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author AJR <ajrhacker@users.noreply.github.com>2022-05-12 09:30:06 -0400
committer AJR <ajrhacker@users.noreply.github.com>2022-05-12 09:30:06 -0400
commitd1904214a8dec01f6c7d02b349b852c9b8f66842 (patch)
tree906b6f6f675649fa8d61bf6f80b60df6a42ac876
parent27bbd4a2c724d0f0ddbffa3514080a1e90a26d88 (diff)
avalnche: Change periodic interrupt to scanline interrupt; add watchdog timeout
-rw-r--r--src/mame/drivers/avalnche.cpp10
-rw-r--r--src/mame/includes/avalnche.h2
2 files changed, 10 insertions, 2 deletions
diff --git a/src/mame/drivers/avalnche.cpp b/src/mame/drivers/avalnche.cpp
index 7c8896238b9..588ffe46791 100644
--- a/src/mame/drivers/avalnche.cpp
+++ b/src/mame/drivers/avalnche.cpp
@@ -40,6 +40,11 @@
#include "avalnche.lh"
+TIMER_DEVICE_CALLBACK_MEMBER(avalnche_state::nmi_16v)
+{
+ m_maincpu->pulse_input_line(m6502_device::NMI_LINE, attotime::zero);
+}
+
/*************************************
*
* Video update
@@ -216,7 +221,8 @@ void avalnche_state::avalnche_base(machine_config &config)
/* basic machine hardware */
M6502(config, m_maincpu, 12.096_MHz_XTAL / 16); /* clock input is the "2H" signal divided by two */
m_maincpu->set_addrmap(AS_PROGRAM, &avalnche_state::main_map);
- m_maincpu->set_periodic_int(FUNC(avalnche_state::nmi_line_pulse), attotime::from_hz(8*60));
+
+ TIMER(config, "16v").configure_scanline(FUNC(avalnche_state::nmi_16v), "screen", 32, 32); // 8 interrupts per frame
F9334(config, m_latch); // F8
m_latch->q_out_cb<0>().set_output("led0"); // 1 CREDIT LAMP
@@ -225,7 +231,7 @@ void avalnche_state::avalnche_base(machine_config &config)
m_latch->q_out_cb<7>().set_output("led2"); // START LAMP
// Q1, Q4, Q5, Q6 are configured in audio/avalnche.cpp
- WATCHDOG_TIMER(config, "watchdog");
+ WATCHDOG_TIMER(config, "watchdog").set_vblank_count("screen", 10);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
diff --git a/src/mame/includes/avalnche.h b/src/mame/includes/avalnche.h
index 14d2b97c89e..ffd004e4824 100644
--- a/src/mame/includes/avalnche.h
+++ b/src/mame/includes/avalnche.h
@@ -7,6 +7,7 @@
*************************************************************************/
#include "machine/74259.h"
+#include "machine/timer.h"
#include "sound/discrete.h"
class avalnche_state : public driver_device
@@ -39,6 +40,7 @@ private:
DECLARE_WRITE_LINE_MEMBER(credit_2_lamp_w);
DECLARE_WRITE_LINE_MEMBER(start_lamp_w);
virtual void machine_start() override;
+ TIMER_DEVICE_CALLBACK_MEMBER(nmi_16v);
uint32_t screen_update_avalnche(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void avalnche_noise_amplitude_w(uint8_t data);
DECLARE_WRITE_LINE_MEMBER(catch_aud0_w);