Move branch resolution to M stage
This commit is contained in:
Andrew Waterman
parent
db59fc65ab
commit
f235fa0db6
@ -5,11 +5,53 @@ import Util._
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import Node._
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import uncore.constants.AddressConstants._
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case class BTBConfig(entries: Int, nras: Int = 0, inOrder: Boolean = true) {
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case class BTBConfig(entries: Int, nras: Int = 0) {
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val matchBits = PGIDX_BITS
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val pages0 = 1 + log2Up(entries) // is this sensible? what about matchBits?
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val pages0 = 1 max log2Up(entries) // is this sensible?
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val pages = (pages0+1)/2*2 // control logic assumes 2 divides pages
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val opaqueBits = log2Up(entries)
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val nbht = 1 << log2Up(entries * 2)
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}
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class RAS(implicit conf: BTBConfig) {
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def push(addr: UInt): Unit = {
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when (count < conf.nras) { count := count + 1 }
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val nextPos = Mux(Bool(isPow2(conf.nras)) || pos > 0, pos+1, UInt(0))
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stack(nextPos) := addr
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pos := nextPos
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}
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def peek: UInt = stack(pos)
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def pop: Unit = when (!isEmpty) {
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count := count - 1
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pos := Mux(Bool(isPow2(conf.nras)) || pos > 0, pos-1, UInt(conf.nras-1))
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}
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def clear: Unit = count := UInt(0)
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def isEmpty: Bool = count === UInt(0)
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private val count = Reg(init=UInt(0,log2Up(conf.nras+1)))
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private val pos = Reg(init=UInt(0,log2Up(conf.nras)))
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private val stack = Vec.fill(conf.nras){Reg(UInt())}
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}
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class BHTResp(implicit conf: BTBConfig) extends Bundle {
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val index = UInt(width = log2Up(conf.nbht).max(1))
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val value = UInt(width = 2)
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}
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class BHT(implicit conf: BTBConfig) {
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def get(addr: UInt): BHTResp = {
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val res = new BHTResp
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res.index := addr(log2Up(conf.nbht)+1,2) ^ history
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res.value := table(res.index)
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res
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}
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def update(d: BHTResp, taken: Bool): Unit = {
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table(d.index) := Cat(taken, (d.value(1) & d.value(0)) | ((d.value(1) | d.value(0)) & taken))
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history := Cat(taken, history(log2Up(conf.nbht)-1,1))
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}
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private val table = Mem(UInt(width = 2), conf.nbht)
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val history = Reg(UInt(width = log2Up(conf.nbht)))
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}
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class BTBUpdate(implicit conf: BTBConfig) extends Bundle {
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@ -18,6 +60,7 @@ class BTBUpdate(implicit conf: BTBConfig) extends Bundle {
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val target = UInt(width = VADDR_BITS)
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val returnAddr = UInt(width = VADDR_BITS)
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val taken = Bool()
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val isJump = Bool()
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val isCall = Bool()
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val isReturn = Bool()
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val incorrectTarget = Bool()
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@ -28,31 +71,12 @@ class BTBUpdate(implicit conf: BTBConfig) extends Bundle {
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class BTBResp(implicit conf: BTBConfig) extends Bundle {
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val taken = Bool()
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val target = UInt(width = VADDR_BITS)
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val opaque = UInt(width = conf.opaqueBits)
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val entry = UInt(width = conf.opaqueBits)
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val bht = new BHTResp
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override def clone = new BTBResp().asInstanceOf[this.type]
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}
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class RAS(implicit conf: BTBConfig) {
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def push(addr: UInt): Unit = {
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when (count < conf.nras-1) { count := count + 1 }
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stack(pos+1) := addr
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pos := pos+1
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}
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def pop: UInt = {
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count := count - 1
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pos := pos - 1
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stack(pos)
