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-rw-r--r--src/arch/mips/isa/base.isa111
-rw-r--r--src/arch/mips/isa/bitfields.isa102
-rw-r--r--src/arch/mips/isa/decoder.isa1102
-rw-r--r--src/arch/mips/isa/formats/basic.isa96
-rw-r--r--src/arch/mips/isa/formats/branch.isa278
-rw-r--r--src/arch/mips/isa/formats/control.isa156
-rw-r--r--src/arch/mips/isa/formats/formats.isa66
-rw-r--r--src/arch/mips/isa/formats/fp.isa373
-rw-r--r--src/arch/mips/isa/formats/int.isa269
-rw-r--r--src/arch/mips/isa/formats/mem.isa604
-rw-r--r--src/arch/mips/isa/formats/mt.isa82
-rw-r--r--src/arch/mips/isa/formats/noop.isa139
-rw-r--r--src/arch/mips/isa/formats/tlbop.isa80
-rw-r--r--src/arch/mips/isa/formats/trap.isa81
-rw-r--r--src/arch/mips/isa/formats/unimp.isa145
-rw-r--r--src/arch/mips/isa/formats/unknown.isa84
-rw-r--r--src/arch/mips/isa/formats/util.isa189
-rw-r--r--src/arch/mips/isa/includes.isa82
-rw-r--r--src/arch/mips/isa/main.isa61
-rw-r--r--src/arch/mips/isa/operands.isa91
20 files changed, 4191 insertions, 0 deletions
diff --git a/src/arch/mips/isa/base.isa b/src/arch/mips/isa/base.isa
new file mode 100644
index 000000000..7c042f16f
--- /dev/null
+++ b/src/arch/mips/isa/base.isa
@@ -0,0 +1,111 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Base class for MIPS instructions, and some support functions
+//
+
+//Outputs to decoder.hh
+output header {{
+
+ using namespace MipsISA;
+
+ /**
+ * Base class for all MIPS static instructions.
+ */
+ class MipsStaticInst : public StaticInst
+ {
+ protected:
+
+ // Constructor
+ MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
+ : StaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ /// Print a register name for disassembly given the unique
+ /// dependence tag number (FP or int).
+ void printReg(std::ostream &os, int reg) const;
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+}};
+
+//Ouputs to decoder.cc
+output decoder {{
+
+ void MipsStaticInst::printReg(std::ostream &os, int reg) const
+ {
+ if (reg < FP_Base_DepTag) {
+ ccprintf(os, "r%d", reg);
+ }
+ else {
+ ccprintf(os, "f%d", reg - FP_Base_DepTag);
+ }
+ }
+
+ std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ // Need to find standard way to not print
+ // this info. Maybe add bool variable to
+ // class?
+ if (mnemonic != "syscall") {
+ if(_numDestRegs > 0){
+ printReg(ss, _destRegIdx[0]);
+ }
+
+ if(_numSrcRegs > 0) {
+ ss << ", ";
+ printReg(ss, _srcRegIdx[0]);
+ }
+
+ if(_numSrcRegs > 1) {
+ ss << ", ";
+ printReg(ss, _srcRegIdx[1]);
+ }
+ }
+
+ // Should we define a separate inst. class
+ // just for two insts?
+ if(mnemonic == "sll" || mnemonic == "sra"){
+ ccprintf(ss,", %d",SA);
+ }
+
+ return ss.str();
+ }
+
+}};
+
diff --git a/src/arch/mips/isa/bitfields.isa b/src/arch/mips/isa/bitfields.isa
new file mode 100644
index 000000000..35815bf1f
--- /dev/null
+++ b/src/arch/mips/isa/bitfields.isa
@@ -0,0 +1,102 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Bitfield definitions.
+//
+
+def bitfield OPCODE <31:26>;
+def bitfield OPCODE_HI <31:29>;
+def bitfield OPCODE_LO <28:26>;
+
+def bitfield REGIMM <20:16>;
+def bitfield REGIMM_HI <20:19>;
+def bitfield REGIMM_LO <18:16>;
+
+def bitfield FUNCTION < 5: 0>;
+def bitfield FUNCTION_HI < 5: 3>;
+def bitfield FUNCTION_LO < 2: 0>;
+
+def bitfield RS <25:21>;
+def bitfield RS_MSB <25:25>;
+def bitfield RS_HI <25:24>;
+def bitfield RS_LO <23:21>;
+def bitfield RS_SRL <25:22>;
+def bitfield RS_RT <25:16>;
+def bitfield RT <20:16>;
+def bitfield RT_HI <20:19>;
+def bitfield RT_LO <18:16>;
+def bitfield RT_RD <20:11>;
+def bitfield RD <15:11>;
+
+def bitfield INTIMM <15: 0>;
+
+// Floating-point operate format
+def bitfield FMT <25:21>;
+def bitfield FR <25:21>;
+def bitfield FT <20:16>;
+def bitfield FS <15:11>;
+def bitfield FD <10:6>;
+
+def bitfield ND <17:17>;
+def bitfield TF <16:16>;
+def bitfield MOVCI <16:16>;
+def bitfield MOVCF <16:16>;
+def bitfield SRL <21:21>;
+def bitfield SRLV < 6: 6>;
+def bitfield SA <10: 6>;
+
+// Floating Point Condition Codes
+def bitfield CC <10:8>;
+def bitfield BRANCH_CC <20:18>;
+
+// CP0 Register Select
+def bitfield SEL < 2: 0>;
+
+// Interrupts
+def bitfield SC < 5: 5>;
+
+// Branch format
+def bitfield OFFSET <15: 0>; // displacement
+
+// Jmp format
+def bitfield JMPTARG <25: 0>;
+def bitfield HINT <10: 6>;
+
+def bitfield SYSCALLCODE <25: 6>;
+def bitfield TRAPCODE <15:13>;
+
+// EXT/INS instructions
+def bitfield MSB <15:11>;
+def bitfield LSB <10: 6>;
+
+// M5 instructions
+def bitfield M5FUNC <7:0>;
diff --git a/src/arch/mips/isa/decoder.isa b/src/arch/mips/isa/decoder.isa
new file mode 100644
index 000000000..d65e3eb94
--- /dev/null
+++ b/src/arch/mips/isa/decoder.isa
@@ -0,0 +1,1102 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// 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 @ 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: WarnUnimpl::ssnop();
+ 0x3: WarnUnimpl::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({{ NNPC = Rs & ~1; }}, IsReturn, ClearHazards);
+ default: jr({{ NNPC = Rs & ~1; }}, IsReturn);
+ }
+
+ 0x1: decode HINT {
+ 0x1: jalr_hb({{ Rd = NNPC; NNPC = Rs; }}, IsCall, Link
+ , ClearHazards);
+ default: jalr({{ Rd = NNPC; NNPC = Rs; }}, IsCall,
+ Link);
+ }
+ }
+
+ format BasicOp {
+ 0x2: movz({{ Rd = (Rt == 0) ? Rs : Rd; }});
+ 0x3: movn({{ Rd = (Rt != 0) ? Rs : Rd; }});
+ 0x4: syscall({{ xc->syscall(R2); }},
+ IsSerializeAfter, IsNonSpeculative);
+ 0x7: sync({{ ; }}, IsMemBarrier);
+ }
+
+ format FailUnimpl {
+ 0x5: break();
+ }
+ }
+
+ 0x2: decode FUNCTION_LO {
+ format HiLoMiscOp {
+ 0x0: mfhi({{ Rd = HI; }});
+ 0x1: mthi({{ HI = Rs; }});
+ 0x2: mflo({{ Rd = LO; }});
+ 0x3: mtlo({{ LO = Rs; }});
+ }
+ }
+
+ 0x3: decode FUNCTION_LO {
+ format HiLoOp {
+ 0x0: mult({{ val = Rs.sd * Rt.sd; }});
+ 0x1: multu({{ val = Rs.ud * Rt.ud; }});
+ }
+
+ format HiLoMiscOp {
+ 0x2: div({{ if (Rt.sd != 0) {
+ HI = Rs.sd % Rt.sd;
+ LO = Rs.sd / Rt.sd;
+ }
+ }});
+ 0x3: divu({{ if (Rt.ud != 0) {
+ HI = Rs.ud % Rt.ud;
+ LO = Rs.ud / Rt.ud;
+ }
+ }});
+ }
+ }
+
+ 0x4: decode HINT {
+ 0x0: decode FUNCTION_LO {
+ format IntOp {
+ 0x0: add({{ Rd.sw = Rs.sw + Rt.sw; /*Trap on Overflow*/}});
+ 0x1: addu({{ Rd.sw = Rs.sw + Rt.sw;}});
+ 0x2: sub({{ Rd.sw = Rs.sw - Rt.sw; /*Trap on Overflow*/}});
+ 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 Trap {
+ 0x0: tgei( {{ cond = (Rs.sw >= INTIMM); }});
+ 0x1: tgeiu({{ cond = (Rs.uw >= INTIMM); }});
+ 0x2: tlti( {{ cond = (Rs.sw < INTIMM); }});
+ 0x3: tltiu({{ cond = (Rs.uw < INTIMM); }});
+ 0x4: teqi( {{ cond = (Rs.sw == INTIMM);}});
+ 0x6: tnei( {{ cond = (Rs.sw != 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 {
+ 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({{ Rt.sw = Rs.sw + imm; /*Trap If Overflow*/}});
+ 0x1: addiu({{ Rt.sw = Rs.sw + imm;}});
+ 0x2: slti({{ Rt.sw = ( Rs.sw < imm) ? 1 : 0 }});
+ 0x3: 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 = xc->readMiscReg(RD << 5 | SEL); }});
+ 0x4: mtc0({{ xc->setMiscReg(RD << 5 | SEL, Rt); }});
+ }
+
+ format MipsMT {
+ 0x8: mftr();
+ 0xC: mttr();
