frs2.df;}});
                0x79: BasicOperate::fsrc2s({{Frd.sf = Frs2.sf;}});
                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;}});
                0x80: Trap::shutdown({{fault = new IllegalInstruction;}});
                0x81: Trap::siam({{fault = new IllegalInstruction;}});
            }
            0x37: Trap::impdep2({{fault = new IllegalInstruction;}});
            0x38: Branch::jmpl({{
                Addr target = Rs1 + Rs2_or_imm13;
                if(target & 0x3)
                    fault = new MemAddressNotAligned;
                else
                {
                    Rd = xc->readPC();
                    NNPC = target;
                }
            }});
            0x39: Branch::return({{
                //If both MemAddressNotAligned and
                //a fill trap happen, it's not clear
                //which one should be returned.
                Addr target = Rs1 + Rs2_or_imm13;
                if(target & 0x3)
                    fault = new MemAddressNotAligned;
                else
                    NNPC = target;
                if(fault == NoFault)
                {
                    //CWP should be set directly so that it always happens
                    //Also, this will allow writing to the new window and
                    //reading from the old one
                    Cwp = (Cwp - 1 + NWindows) % NWindows;
                    if(Canrestore == 0)
                    {
                        if(Otherwin)
                            fault = new FillNOther(Wstate<5:3>);
                        else
                            fault = new FillNNormal(Wstate<2:0>);
                    }
                    else
                    {
                        Rd = Rs1 + Rs2_or_imm13;
                        Cansave = Cansave + 1;
                        Canrestore = Canrestore - 1;
                    }
                    //This is here to make sure the CWP is written
                    //no matter what. This ensures that the results
                    //are written in the new window as well.
                    xc->setMiscRegWithEffect(MISCREG_CWP, Cwp);
                }
            }});
            0x3A: decode CC
            {
                0x0: Trap::tcci({{
                    if(passesCondition(Ccr<3:0>, COND2))
                    {
                        int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
                        DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
#if FULL_SYSTEM
                        fault = new TrapInstruction(lTrapNum);
#else
                        DPRINTF(Sparc, "The syscall number is %d\n", R1);
                        xc->syscall(R1);
#endif
                    }
                }});
                0x2: Trap::tccx({{
                    if(passesCondition(Ccr<7:4>, COND2))
                    {
                        int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
                        DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
#if FULL_SYSTEM
                        fault = new TrapInstruction(lTrapNum);
#else
                        DPRINTF(Sparc, "The syscall number is %d\n", R1);
                        xc->syscall(R1);
#endif
                    }
                }});
            }
            0x3B: Nop::flush({{/*Instruction memory flush*/}});
            0x3C: save({{
                //CWP should be set directly so that it always happens
                //Also, this will allow writing to the new window and
                //reading from the old one
                if(Cansave == 0)
                {
                    if(Otherwin)
                        fault = new SpillNOther(Wstate<5:3>);
                    else
                        fault = new SpillNNormal(Wstate<2:0>);
                    Cwp = (Cwp + 2) % NWindows;
                }
                else if(Cleanwin - Canrestore == 0)
                {
                    Cwp = (Cwp + 1) % NWindows;
                    fault = new CleanWindow;
                }
                else
                {
                    Cwp = (Cwp + 1) % NWindows;
                    Rd = Rs1 + Rs2_or_imm13;
                    Cansave = Cansave - 1;
                    Canrestore = Canrestore + 1;
                }
                //This is here to make sure the CWP is written
                //no matter what. This ensures that the results
                //are written in the new window as well.
                xc->setMiscRegWithEffect(MISCREG_CWP, Cwp);
            }});
            0x3D: restore({{
                //CWP should be set directly so that it always happens
                //Also, this will allow writing to the new window and
                //reading from the old one
                Cwp = (Cwp - 1 + NWindows) % NWindows;
                if(Canrestore == 0)
                {
                    if(Otherwin)
                        fault = new FillNOther(Wstate<5:3>);
                    else
                        fault = new FillNNormal(Wstate<2:0>);
                }
                else
                {
                    Rd = Rs1 + Rs2_or_imm13;
                    Cansave = Cansave + 1;
                    Canrestore = Canrestore - 1;
                }
                //This is here to make sure the CWP is written
                //no matter what. This ensures that the results
                //are written in the new window as well.
