1//===- MipsEVAInstrFormats.td - Mips Instruction Formats ---*- tablegen -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file describes Mips32r6 instruction formats. 11// 12//===----------------------------------------------------------------------===// 13 14class MipsEVAInst : MipsInst<(outs), (ins), "", [], NoItinerary, FrmOther>, 15 StdArch { 16 let DecoderNamespace = "Mips"; 17 let EncodingPredicates = [HasStdEnc]; 18} 19 20//===----------------------------------------------------------------------===// 21// 22// Field Values 23// 24//===----------------------------------------------------------------------===// 25 26// Memory Load/Store EVA 27def OPCODE6_LBE : OPCODE6<0b101100>; 28def OPCODE6_LBuE : OPCODE6<0b101000>; 29def OPCODE6_LHE : OPCODE6<0b101101>; 30def OPCODE6_LHuE : OPCODE6<0b101001>; 31def OPCODE6_LWE : OPCODE6<0b101111>; 32 33def OPCODE6_SBE : OPCODE6<0b011100>; 34def OPCODE6_SHE : OPCODE6<0b011101>; 35def OPCODE6_SWE : OPCODE6<0b011111>; 36 37// load/store left/right EVA 38def OPCODE6_LWLE : OPCODE6<0b011001>; 39def OPCODE6_LWRE : OPCODE6<0b011010>; 40def OPCODE6_SWLE : OPCODE6<0b100001>; 41def OPCODE6_SWRE : OPCODE6<0b100010>; 42 43// Load-linked EVA, Store-conditional EVA 44def OPCODE6_LLE : OPCODE6<0b101110>; 45def OPCODE6_SCE : OPCODE6<0b011110>; 46 47def OPCODE6_TLBINV : OPCODE6<0b000011>; 48def OPCODE6_TLBINVF : OPCODE6<0b000100>; 49 50def OPCODE6_CACHEE : OPCODE6<0b011011>; 51def OPCODE6_PREFE : OPCODE6<0b100011>; 52 53def OPGROUP_COP0_TLB : OPGROUP<0b010000>; 54 55//===----------------------------------------------------------------------===// 56// 57// Encoding Formats 58// 59//===----------------------------------------------------------------------===// 60 61class SPECIAL3_EVA_LOAD_STORE_FM<OPCODE6 Operation> : MipsEVAInst { 62 bits<21> addr; 63 bits<5> hint; 64 bits<5> base = addr{20-16}; 65 bits<9> offset = addr{8-0}; 66 67 bits<32> Inst; 68 69 let Inst{31-26} = OPGROUP_SPECIAL3.Value; 70 let Inst{25-21} = base; 71 let Inst{20-16} = hint; 72 let Inst{15-7} = offset; 73 let Inst{6} = 0; 74 let Inst{5-0} = Operation.Value; 75} 76 77class TLB_FM<OPCODE6 Operation> : MipsEVAInst { 78 bits<32> Inst; 79 80 let Inst{31-26} = OPGROUP_COP0_TLB.Value; 81 let Inst{25} = 1; // CO 82 let Inst{24-6} = 0; 83 let Inst{5-0} = Operation.Value; 84} 85