From bd0eadb311664d7ea7c11b3940a20228485dbee1 Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Sun, 8 Dec 2019 22:48:44 -0500
Subject: [PATCH] Fix handling user-botch of %d to print real.

---
 src/V3Number.cpp             | 2 ++
 test_regress/t/t_display.out | 1 +
 test_regress/t/t_display.v   | 4 ++++
 3 files changed, 7 insertions(+)

diff --git a/src/V3Number.cpp b/src/V3Number.cpp
index 5328da054..32d78bd63 100644
--- a/src/V3Number.cpp
+++ b/src/V3Number.cpp
@@ -741,6 +741,7 @@ vlsint32_t V3Number::toSInt() const {
 vluint64_t V3Number::toUQuad() const {
     UASSERT(!isFourState(), "toUQuad with 4-state "<<*this);
     // We allow wide numbers that represent values <= 64 bits
+    if (isDouble()) return static_cast<vluint64_t>(toDouble());
     for (int i=2; i<words(); ++i) {
         if (m_value[i]) {
             v3error("Value too wide for 64-bits expected in this context "<<*this);
@@ -753,6 +754,7 @@ vluint64_t V3Number::toUQuad() const {
 }
 
 vlsint64_t V3Number::toSQuad() const {
+    if (isDouble()) return static_cast<vlsint64_t>(toDouble());
     vluint64_t v = toUQuad();
     vluint64_t signExtend = (-(v & (VL_ULL(1)<<(width()-1))));
     vluint64_t extended = v | signExtend;
diff --git a/test_regress/t/t_display.out b/test_regress/t/t_display.out
index 5ab2b8849..10667f059 100644
--- a/test_regress/t/t_display.out
+++ b/test_regress/t/t_display.out
@@ -49,4 +49,5 @@ extra argument: 0000000000000000
 [0] Embedded <#013> return
 [0] Embedded
 multiline
+log10(2) =                    2
 *-* All Finished *-*
diff --git a/test_regress/t/t_display.v b/test_regress/t/t_display.v
index 87fff05bf..da6ab3f7c 100644
--- a/test_regress/t/t_display.v
+++ b/test_regress/t/t_display.v
@@ -139,6 +139,10 @@ multiline", $time);
 `ifndef NC      // NC-Verilog 5.3 chokes on this test
       if (str !== 32'h00_bf_11_0a) $stop;
 `endif
+
+      // $itord conversion bug, note a %d instead of proper float
+      $display("log10(2) = %d", $log10(100));
+
       $write("*-* All Finished *-*\n");
       $finish;
    end