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class MMArch {
string Arch = "micromips";
list<dag> Pattern = [];
}
class ADD_FM_MM<bits<6> op, bits<10> funct> : MMArch {
bits<5> rt;
bits<5> rs;
bits<5> rd;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-11} = rd;
let Inst{10} = 0;
let Inst{9-0} = funct;
}
class ADDI_FM_MM<bits<6> op> : MMArch {
bits<5> rs;
bits<5> rt;
bits<16> imm16;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-0} = imm16;
}
class SLTI_FM_MM<bits<6> op> : MMArch {
bits<5> rt;
bits<5> rs;
bits<16> imm16;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rs;
let Inst{20-16} = rt;
let Inst{15-0} = imm16;
}
class LUI_FM_MM : MMArch {
bits<5> rt;
bits<16> imm16;
bits<32> Inst;
let Inst{31-26} = 0x10;
let Inst{25-21} = 0xd;
let Inst{20-16} = rt;
let Inst{15-0} = imm16;
}
class MULT_FM_MM<bits<10> funct> : MMArch {
bits<5> rs;
bits<5> rt;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class SRA_FM_MM<bits<10> funct, bit rotate> : MMArch {
bits<5> rd;
bits<5> rt;
bits<5> shamt;
bits<32> Inst;
let Inst{31-26} = 0;
let Inst{25-21} = rd;
let Inst{20-16} = rt;
let Inst{15-11} = shamt;
let Inst{10} = rotate;
let Inst{9-0} = funct;
}
class SRLV_FM_MM<bits<10> funct, bit rotate> : MMArch {
bits<5> rd;
bits<5> rt;
bits<5> rs;
bits<32> Inst;
let Inst{31-26} = 0;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-11} = rd;
let Inst{10} = rotate;
let Inst{9-0} = funct;
}
class LW_FM_MM<bits<6> op> : MMArch {
bits<5> rt;
bits<21> addr;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = addr{20-16};
let Inst{15-0} = addr{15-0};
}
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