riscv/rocket-chip
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Move branch resolution to M stage

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This commit is contained in:
Andrew Waterman 2014-04-07 15:58:49 -07:00
parent db59fc65ab
commit f235fa0db6
6 changed files with 374 additions and 325 deletions
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139
rocket/src/main/scala/btb.scala
View File

@ -5,11 +5,53 @@ import Util._
import Node._ import Node._
import uncore.constants.AddressConstants._ import uncore.constants.AddressConstants._
case class BTBConfig(entries: Int, nras: Int = 0, inOrder: Boolean = true) { case class BTBConfig(entries: Int, nras: Int = 0) {
val matchBits = PGIDX_BITS val matchBits = PGIDX_BITS
val pages0 = 1 + log2Up(entries) // is this sensible? what about matchBits? val pages0 = 1 max log2Up(entries) // is this sensible?
val pages = (pages0+1)/2*2 // control logic assumes 2 divides pages val pages = (pages0+1)/2*2 // control logic assumes 2 divides pages
val opaqueBits = log2Up(entries) val opaqueBits = log2Up(entries)
val nbht = 1 << log2Up(entries * 2)
}
class RAS(implicit conf: BTBConfig) {
def push(addr: UInt): Unit = {
when (count < conf.nras) { count := count + 1 }
val nextPos = Mux(Bool(isPow2(conf.nras)) || pos > 0, pos+1, UInt(0))
stack(nextPos) := addr
pos := nextPos
}
def peek: UInt = stack(pos)
def pop: Unit = when (!isEmpty) {
count := count - 1
pos := Mux(Bool(isPow2(conf.nras)) || pos > 0, pos-1, UInt(conf.nras-1))
}
def clear: Unit = count := UInt(0)
def isEmpty: Bool = count === UInt(0)
private val count = Reg(init=UInt(0,log2Up(conf.nras+1)))
private val pos = Reg(init=UInt(0,log2Up(conf.nras)))
private val stack = Vec.fill(conf.nras){Reg(UInt())}
}
class BHTResp(implicit conf: BTBConfig) extends Bundle {
val index = UInt(width = log2Up(conf.nbht).max(1))
val value = UInt(width = 2)
}
class BHT(implicit conf: BTBConfig) {
def get(addr: UInt): BHTResp = {
val res = new BHTResp
res.index := addr(log2Up(conf.nbht)+1,2) ^ history
res.value := table(res.index)
res
}
def update(d: BHTResp, taken: Bool): Unit = {
table(d.index) := Cat(taken, (d.value(1) & d.value(0)) | ((d.value(1) | d.value(0)) & taken))
history := Cat(taken, history(log2Up(conf.nbht)-1,1))
}
private val table = Mem(UInt(width = 2), conf.nbht)
val history = Reg(UInt(width = log2Up(conf.nbht)))
} }
class BTBUpdate(implicit conf: BTBConfig) extends Bundle { class BTBUpdate(implicit conf: BTBConfig) extends Bundle {
@ -18,6 +60,7 @@ class BTBUpdate(implicit conf: BTBConfig) extends Bundle {
val target = UInt(width = VADDR_BITS) val target = UInt(width = VADDR_BITS)
val returnAddr = UInt(width = VADDR_BITS) val returnAddr = UInt(width = VADDR_BITS)
val taken = Bool() val taken = Bool()
val isJump = Bool()
val isCall = Bool() val isCall = Bool()
val isReturn = Bool() val isReturn = Bool()
val incorrectTarget = Bool() val incorrectTarget = Bool()
@ -28,31 +71,12 @@ class BTBUpdate(implicit conf: BTBConfig) extends Bundle {
class BTBResp(implicit conf: BTBConfig) extends Bundle { class BTBResp(implicit conf: BTBConfig) extends Bundle {
val taken = Bool() val taken = Bool()
val target = UInt(width = VADDR_BITS) val target = UInt(width = VADDR_BITS)
val opaque = UInt(width = conf.opaqueBits) val entry = UInt(width = conf.opaqueBits)
val bht = new BHTResp
override def clone = new BTBResp().asInstanceOf[this.type] override def clone = new BTBResp().asInstanceOf[this.type]
} }
class RAS(implicit conf: BTBConfig) {
def push(addr: UInt): Unit = {
when (count < conf.nras-1) { count := count + 1 }
stack(pos+1) := addr
pos := pos+1
}
def pop: UInt = {
count := count - 1
pos := pos - 1
stack(pos)
}
def clear: Unit = count := UInt(0)
def isEmpty: Bool = count === UInt(0)
require(isPow2(conf.nras))
private val count = Reg(init=UInt(0,log2Up(conf.nras+1)))
private val pos = Reg(init=UInt(0,log2Up(conf.nras)))
private val stack = Vec.fill(conf.nras){Reg(UInt())}
}
// fully-associative branch target buffer // fully-associative branch target buffer
class BTB(implicit conf: BTBConfig) extends Module { class BTB(implicit conf: BTBConfig) extends Module {
val io = new Bundle { val io = new Bundle {
@ -73,6 +97,7 @@ class BTB(implicit conf: BTBConfig) extends Module {
val tgtPagesOH = tgtPages.map(UIntToOH(_)(conf.pages-1,0)) val tgtPagesOH = tgtPages.map(UIntToOH(_)(conf.pages-1,0))
val useRAS = Vec.fill(conf.entries){Reg(Bool())} val useRAS = Vec.fill(conf.entries){Reg(Bool())}
val isJump = Vec.fill(conf.entries){Reg(Bool())}
private def page(addr: UInt) = addr >> conf.matchBits private def page(addr: UInt) = addr >> conf.matchBits
private def pageMatch(addr: UInt) = { private def pageMatch(addr: UInt) = {
@ -94,48 +119,48 @@ class BTB(implicit conf: BTBConfig) extends Module {
val updatePageHit = pageMatch(update.bits.pc) val updatePageHit = pageMatch(update.bits.pc)
val updateHits = tagMatch(update.bits.pc, updatePageHit) val updateHits = tagMatch(update.bits.pc, updatePageHit)
val taken = update.bits.incorrectTarget || update.bits.taken
val predicted_taken = update.bits.prediction.valid && update.bits.prediction.bits.taken
val correction = update.bits.incorrectTarget || update.bits.taken != predicted_taken
private var lfsr = LFSR16(update.valid) private var lfsr = LFSR16(update.valid)
def rand(width: Int) = { def rand(width: Int) = {
lfsr = lfsr(lfsr.getWidth-1,1) lfsr = lfsr(lfsr.getWidth-1,1)
Random.oneHot(width, lfsr) Random.oneHot(width, lfsr)
} }
def randOrInvalid(valid: UInt) =
Mux(!valid.andR, PriorityEncoderOH(~valid), rand(valid.getWidth))
val idxRepl = randOrInvalid(idxValid.toBits) val updateHit = update.bits.prediction.valid
val idxWen = val updateValid = update.bits.incorrectTarget || updateHit && Bool(conf.nbht > 0)
if (conf.inOrder) Mux(update.bits.prediction.valid, UIntToOH(update.bits.prediction.bits.opaque), idxRepl) val updateTarget = updateValid && update.bits.incorrectTarget
else updateHits | Mux(updateHits.orR, UInt(0), idxRepl)
val useUpdatePageHit = updatePageHit.orR val useUpdatePageHit = updatePageHit.orR
val doIdxPageRepl = !useUpdatePageHit && update.valid val doIdxPageRepl = updateTarget && !useUpdatePageHit
val idxPageRepl = rand(conf.pages) val idxPageRepl = UInt()
val idxPageUpdate = Mux(useUpdatePageHit, updatePageHit, idxPageRepl) val idxPageUpdateOH = Mux(useUpdatePageHit, updatePageHit, idxPageRepl)
val idxPageUpdate = OHToUInt(idxPageUpdateOH)
val idxPageReplEn = Mux(doIdxPageRepl, idxPageRepl, UInt(0)) val idxPageReplEn = Mux(doIdxPageRepl, idxPageRepl, UInt(0))
val samePage = page(update.bits.pc) === page(update_target) val samePage = page(update.bits.pc) === page(update_target)
val usePageHit = (pageHit & ~idxPageReplEn).orR val usePageHit = (pageHit & ~idxPageReplEn).orR
val doTgtPageRepl = !usePageHit && !samePage && update.valid val doTgtPageRepl = updateTarget && !samePage && !usePageHit
val tgtPageRepl = Mux(samePage, idxPageUpdate, idxPageUpdate(conf.pages-2,0) << 1 | idxPageUpdate(conf.pages-1)) val tgtPageRepl = Mux(samePage, idxPageUpdateOH, idxPageUpdateOH(conf.pages-2,0) << 1 | idxPageUpdateOH(conf.pages-1))
val tgtPageUpdate = Mux(usePageHit, pageHit, tgtPageRepl) val tgtPageUpdate = OHToUInt(Mux(usePageHit, pageHit, tgtPageRepl))
val tgtPageReplEn = Mux(doTgtPageRepl, tgtPageRepl, UInt(0)) val tgtPageReplEn = Mux(doTgtPageRepl, tgtPageRepl, UInt(0))
val pageReplEn = idxPageReplEn | tgtPageReplEn val pageReplEn = idxPageReplEn | tgtPageReplEn
idxPageRepl := UIntToOH(Counter(update.valid && (doIdxPageRepl || doTgtPageRepl), conf.pages)._1)
when (update.valid && !(updateValid && !updateTarget)) {
val nextRepl = Counter(!updateHit && updateValid, conf.entries)._1
val waddr = Mux(updateHit, update.bits.prediction.bits.entry, nextRepl)
when (update.valid) {
for (i <- 0 until conf.entries) { for (i <- 0 until conf.entries) {
when (idxWen(i)) { when (waddr === i) {
idxValid(i) := taken idxValid(i) := updateValid
when (correction) { when (updateTarget) {
if (i == 0) assert(io.req === update.bits.target, "BTB request != I$ target")
idxs(i) := update.bits.pc idxs(i) := update.bits.pc
idxPages(i) := OHToUInt(idxPageUpdate) idxPages(i) := idxPageUpdate
tgts(i) := update_target tgts(i) := update_target
tgtPages(i) := OHToUInt(tgtPageUpdate) tgtPages(i) := tgtPageUpdate
useRAS(i) := update.bits.isReturn useRAS(i) := update.bits.isReturn
isJump(i) := update.bits.isJump
} }
}.elsewhen ((pageReplEn & (idxPagesOH(i) | tgtPagesOH(i))).orR) { }.elsewhen ((pageReplEn & (idxPagesOH(i) | tgtPagesOH(i))).orR) {
idxValid(i) := false idxValid(i) := false
@ -143,7 +168,7 @@ class BTB(implicit conf: BTBConfig) extends Module {
} }
require(conf.pages % 2 == 0) require(conf.pages % 2 == 0)
val idxWritesEven = (idxPageUpdate & Fill(conf.pages/2, UInt(1,2))).orR val idxWritesEven = (idxPageUpdateOH & Fill(conf.pages/2, UInt(1,2))).orR
def writeBank(i: Int, mod: Int, en: Bool, data: UInt) = { def writeBank(i: Int, mod: Int, en: Bool, data: UInt) = {
for (i <- i until conf.pages by mod) { for (i <- i until conf.pages by mod) {
@ -167,15 +192,27 @@ class BTB(implicit conf: BTBConfig) extends Module {
io.resp.valid := hits.toBits.orR io.resp.valid := hits.toBits.orR
io.resp.bits.taken := io.resp.valid io.resp.bits.taken := io.resp.valid
io.resp.bits.target := Cat(Mux1H(Mux1H(hits, tgtPagesOH), pages), Mux1H(hits, tgts)) io.resp.bits.target := Cat(Mux1H(Mux1H(hits, tgtPagesOH), pages), Mux1H(hits, tgts))