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}
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def clear: Unit = count := UInt(0)
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def isEmpty: Bool = count === UInt(0)
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require(isPow2(conf.nras))
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private val count = Reg(init=UInt(0,log2Up(conf.nras+1)))
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private val pos = Reg(init=UInt(0,log2Up(conf.nras)))
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private val stack = Vec.fill(conf.nras){Reg(UInt())}
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}
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// fully-associative branch target buffer
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class BTB(implicit conf: BTBConfig) extends Module {
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val io = new Bundle {
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@ -73,6 +97,7 @@ class BTB(implicit conf: BTBConfig) extends Module {
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val tgtPagesOH = tgtPages.map(UIntToOH(_)(conf.pages-1,0))
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val useRAS = Vec.fill(conf.entries){Reg(Bool())}
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val isJump = Vec.fill(conf.entries){Reg(Bool())}
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private def page(addr: UInt) = addr >> conf.matchBits
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private def pageMatch(addr: UInt) = {
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@ -94,48 +119,48 @@ class BTB(implicit conf: BTBConfig) extends Module {
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val updatePageHit = pageMatch(update.bits.pc)
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val updateHits = tagMatch(update.bits.pc, updatePageHit)
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val taken = update.bits.incorrectTarget || update.bits.taken
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val predicted_taken = update.bits.prediction.valid && update.bits.prediction.bits.taken
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val correction = update.bits.incorrectTarget || update.bits.taken != predicted_taken
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private var lfsr = LFSR16(update.valid)
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def rand(width: Int) = {
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lfsr = lfsr(lfsr.getWidth-1,1)
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Random.oneHot(width, lfsr)
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}
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def randOrInvalid(valid: UInt) =
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Mux(!valid.andR, PriorityEncoderOH(~valid), rand(valid.getWidth))
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val idxRepl = randOrInvalid(idxValid.toBits)
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val idxWen =
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if (conf.inOrder) Mux(update.bits.prediction.valid, UIntToOH(update.bits.prediction.bits.opaque), idxRepl)
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else updateHits | Mux(updateHits.orR, UInt(0), idxRepl)
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val updateHit = update.bits.prediction.valid
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val updateValid = update.bits.incorrectTarget || updateHit && Bool(conf.nbht > 0)
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val updateTarget = updateValid && update.bits.incorrectTarget
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val useUpdatePageHit = updatePageHit.orR
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val doIdxPageRepl = !useUpdatePageHit && update.valid
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val idxPageRepl = rand(conf.pages)
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val idxPageUpdate = Mux(useUpdatePageHit, updatePageHit, idxPageRepl)
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val doIdxPageRepl = updateTarget && !useUpdatePageHit
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val idxPageRepl = UInt()
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val idxPageUpdateOH = Mux(useUpdatePageHit, updatePageHit, idxPageRepl)
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val idxPageUpdate = OHToUInt(idxPageUpdateOH)
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val idxPageReplEn = Mux(doIdxPageRepl, idxPageRepl, UInt(0))
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val samePage = page(update.bits.pc) === page(update_target)
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val usePageHit = (pageHit & ~idxPageReplEn).orR
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val doTgtPageRepl = !usePageHit && !samePage && update.valid
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val tgtPageRepl = Mux(samePage, idxPageUpdate, idxPageUpdate(conf.pages-2,0) << 1 | idxPageUpdate(conf.pages-1))
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val tgtPageUpdate = Mux(usePageHit, pageHit, tgtPageRepl)
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val doTgtPageRepl = updateTarget && !samePage && !usePageHit
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val tgtPageRepl = Mux(samePage, idxPageUpdateOH, idxPageUpdateOH(conf.pages-2,0) << 1 | idxPageUpdateOH(conf.pages-1))
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val tgtPageUpdate = OHToUInt(Mux(usePageHit, pageHit, tgtPageRepl))
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val tgtPageReplEn = Mux(doTgtPageRepl, tgtPageRepl, UInt(0))
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val pageReplEn = idxPageReplEn | tgtPageReplEn
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idxPageRepl := UIntToOH(Counter(update.valid && (doIdxPageRepl || doTgtPageRepl), conf.pages)._1)
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when (update.valid && !(updateValid && !updateTarget)) {
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val nextRepl = Counter(!updateHit && updateValid, conf.entries)._1
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val waddr = Mux(updateHit, update.bits.prediction.bits.entry, nextRepl)
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when (update.valid) {
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for (i <- 0 until conf.entries) {
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when (idxWen(i)) {
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idxValid(i) := taken
