| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2007 MIPS Technologies, Inc. |
| // 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: Korey Sewell |
| // Brett Miller |
| // Jaidev Patwardhan |
| |
| //////////////////////////////////////////////////////////////////// |
| // |
| // The actual MIPS32 ISA decoder |
| // ----------------------------- |
| // The following instructions are specified in the MIPS32 ISA |
| // Specification. Decoding closely follows the style specified |
| // in the MIPS32 ISA specification document starting with Table |
| // A-2 (document available @ http://www.mips.com) |
| // |
| decode OPCODE_HI default Unknown::unknown() { |
| //Table A-2 |
| 0x0: decode OPCODE_LO { |
| 0x0: decode FUNCTION_HI { |
| 0x0: decode FUNCTION_LO { |
| 0x1: decode MOVCI { |
| format BasicOp { |
| 0: movf({{ Rd = (getCondCode(FCSR, CC) == 0) ? Rd : Rs; }}); |
| 1: movt({{ Rd = (getCondCode(FCSR, CC) == 1) ? Rd : Rs; }}); |
| } |
| } |
| |
| format BasicOp { |
| //Table A-3 Note: "Specific encodings of the rd, rs, and |
| //rt fields are used to distinguish SLL, SSNOP, and EHB |
| //functions |
| 0x0: decode RS { |
| 0x0: decode RT_RD { |
| 0x0: decode SA default Nop::nop() { |
| 0x1: ssnop({{;}}); |
| 0x3: ehb({{;}}); |
| } |
| default: sll({{ Rd = Rt.uw << SA; }}); |
| } |
| } |
| |
| 0x2: decode RS_SRL { |
| 0x0:decode SRL { |
| 0: srl({{ Rd = Rt.uw >> SA; }}); |
| |
| //Hardcoded assuming 32-bit ISA, probably need parameter here |
| 1: rotr({{ Rd = (Rt.uw << (32 - SA)) | (Rt.uw >> SA);}}); |
| } |
| } |
| |
| 0x3: decode RS { |
| 0x0: sra({{ |
| uint32_t temp = Rt >> SA; |
| if ( (Rt & 0x80000000) > 0 ) { |
| uint32_t mask = 0x80000000; |
| for(int i=0; i < SA; i++) { |
| temp |= mask; |
| mask = mask >> 1; |
| } |
| } |
| Rd = temp; |
| }}); |
| } |
| |
| 0x4: sllv({{ Rd = Rt.uw << Rs<4:0>; }}); |
| |
| 0x6: decode SRLV { |
| 0: srlv({{ Rd = Rt.uw >> Rs<4:0>; }}); |
| |
| //Hardcoded assuming 32-bit ISA, probably need parameter here |
| 1: rotrv({{ Rd = (Rt.uw << (32 - Rs<4:0>)) | (Rt.uw >> Rs<4:0>);}}); |
| } |
| |
| 0x7: srav({{ |
| int shift_amt = Rs<4:0>; |
| |
| uint32_t temp = Rt >> shift_amt; |
| |
| if ( (Rt & 0x80000000) > 0 ) { |
| uint32_t mask = 0x80000000; |
| for(int i=0; i < shift_amt; i++) { |
| temp |= mask; |
| mask = mask >> 1; |
| } |
| } |
| |
| Rd = temp; |
| }}); |
| } |
| } |
| |
| 0x1: decode FUNCTION_LO { |
| //Table A-3 Note: "Specific encodings of the hint field are |
| //used to distinguish JR from JR.HB and JALR from JALR.HB" |
| format Jump { |
| 0x0: decode HINT { |
| 0x1: jr_hb({{ if(Config1_CA == 0){NNPC = Rs;}else{panic("MIPS16e not supported\n");}; }}, IsReturn, ClearHazards); |
| default: jr({{ if(Config1_CA == 0){NNPC = Rs;}else{panic("MIPS16e not supported\n");};}}, IsReturn); |
| } |
| |
| 0x1: decode HINT { |
| 0x1: jalr_hb({{ Rd = NNPC; NNPC = Rs; }}, IsCall |
| , ClearHazards); |
| default: jalr({{ Rd = NNPC; NNPC = Rs; }}, IsCall); |
| } |
| } |
| |
| format BasicOp { |
| 0x2: movz({{ Rd = (Rt == 0) ? Rs : Rd; }}); |
| 0x3: movn({{ Rd = (Rt != 0) ? Rs : Rd; }}); |
| #if FULL_SYSTEM |
| 0x4: syscall({{ |
| fault = new SystemCallFault(); |
| }}); |
| #else |
| 0x4: syscall({{ xc->syscall(R2); }}, |
| IsSerializing, IsNonSpeculative); |
| #endif |
| 0x7: sync({{ ; }}, IsMemBarrier); |
| 0x5: break({{fault = new BreakpointFault();}}); |
| } |
| |
| } |
| |
| 0x2: decode FUNCTION_LO { |
| 0x0: HiLoRsSelOp::mfhi({{ Rd = HI_RS_SEL; }}, IntMultOp, IsIprAccess); |
| 0x1: HiLoRdSelOp::mthi({{ HI_RD_SEL = Rs; }}); |
| 0x2: HiLoRsSelOp::mflo({{ Rd = LO_RS_SEL; }}, IntMultOp, IsIprAccess); |
| 0x3: HiLoRdSelOp::mtlo({{ LO_RD_SEL = Rs; }}); |
| } |
| |
| 0x3: decode FUNCTION_LO { |
| format HiLoRdSelValOp { |
| 0x0: mult({{ val = Rs.sd * Rt.sd; }}, IntMultOp); |
| 0x1: multu({{ val = Rs.ud * Rt.ud; }}, IntMultOp); |
| } |
| |
| format HiLoOp { |
| 0x2: div({{ if (Rt.sd != 0) { |
| HI0 = Rs.sd % Rt.sd; |
| LO0 = Rs.sd / Rt.sd; |
| } |
| }}, IntDivOp); |
| |
| 0x3: divu({{ if (Rt.ud != 0) { |
| HI0 = Rs.ud % Rt.ud; |
| LO0 = Rs.ud / Rt.ud; |
| } |
| }}, IntDivOp); |
| } |
| } |
| |
| 0x4: decode HINT { |
| 0x0: decode FUNCTION_LO { |
| format IntOp { |
| 0x0: add({{ /* More complicated since an ADD can cause an arithmetic overflow exception */ |
| int64_t Src1 = Rs.sw; |
| int64_t Src2 = Rt.sw; |
| int64_t temp_result; |
| #if FULL_SYSTEM |
| if(((Src1 >> 31) & 1) == 1) |
| Src1 |= 0x100000000LL; |
| #endif |
| temp_result = Src1 + Src2; |
| #if FULL_SYSTEM |
| if(((temp_result >> 31) & 1) == ((temp_result >> 32) & 1)){ |
| #endif |
| Rd.sw = temp_result; |
| #if FULL_SYSTEM |
| } else{ |
| fault = new ArithmeticFault(); |
| } |
| #endif |
| |
| }}); |
| 0x1: addu({{ Rd.sw = Rs.sw + Rt.sw;}}); |
| 0x2: sub({{ |
| /* More complicated since an SUB can cause an arithmetic overflow exception */ |
| int64_t Src1 = Rs.sw; |
| int64_t Src2 = Rt.sw; |
| int64_t temp_result = Src1 - Src2; |
| #if FULL_SYSTEM |
| if(((temp_result >> 31) & 1) == ((temp_result>>32) & 1)){ |
| #endif |
| Rd.sw = temp_result; |
| #if FULL_SYSTEM |
| } else{ |
| fault = new ArithmeticFault(); |
| } |
| #endif |
| }}); |
| 0x3: subu({{ Rd.sw = Rs.sw - Rt.sw;}}); |
| 0x4: and({{ Rd = Rs & Rt;}}); |
| 0x5: or({{ Rd = Rs | Rt;}}); |
| 0x6: xor({{ Rd = Rs ^ Rt;}}); |
| 0x7: nor({{ Rd = ~(Rs | Rt);}}); |
| } |
| } |
| } |
| |
| 0x5: decode HINT { |
| 0x0: decode FUNCTION_LO { |
| format IntOp{ |
| 0x2: slt({{ Rd.sw = ( Rs.sw < Rt.sw ) ? 1 : 0}}); |
| 0x3: sltu({{ Rd.uw = ( Rs.uw < Rt.uw ) ? 1 : 0}}); |
| } |
| } |
| } |
| |
| 0x6: decode FUNCTION_LO { |
| format Trap { |
| 0x0: tge({{ cond = (Rs.sw >= Rt.sw); }}); |
| 0x1: tgeu({{ cond = (Rs.uw >= Rt.uw); }}); |
| 0x2: tlt({{ cond = (Rs.sw < Rt.sw); }}); |
| 0x3: tltu({{ cond = (Rs.uw < Rt.uw); }}); |
| 0x4: teq({{ cond = (Rs.sw == Rt.sw); }}); |
| 0x6: tne({{ cond = (Rs.sw != Rt.sw); }}); |
| } |
| } |
| } |
| |
| 0x1: decode REGIMM_HI { |
| 0x0: decode REGIMM_LO { |
| format Branch { |
| 0x0: bltz({{ cond = (Rs.sw < 0); }}); |
| 0x1: bgez({{ cond = (Rs.sw >= 0); }}); |
| 0x2: bltzl({{ cond = (Rs.sw < 0); }}, Likely); |
| 0x3: bgezl({{ cond = (Rs.sw >= 0); }}, Likely); |
| } |
| } |
| |
| 0x1: decode REGIMM_LO { |
| format TrapImm { |
| 0x0: tgei( {{ cond = (Rs.sw >= (int16_t)INTIMM); }}); |
| 0x1: tgeiu({{ cond = (Rs.uw >= (uint32_t)((int32_t)((int16_t)INTIMM))); }}); |
| 0x2: tlti( {{ cond = (Rs.sw < (int16_t)INTIMM); }}); |
| 0x3: tltiu({{ cond = (Rs.uw < (uint32_t)((int32_t)((int16_t)INTIMM))); }}); |
| 0x4: teqi( {{ cond = (Rs.sw == (int16_t)INTIMM);}}); |
| 0x6: tnei( {{ cond = (Rs.sw != (int16_t)INTIMM);}}); |
| } |
| } |
| |
| 0x2: decode REGIMM_LO { |
| format Branch { |
| 0x0: bltzal({{ cond = (Rs.sw < 0); }}, Link); |
| 0x1: decode RS { |
| 0x0: bal ({{ cond = 1; }}, IsCall, Link); |
| default: bgezal({{ cond = (Rs.sw >= 0); }}, Link); |
| } |
| 0x2: bltzall({{ cond = (Rs.sw < 0); }}, Link, Likely); |
| 0x3: bgezall({{ cond = (Rs.sw >= 0); }}, Link, Likely); |
| } |
| } |
| |
| 0x3: decode REGIMM_LO { |
| // from Table 5-4 MIPS32 REGIMM Encoding of rt Field (DSP ASE MANUAL) |
| 0x4: DspBranch::bposge32({{ cond = (dspctl<5:0> >= 32); }}); |
| format WarnUnimpl { |
| 0x7: synci(); |
| } |
| } |
| } |
| |
| format Jump { |
| 0x2: j({{ NNPC = (NPC & 0xF0000000) | (JMPTARG << 2);}}); |
| 0x3: jal({{ NNPC = (NPC & 0xF0000000) | (JMPTARG << 2); }}, IsCall, |
| Link); |
| } |
| |
| format Branch { |
| 0x4: decode RS_RT { |
| 0x0: b({{ cond = 1; }}); |
| default: beq({{ cond = (Rs.sw == Rt.sw); }}); |
| } |
| 0x5: bne({{ cond = (Rs.sw != Rt.sw); }}); |
| 0x6: blez({{ cond = (Rs.sw <= 0); }}); |
| 0x7: bgtz({{ cond = (Rs.sw > 0); }}); |
| } |
| } |
| |
| 0x1: decode OPCODE_LO { |
| format IntImmOp { |
| 0x0: addi({{ |
| int64_t Src1 = Rs.sw; |
| int64_t Src2 = imm; |
| int64_t temp_result; |
| #if FULL_SYSTEM |
| if(((Src1 >> 31) & 1) == 1) |
| Src1 |= 0x100000000LL; |
| #endif |
| temp_result = Src1 + Src2; |
| #if FULL_SYSTEM |
| if(((temp_result >> 31) & 1) == ((temp_result >> 32) & 1)){ |
| #endif |