io.resp.bits.opaque := OHToUInt(hits) io.resp.bits.entry := OHToUInt(hits)
if (conf.nbht > 0) {
val bht = new BHT
val res = bht.get(io.req)
when (update.valid && updateHit && !update.bits.isJump) { bht.update(update.bits.prediction.bits.bht, update.bits.taken) }
when (!res.value(0) && !Mux1H(hits, isJump)) { io.resp.bits.taken := false }
io.resp.bits.bht := res
}
if (conf.nras > 0) { if (conf.nras > 0) {
val ras = new RAS val ras = new RAS
when (!ras.isEmpty && Mux1H(hits, useRAS)) { when (!ras.isEmpty && Mux1H(hits, useRAS)) {
io.resp.bits.target := ras.pop io.resp.bits.target := ras.peek
} }
when (io.update.valid && io.update.bits.isCall) { when (io.update.valid) {
ras.push(io.update.bits.returnAddr) when (io.update.bits.isCall) {
ras.push(io.update.bits.returnAddr)
}.elsewhen (io.update.bits.isReturn && io.update.bits.prediction.valid) {
ras.pop
}
} }
when (io.invalidate) { ras.clear } when (io.invalidate) { ras.clear }
} }

1
rocket/src/main/scala/consts.scala
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@ -17,6 +17,7 @@ trait ScalarOpConstants {
val BR_GEU = Bits(7, 3) val BR_GEU = Bits(7, 3)
val PC_EX = UInt(0, 2) val PC_EX = UInt(0, 2)
val PC_MEM = UInt(1, 2)
val PC_WB = UInt(2, 2) val PC_WB = UInt(2, 2)
val PC_PCR = UInt(3, 2) val PC_PCR = UInt(3, 2)

495
rocket/src/main/scala/ctrl.scala
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@ -27,9 +27,10 @@ class CtrlDpathIO(implicit conf: RocketConfiguration) extends Bundle
val wb_load = Bool(OUTPUT) val wb_load = Bool(OUTPUT)
val ex_fp_val= Bool(OUTPUT) val ex_fp_val= Bool(OUTPUT)
val mem_fp_val= Bool(OUTPUT) val mem_fp_val= Bool(OUTPUT)
val ex_wen = Bool(OUTPUT) val ex_wen = Bool(OUTPUT)
val ex_jalr = Bool(OUTPUT) val ex_valid = Bool(OUTPUT)
val ex_predicted_taken = Bool(OUTPUT) val mem_jalr = Bool(OUTPUT)
val mem_branch = Bool(OUTPUT)
val mem_wen = Bool(OUTPUT) val mem_wen = Bool(OUTPUT)
val wb_wen = Bool(OUTPUT) val wb_wen = Bool(OUTPUT)
val ex_mem_type = Bits(OUTPUT, 3) val ex_mem_type = Bits(OUTPUT, 3)
@ -47,13 +48,13 @@ class CtrlDpathIO(implicit conf: RocketConfiguration) extends Bundle
// inputs from datapath // inputs from datapath
val inst = Bits(INPUT, 32) val inst = Bits(INPUT, 32)
val jalr_eq = Bool(INPUT) val jalr_eq = Bool(INPUT)
val ex_br_type = Bits(OUTPUT, SZ_BR) val mem_br_taken = Bool(INPUT)
val ex_br_taken = Bool(INPUT) val mem_misprediction = Bool(INPUT)
val div_mul_rdy = Bool(INPUT) val div_mul_rdy = Bool(INPUT)
val ll_wen = Bool(INPUT) val ll_wen = Bool(INPUT)
val ll_waddr = UInt(INPUT, 5) val ll_waddr = UInt(INPUT, 5)
val ex_waddr = UInt(INPUT, 5) val ex_waddr = UInt(INPUT, 5)
val ex_rs = Vec.fill(2)(UInt(INPUT, 5)) val mem_rs1_ra = Bool(INPUT)
val mem_waddr = UInt(INPUT, 5) val mem_waddr = UInt(INPUT, 5)
val wb_waddr = UInt(INPUT, 5) val wb_waddr = UInt(INPUT, 5)
val status = new Status().asInput val status = new Status().asInput
@ -67,15 +68,15 @@ abstract trait DecodeConstants
val xpr64 = Y val xpr64 = Y
val decode_default = val decode_default =
// fence.i // jal fence.i
// jalr mul_val | sret // | jalr mul_val | sret
// fp_val | renx2 | div_val | | syscall // fp_val| | renx2 | div_val | | syscall
// | rocc_val | | renx1 s_alu1 mem_val | | wen | | | // | rocc| | | renx1 s_alu1 mem_val | | wen | | |
// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next // val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
// | | | | brtype | | | | | | | | | | | | | | | | | | | fence // | | | | | | | | | | | | | | | | | | | | | | | | fence
// | | | | | | | | | | | | | | | | | | | | | | | | | amo // | | | | | | | | | | | | | | | | | | | | | | | | | amo
// | | | | | | | | | | | | | | | | | | | | | | | | | | // | | | | | | | | | | | | | | | | | | | | | | | | | |
List(N, X,X,X,BR_X, X,X,X,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, X,X,X,CSR.X,N,X,X,X,X,X) List(N, X,X,X,X,X,X,X,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, X,X,X,CSR.X,N,X,X,X,X,X)
val table: Array[(UInt, List[UInt])] val table: Array[(UInt, List[UInt])]
} }
@ -83,225 +84,225 @@ abstract trait DecodeConstants
object XDecode extends DecodeConstants object XDecode extends DecodeConstants
{ {
val table = Array( val table = Array(
// fence.i // jal fence.i
// jalr mul_val | sret // | jalr mul_val | sret
// fp_val | renx2 | div_val | | syscall // fp_val| | renx2 | div_val | | syscall
// | rocc_val | | renx1 s_alu1 mem_val | | wen | | | // | rocc| | | renx1 s_alu1 mem_val | | wen | | |
// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next // val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
// | | | | brtype | | | | | | | | | | | | | | | | | | | fence // | | | | | | | | | | | | | | | | | | | | | | | | fence
// | | | | | | | | | | | | | | | | | | | | | | | | | amo // | | | | | | | | | | | | | | | | | | | | | | | | | amo
// | | | | | | | | | | | | | | | | | | | | | | | | | | // | | | | | | | | | | | | | | | | | | | | | | | | | |
BNE-> List(Y, N,N,Y,BR_NE, N,Y,Y,A2_X, A1_X, IMM_SB,DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), BNE-> List(Y, N,N,Y,N,N,Y,Y,A2_RS2, A1_RS1, IMM_SB,DW_X, FN_SNE, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
BEQ-> List(Y, N,N,Y,BR_EQ, N,Y,Y,A2_X, A1_X, IMM_SB,DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), BEQ-> List(Y, N,N,Y,N,N,Y,Y,A2_RS2, A1_RS1, IMM_SB,DW_X, FN_SEQ, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
BLT-> List(Y, N,N,Y,BR_LT, N,Y,Y,A2_X, A1_X, IMM_SB,DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), BLT-> List(Y, N,N,Y,N,N,Y,Y,A2_RS2, A1_RS1, IMM_SB,DW_X, FN_SLT, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
BLTU-> List(Y, N,N,Y,BR_LTU,N,Y,Y,A2_X, A1_X, IMM_SB,DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), BLTU-> List(Y, N,N,Y,N,N,Y,Y,A2_RS2, A1_RS1, IMM_SB,DW_X, FN_SLTU, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
BGE-> List(Y, N,N,Y,BR_GE, N,Y,Y,A2_X, A1_X, IMM_SB,DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), BGE-> List(Y, N,N,Y,N,N,Y,Y,A2_RS2, A1_RS1, IMM_SB,DW_X, FN_SGE, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
BGEU-> List(Y, N,N,Y,BR_GEU,N,Y,Y,A2_X, A1_X, IMM_SB,DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), BGEU-> List(Y, N,N,Y,N,N,Y,Y,A2_RS2, A1_RS1, IMM_SB,DW_X, FN_SGEU, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
JAL-> List(Y, N,N,Y,BR_J, N,N,N,A2_FOUR,A1_PC, IMM_UJ,DW_X, FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), JAL-> List(Y, N,N,N,Y,N,N,N,A2_FOUR,A1_PC, IMM_UJ,DW_X, FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
JALR-> List(Y, N,N,N,BR_X, Y,N,Y,A2_FOUR,A1_PC, IMM_I, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), JALR-> List(Y, N,N,N,N,Y,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
AUIPC-> List(Y, N,N,N,BR_X, N,N,N,A2_IMM, A1_PC, IMM_U, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), AUIPC-> List(Y, N,N,N,N,N,N,N,A2_IMM, A1_PC, IMM_U, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
LB-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_B, N,N,Y,CSR.N,N,N,N,N,N,N), LB-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_B, N,N,Y,CSR.N,N,N,N,N,N,N),
LH-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_H, N,N,Y,CSR.N,N,N,N,N,N,N), LH-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_H, N,N,Y,CSR.N,N,N,N,N,N,N),
LW-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_W, N,N,Y,CSR.N,N,N,N,N,N,N), LW-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_W, N,N,Y,CSR.N,N,N,N,N,N,N),
LD-> List(xpr64,N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_D, N,N,Y,CSR.N,N,N,N,N,N,N), LD-> List(xpr64,N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_D, N,N,Y,CSR.N,N,N,N,N,N,N),
LBU-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_BU,N,N,Y,CSR.N,N,N,N,N,N,N), LBU-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_BU,N,N,Y,CSR.N,N,N,N,N,N,N),
LHU-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_HU,N,N,Y,CSR.N,N,N,N,N,N,N), LHU-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_HU,N,N,Y,CSR.N,N,N,N,N,N,N),
LWU-> List(xpr64,N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_WU,N,N,Y,CSR.N,N,N,N,N,N,N), LWU-> List(xpr64,N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_WU,N,N,Y,CSR.N,N,N,N,N,N,N),
SB-> List(Y, N,N,N,BR_X, N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_B, N,N,N,CSR.N,N,N,N,N,N,N), SB-> List(Y, N,N,N,N,N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_B, N,N,N,CSR.N,N,N,N,N,N,N),
SH-> List(Y, N,N,N,BR_X, N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_H, N,N,N,CSR.N,N,N,N,N,N,N), SH-> List(Y, N,N,N,N,N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_H, N,N,N,CSR.N,N,N,N,N,N,N),
SW-> List(Y, N,N,N,BR_X, N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_W, N,N,N,CSR.N,N,N,N,N,N,N), SW-> List(Y, N,N,N,N,N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_W, N,N,N,CSR.N,N,N,N,N,N,N),
SD-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_D, N,N,N,CSR.N,N,N,N,N,N,N), SD-> List(xpr64,N,N,N,N,N,Y,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_D, N,N,N,CSR.N,N,N,N,N,N,N),
