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-rw-r--r--src/mame/drivers/alto2.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/alto2.cpp b/src/mame/drivers/alto2.cpp
index 99b35501ad6..d06368e5861 100644
--- a/src/mame/drivers/alto2.cpp
+++ b/src/mame/drivers/alto2.cpp
@@ -277,14 +277,14 @@ MACHINE_CONFIG_START(alto2_state::alto2)
// Basic machine hardware
// SYSCLK is Display Control part A51 (tagged 29.4MHz) divided by 5(?)
// 5.8MHz according to de.wikipedia.org/wiki/Xerox_Alto
- MCFG_CPU_ADD("maincpu", ALTO2, XTAL_29_4912MHz/5)
+ MCFG_CPU_ADD("maincpu", ALTO2, XTAL(29'491'200)/5)
MCFG_CPU_PROGRAM_MAP(alto2_ucode_map)
MCFG_CPU_DATA_MAP(alto2_const_map)
MCFG_CPU_IO_MAP(alto2_iomem_map)
// Video hardware
MCFG_SCREEN_ADD_MONOCHROME("screen", RASTER, rgb_t::white())
- MCFG_SCREEN_RAW_PARAMS(XTAL_20_16MHz,
+ MCFG_SCREEN_RAW_PARAMS(XTAL(20'160'000),
A2_DISP_TOTAL_WIDTH, 0, A2_DISP_WIDTH,
A2_DISP_TOTAL_HEIGHT, 0, A2_DISP_HEIGHT)
// Two interlaced fields at 60Hz => 30Hz frame rate