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when (correction) {
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when (waddr === i) {
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idxValid(i) := updateValid
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when (updateTarget) {
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if (i == 0) assert(io.req === update.bits.target, "BTB request != I$ target")
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idxs(i) := update.bits.pc
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idxPages(i) := OHToUInt(idxPageUpdate)
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idxPages(i) := idxPageUpdate
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tgts(i) := update_target
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tgtPages(i) := OHToUInt(tgtPageUpdate)
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tgtPages(i) := tgtPageUpdate
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useRAS(i) := update.bits.isReturn
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isJump(i) := update.bits.isJump
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}
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}.elsewhen ((pageReplEn & (idxPagesOH(i) | tgtPagesOH(i))).orR) {
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idxValid(i) := false
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@ -143,7 +168,7 @@ class BTB(implicit conf: BTBConfig) extends Module {
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}
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require(conf.pages % 2 == 0)
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val idxWritesEven = (idxPageUpdate & Fill(conf.pages/2, UInt(1,2))).orR
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val idxWritesEven = (idxPageUpdateOH & Fill(conf.pages/2, UInt(1,2))).orR
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def writeBank(i: Int, mod: Int, en: Bool, data: UInt) = {
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for (i <- i until conf.pages by mod) {
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@ -167,15 +192,27 @@ class BTB(implicit conf: BTBConfig) extends Module {
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io.resp.valid := hits.toBits.orR
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io.resp.bits.taken := io.resp.valid
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io.resp.bits.target := Cat(Mux1H(Mux1H(hits, tgtPagesOH), pages), Mux1H(hits, tgts))
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io.resp.bits.opaque := OHToUInt(hits)
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io.resp.bits.entry := OHToUInt(hits)
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if (conf.nbht > 0) {
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val bht = new BHT
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val res = bht.get(io.req)
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when (update.valid && updateHit && !update.bits.isJump) { bht.update(update.bits.prediction.bits.bht, update.bits.taken) }
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when (!res.value(0) && !Mux1H(hits, isJump)) { io.resp.bits.taken := false }
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io.resp.bits.bht := res
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}
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if (conf.nras > 0) {
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val ras = new RAS
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when (!ras.isEmpty && Mux1H(hits, useRAS)) {
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io.resp.bits.target := ras.pop
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io.resp.bits.target := ras.peek
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}
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when (io.update.valid && io.update.bits.isCall) {
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when (io.update.valid) {
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when (io.update.bits.isCall) {
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ras.push(io.update.bits.returnAddr)
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}.elsewhen (io.update.bits.isReturn && io.update.bits.prediction.valid) {
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ras.pop
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}
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}
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when (io.invalidate) { ras.clear }
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}
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@ -17,6 +17,7 @@ trait ScalarOpConstants {
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val BR_GEU = Bits(7, 3)
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val PC_EX = UInt(0, 2)
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val PC_MEM = UInt(1, 2)
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val PC_WB = UInt(2, 2)
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val PC_PCR = UInt(3, 2)
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@ -28,8 +28,9 @@ class CtrlDpathIO(implicit conf: RocketConfiguration) extends Bundle
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val ex_fp_val= Bool(OUTPUT)
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val mem_fp_val= Bool(OUTPUT)
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val ex_wen = Bool(OUTPUT)
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val ex_jalr = Bool(OUTPUT)
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val ex_predicted_taken = Bool(OUTPUT)
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val ex_valid = Bool(OUTPUT)
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val mem_jalr = Bool(OUTPUT)
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val mem_branch = Bool(OUTPUT)
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val mem_wen = Bool(OUTPUT)
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val wb_wen = Bool(OUTPUT)
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val ex_mem_type = Bits(OUTPUT, 3)
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@ -47,13 +48,13 @@ class CtrlDpathIO(implicit conf: RocketConfiguration) extends Bundle
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// inputs from datapath
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val inst = Bits(INPUT, 32)
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val jalr_eq = Bool(INPUT)
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val ex_br_type = Bits(OUTPUT, SZ_BR)
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val ex_br_taken = Bool(INPUT)
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val mem_br_taken = Bool(INPUT)