AMOADD_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_ADD, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOADD_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_ADD, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOXOR_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_XOR, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOXOR_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_XOR, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOSWAP_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_SWAP,MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOSWAP_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_SWAP,MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOAND_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_AND, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOAND_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_AND, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOOR_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_OR, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOOR_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_OR, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMIN_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MIN, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMIN_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MIN, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMINU_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MINU,MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMINU_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MINU,MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMAX_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAX, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMAX_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAX, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMAXU_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAXU,MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMAXU_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAXU,MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOADD_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_ADD, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOADD_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_ADD, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOSWAP_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_SWAP,MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOSWAP_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_SWAP,MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOXOR_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_XOR, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOXOR_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_XOR, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOAND_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_AND, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOAND_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_AND, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOOR_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_OR, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOOR_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_OR, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMIN_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MIN, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMIN_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MIN, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMINU_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MINU,MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMINU_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MINU,MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMAX_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAX, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMAX_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAX, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
AMOMAXU_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAXU,MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), AMOMAXU_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XA_MAXU,MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
LR_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XLR, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), LR_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XLR, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
LR_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XLR, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), LR_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XLR, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
SC_W-> List(Y, N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XSC, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y), SC_W-> List(Y, N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XSC, MT_W, N,N,Y,CSR.N,N,N,N,N,N,Y),
SC_D-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XSC, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y), SC_D-> List(xpr64,N,N,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, Y,M_XSC, MT_D, N,N,Y,CSR.N,N,N,N,N,N,Y),
LUI-> List(Y, N,N,N,BR_X, N,N,N,A2_IMM, A1_ZERO,IMM_U, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), LUI-> List(Y, N,N,N,N,N,N,N,A2_IMM, A1_ZERO,IMM_U, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
ADDI-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), ADDI-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLTI -> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SLT, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLTI -> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SLT, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLTIU-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SLTU, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLTIU-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SLTU, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
ANDI-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_AND, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), ANDI-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_AND, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
ORI-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_OR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), ORI-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_OR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
XORI-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_XOR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), XORI-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_XOR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLLI-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLLI-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRLI-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRLI-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRAI-> List(Y, N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRAI-> List(Y, N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
ADD-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), ADD-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SUB-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SUB, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SUB-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SUB, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLT-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SLT, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLT-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SLT, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLTU-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SLTU, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLTU-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SLTU, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
AND-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_AND, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), AND-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_AND, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
OR-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_OR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), OR-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_OR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
XOR-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_XOR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), XOR-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_XOR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLL-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLL-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRL-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRL-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRA-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRA-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
ADDIW-> List(xpr64,N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), ADDIW-> List(xpr64,N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLLIW-> List(xpr64,N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLLIW-> List(xpr64,N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRLIW-> List(xpr64,N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRLIW-> List(xpr64,N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRAIW-> List(xpr64,N,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRAIW-> List(xpr64,N,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_32,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