+ 0xB: decode RD {
+ 0x0: decode SC {
+ 0x0: dvpe();
+ 0x1: evpe();
+ }
+ 0x1: decode SC {
+ 0x0: dmt();
+ 0x1: emt();
+ 0xC: decode SC {
+ 0x0: di();
+ 0x1: ei();
+ }
+ }
+ }
+ }
+
+ format FailUnimpl {
+ 0xA: rdpgpr();
+ 0xE: wrpgpr();
+ }
+ }
+
+ //Table A-12 MIPS32 COP0 Encoding of Function Field When rs=CO
+ 0x1: decode FUNCTION {
+ format FailUnimpl {
+ 0x01: tlbr();
+ 0x02: tlbwi();
+ 0x06: tlbwr();
+ 0x08: tlbp();
+
+ 0x18: eret();
+ 0x1F: deret();
+ 0x20: wait();
+ }
+ }
+ }
+
+ //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:
+ panic("FP Control Value (%d) Not Valid");
+ }
+ }});
+
+ 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;
+ }});
+
+ }
+ }
+
+ 0x1: 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);
+ }
+ }
+ }
+ }
+
+ 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);}});
+ }
+ }
+
+ 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;
+ }});
+ }
+
+ 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) }});
+ }
+ }
+
+ 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);
+ }
+ }
+
+ 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);
+ }
+ }
+ }
+
+ //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: FailUnimpl::cvt_ps_w();
+ }
+ }
+
+ //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: FailUnimpl::cvt_ps_l();
+ }
+ }
+
+ //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);
+ }});
+ }
+ }
+
+ 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;
+ }});
+ }
+
+ }
+
+ 0x4: decode FUNCTION_LO {
+ 0x0: FloatOp::cvt_s_pu({{ Fd.sf = Fs2.sf; }});
+ }
+
+ 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;
+ }});
+ }
+ }
+
+ 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);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ //Table A-19 MIPS32 COP2 Encoding of rs Field
+ 0x2: decode RS_MSB {
+ format FailUnimpl {
+ 0x0: decode RS_HI {
+ 0x0: decode RS_LO {
+ 0x0: mfc2();
+ 0x2: cfc2();
+ 0x3: mfhc2();
+ 0x4: mtc2();
+ 0x6: ctc2();
+ 0x7: mftc2();
+ }
+
+ 0x1: decode ND {
+ 0x0: decode TF {
+ 0x0: bc2f();
+ 0x1: bc2t();
+ }
+
+ 0x1: decode TF {
+ 0x0: bc2fl();
+ 0x1: bc2tl();
+ }
+ }
+ }
+ }
+ }
+
+ //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>
+ }});
+
+ format HiLoOp {
+ 0x0: madd({{ val = ((int64_t) HI << 32 | LO) +
+ (Rs.sd * Rt.sd);
+ }});
+ 0x1: maddu({{ val = ((uint64_t) HI << 32 | LO) +
+ (Rs.ud * Rt.ud);
+ }});
+ 0x4: msub({{ val = ((int64_t) HI << 32 | LO) -
+ (Rs.sd * Rt.sd);
+ }});
+ 0x5: msubu({{ val = ((uint64_t) HI << 32 | LO) -
+ (Rs.ud * Rt.ud);
+ }});
+ }
+ }
+
+ 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 MipsMT {
+ 0x0: fork();
+ 0x1: yield();
+ }
+ }
+
+ //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 {
+ 0x7: FailUnimpl::rdhwr();
+ }
+ }
+ }
+
+ 0x4: decode OPCODE_LO {
+ format LoadMemory {
+ 0x0: lb({{ Rt.sw = Mem.sb; }});
+ 0x1: lh({{ Rt.sw = Mem.sh; }});
+ 0x3: lw({{ Rt.sw = Mem.sw; }});
+ 0x4: lbu({{ Rt.uw = Mem.ub; }});
+ 0x5: lhu({{ Rt.uw = Mem.uh; }});
+ }
+
+ 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>; }});
+ 0x1: sh({{ Mem.uh = Rt<15:0>; }});
+ 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));
+ }});
+ }
+
+ 0x7: FailUnimpl::cache();
+ }
+
+ 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; }});
+ }
+
+ 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; }});
+ }
+ }
+}
+
+
diff --git a/src/arch/mips/isa/formats/basic.isa b/src/arch/mips/isa/formats/basic.isa
new file mode 100644
index 000000000..29a445b2c
--- /dev/null
+++ b/src/arch/mips/isa/formats/basic.isa
@@ -0,0 +1,96 @@
+// -*- mode:c++ -*-
+
+// 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: Steve Reinhardt
+// Korey Sewell
+
+// Declarations for execute() methods.
+def template BasicExecDeclare {{
+ Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const;
+}};
+
+// Basic instruction class declaration template.
+def template BasicDeclare {{
+ /**
+ * Static instruction class for "%(mnemonic)s".
+ */
+ class %(class_name)s : public %(base_class)s
+ {
+ public:
+ /// Constructor.
+ %(class_name)s(MachInst machInst);
+ %(BasicExecDeclare)s
+ };
+}};
+
+// Basic instruction class constructor template.
+def template BasicConstructor {{
+ inline %(class_name)s::%(class_name)s(MachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
+ {
+ %(constructor)s;
+ }
+}};
+
+
+// Basic instruction class execute method template.
+def template BasicExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(code)s;
+
+ if(fault == NoFault)
+ {
+ %(op_wb)s;
+ }
+ return fault;
+ }
+}};
+
+// Basic decode template.
+def template BasicDecode {{
+ return new %(class_name)s(machInst);
+}};
+
+// Basic decode template, passing mnemonic in as string arg to constructor.
+def template BasicDecodeWithMnemonic {{
+ return new %(class_name)s("%(mnemonic)s", machInst);
+}};
+
+// The most basic instruction format...
+def format BasicOp(code, *flags) {{
+ iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
diff --git a/src/arch/mips/isa/formats/branch.isa b/src/arch/mips/isa/formats/branch.isa
new file mode 100644
index 000000000..8c89fbfa2
--- /dev/null
+++ b/src/arch/mips/isa/formats/branch.isa
@@ -0,0 +1,278 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Control transfer instructions
+//
+
+output header {{
+
+#include <iostream>
+
+ /**
+ * Base class for instructions whose disassembly is not purely a
+ * function of the machine instruction (i.e., it depends on the
+ * PC). This class overrides the disassemble() method to check
+ * the PC and symbol table values before re-using a cached
+ * disassembly string. This is necessary for branches and jumps,
+ * where the disassembly string includes the target address (which
+ * may depend on the PC and/or symbol table).
+ */
+ class PCDependentDisassembly : public MipsStaticInst
+ {
+ protected:
+ /// Cached program counter from last disassembly
+ mutable Addr cachedPC;
+
+ /// Cached symbol table pointer from last disassembly
+ mutable const SymbolTable *cachedSymtab;
+
+ /// Constructor
+ PCDependentDisassembly(const char *mnem, MachInst _machInst,
+ OpClass __opClass)
+ : MipsStaticInst(mnem, _machInst, __opClass),
+ cachedPC(0), cachedSymtab(0)
+ {
+ }
+
+ const std::string &
+ disassemble(Addr pc, const SymbolTable *symtab) const;
+ };
+
+ /**
+ * Base class for branches (PC-relative control transfers),
+ * conditional or unconditional.
+ */
+ class Branch : public PCDependentDisassembly
+ {
+ protected:
+ /// target address (signed) Displacement .
+ int32_t disp;
+
+ /// Constructor.
+ Branch(const char *mnem, MachInst _machInst, OpClass __opClass)
+ : PCDependentDisassembly(mnem, _machInst, __opClass),
+ disp(OFFSET << 2)
+ {
+ //If Bit 17 is 1 then Sign Extend
+ if ( (disp & 0x00020000) > 0 ) {
+ disp |= 0xFFFE0000;
+ }
+ }
+
+ Addr branchTarget(Addr branchPC) const;
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+ /**
+ * Base class for jumps (register-indirect control transfers). In
+ * the Mips ISA, these are always unconditional.
+ */
+ class Jump : public PCDependentDisassembly
+ {
+ protected:
+
+ /// Displacement to target address (signed).
