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//===- MSP430InstrFormats.td - MSP430 Instruction Formats-----*- tblgen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Describe MSP430 instructions format here
//
// Generic MSP430 Format
class MSP430Inst<dag outs, dag ins, string asmstr> : Instruction {
field bits<16> Inst;
let Namespace = "MSP430";
dag OutOperandList = outs;
dag InOperandList = ins;
let AsmString = asmstr;
}
// FIXME: Create different classes for different addressing modes.
// MSP430 Double Operand (Format I) Instructions
class IForm<bits<4> opcode, bit ad, bit bw, bits<2> as,
dag outs, dag ins, string asmstr, list<dag> pattern>
: MSP430Inst<outs, ins, asmstr> {
let Pattern = pattern;
let Inst{12-15} = opcode;
let Inst{7} = ad;
let Inst{6} = bw;
let Inst{4-5} = as;
}
// MSP430 Single Operand (Format II) Instructions
class IIForm<bits<9> opcode, bit bw, bits<2> ad,
dag outs, dag ins, string asmstr, list<dag> pattern>
: MSP430Inst<outs, ins, asmstr> {
let Pattern = pattern;
let Inst{7-15} = opcode;
let Inst{6} = bw;
let Inst{4-5} = ad;
}
// MSP430 Conditional Jumps Instructions
class CJForm<bits<3> opcode, bits<3> cond, bit s,
dag outs, dag ins, string asmstr, list<dag> pattern>
: MSP430Inst<outs, ins, asmstr> {
let Pattern = pattern;
let Inst{13-15} = opcode;
let Inst{10-12} = cond;
let Inst{9} = s;
}
// Pseudo instructions
class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
: MSP430Inst<outs, ins, asmstr> {
let Pattern = pattern;
let Inst{15-0} = 0;
}
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