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https://github.com/holub/mame
synced 2025-04-23 08:49:55 +03:00
deco32.cpp: rewritten interrupt handling [Angelo Salese]
This commit is contained in:
angelosa
parent
1e390a3030
commit
82aa3c2ad4
@ -376,42 +376,52 @@ NOTE: There are several unpopulated locations (denoted by *) for additional rom
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/**********************************************************************************/
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TIMER_DEVICE_CALLBACK_MEMBER(deco32_state::interrupt_gen)
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void deco32_state::update_irq_state(uint8_t irq_cause, bool assert_state)
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{
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m_maincpu->set_input_line(ARM_IRQ_LINE, HOLD_LINE);
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if(assert_state == true)
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m_irq_cause |= irq_cause;
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else
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m_irq_cause &= ~irq_cause;
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m_maincpu->set_input_line(ARM_IRQ_LINE, (m_irq_cause != 0) ? ASSERT_LINE : CLEAR_LINE);
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}
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INTERRUPT_GEN_MEMBER(deco32_state::vblank_irq_gen)
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{
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update_irq_state(VBLANK_IRQ,true);
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}
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TIMER_DEVICE_CALLBACK_MEMBER(deco32_state::raster_irq_gen)
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{
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update_irq_state(RASTER_IRQ,true);
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}
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READ32_MEMBER(deco32_state::irq_controller_r)
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{
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int vblank;
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switch (offset)
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{
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case 2: /* Raster IRQ ACK - value read is not used */
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m_maincpu->set_input_line(ARM_IRQ_LINE, CLEAR_LINE);
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return 0;
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case 2: /* Raster IRQ ACK - value read is not used */
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update_irq_state(RASTER_IRQ,false);
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return 0;
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case 3: /* Irq controller
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/* Irq controller
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Bit 0: 1 = Vblank active
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Bit 1: ? (Hblank active? Captain America raster IRQ waits for this to go low)
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Bit 2:
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Bit 3:
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Bit 4: VBL Irq
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Bit 5: Raster IRQ
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Bit 6: Lightgun IRQ (on Lock N Load only)
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Bit 7:
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*/
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/* ZV03082007 - video_screen_get_vblank() doesn't work for Captain America, as it expects
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that this bit is NOT set in rows 0-7. */
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vblank = m_screen->vpos() > m_screen->visible_area().max_y;
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if (vblank)
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return 0xffffff80 | 0x1 | 0x10; /* Assume VBL takes priority over possible raster/lightgun irq */
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return 0xffffff80 | vblank | ((m_irq_source) ? 0x40 : 0x20);
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// return 0xffffff80 | vblank | (0x40); //test for lock load guns
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Bit 0: 1 = Vblank active
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Bit 1: ? (Hblank active? Captain America raster IRQ waits for this to go low)
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Bit 2:
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Bit 3:
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Bit 4: VBL Irq
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Bit 5: Raster IRQ
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Bit 6: Lightgun IRQ (on Lock N Load only)
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Bit 7:
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*/
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case 3:
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{
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/* ZV03082007 - video_screen_get_vblank() doesn't work for Captain America, as it expects
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that this bit is NOT set in rows 0-7. */
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bool hvblank = m_screen->vblank() & m_screen->hblank();
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return 0xffffff80 | hvblank | m_screen->vblank()<<1 | (m_irq_cause);
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}
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}