+ int32_t disp;
+
+ uint32_t target;
+
+ public:
+ /// Constructor
+ Jump(const char *mnem, MachInst _machInst, OpClass __opClass)
+ : PCDependentDisassembly(mnem, _machInst, __opClass),
+ disp(JMPTARG << 2)
+ {
+ }
+
+ Addr branchTarget(ThreadContext *tc) const;
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+}};
+
+output decoder {{
+ Addr
+ Branch::branchTarget(Addr branchPC) const
+ {
+ return branchPC + 4 + disp;
+ }
+
+ Addr
+ Jump::branchTarget(ThreadContext *tc) const
+ {
+ Addr NPC = tc->readPC() + 4;
+ uint64_t Rb = tc->readIntReg(_srcRegIdx[0]);
+ return (Rb & ~3) | (NPC & 1);
+ }
+
+ const std::string &
+ PCDependentDisassembly::disassemble(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ if (!cachedDisassembly ||
+ pc != cachedPC || symtab != cachedSymtab)
+ {
+ if (cachedDisassembly)
+ delete cachedDisassembly;
+
+ cachedDisassembly =
+ new std::string(generateDisassembly(pc, symtab));
+ cachedPC = pc;
+ cachedSymtab = symtab;
+ }
+
+ return *cachedDisassembly;
+ }
+
+ std::string
+ Branch::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ // There's only one register arg (RA), but it could be
+ // either a source (the condition for conditional
+ // branches) or a destination (the link reg for
+ // unconditional branches)
+ if (_numSrcRegs == 1) {
+ printReg(ss, _srcRegIdx[0]);
+ ss << ", ";
+ } else if(_numSrcRegs == 2) {
+ printReg(ss, _srcRegIdx[0]);
+ ss << ", ";
+ printReg(ss, _srcRegIdx[1]);
+ ss << ", ";
+ }
+
+ Addr target = pc + 4 + disp;
+
+ std::string str;
+ if (symtab && symtab->findSymbol(target, str))
+ ss << str;
+ else
+ ccprintf(ss, "0x%x", target);
+
+ return ss.str();
+ }
+
+ std::string
+ Jump::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ if ( mnemonic == "jal" ) {
+ Addr npc = pc + 4;
+ ccprintf(ss,"0x%x",(npc & 0xF0000000) | disp);
+ } else if (_numSrcRegs == 0) {
+ std::string str;
+ if (symtab && symtab->findSymbol(disp, str))
+ ss << str;
+ else
+ ccprintf(ss, "0x%x", disp);
+ } else if (_numSrcRegs == 1) {
+ printReg(ss, _srcRegIdx[0]);
+ } else if(_numSrcRegs == 2) {
+ printReg(ss, _srcRegIdx[0]);
+ ss << ", ";
+ printReg(ss, _srcRegIdx[1]);
+ }
+
+ return ss.str();
+ }
+}};
+
+def format Branch(code,*opt_flags) {{
+ not_taken_code = ' NNPC = NNPC;\n'
+ not_taken_code += '} \n'
+
+ #Build Instruction Flags
+ #Use Link & Likely Flags to Add Link/Condition Code
+ inst_flags = ('IsDirectControl', )
+ for x in opt_flags:
+ if x == 'Link':
+ code += 'R31 = NNPC;\n'
+ elif x == 'Likely':
+ not_taken_code = ' NPC = NNPC;\n'
+ not_taken_code += ' NNPC = NNPC + 4;\n'
+ not_taken_code += '} \n'
+ inst_flags = ('IsCondDelaySlot', )
+ else:
+ inst_flags += (x, )
+
+ #Take into account uncond. branch instruction
+ if 'cond == 1' in code:
+ inst_flags += ('IsUnCondControl', )
+ else:
+ inst_flags += ('IsCondControl', )
+
+ #Condition code
+ code = 'bool cond;\n' + code
+ code += 'if (cond) {\n'
+ code += ' NNPC = NPC + disp;\n'
+ code += '} else {\n'
+ code += not_taken_code
+
+ iop = InstObjParams(name, Name, 'Branch', CodeBlock(code), inst_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format Jump(code, *opt_flags) {{
+ #Build Instruction Flags
+ #Use Link Flag to Add Link Code
+ inst_flags = ('IsIndirectControl', 'IsUncondControl')
+ for x in opt_flags:
+ if x == 'Link':
+ code = 'R31 = NNPC;\n' + code
+ elif x == 'ClearHazards':
+ code += '/* Code Needed to Clear Execute & Inst Hazards */\n'
+ else:
+ inst_flags += (x, )
+
+ iop = InstObjParams(name, Name, 'Jump', CodeBlock(code), inst_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+
+
+
diff --git a/src/arch/mips/isa/formats/control.isa b/src/arch/mips/isa/formats/control.isa
new file mode 100644
index 000000000..6c7d396f3
--- /dev/null
+++ b/src/arch/mips/isa/formats/control.isa
@@ -0,0 +1,156 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Integer operate instructions
+//
+
+//Outputs to decoder.hh
+output header {{
+
+ class Control : public MipsStaticInst
+ {
+ protected:
+
+ /// Constructor
+ Control(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ MipsStaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+ class CP0Control : public Control
+ {
+ protected:
+
+ /// Constructor
+ CP0Control(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ Control(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+ class CP1Control : public Control
+ {
+ protected:
+
+ /// Constructor
+ CP1Control(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ Control(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+}};
+
+//Outputs to decoder.cc
+output decoder {{
+ std::string Control::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ if (mnemonic == "mfc0" || mnemonic == "mtc0") {
+ ccprintf(ss, "%-10s %d,%d,%d", mnemonic,RT,RD,SEL);
+ } else {
+
+ // just print the first dest... if there's a second one,
+ // it's generally implicit
+ if (_numDestRegs > 0) {
+ printReg(ss, _destRegIdx[0]);
+ }
+
+ ss << ", ";
+
+ // just print the first two source regs... if there's
+ // a third one, it's a read-modify-write dest (Rc),
+ // e.g. for CMOVxx
+ if (_numSrcRegs > 0) {
+ printReg(ss, _srcRegIdx[0]);
+ }
+
+ if (_numSrcRegs > 1) {
+ ss << ", ";
+ printReg(ss, _srcRegIdx[1]);
+ }
+ }
+
+ return ss.str();
+ }
+
+ std::string CP0Control::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+ ccprintf(ss, "%-10s r%d, r%d, %d", mnemonic, RT, RD, SEL);
+ return ss.str();
+ }
+
+ std::string CP1Control::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+ ccprintf(ss, "%-10s r%d, f%d", mnemonic, RT, FS);
+ return ss.str();
+ }
+
+}};
+
+def format System(code, *flags) {{
+ iop = InstObjParams(name, Name, 'Control', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format CP0Control(code, *flags) {{
+ iop = InstObjParams(name, Name, 'CP0Control', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format CP1Control(code, *flags) {{
+ iop = InstObjParams(name, Name, 'CP1Control', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+
diff --git a/src/arch/mips/isa/formats/formats.isa b/src/arch/mips/isa/formats/formats.isa
new file mode 100644
index 000000000..4c3eec132
--- /dev/null
+++ b/src/arch/mips/isa/formats/formats.isa
@@ -0,0 +1,66 @@
+// -*- mode:c++ -*-
+
+// Copyright (c) 2003-2006 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: Korey Sewell
+
+//Templates from this format are used later
+//Include the basic format
+##include "basic.isa"
+
+//Include the basic format
+##include "noop.isa"
+
+//Include utility functions
+##include "util.isa"
+
+//Include the control/cp0/cp1 formats
+##include "control.isa"
+
+//Include the integer formats
+##include "int.isa"
+
+//Include the floatOp format
+##include "fp.isa"
+
+//Include the mem format
+##include "mem.isa"
+
+//Include the mem format
+##include "mt.isa"
+
+//Include the trap format
+##include "trap.isa"
+
+//Include the branch format
+##include "branch.isa"
+
+//Include the noop format
+##include "unimp.isa"
+
+//Include the noop format
+##include "unknown.isa"
diff --git a/src/arch/mips/isa/formats/fp.isa b/src/arch/mips/isa/formats/fp.isa
new file mode 100644
index 000000000..cdb892b3f
--- /dev/null
+++ b/src/arch/mips/isa/formats/fp.isa
@@ -0,0 +1,373 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Floating Point operate instructions
+//
+
+output header {{
+ /**
+ * Base class for FP operations.
+ */
+ class FPOp : public MipsStaticInst
+ {
+ protected:
+
+ /// Constructor
+ FPOp(const char *mnem, MachInst _machInst, OpClass __opClass) : MipsStaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ //std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+
+ //needs function to check for fpEnable or not
+ };
+
+ class FPCompareOp : public FPOp
+ {
+ protected:
+ FPCompareOp(const char *mnem, MachInst _machInst, OpClass __opClass) : FPOp(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+
+ };
+}};
+
+output decoder {{
+ std::string FPCompareOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ ccprintf(ss,"%d",CC);
+
+ if(_numSrcRegs > 0) {
+ ss << ", ";
+ printReg(ss, _srcRegIdx[0]);
+ }
+
+ if(_numSrcRegs > 1) {
+ ss << ", ";
+ printReg(ss, _srcRegIdx[1]);
+ }
+
+ return ss.str();
+ }
+}};
+
+output exec {{
+
+ //If any operand is Nan return the appropriate QNaN
+ template <class T>
+ bool
+ fpNanOperands(FPOp *inst, %(CPU_exec_context)s *xc, const T &src_type,
+ Trace::InstRecord *traceData)
+ {
+ uint64_t mips_nan = 0;
+ T src_op = 0;
+ int size = sizeof(src_op) * 8;
+
+ for (int i = 0; i < inst->numSrcRegs(); i++) {
+ uint64_t src_bits = xc->readFloatRegBits(inst, 0, size);
+
+ if (isNan(&src_bits, size) ) {
+ if (isSnan(&src_bits, size)) {
+ switch (size)
+ {
+ case 32: mips_nan = MIPS32_QNAN; break;
+ case 64: mips_nan = MIPS64_QNAN; break;
+ default: panic("Unsupported Floating Point Size (%d)", size);
+ }
+ } else {
+ mips_nan = src_bits;
+ }
+
+ xc->setFloatRegBits(inst, 0, mips_nan, size);
+ if (traceData) { traceData->setData(mips_nan); }
+ return true;
+ }
+ }
+ return false;
+ }
+
+ template <class T>
+ bool
+ fpInvalidOp(FPOp *inst, %(CPU_exec_context)s *cpu, const T dest_val,
+ Trace::InstRecord *traceData)
+ {
+ uint64_t mips_nan = 0;
+ T src_op = dest_val;
+ int size = sizeof(src_op) * 8;
+
+ if (isNan(&src_op, size)) {
+ switch (size)
+ {
+ case 32: mips_nan = MIPS32_QNAN; break;
+ case 64: mips_nan = MIPS64_QNAN; break;
+ default: panic("Unsupported Floating Point Size (%d)", size);
+ }
+
+ //Set value to QNAN
+ cpu->setFloatRegBits(inst, 0, mips_nan, size);
+
+ //Read FCSR from FloatRegFile
+ uint32_t fcsr_bits = cpu->tcBase()->readFloatRegBits(FCSR);
+
+ //Write FCSR from FloatRegFile
+ cpu->tcBase()->setFloatRegBits(FCSR, genInvalidVector(fcsr_bits));
+
+ if (traceData) { traceData->setData(mips_nan); }
+ return true;
+ }
+
+ return false;
+ }
+
+ void
+ fpResetCauseBits(%(CPU_exec_context)s *cpu)
+ {
+ //Read FCSR from FloatRegFile
+ uint32_t fcsr = cpu->tcBase()->readFloatRegBits(FCSR);
+
+ fcsr = bits(fcsr, 31, 18) << 18 | bits(fcsr, 11, 0);
+
+ //Write FCSR from FloatRegFile
+ cpu->tcBase()->setFloatRegBits(FCSR, fcsr);
+ }
+}};
+
+def template FloatingPointExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+
+ //When is the right time to reset cause bits?