| Rt.sw = temp_result; |
| #if FULL_SYSTEM |
| } else{ |
| fault = new ArithmeticFault(); |
| } |
| #endif |
| }}); |
| 0x1: addiu({{ Rt.sw = Rs.sw + imm;}}); |
| 0x2: slti({{ Rt.sw = ( Rs.sw < imm) ? 1 : 0 }}); |
| |
| //Edited to include MIPS AVP Pass/Fail instructions and |
| //default to the sltiu instruction |
| 0x3: decode RS_RT_INTIMM { |
| 0xabc1: BasicOp::fail({{ exitSimLoop("AVP/SRVP Test Failed"); }}); |
| 0xabc2: BasicOp::pass({{ exitSimLoop("AVP/SRVP Test Passed"); }}); |
| default: sltiu({{ Rt.uw = ( Rs.uw < (uint32_t)sextImm ) ? 1 : 0 }}); |
| } |
| |
| 0x4: andi({{ Rt.sw = Rs.sw & zextImm;}}); |
| 0x5: ori({{ Rt.sw = Rs.sw | zextImm;}}); |
| 0x6: xori({{ Rt.sw = Rs.sw ^ zextImm;}}); |
| |
| 0x7: decode RS { |
| 0x0: lui({{ Rt = imm << 16}}); |
| } |
| } |
| } |
| |
| 0x2: decode OPCODE_LO { |
| //Table A-11 MIPS32 COP0 Encoding of rs Field |
| 0x0: decode RS_MSB { |
| 0x0: decode RS { |
| format CP0Control { |
| 0x0: mfc0({{ Rt = CP0_RD_SEL; |
| /* Hack for PageMask */ |
| if(RD == 5) // PageMask |
| if(Config3_SP == 0 || PageGrain_ESP == 0) |
| Rt &= 0xFFFFE7FF; |
| }}); |
| 0x4: mtc0({{ CP0_RD_SEL = Rt; |
| |
| if(RD == 11) // Compare{ |
| if(Cause_TI == 1){ |
| Cause_TI = 0; |
| MiscReg cause = xc->readMiscRegNoEffect(MipsISA::Cause); |
| int Offset = 10; // corresponding to Cause_IP0 |
| Offset += ((IntCtl_IPTI) - 2); |
| replaceBits(cause,Offset,Offset,0); |
| xc->setMiscRegNoEffect(MipsISA::Cause,cause); |
| } |
| |
| }}); |
| } |
| format CP0Unimpl { |
| 0x1: dmfc0(); |
| 0x5: dmtc0(); |
| default: unknown(); |
| } |
| format MT_MFTR { // Decode MIPS MT MFTR instruction into sub-instructions |
| 0x8: decode MT_U { |
| 0x0: mftc0({{ data = xc->readRegOtherThread((RT << 3 | SEL) + |
| Ctrl_Base_DepTag); |
| }}); |
| 0x1: decode SEL { |
| 0x0: mftgpr({{ data = xc->readRegOtherThread(RT); }}); |
| 0x1: decode RT { |
| 0x0: mftlo_dsp0({{ data = xc->readRegOtherThread(MipsISA::DSPLo0); }}); |
| 0x1: mfthi_dsp0({{ data = xc->readRegOtherThread(MipsISA::DSPHi0); }}); |
| 0x2: mftacx_dsp0({{ data = xc->readRegOtherThread(MipsISA::DSPACX0); }}); |
| 0x4: mftlo_dsp1({{ data = xc->readRegOtherThread(MipsISA::DSPLo1); }}); |
| 0x5: mfthi_dsp1({{ data = xc->readRegOtherThread(MipsISA::DSPHi1); }}); |
| 0x6: mftacx_dsp1({{ data = xc->readRegOtherThread(MipsISA::DSPACX1); }}); |
| 0x8: mftlo_dsp2({{ data = xc->readRegOtherThread(MipsISA::DSPLo2); }}); |
| 0x9: mfthi_dsp2({{ data = xc->readRegOtherThread(MipsISA::DSPHi2); }}); |
| 0x10: mftacx_dsp2({{ data = xc->readRegOtherThread(MipsISA::DSPACX2); }}); |
| 0x12: mftlo_dsp3({{ data = xc->readRegOtherThread(MipsISA::DSPLo3); }}); |
| 0x13: mfthi_dsp3({{ data = xc->readRegOtherThread(MipsISA::DSPHi3); }}); |
| 0x14: mftacx_dsp3({{ data = xc->readRegOtherThread(MipsISA::DSPACX3); }}); |
| 0x16: mftdsp({{ data = xc->readRegOtherThread(MipsISA::DSPControl); }}); |
| default: CP0Unimpl::unknown(); |
| } |
| 0x2: decode MT_H { |
| 0x0: mftc1({{ data = xc->readRegOtherThread(RT + |
| FP_Base_DepTag); |
| }}); |
| 0x1: mfthc1({{ data = xc->readRegOtherThread(RT + |
| FP_Base_DepTag); |
| }}); |
| } |
| 0x3: cftc1({{ uint32_t fcsr_val = xc->readRegOtherThread(MipsISA::FCSR + |
| FP_Base_DepTag); |
| switch (RT) |
| { |
| case 0: |
| data = xc->readRegOtherThread(MipsISA::FIR + |
| Ctrl_Base_DepTag); |
| break; |
| case 25: |
| data = 0 | fcsr_val & 0xFE000000 >> 24 |
| | fcsr_val & 0x00800000 >> 23; |
| break; |
| case 26: |
| data = 0 | fcsr_val & 0x0003F07C; |
| break; |
| case 28: |
| data = 0 | fcsr_val & 0x00000F80 |
| | fcsr_val & 0x01000000 >> 21 |
| | fcsr_val & 0x00000003; |
| break; |
| case 31: |
| data = fcsr_val; |
| break; |
| default: |
| fatal("FP Control Value (%d) Not Valid"); |
| } |
| }}); |
| default: CP0Unimpl::unknown(); |
| } |
| } |
| } |
| |
| format MT_MTTR { // Decode MIPS MT MTTR instruction into sub-instructions |
| 0xC: decode MT_U { |
| 0x0: mttc0({{ xc->setRegOtherThread((RD << 3 | SEL) + Ctrl_Base_DepTag, |
| Rt); |
| }}); |
| 0x1: decode SEL { |
| 0x0: mttgpr({{ xc->setRegOtherThread(RD, Rt); }}); |
| 0x1: decode RT { |
| 0x0: mttlo_dsp0({{ xc->setRegOtherThread(MipsISA::DSPLo0, Rt); |
| }}); |
| 0x1: mtthi_dsp0({{ xc->setRegOtherThread(MipsISA::DSPHi0, |
| Rt); |
| }}); |
| 0x2: mttacx_dsp0({{ xc->setRegOtherThread(MipsISA::DSPACX0, |
| Rt); |
| }}); |
| 0x4: mttlo_dsp1({{ xc->setRegOtherThread(MipsISA::DSPLo1, |
| Rt); |
| }}); |
| 0x5: mtthi_dsp1({{ xc->setRegOtherThread(MipsISA::DSPHi1, |
| Rt); |
| }}); |
| 0x6: mttacx_dsp1({{ xc->setRegOtherThread(MipsISA::DSPACX1, |
| Rt); |
| }}); |
| 0x8: mttlo_dsp2({{ xc->setRegOtherThread(MipsISA::DSPLo2, |
| Rt); |
| }}); |
| 0x9: mtthi_dsp2({{ xc->setRegOtherThread(MipsISA::DSPHi2, |
| Rt); |
| }}); |
| 0x10: mttacx_dsp2({{ xc->setRegOtherThread(MipsISA::DSPACX2, |
| Rt); |
| }}); |
| 0x12: mttlo_dsp3({{ xc->setRegOtherThread(MipsISA::DSPLo3, |
| Rt); |
| }}); |
| 0x13: mtthi_dsp3({{ xc->setRegOtherThread(MipsISA::DSPHi3, |
| Rt); |
| }}); |
| 0x14: mttacx_dsp3({{ xc->setRegOtherThread(MipsISA::DSPACX3, Rt); |
| }}); |
| 0x16: mttdsp({{ xc->setRegOtherThread(MipsISA::DSPControl, Rt); }}); |
| default: CP0Unimpl::unknown(); |
| |
| } |
| 0x2: mttc1({{ uint64_t data = xc->readRegOtherThread(RD + |
| FP_Base_DepTag); |
| data = insertBits(data, top_bit, bottom_bit, Rt); |
| xc->setRegOtherThread(RD + FP_Base_DepTag, data); |
| }}); |
| 0x3: cttc1({{ uint32_t data; |
| switch (RD) |
| { |
| case 25: |
| data = 0 | (Rt.uw<7:1> << 25) // move 31...25 |
| | (FCSR & 0x01000000) // bit 24 |
| | (FCSR & 0x004FFFFF);// bit 22...0 |
| break; |
| |
| case 26: |
| data = 0 | (FCSR & 0xFFFC0000) // move 31...18 |
| | Rt.uw<17:12> << 12 // bit 17...12 |
| | (FCSR & 0x00000F80) << 7// bit 11...7 |
| | Rt.uw<6:2> << 2 // bit 6...2 |
| | (FCSR & 0x00000002); // bit 1...0 |
| break; |
| |
| case 28: |
| data = 0 | (FCSR & 0xFE000000) // move 31...25 |
| | Rt.uw<2:2> << 24 // bit 24 |
| | (FCSR & 0x00FFF000) << 23// bit 23...12 |
| | Rt.uw<11:7> << 7 // bit 24 |
| | (FCSR & 0x000007E) |
| | Rt.uw<1:0>;// bit 22...0 |
| break; |
| |
| case 31: |
| data = Rt.uw; |
| break; |
| |
| default: |
| panic("FP Control Value (%d) Not Available. Ignoring Access to" |
| "Floating Control Status Register", FS); |
| } |
| xc->setRegOtherThread(FCSR, data); |
| }}); |
| default: CP0Unimpl::unknown(); |
| } |
| } |
| } |
| |
| |
| 0xB: decode RD { |
| format MT_Control { |
| 0x0: decode POS { |
| 0x0: decode SEL { |
| 0x1: decode SC { |
| 0x0: dvpe({{ Rt = MVPControl; |
| if (VPEConf0<VPEC0_MVP:> == 1) { |
| MVPControl = insertBits(MVPControl, MVPC_EVP, 0); |
| } |
| }}); |
| 0x1: evpe({{ Rt = MVPControl; |
| if (VPEConf0<VPEC0_MVP:> == 1) { |
| MVPControl = insertBits(MVPControl, MVPC_EVP, 1); |
| } |
| }}); |
| default:CP0Unimpl::unknown(); |
| } |
| default:CP0Unimpl::unknown(); |
| } |
| default:CP0Unimpl::unknown(); |
| } |
| |
| 0x1: decode POS { |
| 0xF: decode SEL { |
| 0x1: decode SC { |
| 0x0: dmt({{ Rt = VPEControl; |
| VPEControl = insertBits(VPEControl, VPEC_TE, 0); |
| }}); |
| 0x1: emt({{ Rt = VPEControl; |
| VPEControl = insertBits(VPEControl, VPEC_TE, 1); |
| }}); |
| default:CP0Unimpl::unknown(); |
| } |
| default:CP0Unimpl::unknown(); |
| } |
| default:CP0Unimpl::unknown(); |
| } |
| } |
| 0xC: decode POS { |
| 0x0: decode SC { |
| 0x0: CP0Control::di({{ |
| if(Config_AR >= 1) // Rev 2.0 or beyond? |
| { |
| Rt = Status; |
| Status_IE = 0; |
| } |
| else // Enable this else branch once we actually set values for Config on init |
| { |
| fault = new ReservedInstructionFault(); |
| } |
| }}); |
| 0x1: CP0Control::ei({{ |
| if(Config_AR >= 1) |
| { |
| Rt = Status; |
| Status_IE = 1; |
| } |
| else |
| { |
| fault = new ReservedInstructionFault(); |
| } |
| }}); |
| default:CP0Unimpl::unknown(); |
| } |
| } |
| default: CP0Unimpl::unknown(); |
| } |
| format CP0Control { |
| 0xA: rdpgpr({{ |
| if(Config_AR >= 1) |
| { // Rev 2 of the architecture |
| Rd = xc->tcBase()->readIntReg(RT + NumIntRegs * SRSCtl_PSS); |
| } |
| else |
| { |
| fault = new ReservedInstructionFault(); |