ADDW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), ADDW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SUBW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SUB, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SUBW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SUB, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SLLW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SLLW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SL, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRLW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRLW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SR, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
SRAW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), SRAW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32,FN_SRA, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
MUL-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MUL, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N), MUL-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MUL, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N),
MULH-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MULH, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N), MULH-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MULH, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N),
MULHU-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MULHU, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N), MULHU-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MULHU, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N),
MULHSU-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MULHSU,N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N), MULHSU-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_MULHSU,N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N),
MULW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_MUL, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N), MULW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_MUL, N,M_X, MT_X, Y,N,Y,CSR.N,N,N,N,N,N,N),
DIV-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_DIV, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), DIV-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_DIV, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
DIVU-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_DIVU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), DIVU-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_DIVU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
REM-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_REM, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), REM-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_REM, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
REMU-> List(Y, N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_REMU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), REMU-> List(Y, N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_XPR,FN_REMU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
DIVW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_DIV, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), DIVW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_DIV, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
DIVUW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_DIVU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), DIVUW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_DIVU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
REMW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_REM, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), REMW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_REM, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
REMUW-> List(xpr64,N,N,N,BR_X, N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_REMU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N), REMUW-> List(xpr64,N,N,N,N,N,Y,Y,A2_RS2, A1_RS1, IMM_X, DW_32, FN_REMU, N,M_X, MT_X, N,Y,Y,CSR.N,N,N,N,N,N,N),
SCALL-> List(Y, N,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,Y,N,N,N), SCALL-> List(Y, N,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,Y,N,N,N),
SRET-> List(Y, N,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,Y,N,N,N,N), SRET-> List(Y, N,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,Y,N,N,N,N),
FENCE-> List(Y, N,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,Y,N), FENCE-> List(Y, N,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,Y,N),
FENCE_I-> List(Y, N,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,Y,N,N,Y,N,N), FENCE_I-> List(Y, N,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,Y,N,N,Y,N,N),
CSRRW-> List(Y, N,N,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.W,N,N,N,N,N,N), CSRRW-> List(Y, N,N,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.W,N,N,N,N,N,N),
CSRRS-> List(Y, N,N,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.S,N,N,N,N,N,N), CSRRS-> List(Y, N,N,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.S,N,N,N,N,N,N),
CSRRC-> List(Y, N,N,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.C,N,N,N,N,N,N), CSRRC-> List(Y, N,N,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.C,N,N,N,N,N,N),
CSRRWI-> List(Y, N,N,N,BR_X, N,N,N,A2_IMM, A1_ZERO,IMM_Z, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.W,N,N,N,N,N,N), CSRRWI-> List(Y, N,N,N,N,N,N,N,A2_IMM, A1_ZERO,IMM_Z, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.W,N,N,N,N,N,N),
CSRRSI-> List(Y, N,N,N,BR_X, N,N,N,A2_IMM, A1_ZERO,IMM_Z, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.S,N,N,N,N,N,N), CSRRSI-> List(Y, N,N,N,N,N,N,N,A2_IMM, A1_ZERO,IMM_Z, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.S,N,N,N,N,N,N),
CSRRCI-> List(Y, N,N,N,BR_X, N,N,N,A2_IMM, A1_ZERO,IMM_Z, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.C,N,N,N,N,N,N)) CSRRCI-> List(Y, N,N,N,N,N,N,N,A2_IMM, A1_ZERO,IMM_Z, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.C,N,N,N,N,N,N))
} }
object FDecode extends DecodeConstants object FDecode extends DecodeConstants
{ {
val table = Array( val table = Array(
// fence.i // jal fence.i
// jalr mul_val | sret // | jalr mul_val | sret
// fp_val | renx2 | div_val | | syscall // fp_val| | renx2 | div_val | | syscall
// | rocc_val | | renx1 s_alu1 mem_val | | wen | | | // | rocc| | | renx1 s_alu1 mem_val | | wen | | |
// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next // val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
// | | | | brtype | | | | | | | | | | | | | | | | | | | fence // | | | | | | | | | | | | | | | | | | | | | | | | fence
// | | | | | | | | | | | | | | | | | | | | | | | | | amo // | | | | | | | | | | | | | | | | | | | | | | | | | amo
// | | | | | | | | | | | | | | | | | | | | | | | | | | // | | | | | | | | | | | | | | | | | | | | | | | | | |
FCVT_S_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_S_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_D_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_D_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSGNJ_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSGNJ_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSGNJ_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSGNJ_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSGNJX_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSGNJX_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSGNJX_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSGNJX_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSGNJN_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSGNJN_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSGNJN_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSGNJN_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMIN_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMIN_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMIN_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMIN_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMAX_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMAX_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMAX_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMAX_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FADD_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FADD_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FADD_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FADD_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSUB_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSUB_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FSUB_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FSUB_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMUL_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMUL_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMUL_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMUL_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMADD_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMADD_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMADD_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMADD_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMSUB_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMSUB_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMSUB_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMSUB_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FNMADD_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FNMADD_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FNMADD_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