diff options
| author | Jim Lawson | 2016-10-06 08:57:10 -0700 |
|---|---|---|
| committer | Jim Lawson | 2016-10-06 08:57:10 -0700 |
| commit | 82625071405672eb4a19363d6f73f359ac28a7f5 (patch) | |
| tree | dee5beff0e7333fa86c1cdcdb79c0d111114b8c9 /src/main/scala/Chisel/util/Math.scala | |
| parent | b7c6e0d1a2098b545938a5a8dfce2b1d9294532f (diff) | |
| parent | 7de30c2b893a3f24d43f2e131557430eb64f6bc8 (diff) | |
Merge branch 'master' into tobits-deprecation
Diffstat (limited to 'src/main/scala/Chisel/util/Math.scala')
| -rw-r--r-- | src/main/scala/Chisel/util/Math.scala | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/main/scala/Chisel/util/Math.scala b/src/main/scala/Chisel/util/Math.scala deleted file mode 100644 index 5f8212d8..00000000 --- a/src/main/scala/Chisel/util/Math.scala +++ /dev/null @@ -1,42 +0,0 @@ -// See LICENSE for license details. - -/** Scala-land math helper functions, like logs. - */ - -package 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)) -} |