| } |
| }}); |
| 0xE: wrpgpr({{ |
| if(Config_AR >= 1) |
| { // Rev 2 of the architecture |
| xc->tcBase()->setIntReg(RD + NumIntRegs * SRSCtl_PSS,Rt); |
| // warn("Writing %d to %d, PSS: %d, SRS: %x\n",Rt,RD + NumIntRegs * SRSCtl_PSS, SRSCtl_PSS,SRSCtl); |
| } |
| else |
| { |
| fault = new ReservedInstructionFault(); |
| } |
| |
| }}); |
| } |
| |
| } |
| |
| //Table A-12 MIPS32 COP0 Encoding of Function Field When rs=CO |
| 0x1: decode FUNCTION { |
| format CP0Control { |
| 0x18: eret({{ |
| DPRINTF(MipsPRA,"Restoring PC - %x\n",EPC); |
| // Ugly hack to get the value of Status_EXL |
| if(Status_EXL == 1){ |
| DPRINTF(MipsPRA,"ERET EXL Hack\n"); |
| } |
| if(Status_ERL == 1){ |
| Status_ERL = 0; |
| NPC = ErrorEPC; |
| NNPC = ErrorEPC + sizeof(MachInst); // Need to adjust NNPC, otherwise things break |
| } |
| else { |
| NPC = EPC; |
| NNPC = EPC + sizeof(MachInst); // Need to adjust NNPC, otherwise things break |
| Status_EXL = 0; |
| if(Config_AR >=1 && SRSCtl_HSS > 0 && Status_BEV == 0){ |
| SRSCtl_CSS = SRSCtl_PSS; |
| //xc->setShadowSet(SRSCtl_PSS); |
| } |
| } |
| LLFlag = 0; |
| }},IsReturn,IsSerializing,IsERET); |
| |
| 0x1F: deret({{ |
| // if(EJTagImplemented()) { |
| if(Debug_DM == 1){ |
| Debug_DM = 1; |
| Debug_IEXI = 0; |
| NPC = DEPC; |
| } |
| else |
| { |
| // Undefined; |
| } |
| //} // EJTag Implemented |
| //else { |
| // Reserved Instruction Exception |
| //} |
| }},IsReturn,IsSerializing,IsERET); |
| } |
| format CP0TLB { |
| 0x01: tlbr({{ |
| MipsISA::PTE *PTEntry = xc->tcBase()->getITBPtr()->getEntry(Index & 0x7FFFFFFF); |
| if(PTEntry == NULL) |
| { |
| fatal("Invalid PTE Entry received on a TLBR instruction\n"); |
| } |
| /* Setup PageMask */ |
| PageMask = (PTEntry->Mask << 11); // If 1KB pages are not enabled, a read of PageMask must return 0b00 in bits 12, 11 |
| /* Setup EntryHi */ |
| EntryHi = ((PTEntry->VPN << 11) | (PTEntry->asid)); |
| /* Setup Entry Lo0 */ |
| EntryLo0 = ((PTEntry->PFN0 << 6) | (PTEntry->C0 << 3) | (PTEntry->D0 << 2) | (PTEntry->V0 << 1) | PTEntry->G); |
| /* Setup Entry Lo1 */ |
| EntryLo1 = ((PTEntry->PFN1 << 6) | (PTEntry->C1 << 3) | (PTEntry->D1 << 2) | (PTEntry->V1 << 1) | PTEntry->G); |
| }}); // Need to hook up to TLB |
| |
| 0x02: tlbwi({{ |
| //Create PTE |
| MipsISA::PTE NewEntry; |
| //Write PTE |
| NewEntry.Mask = (Addr)(PageMask >> 11); |
| NewEntry.VPN = (Addr)(EntryHi >> 11); |
| /* PageGrain _ ESP Config3 _ SP */ |
| if(((PageGrain>>28) & 1) == 0 || ((Config3>>4)&1) ==0) { |
| NewEntry.Mask |= 0x3; // If 1KB pages are *NOT* enabled, lowest bits of the mask are 0b11 for TLB writes |
| NewEntry.VPN &= 0xFFFFFFFC; // Reset bits 0 and 1 if 1KB pages are not enabled |
| } |
| NewEntry.asid = (uint8_t)(EntryHi & 0xFF); |
| |
| NewEntry.PFN0 = (Addr)(EntryLo0 >> 6); |
| NewEntry.PFN1 = (Addr)(EntryLo1 >> 6); |
| NewEntry.D0 = (bool)((EntryLo0 >> 2) & 1); |
| NewEntry.D1 = (bool)((EntryLo1 >> 2) & 1); |
| NewEntry.V1 = (bool)((EntryLo1 >> 1) & 1); |
| NewEntry.V0 = (bool)((EntryLo0 >> 1) & 1); |
| NewEntry.G = (bool)((EntryLo0 & EntryLo1) & 1); |
| NewEntry.C0 = (uint8_t)((EntryLo0 >> 3) & 0x7); |
| NewEntry.C1 = (uint8_t)((EntryLo1 >> 3) & 0x7); |
| /* Now, compute the AddrShiftAmount and OffsetMask - TLB optimizations */ |
| /* Addr Shift Amount for 1KB or larger pages */ |
| // warn("PTE->Mask: %x\n",pte->Mask); |
| if((NewEntry.Mask & 0xFFFF) == 3){ |
| NewEntry.AddrShiftAmount = 12; |
| } else if((NewEntry.Mask & 0xFFFF) == 0x0000){ |
| NewEntry.AddrShiftAmount = 10; |
| } else if((NewEntry.Mask & 0xFFFC) == 0x000C){ |
| NewEntry.AddrShiftAmount = 14; |
| } else if((NewEntry.Mask & 0xFFF0) == 0x0030){ |
| NewEntry.AddrShiftAmount = 16; |
| } else if((NewEntry.Mask & 0xFFC0) == 0x00C0){ |
| NewEntry.AddrShiftAmount = 18; |
| } else if((NewEntry.Mask & 0xFF00) == 0x0300){ |
| NewEntry.AddrShiftAmount = 20; |
| } else if((NewEntry.Mask & 0xFC00) == 0x0C00){ |
| NewEntry.AddrShiftAmount = 22; |
| } else if((NewEntry.Mask & 0xF000) == 0x3000){ |
| NewEntry.AddrShiftAmount = 24; |
| } else if((NewEntry.Mask & 0xC000) == 0xC000){ |
| NewEntry.AddrShiftAmount = 26; |
| } else if((NewEntry.Mask & 0x30000) == 0x30000){ |
| NewEntry.AddrShiftAmount = 28; |
| } else { |
| fatal("Invalid Mask Pattern Detected!\n"); |
| } |
| NewEntry.OffsetMask = ((1<<NewEntry.AddrShiftAmount)-1); |
| |
| MipsISA::TLB *Ptr=xc->tcBase()->getITBPtr(); |
| MiscReg c3=xc->readMiscReg(MipsISA::Config3); |
| MiscReg pg=xc->readMiscReg(MipsISA::PageGrain); |
| int SP=0; |
| if(bits(c3,Config3_SP)==1 && bits(pg,PageGrain_ESP)==1){ |
| SP=1; |
| } |
| Ptr->insertAt(NewEntry,Index & 0x7FFFFFFF,SP); |
| }}); |
| 0x06: tlbwr({{ |
| //Create PTE |
| MipsISA::PTE NewEntry; |
| //Write PTE |
| NewEntry.Mask = (Addr)(PageMask >> 11); |
| NewEntry.VPN = (Addr)(EntryHi >> 11); |
| /* PageGrain _ ESP Config3 _ SP */ |
| if(((PageGrain>>28) & 1) == 0 || ((Config3>>4)&1) ==0) { |
| NewEntry.Mask |= 0x3; // If 1KB pages are *NOT* enabled, lowest bits of the mask are 0b11 for TLB writes |
| NewEntry.VPN &= 0xFFFFFFFC; // Reset bits 0 and 1 if 1KB pages are not enabled |
| } |
| NewEntry.asid = (uint8_t)(EntryHi & 0xFF); |
| |
| NewEntry.PFN0 = (Addr)(EntryLo0 >> 6); |
| NewEntry.PFN1 = (Addr)(EntryLo1 >> 6); |
| NewEntry.D0 = (bool)((EntryLo0 >> 2) & 1); |
| NewEntry.D1 = (bool)((EntryLo1 >> 2) & 1); |
| NewEntry.V1 = (bool)((EntryLo1 >> 1) & 1); |
| NewEntry.V0 = (bool)((EntryLo0 >> 1) & 1); |
| NewEntry.G = (bool)((EntryLo0 & EntryLo1) & 1); |
| NewEntry.C0 = (uint8_t)((EntryLo0 >> 3) & 0x7); |
| NewEntry.C1 = (uint8_t)((EntryLo1 >> 3) & 0x7); |
| /* Now, compute the AddrShiftAmount and OffsetMask - TLB optimizations */ |
| /* Addr Shift Amount for 1KB or larger pages */ |
| // warn("PTE->Mask: %x\n",pte->Mask); |
| if((NewEntry.Mask & 0xFFFF) == 3){ |
| NewEntry.AddrShiftAmount = 12; |
| } else if((NewEntry.Mask & 0xFFFF) == 0x0000){ |
| NewEntry.AddrShiftAmount = 10; |
| } else if((NewEntry.Mask & 0xFFFC) == 0x000C){ |
| NewEntry.AddrShiftAmount = 14; |
| } else if((NewEntry.Mask & 0xFFF0) == 0x0030){ |
| NewEntry.AddrShiftAmount = 16; |
| } else if((NewEntry.Mask & 0xFFC0) == 0x00C0){ |
| NewEntry.AddrShiftAmount = 18; |
| } else if((NewEntry.Mask & 0xFF00) == 0x0300){ |
| NewEntry.AddrShiftAmount = 20; |
| } else if((NewEntry.Mask & 0xFC00) == 0x0C00){ |
| NewEntry.AddrShiftAmount = 22; |
| } else if((NewEntry.Mask & 0xF000) == 0x3000){ |
| NewEntry.AddrShiftAmount = 24; |
| } else if((NewEntry.Mask & 0xC000) == 0xC000){ |
| NewEntry.AddrShiftAmount = 26; |
| } else if((NewEntry.Mask & 0x30000) == 0x30000){ |
| NewEntry.AddrShiftAmount = 28; |
| } else { |
| fatal("Invalid Mask Pattern Detected!\n"); |
| } |
| NewEntry.OffsetMask = ((1<<NewEntry.AddrShiftAmount)-1); |
| |
| MipsISA::TLB *Ptr=xc->tcBase()->getITBPtr(); |
| MiscReg c3=xc->readMiscReg(MipsISA::Config3); |
| MiscReg pg=xc->readMiscReg(MipsISA::PageGrain); |
| int SP=0; |
| if(bits(c3,Config3_SP)==1 && bits(pg,PageGrain_ESP)==1){ |
| SP=1; |
| } |
| Ptr->insertAt(NewEntry,Random,SP); |
| }}); |
| |
| 0x08: tlbp({{ |
| int TLB_Index; |
| Addr VPN; |
| if(PageGrain_ESP == 1 && Config3_SP ==1){ |
| VPN = EntryHi >> 11; |
| } else { |
| VPN = ((EntryHi >> 11) & 0xFFFFFFFC); // Mask off lower 2 bits |
| } |
| TLB_Index = xc->tcBase()->getITBPtr()->probeEntry(VPN,EntryHi_ASID); |
| if(TLB_Index != -1){ // Check TLB for entry matching EntryHi |
| Index=TLB_Index; |
| // warn("\ntlbp: Match Found!\n"); |
| } else {// else, set Index = 1<<31 |
| Index = (1<<31); |
| } |
| }}); |
| } |
| format CP0Unimpl { |
| 0x20: wait(); |
| } |
| default: CP0Unimpl::unknown(); |
| |
| } |
| } |
| |
| //Table A-13 MIPS32 COP1 Encoding of rs Field |
| 0x1: decode RS_MSB { |
| |
| 0x0: decode RS_HI { |
| 0x0: decode RS_LO { |
| format CP1Control { |
| 0x0: mfc1 ({{ Rt.uw = Fs.uw; }}); |
| |
| 0x2: cfc1({{ |
| switch (FS) |
| { |
| case 0: |
| Rt = FIR; |
| break; |
| case 25: |
| Rt = 0 | (FCSR & 0xFE000000) >> 24 | (FCSR & 0x00800000) >> 23; |
| break; |
| case 26: |
| Rt = 0 | (FCSR & 0x0003F07C); |
| break; |
