+class VXForm_3<bits<11> xo, dag OL, string asmstr,
+ InstrItinClass itin, list<dag> pattern>
+ : I<4, OL, asmstr, itin> {
+ bits<5> VD;
+ bits<5> IMM;
+
+ let Pattern = pattern;
+
+ let Inst{6-10} = VD;
+ let Inst{11-15} = IMM;
+ let Inst{16-20} = 0;
+ let Inst{21-31} = xo;
+}
+
+/// VXForm_4 - VX instructions with "VD,0,0" register fields, like mfvscr.
+class VXForm_4<bits<11> xo, dag OL, string asmstr,
+ InstrItinClass itin, list<dag> pattern>
+ : I<4, OL, asmstr, itin> {
+ bits<5> VD;
+
+ let Pattern = pattern;
+
+ let Inst{6-10} = VD;
+ let Inst{11-15} = 0;
+ let Inst{16-20} = 0;
+ let Inst{21-31} = xo;
+}
+
+/// VXForm_5 - VX instructions with "0,0,VB" register fields, like mtvscr.
+class VXForm_5<bits<11> xo, dag OL, string asmstr,
+ InstrItinClass itin, list<dag> pattern>
+ : I<4, OL, asmstr, itin> {
+ bits<5> VB;
+
+ let Pattern = pattern;
+
+ let Inst{6-10} = 0;
+ let Inst{11-15} = 0;
+ let Inst{16-20} = VB;
+ let Inst{21-31} = xo;
+}
+