+ //start of every instruction or every cycle?
+#if FULL_SYSTEM
+ fpResetCauseBits(xc);
+#endif
+ %(op_decl)s;
+ %(op_rd)s;
+
+ //Check if any FP operand is a NaN value
+ if (!fpNanOperands((FPOp*)this, xc, Fd, traceData)) {
+ %(code)s;
+
+ //Change this code for Full-System/Sycall Emulation
+ //separation
+ //----
+ //Should Full System-Mode throw a fault here?
+ //----
+ //Check for IEEE 754 FP Exceptions
+ //fault = fpNanOperands((FPOp*)this, xc, Fd, traceData);
+ if (
+#if FULL_SYSTEM
+ !fpInvalidOp((FPOp*)this, xc, Fd, traceData) &&
+#endif
+ fault == NoFault)
+ {
+ %(op_wb)s;
+ }
+ }
+
+ return fault;
+ }
+}};
+
+// Primary format for float point operate instructions:
+def format FloatOp(code, *flags) {{
+ iop = InstObjParams(name, Name, 'FPOp', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = FloatingPointExecute.subst(iop)
+}};
+
+def format FloatCompareOp(cond_code, *flags) {{
+ import sys
+
+ code = 'bool cond;\n'
+ if '.sf' in cond_code or 'SinglePrecision' in flags:
+ if 'QnanException' in flags:
+ code += 'if (isQnan(&Fs.sf, 32) || isQnan(&Ft.sf, 32)) {\n'
+ code += '\tFCSR = genInvalidVector(FCSR);\n'
+ code += '\treturn NoFault;'
+ code += '}\n else '
+ code += 'if (isNan(&Fs.sf, 32) || isNan(&Ft.sf, 32)) {\n'
+ elif '.df' in cond_code or 'DoublePrecision' in flags:
+ if 'QnanException' in flags:
+ code += 'if (isQnan(&Fs.df, 64) || isQnan(&Ft.df, 64)) {\n'
+ code += '\tFCSR = genInvalidVector(FCSR);\n'
+ code += '\treturn NoFault;'
+ code += '}\n else '
+ code += 'if (isNan(&Fs.df, 64) || isNan(&Ft.df, 64)) {\n'
+ else:
+ sys.exit('Decoder Failed: Can\'t Determine Operand Type\n')
+
+ if 'UnorderedTrue' in flags:
+ code += 'cond = 1;\n'
+ elif 'UnorderedFalse' in flags:
+ code += 'cond = 0;\n'
+ else:
+ sys.exit('Decoder Failed: Float Compare Instruction Needs A Unordered Flag\n')
+
+ code += '} else {\n'
+ code += cond_code + '}'
+ code += 'FCSR = genCCVector(FCSR, CC, cond);\n'
+
+ iop = InstObjParams(name, Name, 'FPCompareOp', CodeBlock(code))
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format FloatConvertOp(code, *flags) {{
+ import sys
+
+ #Determine Source Type
+ convert = 'fpConvert('
+ if '.sf' in code:
+ code = 'float ' + code + '\n'
+ convert += 'SINGLE_TO_'
+ elif '.df' in code:
+ code = 'double ' + code + '\n'
+ convert += 'DOUBLE_TO_'
+ elif '.uw' in code:
+ code = 'uint32_t ' + code + '\n'
+ convert += 'WORD_TO_'
+ elif '.ud' in code:
+ code = 'uint64_t ' + code + '\n'
+ convert += 'LONG_TO_'
+ else:
+ sys.exit("Error Determining Source Type for Conversion")
+
+ #Determine Destination Type
+ if 'ToSingle' in flags:
+ code += 'Fd.uw = ' + convert + 'SINGLE, '
+ elif 'ToDouble' in flags:
+ code += 'Fd.ud = ' + convert + 'DOUBLE, '
+ elif 'ToWord' in flags:
+ code += 'Fd.uw = ' + convert + 'WORD, '
+ elif 'ToLong' in flags:
+ code += 'Fd.ud = ' + convert + 'LONG, '
+ else:
+ sys.exit("Error Determining Destination Type for Conversion")
+
+ #Figure out how to round value
+ if 'Ceil' in flags:
+ code += 'ceil(val)); '
+ elif 'Floor' in flags:
+ code += 'floor(val)); '
+ elif 'Round' in flags:
+ code += 'roundFP(val, 0)); '
+ elif 'Trunc' in flags:
+ code += 'truncFP(val));'
+ else:
+ code += 'val); '
+
+ iop = InstObjParams(name, Name, 'FPOp', CodeBlock(code))
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format FloatAccOp(code, *flags) {{
+ iop = InstObjParams(name, Name, 'FPOp', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+// Primary format for float64 operate instructions:
+def format Float64Op(code, *flags) {{
+ iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format FloatPSCompareOp(cond_code1, cond_code2, *flags) {{
+ import sys
+
+ code = 'bool cond1, cond2;\n'
+ code += 'bool code_block1, code_block2;\n'
+ code += 'code_block1 = code_block2 = true;\n'
+
+ if 'QnanException' in flags:
+ code += 'if (isQnan(&Fs1.sf, 32) || isQnan(&Ft1.sf, 32)) {\n'
+ code += '\tFCSR = genInvalidVector(FCSR);\n'
+ code += 'code_block1 = false;'
+ code += '}\n'
+ code += 'if (isQnan(&Fs2.sf, 32) || isQnan(&Ft2.sf, 32)) {\n'
+ code += '\tFCSR = genInvalidVector(FCSR);\n'
+ code += 'code_block2 = false;'
+ code += '}\n'
+
+ code += 'if (code_block1) {'
+ code += '\tif (isNan(&Fs1.sf, 32) || isNan(&Ft1.sf, 32)) {\n'
+ if 'UnorderedTrue' in flags:
+ code += 'cond1 = 1;\n'
+ elif 'UnorderedFalse' in flags:
+ code += 'cond1 = 0;\n'
+ else:
+ sys.exit('Decoder Failed: Float Compare Instruction Needs A Unordered Flag\n')
+ code += '} else {\n'
+ code += cond_code1
+ code += 'FCSR = genCCVector(FCSR, CC, cond1);}\n}\n'
+
+ code += 'if (code_block2) {'
+ code += '\tif (isNan(&Fs2.sf, 32) || isNan(&Ft2.sf, 32)) {\n'
+ if 'UnorderedTrue' in flags:
+ code += 'cond2 = 1;\n'
+ elif 'UnorderedFalse' in flags:
+ code += 'cond2 = 0;\n'
+ else:
+ sys.exit('Decoder Failed: Float Compare Instruction Needs A Unordered Flag\n')
+ code += '} else {\n'
+ code += cond_code2
+ code += 'FCSR = genCCVector(FCSR, CC, cond2);}\n}'
+
+ iop = InstObjParams(name, Name, 'FPCompareOp', CodeBlock(code))
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
diff --git a/src/arch/mips/isa/formats/int.isa b/src/arch/mips/isa/formats/int.isa
new file mode 100644
index 000000000..654dd8921
--- /dev/null
+++ b/src/arch/mips/isa/formats/int.isa
@@ -0,0 +1,269 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Integer operate instructions
+//
+output header {{
+#include <iostream>
+ /**
+ * Base class for integer operations.
+ */
+ class IntOp : public MipsStaticInst
+ {
+ protected:
+
+ /// Constructor
+ IntOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ MipsStaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+
+ class HiLoOp: public IntOp
+ {
+ protected:
+
+ /// Constructor
+ HiLoOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ IntOp(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+ class HiLoMiscOp: public HiLoOp
+ {
+ protected:
+
+ /// Constructor
+ HiLoMiscOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ HiLoOp(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+
+ class IntImmOp : public MipsStaticInst
+ {
+ protected:
+
+ int16_t imm;
+ int32_t sextImm;
+ uint32_t zextImm;
+
+ /// Constructor
+ IntImmOp(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ MipsStaticInst(mnem, _machInst, __opClass),imm(INTIMM),
+ sextImm(INTIMM),zextImm(0x0000FFFF & INTIMM)
+ {
+ //If Bit 15 is 1 then Sign Extend
+ int32_t temp = sextImm & 0x00008000;
+ if (temp > 0 && mnemonic != "lui") {
+ sextImm |= 0xFFFF0000;
+ }
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+
+
+ };
+
+}};
+
+// HiLo<Misc> instruction class execute method template.