| case 28: |
| Rt = 0 | (FCSR & 0x00000F80) | (FCSR & 0x01000000) >> 21 | (FCSR & 0x00000003); |
| break; |
| case 31: |
| Rt = FCSR; |
| break; |
| default: |
| warn("FP Control Value (%d) Not Valid"); |
| } |
| // warn("FCSR: %x, FS: %d, FIR: %x, Rt: %x\n",FCSR, FS, FIR, Rt); |
| }}); |
| |
| 0x3: mfhc1({{ Rt.uw = Fs.ud<63:32>;}}); |
| |
| 0x4: mtc1 ({{ Fs.uw = Rt.uw; }}); |
| |
| 0x6: ctc1({{ |
| switch (FS) |
| { |
| case 25: |
| FCSR = 0 | (Rt.uw<7:1> << 25) // move 31...25 |
| | (FCSR & 0x01000000) // bit 24 |
| | (FCSR & 0x004FFFFF);// bit 22...0 |
| break; |
| |
| case 26: |
| FCSR = 0 | (FCSR & 0xFFFC0000) // move 31...18 |
| | Rt.uw<17:12> << 12 // bit 17...12 |
| | (FCSR & 0x00000F80) << 7// bit 11...7 |
| | Rt.uw<6:2> << 2 // bit 6...2 |
| | (FCSR & 0x00000002); // bit 1...0 |
| break; |
| |
| case 28: |
| FCSR = 0 | (FCSR & 0xFE000000) // move 31...25 |
| | Rt.uw<2:2> << 24 // bit 24 |
| | (FCSR & 0x00FFF000) << 23// bit 23...12 |
| | Rt.uw<11:7> << 7 // bit 24 |
| | (FCSR & 0x000007E) |
| | Rt.uw<1:0>;// bit 22...0 |
| break; |
| |
| case 31: |
| FCSR = Rt.uw; |
| break; |
| |
| default: |
| panic("FP Control Value (%d) Not Available. Ignoring Access to" |
| "Floating Control Status Register", FS); |
| } |
| }}); |
| |
| 0x7: mthc1({{ |
| uint64_t fs_hi = Rt.uw; |
| uint64_t fs_lo = Fs.ud & 0x0FFFFFFFF; |
| Fs.ud = (fs_hi << 32) | fs_lo; |
| }}); |
| |
| } |
| format CP1Unimpl { |
| 0x1: dmfc1(); |
| 0x5: dmtc1(); |
| } |
| } |
| |
| 0x1: |
| decode RS_LO { |
| 0x0: |
| decode ND { |
| format Branch { |
| 0x0: decode TF { |
| 0x0: bc1f({{ cond = getCondCode(FCSR, BRANCH_CC) == 0; |
| }}); |
| 0x1: bc1t({{ cond = getCondCode(FCSR, BRANCH_CC) == 1; |
| }}); |
| } |
| 0x1: decode TF { |
| 0x0: bc1fl({{ cond = getCondCode(FCSR, BRANCH_CC) == 0; |
| }}, Likely); |
| 0x1: bc1tl({{ cond = getCondCode(FCSR, BRANCH_CC) == 1; |
| }}, Likely); |
| } |
| } |
| } |
| format CP1Unimpl { |
| 0x1: bc1any2(); |
| 0x2: bc1any4(); |
| default: unknown(); |
| } |
| } |
| } |
| |
| 0x1: decode RS_HI { |
| 0x2: decode RS_LO { |
| //Table A-14 MIPS32 COP1 Encoding of Function Field When rs=S |
| //(( single-precision floating point)) |
| 0x0: decode FUNCTION_HI { |
| 0x0: decode FUNCTION_LO { |
| format FloatOp { |
| 0x0: add_s({{ Fd.sf = Fs.sf + Ft.sf;}}); |
| 0x1: sub_s({{ Fd.sf = Fs.sf - Ft.sf;}}); |
| 0x2: mul_s({{ Fd.sf = Fs.sf * Ft.sf;}}); |
| 0x3: div_s({{ Fd.sf = Fs.sf / Ft.sf;}}); |
| 0x4: sqrt_s({{ Fd.sf = sqrt(Fs.sf);}}); |
| 0x5: abs_s({{ Fd.sf = fabs(Fs.sf);}}); |
| 0x7: neg_s({{ Fd.sf = -Fs.sf;}}); |
| } |
| |
| 0x6: BasicOp::mov_s({{ Fd.sf = Fs.sf;}}); |
| } |
| |
| 0x1: decode FUNCTION_LO { |
| format FloatConvertOp { |
| 0x0: round_l_s({{ val = Fs.sf; }}, ToLong, |
| Round); |
| 0x1: trunc_l_s({{ val = Fs.sf; }}, ToLong, |
| Trunc); |
| 0x2: ceil_l_s({{ val = Fs.sf; }}, ToLong, |
| Ceil); |
| 0x3: floor_l_s({{ val = Fs.sf; }}, ToLong, |
| Floor); |
| 0x4: round_w_s({{ val = Fs.sf; }}, ToWord, |
| Round); |
| 0x5: trunc_w_s({{ val = Fs.sf; }}, ToWord, |
| Trunc); |
| 0x6: ceil_w_s({{ val = Fs.sf; }}, ToWord, |
| Ceil); |
| 0x7: floor_w_s({{ val = Fs.sf; }}, ToWord, |
| Floor); |
| } |
| } |
| |
| 0x2: decode FUNCTION_LO { |
| 0x1: decode MOVCF { |
| format BasicOp { |
| 0x0: movf_s({{ Fd = (getCondCode(FCSR,CC) == 0) ? Fs : Fd; }}); |
| 0x1: movt_s({{ Fd = (getCondCode(FCSR,CC) == 1) ? Fs : Fd; }}); |
| } |
| } |
| |
| format BasicOp { |
| 0x2: movz_s({{ Fd = (Rt == 0) ? Fs : Fd; }}); |
| 0x3: movn_s({{ Fd = (Rt != 0) ? Fs : Fd; }}); |
| } |
| |
| format FloatOp { |
| 0x5: recip_s({{ Fd = 1 / Fs; }}); |
| 0x6: rsqrt_s({{ Fd = 1 / sqrt(Fs);}}); |
| } |
| format CP1Unimpl { |
| default: unknown(); |
| } |
| } |
| 0x3: CP1Unimpl::unknown(); |
| |
| 0x4: decode FUNCTION_LO { |
| format FloatConvertOp { |
| 0x1: cvt_d_s({{ val = Fs.sf; }}, ToDouble); |
| 0x4: cvt_w_s({{ val = Fs.sf; }}, ToWord); |
| 0x5: cvt_l_s({{ val = Fs.sf; }}, ToLong); |
| } |
| |
| 0x6: FloatOp::cvt_ps_s({{ |
| Fd.ud = (uint64_t) Fs.uw << 32 | |
| (uint64_t) Ft.uw; |
| }}); |
| format CP1Unimpl { |
| default: unknown(); |
| } |
| } |
| 0x5: CP1Unimpl::unknown(); |
| |
| 0x6: decode FUNCTION_LO { |
| format FloatCompareOp { |
| 0x0: c_f_s({{ cond = 0; }}, SinglePrecision, |
| UnorderedFalse); |
| 0x1: c_un_s({{ cond = 0; }}, SinglePrecision, |
| UnorderedTrue); |
| 0x2: c_eq_s({{ cond = (Fs.sf == Ft.sf); }}, |
| UnorderedFalse); |
| 0x3: c_ueq_s({{ cond = (Fs.sf == Ft.sf); }}, |
| UnorderedTrue); |
| 0x4: c_olt_s({{ cond = (Fs.sf < Ft.sf); }}, |
| UnorderedFalse); |
| 0x5: c_ult_s({{ cond = (Fs.sf < Ft.sf); }}, |
| UnorderedTrue); |
| 0x6: c_ole_s({{ cond = (Fs.sf <= Ft.sf); }}, |
| UnorderedFalse); |
| 0x7: c_ule_s({{ cond = (Fs.sf <= Ft.sf); }}, |
| UnorderedTrue); |
| } |
| } |
| |
| 0x7: decode FUNCTION_LO { |
| format FloatCompareOp { |
| 0x0: c_sf_s({{ cond = 0; }}, SinglePrecision, |
| UnorderedFalse, QnanException); |
| 0x1: c_ngle_s({{ cond = 0; }}, SinglePrecision, |
| UnorderedTrue, QnanException); |
| 0x2: c_seq_s({{ cond = (Fs.sf == Ft.sf);}}, |
| UnorderedFalse, QnanException); |
| 0x3: c_ngl_s({{ cond = (Fs.sf == Ft.sf); }}, |
| UnorderedTrue, QnanException); |
| 0x4: c_lt_s({{ cond = (Fs.sf < Ft.sf); }}, |
| UnorderedFalse, QnanException); |
| 0x5: c_nge_s({{ cond = (Fs.sf < Ft.sf); }}, |
| UnorderedTrue, QnanException); |
| 0x6: c_le_s({{ cond = (Fs.sf <= Ft.sf); }}, |
| UnorderedFalse, QnanException); |
| 0x7: c_ngt_s({{ cond = (Fs.sf <= Ft.sf); }}, |
| UnorderedTrue, QnanException); |
| } |
| } |
| } |
| |
| //Table A-15 MIPS32 COP1 Encoding of Function Field When rs=D |
| 0x1: decode FUNCTION_HI { |
| 0x0: decode FUNCTION_LO { |
| format FloatOp { |
| 0x0: add_d({{ Fd.df = Fs.df + Ft.df; }}); |
| 0x1: sub_d({{ Fd.df = Fs.df - Ft.df; }}); |
| 0x2: mul_d({{ Fd.df = Fs.df * Ft.df; }}); |
| 0x3: div_d({{ Fd.df = Fs.df / Ft.df; }}); |
| 0x4: sqrt_d({{ Fd.df = sqrt(Fs.df); }}); |
| 0x5: abs_d({{ Fd.df = fabs(Fs.df); }}); |
| 0x7: neg_d({{ Fd.df = -1 * Fs.df; }}); |
| } |
| |
| 0x6: BasicOp::mov_d({{ Fd.df = Fs.df; }}); |
| } |
| |
| 0x1: decode FUNCTION_LO { |
| format FloatConvertOp { |
| 0x0: round_l_d({{ val = Fs.df; }}, ToLong, |
| Round); |
| 0x1: trunc_l_d({{ val = Fs.df; }}, ToLong, |
| Trunc); |
| 0x2: ceil_l_d({{ val = Fs.df; }}, ToLong, |
| Ceil); |
| 0x3: floor_l_d({{ val = Fs.df; }}, ToLong, |
| Floor); |
| 0x4: round_w_d({{ val = Fs.df; }}, ToWord, |
| Round); |
| 0x5: trunc_w_d({{ val = Fs.df; }}, ToWord, |
| Trunc); |
| 0x6: ceil_w_d({{ val = Fs.df; }}, ToWord, |
| Ceil); |
| 0x7: floor_w_d({{ val = Fs.df; }}, ToWord, |
| Floor); |
| } |
| } |
| |
| 0x2: decode FUNCTION_LO { |
| 0x1: decode MOVCF { |
| format BasicOp { |
| 0x0: movf_d({{ Fd.df = (getCondCode(FCSR,CC) == 0) ? |
| Fs.df : Fd.df; |
| }}); |
| 0x1: movt_d({{ Fd.df = (getCondCode(FCSR,CC) == 1) ? |
| Fs.df : Fd.df; |
| }}); |
| } |
| } |
| |
| format BasicOp { |
| 0x2: movz_d({{ Fd.df = (Rt == 0) ? Fs.df : Fd.df; }}); |
| 0x3: movn_d({{ Fd.df = (Rt != 0) ? Fs.df : Fd.df; }}); |
| } |
| |
| format FloatOp { |
| 0x5: recip_d({{ Fd.df = 1 / Fs.df }}); |
| 0x6: rsqrt_d({{ Fd.df = 1 / sqrt(Fs.df) }}); |
| } |
| format CP1Unimpl { |
| default: unknown(); |
| } |
| |
| } |
| 0x4: decode FUNCTION_LO { |
| format FloatConvertOp { |
| 0x0: cvt_s_d({{ val = Fs.df; }}, ToSingle); |
| 0x4: cvt_w_d({{ val = Fs.df; }}, ToWord); |
| 0x5: cvt_l_d({{ val = Fs.df; }}, ToLong); |
| } |
| default: CP1Unimpl::unknown(); |
| } |
| |
| 0x6: decode FUNCTION_LO { |
| format FloatCompareOp { |
| 0x0: c_f_d({{ cond = 0; }}, DoublePrecision, |
| UnorderedFalse); |
| 0x1: c_un_d({{ cond = 0; }}, DoublePrecision, |
| UnorderedTrue); |
| 0x2: c_eq_d({{ cond = (Fs.df == Ft.df); }}, |
| UnorderedFalse); |
| 0x3: c_ueq_d({{ cond = (Fs.df == Ft.df); }}, |
| UnorderedTrue); |
| 0x4: c_olt_d({{ cond = (Fs.df < Ft.df); }}, |
| UnorderedFalse); |
| 0x5: c_ult_d({{ cond = (Fs.df < Ft.df); }}, |
| UnorderedTrue); |
| 0x6: c_ole_d({{ cond = (Fs.df <= Ft.df); }}, |
| UnorderedFalse); |
| 0x7: c_ule_d({{ cond = (Fs.df <= Ft.df); }}, |
| UnorderedTrue); |
| } |
