riscv/rocket-chip
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clean up Int <-> Boolean conversion stuff

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This commit is contained in:
Andrew Waterman 2014-05-25 23:59:24 -07:00
parent ac88ded35a
commit 04593d433e
3 changed files with 16 additions and 10 deletions
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8
rocket/src/main/scala/ecc.scala
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@ -47,8 +47,8 @@ class ParityCode extends Code
class SECCode extends Code
{
def width(k: Int) = {
val m = log2Up(k) + 1 - !isPow2(k)
k + m + ((1 << m) < m+k+1)
val m = k.log2 + 1
k + m + ((1 << m) < m+k+1).toInt
}
def encode(x: Bits) = {
val k = x.getWidth
@ -57,7 +57,7 @@ class SECCode extends Code
val y = for (i <- 1 to n) yield {
if (isPow2(i)) {
val r = for (j <- 1 to n; if j != i && (j & i).toBoolean)
val r = for (j <- 1 to n; if j != i && (j & i) != 0)
yield x(mapping(j))
r reduce (_^_)
} else
@ -71,7 +71,7 @@ class SECCode extends Code
val p2 = for (i <- 0 until log2Up(n)) yield 1 << i
val syndrome = p2 map { i =>
val r = for (j <- 1 to n; if (j & i).toBoolean)
val r = for (j <- 1 to n; if (j & i) != 0)
yield y(j-1)
r reduce (_^_)
}

4
rocket/src/main/scala/tile.scala
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@ -23,11 +23,11 @@ case class RocketConfiguration(tl: TileLinkConfiguration, as: AddressSpaceConfig
class Tile(resetSignal: Bool = null)(confIn: RocketConfiguration) extends Module(_reset = resetSignal)
{
val memPorts = 2 + !confIn.rocc.isEmpty // Number of ports to outer memory system from tile: 1 from I$, 1 from D$, maybe 1 from Rocc
val memPorts = 2 + (!confIn.rocc.isEmpty).toInt // Number of ports to outer memory system from tile: 1 from I$, 1 from D$, maybe 1 from Rocc
val dcachePortId = 0
val icachePortId = 1
val roccPortId = 2
val dcachePorts = 2 + !confIn.rocc.isEmpty // Number of ports into D$: 1 from core, 1 from PTW, maybe 1 from RoCC
val dcachePorts = 2 + (!confIn.rocc.isEmpty).toInt // Number of ports into D$: 1 from core, 1 from PTW, maybe 1 from RoCC
implicit val tlConf = confIn.tl
implicit val lnConf = confIn.tl.ln
implicit val icConf = confIn.icache

14
rocket/src/main/scala/util.scala
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@ -4,8 +4,12 @@ import Chisel._
import uncore._
import scala.math._
class BooleanToInt(x: Int) {
def toBoolean: Boolean = if (x != 0) true else false
class Unsigned(x: Int) {
require(x >= 0)
def size: Int = { require(x > 0); ceil(log(x)/log(2)).toInt }
def log2: Int = { require(x > 0); floor(log(x)/log(2)).toInt }
def isPow2: Boolean = x > 0 && (x & (x-1)) == 0
def nextPow2: Int = if (x == 0) 1 else 1 << size
}
object Util {
@ -15,8 +19,10 @@ object Util {
implicit def seqToVec[T <: Data](x: Iterable[T]): Vec[T] = Vec(x)
implicit def wcToUInt(c: WideCounter): UInt = c.value
implicit def booleanToInt(x: Boolean): Int = if (x) 1 else 0
implicit def intToBooleanToInt(x: Int): BooleanToInt = new BooleanToInt(x)
implicit def intToUnsigned(x: Int): Unsigned = new Unsigned(x)
implicit def booleanToIntConv(x: Boolean) = new AnyRef {
def toInt: Int = if (x) 1 else 0
}
}
import Util._