let Predicates = [HasDSP];
}
-class PseudoDSP<dag outs, dag ins, list<dag> pattern>:
- MipsPseudo<outs, ins, "", pattern> {
+class PseudoDSP<dag outs, dag ins, list<dag> pattern,
+ InstrItinClass itin = IIPseudo>:
+ MipsPseudo<outs, ins, pattern, itin> {
let Predicates = [HasDSP];
}
let Inst{5-0} = 0b010011;
}
+// LX sub-class format.
+class LX_FMT<bits<5> op> : DSPInst {
+ bits<5> rd;
+ bits<5> base;
+ bits<5> index;
+
+ let Opcode = SPECIAL3_OPCODE.V;
+
+ let Inst{25-21} = base;
+ let Inst{20-16} = index;
+ let Inst{15-11} = rd;
+ let Inst{10-6} = op;
+ let Inst{5-0} = 0b001010;
+}
+
+// ADDUH.QB sub-class format.
+class ADDUH_QB_FMT<bits<5> op> : DSPInst {
+ bits<5> rd;
+ bits<5> rs;
+ bits<5> rt;
+
+ let Opcode = SPECIAL3_OPCODE.V;
+
+ let Inst{25-21} = rs;
+ let Inst{20-16} = rt;
+ let Inst{15-11} = rd;
+ let Inst{10-6} = op;
+ let Inst{5-0} = 0b011000;
+}
+
+// APPEND sub-class format.
+class APPEND_FMT<bits<5> op> : DSPInst {
+ bits<5> rt;
+ bits<5> rs;
+ bits<5> sa;
+
+ let Opcode = SPECIAL3_OPCODE.V;
+
+ let Inst{25-21} = rs;
+ let Inst{20-16} = rt;
+ let Inst{15-11} = sa;
+ let Inst{10-6} = op;
+ let Inst{5-0} = 0b110001;
+}
+
// DPA.W.PH sub-class format.
class DPA_W_PH_FMT<bits<5> op> : DSPInst {
bits<2> ac;
let Inst{5-0} = funct;
}
+// MFHI sub-class format.
+class MFHI_FMT<bits<6> funct> : DSPInst {
+ bits<5> rd;
+ bits<2> ac;
+
+ let Inst{31-26} = 0;
+ let Inst{25-23} = 0;
+ let Inst{22-21} = ac;
+ let Inst{20-16} = 0;
+ let Inst{15-11} = rd;
+ let Inst{10-6} = 0;
+ let Inst{5-0} = funct;
+}
+
+// MTHI sub-class format.
+class MTHI_FMT<bits<6> funct> : DSPInst {
+ bits<5> rs;
+ bits<2> ac;
+
+ let Inst{31-26} = 0;
+ let Inst{25-21} = rs;
+ let Inst{20-13} = 0;
+ let Inst{12-11} = ac;
+ let Inst{10-6} = 0;
+ let Inst{5-0} = funct;
+}
+
// EXTR.W sub-class format (type 1).
class EXTR_W_TY1_FMT<bits<5> op> : DSPInst {
bits<5> rt;
let Inst{5-0} = 0b111000;
}
+class WRDSP_FMT<bits<5> op> : DSPInst {
+ bits<5> rs;
+ bits<10> mask;
+
+ let Opcode = SPECIAL3_OPCODE.V;
+
+ let Inst{25-21} = rs;
+ let Inst{20-11} = mask;
+ let Inst{10-6} = op;
+ let Inst{5-0} = 0b111000;
+}
+
class BPOSGE32_FMT<bits<5> op> : DSPInst {
bits<16> offset;
let Inst{20-16} = op;
let Inst{15-0} = offset;
}
+
+// INSV sub-class format.
+class INSV_FMT<bits<6> op> : DSPInst {
+ bits<5> rt;
+ bits<5> rs;
+
+ let Opcode = SPECIAL3_OPCODE.V;
+
+ let Inst{25-21} = rs;
+ let Inst{20-16} = rt;
+ let Inst{15-6} = 0;
+ let Inst{5-0} = op;
+}