| } |
| |
| 0x7: decode FUNCTION_LO { |
| format FloatCompareOp { |
| 0x0: c_sf_d({{ cond = 0; }}, DoublePrecision, |
| UnorderedFalse, QnanException); |
| 0x1: c_ngle_d({{ cond = 0; }}, DoublePrecision, |
| UnorderedTrue, QnanException); |
| 0x2: c_seq_d({{ cond = (Fs.df == Ft.df); }}, |
| UnorderedFalse, QnanException); |
| 0x3: c_ngl_d({{ cond = (Fs.df == Ft.df); }}, |
| UnorderedTrue, QnanException); |
| 0x4: c_lt_d({{ cond = (Fs.df < Ft.df); }}, |
| UnorderedFalse, QnanException); |
| 0x5: c_nge_d({{ cond = (Fs.df < Ft.df); }}, |
| UnorderedTrue, QnanException); |
| 0x6: c_le_d({{ cond = (Fs.df <= Ft.df); }}, |
| UnorderedFalse, QnanException); |
| 0x7: c_ngt_d({{ cond = (Fs.df <= Ft.df); }}, |
| UnorderedTrue, QnanException); |
| } |
| } |
| default: CP1Unimpl::unknown(); |
| } |
| 0x2: CP1Unimpl::unknown(); |
| 0x3: CP1Unimpl::unknown(); |
| 0x7: CP1Unimpl::unknown(); |
| |
| //Table A-16 MIPS32 COP1 Encoding of Function Field When rs=W |
| 0x4: decode FUNCTION { |
| format FloatConvertOp { |
| 0x20: cvt_s_w({{ val = Fs.uw; }}, ToSingle); |
| 0x21: cvt_d_w({{ val = Fs.uw; }}, ToDouble); |
| 0x26: CP1Unimpl::cvt_ps_w(); |
| } |
| default: CP1Unimpl::unknown(); |
| } |
| |
| //Table A-16 MIPS32 COP1 Encoding of Function Field When rs=L1 |
| //Note: "1. Format type L is legal only if 64-bit floating point operations |
| //are enabled." |
| 0x5: decode FUNCTION_HI { |
| format FloatConvertOp { |
| 0x20: cvt_s_l({{ val = Fs.ud; }}, ToSingle); |
| 0x21: cvt_d_l({{ val = Fs.ud; }}, ToDouble); |
| 0x26: CP1Unimpl::cvt_ps_l(); |
| } |
| default: CP1Unimpl::unknown(); |
| } |
| |
| //Table A-17 MIPS64 COP1 Encoding of Function Field When rs=PS1 |
| //Note: "1. Format type PS is legal only if 64-bit floating point operations |
| //are enabled. " |
| 0x6: decode FUNCTION_HI { |
| 0x0: decode FUNCTION_LO { |
| format Float64Op { |
| 0x0: add_ps({{ |
| Fd1.sf = Fs1.sf + Ft2.sf; |
| Fd2.sf = Fs2.sf + Ft2.sf; |
| }}); |
| 0x1: sub_ps({{ |
| Fd1.sf = Fs1.sf - Ft2.sf; |
| Fd2.sf = Fs2.sf - Ft2.sf; |
| }}); |
| 0x2: mul_ps({{ |
| Fd1.sf = Fs1.sf * Ft2.sf; |
| Fd2.sf = Fs2.sf * Ft2.sf; |
| }}); |
| 0x5: abs_ps({{ |
| Fd1.sf = fabs(Fs1.sf); |
| Fd2.sf = fabs(Fs2.sf); |
| }}); |
| 0x6: mov_ps({{ |
| Fd1.sf = Fs1.sf; |
| Fd2.sf = Fs2.sf; |
| }}); |
| 0x7: neg_ps({{ |
| Fd1.sf = -(Fs1.sf); |
| Fd2.sf = -(Fs2.sf); |
| }}); |
| default: CP1Unimpl::unknown(); |
| } |
| } |
| 0x1: CP1Unimpl::unknown(); |
| 0x2: decode FUNCTION_LO { |
| 0x1: decode MOVCF { |
| format Float64Op { |
| 0x0: movf_ps({{ |
| Fd1 = (getCondCode(FCSR, CC) == 0) ? |
| Fs1 : Fd1; |
| Fd2 = (getCondCode(FCSR, CC+1) == 0) ? |
| Fs2 : Fd2; |
| }}); |
| 0x1: movt_ps({{ |
| Fd2 = (getCondCode(FCSR, CC) == 1) ? |
| Fs1 : Fd1; |
| Fd2 = (getCondCode(FCSR, CC+1) == 1) ? |
| Fs2 : Fd2; |
| }}); |
| } |
| } |
| |
| format Float64Op { |
| 0x2: movz_ps({{ |
| Fd1 = (getCondCode(FCSR, CC) == 0) ? |
| Fs1 : Fd1; |
| Fd2 = (getCondCode(FCSR, CC) == 0) ? |
| Fs2 : Fd2; |
| }}); |
| 0x3: movn_ps({{ |
| Fd1 = (getCondCode(FCSR, CC) == 1) ? |
| Fs1 : Fd1; |
| Fd2 = (getCondCode(FCSR, CC) == 1) ? |
| Fs2 : Fd2; |
| }}); |
| } |
| default: CP1Unimpl::unknown(); |
| |
| } |
| 0x3: CP1Unimpl::unknown(); |
| 0x4: decode FUNCTION_LO { |
| 0x0: FloatOp::cvt_s_pu({{ Fd.sf = Fs2.sf; }}); |
| default: CP1Unimpl::unknown(); |
| } |
| |
| 0x5: decode FUNCTION_LO { |
| 0x0: FloatOp::cvt_s_pl({{ Fd.sf = Fs1.sf; }}); |
| |
| format Float64Op { |
| 0x4: pll({{ Fd.ud = (uint64_t) Fs1.uw << 32 | |
| Ft1.uw; |
| }}); |
| 0x5: plu({{ Fd.ud = (uint64_t) Fs1.uw << 32 | |
| Ft2.uw; |
| }}); |
| 0x6: pul({{ Fd.ud = (uint64_t) Fs2.uw << 32 | |
| Ft1.uw; |
| }}); |
| 0x7: puu({{ Fd.ud = (uint64_t) Fs2.uw << 32 | |
| Ft2.uw; |
| }}); |
| } |
| default: CP1Unimpl::unknown(); |
| } |
| |
| 0x6: decode FUNCTION_LO { |
| format FloatPSCompareOp { |
| 0x0: c_f_ps({{ cond1 = 0; }}, {{ cond2 = 0; }}, |
| UnorderedFalse); |
| 0x1: c_un_ps({{ cond1 = 0; }}, {{ cond2 = 0; }}, |
| UnorderedTrue); |
| 0x2: c_eq_ps({{ cond1 = (Fs1.sf == Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf == Ft2.sf); }}, |
| UnorderedFalse); |
| 0x3: c_ueq_ps({{ cond1 = (Fs1.sf == Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf == Ft2.sf); }}, |
| UnorderedTrue); |
| 0x4: c_olt_ps({{ cond1 = (Fs1.sf < Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf < Ft2.sf); }}, |
| UnorderedFalse); |
| 0x5: c_ult_ps({{ cond1 = (Fs.sf < Ft.sf); }}, |
| {{ cond2 = (Fs2.sf < Ft2.sf); }}, |
| UnorderedTrue); |
| 0x6: c_ole_ps({{ cond1 = (Fs.sf <= Ft.sf); }}, |
| {{ cond2 = (Fs2.sf <= Ft2.sf); }}, |
| UnorderedFalse); |
| 0x7: c_ule_ps({{ cond1 = (Fs1.sf <= Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf <= Ft2.sf); }}, |
| UnorderedTrue); |
| } |
| } |
| |
| 0x7: decode FUNCTION_LO { |
| format FloatPSCompareOp { |
| 0x0: c_sf_ps({{ cond1 = 0; }}, {{ cond2 = 0; }}, |
| UnorderedFalse, QnanException); |
| 0x1: c_ngle_ps({{ cond1 = 0; }}, |
| {{ cond2 = 0; }}, |
| UnorderedTrue, QnanException); |
| 0x2: c_seq_ps({{ cond1 = (Fs1.sf == Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf == Ft2.sf); }}, |
| UnorderedFalse, QnanException); |
| 0x3: c_ngl_ps({{ cond1 = (Fs1.sf == Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf == Ft2.sf); }}, |
| UnorderedTrue, QnanException); |
| 0x4: c_lt_ps({{ cond1 = (Fs1.sf < Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf < Ft2.sf); }}, |
| UnorderedFalse, QnanException); |
| 0x5: c_nge_ps({{ cond1 = (Fs1.sf < Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf < Ft2.sf); }}, |
| UnorderedTrue, QnanException); |
| 0x6: c_le_ps({{ cond1 = (Fs1.sf <= Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf <= Ft2.sf); }}, |
| UnorderedFalse, QnanException); |
| 0x7: c_ngt_ps({{ cond1 = (Fs1.sf <= Ft1.sf); }}, |
| {{ cond2 = (Fs2.sf <= Ft2.sf); }}, |
| UnorderedTrue, QnanException); |
| } |
| } |
| } |
| } |
| default: CP1Unimpl::unknown(); |
| } |
| } |
| |
| //Table A-19 MIPS32 COP2 Encoding of rs Field |
| 0x2: decode RS_MSB { |
| format CP2Unimpl { |
| 0x0: decode RS_HI { |
| 0x0: decode RS_LO { |
| 0x0: mfc2(); |
| 0x2: cfc2(); |
| 0x3: mfhc2(); |
| 0x4: mtc2(); |
| 0x6: ctc2(); |
| 0x7: mftc2(); |
| default: unknown(); |
| } |
| |
| 0x1: decode ND { |
| 0x0: decode TF { |
| 0x0: bc2f(); |
| 0x1: bc2t(); |
| default: unknown(); |
| } |
| |
| 0x1: decode TF { |
| 0x0: bc2fl(); |
| 0x1: bc2tl(); |
| default: unknown(); |
| } |
| default: unknown(); |
| |
| } |
| default: unknown(); |
| |
| } |
| default: unknown(); |
| } |
| } |
| |
| //Table A-20 MIPS64 COP1X Encoding of Function Field 1 |
| //Note: "COP1X instructions are legal only if 64-bit floating point |
| //operations are enabled." |
| 0x3: decode FUNCTION_HI { |
| 0x0: decode FUNCTION_LO { |
| format LoadIndexedMemory { |
| 0x0: lwxc1({{ Fd.uw = Mem.uw;}}); |
| 0x1: ldxc1({{ Fd.ud = Mem.ud;}}); |
| 0x5: luxc1({{ Fd.ud = Mem.ud;}}, |
| {{ EA = (Rs + Rt) & ~7; }}); |
| } |
| } |
| |
| 0x1: decode FUNCTION_LO { |
| format StoreIndexedMemory { |
| 0x0: swxc1({{ Mem.uw = Fs.uw;}}); |
| 0x1: sdxc1({{ Mem.ud = Fs.ud;}}); |
| 0x5: suxc1({{ Mem.ud = Fs.ud;}}, |
| {{ EA = (Rs + Rt) & ~7; }}); |
| } |
| |
| 0x7: Prefetch::prefx({{ EA = Rs + Rt; }}); |
| } |
| |
| 0x3: decode FUNCTION_LO { |
| 0x6: Float64Op::alnv_ps({{ if (Rs<2:0> == 0) { |
| Fd.ud = Fs.ud; |
| } else if (Rs<2:0> == 4) { |
| #if BYTE_ORDER == BIG_ENDIAN |
| Fd.ud = Fs.ud<31:0> << 32 | |
| Ft.ud<63:32>; |
| #elif BYTE_ORDER == LITTLE_ENDIAN |
| Fd.ud = Ft.ud<31:0> << 32 | |
| Fs.ud<63:32>; |
| #endif |
| } else { |
| Fd.ud = Fd.ud; |
| } |
| }}); |
| } |
| |
| format FloatAccOp { |
| 0x4: decode FUNCTION_LO { |
| 0x0: madd_s({{ Fd.sf = (Fs.sf * Ft.sf) + Fr.sf; }}); |
| 0x1: madd_d({{ Fd.df = (Fs.df * Ft.df) + Fr.df; }}); |
| 0x6: madd_ps({{ |
| Fd1.sf = (Fs1.df * Ft1.df) + Fr1.df; |
| Fd2.sf = (Fs2.df * Ft2.df) + Fr2.df; |
| }}); |
| } |
| |
| 0x5: decode FUNCTION_LO { |
| 0x0: msub_s({{ Fd.sf = (Fs.sf * Ft.sf) - Fr.sf; }}); |
| 0x1: msub_d({{ Fd.df = (Fs.df * Ft.df) - Fr.df; }}); |
| 0x6: msub_ps({{ |
| Fd1.sf = (Fs1.df * Ft1.df) - Fr1.df; |