+// Mainly to get instruction trace data to print out
+// correctly
+def template HiLoExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(code)s;
+
+ if(fault == NoFault)
+ {
+ %(op_wb)s;
+ //If there are 2 Destination Registers then
+ //concatenate the values for the traceData
+ if(traceData && _numDestRegs == 2) {
+ uint64_t hilo_final_val = (uint64_t)HI << 32 | LO;
+ traceData->setData(hilo_final_val);
+ }
+ }
+ return fault;
+ }
+}};
+
+//Outputs to decoder.cc
+output decoder {{
+ std::string IntOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ // just print the first dest... if there's a second one,
+ // it's generally implicit
+ if (_numDestRegs > 0) {
+ printReg(ss, _destRegIdx[0]);
+ ss << ", ";
+ }
+
+ // just print the first two source regs... if there's
+ // a third one, it's a read-modify-write dest (Rc),
+ // e.g. for CMOVxx
+ if (_numSrcRegs > 0) {
+ printReg(ss, _srcRegIdx[0]);
+ }
+
+ if (_numSrcRegs > 1) {
+ ss << ", ";
+ printReg(ss, _srcRegIdx[1]);
+ }
+
+ return ss.str();
+ }
+
+ std::string HiLoOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ //Destination Registers are implicit for HI/LO ops
+ if (_numSrcRegs > 0) {
+ printReg(ss, _srcRegIdx[0]);
+ }
+
+ if (_numSrcRegs > 1) {
+ ss << ", ";
+ printReg(ss, _srcRegIdx[1]);
+ }
+
+ return ss.str();
+ }
+
+ std::string HiLoMiscOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ if (_numDestRegs > 0 && _destRegIdx[0] < 32) {
+ printReg(ss, _destRegIdx[0]);
+ } else if (_numSrcRegs > 0 && _srcRegIdx[0] < 32) {
+ printReg(ss, _srcRegIdx[0]);
+ }
+
+ return ss.str();
+ }
+
+ std::string IntImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ std::stringstream ss;
+
+ ccprintf(ss, "%-10s ", mnemonic);
+
+ if (_numDestRegs > 0) {
+ printReg(ss, _destRegIdx[0]);
+ }
+
+ ss << ", ";
+
+ if (_numSrcRegs > 0) {
+ printReg(ss, _srcRegIdx[0]);
+ ss << ", ";
+ }
+
+ if( mnemonic == "lui")
+ ccprintf(ss, "0x%x ", sextImm);
+ else
+ ss << (int) sextImm;
+
+ return ss.str();
+ }
+
+}};
+
+def format IntOp(code, *opt_flags) {{
+ iop = InstObjParams(name, Name, 'IntOp', CodeBlock(code), opt_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = RegNopCheckDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format IntImmOp(code, *opt_flags) {{
+ iop = InstObjParams(name, Name, 'IntImmOp', CodeBlock(code), opt_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = ImmNopCheckDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format HiLoOp(code, *opt_flags) {{
+ if '.sd' in code:
+ code = 'int64_t ' + code
+ elif '.ud' in code:
+ code = 'uint64_t ' + code
+
+ code += 'HI = val<63:32>;\n'
+ code += 'LO = val<31:0>;\n'
+
+ iop = InstObjParams(name, Name, 'HiLoOp', CodeBlock(code), opt_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = HiLoExecute.subst(iop)
+}};
+
+def format HiLoMiscOp(code, *opt_flags) {{
+ iop = InstObjParams(name, Name, 'HiLoMiscOp', CodeBlock(code), opt_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = HiLoExecute.subst(iop)
+}};
+
+
+
+
+
diff --git a/src/arch/mips/isa/formats/mem.isa b/src/arch/mips/isa/formats/mem.isa
new file mode 100644
index 000000000..d6b0c2938
--- /dev/null
+++ b/src/arch/mips/isa/formats/mem.isa
@@ -0,0 +1,604 @@
+// -*- mode:c++ -*-
+
+// 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: Steve Reinhardt
+// Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Memory-format instructions
+//
+
+output header {{
+ /**
+ * Base class for general Mips memory-format instructions.
+ */
+ class Memory : public MipsStaticInst
+ {
+ protected:
+
+ /// Memory request flags. See mem_req_base.hh.
+ unsigned memAccessFlags;
+ /// Pointer to EAComp object.
+ const StaticInstPtr eaCompPtr;
+ /// Pointer to MemAcc object.
+ const StaticInstPtr memAccPtr;
+
+ /// Displacement for EA calculation (signed).
+ int32_t disp;
+
+ /// Constructor
+ Memory(const char *mnem, MachInst _machInst, OpClass __opClass,
+ StaticInstPtr _eaCompPtr = nullStaticInstPtr,
+ StaticInstPtr _memAccPtr = nullStaticInstPtr)
+ : MipsStaticInst(mnem, _machInst, __opClass),
+ memAccessFlags(0), eaCompPtr(_eaCompPtr), memAccPtr(_memAccPtr),
+ disp(sext<16>(OFFSET))
+ {
+ }
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+
+ public:
+
+ const StaticInstPtr &eaCompInst() const { return eaCompPtr; }
+ const StaticInstPtr &memAccInst() const { return memAccPtr; }
+ };
+
+ /**
+ * Base class for a few miscellaneous memory-format insts
+ * that don't interpret the disp field
+ */
+ class MemoryNoDisp : public Memory
+ {
+ protected:
+ /// Constructor
+ MemoryNoDisp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
+ StaticInstPtr _eaCompPtr = nullStaticInstPtr,
+ StaticInstPtr _memAccPtr = nullStaticInstPtr)
+ : Memory(mnem, _machInst, __opClass, _eaCompPtr, _memAccPtr)
+ {
+ }
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+}};
+
+
+output decoder {{
+ std::string
+ Memory::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ return csprintf("%-10s %c%d, %d(r%d)", mnemonic,
+ flags[IsFloating] ? 'f' : 'r', RT, disp, RS);
+ }
+
+ std::string
+ MemoryNoDisp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ return csprintf("%-10s %c%d, r%d(r%d)", mnemonic,
+ flags[IsFloating] ? 'f' : 'r',
+ flags[IsFloating] ? FD : RD,
+ RS, RT);
+ }
+}};
+
+def template LoadStoreDeclare {{
+ /**
+ * Static instruction class for "%(mnemonic)s".
+ */
+ class %(class_name)s : public %(base_class)s
+ {
+ protected:
+
+ /**
+ * "Fake" effective address computation class for "%(mnemonic)s".
+ */
+ class EAComp : public %(base_class)s
+ {
+ public:
+ /// Constructor
+ EAComp(MachInst machInst);
+
+ %(BasicExecDeclare)s
+ };
+
+ /**
+ * "Fake" memory access instruction class for "%(mnemonic)s".
+ */
+ class MemAcc : public %(base_class)s
+ {
+ public:
+ /// Constructor
+ MemAcc(MachInst machInst);
+
+ %(BasicExecDeclare)s
+ };
+
+ public:
+
+ /// Constructor.
+ %(class_name)s(MachInst machInst);
+
+ %(BasicExecDeclare)s
+
+ %(InitiateAccDeclare)s
+
+ %(CompleteAccDeclare)s
+ };
+}};
+
+
+def template InitiateAccDeclare {{
+ Fault initiateAcc(%(CPU_exec_context)s *, Trace::InstRecord *) const;
+}};
+
+
+def template CompleteAccDeclare {{
+ Fault completeAcc(Packet *, %(CPU_exec_context)s *, Trace::InstRecord *) const;
+}};
+
+
+def template LoadStoreConstructor {{
+ /** TODO: change op_class to AddrGenOp or something (requires
+ * creating new member of OpClass enum in op_class.hh, updating
+ * config files, etc.). */
+ inline %(class_name)s::EAComp::EAComp(MachInst machInst)
+ : %(base_class)s("%(mnemonic)s (EAComp)", machInst, IntAluOp)
+ {
+ %(ea_constructor)s;
+ }
+
+ inline %(class_name)s::MemAcc::MemAcc(MachInst machInst)
+ : %(base_class)s("%(mnemonic)s (MemAcc)", machInst, %(op_class)s)
+ {
+ %(memacc_constructor)s;
+ }
+
+ inline %(class_name)s::%(class_name)s(MachInst machInst)
+ : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
+ new EAComp(machInst), new MemAcc(machInst))
+ {
+ %(constructor)s;
+ }
+}};
+
+
+def template EACompExecute {{
+ Fault
+ %(class_name)s::EAComp::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(code)s;
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ xc->setEA(EA);
+ }
+
+ return fault;
+ }
+}};
+
+def template LoadMemAccExecute {{
+ Fault
+ %(class_name)s::MemAcc::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ EA = xc->getEA();
+
+ if (fault == NoFault) {
+ fault = xc->read(EA, (uint%(mem_acc_size)d_t&)Mem, memAccessFlags);
+ %(code)s;
+ }
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+
+ return fault;
+ }
+}};
+
+
+def template LoadExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(ea_code)s;
+
+ if (fault == NoFault) {
+ fault = xc->read(EA, (uint%(mem_acc_size)d_t&)Mem, memAccessFlags);
+ %(memacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+
+ return fault;
+ }
+}};
+
+
+def template LoadInitiateAcc {{
+ Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_src_decl)s;
+ %(op_rd)s;
+ %(ea_code)s;
+
+ if (fault == NoFault) {
+ fault = xc->read(EA, (uint%(mem_acc_size)d_t &)Mem, memAccessFlags);
+ }
+
+ return fault;
+ }
+}};
+
+
+def template LoadCompleteAcc {{
+ Fault %(class_name)s::completeAcc(Packet *pkt,
+ %(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+
+ Mem = pkt->get<typeof(Mem)>();
+
+ if (fault == NoFault) {
+ %(memacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+
+ return fault;
+ }
+}};
+
+
+def template StoreMemAccExecute {{
+ Fault
+ %(class_name)s::MemAcc::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+ uint64_t write_result = 0;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ EA = xc->getEA();
+
+ if (fault == NoFault) {
+ %(code)s;
+ }
+
+ if (fault == NoFault) {
+ fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA,
+ memAccessFlags, &write_result);
+ if (traceData) { traceData->setData(Mem); }
+ }
+
+ if (fault == NoFault) {
+ %(postacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+
+ return fault;
+ }
+}};
+
+
+def template StoreExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+ uint64_t write_result = 0;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(ea_code)s;
+
+ if (fault == NoFault) {
