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Diffstat (limited to 'lib/Target/MBlaze/MBlazeInstrFormats.td')
| -rw-r--r-- | lib/Target/MBlaze/MBlazeInstrFormats.td | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/lib/Target/MBlaze/MBlazeInstrFormats.td b/lib/Target/MBlaze/MBlazeInstrFormats.td new file mode 100644 index 0000000000..7d655433d4 --- /dev/null +++ b/lib/Target/MBlaze/MBlazeInstrFormats.td @@ -0,0 +1,246 @@ +//===- MBlazeInstrFormats.td - MB Instruction defs --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +//===----------------------------------------------------------------------===// +// Describe MBlaze instructions format +// +// CPU INSTRUCTION FORMATS +// +// opcode - operation code. +// rd - dst reg. +// ra - first src. reg. +// rb - second src. reg. +// imm16 - 16-bit immediate value. +// +//===----------------------------------------------------------------------===// + +// Generic MBlaze Format +class MBlazeInst<dag outs, dag ins, string asmstr, list<dag> pattern, + InstrItinClass itin> : Instruction +{ + field bits<32> Inst; + + let Namespace = "MBlaze"; + + bits<6> opcode; + + // Top 6 bits are the 'opcode' field + let Inst{0-5} = opcode; + + dag OutOperandList = outs; + dag InOperandList = ins; + + let AsmString = asmstr; + let Pattern = pattern; + let Itinerary = itin; +} + +//===----------------------------------------------------------------------===// +// Pseudo instruction class +//===----------------------------------------------------------------------===// +class MBlazePseudo<dag outs, dag ins, string asmstr, list<dag> pattern>: + MBlazeInst<outs, ins, asmstr, pattern, IIPseudo>; + +//===----------------------------------------------------------------------===// +// Type A instruction class in MBlaze : <|opcode|rd|ra|rb|flags|> +//===----------------------------------------------------------------------===// + +class TA<bits<6> op, bits<11> flags, dag outs, dag ins, string asmstr, + list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> rd; + bits<5> ra; + bits<5> rb; + + let opcode = op; + + let Inst{6-10} = rd; + let Inst{11-15} = ra; + let Inst{16-20} = rb; + let Inst{21-31} = flags; +} + +class TAI<bits<6> op, dag outs, dag ins, string asmstr, + list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> rd; + bits<5> ra; + bits<16> imm16; + + let opcode = op; + + let Inst{6-10} = rd; + let Inst{11-15} = ra; + let Inst{16-31} = imm16; +} + +class TIMM<bits<6> op, dag outs, dag ins, string asmstr, + list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> ra; + bits<16> imm16; + + let opcode = op; + + let Inst{6-15} = 0; + let Inst{16-31} = imm16; +} + +class TADDR<bits<6> op, dag outs, dag ins, string asmstr, + list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<26> addr; + + let opcode = op; + + let Inst{6-31} = addr; +} + +//===----------------------------------------------------------------------===// +// Type B instruction class in MBlaze : <|opcode|rd|ra|immediate|> +//===----------------------------------------------------------------------===// + +class TB<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern, + InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> rd; + bits<5> ra; + bits<16> imm16; + + let opcode = op; + + let Inst{6-10} = rd; + let Inst{11-15} = ra; + let Inst{16-31} = imm16; +} + +//===----------------------------------------------------------------------===// +// Float instruction class in MBlaze : <|opcode|rd|ra|flags|> +//===----------------------------------------------------------------------===// + +class TF<bits<6> op, bits<11> flags, dag outs, dag ins, string asmstr, + list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> rd; + bits<5> ra; + + let opcode = op; + + let Inst{6-10} = rd; + let Inst{11-15} = ra; + let Inst{16-20} = 0; + let Inst{21-31} = flags; +} + +//===----------------------------------------------------------------------===// +// Branch instruction class in MBlaze : <|opcode|rd|br|ra|flags|> +//===----------------------------------------------------------------------===// + +class TBR<bits<6> op, bits<5> br, bits<11> flags, dag outs, dag ins, + string asmstr, list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> ra; + + let opcode = op; + + let Inst{6-10} = 0; + let Inst{11-15} = br; + let Inst{16-20} = ra; + let Inst{21-31} = flags; +} + +class TBRC<bits<6> op, bits<5> br, bits<11> flags, dag outs, dag ins, + string asmstr, list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> ra; + bits<5> rb; + + let opcode = op; + + let Inst{6-10} = br; + let Inst{11-15} = ra; + let Inst{16-20} = rb; + let Inst{21-31} = flags; +} + +class TBRL<bits<6> op, bits<5> br, bits<11> flags, dag outs, dag ins, + string asmstr, list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> ra; + + let opcode = op; + + let Inst{6-10} = 0xF; + let Inst{11-15} = br; + let Inst{16-20} = ra; + let Inst{21-31} = flags; +} + +class TBRI<bits<6> op, bits<5> br, dag outs, dag ins, + string asmstr, list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<16> imm16; + + let opcode = op; + + let Inst{6-10} = 0; + let Inst{11-15} = br; + let Inst{16-31} = imm16; +} + +class TBRLI<bits<6> op, bits<5> br, dag outs, dag ins, + string asmstr, list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<16> imm16; + + let opcode = op; + + let Inst{6-10} = 0xF; + let Inst{11-15} = br; + let Inst{16-31} = imm16; +} + +class TBRCI<bits<6> op, bits<5> br, dag outs, dag ins, + string asmstr, list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> ra; + bits<16> imm16; + + let opcode = op; + + let Inst{6-10} = br; + let Inst{11-15} = ra; + let Inst{16-31} = imm16; +} + +class TRET<bits<6> op, dag outs, dag ins, + string asmstr, list<dag> pattern, InstrItinClass itin> : + MBlazeInst<outs, ins, asmstr, pattern, itin> +{ + bits<5> ra; + bits<16> imm16; + + let opcode = op; + + let Inst{6-10} = 0x10; + let Inst{11-15} = ra; + let Inst{16-31} = imm16; +} |