| Fd2.sf = (Fs2.df * Ft2.df) - Fr2.df; |
| }}); |
| } |
| |
| 0x6: decode FUNCTION_LO { |
| 0x0: nmadd_s({{ Fd.sf = (-1 * Fs.sf * Ft.sf) - Fr.sf; }}); |
| 0x1: nmadd_d({{ Fd.df = (-1 * Fs.df * Ft.df) + Fr.df; }}); |
| 0x6: nmadd_ps({{ |
| Fd1.sf = -((Fs1.df * Ft1.df) + Fr1.df); |
| Fd2.sf = -((Fs2.df * Ft2.df) + Fr2.df); |
| }}); |
| } |
| |
| 0x7: decode FUNCTION_LO { |
| 0x0: nmsub_s({{ Fd.sf = (-1 * Fs.sf * Ft.sf) - Fr.sf; }}); |
| 0x1: nmsub_d({{ Fd.df = (-1 * Fs.df * Ft.df) - Fr.df; }}); |
| 0x6: nmsub_ps({{ |
| Fd1.sf = -((Fs1.df * Ft1.df) - Fr1.df); |
| Fd2.sf = -((Fs2.df * Ft2.df) - Fr2.df); |
| }}); |
| } |
| |
| } |
| } |
| |
| format Branch { |
| 0x4: beql({{ cond = (Rs.sw == Rt.sw); }}, Likely); |
| 0x5: bnel({{ cond = (Rs.sw != Rt.sw); }}, Likely); |
| 0x6: blezl({{ cond = (Rs.sw <= 0); }}, Likely); |
| 0x7: bgtzl({{ cond = (Rs.sw > 0); }}, Likely); |
| } |
| } |
| |
| 0x3: decode OPCODE_LO { |
| //Table A-5 MIPS32 SPECIAL2 Encoding of Function Field |
| 0x4: decode FUNCTION_HI { |
| 0x0: decode FUNCTION_LO { |
| 0x2: IntOp::mul({{ int64_t temp1 = Rs.sd * Rt.sd; |
| Rd.sw = temp1<31:0>; |
| }}, IntMultOp); |
| |
| format HiLoRdSelValOp { |
| 0x0: madd({{ val = ((int64_t)HI_RD_SEL << 32 | LO_RD_SEL) + (Rs.sd * Rt.sd); }}, IntMultOp); |
| 0x1: maddu({{ val = ((uint64_t)HI_RD_SEL << 32 | LO_RD_SEL) + (Rs.ud * Rt.ud); }}, IntMultOp); |
| 0x4: msub({{ val = ((int64_t)HI_RD_SEL << 32 | LO_RD_SEL) - (Rs.sd * Rt.sd); }}, IntMultOp); |
| 0x5: msubu({{ val = ((uint64_t)HI_RD_SEL << 32 | LO_RD_SEL) - (Rs.ud * Rt.ud); }}, IntMultOp); |
| } |
| } |
| |
| 0x4: decode FUNCTION_LO { |
| format BasicOp { |
| 0x0: clz({{ int cnt = 32; |
| for (int idx = 31; idx >= 0; idx--) { |
| if( Rs<idx:idx> == 1) { |
| cnt = 31 - idx; |
| break; |
| } |
| } |
| Rd.uw = cnt; |
| }}); |
| 0x1: clo({{ int cnt = 32; |
| for (int idx = 31; idx >= 0; idx--) { |
| if( Rs<idx:idx> == 0) { |
| cnt = 31 - idx; |
| break; |
| } |
| } |
| Rd.uw = cnt; |
| }}); |
| } |
| } |
| |
| 0x7: decode FUNCTION_LO { |
| 0x7: FailUnimpl::sdbbp(); |
| } |
| } |
| |
| //Table A-6 MIPS32 SPECIAL3 Encoding of Function Field for Release 2 |
| //of the Architecture |
| 0x7: decode FUNCTION_HI { |
| 0x0: decode FUNCTION_LO { |
| format BasicOp { |
| 0x0: ext({{ Rt.uw = bits(Rs.uw, MSB+LSB, LSB); }}); |
| 0x4: ins({{ Rt.uw = bits(Rt.uw, 31, MSB+1) << (MSB+1) | |
| bits(Rs.uw, MSB-LSB, 0) << LSB | |
| bits(Rt.uw, LSB-1, 0); |
| }}); |
| } |
| } |
| |
| 0x1: decode FUNCTION_LO { |
| format MT_Control { |
| 0x0: fork({{ forkThread(xc->tcBase(), fault, RD, Rs, Rt); }}, |
| UserMode); |
| 0x1: yield({{ Rd.sw = yieldThread(xc->tcBase(), fault, Rs.sw, YQMask); }}, |
| UserMode); |
| } |
| |
| //Table 5-9 MIPS32 LX Encoding of the op Field (DSP ASE MANUAL) |
| 0x2: decode OP_HI { |
| 0x0: decode OP_LO { |
| format LoadIndexedMemory { |
| 0x0: lwx({{ Rd.sw = Mem.sw; }}); |
| 0x4: lhx({{ Rd.sw = Mem.sh; }}); |
| 0x6: lbux({{ Rd.uw = Mem.ub; }}); |
| } |
| } |
| } |
| 0x4: DspIntOp::insv({{ int pos = dspctl<5:0>; |
| int size = dspctl<12:7>-1; |
| Rt.uw = insertBits( Rt.uw, pos+size, pos, Rs.uw<size:0> ); }}); |
| } |
| |
| 0x2: decode FUNCTION_LO { |
| |
| //Table 5-5 MIPS32 ADDU.QB Encoding of the op Field (DSP ASE MANUAL) |
| 0x0: decode OP_HI { |
| 0x0: decode OP_LO { |
| format DspIntOp { |
| 0x0: addu_qb({{ Rd.uw = dspAdd( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| NOSATURATE, UNSIGNED, &dspctl ); }}); |
| 0x1: subu_qb({{ Rd.uw = dspSub( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| NOSATURATE, UNSIGNED, &dspctl ); }}); |
| 0x4: addu_s_qb({{ Rd.uw = dspAdd( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| SATURATE, UNSIGNED, &dspctl ); }}); |
| 0x5: subu_s_qb({{ Rd.uw = dspSub( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| SATURATE, UNSIGNED, &dspctl ); }}); |
| 0x6: muleu_s_ph_qbl({{ Rd.uw = dspMuleu( Rs.uw, Rt.uw, |
| MODE_L, &dspctl ); }}, IntMultOp); |
| 0x7: muleu_s_ph_qbr({{ Rd.uw = dspMuleu( Rs.uw, Rt.uw, |
| MODE_R, &dspctl ); }}, IntMultOp); |
| } |
| } |
| 0x1: decode OP_LO { |
| format DspIntOp { |
| 0x0: addu_ph({{ Rd.uw = dspAdd( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| NOSATURATE, UNSIGNED, &dspctl ); }}); |
| 0x1: subu_ph({{ Rd.uw = dspSub( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| NOSATURATE, UNSIGNED, &dspctl ); }}); |
| 0x2: addq_ph({{ Rd.uw = dspAdd( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| NOSATURATE, SIGNED, &dspctl ); }}); |
| 0x3: subq_ph({{ Rd.uw = dspSub( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| NOSATURATE, SIGNED, &dspctl ); }}); |
| 0x4: addu_s_ph({{ Rd.uw = dspAdd( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| SATURATE, UNSIGNED, &dspctl ); }}); |
| 0x5: subu_s_ph({{ Rd.uw = dspSub( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| SATURATE, UNSIGNED, &dspctl ); }}); |
| 0x6: addq_s_ph({{ Rd.uw = dspAdd( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| SATURATE, SIGNED, &dspctl ); }}); |
| 0x7: subq_s_ph({{ Rd.uw = dspSub( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| SATURATE, SIGNED, &dspctl ); }}); |
| } |
| } |
| 0x2: decode OP_LO { |
| format DspIntOp { |
| 0x0: addsc({{ int64_t dresult; |
| dresult = Rs.ud + Rt.ud; |
| Rd.sw = dresult<31:0>; |
| dspctl = insertBits( dspctl, 13, 13, |
| dresult<32:32> ); }}); |
| 0x1: addwc({{ int64_t dresult; |
| dresult = Rs.sd + Rt.sd + dspctl<13:13>; |
| Rd.sw = dresult<31:0>; |
| if( dresult<32:32> != dresult<31:31> ) |
| dspctl = insertBits( dspctl, 20, 20, 1 ); }}); |
| 0x2: modsub({{ Rd.sw = (Rs.sw == 0) ? Rt.sw<23:8> : Rs.sw - Rt.sw<7:0>; }}); |
| 0x4: raddu_w_qb({{ Rd.uw = Rs.uw<31:24> + Rs.uw<23:16> + |
| Rs.uw<15:8> + Rs.uw<7:0>; }}); |
| 0x6: addq_s_w({{ Rd.sw = dspAdd( Rs.sw, Rt.sw, SIMD_FMT_W, |
| SATURATE, SIGNED, &dspctl ); }}); |
| 0x7: subq_s_w({{ Rd.sw = dspSub( Rs.sw, Rt.sw, SIMD_FMT_W, |
| SATURATE, SIGNED, &dspctl ); }}); |
| } |
| } |
| 0x3: decode OP_LO { |
| format DspIntOp { |
| 0x4: muleq_s_w_phl({{ Rd.sw = dspMuleq( Rs.sw, Rt.sw, |
| MODE_L, &dspctl ); }}, IntMultOp); |
| 0x5: muleq_s_w_phr({{ Rd.sw = dspMuleq( Rs.sw, Rt.sw, |
| MODE_R, &dspctl ); }}, IntMultOp); |
| 0x6: mulq_s_ph({{ Rd.sw = dspMulq( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| SATURATE, NOROUND, &dspctl ); }}, IntMultOp); |
| 0x7: mulq_rs_ph({{ Rd.sw = dspMulq( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| SATURATE, ROUND, &dspctl ); }}, IntMultOp); |
| } |
| } |
| } |
| |
| //Table 5-6 MIPS32 CMPU_EQ_QB Encoding of the op Field (DSP ASE MANUAL) |
| 0x1: decode OP_HI { |
| 0x0: decode OP_LO { |
| format DspIntOp { |
| 0x0: cmpu_eq_qb({{ dspCmp( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_EQ, &dspctl ); }}); |
| 0x1: cmpu_lt_qb({{ dspCmp( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_LT, &dspctl ); }}); |
| 0x2: cmpu_le_qb({{ dspCmp( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_LE, &dspctl ); }}); |
| 0x3: pick_qb({{ Rd.uw = dspPick( Rs.uw, Rt.uw, |
| SIMD_FMT_QB, &dspctl ); }}); |
| 0x4: cmpgu_eq_qb({{ Rd.uw = dspCmpg( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_EQ ); }}); |
| 0x5: cmpgu_lt_qb({{ Rd.uw = dspCmpg( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_LT ); }}); |
| 0x6: cmpgu_le_qb({{ Rd.uw = dspCmpg( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_LE ); }}); |
| } |
| } |
| 0x1: decode OP_LO { |
| format DspIntOp { |
| 0x0: cmp_eq_ph({{ dspCmp( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| SIGNED, CMP_EQ, &dspctl ); }}); |
| 0x1: cmp_lt_ph({{ dspCmp( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| SIGNED, CMP_LT, &dspctl ); }}); |
| 0x2: cmp_le_ph({{ dspCmp( Rs.uw, Rt.uw, SIMD_FMT_PH, |
| SIGNED, CMP_LE, &dspctl ); }}); |
| 0x3: pick_ph({{ Rd.uw = dspPick( Rs.uw, Rt.uw, |
| SIMD_FMT_PH, &dspctl ); }}); |
| 0x4: precrq_qb_ph({{ Rd.uw = Rs.uw<31:24> << 24 | |
| Rs.uw<15:8> << 16 | |
| Rt.uw<31:24> << 8 | |
| Rt.uw<15:8>; }}); |
| 0x5: precr_qb_ph({{ Rd.uw = Rs.uw<23:16> << 24 | |
| Rs.uw<7:0> << 16 | |
| Rt.uw<23:16> << 8 | |
| Rt.uw<7:0>; }}); |
| 0x6: packrl_ph({{ Rd.uw = dspPack( Rs.uw, Rt.uw, |
