From 74adbbcc5d392431f29c956cf65dfc0c7fa19337 Mon Sep 17 00:00:00 2001
From: jean-pierre charras <jp.charras@wanadoo.fr>
Date: Sat, 8 Aug 2020 15:18:50 +0200
Subject: [PATCH] Ensure values with units are displayed correctly when numbers
 are very small. from master branch. see
 https://gitlab.com/kicad/code/kicad/issues/5074

---
 eeschema/sim/spice_value.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/eeschema/sim/spice_value.cpp b/eeschema/sim/spice_value.cpp
index d31eb7e115..0355bea984 100644
--- a/eeschema/sim/spice_value.cpp
+++ b/eeschema/sim/spice_value.cpp
@@ -90,12 +90,18 @@ void SPICE_VALUE::Normalize()
     {
         m_base *= 0.001;
         m_prefix = (UNIT_PREFIX)( m_prefix + 3 );
+
+        if( m_prefix == PFX_TERA )     // this is the biggest unit available
+            break;
     }
 
     while( m_base != 0.0 && std::fabs( m_base ) < 1.000 )
     {
         m_base *= 1000.0;
         m_prefix = (UNIT_PREFIX)( m_prefix - 3 );
+
+        if( m_prefix == PFX_FEMTO )     // this is the smallest unit available
+            break;
     }
 }