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val mem_misprediction = Bool(INPUT)
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val div_mul_rdy = Bool(INPUT)
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val ll_wen = Bool(INPUT)
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val ll_waddr = UInt(INPUT, 5)
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val ex_waddr = UInt(INPUT, 5)
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val ex_rs = Vec.fill(2)(UInt(INPUT, 5))
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val mem_rs1_ra = Bool(INPUT)
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val mem_waddr = UInt(INPUT, 5)
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val wb_waddr = UInt(INPUT, 5)
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val status = new Status().asInput
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@ -67,15 +68,15 @@ abstract trait DecodeConstants
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val xpr64 = Y
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val decode_default =
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// fence.i
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// jalr mul_val | sret
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// fp_val | renx2 | div_val | | syscall
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// | rocc_val | | renx1 s_alu1 mem_val | | wen | | |
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// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
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// | | | | brtype | | | | | | | | | | | | | | | | | | | fence
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// jal fence.i
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// | jalr mul_val | sret
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// fp_val| | renx2 | div_val | | syscall
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// | rocc| | | renx1 s_alu1 mem_val | | wen | | |
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// val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
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// | | | | | | | | | | | | | | | | | | | | | | | | fence
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// | | | | | | | | | | | | | | | | | | | | | | | | | amo
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// | | | | | | | | | | | | | | | | | | | | | | | | | |
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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)
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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)
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val table: Array[(UInt, List[UInt])]
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}
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@ -83,225 +84,225 @@ abstract trait DecodeConstants
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object XDecode extends DecodeConstants
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{
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val table = Array(
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// fence.i
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// jalr mul_val | sret
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// fp_val | renx2 | div_val | | syscall
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// | rocc_val | | renx1 s_alu1 mem_val | | wen | | |
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// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
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// | | | | brtype | | | | | | | | | | | | | | | | | | | fence
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// jal fence.i
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// | jalr mul_val | sret
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// fp_val| | renx2 | div_val | | syscall
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// | rocc| | | renx1 s_alu1 mem_val | | wen | | |
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// val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
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// | | | | | | | | | | | | | | | | | | | | | | | | fence
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// | | | | | | | | | | | | | | | | | | | | | | | | | amo
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// | | | | | | | | | | | | | | | | | | | | | | | | | |
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
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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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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,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,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,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,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,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,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,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,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,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,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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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_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),
|
||||
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_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),
|
||||
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,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,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,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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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,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,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,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,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,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,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,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,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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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,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,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,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,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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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,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,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,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,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,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,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,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),