| SIMD_FMT_PH ); }}); |
| 0x7: precrqu_s_qb_ph({{ Rd.uw = dspPrecrqu( Rs.uw, Rt.uw, &dspctl ); }}); |
| } |
| } |
| 0x2: decode OP_LO { |
| format DspIntOp { |
| 0x4: precrq_ph_w({{ Rd.uw = Rs.uw<31:16> << 16 | Rt.uw<31:16>; }}); |
| 0x5: precrq_rs_ph_w({{ Rd.uw = dspPrecrq( Rs.uw, Rt.uw, SIMD_FMT_W, &dspctl ); }}); |
| } |
| } |
| 0x3: decode OP_LO { |
| format DspIntOp { |
| 0x0: cmpgdu_eq_qb({{ Rd.uw = dspCmpgd( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_EQ, &dspctl ); }}); |
| 0x1: cmpgdu_lt_qb({{ Rd.uw = dspCmpgd( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_LT, &dspctl ); }}); |
| 0x2: cmpgdu_le_qb({{ Rd.uw = dspCmpgd( Rs.uw, Rt.uw, SIMD_FMT_QB, |
| UNSIGNED, CMP_LE, &dspctl ); }}); |
| 0x6: precr_sra_ph_w({{ Rt.uw = dspPrecrSra( Rt.uw, Rs.uw, RD, |
| SIMD_FMT_W, NOROUND ); }}); |
| 0x7: precr_sra_r_ph_w({{ Rt.uw = dspPrecrSra( Rt.uw, Rs.uw, RD, |
| SIMD_FMT_W, ROUND ); }}); |
| } |
| } |
| } |
| |
| //Table 5-7 MIPS32 ABSQ_S.PH Encoding of the op Field (DSP ASE MANUAL) |
| 0x2: decode OP_HI { |
| 0x0: decode OP_LO { |
| format DspIntOp { |
| 0x1: absq_s_qb({{ Rd.sw = dspAbs( Rt.sw, SIMD_FMT_QB, &dspctl );}}); |
| 0x2: repl_qb({{ Rd.uw = RS_RT<7:0> << 24 | |
| RS_RT<7:0> << 16 | |
| RS_RT<7:0> << 8 | |
| RS_RT<7:0>; }}); |
| 0x3: replv_qb({{ Rd.sw = Rt.uw<7:0> << 24 | |
| Rt.uw<7:0> << 16 | |
| Rt.uw<7:0> << 8 | |
| Rt.uw<7:0>; }}); |
| 0x4: precequ_ph_qbl({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, SIGNED, MODE_L ); }}); |
| 0x5: precequ_ph_qbr({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, SIGNED, MODE_R ); }}); |
| 0x6: precequ_ph_qbla({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, SIGNED, MODE_LA ); }}); |
| 0x7: precequ_ph_qbra({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, SIGNED, MODE_RA ); }}); |
| } |
| } |
| 0x1: decode OP_LO { |
| format DspIntOp { |
| 0x1: absq_s_ph({{ Rd.sw = dspAbs( Rt.sw, SIMD_FMT_PH, &dspctl ); }}); |
| 0x2: repl_ph({{ Rd.uw = (sext<10>(RS_RT))<15:0> << 16 | |
| (sext<10>(RS_RT))<15:0>; }}); |
| 0x3: replv_ph({{ Rd.uw = Rt.uw<15:0> << 16 | |
| Rt.uw<15:0>; }}); |
| 0x4: preceq_w_phl({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_PH, SIGNED, |
| SIMD_FMT_W, SIGNED, MODE_L ); }}); |
| 0x5: preceq_w_phr({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_PH, SIGNED, |
| SIMD_FMT_W, SIGNED, MODE_R ); }}); |
| } |
| } |
| 0x2: decode OP_LO { |
| format DspIntOp { |
| 0x1: absq_s_w({{ Rd.sw = dspAbs( Rt.sw, SIMD_FMT_W, &dspctl ); }}); |
| } |
| } |
| 0x3: decode OP_LO { |
| 0x3: IntOp::bitrev({{ Rd.uw = bitrev( Rt.uw<15:0> ); }}); |
| format DspIntOp { |
| 0x4: preceu_ph_qbl({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, UNSIGNED, MODE_L ); }}); |
| 0x5: preceu_ph_qbr({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, UNSIGNED, MODE_R ); }}); |
| 0x6: preceu_ph_qbla({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, UNSIGNED, MODE_LA ); }}); |
| 0x7: preceu_ph_qbra({{ Rd.uw = dspPrece( Rt.uw, SIMD_FMT_QB, UNSIGNED, |
| SIMD_FMT_PH, UNSIGNED, MODE_RA ); }}); |
| } |
| } |
| } |
| |
| //Table 5-8 MIPS32 SHLL.QB Encoding of the op Field (DSP ASE MANUAL) |
| 0x3: decode OP_HI { |
| 0x0: decode OP_LO { |
| format DspIntOp { |
| 0x0: shll_qb({{ Rd.sw = dspShll( Rt.sw, RS, SIMD_FMT_QB, |
| NOSATURATE, UNSIGNED, &dspctl ); }}); |
| 0x1: shrl_qb({{ Rd.sw = dspShrl( Rt.sw, RS, SIMD_FMT_QB, |
| UNSIGNED ); }}); |
| 0x2: shllv_qb({{ Rd.sw = dspShll( Rt.sw, Rs.sw, SIMD_FMT_QB, |
| NOSATURATE, UNSIGNED, &dspctl ); }}); |
| 0x3: shrlv_qb({{ Rd.sw = dspShrl( Rt.sw, Rs.sw, SIMD_FMT_QB, |
| UNSIGNED ); }}); |
| 0x4: shra_qb({{ Rd.sw = dspShra( Rt.sw, RS, SIMD_FMT_QB, |
| NOROUND, SIGNED, &dspctl ); }}); |
| 0x5: shra_r_qb({{ Rd.sw = dspShra( Rt.sw, RS, SIMD_FMT_QB, |
| ROUND, SIGNED, &dspctl ); }}); |
| 0x6: shrav_qb({{ Rd.sw = dspShra( Rt.sw, Rs.sw, SIMD_FMT_QB, |
| NOROUND, SIGNED, &dspctl ); }}); |
| 0x7: shrav_r_qb({{ Rd.sw = dspShra( Rt.sw, Rs.sw, SIMD_FMT_QB, |
| ROUND, SIGNED, &dspctl ); }}); |
| } |
| } |
| 0x1: decode OP_LO { |
| format DspIntOp { |
| 0x0: shll_ph({{ Rd.uw = dspShll( Rt.uw, RS, SIMD_FMT_PH, |
| NOSATURATE, SIGNED, &dspctl ); }}); |
| 0x1: shra_ph({{ Rd.sw = dspShra( Rt.sw, RS, SIMD_FMT_PH, |
| NOROUND, SIGNED, &dspctl ); }}); |
| 0x2: shllv_ph({{ Rd.sw = dspShll( Rt.sw, Rs.sw, SIMD_FMT_PH, |
| NOSATURATE, SIGNED, &dspctl ); }}); |
| 0x3: shrav_ph({{ Rd.sw = dspShra( Rt.sw, Rs.sw, SIMD_FMT_PH, |
| NOROUND, SIGNED, &dspctl ); }}); |
| 0x4: shll_s_ph({{ Rd.sw = dspShll( Rt.sw, RS, SIMD_FMT_PH, |
| SATURATE, SIGNED, &dspctl ); }}); |
| 0x5: shra_r_ph({{ Rd.sw = dspShra( Rt.sw, RS, SIMD_FMT_PH, |
| ROUND, SIGNED, &dspctl ); }}); |
| 0x6: shllv_s_ph({{ Rd.sw = dspShll( Rt.sw, Rs.sw, SIMD_FMT_PH, |
| SATURATE, SIGNED, &dspctl ); }}); |
| 0x7: shrav_r_ph({{ Rd.sw = dspShra( Rt.sw, Rs.sw, SIMD_FMT_PH, |
| ROUND, SIGNED, &dspctl ); }}); |
| } |
| } |
| 0x2: decode OP_LO { |
| format DspIntOp { |
| 0x4: shll_s_w({{ Rd.sw = dspShll( Rt.sw, RS, SIMD_FMT_W, |
| SATURATE, SIGNED, &dspctl ); }}); |
| 0x5: shra_r_w({{ Rd.sw = dspShra( Rt.sw, RS, SIMD_FMT_W, |
| ROUND, SIGNED, &dspctl ); }}); |
| 0x6: shllv_s_w({{ Rd.sw = dspShll( Rt.sw, Rs.sw, SIMD_FMT_W, |
| SATURATE, SIGNED, &dspctl ); }}); |
| 0x7: shrav_r_w({{ Rd.sw = dspShra( Rt.sw, Rs.sw, SIMD_FMT_W, |
| ROUND, SIGNED, &dspctl ); }}); |
| } |
| } |
| 0x3: decode OP_LO { |
| format DspIntOp { |
| 0x1: shrl_ph({{ Rd.sw = dspShrl( Rt.sw, RS, SIMD_FMT_PH, |
| UNSIGNED ); }}); |
| 0x3: shrlv_ph({{ Rd.sw = dspShrl( Rt.sw, Rs.sw, SIMD_FMT_PH, |
| UNSIGNED ); }}); |
| } |
| } |
| } |
| } |
| |
| 0x3: decode FUNCTION_LO { |
| |
| //Table 3.12 MIPS32 ADDUH.QB Encoding of the op Field (DSP ASE Rev2 Manual) |
| 0x0: decode OP_HI { |
| 0x0: decode OP_LO { |
| format DspIntOp { |
| 0x0: adduh_qb({{ Rd.uw = dspAddh( Rs.sw, Rt.sw, SIMD_FMT_QB, |
| NOROUND, UNSIGNED ); }}); |
| 0x1: subuh_qb({{ Rd.uw = dspSubh( Rs.sw, Rt.sw, SIMD_FMT_QB, |
| NOROUND, UNSIGNED ); }}); |
| 0x2: adduh_r_qb({{ Rd.uw = dspAddh( Rs.sw, Rt.sw, SIMD_FMT_QB, |
| ROUND, UNSIGNED ); }}); |
| 0x3: subuh_r_qb({{ Rd.uw = dspSubh( Rs.sw, Rt.sw, SIMD_FMT_QB, |
| ROUND, UNSIGNED ); }}); |
| } |
| } |
| 0x1: decode OP_LO { |
| format DspIntOp { |
| 0x0: addqh_ph({{ Rd.uw = dspAddh( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| NOROUND, SIGNED ); }}); |
| 0x1: subqh_ph({{ Rd.uw = dspSubh( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| NOROUND, SIGNED ); }}); |
| 0x2: addqh_r_ph({{ Rd.uw = dspAddh( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| ROUND, SIGNED ); }}); |
| 0x3: subqh_r_ph({{ Rd.uw = dspSubh( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| ROUND, SIGNED ); }}); |
| 0x4: mul_ph({{ Rd.sw = dspMul( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| NOSATURATE, &dspctl ); }}, IntMultOp); |
| 0x6: mul_s_ph({{ Rd.sw = dspMul( Rs.sw, Rt.sw, SIMD_FMT_PH, |
| SATURATE, &dspctl ); }}, IntMultOp); |
| |
| } |
| } |
| 0x2: decode OP_LO { |
| format DspIntOp { |
| 0x0: addqh_w({{ Rd.uw = dspAddh( Rs.sw, Rt.sw, SIMD_FMT_W, |
| NOROUND, SIGNED ); }}); |
| 0x1: subqh_w({{ Rd.uw = dspSubh( Rs.sw, Rt.sw, SIMD_FMT_W, |
| NOROUND, SIGNED ); }}); |
| 0x2: addqh_r_w({{ Rd.uw = dspAddh( Rs.sw, Rt.sw, SIMD_FMT_W, |
| ROUND, SIGNED ); }}); |
| 0x3: subqh_r_w({{ Rd.uw = dspSubh( Rs.sw, Rt.sw, SIMD_FMT_W, |
| ROUND, SIGNED ); }}); |
| 0x6: mulq_s_w({{ Rd.sw = dspMulq( Rs.sw, Rt.sw, SIMD_FMT_W, |
| SATURATE, NOROUND, &dspctl ); }}, IntMultOp); |
| 0x7: mulq_rs_w({{ Rd.sw = dspMulq( Rs.sw, Rt.sw, SIMD_FMT_W, |
| SATURATE, ROUND, &dspctl ); }}, IntMultOp); |
| } |
| } |
| } |
| } |
| |
| //Table A-10 MIPS32 BSHFL Encoding of sa Field |
| 0x4: decode SA { |
| format BasicOp { |
| 0x02: wsbh({{ Rd.uw = Rt.uw<23:16> << 24 | |
| Rt.uw<31:24> << 16 | |
| Rt.uw<7:0> << 8 | |
| Rt.uw<15:8>; |
| }}); |
| 0x10: seb({{ Rd.sw = Rt.sb; }}); |
| 0x18: seh({{ Rd.sw = Rt.sh; }}); |
| } |
| } |
| |
| 0x6: decode FUNCTION_LO { |
| |
| //Table 5-10 MIPS32 DPAQ.W.PH Encoding of the op Field (DSP ASE MANUAL) |
| 0x0: decode OP_HI { |
