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authorJim Lawson2016-07-06 10:01:23 -0700
committerJim Lawson2016-07-18 15:17:56 -0700
commitc5f9ea3133ef363ff8944e17d94fea79767b6bed (patch)
treecc80a6df1eb58f0feaf9f138eb7fe261ccda4ea2 /chiselFrontend/src/main/scala/chisel3/core/Printf.scala
parent53813f61b7dfe246d214ab966739d01c65c8ecb0 (diff)
Rename "Chisel" to "chisel3" (only git mv).
Diffstat (limited to 'chiselFrontend/src/main/scala/chisel3/core/Printf.scala')
-rw-r--r--chiselFrontend/src/main/scala/chisel3/core/Printf.scala36
1 files changed, 36 insertions, 0 deletions
diff --git a/chiselFrontend/src/main/scala/chisel3/core/Printf.scala b/chiselFrontend/src/main/scala/chisel3/core/Printf.scala
new file mode 100644
index 00000000..f068f637
--- /dev/null
+++ b/chiselFrontend/src/main/scala/chisel3/core/Printf.scala
@@ -0,0 +1,36 @@
+// See LICENSE for license details.
+
+package Chisel
+
+import scala.language.experimental.macros
+
+import internal._
+import internal.Builder.pushCommand
+import internal.firrtl._
+import internal.sourceinfo.SourceInfo
+
+object printf { // scalastyle:ignore object.name
+ /** Prints a message in simulation.
+ *
+ * Does not fire when in reset (defined as the encapsulating Module's
+ * reset). If your definition of reset is not the encapsulating Module's
+ * reset, you will need to gate this externally.
+ *
+ * May be called outside of a Module (like defined in a function), so
+ * functions using printf make the standard Module assumptions (single clock
+ * and single reset).
+ *
+ * @param fmt printf format string
+ * @param data format string varargs containing data to print
+ */
+ def apply(fmt: String, data: Bits*)(implicit sourceInfo: SourceInfo) {
+ when (!(Builder.dynamicContext.currentModule.get.reset)) {
+ printfWithoutReset(fmt, data:_*)
+ }
+ }
+
+ private[Chisel] def printfWithoutReset(fmt: String, data: Bits*)(implicit sourceInfo: SourceInfo) {
+ val clock = Builder.dynamicContext.currentModule.get.clock
+ pushCommand(Printf(sourceInfo, Node(clock), fmt, data.map((d: Bits) => d.ref)))
+ }
+}