FNMADD_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FNMSUB_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FNMSUB_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FNMSUB_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FNMSUB_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCLASS_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCLASS_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCLASS_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCLASS_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FMV_X_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FMV_X_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FMV_X_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FMV_X_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_W_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_W_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_W_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_W_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_WU_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_WU_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_WU_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_WU_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_L_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_L_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_L_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_L_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_LU_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_LU_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FCVT_LU_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FCVT_LU_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FEQ_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FEQ_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FEQ_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FEQ_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FLT_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FLT_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FLT_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FLT_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FLE_S-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FLE_S-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FLE_D-> List(Y, Y,N,N,BR_X, N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), FLE_D-> List(Y, Y,N,N,N,N,N,N,A2_X, A1_X, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
FMV_S_X-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMV_S_X-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FMV_D_X-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FMV_D_X-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_S_W-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_S_W-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_D_W-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_D_W-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_S_WU-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_S_WU-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_D_WU-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_D_WU-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_S_L-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_S_L-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_D_L-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_D_L-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_S_LU-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_S_LU-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FCVT_D_LU-> List(Y, Y,N,N,BR_X, N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), FCVT_D_LU-> List(Y, Y,N,N,N,N,N,Y,A2_X, A1_RS1, IMM_X, DW_X, FN_X, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
FLW-> List(Y, Y,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_W, N,N,N,CSR.N,N,N,N,N,N,N), FLW-> List(Y, Y,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_W, N,N,N,CSR.N,N,N,N,N,N,N),
FLD-> List(Y, Y,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_D, N,N,N,CSR.N,N,N,N,N,N,N), FLD-> List(Y, Y,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_I, DW_XPR,FN_ADD, Y,M_XRD, MT_D, N,N,N,CSR.N,N,N,N,N,N,N),
FSW-> List(Y, Y,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_W, N,N,N,CSR.N,N,N,N,N,N,N), FSW-> List(Y, Y,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_W, N,N,N,CSR.N,N,N,N,N,N,N),
FSD-> List(Y, Y,N,N,BR_X, N,N,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_D, N,N,N,CSR.N,N,N,N,N,N,N)) FSD-> List(Y, Y,N,N,N,N,N,Y,A2_IMM, A1_RS1, IMM_S, DW_XPR,FN_ADD, Y,M_XWR, MT_D, N,N,N,CSR.N,N,N,N,N,N,N))
} }
object RoCCDecode extends DecodeConstants object RoCCDecode extends DecodeConstants
{ {
val table = Array( val table = Array(
// fence.i // jal fence.i
// jalr mul_val | sret // | jalr mul_val | sret
// fp_val | renx2 | div_val | | syscall // fp_val| | renx2 | div_val | | syscall
// | rocc_val | | renx1 s_alu1 mem_val | | wen | | | // | rocc| | | renx1 s_alu1 mem_val | | wen | | |
// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next // val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
// | | | | brtype | | | | | | | | | | | | | | | | | | | fence // | | | | | | | | | | | | | | | | | | | | | | | | fence
// | | | | | | | | | | | | | | | | | | | | | | | | | amo // | | | | | | | | | | | | | | | | | | | | | | | | | amo
// | | | | | | | | | | | | | | | | | | | | | | | | | | // | | | | | | | | | | | | | | | | | | | | | | | | | |
CUSTOM0-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM0-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM0_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM0_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM0_RS1_RS2-> List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM0_RS1_RS2-> List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM0_RD-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM0_RD-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM0_RD_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM0_RD_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM0_RD_RS1_RS2->List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM0_RD_RS1_RS2->List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM1-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM1-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM1_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM1_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM1_RS1_RS2-> List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM1_RS1_RS2-> List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM1_RD-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM1_RD-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM1_RD_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM1_RD_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM1_RD_RS1_RS2->List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM1_RD_RS1_RS2->List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM2-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM2-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM2_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM2_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM2_RS1_RS2-> List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM2_RS1_RS2-> List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM2_RD-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM2_RD-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM2_RD_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM2_RD_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM2_RD_RS1_RS2->List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM2_RD_RS1_RS2->List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM3-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM3-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM3_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM3_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM3_RS1_RS2-> List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N), CUSTOM3_RS1_RS2-> List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,N,CSR.N,N,N,N,N,N,N),
CUSTOM3_RD-> List(Y, N,Y,N,BR_X, N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM3_RD-> List(Y, N,Y,N,N,N,N,N,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM3_RD_RS1-> List(Y, N,Y,N,BR_X, N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N), CUSTOM3_RD_RS1-> List(Y, N,Y,N,N,N,N,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N),
CUSTOM3_RD_RS1_RS2->List(Y, N,Y,N,BR_X, N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N)) CUSTOM3_RD_RS1_RS2->List(Y, N,Y,N,N,N,Y,Y,A2_ZERO,A1_RS1, IMM_X, DW_XPR,FN_ADD, N,M_X, MT_X, N,N,Y,CSR.N,N,N,N,N,N,N))
} }
class Control(implicit conf: RocketConfiguration) extends Module class Control(implicit conf: RocketConfiguration) extends Module
@ -326,7 +327,7 @@ class Control(implicit conf: RocketConfiguration) extends Module
val cs = DecodeLogic(io.dpath.inst, XDecode.decode_default, decode_table) val cs = DecodeLogic(io.dpath.inst, XDecode.decode_default, decode_table)
val (id_int_val: Bool) :: (id_fp_val: Bool) :: (id_rocc_val: Bool) :: (id_branch: Bool) :: id_br_type :: (id_jalr: Bool) :: (id_renx2: Bool) :: (id_renx1: Bool) :: cs0 = cs val (id_int_val: Bool) :: (id_fp_val: Bool) :: (id_rocc_val: Bool) :: (id_branch: Bool) :: (id_jal: Bool) :: (id_jalr: Bool) :: (id_renx2: Bool) :: (id_renx1: Bool) :: cs0 = cs