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logerror("%08x: Unmapped IRQ read %08x (%08x)\n",space.device().safe_pc(),offset,mem_mask);
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@ -429,19 +439,29 @@ WRITE32_MEMBER(deco32_state::irq_controller_w)
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break;
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case 1: /* Raster IRQ scanline position, only valid for values between 1 & 239 (0 and 240-256 do NOT generate IRQ's) */
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{
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scanline=(data&0xff);
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if (m_raster_enable && scanline>0 && scanline<240)
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{
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//printf("%d\n",scanline);
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if (m_raster_enable && scanline != 0)
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m_raster_irq_timer->adjust(m_screen->time_until_pos(scanline-1, 0));
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}
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else
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m_raster_irq_timer->reset();
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break;
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}
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case 2: /* VBL irq ack */
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update_irq_state(VBLANK_IRQ,false);
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break;
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}
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}
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// TODO: probably clears both player 1 and player 2
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WRITE32_MEMBER(dragngun_state::gun_irq_ack_w)
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{
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update_irq_state(LIGHTGUN_IRQ,false);
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}
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WRITE32_MEMBER(deco32_state::sound_w)
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{
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m_soundlatch->write(space, 0, data & 0xff);
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@ -1032,7 +1052,7 @@ static ADDRESS_MAP_START( lockload_map, AS_PROGRAM, 32, dragngun_state )
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AM_RANGE(0x138008, 0x13800b) AM_WRITE(palette_dma_w)
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AM_RANGE(0x170000, 0x170007) AM_READ(lockload_gun_mirror_r) /* Not on Dragongun */
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AM_RANGE(0x178008, 0x17800f) AM_WRITENOP /* Gun read ACK's */
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AM_RANGE(0x178008, 0x17800f) AM_WRITE(gun_irq_ack_w) /* Gun read ACK's */
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AM_RANGE(0x180000, 0x18001f) AM_DEVREADWRITE("tilegen1", deco16ic_device, pf_control_dword_r, pf_control_dword_w)
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AM_RANGE(0x190000, 0x191fff) AM_DEVREADWRITE("tilegen1", deco16ic_device, pf1_data_dword_r, pf1_data_dword_w)
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@ -1799,10 +1819,6 @@ MACHINE_RESET_MEMBER(deco32_state,deco32)
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m_raster_irq_timer = machine().device<timer_device>("int_timer");
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}
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INTERRUPT_GEN_MEMBER(deco32_state::deco32_vbl_interrupt)
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{
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device.execute().set_input_line(ARM_IRQ_LINE, HOLD_LINE);
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}
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DECOSPR_PRIORITY_CB_MEMBER(deco32_state::captaven_pri_callback)
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{
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@ -1837,19 +1853,20 @@ static MACHINE_CONFIG_START( captaven )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", ARM, XTAL_28MHz/4) /* verified on pcb (Data East 101 custom)*/
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MCFG_CPU_PROGRAM_MAP(captaven_map)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, deco32_vbl_interrupt)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, vblank_irq_gen)
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MCFG_CPU_ADD("audiocpu", H6280, XTAL_32_22MHz/4/3) /* pin 10 is 32mhz/4, pin 14 is High so internal divisor is 3 (verified on pcb) */
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MCFG_CPU_PROGRAM_MAP(sound_map)
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MCFG_MACHINE_RESET_OVERRIDE(deco32_state,deco32)
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MCFG_TIMER_DRIVER_ADD("int_timer", deco32_state, interrupt_gen)
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MCFG_TIMER_DRIVER_ADD("int_timer", deco32_state, raster_irq_gen)
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_SIZE(42*8, 32*8)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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// MCFG_SCREEN_REFRESH_RATE(60)
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// MCFG_SCREEN_SIZE(42*8, 32*8)
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// MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_UPDATE_DRIVER(deco32_state, screen_update_captaven)
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MCFG_SCREEN_PALETTE("palette")
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@ -1943,7 +1960,7 @@ static MACHINE_CONFIG_START( fghthist ) /* DE-0380-2 PCB */
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", ARM, 28000000/4)