+ %(memacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA,
+ memAccessFlags, &write_result);
+ if (traceData) { traceData->setData(Mem); }
+ }
+
+ if (fault == NoFault) {
+ %(postacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+
+ return fault;
+ }
+}};
+
+def template StoreInitiateAcc {{
+ Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(ea_code)s;
+
+ if (fault == NoFault) {
+ %(memacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ fault = xc->write((uint%(mem_acc_size)d_t&)Mem, EA,
+ memAccessFlags, NULL);
+ if (traceData) { traceData->setData(Mem); }
+ }
+
+ return fault;
+ }
+}};
+
+
+def template StoreCompleteAcc {{
+ Fault %(class_name)s::completeAcc(Packet *pkt,
+ %(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_dest_decl)s;
+
+ if (fault == NoFault) {
+ %(postacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+
+ return fault;
+ }
+}};
+
+def template StoreCondCompleteAcc {{
+ Fault %(class_name)s::completeAcc(Packet *pkt,
+ %(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_dest_decl)s;
+
+ uint64_t write_result = pkt->req->getScResult();
+
+ if (fault == NoFault) {
+ %(postacc_code)s;
+ }
+
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+
+ return fault;
+ }
+}};
+
+
+def template MiscMemAccExecute {{
+ Fault %(class_name)s::MemAcc::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ EA = xc->getEA();
+
+ if (fault == NoFault) {
+ %(code)s;
+ }
+
+ return NoFault;
+ }
+}};
+
+def template MiscExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Addr EA;
+ Fault fault = NoFault;
+
+ %(fp_enable_check)s;
+ %(op_decl)s;
+ %(op_rd)s;
+ %(ea_code)s;
+
+ if (fault == NoFault) {
+ %(memacc_code)s;
+ }
+
+ return NoFault;
+ }
+}};
+
+def template MiscInitiateAcc {{
+ Fault %(class_name)s::initiateAcc(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ panic("Misc instruction does not support split access method!");
+ return NoFault;
+ }
+}};
+
+
+def template MiscCompleteAcc {{
+ Fault %(class_name)s::completeAcc(Packet *pkt,
+ %(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ panic("Misc instruction does not support split access method!");
+
+ return NoFault;
+ }
+}};
+
+def format LoadMemory(memacc_code, ea_code = {{ EA = Rs + disp; }},
+ mem_flags = [], inst_flags = []) {{
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ decode_template = ImmNopCheckDecode,
+ exec_template_base = 'Load')
+}};
+
+def format StoreMemory(memacc_code, ea_code = {{ EA = Rs + disp; }},
+ mem_flags = [], inst_flags = []) {{
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ exec_template_base = 'Store')
+}};
+
+def format LoadIndexedMemory(memacc_code, ea_code = {{ EA = Rs + Rt; }},
+ mem_flags = [], inst_flags = []) {{
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ decode_template = ImmNopCheckDecode,
+ exec_template_base = 'Load')
+}};
+
+def format StoreIndexedMemory(memacc_code, ea_code = {{ EA = Rs + Rt; }},
+ mem_flags = [], inst_flags = []) {{
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ exec_template_base = 'Store')
+}};
+
+def format LoadUnalignedMemory(memacc_code, ea_code = {{ EA = (Rs + disp) & ~3; }},
+ mem_flags = [], inst_flags = []) {{
+ decl_code = 'uint32_t mem_word = Mem.uw;\n'
+ decl_code += 'uint32_t unalign_addr = Rs + disp;\n'
+ decl_code += 'uint32_t byte_offset = unalign_addr & 3;\n'
+ decl_code += '#if BYTE_ORDER == BIG_ENDIAN\n'
+ decl_code += '\tbyte_offset ^= 3;\n'
+ decl_code += '#endif\n'
+
+ memacc_code = decl_code + memacc_code
+
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ decode_template = ImmNopCheckDecode,
+ exec_template_base = 'Load')
+}};
+
+def format StoreUnalignedMemory(memacc_code, ea_code = {{ EA = (Rs + disp) & ~3; }},
+ mem_flags = [], inst_flags = []) {{
+ decl_code = 'uint32_t mem_word = 0;\n'
+ decl_code += 'uint32_t unaligned_addr = Rs + disp;\n'
+ decl_code += 'uint32_t byte_offset = unaligned_addr & 3;\n'
+ decl_code += '#if BYTE_ORDER == BIG_ENDIAN\n'
+ decl_code += '\tbyte_offset ^= 3;\n'
+ decl_code += '#endif\n'
+ decl_code += 'fault = xc->read(EA, (uint32_t&)mem_word, memAccessFlags);\n'
+ memacc_code = decl_code + memacc_code + '\nMem = mem_word;\n'
+
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ exec_template_base = 'Store')
+}};
+
+def format Prefetch(ea_code = {{ EA = Rs + disp; }},
+ mem_flags = [], pf_flags = [], inst_flags = []) {{
+ pf_mem_flags = mem_flags + pf_flags + ['NO_FAULT']
+ pf_inst_flags = inst_flags + ['IsMemRef', 'IsLoad',
+ 'IsDataPrefetch', 'MemReadOp']
+
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code,
+ 'xc->prefetch(EA, memAccessFlags);',
+ pf_mem_flags, pf_inst_flags, exec_template_base = 'Misc')
+
+}};
+
+def format StoreCond(memacc_code, postacc_code,
+ ea_code = {{ EA = Rs + disp; }},
+ mem_flags = [], inst_flags = []) {{
+ (header_output, decoder_output, decode_block, exec_output) = \
+ LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ postacc_code, exec_template_base = 'StoreCond')
+}};
diff --git a/src/arch/mips/isa/formats/mt.isa b/src/arch/mips/isa/formats/mt.isa
new file mode 100644
index 000000000..96435f8c9
--- /dev/null
+++ b/src/arch/mips/isa/formats/mt.isa
@@ -0,0 +1,82 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// MT instructions
+//
+
+output header {{
+ /**
+ * Base class for MIPS MT ASE operations.
+ */
+ class MT : public MipsStaticInst
+ {
+ protected:
+
+ /// Constructor
+ MT(const char *mnem, MachInst _machInst, OpClass __opClass) :
+ MipsStaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+}};
+
+output decoder {{
+ //Edit This Template When MT is Implemented
+ std::string MT::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ return "Disassembly of MT instruction\n";
+ }
+}};
+
+def template MTExecute {{
+ //Edit This Template When MT is Implemented
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+ {
+ //Write the resulting state to the execution context
+ %(op_wb)s;
+
+ //Call into the trap handler with the appropriate fault
+ return No_Fault;
+ }
+}};
+
+// Primary format for integer operate instructions:
+def format MipsMT() {{
+ code = 'panic(\"Mips MT Is Currently Unimplemented.\");\n'
+ iop = InstObjParams(name, Name, 'MT', CodeBlock(code))
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
diff --git a/src/arch/mips/isa/formats/noop.isa b/src/arch/mips/isa/formats/noop.isa
new file mode 100644
index 000000000..7f3d313ad
--- /dev/null
+++ b/src/arch/mips/isa/formats/noop.isa
@@ -0,0 +1,139 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Nop
+//
+
+output header {{
+ /**
+ * Static instruction class for no-ops. This is a leaf class.
+ */
+ class Nop : public MipsStaticInst
+ {
+ /// Disassembly of original instruction.
+ const std::string originalDisassembly;
+
+ public:
+ /// Constructor
+ Nop(const std::string _originalDisassembly, MachInst _machInst)
+ : MipsStaticInst("nop", _machInst, No_OpClass),
+ originalDisassembly(_originalDisassembly)
+ {
+ flags[IsNop] = true;
+ }
+
+ ~Nop() { }
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+
+ %(BasicExecDeclare)s
+ };
+}};
+
+output decoder {{
+ std::string Nop::generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ return csprintf("%-10s %s", "nop", originalDisassembly);
+ }
+
+ /// Helper function for decoding nops. Substitute Nop object
+ /// for original inst passed in as arg (and delete latter).
+ inline
+ MipsStaticInst *
+ makeNop(MipsStaticInst *inst)
+ {
+ std::string nop_str = "(" + inst->disassemble(0) + ")";
+ MipsStaticInst *nop = new Nop(nop_str, inst->machInst);
+ delete inst;
+ return nop;
+ }
+}};
+
+output exec {{
+ Fault
+ Nop::execute(%(CPU_exec_context)s *, Trace::InstRecord *) const
+ {
+ return NoFault;
+ }
+}};
+
+// Int & FP operate instructions use RD as dest, so check for
+// RD == 0 to detect nops
+def template RegNopCheckDecode {{
+ {
+ MipsStaticInst *i = new %(class_name)s(machInst);
+ //if (RD == 0) {
+ //i = makeNop(i);
+ //}
+ return i;
+ }
+}};
+
+def template OperateNopCheckDecode {{
+ {
+ MipsStaticInst *i = new %(class_name)s(machInst);
+ //if (RD == 0) {
+ // i = makeNop(i);
+ //}
+ return i;
+ }
+}};
+
+// IntImm & Memory instructions use Rt as dest, so check for
+// Rt == 0 to detect nops
+def template ImmNopCheckDecode {{
+ {
+ MipsStaticInst *i = new %(class_name)s(machInst);
+ //if (RT == 0) {
+ // i = makeNop(i);
+ // }
+ return i;
+ }
+}};
+
+
+// Like BasicOperate format, but generates NOP if RC/FC == 31
+def format BasicOperateWithNopCheck(code, *opt_args) {{
+ iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code),
+ opt_args)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = OperateNopCheckDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
+
+def format Nop() {{
+ decode_block = 'return new Nop(\"\",machInst);\n'
+}};
+
diff --git a/src/arch/mips/isa/formats/tlbop.isa b/src/arch/mips/isa/formats/tlbop.isa
new file mode 100644
index 000000000..b974ccbed
--- /dev/null
+++ b/src/arch/mips/isa/formats/tlbop.isa
@@ -0,0 +1,80 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// TlbOp instructions
+//
+
+output header {{
+ /**
+ * Base class for integer operations.
