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-rw-r--r--src/mame/drivers/radicasi.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/radicasi.cpp b/src/mame/drivers/radicasi.cpp
index 287fa8e99b3..a821e5759d4 100644
--- a/src/mame/drivers/radicasi.cpp
+++ b/src/mame/drivers/radicasi.cpp
@@ -1584,7 +1584,7 @@ INTERRUPT_GEN_MEMBER(radica_6502_state::interrupt)
MACHINE_CONFIG_START(radica_6502_state::radicasi)
/* basic machine hardware */
- MCFG_CPU_ADD("maincpu",M6502,XTAL_21_28137MHz/2) // Tetris has a XTAL_21_28137MHz, not confirmed on Space Invaders, actual CPU clock unknown.
+ MCFG_CPU_ADD("maincpu",M6502,XTAL(21'281'370)/2) // Tetris has a XTAL(21'281'370), not confirmed on Space Invaders, actual CPU clock unknown.
MCFG_CPU_PROGRAM_MAP(radicasi_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", radica_6502_state, interrupt)