                xc->setMiscRegWithEffect(MISCREG_CWP, Cwp);
            }});
            0x3E: decode FCN {
                0x0: Priv::done({{
                    if(Tl == 0)
                        return new IllegalInstruction;

                    Cwp = Tstate<4:0>;
                    Pstate = Tstate<20:8>;
                    Asi = Tstate<31:24>;
                    Ccr = Tstate<39:32>;
                    Gl = Tstate<42:40>;
                    NPC = Tnpc;
                    NNPC = Tnpc + 4;
                    Tl = Tl - 1;
                }});
                0x1: Priv::retry({{
                    if(Tl == 0)
                        return new IllegalInstruction;
                    Cwp = Tstate<4:0>;
                    Pstate = Tstate<20:8>;
                    Asi = Tstate<31:24>;
                    Ccr = Tstate<39:32>;
                    Gl = Tstate<42:40>;
                    NPC = Tpc;
                    NNPC = Tnpc + 4;
                    Tl = Tl - 1;
                }});
            }
        }
    }
    0x3: decode OP3 {
        format Load {
            0x00: lduw({{Rd = Mem;}}, {{32}});
            0x01: ldub({{Rd = Mem;}}, {{8}});
            0x02: lduh({{Rd = Mem;}}, {{16}});
            0x03: ldd({{
                uint64_t val = Mem;
                RdLow = val<31:0>;
                RdHigh = val<63:32>;
            }}, {{64}});
        }
        format Store {
            0x04: stw({{Mem = Rd.sw;}}, {{32}});
            0x05: stb({{Mem = Rd.sb;}}, {{8}});
            0x06: sth({{Mem = Rd.shw;}}, {{16}});
            0x07: std({{Mem = RdLow<31:0> | RdHigh<31:0> << 32;}}, {{64}});
        }
        format Load {
            0x08: ldsw({{Rd = (int32_t)Mem;}}, {{32}});
            0x09: ldsb({{Rd = (int8_t)Mem;}}, {{8}});
            0x0A: ldsh({{Rd = (int16_t)Mem;}}, {{16}});
            0x0B: ldx({{Rd = (int64_t)Mem;}}, {{64}});
            0x0D: ldstub({{
                Rd = Mem;
                Mem = 0xFF;
            }}, {{8}});
        }
        0x0E: Store::stx({{Mem = Rd}}, {{64}});
        0x0F: LoadStore::swap({{
            uint32_t temp = Rd;
            Rd = Mem;
            Mem = temp;
        }}, {{32}});
        format Load {
            0x10: lduwa({{Rd = Mem;}}, {{32}});
            0x11: lduba({{Rd = Mem;}}, {{8}});
            0x12: lduha({{Rd = Mem;}}, {{16}});
            0x13: ldda({{
                uint64_t val = Mem;
                RdLow = val<31:0>;
                RdHigh = val<63:32>;
            }}, {{64}});
        }
        format Store {
            0x14: stwa({{Mem = Rd;}}, {{32}});
            0x15: stba({{Mem = Rd;}}, {{8}});
            0x16: stha({{Mem = Rd;}}, {{16}});
            0x17: stda({{Mem = RdLow<31:0> | RdHigh<31:0> << 32;}}, {{64}});
        }
        format Load {
            0x18: ldswa({{Rd = (int32_t)Mem;}}, {{32}});
            0x19: ldsba({{Rd = (int8_t)Mem;}}, {{8}});
            0x1A: ldsha({{Rd = (int16_t)Mem;}}, {{16}});
            0x1B: ldxa({{Rd = (int64_t)Mem;}}, {{64}});
        }
        0x1D: LoadStore::ldstuba({{
            Rd = Mem;
            Mem = 0xFF;
        }}, {{8}});
        0x1E: Store::stxa({{Mem = Rd}}, {{64}});
        0x1F: LoadStore::swapa({{
            uint32_t temp = Rd;
            Rd = Mem;
            Mem = temp;
        }}, {{32}});
        format Trap {
            0x20: Load::ldf({{Frd.sf = ((float)Mem);}}, {{32}});
            0x21: decode X {
                0x0: Load::ldfsr({{Fsr = Mem<31:0> | Fsr<63:32>;}}, {{32}});
                0x1: Load::ldxfsr({{Fsr = Mem;}}, {{64}});
            }
            0x22: ldqf({{fault = new FpDisabled;}});
            0x23: Load::lddf({{Frd.df = ((double)Mem);}}, {{64}});
            0x24: Store::stf({{Mem = ((int32_t)Frd.sf);}}, {{32}});
            0x25: decode X {
                0x0: Store::stfsr({{Mem = Fsr<31:0>;}}, {{32}});
                0x1: Store::stxfsr({{Mem = Fsr;}}, {{64}});
            }
            0x26: stqf({{fault = new FpDisabled;}});
            0x27: Store::stdf({{Mem = ((int64_t)Frd.df);}}, {{64}});
            0x2D: Nop::prefetch({{ }});
            0x30: Load::ldfa({{Frd.sf = ((float)Mem);}}, {{32}});
            0x32: ldqfa({{fault = new FpDisabled;}});
            0x33: Load::lddfa({{Frd.df = ((double)Mem);}}, {{64}});
            0x34: Store::stfa({{Mem = ((int32_t)Frd.sf);}}, {{32}});
            0x36: stqfa({{fault = new FpDisabled;}});
            //XXX need to work in the ASI thing
            0x37: Store::stdfa({{Mem = ((uint64_t)Frd.df);}}, {{64}});
            0x3C: Cas::casa({{
                uint64_t val = Mem.uw;
                if(Rs2.uw == val)
                        Mem.uw = Rd.uw;
                Rd.uw = val;
            }});
            0x3D: Nop::prefetcha({{ }});
            0x3E: Cas::casxa({{
                uint64_t val = Mem.udw;
                if(Rs2 == val)
                        Mem.udw = Rd;
                Rd = val;
            }});
        }
    }
}