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author hap <happppp@users.noreply.github.com>2019-02-25 00:22:06 +0100
committer hap <happppp@users.noreply.github.com>2019-02-25 00:22:27 +0100
commitf952dc937c7d6bdab7ae7a3dc5b6f7064a14be41 (patch)
tree6064946e82e63190c703eb2e6a020793ee5570c4
parent73c84827311859e7d851d4b43faa92092201269a (diff)
sc1/sc2 are not 4mhz (nw)
-rw-r--r--src/mame/drivers/sc1.cpp2
-rw-r--r--src/mame/drivers/sc2.cpp6
2 files changed, 4 insertions, 4 deletions
diff --git a/src/mame/drivers/sc1.cpp b/src/mame/drivers/sc1.cpp
index 94dc6ce8c18..d6da7214f88 100644
--- a/src/mame/drivers/sc1.cpp
+++ b/src/mame/drivers/sc1.cpp
@@ -161,7 +161,7 @@ INPUT_PORTS_END
void sc1_state::sc1(machine_config &config)
{
/* basic machine hardware */
- Z80(config, m_maincpu, XTAL(4'000'000));
+ Z80(config, m_maincpu, 9.8304_MHz_XTAL/4); // U880 Z80 clone
m_maincpu->set_addrmap(AS_PROGRAM, &sc1_state::sc1_mem);
m_maincpu->set_addrmap(AS_IO, &sc1_state::sc1_io);
diff --git a/src/mame/drivers/sc2.cpp b/src/mame/drivers/sc2.cpp
index 53e5fcd6699..32c1131b695 100644
--- a/src/mame/drivers/sc2.cpp
+++ b/src/mame/drivers/sc2.cpp
@@ -5,7 +5,7 @@
Schachcomputer SC2
Note:
- The HW is very similar to Fidelity Chess Challenger series (see fidelz80.c)
+ The HW is very similar to Fidelity Chess Challenger series
12/05/2009 Skeleton driver.
@@ -215,7 +215,7 @@ WRITE8_MEMBER( sc2_state::pio_port_b_w )
void sc2_state::sc2(machine_config &config)
{
/* basic machine hardware */
- Z80(config, m_maincpu, XTAL(4'000'000));
+ Z80(config, m_maincpu, 9.8304_MHz_XTAL/4); // U880 Z80 clone
m_maincpu->set_addrmap(AS_PROGRAM, &sc2_state::sc2_mem);
m_maincpu->set_addrmap(AS_IO, &sc2_state::sc2_io);
@@ -223,7 +223,7 @@ void sc2_state::sc2(machine_config &config)
config.set_default_layout(layout_sc2);
/* devices */
- z80pio_device& pio(Z80PIO(config, "z80pio", XTAL(4'000'000)));
+ z80pio_device& pio(Z80PIO(config, "z80pio", 9.8304_MHz_XTAL/4));
pio.in_pa_callback().set(FUNC(sc2_state::pio_port_a_r));
pio.out_pa_callback().set(FUNC(sc2_state::pio_port_a_w));
pio.in_pb_callback().set(FUNC(sc2_state::pio_port_b_r));