1import chisel3._ 2import chisel3.util._ 3 4package object xiangshan { 5 object SrcType { 6 def reg = "b00".U 7 def pc = "b01".U 8 def imm = "b01".U 9 def fp = "b10".U 10 11 def DC = imm // Don't Care 12 13 def isReg(srcType: UInt) = srcType===reg 14 def isPc(srcType: UInt) = srcType===pc 15 def isImm(srcType: UInt) = srcType===imm 16 def isFp(srcType: UInt) = srcType===fp 17 def isPcImm(srcType: UInt) = isPc(srcType) || isImm(srcType) 18 def isRegFp(srcType: UInt) = isReg(srcType) || isFp(srcType) 19 20 def apply() = UInt(2.W) 21 } 22 23 object SrcState { 24 def busy = "b00".U 25 def rdy = "b01".U 26 def specRdy = "b10".U // speculative ready, for future use 27 def apply() = UInt(2.W) 28 } 29 30 object FuType extends HasXSParameter { 31 def num = exuParameters.NRFuType 32 33 def jmp = "b0000".U 34 def i2f = "b0001".U 35 def csr = "b0010".U 36 def alu = "b0011".U 37 def mul = "b0100".U 38 def div = "b0101".U 39 def fence = "b0110".U 40 41 def fmac = "b1000".U 42 def fmisc = "b1001".U 43 def fDivSqrt = "b1010".U 44 45 def ldu = "b1100".U 46 def stu = "b1101".U 47 def mou = "b1110".U // for amo, lr, sc, fence 48 49 def apply() = UInt(log2Up(num).W) 50 51 def isIntExu(fuType: UInt) = !fuType(3) 52 def isFpExu(fuType: UInt) = fuType(3, 2) === "b10".U 53 def isMemExu(fuType: UInt) = fuType(3, 2) === "b11".U 54 def isLoadExu(fuType: UInt) = fuType === ldu || fuType===mou 55 def isStoreExu(fuType: UInt) = fuType === stu 56 57 val functionNameMap = Map( 58 jmp.litValue() -> "jmp", 59 i2f.litValue() -> "int to float", 60 csr.litValue() -> "csr", 61 alu.litValue() -> "alu", 62 mul.litValue() -> "mul", 63 div.litValue() -> "div", 64 fence.litValue() -> "fence", 65 fmac.litValue() -> "fmac", 66 fmisc.litValue() -> "fmisc", 67 fDivSqrt.litValue() -> "fdiv/fsqrt", 68 ldu.litValue() -> "load", 69 stu.litValue() -> "store" 70 ) 71 72 } 73 74 object FuOpType extends HasXSParameter { 75 def apply() = UInt(exuParameters.FuOpWidth.W) 76 } 77 78 object BTBtype { 79 def B = "b00".U // branch 80 def J = "b01".U // jump 81 def I = "b10".U // indirect 82 def R = "b11".U // return 83 84 def apply() = UInt(2.W) 85 } 86 87 object CommitType { 88 def NORMAL = "b00".U // int/fp 89 def BRANCH = "b01".U // branch 90 def LOAD = "b10".U // load 91 def STORE = "b11".U // store 92 93 def apply() = UInt(2.W) 94 def isLoadStore(commitType: UInt) = commitType(1) 95 def lsInstIsStore(commitType: UInt) = commitType(0) 96 def isBranch(commitType: UInt) = commitType(0) && !commitType(1) 97 } 98} 99