|
||||
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),
|
||||
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_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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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))
|
||||
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,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,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,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,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,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,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,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,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,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
|
||||
{
|
||||
val table = Array(
|
||||
// fence.i
|
||||
// jalr mul_val | sret
|
||||
// fp_val | renx2 | div_val | | syscall
|
||||
// | rocc_val | | renx1 s_alu1 mem_val | | wen | | |
|
||||
// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
|
||||
// | | | | brtype | | | | | | | | | | | | | | | | | | | fence
|
||||
// jal fence.i
|
||||
// | jalr mul_val | sret
|
||||
// fp_val| | renx2 | div_val | | syscall
|
||||
// | rocc| | | renx1 s_alu1 mem_val | | wen | | |
|
||||
// val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
|
||||
// | | | | | | | | | | | | | | | | | | | | | | | | fence
|
||||
// | | | | | | | | | | | | | | | | | | | | | | | | | 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_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),
|
||||
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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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),
|
||||
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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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_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),
|
||||
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_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_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_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_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_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_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_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),
|
||||
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),
|
||||
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),
|
||||
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),
|
||||
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))
|
||||
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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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
|
||||
{
|
||||
val table = Array(
|
||||
// fence.i
|
||||
// jalr mul_val | sret
|
||||
// fp_val | renx2 | div_val | | syscall
|
||||
// | rocc_val | | renx1 s_alu1 mem_val | | wen | | |
|
||||
// val | | b | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
|
||||
// | | | | brtype | | | | | | | | | | | | | | | | | | | fence
|
||||
// jal fence.i
|
||||
// | jalr mul_val | sret
|
||||
// fp_val| | renx2 | div_val | | syscall
|
||||
// | rocc| | | renx1 s_alu1 mem_val | | wen | | |
|
||||
// val | | br| | | | s_alu2 | imm dw alu | mem_cmd mem_type| | | csr | | | replay_next
|
||||
// | | | | | | | | | | | | | | | | | | | | | | | | fence
|
||||
// | | | | | | | | | | | | | | | | | | | | | | | | | 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_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_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_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_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_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-> 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_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_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_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_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_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-> 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_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_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_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_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_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-> 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_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_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_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_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_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-> 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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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
|
||||
@ -326,7 +327,7 @@ class Control(implicit conf: RocketConfiguration) extends Module
|
||||
|
||||
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_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
|
||||
@ -334,11 +335,10 @@ class Control(implicit conf: RocketConfiguration) extends Module
|
||||
val ex_reg_xcpt_interrupt = Reg(Bool())
|
||||
val ex_reg_valid = Reg(Bool())
|
||||
val ex_reg_branch = Reg(Bool())
|
||||
val ex_reg_jal = 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_resp = Reg(io.imem.btb_resp.bits.clone)
|
||||
val ex_reg_br_type = Reg(UInt())
|
||||
val ex_reg_sret = Reg(Bool())
|
||||
val ex_reg_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_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_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_div_mul_val = Reg(Bool())
|
||||
|
||||
val take_pc = 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_killx = Bool()
|
||||
val ctrl_killm = Bool()
|
||||
@ -457,8 +464,8 @@ class Control(implicit conf: RocketConfiguration) extends Module
|
||||
|
||||
when (ctrl_killd) {
|
||||
ex_reg_branch := false
|
||||
ex_reg_jal := false
|
||||
ex_reg_jalr := false
|
||||
ex_reg_predicted_taken := false
|
||||
ex_reg_btb_hit := false
|