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MCFG_CPU_PROGRAM_MAP(fghthist_map)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, deco32_vbl_interrupt)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, vblank_irq_gen)
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MCFG_CPU_ADD("audiocpu", H6280, 32220000/8)
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MCFG_CPU_PROGRAM_MAP(sound_map)
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@ -1951,9 +1968,10 @@ static MACHINE_CONFIG_START( fghthist ) /* DE-0380-2 PCB */
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MCFG_EEPROM_SERIAL_93C46_ADD("eeprom")
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_SIZE(42*8, 32*8)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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// MCFG_SCREEN_REFRESH_RATE(60)
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// MCFG_SCREEN_SIZE(42*8, 32*8)
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// MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_UPDATE_DRIVER(deco32_state, screen_update_fghthist)
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", fghthist)
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@ -2028,7 +2046,7 @@ static MACHINE_CONFIG_START( fghthsta ) /* DE-0395-1 PCB */
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", ARM, 28000000/4)
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MCFG_CPU_PROGRAM_MAP(fghthsta_memmap)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, deco32_vbl_interrupt)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, vblank_irq_gen)
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MCFG_CPU_ADD("audiocpu", H6280, 32220000/8)
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MCFG_CPU_PROGRAM_MAP(sound_map)
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@ -2036,9 +2054,10 @@ static MACHINE_CONFIG_START( fghthsta ) /* DE-0395-1 PCB */
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MCFG_EEPROM_SERIAL_93C46_ADD("eeprom")
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_SIZE(42*8, 32*8)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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// MCFG_SCREEN_REFRESH_RATE(60)
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// MCFG_SCREEN_SIZE(42*8, 32*8)
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// MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_UPDATE_DRIVER(deco32_state, screen_update_fghthist)
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", fghthist)
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@ -2151,7 +2170,7 @@ static MACHINE_CONFIG_START( dragngun )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", ARM, 28000000/4)
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MCFG_CPU_PROGRAM_MAP(dragngun_map)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, deco32_vbl_interrupt)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, vblank_irq_gen)
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MCFG_CPU_ADD("audiocpu", H6280, 32220000/8)
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MCFG_CPU_PROGRAM_MAP(sound_map)
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@ -2159,13 +2178,14 @@ static MACHINE_CONFIG_START( dragngun )
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MCFG_MACHINE_RESET_OVERRIDE(deco32_state,deco32)
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MCFG_EEPROM_SERIAL_93C46_ADD("eeprom")
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MCFG_TIMER_DRIVER_ADD("int_timer", deco32_state, interrupt_gen)
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MCFG_TIMER_DRIVER_ADD("int_timer", deco32_state, raster_irq_gen)
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/* video hardware */
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_SIZE(42*8, 32*8)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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// MCFG_SCREEN_REFRESH_RATE(60)
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// MCFG_SCREEN_SIZE(42*8, 32*8)
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// MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_UPDATE_DRIVER(dragngun_state, screen_update_dragngun)
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//MCFG_SCREEN_PALETTE("palette")
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@ -2238,22 +2258,16 @@ static MACHINE_CONFIG_START( dragngun )
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MACHINE_CONFIG_END
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TIMER_DEVICE_CALLBACK_MEMBER(dragngun_state::lockload_vbl_irq)
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TIMER_DEVICE_CALLBACK_MEMBER(dragngun_state::lockload_vblank_irq_gen)
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{
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int scanline = param;
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if(scanline == 31*8)
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{
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m_irq_source = 0;
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m_maincpu->set_input_line(ARM_IRQ_LINE, ASSERT_LINE);
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}
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update_irq_state(VBLANK_IRQ,true);
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// TODO: this occurs at lightgun Y positions
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if(scanline == 64)
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{
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m_irq_source = 1;
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m_maincpu->set_input_line(ARM_IRQ_LINE, ASSERT_LINE);
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}
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// TODO: this occurs at lightgun Y positions, also needs cleaning up.
