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Diffstat (limited to 'src/devices/bus/cbus/pc9801_26.cpp')
-rw-r--r--src/devices/bus/cbus/pc9801_26.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/devices/bus/cbus/pc9801_26.cpp b/src/devices/bus/cbus/pc9801_26.cpp
index 2e2001b7781..729e173bec3 100644
--- a/src/devices/bus/cbus/pc9801_26.cpp
+++ b/src/devices/bus/cbus/pc9801_26.cpp
@@ -18,8 +18,6 @@
#include "speaker.h"
-#define MAIN_CLOCK_X1 XTAL(1'996'800)
-
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
@@ -40,7 +38,7 @@ WRITE_LINE_MEMBER(pc9801_26_device::sound_irq)
MACHINE_CONFIG_START(pc9801_26_device::device_add_mconfig)
SPEAKER(config, "mono").front_center();
- MCFG_DEVICE_ADD("opn", YM2203, MAIN_CLOCK_X1*2) // unknown clock / divider
+ MCFG_DEVICE_ADD("opn", YM2203, 15.9744_MHz_XTAL / 4) // divider not verified
MCFG_YM2203_IRQ_HANDLER(WRITELINE(*this, pc9801_26_device, sound_irq))
MCFG_AY8910_PORT_A_READ_CB(READ8(*this, pc9801_26_device, opn_porta_r))
//MCFG_AY8910_PORT_B_READ_CB(READ8(*this, pc9801_state, opn_portb_r))