+ */
+ class TlbOp : public MipsStaticInst
+ {
+ protected:
+
+ /// Constructor
+ TlbOp(const char *mnem, MachInst _machInst, OpClass __opClass) : MipsStaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+}};
+
+output decoder {{
+ std::string TlbOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ return "Disassembly of integer instruction\n";
+ }
+}};
+
+def template TlbOpExecute {{
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+ {
+ //Write the resulting state to the execution context
+ %(op_wb)s;
+
+ //Call into the trap handler with the appropriate fault
+ return No_Fault;
+ }
+}};
+
+// Primary format for integer operate instructions:
+def format TlbOp(code, *opt_flags) {{
+ orig_code = code
+ cblk = CodeBlock(code)
+ iop = InstObjParams(name, Name, 'MipsStaticInst', cblk, opt_flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecodeWithMnemonic.subst(iop)
+ exec_output = TlbOpExecute.subst(iop)
+}};
diff --git a/src/arch/mips/isa/formats/trap.isa b/src/arch/mips/isa/formats/trap.isa
new file mode 100644
index 000000000..b9066f374
--- /dev/null
+++ b/src/arch/mips/isa/formats/trap.isa
@@ -0,0 +1,81 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Trap instructions
+//
+
+output header {{
+ /**
+ * Base class for integer operations.
+ */
+ class Trap : public MipsStaticInst
+ {
+ protected:
+
+ /// Constructor
+ Trap(const char *mnem, MachInst _machInst, OpClass __opClass) : MipsStaticInst(mnem, _machInst, __opClass)
+ {
+ }
+
+ std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+}};
+
+output decoder {{
+ std::string Trap::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ return "Disassembly of trap instruction\n";
+ }
+}};
+
+def template TrapExecute {{
+ //Edit This Template When Traps Are Implemented
+ Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
+ {
+ //Write the resulting state to the execution context
+ %(op_wb)s;
+
+ //Call into the trap handler with the appropriate fault
+ return No_Fault;
+ }
+}};
+
+def format Trap(code, *flags) {{
+ code = 'warn(\"'
+ code += 'Trap Exception Handler Is Currently Not Implemented.'
+ code += '\");'
+ iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
+ header_output = BasicDeclare.subst(iop)
+ decoder_output = BasicConstructor.subst(iop)
+ decode_block = BasicDecode.subst(iop)
+ exec_output = BasicExecute.subst(iop)
+}};
diff --git a/src/arch/mips/isa/formats/unimp.isa b/src/arch/mips/isa/formats/unimp.isa
new file mode 100644
index 000000000..03068fa74
--- /dev/null
+++ b/src/arch/mips/isa/formats/unimp.isa
@@ -0,0 +1,145 @@
+// -*- mode:c++ -*-
+
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Unimplemented instructions
+//
+
+output header {{
+ /**
+ * Static instruction class for unimplemented instructions that
+ * cause simulator termination. Note that these are recognized
+ * (legal) instructions that the simulator does not support; the
+ * 'Unknown' class is used for unrecognized/illegal instructions.
+ * This is a leaf class.
+ */
+ class FailUnimplemented : public MipsStaticInst
+ {
+ public:
+ /// Constructor
+ FailUnimplemented(const char *_mnemonic, MachInst _machInst)
+ : MipsStaticInst(_mnemonic, _machInst, No_OpClass)
+ {
+ // don't call execute() (which panics) if we're on a
+ // speculative path
+ flags[IsNonSpeculative] = true;
+ }
+
+ %(BasicExecDeclare)s
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+
+ /**
+ * Base class for unimplemented instructions that cause a warning
+ * to be printed (but do not terminate simulation). This
+ * implementation is a little screwy in that it will print a
+ * warning for each instance of a particular unimplemented machine
+ * instruction, not just for each unimplemented opcode. Should
+ * probably make the 'warned' flag a static member of the derived
+ * class.
+ */
+ class WarnUnimplemented : public MipsStaticInst
+ {
+ private:
+ /// Have we warned on this instruction yet?
+ mutable bool warned;
+
+ public:
+ /// Constructor
+ WarnUnimplemented(const char *_mnemonic, MachInst _machInst)
+ : MipsStaticInst(_mnemonic, _machInst, No_OpClass), warned(false)
+ {
+ // don't call execute() (which panics) if we're on a
+ // speculative path
+ flags[IsNonSpeculative] = true;
+ }
+
+ %(BasicExecDeclare)s
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+}};
+
+output decoder {{
+ std::string
+ FailUnimplemented::generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ return csprintf("%-10s (unimplemented)", mnemonic);
+ }
+
+ std::string
+ WarnUnimplemented::generateDisassembly(Addr pc,
+ const SymbolTable *symtab) const
+ {
+ return csprintf("%-10s (unimplemented)", mnemonic);
+ }
+}};
+
+output exec {{
+ Fault
+ FailUnimplemented::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ panic("attempt to execute unimplemented instruction '%s' "
+ "(inst 0x%08x, opcode 0x%x, binary:%s)", mnemonic, machInst, OPCODE,
+ inst2string(machInst));
+ return new UnimplementedOpcodeFault;
+ }
+
+ Fault
+ WarnUnimplemented::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ if (!warned) {
+ warn("\tinstruction '%s' unimplemented\n", mnemonic);
+ warned = true;
+ }
+
+ return NoFault;
+ }
+}};
+
+
+def format FailUnimpl() {{
+ iop = InstObjParams(name, 'FailUnimplemented')
+ decode_block = BasicDecodeWithMnemonic.subst(iop)
+}};
+
+def format WarnUnimpl() {{
+ iop = InstObjParams(name, 'WarnUnimplemented')
+ decode_block = BasicDecodeWithMnemonic.subst(iop)
+}};
+
diff --git a/src/arch/mips/isa/formats/unknown.isa b/src/arch/mips/isa/formats/unknown.isa
new file mode 100644
index 000000000..70b3901e9
--- /dev/null
+++ b/src/arch/mips/isa/formats/unknown.isa
@@ -0,0 +1,84 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Unknown instructions
+//
+
+output header {{
+ /**
+ * Static instruction class for unknown (illegal) instructions.
+ * These cause simulator termination if they are executed in a
+ * non-speculative mode. This is a leaf class.
+ */
+ class Unknown : public MipsStaticInst
+ {
+ public:
+ /// Constructor
+ Unknown(MachInst _machInst)
+ : MipsStaticInst("unknown", _machInst, No_OpClass)
+ {
+ // don't call execute() (which panics) if we're on a
+ // speculative path
+ flags[IsNonSpeculative] = true;
+ }
+
+ %(BasicExecDeclare)s
+
+ std::string
+ generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+ };
+}};
+
+output decoder {{
+ std::string
+ Unknown::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+ {
+ return csprintf("%-10s (inst 0x%x, opcode 0x%x, binary:%s)",
+ "unknown", machInst, OPCODE, inst2string(machInst));
+ }
+}};
+
+output exec {{
+ Fault
+ Unknown::execute(%(CPU_exec_context)s *xc,
+ Trace::InstRecord *traceData) const
+ {
+ panic("attempt to execute unknown instruction "
+ "(inst 0x%08x, opcode 0x%x, binary: %s)", machInst, OPCODE, inst2string(machInst));
+ return new UnimplementedOpcodeFault;
+ }
+}};
+
+def format Unknown() {{
+ decode_block = 'return new Unknown(machInst);\n'
+}};
+
diff --git a/src/arch/mips/isa/formats/util.isa b/src/arch/mips/isa/formats/util.isa
new file mode 100644
index 000000000..73164bc0d
--- /dev/null
+++ b/src/arch/mips/isa/formats/util.isa
@@ -0,0 +1,189 @@
+// -*- mode:c++ -*-
+
+// 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: Steve Reinhardt
+// Korey Sewell
+
+let {{
+def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
+ postacc_code = '', base_class = 'Memory',
+ decode_template = BasicDecode, exec_template_base = ''):
+ # Make sure flags are in lists (convert to lists if not).
+ mem_flags = makeList(mem_flags)
+ inst_flags = makeList(inst_flags)
+
+ # add hook to get effective addresses into execution trace output.
+ ea_code += '\nif (traceData) { traceData->setAddr(EA); }\n'
+
+ # generate code block objects
+ ea_cblk = CodeBlock(ea_code)
+ memacc_cblk = CodeBlock(memacc_code)
+ postacc_cblk = CodeBlock(postacc_code)
+
+ # Some CPU models execute the memory operation as an atomic unit,
+ # while others want to separate them into an effective address
+ # computation and a memory access operation. As a result, we need
+ # to generate three StaticInst objects. Note that the latter two
+ # are nested inside the larger "atomic" one.
+
+ # generate InstObjParams for EAComp object
+ ea_iop = InstObjParams(name, Name, base_class, ea_cblk, inst_flags)
+
+ # generate InstObjParams for MemAcc object
+ memacc_iop = InstObjParams(name, Name, base_class, memacc_cblk, inst_flags)
+ # in the split execution model, the MemAcc portion is responsible
+ # for the post-access code.
+ memacc_iop.postacc_code = postacc_cblk.code
+
+ # generate InstObjParams for InitiateAcc, CompleteAcc object
+ # The code used depends on the template being used
+ if (exec_template_base == 'Load'):
+ initiateacc_cblk = CodeBlock(ea_code + memacc_code)
+ completeacc_cblk = CodeBlock(memacc_code + postacc_code)
+ elif (exec_template_base.startswith('Store')):
+ initiateacc_cblk = CodeBlock(ea_code + memacc_code)
+ completeacc_cblk = CodeBlock(postacc_code)
+ else:
+ initiateacc_cblk = ''
+ completeacc_cblk = ''
+
+ initiateacc_iop = InstObjParams(name, Name, base_class, initiateacc_cblk,
+ inst_flags)
+
+ completeacc_iop = InstObjParams(name, Name, base_class, completeacc_cblk,
+ inst_flags)
+
+ if (exec_template_base == 'Load'):
+ initiateacc_iop.ea_code = ea_cblk.code
+ initiateacc_iop.memacc_code = memacc_cblk.code
+ completeacc_iop.memacc_code = memacc_cblk.code
+ completeacc_iop.postacc_code = postacc_cblk.code
+ elif (exec_template_base.startswith('Store')):
+ initiateacc_iop.ea_code = ea_cblk.code
+ initiateacc_iop.memacc_code = memacc_cblk.code
+ completeacc_iop.postacc_code = postacc_cblk.code
+
+ # generate InstObjParams for unified execution
+ cblk = CodeBlock(ea_code + memacc_code + postacc_code)
+ iop = InstObjParams(name, Name, base_class, cblk, inst_flags)
+
+ iop.ea_constructor = ea_cblk.constructor
+ iop.ea_code = ea_cblk.code
+ iop.memacc_constructor = memacc_cblk.constructor
+ iop.memacc_code = memacc_cblk.code
+ iop.postacc_code = postacc_cblk.code
+
+ if mem_flags:
+ s = '\n\tmemAccessFlags = ' + string.join(mem_flags, '|') + ';'
+ iop.constructor += s
+ memacc_iop.constructor += s
+
+ # select templates
+
+ # define aliases... most StoreCond templates are the same as the
+ # corresponding Store templates (only CompleteAcc is different).
