summaryrefslogtreecommitdiff
path: root/chiselFrontend/src/main/scala/chisel/core/SeqUtils.scala
diff options
context:
space:
mode:
authorJim Lawson2016-06-20 11:08:46 -0700
committerJim Lawson2016-06-20 11:08:46 -0700
commitd408d73a171535bd7c2ba9d0037c194022b8a62f (patch)
tree81885a99ec56e89532bc3fa338f22b163dcc4d1f /chiselFrontend/src/main/scala/chisel/core/SeqUtils.scala
parentb5a534914795d9d17f4dfe623525f1b804e4c60f (diff)
Rename chisel3 package.
Diffstat (limited to 'chiselFrontend/src/main/scala/chisel/core/SeqUtils.scala')
-rw-r--r--chiselFrontend/src/main/scala/chisel/core/SeqUtils.scala59
1 files changed, 0 insertions, 59 deletions
diff --git a/chiselFrontend/src/main/scala/chisel/core/SeqUtils.scala b/chiselFrontend/src/main/scala/chisel/core/SeqUtils.scala
deleted file mode 100644
index e31119a5..00000000
--- a/chiselFrontend/src/main/scala/chisel/core/SeqUtils.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-// See LICENSE for license details.
-
-package chisel.core
-
-import scala.language.experimental.macros
-
-import chisel.internal.sourceinfo.{SourceInfo, SourceInfoTransform}
-
-private[chisel] object SeqUtils {
- /** Equivalent to Cat(r(n-1), ..., r(0)) */
- def asUInt[T <: Bits](in: Seq[T]): UInt = macro SourceInfoTransform.inArg
-
- def do_asUInt[T <: Bits](in: Seq[T])(implicit sourceInfo: SourceInfo): UInt = {
- if (in.tail.isEmpty) {
- in.head.asUInt
- } else {
- val left = asUInt(in.slice(0, in.length/2))
- val right = asUInt(in.slice(in.length/2, in.length))
- right ## left
- }
- }
-
- /** Counts the number of true Bools in a Seq */
- def count(in: Seq[Bool]): UInt = macro SourceInfoTransform.inArg
-
- def do_count(in: Seq[Bool])(implicit sourceInfo: SourceInfo): UInt = {
- if (in.size == 0) {
- UInt(0)
- } else if (in.size == 1) {
- in.head
- } else {
- count(in.slice(0, in.size/2)) + (UInt(0) ## count(in.slice(in.size/2, in.size)))
- }
- }
-
- /** Returns data value corresponding to first true predicate */
- def priorityMux[T <: Data](in: Seq[(Bool, T)]): T = macro SourceInfoTransform.inArg
-
- def do_priorityMux[T <: Data](in: Seq[(Bool, T)])(implicit sourceInfo: SourceInfo): T = {
- if (in.size == 1) {
- in.head._2
- } else {
- Mux(in.head._1, in.head._2, priorityMux(in.tail))
- }
- }
-
- /** Returns data value corresponding to lone true predicate */
- def oneHotMux[T <: Data](in: Iterable[(Bool, T)]): T = macro SourceInfoTransform.inArg
-
- def do_oneHotMux[T <: Data](in: Iterable[(Bool, T)])(implicit sourceInfo: SourceInfo): T = {
- if (in.tail.isEmpty) {
- in.head._2
- } else {
- val masked = for ((s, i) <- in) yield Mux(s, i.toBits, Bits(0))
- val width = in.map(_._2.width).reduce(_ max _)
- in.head._2.cloneTypeWidth(width).fromBits(masked.reduceLeft(_|_))
- }
- }
-}