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if(scanline == ioport("LIGHT0_Y")->read()/2)
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update_irq_state(LIGHTGUN_IRQ,true);
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}
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@ -2262,7 +2276,7 @@ static MACHINE_CONFIG_START( lockload )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", ARM, 28000000/4)
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MCFG_CPU_PROGRAM_MAP(lockload_map)
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MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", dragngun_state, lockload_vbl_irq, "screen", 0, 1)
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MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", dragngun_state, lockload_vblank_irq_gen, "screen", 0, 1)
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MCFG_CPU_ADD("audiocpu", Z80, 32220000/8)
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MCFG_CPU_PROGRAM_MAP(nslasher_sound)
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@ -2273,14 +2287,14 @@ static MACHINE_CONFIG_START( lockload )
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MCFG_MACHINE_RESET_OVERRIDE(deco32_state,deco32)
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MCFG_EEPROM_SERIAL_93C46_ADD("eeprom")
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MCFG_TIMER_DRIVER_ADD("int_timer", deco32_state, interrupt_gen)
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MCFG_TIMER_DRIVER_ADD("int_timer", deco32_state, raster_irq_gen)
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/* video hardware */
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MCFG_SCREEN_ADD("screen", RASTER)
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// MCFG_SCREEN_REFRESH_RATE(60)
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// MCFG_SCREEN_SIZE(42*8, 32*8+22)
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// MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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MCFG_SCREEN_RAW_PARAMS(28000000/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_UPDATE_DRIVER(dragngun_state, screen_update_dragngun)
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MCFG_BUFFERED_SPRITERAM32_ADD("spriteram")
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@ -2368,14 +2382,15 @@ static MACHINE_CONFIG_START( tattass )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", ARM, 28000000/4) // unconfirmed
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MCFG_CPU_PROGRAM_MAP(tattass_map)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, deco32_vbl_interrupt)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, vblank_irq_gen)
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MCFG_EEPROM_SERIAL_93C76_8BIT_ADD("eeprom")
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_SIZE(42*8, 32*8)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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// MCFG_SCREEN_REFRESH_RATE(60)
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// MCFG_SCREEN_SIZE(42*8, 32*8)
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// MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_UPDATE_DRIVER(deco32_state, screen_update_nslasher)
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MCFG_DEVICE_ADD("tilegen1", DECO16IC, 0)
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@ -2435,7 +2450,7 @@ static MACHINE_CONFIG_START( nslasher )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", ARM, 28322000/4)
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MCFG_CPU_PROGRAM_MAP(nslasher_map)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, deco32_vbl_interrupt)
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MCFG_CPU_VBLANK_INT_DRIVER("screen", deco32_state, vblank_irq_gen)
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MCFG_CPU_ADD("audiocpu", Z80, 32220000/9)
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MCFG_CPU_PROGRAM_MAP(nslasher_sound)
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@ -2446,9 +2461,10 @@ static MACHINE_CONFIG_START( nslasher )
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MCFG_EEPROM_SERIAL_93C46_ADD("eeprom")
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_SIZE(42*8, 32*8)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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// MCFG_SCREEN_REFRESH_RATE(60)