val id_sel_alu2 :: id_sel_alu1 :: id_sel_imm :: (id_fn_dw: Bool) :: id_fn_alu :: cs1 = cs0 val id_sel_alu2 :: id_sel_alu1 :: id_sel_imm :: (id_fn_dw: Bool) :: id_fn_alu :: cs1 = cs0
val (id_mem_val: Bool) :: id_mem_cmd :: id_mem_type :: (id_mul_val: Bool) :: (id_div_val: Bool) :: (id_wen: Bool) :: cs2 = cs1 val (id_mem_val: Bool) :: id_mem_cmd :: id_mem_type :: (id_mul_val: Bool) :: (id_div_val: Bool) :: (id_wen: Bool) :: cs2 = cs1
val id_csr :: (id_fence_i: Bool) :: (id_sret: Bool) :: (id_syscall: Bool) :: (id_replay_next: Bool) :: (id_fence: Bool) :: (id_amo: Bool) :: Nil = cs2 val id_csr :: (id_fence_i: Bool) :: (id_sret: Bool) :: (id_syscall: Bool) :: (id_replay_next: Bool) :: (id_fence: Bool) :: (id_amo: Bool) :: Nil = cs2
@ -334,11 +335,10 @@ class Control(implicit conf: RocketConfiguration) extends Module
val ex_reg_xcpt_interrupt = Reg(Bool()) val ex_reg_xcpt_interrupt = Reg(Bool())
val ex_reg_valid = Reg(Bool()) val ex_reg_valid = Reg(Bool())
val ex_reg_branch = Reg(Bool()) val ex_reg_branch = Reg(Bool())
val ex_reg_jal = Reg(Bool())
val ex_reg_jalr = Reg(Bool()) val ex_reg_jalr = Reg(Bool())
val ex_reg_predicted_taken = Reg(Bool())
val ex_reg_btb_hit = Reg(Bool()) val ex_reg_btb_hit = Reg(Bool())
val ex_reg_btb_resp = Reg(io.imem.btb_resp.bits.clone) val ex_reg_btb_resp = Reg(io.imem.btb_resp.bits.clone)
val ex_reg_br_type = Reg(UInt())
val ex_reg_sret = Reg(Bool()) val ex_reg_sret = Reg(Bool())
val ex_reg_wen = Reg(Bool()) val ex_reg_wen = Reg(Bool())
val ex_reg_fp_wen = Reg(Bool()) val ex_reg_fp_wen = Reg(Bool())
@ -357,6 +357,11 @@ class Control(implicit conf: RocketConfiguration) extends Module
val mem_reg_xcpt_interrupt = Reg(Bool()) val mem_reg_xcpt_interrupt = Reg(Bool())
val mem_reg_valid = Reg(Bool()) val mem_reg_valid = Reg(Bool())
val mem_reg_branch = Reg(Bool())
val mem_reg_jal = Reg(Bool())
val mem_reg_jalr = Reg(Bool())
val mem_reg_btb_hit = Reg(Bool())
val mem_reg_btb_resp = Reg(io.imem.btb_resp.bits.clone)
val mem_reg_sret = Reg(Bool()) val mem_reg_sret = Reg(Bool())
val mem_reg_wen = Reg(Bool()) val mem_reg_wen = Reg(Bool())
val mem_reg_fp_wen = Reg(Bool()) val mem_reg_fp_wen = Reg(Bool())
@ -386,8 +391,10 @@ class Control(implicit conf: RocketConfiguration) extends Module
val wb_reg_fp_val = Reg(Bool()) val wb_reg_fp_val = Reg(Bool())
val wb_reg_div_mul_val = Reg(Bool()) val wb_reg_div_mul_val = Reg(Bool())
val take_pc = Bool()
val take_pc_wb = Bool() val take_pc_wb = Bool()
val take_pc_mem = io.dpath.mem_misprediction && (mem_reg_branch || mem_reg_jalr || mem_reg_jal)
val take_pc_mem_wb = take_pc_wb || take_pc_mem
val take_pc = take_pc_mem_wb
val ctrl_killd = Bool() val ctrl_killd = Bool()
val ctrl_killx = Bool() val ctrl_killx = Bool()
val ctrl_killm = Bool() val ctrl_killm = Bool()
@ -457,8 +464,8 @@ class Control(implicit conf: RocketConfiguration) extends Module
when (ctrl_killd) { when (ctrl_killd) {
ex_reg_branch := false ex_reg_branch := false
ex_reg_jal := false
ex_reg_jalr := false ex_reg_jalr := false
ex_reg_predicted_taken := false
ex_reg_btb_hit := false ex_reg_btb_hit := false
ex_reg_div_mul_val := Bool(false) ex_reg_div_mul_val := Bool(false)
ex_reg_mem_val := Bool(false) ex_reg_mem_val := Bool(false)
@ -476,9 +483,8 @@ class Control(implicit conf: RocketConfiguration) extends Module
} }
.otherwise { .otherwise {
ex_reg_branch := id_branch ex_reg_branch := id_branch
ex_reg_jal := id_jal
ex_reg_jalr := id_jalr ex_reg_jalr := id_jalr
ex_reg_predicted_taken := io.imem.btb_resp.valid && io.imem.btb_resp.bits.taken
when (id_branch) { ex_reg_br_type := id_br_type }
ex_reg_btb_hit := io.imem.btb_resp.valid ex_reg_btb_hit := io.imem.btb_resp.valid
when (io.imem.btb_resp.valid) { ex_reg_btb_resp := io.imem.btb_resp.bits } when (io.imem.btb_resp.valid) { ex_reg_btb_resp := io.imem.btb_resp.bits }
ex_reg_div_mul_val := id_mul_val || id_div_val ex_reg_div_mul_val := id_mul_val || id_div_val
@ -504,8 +510,7 @@ class Control(implicit conf: RocketConfiguration) extends Module
ex_reg_div_mul_val && !io.dpath.div_mul_rdy ex_reg_div_mul_val && !io.dpath.div_mul_rdy
val replay_ex_other = wb_dcache_miss && ex_reg_load_use || mem_reg_replay_next val replay_ex_other = wb_dcache_miss && ex_reg_load_use || mem_reg_replay_next
val replay_ex = replay_ex_structural || replay_ex_other val replay_ex = replay_ex_structural || replay_ex_other
ctrl_killx := take_pc_wb || replay_ex ctrl_killx := take_pc_mem_wb || replay_ex
val take_pc_ex = ex_reg_jalr && !io.dpath.jalr_eq || io.dpath.ex_br_taken
// detect 2-cycle load-use delay for LB/LH/SC // detect 2-cycle load-use delay for LB/LH/SC
val ex_slow_bypass = ex_reg_mem_cmd === M_XSC || AVec(MT_B, MT_BU, MT_H, MT_HU).contains(ex_reg_mem_type) val ex_slow_bypass = ex_reg_mem_cmd === M_XSC || AVec(MT_B, MT_BU, MT_H, MT_HU).contains(ex_reg_mem_type)
@ -513,13 +518,16 @@ class Control(implicit conf: RocketConfiguration) extends Module
(ex_reg_xcpt_interrupt || ex_reg_xcpt, ex_reg_cause), (ex_reg_xcpt_interrupt || ex_reg_xcpt, ex_reg_cause),
(ex_reg_fp_val && io.fpu.illegal_rm, UInt(Causes.illegal_instruction)))) (ex_reg_fp_val && io.fpu.illegal_rm, UInt(Causes.illegal_instruction))))
mem_reg_replay := replay_ex && !take_pc_wb mem_reg_replay := !take_pc_mem_wb && replay_ex
mem_reg_xcpt_interrupt := ex_reg_xcpt_interrupt && !take_pc_wb && !mem_reg_replay_next mem_reg_xcpt_interrupt := !take_pc_mem_wb && ex_reg_xcpt_interrupt && !mem_reg_replay_next
when (ex_xcpt) { mem_reg_cause := ex_cause } when (ex_xcpt) { mem_reg_cause := ex_cause }
mem_reg_div_mul_val := ex_reg_div_mul_val && io.dpath.div_mul_rdy mem_reg_div_mul_val := ex_reg_div_mul_val && io.dpath.div_mul_rdy
when (ctrl_killx) { when (ctrl_killx) {
mem_reg_valid := Bool(false) mem_reg_valid := false
mem_reg_branch := false
mem_reg_jal := false
mem_reg_jalr := false
mem_reg_csr := CSR.N mem_reg_csr := CSR.N
mem_reg_wen := Bool(false) mem_reg_wen := Bool(false)
mem_reg_fp_wen := Bool(false) mem_reg_fp_wen := Bool(false)
@ -532,7 +540,12 @@ class Control(implicit conf: RocketConfiguration) extends Module
mem_reg_xcpt := Bool(false) mem_reg_xcpt := Bool(false)
} }
.otherwise { .otherwise {
mem_reg_valid := ex_reg_valid mem_reg_valid := ex_reg_valid
mem_reg_branch := ex_reg_branch
mem_reg_jal := ex_reg_jal
mem_reg_jalr := ex_reg_jalr
mem_reg_btb_hit := ex_reg_btb_hit
when (ex_reg_btb_hit) { mem_reg_btb_resp := ex_reg_btb_resp }
mem_reg_csr := ex_reg_csr mem_reg_csr := ex_reg_csr
mem_reg_wen := ex_reg_wen mem_reg_wen := ex_reg_wen
mem_reg_fp_wen := ex_reg_fp_wen mem_reg_fp_wen := ex_reg_fp_wen
@ -635,21 +648,21 @@ class Control(implicit conf: RocketConfiguration) extends Module
// control transfer from ex/wb // control transfer from ex/wb
take_pc_wb := replay_wb || wb_reg_xcpt || wb_reg_sret take_pc_wb := replay_wb || wb_reg_xcpt || wb_reg_sret
take_pc := take_pc_ex || take_pc_wb
io.dpath.sel_pc := io.dpath.sel_pc :=
Mux(wb_reg_xcpt, PC_PCR, // exception Mux(wb_reg_xcpt, PC_PCR, // exception
Mux(wb_reg_sret, PC_PCR, // sret instruction Mux(wb_reg_sret, PC_PCR, // sret instruction
Mux(replay_wb, PC_WB, // replay Mux(replay_wb, PC_WB, // replay
PC_EX)))// branch/jal[r] PC_MEM)))
io.imem.btb_update.valid := ex_reg_btb_hit || !take_pc_wb && (ex_reg_branch || ex_reg_jalr) && !ex_reg_xcpt io.imem.btb_update.valid := (mem_reg_branch || mem_reg_jal || mem_reg_jalr) && !take_pc_wb && !mem_reg_xcpt
io.imem.btb_update.bits.prediction.valid := ex_reg_btb_hit io.imem.btb_update.bits.prediction.valid := mem_reg_btb_hit
io.imem.btb_update.bits.prediction.bits := ex_reg_btb_resp io.imem.btb_update.bits.prediction.bits := mem_reg_btb_resp
io.imem.btb_update.bits.taken := ex_reg_jalr || io.dpath.ex_br_taken ^ io.dpath.ex_predicted_taken io.imem.btb_update.bits.taken := mem_reg_jal || mem_reg_branch && io.dpath.mem_br_taken
io.imem.btb_update.bits.incorrectTarget := ex_reg_jalr && !io.dpath.jalr_eq io.imem.btb_update.bits.incorrectTarget := take_pc_mem
io.imem.btb_update.bits.isCall := ex_reg_wen && io.dpath.ex_waddr(0) io.imem.btb_update.bits.isJump := mem_reg_jal || mem_reg_jalr
io.imem.btb_update.bits.isReturn := ex_reg_jalr && io.dpath.ex_rs(0) === 1 io.imem.btb_update.bits.isCall := mem_reg_wen && io.dpath.mem_waddr(0)
io.imem.btb_update.bits.isReturn := mem_reg_jalr && io.dpath.mem_rs1_ra
io.imem.req.valid := take_pc io.imem.req.valid := take_pc
val bypassDst = Array(id_raddr1, id_raddr2) val bypassDst = Array(id_raddr1, id_raddr2)
@ -677,7 +690,7 @@ class Control(implicit conf: RocketConfiguration) extends Module
io.fpu.dec.ren2 && id_raddr2 === io.dpath.ex_waddr || io.fpu.dec.ren2 && id_raddr2 === io.dpath.ex_waddr ||
io.fpu.dec.ren3 && id_raddr3 === io.dpath.ex_waddr || io.fpu.dec.ren3 && id_raddr3 === io.dpath.ex_waddr ||
io.fpu.dec.wen && id_waddr === io.dpath.ex_waddr) io.fpu.dec.wen && id_waddr === io.dpath.ex_waddr)
val id_ex_hazard = data_hazard_ex && (ex_reg_csr != CSR.N || ex_reg_mem_val || ex_reg_div_mul_val || ex_reg_fp_val || ex_reg_rocc_val) || val id_ex_hazard = data_hazard_ex && (ex_reg_csr != CSR.N || ex_reg_jalr || ex_reg_mem_val || ex_reg_div_mul_val || ex_reg_fp_val || ex_reg_rocc_val) ||
fp_data_hazard_ex && (ex_reg_mem_val || ex_reg_fp_val) fp_data_hazard_ex && (ex_reg_mem_val || ex_reg_fp_val)
// stall for RAW/WAW hazards on PCRs, LB/LH, and mul/div in memory stage. // stall for RAW/WAW hazards on PCRs, LB/LH, and mul/div in memory stage.
