From 5901c57caab635c0d5c1a7ac6502ea7872f44001 Mon Sep 17 00:00:00 2001
From: Adam Izraelevitz
Date: Wed, 24 Feb 2016 20:36:47 -0800
Subject: Fixed printf bugs in scala and stanza versions. Required special
 casing prints in SplitExp, and emitting expressions instead of their toString
 counterparts

---
 src/main/scala/firrtl/Emitter.scala       | 15 +--------------
 src/main/scala/firrtl/passes/Passes.scala | 11 +++++++++--
 2 files changed, 10 insertions(+), 16 deletions(-)

(limited to 'src/main/scala')

diff --git a/src/main/scala/firrtl/Emitter.scala b/src/main/scala/firrtl/Emitter.scala
index 04552de4..94eca465 100644
--- a/src/main/scala/firrtl/Emitter.scala
+++ b/src/main/scala/firrtl/Emitter.scala
@@ -362,21 +362,8 @@ object VerilogEmitter extends Emitter {
          Seq("$fdisplay(32'h80000002,\"",ret,"\");$finish;")
       }
       def printf (str:String,args:Seq[Expression]) : Seq[Any] = {
-         def emitArg(exp: Expression): String = {
-            exp match {
-               case v: UIntValue => s"${v.width match {
-                  case w: IntWidth => w.width.toString
-               }}'H${v.value.toString(16)}"
-               case v: SIntValue => s"${v.width match {
-                  case w: IntWidth => w.width.toString
-               }}'sH${v.value.toString(16)}"
-               case r: Ref => r.name
-               case r: WRef => r.name
-               case _ => error("Unexpected expression in printf: " + exp.serialize)
-            }
-         }
          val q = '"'.toString
-         val strx = (Seq(q + escape(str) + q) ++ args.map(x => emitArg(x))).reduce(_ + "," + _)
+	 val strx = (Seq(q + escape(str) + q) ++ args.flatMap(x => Seq(",",x)))
          Seq("$fwrite(32'h80000002,",strx,");")
       }
       def delay (e:Expression, n:Int, clk:Expression) : Expression = {
diff --git a/src/main/scala/firrtl/passes/Passes.scala b/src/main/scala/firrtl/passes/Passes.scala
index e8a2106c..69372b9f 100644
--- a/src/main/scala/firrtl/passes/Passes.scala
+++ b/src/main/scala/firrtl/passes/Passes.scala
@@ -1252,9 +1252,16 @@ object SplitExp extends Pass {
                case (e) => e
             }
          }
-         eMap(split_exp_e(0) _,s) match {
+	 s match {
             case (s:Begin) => sMap(split_exp_s _,s)
-            case (s) => v += s; s
+	    case (s:Print) => {
+		val sx = eMap(split_exp_e(1) _,s)
+                v += sx; sx
+	    }
+            case (s) => {
+		val sx = eMap(split_exp_e(0) _,s)
+                v += sx; sx
+	    }
          }
       }
       split_exp_s(m.body)
-- 
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