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-rw-r--r--src/emu/xtal.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/emu/xtal.cpp b/src/emu/xtal.cpp
index 91bf4814fe9..ee2c0c1733b 100644
--- a/src/emu/xtal.cpp
+++ b/src/emu/xtal.cpp
@@ -348,6 +348,7 @@ const double XTAL::known_xtals[] = {
50'000'000, /* 50_MHz_XTAL Williams/Midway T/W/V-unit system */
50'113'000, /* 50.113_MHz_XTAL Namco NA-1 (14x NTSC subcarrier)*/
50'349'000, /* 50.349_MHz_XTAL Sega System 18 (~3200x NTSC line rate) */
+ 51'200'000, /* 51.2_MHz_XTAL Namco Super System 22 video clock */
52'000'000, /* 52_MHz_XTAL Cojag */
52'832'000, /* 52.832_MHz_XTAL Wang PC TIG video controller */
53'203'400, /* 53.2034_MHz_XTAL Master System, Mega Drive PAL (~12x PAL subcarrier) */