diff options
| author | Jim Lawson | 2016-06-20 11:08:46 -0700 |
|---|---|---|
| committer | Jim Lawson | 2016-06-20 11:08:46 -0700 |
| commit | d408d73a171535bd7c2ba9d0037c194022b8a62f (patch) | |
| tree | 81885a99ec56e89532bc3fa338f22b163dcc4d1f /src/main/scala/chisel/util/Math.scala | |
| parent | b5a534914795d9d17f4dfe623525f1b804e4c60f (diff) | |
Rename chisel3 package.
Diffstat (limited to 'src/main/scala/chisel/util/Math.scala')
| -rw-r--r-- | src/main/scala/chisel/util/Math.scala | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/src/main/scala/chisel/util/Math.scala b/src/main/scala/chisel/util/Math.scala deleted file mode 100644 index 69464d15..00000000 --- a/src/main/scala/chisel/util/Math.scala +++ /dev/null @@ -1,44 +0,0 @@ -// See LICENSE for license details. - -/** Scala-land math helper functions, like logs. - */ - -package chisel.util - -import chisel._ - -/** Compute the log2 rounded up with min value of 1 */ -object log2Up { - def apply(in: BigInt): Int = { - require(in >= 0) - 1 max (in-1).bitLength - } - def apply(in: Int): Int = apply(BigInt(in)) -} - -/** Compute the log2 rounded up */ -object log2Ceil { - def apply(in: BigInt): Int = { - require(in > 0) - (in-1).bitLength - } - def apply(in: Int): Int = apply(BigInt(in)) -} - -/** Compute the log2 rounded down with min value of 1 */ -object log2Down { - def apply(in: BigInt): Int = log2Up(in) - (if (isPow2(in)) 0 else 1) - def apply(in: Int): Int = apply(BigInt(in)) -} - -/** Compute the log2 rounded down */ -object log2Floor { - def apply(in: BigInt): Int = log2Ceil(in) - (if (isPow2(in)) 0 else 1) - def apply(in: Int): Int = apply(BigInt(in)) -} - -/** Check if an Integer is a power of 2 */ -object isPow2 { - def apply(in: BigInt): Boolean = in > 0 && ((in & (in-1)) == 0) - def apply(in: Int): Boolean = apply(BigInt(in)) -} |
