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technos/tagteam.cpp: Periodic IRQ modernization

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This commit is contained in:
AJR 2024-12-08 19:09:25 -05:00
parent 28883ca9ee
commit 3aa6b60a88
1 changed files with 8 additions and 5 deletions
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13
src/mame/technos/tagteam.cpp
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@ -30,6 +30,7 @@ TODO:
#include "cpu/m6502/m6502.h"
#include "machine/gen_latch.h"
#include "machine/timer.h"
#include "sound/ay8910.h"
#include "sound/dac.h"
#include "video/resnet.h"
@ -89,7 +90,7 @@ private:
void control_w(uint8_t data);
void flipscreen_w(uint8_t data);
INTERRUPT_GEN_MEMBER(sound_timer_irq);
TIMER_DEVICE_CALLBACK_MEMBER(v8_timer_irq);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
@ -427,10 +428,12 @@ static GFXDECODE_START( gfx_tagteam )
GFXDECODE_END
INTERRUPT_GEN_MEMBER(tagteam_state::sound_timer_irq)
TIMER_DEVICE_CALLBACK_MEMBER(tagteam_state::v8_timer_irq)
{
// same source for both interrupts
m_maincpu->set_input_line(M6502_IRQ_LINE, ASSERT_LINE);
if (m_sound_nmi_mask)
device.execute().pulse_input_line(INPUT_LINE_NMI, attotime::zero);
m_audiocpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
}
@ -439,11 +442,11 @@ void tagteam_state::tagteam(machine_config &config)
// basic machine hardware
M6502(config, m_maincpu, 12_MHz_XTAL / 8);
m_maincpu->set_addrmap(AS_PROGRAM, &tagteam_state::main_map);
m_maincpu->set_periodic_int(FUNC(tagteam_state::irq0_line_assert), attotime::from_hz(272 / 16 * 57)); // connected to bit 4 of vcount (basically once every 16 scanlines)
M6502(config, m_audiocpu, 12_MHz_XTAL / 2 / 6); // daughterboard gets 12mhz / 2 from mainboard, but how it's divided further is a guess
m_audiocpu->set_addrmap(AS_PROGRAM, &tagteam_state::sound_map);
m_audiocpu->set_periodic_int(FUNC(tagteam_state::sound_timer_irq), attotime::from_hz(272 / 16 * 57)); // same source as maincpu IRQ
TIMER(config, "v8").configure_scanline(FUNC(tagteam_state::v8_timer_irq), "screen", 8, 16); // connected to bit 4 of vcount (basically once every 16 scanlines)
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));