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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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._