@ -735,9 +748,10 @@ class Control(implicit conf: RocketConfiguration) extends Module
io.dpath.div_mul_kill := mem_reg_div_mul_val && killm_common io.dpath.div_mul_kill := mem_reg_div_mul_val && killm_common
io.dpath.ex_fp_val:= ex_reg_fp_val io.dpath.ex_fp_val:= ex_reg_fp_val
io.dpath.mem_fp_val:= mem_reg_fp_val io.dpath.mem_fp_val:= mem_reg_fp_val
io.dpath.ex_jalr := ex_reg_jalr io.dpath.mem_jalr := mem_reg_jalr
io.dpath.ex_predicted_taken := ex_reg_branch && ex_reg_btb_hit && ex_reg_btb_resp.taken io.dpath.mem_branch := mem_reg_branch
io.dpath.ex_wen := ex_reg_wen io.dpath.ex_wen := ex_reg_wen
io.dpath.ex_valid := ex_reg_valid
io.dpath.mem_wen := mem_reg_wen io.dpath.mem_wen := mem_reg_wen
io.dpath.ll_ready := !wb_reg_wen io.dpath.ll_ready := !wb_reg_wen
io.dpath.wb_wen := wb_reg_wen && !replay_wb io.dpath.wb_wen := wb_reg_wen && !replay_wb
@ -745,7 +759,6 @@ class Control(implicit conf: RocketConfiguration) extends Module
io.dpath.csr := wb_reg_csr io.dpath.csr := wb_reg_csr
io.dpath.sret := wb_reg_sret io.dpath.sret := wb_reg_sret
io.dpath.ex_mem_type := ex_reg_mem_type io.dpath.ex_mem_type := ex_reg_mem_type
io.dpath.ex_br_type := Mux(ex_reg_branch, ex_reg_br_type, BR_N) ^ io.dpath.ex_predicted_taken
io.dpath.ex_rs2_val := ex_reg_mem_val && isWrite(ex_reg_mem_cmd) || ex_reg_rocc_val io.dpath.ex_rs2_val := ex_reg_mem_val && isWrite(ex_reg_mem_cmd) || ex_reg_rocc_val
io.dpath.ex_rocc_val := ex_reg_rocc_val io.dpath.ex_rocc_val := ex_reg_rocc_val
io.dpath.mem_rocc_val := mem_reg_rocc_val io.dpath.mem_rocc_val := mem_reg_rocc_val

36
rocket/src/main/scala/dpath.scala
View File

@ -118,9 +118,6 @@ class Datapath(implicit conf: RocketConfiguration) extends Module
} }
} }
io.ctrl.ex_rs(0) := ex_reg_inst(19,15)
io.ctrl.ex_rs(1) := ex_reg_inst(24,20)
val bypass = Vec.fill(NBYP)(Bits()) val bypass = Vec.fill(NBYP)(Bits())
bypass(BYP_0) := Bits(0) bypass(BYP_0) := Bits(0)
bypass(BYP_EX) := mem_reg_wdata bypass(BYP_EX) := mem_reg_wdata
@ -169,11 +166,6 @@ class Datapath(implicit conf: RocketConfiguration) extends Module
Mux(a === SInt(-1) || a === SInt(-2), e === SInt(-1), Mux(a === SInt(-1) || a === SInt(-2), e === SInt(-1),
e(0))) e(0)))
} }
val ex_br_base = Mux(io.ctrl.ex_jalr, ex_rs(0), ex_reg_pc)
val ex_br_offset = Mux(io.ctrl.ex_predicted_taken, SInt(4), ex_imm(20,0).toSInt)
val ex_br64 = (ex_br_base + ex_br_offset) & SInt(-2)
val ex_br_msb = Mux(io.ctrl.ex_jalr, vaSign(ex_rs(0), ex_br64), vaSign(ex_reg_pc, ex_br64))
val ex_br_addr = Cat(ex_br_msb, ex_br64(VADDR_BITS-1,0))
// D$ request interface (registered inside D$ module) // D$ request interface (registered inside D$ module)
// other signals (req_val, req_rdy) connect to control module // other signals (req_val, req_rdy) connect to control module
@ -196,17 +188,6 @@ class Datapath(implicit conf: RocketConfiguration) extends Module
io.ptw.invalidate := pcr.io.fatc io.ptw.invalidate := pcr.io.fatc
io.ptw.sret := io.ctrl.sret io.ptw.sret := io.ctrl.sret
io.ptw.status := pcr.io.status io.ptw.status := pcr.io.status
// branch resolution logic
io.ctrl.jalr_eq := ex_rs(0) === id_pc.toSInt && ex_reg_inst(31,20) === UInt(0)
io.ctrl.ex_br_taken :=
Mux(io.ctrl.ex_br_type === BR_EQ, ex_rs(0) === ex_rs(1),
Mux(io.ctrl.ex_br_type === BR_NE, ex_rs(0) != ex_rs(1),
Mux(io.ctrl.ex_br_type === BR_LT, ex_rs(0).toSInt < ex_rs(1).toSInt,
Mux(io.ctrl.ex_br_type === BR_GE, ex_rs(0).toSInt >= ex_rs(1).toSInt,
Mux(io.ctrl.ex_br_type === BR_LTU, ex_rs(0) < ex_rs(1),
Mux(io.ctrl.ex_br_type === BR_GEU, ex_rs(0) >= ex_rs(1),
io.ctrl.ex_br_type === BR_J))))))
// memory stage // memory stage
mem_reg_kill := ex_reg_kill mem_reg_kill := ex_reg_kill
@ -255,11 +236,20 @@ class Datapath(implicit conf: RocketConfiguration) extends Module
io.fpu.dmem_resp_type := io.dmem.resp.bits.typ io.fpu.dmem_resp_type := io.dmem.resp.bits.typ
io.fpu.dmem_resp_tag := dmem_resp_waddr io.fpu.dmem_resp_tag := dmem_resp_waddr
io.ctrl.mem_br_taken := mem_reg_wdata(0)
val mem_br_target = mem_reg_pc +
Mux(io.ctrl.mem_branch && io.ctrl.mem_br_taken, imm(IMM_SB, mem_reg_inst),
Mux(!io.ctrl.mem_jalr && !io.ctrl.mem_branch, imm(IMM_UJ, mem_reg_inst), SInt(4)))
val mem_npc = Mux(io.ctrl.mem_jalr, Cat(vaSign(mem_reg_wdata, mem_reg_wdata), mem_reg_wdata(VADDR_BITS-1,0)), mem_br_target)
io.ctrl.mem_misprediction := mem_npc != Mux(io.ctrl.ex_valid, ex_reg_pc, id_pc)
io.ctrl.mem_rs1_ra := mem_reg_inst(19,15) === 1
val mem_int_wdata = Mux(io.ctrl.mem_jalr, mem_br_target, mem_reg_wdata)
// writeback stage // writeback stage
when (!mem_reg_kill) { when (!mem_reg_kill) {
wb_reg_pc := mem_reg_pc wb_reg_pc := mem_reg_pc
wb_reg_inst := mem_reg_inst wb_reg_inst := mem_reg_inst
