diff options
Diffstat (limited to 'src/devices/bus/cbus/pc9801_26.cpp')
-rw-r--r-- | src/devices/bus/cbus/pc9801_26.cpp | 4 |
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)) |