diff --git a/hardfloat/src/main/scala/DivSqrtRecFN_small.scala b/hardfloat/src/main/scala/DivSqrtRecFN_small.scala
index a308298..2d79a18 100644
--- a/hardfloat/src/main/scala/DivSqrtRecFN_small.scala
+++ b/hardfloat/src/main/scala/DivSqrtRecFN_small.scala
@@ -199,6 +199,7 @@ class
     DivSqrtRawFN_small(expWidth: Int, sigWidth: Int, options: Int)
     extends Module
 {
+    override def desiredName = s"DivSqrtRawFN_small_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         /*--------------------------------------------------------------------
         *--------------------------------------------------------------------*/
@@ -421,6 +422,7 @@ class
     DivSqrtRecFNToRaw_small(expWidth: Int, sigWidth: Int, options: Int)
     extends Module
 {
+    override def desiredName = s"DivSqrtRecFMToRaw_small_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         /*--------------------------------------------------------------------
         *--------------------------------------------------------------------*/
@@ -466,6 +468,7 @@ class
     DivSqrtRecFN_small(expWidth: Int, sigWidth: Int, options: Int)
     extends Module
 {
+    override def desiredName = s"DivSqrtRecFM_small_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         /*--------------------------------------------------------------------
         *--------------------------------------------------------------------*/
diff --git a/hardfloat/src/main/scala/INToRecFN.scala b/hardfloat/src/main/scala/INToRecFN.scala
index 280cff8..d45aa9f 100644
--- a/hardfloat/src/main/scala/INToRecFN.scala
+++ b/hardfloat/src/main/scala/INToRecFN.scala
@@ -42,6 +42,7 @@ import consts._
 
 class INToRecFN(intWidth: Int, expWidth: Int, sigWidth: Int) extends RawModule
 {
+    override def desiredName = s"INToRecFN_i${intWidth}_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         val signedIn = Input(Bool())
         val in = Input(Bits(intWidth.W))
diff --git a/hardfloat/src/main/scala/MulAddRecFN.scala b/hardfloat/src/main/scala/MulAddRecFN.scala
index 7ad46c1..bd49cc3 100644
--- a/hardfloat/src/main/scala/MulAddRecFN.scala
+++ b/hardfloat/src/main/scala/MulAddRecFN.scala
@@ -70,6 +70,7 @@ class MulAddRecFN_interIo(expWidth: Int, sigWidth: Int) extends Bundle
 //----------------------------------------------------------------------------
 class MulAddRecFNToRaw_preMul(expWidth: Int, sigWidth: Int) extends RawModule
 {
+    override def desiredName = s"MulAddRecFNToRaw_preMul_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         val op = Input(Bits(2.W))
         val a = Input(Bits((expWidth + sigWidth + 1).W))
@@ -167,6 +168,7 @@ class MulAddRecFNToRaw_preMul(expWidth: Int, sigWidth: Int) extends RawModule
 //----------------------------------------------------------------------------
 class MulAddRecFNToRaw_postMul(expWidth: Int, sigWidth: Int) extends RawModule
 {
+    override def desiredName = s"MulAddRecFNToRaw_postMul_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         val fromPreMul = Input(new MulAddRecFN_interIo(expWidth, sigWidth))
         val mulAddResult = Input(UInt((sigWidth * 2 + 1).W))
@@ -297,6 +299,7 @@ class MulAddRecFNToRaw_postMul(expWidth: Int, sigWidth: Int) extends RawModule
 
 class MulAddRecFN(expWidth: Int, sigWidth: Int) extends RawModule
 {
+    override def desiredName = s"MulAddRecFN_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         val op = Input(Bits(2.W))
         val a = Input(Bits((expWidth + sigWidth + 1).W))
diff --git a/hardfloat/src/main/scala/RecFNToIN.scala b/hardfloat/src/main/scala/RecFNToIN.scala
index 3c2b037..ea86ccf 100644
--- a/hardfloat/src/main/scala/RecFNToIN.scala
+++ b/hardfloat/src/main/scala/RecFNToIN.scala
@@ -45,6 +45,7 @@ import consts._
 
 class RecFNToIN(expWidth: Int, sigWidth: Int, intWidth: Int) extends chisel3.Module
 {
+    override def desiredName = s"RecFNToIN_e${expWidth}_s${sigWidth}_i${intWidth}"
     val io = IO(new Bundle {
         val in = Input(Bits((expWidth + sigWidth + 1).W))
         val roundingMode = Input(UInt(3.W))
diff --git a/hardfloat/src/main/scala/RoundAnyRawFNToRecFN.scala b/hardfloat/src/main/scala/RoundAnyRawFNToRecFN.scala
index de8635f..34ecf32 100644
--- a/hardfloat/src/main/scala/RoundAnyRawFNToRecFN.scala
+++ b/hardfloat/src/main/scala/RoundAnyRawFNToRecFN.scala
@@ -54,6 +54,7 @@ class
     )
     extends RawModule
 {
+    override def desiredName = s"RoundAnyRawFNToRecFN_ie${inExpWidth}_is${inSigWidth}_oe${outExpWidth}_os${outSigWidth}"
     val io = IO(new Bundle {
         val invalidExc  = Input(Bool())   // overrides 'infiniteExc' and 'in'
         val infiniteExc = Input(Bool())   // overrides 'in' except for 'in.sign'
@@ -294,6 +295,7 @@ class
     RoundRawFNToRecFN(expWidth: Int, sigWidth: Int, options: Int)
     extends RawModule
 {
+    override def desiredName = s"RoundRawFNToRecFN_e${expWidth}_s${sigWidth}"
     val io = IO(new Bundle {
         val invalidExc  = Input(Bool())   // overrides 'infiniteExc' and 'in'
         val infiniteExc = Input(Bool())   // overrides 'in' except for 'in.sign'