wb_reg_wdata := Mux(io.ctrl.mem_fp_val && io.ctrl.mem_wen, io.fpu.toint_data, mem_reg_wdata) wb_reg_wdata := Mux(io.ctrl.mem_fp_val && io.ctrl.mem_wen, io.fpu.toint_data, mem_int_wdata)
} }
when (io.ctrl.mem_rocc_val) { when (io.ctrl.mem_rocc_val) {
wb_reg_rs2 := mem_reg_rs2 wb_reg_rs2 := mem_reg_rs2
@ -290,12 +280,12 @@ class Datapath(implicit conf: RocketConfiguration) extends Module
// hook up I$ // hook up I$
io.imem.req.bits.pc := io.imem.req.bits.pc :=
Mux(io.ctrl.sel_pc === PC_EX, ex_br_addr, Mux(io.ctrl.sel_pc === PC_MEM, mem_npc,
Mux(io.ctrl.sel_pc === PC_PCR, pcr.io.evec, Mux(io.ctrl.sel_pc === PC_PCR, pcr.io.evec,
wb_reg_pc)).toUInt // PC_WB wb_reg_pc)).toUInt // PC_WB
io.imem.btb_update.bits.pc := ex_reg_pc io.imem.btb_update.bits.pc := mem_reg_pc
io.imem.btb_update.bits.target := io.imem.req.bits.pc io.imem.btb_update.bits.target := io.imem.req.bits.pc
io.imem.btb_update.bits.returnAddr := io.dmem.req.bits.addr & SInt(-4) io.imem.btb_update.bits.returnAddr := mem_int_wdata
// for hazard/bypass opportunity detection // for hazard/bypass opportunity detection
io.ctrl.ex_waddr := ex_reg_inst(11,7) io.ctrl.ex_waddr := ex_reg_inst(11,7)

26
rocket/src/main/scala/dpath_alu.scala
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@ -14,10 +14,14 @@ object ALU
val FN_OR = Bits(6) val FN_OR = Bits(6)
val FN_AND = Bits(7) val FN_AND = Bits(7)
val FN_SR = Bits(5) val FN_SR = Bits(5)
val FN_SUB = Bits(8) val FN_SEQ = Bits(8)
val FN_SLT = Bits(10) val FN_SNE = Bits(9)
val FN_SLTU = Bits(11) val FN_SUB = Bits(10)
val FN_SRA = Bits(13) val FN_SRA = Bits(11)
val FN_SLT = Bits(12)
val FN_SGE = Bits(13)
val FN_SLTU = Bits(14)
val FN_SGEU = Bits(15)
val FN_DIV = FN_XOR val FN_DIV = FN_XOR
val FN_DIVU = FN_SR val FN_DIVU = FN_SR
@ -31,7 +35,9 @@ object ALU
def isMulFN(fn: Bits, cmp: Bits) = fn(1,0) === cmp(1,0) def isMulFN(fn: Bits, cmp: Bits) = fn(1,0) === cmp(1,0)
def isSub(cmd: Bits) = cmd(3) def isSub(cmd: Bits) = cmd(3)
def isSLTU(cmd: Bits) = cmd(0) def cmpUnsigned(cmd: Bits) = cmd(1)
def cmpInverted(cmd: Bits) = cmd(0)
def cmpEq(cmd: Bits) = !cmd(2)
} }
import ALU._ import ALU._
@ -52,8 +58,10 @@ class ALU(implicit conf: RocketConfiguration) extends Module
val sum = io.in1 + Mux(isSub(io.fn), -io.in2, io.in2) val sum = io.in1 + Mux(isSub(io.fn), -io.in2, io.in2)
// SLT, SLTU // SLT, SLTU
val less = Mux(io.in1(63) === io.in2(63), sum(63), val cmp = cmpInverted(io.fn) ^
Mux(isSLTU(io.fn), io.in2(63), io.in1(63))) Mux(cmpEq(io.fn), sum === UInt(0),
Mux(io.in1(63) === io.in2(63), sum(63),
Mux(cmpUnsigned(io.fn), io.in2(63), io.in1(63))))
// SLL, SRL, SRA // SLL, SRL, SRA
val shamt = Cat(io.in2(5) & (io.dw === DW_64), io.in2(4,0)).toUInt val shamt = Cat(io.in2(5) & (io.dw === DW_64), io.in2(4,0)).toUInt
@ -66,12 +74,12 @@ class ALU(implicit conf: RocketConfiguration) extends Module
val out64 = val out64 =
Mux(io.fn === FN_ADD || io.fn === FN_SUB, sum, Mux(io.fn === FN_ADD || io.fn === FN_SUB, sum,
Mux(io.fn === FN_SLT || io.fn === FN_SLTU, less,
Mux(io.fn === FN_SR || io.fn === FN_SRA, shout_r, Mux(io.fn === FN_SR || io.fn === FN_SRA, shout_r,
Mux(io.fn === FN_SL, shout_l, Mux(io.fn === FN_SL, shout_l,
Mux(io.fn === FN_AND, io.in1 & io.in2, Mux(io.fn === FN_AND, io.in1 & io.in2,
Mux(io.fn === FN_OR, io.in1 | io.in2, Mux(io.fn === FN_OR, io.in1 | io.in2,
/*FN_XOR*/ io.in1 ^ io.in2)))))) Mux(io.fn === FN_XOR, io.in1 ^ io.in2,
/* all comparisons */ cmp))))))
val out_hi = Mux(io.dw === DW_64, out64(63,32), Fill(32, out64(31))) val out_hi = Mux(io.dw === DW_64, out64(63,32), Fill(32, out64(31)))
io.out := Cat(out_hi, out64(31,0)).toUInt io.out := Cat(out_hi, out64(31,0)).toUInt

2
rocket/src/main/scala/icache.scala
View File

@ -70,7 +70,7 @@ class Frontend(implicit c: ICacheConfig, tl: TileLinkConfiguration) extends Modu
val pcp4_0 = s1_pc + UInt(c.ibytes) val pcp4_0 = s1_pc + UInt(c.ibytes)
val pcp4 = Cat(s1_pc(VADDR_BITS-1) & pcp4_0(VADDR_BITS-1), pcp4_0(VADDR_BITS-1,0)) val pcp4 = Cat(s1_pc(VADDR_BITS-1) & pcp4_0(VADDR_BITS-1), pcp4_0(VADDR_BITS-1,0))
val icmiss = s2_valid && !icache.io.resp.valid val icmiss = s2_valid && !icache.io.resp.valid
val predicted_npc = btbTarget /* zero if btb miss */ | Mux(btb.io.resp.bits.taken, UInt(0), pcp4) val predicted_npc = Mux(btb.io.resp.bits.taken, btbTarget, pcp4)
val npc = Mux(icmiss, s2_pc, predicted_npc).toUInt val npc = Mux(icmiss, s2_pc, predicted_npc).toUInt
val s0_same_block = !icmiss && !io.cpu.req.valid && !btb.io.resp.bits.taken && ((pcp4 & (c.databits/8)) === (s1_pc & (c.databits/8))) val s0_same_block = !icmiss && !io.cpu.req.valid && !btb.io.resp.bits.taken && ((pcp4 & (c.databits/8)) === (s1_pc & (c.databits/8)))