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ExpandIntegerOperand (LegalizeIntegerTypes.cpp) is needed which is yet to be reworked and submitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59617 91177308-0d34-0410-b5e6-96231b3b80d8
118 lines
3.5 KiB
TableGen
118 lines
3.5 KiB
TableGen
//===- PIC16InstrFormats.td - PIC16 Instruction Formats-------*- tblgen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Describe PIC16 instructions format
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//
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// All the possible PIC16 fields are:
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//
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// opcode - operation code.
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// f - 7-bit register file address.
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// d - 1-bit direction specifier
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// k - 8/11 bit literals
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// b - 3 bits bit num specifier
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//
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//===----------------------------------------------------------------------===//
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// Generic PIC16 Format
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// PIC16 Instructions are 14-bit wide.
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// FIXME: Add Cooper Specific Formats if any.
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class PIC16Inst<dag outs, dag ins, string asmstr, list<dag> pattern>
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: Instruction {
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field bits<14> Inst;
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let Namespace = "PIC16";
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dag OutOperandList = outs;
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dag InOperandList = ins;
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let AsmString = asmstr;
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let Pattern = pattern;
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}
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//===----------------------------------------------------------------------===//
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// Byte Oriented instruction class in PIC16 : <|opcode|d|f|>
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// opcode = 6 bits.
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// d = direction = 1 bit.
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// f = file register address = 7 bits.
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//===----------------------------------------------------------------------===//
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class ByteFormat<bits<6> opcode, dag outs, dag ins, string asmstr,
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list<dag> pattern>
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:PIC16Inst<outs, ins, asmstr, pattern> {
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bits<1> d;
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bits<7> f;
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let Inst{13-8} = opcode;
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let Inst{7} = d;
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let Inst{6-0} = f;
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}
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//===----------------------------------------------------------------------===//
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// Bit Oriented instruction class in PIC16 : <|opcode|b|f|>
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// opcode = 4 bits.
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// b = bit specifier = 3 bits.
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// f = file register address = 7 bits.
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//===----------------------------------------------------------------------===//
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class BitFormat<bits<4> opcode, dag outs, dag ins, string asmstr,
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list<dag> pattern>
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: PIC16Inst<outs, ins, asmstr, pattern> {
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bits<3> b;
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bits<7> f;
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let Inst{13-10} = opcode;
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let Inst{9-7} = b;
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let Inst{6-0} = f;
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}
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//===----------------------------------------------------------------------===//
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// Literal Format instruction class in PIC16 : <|opcode|k|>
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// opcode = 6 bits
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// k = literal = 8 bits
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//===----------------------------------------------------------------------===//
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class LiteralFormat<bits<6> opcode, dag outs, dag ins, string asmstr,
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list<dag> pattern>
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: PIC16Inst<outs, ins, asmstr, pattern> {
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bits<8> k;
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let Inst{13-8} = opcode;
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let Inst{7-0} = k;
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}
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//===----------------------------------------------------------------------===//
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// Control Format instruction class in PIC16 : <|opcode|k|>
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// opcode = 3 bits.
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// k = jump address = 11 bits.
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//===----------------------------------------------------------------------===//
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class ControlFormat<bits<3> opcode, dag outs, dag ins, string asmstr,
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list<dag> pattern>
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: PIC16Inst<outs, ins, asmstr, pattern> {
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bits<11> k;
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let Inst{13-11} = opcode;
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let Inst{10-0} = k;
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}
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//===----------------------------------------------------------------------===//
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// Pseudo instruction class in PIC16
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//===----------------------------------------------------------------------===//
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class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
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: PIC16Inst<outs, ins, asmstr, pattern> {
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let Inst{13-6} = 0;
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}
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