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// MCFG_SCREEN_SIZE(42*8, 32*8)
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// MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz/4,442,0,40*8,274,8,31*8)
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MCFG_SCREEN_UPDATE_DRIVER(deco32_state, screen_update_nslasher)
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MCFG_DEVICE_ADD("tilegen1", DECO16IC, 0)
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@ -3982,7 +3998,7 @@ DRIVER_INIT_MEMBER(deco32_state,captaven)
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save_item(NAME(m_raster_enable));
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save_item(NAME(m_nslasher_sound_irq));
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save_item(NAME(m_irq_source));
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save_item(NAME(m_irq_cause));
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}
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extern void process_dvi_data(device_t *device,uint8_t* dvi_data, int offset, int regionsize);
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@ -4017,7 +4033,7 @@ void dragngun_state::dragngun_init_common()
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save_item(NAME(m_lightgun_port));
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save_item(NAME(m_raster_enable));
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save_item(NAME(m_irq_source));
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save_item(NAME(m_irq_cause));
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// there are DVI headers at 0x000000, 0x580000, 0x800000, 0xB10000, 0xB80000
|
||||
// process_dvi_data(this,memregion("dvi")->base(),0x000000, 0x1000000);
|
||||
@ -4063,7 +4079,7 @@ DRIVER_INIT_MEMBER(dragngun_state,lockload)
|
||||
|
||||
save_item(NAME(m_raster_enable));
|
||||
save_item(NAME(m_nslasher_sound_irq));
|
||||
save_item(NAME(m_irq_source));
|
||||
save_item(NAME(m_irq_cause));
|
||||
|
||||
// ROM[0x3fe3c0/4]=0xe1a00000;// NOP test switch lock
|
||||
// ROM[0x3fe3cc/4]=0xe1a00000;// NOP test switch lock
|
||||
|
||||
@ -80,7 +80,6 @@ public:
|
||||
int m_raster_enable; // captaven, dragongun and lockload
|
||||
timer_device *m_raster_irq_timer; // captaven, dragongun and lockload
|
||||
uint8_t m_nslasher_sound_irq; // nslasher and lockload
|
||||
uint8_t m_irq_source; // captaven, dragongun and lockload
|
||||
int m_tattass_eprom_bit; // tattass
|
||||
int m_lastClock; // tattass
|
||||
char m_buffer[32]; // tattass
|
||||
@ -168,8 +167,8 @@ public:
|
||||
DECLARE_VIDEO_START(fghthist);
|
||||
DECLARE_VIDEO_START(nslasher);
|
||||
|
||||
INTERRUPT_GEN_MEMBER(deco32_vbl_interrupt);
|
||||
TIMER_DEVICE_CALLBACK_MEMBER(interrupt_gen);
|
||||
INTERRUPT_GEN_MEMBER(vblank_irq_gen);
|
||||
TIMER_DEVICE_CALLBACK_MEMBER(raster_irq_gen);
|
||||
|
||||
uint32_t screen_update_captaven(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
|
||||
uint32_t screen_update_fghthist(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
|
||||
@ -187,6 +186,14 @@ public:
|
||||
uint16_t port_b_tattass(int unused);
|
||||
void tattass_sound_cb( address_space &space, uint16_t data, uint16_t mem_mask );
|
||||
void deco32_set_audio_output(uint8_t raw_data);
|
||||
void update_irq_state(uint8_t irq_cause, bool assert_state);
|
||||
uint8_t m_irq_cause;
|
||||
static const uint8_t VBLANK_IRQ = 0x10;
|
||||
static const uint8_t RASTER_IRQ = 0x20;
|
||||
static const uint8_t LIGHTGUN_IRQ = 0x40;
|
||||
static const int vblankout = 8;
|
||||
static const int vblankin = 248;
|
||||
//uint8_t m_irq_source; // captaven, dragongun and lockload
|
||||
|
||||
DECO16IC_BANK_CB_MEMBER(fghthist_bank_callback);
|
||||
DECO16IC_BANK_CB_MEMBER(captaven_bank_callback);
|
||||
@ -218,6 +225,7 @@ public:
|
||||
DECLARE_WRITE32_MEMBER(lightgun_w);
|
||||
DECLARE_WRITE32_MEMBER(sprite_control_w);
|
||||
DECLARE_WRITE32_MEMBER(spriteram_dma_w);
|
||||
DECLARE_WRITE32_MEMBER(gun_irq_ack_w);
|
||||
DECLARE_READ32_MEMBER(unk_video_r);
|
||||
DECLARE_READ32_MEMBER(service_r);
|
||||
DECLARE_READ32_MEMBER(eeprom_r);
|
||||
@ -232,7 +240,7 @@ public:
|
||||
DECLARE_VIDEO_START(lockload);
|
||||
void dragngun_init_common();
|
||||
|
||||
TIMER_DEVICE_CALLBACK_MEMBER(lockload_vbl_irq);
|
||||
TIMER_DEVICE_CALLBACK_MEMBER(lockload_vblank_irq_gen);
|
||||
|
||||
uint32_t screen_update_dragngun(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user