+//===----------------------------------------------------------------------===//
+// MicroMIPS Base Classes
+//===----------------------------------------------------------------------===//
+
+//
+// Base class for MicroMips instructions.
+// This class does not depend on the instruction size.
+//
+class MicroMipsInstBase<dag outs, dag ins, string asmstr, list<dag> pattern,
+ InstrItinClass itin, Format f> : Instruction
+{
+ let Namespace = "Mips";
+ let DecoderNamespace = "MicroMips";
+
+ let OutOperandList = outs;
+ let InOperandList = ins;
+
+ let AsmString = asmstr;
+ let Pattern = pattern;
+ let Itinerary = itin;
+
+ let Predicates = [InMicroMips];
+
+ Format Form = f;
+}
+
+//
+// Base class for MicroMIPS 16-bit instructions.
+//
+class MicroMipsInst16<dag outs, dag ins, string asmstr, list<dag> pattern,
+ InstrItinClass itin, Format f> :
+ MicroMipsInstBase<outs, ins, asmstr, pattern, itin, f>
+{
+ let Size = 2;
+ field bits<16> Inst;
+ field bits<16> SoftFail = 0;
+ bits<6> Opcode = 0x0;
+}
+
+//===----------------------------------------------------------------------===//
+// MicroMIPS 16-bit Instruction Formats
+//===----------------------------------------------------------------------===//
+
+class MOVE_FM_MM16<bits<6> funct> {
+ bits<5> rs;
+ bits<5> rd;
+
+ bits<16> Inst;
+
+ let Inst{15-10} = funct;
+ let Inst{9-5} = rd;
+ let Inst{4-0} = rs;
+}
+
+class JALR_FM_MM16<bits<5> op> {
+ bits<5> rs;
+
+ bits<16> Inst;
+
+ let Inst{15-10} = 0x11;
+ let Inst{9-5} = op;
+ let Inst{4-0} = rs;
+}
+
+class MFHILO_FM_MM16<bits<5> funct> {
+ bits<5> rd;
+
+ bits<16> Inst;
+
+ let Inst{15-10} = 0x11;
+ let Inst{9-5} = funct;
+ let Inst{4-0} = rd;
+}
+
+//===----------------------------------------------------------------------===//
+// MicroMIPS 32-bit Instruction Formats
+//===----------------------------------------------------------------------===//
+
class MMArch {
string Arch = "micromips";
list<dag> Pattern = [];
let Inst{5-0} = 0x3c;
}
-class JALR_FM_MM<bits<10> funct> : MMArch {
+class JALR_FM_MM<bits<10> funct> {
bits<5> rs;
bits<5> rd;
let Inst{5-0} = 0x3c;
}
-class WAIT_FM_MM : MMArch {
+class WAIT_FM_MM {
+ bits<10> code_;
bits<32> Inst;
let Inst{31-26} = 0x00;
- let Inst{25-16} = 0x00;
+ let Inst{25-16} = code_;
let Inst{15-6} = 0x24d;
let Inst{5-0} = 0x3c;
}