RV32IMACFD_ZifenceiInstr.cpp

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#include "RV32IMACFDArch.h"
#include "RV32IMACFDFuncs.h"
 
using namespace etiss;
using namespace etiss::instr;
 
 
// FENCE_I ---------------------------------------------------------------------
static InstructionDefinition fence_i_rd_rs1_imm (
        ISA32_RV32IMACFD,
        "fence_i",
        (uint32_t) 0x00100f,
        (uint32_t) 0x00707f,
        [] (BitArray & ba,etiss::CodeSet & cs,InstructionContext & ic)
        {
 
// -----------------------------------------------------------------------------
 
// -----------------------------------------------------------------------------
 
// -----------------------------------------------------------------------------
etiss_uint8 rd = 0;
static BitArrayRange R_rd_0(11, 7);
rd += R_rd_0.read(ba) << 0;
etiss_uint8 rs1 = 0;
static BitArrayRange R_rs1_0(19, 15);
rs1 += R_rs1_0.read(ba) << 0;
etiss_uint16 imm = 0;
static BitArrayRange R_imm_0(31, 20);
imm += R_imm_0.read(ba) << 0;
 
// -----------------------------------------------------------------------------
 
        {
                CodePart & cp = cs.append(CodePart::INITIALREQUIRED);
 
                cp.code() = std::string("//FENCE_I\n");
 
// -----------------------------------------------------------------------------
cp.code() += "cpu->exception = ETISS_RETURNCODE_RELOADBLOCKS;\n";
{ // block
cp.code() += "{ // block\n";
cp.code() += "cpu->nextPc = " + std::to_string(ic.current_address_ + 4) + "ULL;\n";
cp.code() += "} // block\n";
} // block
cp.code() += "((RV32IMACFD*)cpu)->FENCE[1ULL] = " + std::to_string(imm) + "ULL;\n";
cp.code() += "instr_exit_" + std::to_string(ic.current_address_) + ":\n";
cp.code() += "cpu->instructionPointer = cpu->nextPc;\n";
// -----------------------------------------------------------------------------
                cp.getAffectedRegisters().add("instructionPointer", 32);
        }
        {
                CodePart & cp = cs.append(CodePart::APPENDEDRETURNINGREQUIRED);
 
                cp.code() = std::string("//FENCE_I\n");
 
// -----------------------------------------------------------------------------
cp.code() += "return cpu->exception;\n";
// -----------------------------------------------------------------------------
        }
 
                return true;
        },
        0,
        [] (BitArray & ba, Instruction & instr)
        {
// -----------------------------------------------------------------------------
etiss_uint8 rd = 0;
static BitArrayRange R_rd_0(11, 7);
rd += R_rd_0.read(ba) << 0;
etiss_uint8 rs1 = 0;
static BitArrayRange R_rs1_0(19, 15);
rs1 += R_rs1_0.read(ba) << 0;
etiss_uint16 imm = 0;
static BitArrayRange R_imm_0(31, 20);
imm += R_imm_0.read(ba) << 0;
 
// -----------------------------------------------------------------------------
 
                std::stringstream ss;
// -----------------------------------------------------------------------------
ss << "fence_i" << " # " << ba << (" [rd=" + std::to_string(rd) + " | rs1=" + std::to_string(rs1) + " | imm=" + std::to_string(imm) + "]");
// -----------------------------------------------------------------------------
                return ss.str();
        }
);