| 0x0: decode OP_LO { |
| format DspHiLoOp { |
| 0x0: dpa_w_ph({{ dspac = dspDpa( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_PH, SIGNED, MODE_L ); }}, IntMultOp); |
| 0x1: dps_w_ph({{ dspac = dspDps( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_PH, SIGNED, MODE_L ); }}, IntMultOp); |
| 0x2: mulsa_w_ph({{ dspac = dspMulsa( dspac, Rs.sw, Rt.sw, |
| ACDST, SIMD_FMT_PH ); }}, IntMultOp); |
| 0x3: dpau_h_qbl({{ dspac = dspDpa( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_QB, UNSIGNED, MODE_L ); }}, IntMultOp); |
| 0x4: dpaq_s_w_ph({{ dspac = dspDpaq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_PH, |
| SIMD_FMT_W, NOSATURATE, MODE_L, &dspctl ); }}, IntMultOp); |
| 0x5: dpsq_s_w_ph({{ dspac = dspDpsq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_PH, |
| SIMD_FMT_W, NOSATURATE, MODE_L, &dspctl ); }}, IntMultOp); |
| 0x6: mulsaq_s_w_ph({{ dspac = dspMulsaq( dspac, Rs.sw, Rt.sw, |
| ACDST, SIMD_FMT_PH, &dspctl ); }}, IntMultOp); |
| 0x7: dpau_h_qbr({{ dspac = dspDpa( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_QB, UNSIGNED, MODE_R ); }}, IntMultOp); |
| } |
| } |
| 0x1: decode OP_LO { |
| format DspHiLoOp { |
| 0x0: dpax_w_ph({{ dspac = dspDpa( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_PH, SIGNED, MODE_X ); }}, IntMultOp); |
| 0x1: dpsx_w_ph({{ dspac = dspDps( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_PH, SIGNED, MODE_X ); }}, IntMultOp); |
| 0x3: dpsu_h_qbl({{ dspac = dspDps( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_QB, UNSIGNED, MODE_L ); }}, IntMultOp); |
| 0x4: dpaq_sa_l_w({{ dspac = dspDpaq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_W, |
| SIMD_FMT_L, SATURATE, MODE_L, &dspctl ); }}, IntMultOp); |
| 0x5: dpsq_sa_l_w({{ dspac = dspDpsq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_W, |
| SIMD_FMT_L, SATURATE, MODE_L, &dspctl ); }}, IntMultOp); |
| 0x7: dpsu_h_qbr({{ dspac = dspDps( dspac, Rs.sw, Rt.sw, ACDST, |
| SIMD_FMT_QB, UNSIGNED, MODE_R ); }}, IntMultOp); |
| } |
| } |
| 0x2: decode OP_LO { |
| format DspHiLoOp { |
| 0x0: maq_sa_w_phl({{ dspac = dspMaq( dspac, Rs.uw, Rt.uw, ACDST, SIMD_FMT_PH, |
| MODE_L, SATURATE, &dspctl ); }}, IntMultOp); |
| 0x2: maq_sa_w_phr({{ dspac = dspMaq( dspac, Rs.uw, Rt.uw, ACDST, SIMD_FMT_PH, |
| MODE_R, SATURATE, &dspctl ); }}, IntMultOp); |
| 0x4: maq_s_w_phl({{ dspac = dspMaq( dspac, Rs.uw, Rt.uw, ACDST, SIMD_FMT_PH, |
| MODE_L, NOSATURATE, &dspctl ); }}, IntMultOp); |
| 0x6: maq_s_w_phr({{ dspac = dspMaq( dspac, Rs.uw, Rt.uw, ACDST, SIMD_FMT_PH, |
| MODE_R, NOSATURATE, &dspctl ); }}, IntMultOp); |
| } |
| } |
| 0x3: decode OP_LO { |
| format DspHiLoOp { |
| 0x0: dpaqx_s_w_ph({{ dspac = dspDpaq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_PH, |
| SIMD_FMT_W, NOSATURATE, MODE_X, &dspctl ); }}, IntMultOp); |
| 0x1: dpsqx_s_w_ph({{ dspac = dspDpsq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_PH, |
| SIMD_FMT_W, NOSATURATE, MODE_X, &dspctl ); }}, IntMultOp); |
| 0x2: dpaqx_sa_w_ph({{ dspac = dspDpaq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_PH, |
| SIMD_FMT_W, SATURATE, MODE_X, &dspctl ); }}, IntMultOp); |
| 0x3: dpsqx_sa_w_ph({{ dspac = dspDpsq( dspac, Rs.sw, Rt.sw, ACDST, SIMD_FMT_PH, |
| SIMD_FMT_W, SATURATE, MODE_X, &dspctl ); }}, IntMultOp); |
| } |
| } |
| } |
| |
| //Table 3.3 MIPS32 APPEND Encoding of the op Field |
| 0x1: decode OP_HI { |
| 0x0: decode OP_LO { |
| format IntOp { |
| 0x0: append({{ Rt.uw = (Rt.uw << RD) | bits(Rs.uw,RD-1,0); }}); |
| 0x1: prepend({{ Rt.uw = (Rt.uw >> RD) | (bits(Rs.uw,RD-1,0) << 32-RD); }}); |
| } |
| } |
| 0x2: decode OP_LO { |
| format IntOp { |
| 0x0: balign({{ Rt.uw = (Rt.uw << (8*BP)) | (Rs.uw >> (8*(4-BP))); }}); |
| } |
| } |
| } |
| |
| } |
| 0x7: decode FUNCTION_LO { |
| |
| //Table 5-11 MIPS32 EXTR.W Encoding of the op Field (DSP ASE MANUAL) |
| 0x0: decode OP_HI { |
| 0x0: decode OP_LO { |
| format DspHiLoOp { |
| 0x0: extr_w({{ Rt.uw = dspExtr( dspac, SIMD_FMT_W, RS, |
| NOROUND, NOSATURATE, &dspctl ); }}); |
| 0x1: extrv_w({{ Rt.uw = dspExtr( dspac, SIMD_FMT_W, Rs.uw, |
| NOROUND, NOSATURATE, &dspctl ); }}); |
| 0x2: extp({{ Rt.uw = dspExtp( dspac, RS, &dspctl ); }}); |
| 0x3: extpv({{ Rt.uw = dspExtp( dspac, Rs.uw, &dspctl ); }}); |
| 0x4: extr_r_w({{ Rt.uw = dspExtr( dspac, SIMD_FMT_W, RS, |
| ROUND, NOSATURATE, &dspctl ); }}); |
| 0x5: extrv_r_w({{ Rt.uw = dspExtr( dspac, SIMD_FMT_W, Rs.uw, |
| ROUND, NOSATURATE, &dspctl ); }}); |
| 0x6: extr_rs_w({{ Rt.uw = dspExtr( dspac, SIMD_FMT_W, RS, |
| ROUND, SATURATE, &dspctl ); }}); |
| 0x7: extrv_rs_w({{ Rt.uw = dspExtr( dspac, SIMD_FMT_W, Rs.uw, |
| ROUND, SATURATE, &dspctl ); }}); |
| } |
| } |
| 0x1: decode OP_LO { |
| format DspHiLoOp { |
| 0x2: extpdp({{ Rt.uw = dspExtpd( dspac, RS, &dspctl ); }}); |
| 0x3: extpdpv({{ Rt.uw = dspExtpd( dspac, Rs.uw, &dspctl ); }}); |
| 0x6: extr_s_h({{ Rt.uw = dspExtr( dspac, SIMD_FMT_PH, RS, |
| NOROUND, SATURATE, &dspctl ); }}); |
| 0x7: extrv_s_h({{ Rt.uw = dspExtr( dspac, SIMD_FMT_PH, Rs.uw, |
| NOROUND, SATURATE, &dspctl ); }}); |
| } |
| } |
| 0x2: decode OP_LO { |
| format DspIntOp { |
| 0x2: rddsp({{ Rd.uw = readDSPControl( &dspctl, RDDSPMASK ); }}); |
| 0x3: wrdsp({{ writeDSPControl( &dspctl, Rs.uw, WRDSPMASK ); }}); |
| } |
| } |
| 0x3: decode OP_LO { |
| format DspHiLoOp { |
| 0x2: shilo({{ if( sext<6>(HILOSA) < 0 ) |
| dspac = (uint64_t)dspac << -sext<6>(HILOSA); |
| else |
| dspac = (uint64_t)dspac >> sext<6>(HILOSA); }}); |
| 0x3: shilov({{ if( sext<6>(Rs.sw<5:0>) < 0 ) |
| dspac = (uint64_t)dspac << -sext<6>(Rs.sw<5:0>); |
| else |
| dspac = (uint64_t)dspac >> sext<6>(Rs.sw<5:0>); }}); |
| 0x7: mthlip({{ dspac = dspac << 32; |
| dspac |= Rs.uw; |
| dspctl = insertBits( dspctl, 5, 0, |
| dspctl<5:0>+32 ); }}); |
| } |
| } |
| } |
| 0x3: decode OP_HI { |
| 0x2: decode OP_LO { |
| 0x3: FailUnimpl::rdhwr(); |
| } |
| } |
| } |
| } |
| } |
| |
| 0x4: decode OPCODE_LO { |
| format LoadMemory { |
| 0x0: lb({{ Rt.sw = Mem.sb; }}, mem_flags = NO_ALIGN_FAULT); |
| 0x1: lh({{ Rt.sw = Mem.sh; }}, mem_flags = NO_HALF_WORD_ALIGN_FAULT); |
| 0x3: lw({{ Rt.sw = Mem.sw; }}); |
| 0x4: lbu({{ Rt.uw = Mem.ub;}}, mem_flags = NO_ALIGN_FAULT); |
| 0x5: lhu({{ Rt.uw = Mem.uh; }}, mem_flags = NO_HALF_WORD_ALIGN_FAULT); |
| } |
| |
| format LoadUnalignedMemory { |
| 0x2: lwl({{ uint32_t mem_shift = 24 - (8 * byte_offset); |
| Rt.uw = mem_word << mem_shift | |
| Rt.uw & mask(mem_shift); |
| }}); |
| 0x6: lwr({{ uint32_t mem_shift = 8 * byte_offset; |
| Rt.uw = Rt.uw & (mask(mem_shift) << (32 - mem_shift)) | |
| mem_word >> mem_shift; |
| }}); |
| } |
| } |
| |
| 0x5: decode OPCODE_LO { |
| format StoreMemory { |
| 0x0: sb({{ Mem.ub = Rt<7:0>; }}, mem_flags = NO_ALIGN_FAULT); |
| 0x1: sh({{ Mem.uh = Rt<15:0>; }}, mem_flags = NO_HALF_WORD_ALIGN_FAULT); |
| 0x3: sw({{ Mem.uw = Rt<31:0>; }}); |
| } |
| |
| format StoreUnalignedMemory { |
| 0x2: swl({{ uint32_t reg_shift = 24 - (8 * byte_offset); |
| uint32_t mem_shift = 32 - reg_shift; |
| mem_word = mem_word & (mask(reg_shift) << mem_shift) | |
| Rt.uw >> reg_shift; |
| }}); |
| 0x6: swr({{ uint32_t reg_shift = 8 * byte_offset; |
| mem_word = Rt.uw << reg_shift | |
| mem_word & (mask(reg_shift)); |
| }}); |
| } |
| format CP0Control { |
| 0x7: cache({{ |
| //Addr CacheEA = Rs.uw + OFFSET; |
| //fault = xc->CacheOp((uint8_t)CACHE_OP,(Addr) CacheEA); |
| }}); |
| } |
| } |
| |
| 0x6: decode OPCODE_LO { |
| format LoadMemory { |
| 0x0: ll({{ Rt.uw = Mem.uw; }}, mem_flags=LOCKED); |
| 0x1: lwc1({{ Ft.uw = Mem.uw; }}); |
| 0x5: ldc1({{ Ft.ud = Mem.ud; }}); |
| } |
| 0x2: CP2Unimpl::lwc2(); |
| 0x6: CP2Unimpl::ldc2(); |
| 0x3: Prefetch::pref(); |
| } |
| |
| |
| 0x7: decode OPCODE_LO { |
| 0x0: StoreCond::sc({{ Mem.uw = Rt.uw;}}, |
| {{ uint64_t tmp = write_result; |
| Rt.uw = (tmp == 0 || tmp == 1) ? tmp : Rt.uw; |
| }}, mem_flags=LOCKED, inst_flags = IsStoreConditional); |
| |
| format StoreMemory { |
| 0x1: swc1({{ Mem.uw = Ft.uw;}}); |
| 0x5: sdc1({{ Mem.ud = Ft.ud;}}); |
| } |
| |
| 0x2: CP2Unimpl::swc2(); |
| 0x6: CP2Unimpl::sdc2(); |
| |
| } |
| } |
| |
| |