+ StoreCondMemAccExecute = StoreMemAccExecute
+ StoreCondExecute = StoreExecute
+ StoreCondInitiateAcc = StoreInitiateAcc
+
+ memAccExecTemplate = eval(exec_template_base + 'MemAccExecute')
+ fullExecTemplate = eval(exec_template_base + 'Execute')
+ initiateAccTemplate = eval(exec_template_base + 'InitiateAcc')
+ completeAccTemplate = eval(exec_template_base + 'CompleteAcc')
+
+ # (header_output, decoder_output, decode_block, exec_output)
+ return (LoadStoreDeclare.subst(iop), LoadStoreConstructor.subst(iop),
+ decode_template.subst(iop),
+ EACompExecute.subst(ea_iop)
+ + memAccExecTemplate.subst(memacc_iop)
+ + fullExecTemplate.subst(iop)
+ + initiateAccTemplate.subst(initiateacc_iop)
+ + completeAccTemplate.subst(completeacc_iop))
+}};
+output header {{
+ std::string inst2string(MachInst machInst);
+}};
+
+output decoder {{
+
+std::string inst2string(MachInst machInst)
+{
+ std::string str = "";
+ uint32_t mask = 0x80000000;
+
+ for(int i=0; i < 32; i++) {
+ if ((machInst & mask) == 0) {
+ str += "0";
+ } else {
+ str += "1";
+ }
+
+ mask = mask >> 1;
+ }
+
+ return str;
+}
+
+}};
+output exec {{
+
+ using namespace MipsISA;
+
+ /// CLEAR ALL CPU INST/EXE HAZARDS
+ inline void
+ clear_exe_inst_hazards()
+ {
+ //CODE HERE
+ }
+
+
+ /// Check "FP enabled" machine status bit. Called when executing any FP
+ /// instruction in full-system mode.
+ /// @retval Full-system mode: NoFault if FP is enabled, FenFault
+ /// if not. Non-full-system mode: always returns NoFault.
+#if FULL_SYSTEM
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ Fault fault = NoFault; // dummy... this ipr access should not fault
+ if (!Mips34k::ICSR_FPE(xc->readIpr(MipsISA::IPR_ICSR, fault))) {
+ fault = FloatEnableFault;
+ }
+ return fault;
+ }
+#else
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ return NoFault;
+ }
+#endif
+
+
+
+}};
+
+
diff --git a/src/arch/mips/isa/includes.isa b/src/arch/mips/isa/includes.isa
new file mode 100644
index 000000000..f58c8adaa
--- /dev/null
+++ b/src/arch/mips/isa/includes.isa
@@ -0,0 +1,82 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// Output include file directives.
+//
+
+output header {{
+#include <sstream>
+#include <iostream>
+#include <iomanip>
+
+#include "cpu/static_inst.hh"
+#include "arch/mips/isa_traits.hh"
+}};
+
+output decoder {{
+#include "arch/mips/isa_traits.hh"
+#include "base/cprintf.hh"
+#include "base/loader/symtab.hh"
+#include "cpu/thread_context.hh"
+#include "arch/mips/faults.hh"
+#include "arch/mips/isa_traits.hh"
+#include "arch/mips/utility.hh"
+
+#include <math.h>
+#if defined(linux)
+#include <fenv.h>
+#endif
+
+using namespace MipsISA;
+}};
+
+output exec {{
+#include "arch/mips/faults.hh"
+#include "arch/mips/isa_traits.hh"
+#include "arch/mips/utility.hh"
+
+#include <math.h>
+#if defined(linux)
+#include <fenv.h>
+#endif
+
+#ifdef FULL_SYSTEM
+//#include "arch/alpha/pseudo_inst.hh"
+#endif
+#include "cpu/base.hh"
+#include "cpu/exetrace.hh"
+#include "sim/sim_exit.hh"
+#include "mem/packet_impl.hh"
+
+using namespace MipsISA;
+}};
+
diff --git a/src/arch/mips/isa/main.isa b/src/arch/mips/isa/main.isa
new file mode 100644
index 000000000..2d7c63cd5
--- /dev/null
+++ b/src/arch/mips/isa/main.isa
@@ -0,0 +1,61 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+////////////////////////////////////////////////////////////////////
+//
+// MIPS ISA description file.
+//
+////////////////////////////////////////////////////////////////////
+
+//Include the C++ include directives
+##include "includes.isa"
+
+////////////////////////////////////////////////////////////////////
+//
+// Namespace statement. Everything below this line will be in the
+// MipsISAInst namespace.
+//
+
+namespace MipsISA;
+
+//Include the bitfield definitions
+##include "bitfields.isa"
+
+//Include the operand_types and operand definitions
+##include "operands.isa"
+
+//Include the base class for mips instructions, and some support code
+##include "base.isa"
+
+//Include the definitions for the instruction formats
+##include "formats/formats.isa"
+
+//Include the decoder definition
+##include "decoder.isa"
diff --git a/src/arch/mips/isa/operands.isa b/src/arch/mips/isa/operands.isa
new file mode 100644
index 000000000..3843dc053
--- /dev/null
+++ b/src/arch/mips/isa/operands.isa
@@ -0,0 +1,91 @@
+// -*- mode:c++ -*-
+
+// 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: Korey Sewell
+
+def operand_types {{
+ 'sb' : ('signed int', 8),
+ 'ub' : ('unsigned int', 8),
+ 'sh' : ('signed int', 16),
+ 'uh' : ('unsigned int', 16),
+ 'sw' : ('signed int', 32),
+ 'uw' : ('unsigned int', 32),
+ 'sd' : ('signed int', 64),
+ 'ud' : ('unsigned int', 64),
+ 'sf' : ('float', 32),
+ 'df' : ('float', 64),
+ 'qf' : ('float', 128)
+}};
+
+def operands {{
+ #General Purpose Integer Reg Operands
+ 'Rd': ('IntReg', 'uw', 'RD', 'IsInteger', 1),
+ 'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 2),
+ 'Rt': ('IntReg', 'uw', 'RT', 'IsInteger', 3),
+
+ #Operands used for Link or Syscall Insts
+ 'R31': ('IntReg', 'uw','31','IsInteger', 4),
+ 'R2': ('IntReg', 'uw','2', 'IsInteger', 5),
+
+ #Special Integer Reg operands
+ 'HI': ('IntReg', 'uw','MipsISA::HI', 'IsInteger', 6),
+ 'LO': ('IntReg', 'uw','MipsISA::LO', 'IsInteger', 7),
+
+ #Immediate Value operand
+ 'IntImm': ('IntReg', 'uw', 'INTIMM', 'IsInteger', 3),
+
+ #Floating Point Reg Operands
+ 'Fd': ('FloatReg', 'sf', 'FD', 'IsFloating', 1),
+ 'Fs': ('FloatReg', 'sf', 'FS', 'IsFloating', 2),
+ 'Ft': ('FloatReg', 'sf', 'FT', 'IsFloating', 3),
+ 'Fr': ('FloatReg', 'sf', 'FR', 'IsFloating', 3),
+
+ #Special Floating Point Control Reg Operands
+ 'FIR': ('FloatReg', 'uw', 'MipsISA::FIR', 'IsFloating', 1),
+ 'FCCR': ('FloatReg', 'uw', 'MipsISA::FCCR', 'IsFloating', 2),
+ 'FEXR': ('FloatReg', 'uw', 'MipsISA::FEXR', 'IsFloating', 3),
+ 'FENR': ('FloatReg', 'uw', 'MipsISA::FENR', 'IsFloating', 3),
+ 'FCSR': ('FloatReg', 'uw', 'MipsISA::FCSR', 'IsFloating', 3),
+
+ #Operands For Paired Singles FP Operations
+ 'Fd1': ('FloatReg', 'sf', 'FD', 'IsFloating', 4),
+ 'Fd2': ('FloatReg', 'sf', 'FD+1', 'IsFloating', 4),
+ 'Fs1': ('FloatReg', 'sf', 'FS', 'IsFloating', 5),
+ 'Fs2': ('FloatReg', 'sf', 'FS+1', 'IsFloating', 5),
+ 'Ft1': ('FloatReg', 'sf', 'FT', 'IsFloating', 6),
+ 'Ft2': ('FloatReg', 'sf', 'FT+1', 'IsFloating', 6),
+ 'Fr1': ('FloatReg', 'sf', 'FR', 'IsFloating', 7),
+ 'Fr2': ('FloatReg', 'sf', 'FR+1', 'IsFloating', 7),
+
+ #Memory Operand
+ 'Mem': ('Mem', 'uw', None, ('IsMemRef', 'IsLoad', 'IsStore'), 4),
+
+ #Program Counter Operands
+ 'NPC': ('NPC', 'uw', None, ( None, None, 'IsControl' ), 4),
+ 'NNPC':('NNPC', 'uw', None, ( None, None, 'IsControl' ), 4)
+}};
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-27 19:37:04 +0000