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-rw-r--r--src/emu/xtal.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/emu/xtal.cpp b/src/emu/xtal.cpp
index fc606c4f7db..5f9d661acf6 100644
--- a/src/emu/xtal.cpp
+++ b/src/emu/xtal.cpp
@@ -550,12 +550,18 @@ bool XTAL::validate(double base_clock)
void XTAL::validate(const char *message) const
{
+ if(!m_base_clock || m_disable_validation)
+ return;
+
if(!validate(m_base_clock))
fail(m_base_clock, message);
}
void XTAL::validate(const std::string &message) const
{
+ if(!m_base_clock || m_disable_validation)
+ return;
+
if(!validate(m_base_clock))
fail(m_base_clock, message);
}