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authorGravatarGravatar Ivan Vangelista <mesgnet@yahoo.it>2019-10-12 14:15:27 +0200
committerGravatarGravatar Ivan Vangelista <mesgnet@yahoo.it>2019-10-12 14:15:27 +0200
commit6a85f014b81a77a40125da9dfb76aee71ed36d28 (patch) (github)
tree6b96990f7b3ec98efda33e61ebaff3ecf12204ad
parent76d9f9c73648e2b373d2e1369e466d54210698a4 (diff)
downloadmame-6a85f014b81a77a40125da9dfb76aee71ed36d28.tar.bz2
mame-6a85f014b81a77a40125da9dfb76aee71ed36d28.zip
exedexes.cpp: measured maincpu clock, audiocpu clock and vsync [Corrado Tomaselli]
-rw-r--r--src/mame/drivers/exedexes.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mame/drivers/exedexes.cpp b/src/mame/drivers/exedexes.cpp
index 8d7f73b1454..7a18e98275f 100644
--- a/src/mame/drivers/exedexes.cpp
+++ b/src/mame/drivers/exedexes.cpp
@@ -210,11 +210,11 @@ void exedexes_state::machine_reset()
void exedexes_state::exedexes(machine_config &config)
{
/* basic machine hardware */
- Z80(config, m_maincpu, 4000000); /* 4 MHz (?) */
+ Z80(config, m_maincpu, 12_MHz_XTAL / 4); // 3 MHz, verified on PCB
m_maincpu->set_addrmap(AS_PROGRAM, &exedexes_state::exedexes_map);
TIMER(config, "scantimer").configure_scanline(FUNC(exedexes_state::scanline), "screen", 0, 1);
- z80_device &audiocpu(Z80(config, "audiocpu", 3000000)); /* 3 MHz ??? */
+ z80_device &audiocpu(Z80(config, "audiocpu", 12_MHz_XTAL / 4)); // 3 MHz, verified on PCB
audiocpu.set_addrmap(AS_PROGRAM, &exedexes_state::sound_map);
audiocpu.set_periodic_int(FUNC(exedexes_state::irq0_line_hold), attotime::from_hz(4*60));
@@ -222,7 +222,7 @@ void exedexes_state::exedexes(machine_config &config)
BUFFERED_SPRITERAM8(config, m_spriteram);
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
- screen.set_refresh_hz(60);
+ screen.set_refresh_hz(59.60); // verified on PCB
screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
screen.set_size(32*8, 32*8);
screen.set_visarea(0*8, 32*8-1, 2*8, 30*8-1);