||||
ex_reg_div_mul_val := Bool(false)
|
||||
ex_reg_mem_val := Bool(false)
|
||||
@ -476,9 +483,8 @@ class Control(implicit conf: RocketConfiguration) extends Module
|
||||
}
|
||||
.otherwise {
|
||||
ex_reg_branch := id_branch
|
||||
ex_reg_jal := id_jal
|
||||
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
|
||||
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
|
||||
@ -504,8 +510,7 @@ class Control(implicit conf: RocketConfiguration) extends Module
|
||||
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 = replay_ex_structural || replay_ex_other
|
||||
ctrl_killx := take_pc_wb || replay_ex
|
||||
val take_pc_ex = ex_reg_jalr && !io.dpath.jalr_eq || io.dpath.ex_br_taken
|
||||
ctrl_killx := take_pc_mem_wb || replay_ex
|
||||
// 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)
|
||||
|
||||
@ -513,13 +518,16 @@ class Control(implicit conf: RocketConfiguration) extends Module
|
||||
(ex_reg_xcpt_interrupt || ex_reg_xcpt, ex_reg_cause),
|
||||
(ex_reg_fp_val && io.fpu.illegal_rm, UInt(Causes.illegal_instruction))))
|
||||
|
||||
mem_reg_replay := replay_ex && !take_pc_wb
|
||||
mem_reg_xcpt_interrupt := ex_reg_xcpt_interrupt && !take_pc_wb && !mem_reg_replay_next
|
||||
mem_reg_replay := !take_pc_mem_wb && replay_ex
|
||||
mem_reg_xcpt_interrupt := !take_pc_mem_wb && ex_reg_xcpt_interrupt && !mem_reg_replay_next
|
||||
when (ex_xcpt) { mem_reg_cause := ex_cause }
|
||||
mem_reg_div_mul_val := ex_reg_div_mul_val && io.dpath.div_mul_rdy
|
||||
|
||||
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_wen := Bool(false)
|
||||
mem_reg_fp_wen := Bool(false)
|
||||
@ -533,6 +541,11 @@ class Control(implicit conf: RocketConfiguration) extends Module
|
||||
}
|
||||
.otherwise {
|
||||
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_wen := ex_reg_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
|
||||
take_pc_wb := replay_wb || wb_reg_xcpt || wb_reg_sret
|
||||
take_pc := take_pc_ex || take_pc_wb
|
||||
|
||||
io.dpath.sel_pc :=
|
||||
Mux(wb_reg_xcpt, PC_PCR, // exception
|
||||
Mux(wb_reg_sret, PC_PCR, // sret instruction
|
||||
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.bits.prediction.valid := ex_reg_btb_hit
|
||||
io.imem.btb_update.bits.prediction.bits := ex_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.incorrectTarget := ex_reg_jalr && !io.dpath.jalr_eq
|
||||
io.imem.btb_update.bits.isCall := ex_reg_wen && io.dpath.ex_waddr(0)
|
||||
io.imem.btb_update.bits.isReturn := ex_reg_jalr && io.dpath.ex_rs(0) === 1
|
||||
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 := mem_reg_btb_hit
|
||||
io.imem.btb_update.bits.prediction.bits := mem_reg_btb_resp
|
||||
io.imem.btb_update.bits.taken := mem_reg_jal || mem_reg_branch && io.dpath.mem_br_taken
|
||||
io.imem.btb_update.bits.incorrectTarget := take_pc_mem
|
||||
io.imem.btb_update.bits.isJump := mem_reg_jal || mem_reg_jalr
|
||||
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
|
||||
|
||||
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.ren3 && id_raddr3 === 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)
|
||||
|
||||
// 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.ex_fp_val:= ex_reg_fp_val
|
||||
io.dpath.mem_fp_val:= mem_reg_fp_val
|
||||
io.dpath.ex_jalr := ex_reg_jalr
|
||||
io.dpath.ex_predicted_taken := ex_reg_branch && ex_reg_btb_hit && ex_reg_btb_resp.taken
|
||||
io.dpath.mem_jalr := mem_reg_jalr
|
||||
io.dpath.mem_branch := mem_reg_branch
|
||||
io.dpath.ex_wen := ex_reg_wen
|
||||
io.dpath.ex_valid := ex_reg_valid
|
||||
io.dpath.mem_wen := mem_reg_wen
|
||||
io.dpath.ll_ready := !wb_reg_wen
|
||||
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.sret := wb_reg_sret
|
||||
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_rocc_val := ex_reg_rocc_val
|
||||
io.dpath.mem_rocc_val := mem_reg_rocc_val
|
||||
|
||||
@ -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())
|
||||
bypass(BYP_0) := Bits(0)
|
||||
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),
|
||||
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)
|
||||
// other signals (req_val, req_rdy) connect to control module
|
||||
@ -197,17 +189,6 @@ class Datapath(implicit conf: RocketConfiguration) extends Module
|
||||
io.ptw.sret := io.ctrl.sret
|
||||
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
|
||||
mem_reg_kill := ex_reg_kill
|
||||
when (!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_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
|
||||
when (!mem_reg_kill) {
|
||||
wb_reg_pc := mem_reg_pc
|
||||
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) {
|
||||
wb_reg_rs2 := mem_reg_rs2
|
||||
@ -290,12 +280,12 @@ class Datapath(implicit conf: RocketConfiguration) extends Module
|
||||
|
||||
// hook up I$
|
||||
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,
|
||||
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.returnAddr := io.dmem.req.bits.addr & SInt(-4)
|
||||
io.imem.btb_update.bits.returnAddr := mem_int_wdata
|
||||
|
||||
// for hazard/bypass opportunity detection
|
||||
io.ctrl.ex_waddr := ex_reg_inst(11,7)
|
||||
|
||||
@ -14,10 +14,14 @@ object ALU
|
||||
val FN_OR = Bits(6)
|
||||
val FN_AND = Bits(7)
|
||||
val FN_SR = Bits(5)
|
||||
val FN_SUB = Bits(8)
|
||||
val FN_SLT = Bits(10)
|
||||
val FN_SLTU = Bits(11)
|
||||
val FN_SRA = Bits(13)
|
||||
val FN_SEQ = Bits(8)
|
||||
val FN_SNE = Bits(9)
|
||||
val FN_SUB = Bits(10)
|
||||
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_DIVU = FN_SR
|
||||
@ -31,7 +35,9 @@ object ALU
|
||||
|
||||
def isMulFN(fn: Bits, cmp: Bits) = fn(1,0) === cmp(1,0)
|
||||
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._
|
||||
|
||||
@ -52,8 +58,10 @@ class ALU(implicit conf: RocketConfiguration) extends Module
|
||||
val sum = io.in1 + Mux(isSub(io.fn), -io.in2, io.in2)
|
||||
|
||||
// SLT, SLTU
|
||||
val less = Mux(io.in1(63) === io.in2(63), sum(63),
|
||||
Mux(isSLTU(io.fn), io.in2(63), io.in1(63)))
|
||||
val cmp = cmpInverted(io.fn) ^
|
||||
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
|
||||
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 =
|
||||
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_SL, shout_l,
|
||||
Mux(io.fn === FN_AND, 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)))
|
||||
io.out := Cat(out_hi, out64(31,0)).toUInt
|
||||
|
||||
@ -70,7 +70,7 @@ class Frontend(implicit c: ICacheConfig, tl: TileLinkConfiguration) extends Modu
|
||||
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 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 s0_same_block = !icmiss && !io.cpu.req.valid && !btb.io.resp.bits.taken && ((pcp4 & (c.databits/8)) === (s1_pc & (c.databits/8)))
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user