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clshroad.cpp: various fixes (#8400)
* clshroad.cpp: Add tilemap color bank, fix lightning flashing and color cycling for Fire Battle; clshroad.cpp: Hand-tuned all clock frequencies for clshroad and halved vblank irq rate, syncing video and sound timings in logical sense; * wiping.cpp, wiping.cpp: Convert to Xtal and add tentative screen raw params; * audio/wiping.cpp: Make custom audio to actually not divide internally by 2; * clshroad.cpp: minor realign documentation
This commit is contained in:
Angelo Salese
GitHub
parent
3da6dd410f
commit
8385a3dc85
@ -2,10 +2,16 @@
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// copyright-holders:Allard van der Bas
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/***************************************************************************
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Wiping sound driver (quick hack of the Namco sound driver)
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Wiping sound driver
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Nichibutsu / Woodplace Inc. custom part?
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used by wiping.cpp and clshroad.cpp
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TODO:
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- Identify actual part, sound device was originally based off
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Namco customs (on which involvement seems pretty thin here);
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***************************************************************************/
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#include "emu.h"
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@ -37,10 +43,10 @@ void wiping_sound_device::device_start()
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wp_sound_channel *voice;
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/* get stream channels */
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m_stream = stream_alloc(0, 1, clock()/2);
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m_stream = stream_alloc(0, 1, clock()); // 48000 Hz
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/* allocate a buffer to mix into - 1 second's worth should be more than enough */
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m_mixer_buffer.resize(clock()/2);
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m_mixer_buffer.resize(clock());
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/* extract globals from the interface */
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m_num_voices = 8;
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@ -1,6 +1,6 @@
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// license:BSD-3-Clause
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// copyright-holders:Luca Elia
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/***************************************************************************
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/******************************************************************************
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-= Clash Road =-
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@ -12,26 +12,33 @@ Video Chips : ?
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Sound CPU : Z80A (LH0080A)
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Sound Chips : Custom (NAMCO)
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Sound Chips : Custom (Nichibutsu?)
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XTAL : 18.432 MHz
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TODO:
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- few unused video registers (2 and 3);
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- clshroad: erratic gameplay speed;
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- clshroad: erratic gameplay/sound speed.
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Being pretty logical that CPUs runs at master clock / 6 then we also need to
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halve the vblank irq rate so that opponents won't pop up in the middle of the
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screen. Main CPU would also overrun the sound CPU way too much otherwise.
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We also need to hand tune the sound frequencies compared to the other games
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so that it won't cut off BGMs abruptly during playback.
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TL;DR needs verification of all clocks with a PCB;
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- firebatl: video (https://tmblr.co/ZgJvzv2E2C_z-) shows transparency for the
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text layer is not correctly emulated, fixed by initializing VRAM to 0xf0? (that layer seems unused by this game);
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- firebatl: bad sprite colors;
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text layer is not correctly emulated, fixed by initializing VRAM to 0xf0?
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(that layer seems unused by this game);
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- firebatl: bad sprite colors, most notably player ship (should be way darker);
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- firebatl: remove ROM patch;
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- firebatl: reads $6000-$6002 and $6100 at POST, and in the range $6100-$61ff before every start
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of gameplay/after player dies.
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- firebatl: reads $6000-$6002 and $6100 at POST, and in the range $6100-$61ff
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before every start of gameplay/after player dies.
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Currently 0-filled in ROM loading:
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- $6100 is actually OR-ed with the coinage work RAM buffer setting at $8022;
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- $6124 is shifted right once at PC=0x5df and stored to $82e6, which is later checked at PC=0x187 and must
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be $01 otherwise game goes into an infinite loop after dying (without ROM patch);
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- $6124 is shifted right once at PC=0x5df and stored to $82e6, which is later
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checked at PC=0x187 and must be $01 otherwise game goes into an infinite
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loop after dying (without ROM patch);
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- (more ...)
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***************************************************************************/
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*******************************************************************************/
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#include "emu.h"
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#include "includes/clshroad.h"
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@ -39,11 +46,16 @@ TODO:
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#include "cpu/z80/z80.h"
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#include "machine/74259.h"
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#include "screen.h"
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#include "speaker.h"
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/* unknown divider, assume /5 */
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#define MAIN_CLOCK XTAL(18'432'000)/5
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#define MASTER_CLOCK XTAL(18'432'000)
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void clshroad_state::machine_start()
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{
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save_item(NAME(m_main_irq_mask));
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save_item(NAME(m_sound_irq_mask));
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save_item(NAME(m_color_bank));
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}
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void clshroad_state::machine_reset()
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{
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@ -87,7 +99,9 @@ void clshroad_state::clshroad_map(address_map &map)
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map(0xa000, 0xa007).w("mainlatch", FUNC(ls259_device::write_d0));
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map(0xa100, 0xa107).r(FUNC(clshroad_state::input_r));
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map(0xa800, 0xafff).ram().w(FUNC(clshroad_state::vram_1_w)).share("vram_1"); // Layer 1
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map(0xb000, 0xb003).writeonly().share("vregs"); // Scroll
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map(0xb000, 0xb001).writeonly().share("vregs"); // Scroll
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map(0xb002, 0xb002).w(FUNC(clshroad_state::color_bank_w));
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map(0xb003, 0xb003).w(FUNC(clshroad_state::video_unk_w));
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map(0xc000, 0xc7ff).ram().w(FUNC(clshroad_state::vram_0_w)).share("vram_0"); // Layer 0
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}
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@ -110,7 +124,7 @@ static INPUT_PORTS_START( clshroad )
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
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PORT_START("P2")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_COCKTAIL
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@ -257,14 +271,14 @@ static const gfx_layout layout_16x16x4 =
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static GFXDECODE_START( gfx_firebatl )
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GFXDECODE_ENTRY( "gfx1", 0, layout_16x16x4, 0, 16 ) // [0] Sprites
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GFXDECODE_ENTRY( "gfx2", 0, layout_16x16x4, 16, 1 ) // [1] Layer 0
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GFXDECODE_ENTRY( "gfx2", 0, layout_16x16x4, 0, 16 ) // [1] Layer 0
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GFXDECODE_ENTRY( "gfx3", 0, layout_8x8x2, 512, 64 ) // [2] Layer 1
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GFXDECODE_END
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static GFXDECODE_START( gfx_clshroad )
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GFXDECODE_ENTRY( "gfx1", 0, layout_16x16x4, 0, 16 ) // [0] Sprites
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GFXDECODE_ENTRY( "gfx2", 0, layout_16x16x4, 0x90, 1 ) // [1] Layer 0
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GFXDECODE_ENTRY( "gfx3", 0, layout_8x8x4, 0, 16 ) // [2] Layer 1
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GFXDECODE_ENTRY( "gfx1", 0, layout_16x16x4, 0, 16 ) // [0] Sprites
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GFXDECODE_ENTRY( "gfx2", 0, layout_16x16x4, 0, 16 ) // [1] Layer 0
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GFXDECODE_ENTRY( "gfx3", 0, layout_8x8x4, 0, 16 ) // [2] Layer 1
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GFXDECODE_END
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@ -275,6 +289,17 @@ INTERRUPT_GEN_MEMBER(clshroad_state::vblank_irq)
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device.execute().set_input_line(0, HOLD_LINE);
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}
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INTERRUPT_GEN_MEMBER(clshroad_state::half_vblank_irq)
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{
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// without this then clshroad runs too fast & BGMs stops playing exactly halfway thru.
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// it also otherwise make opponents to pop up in the middle of the screen
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if (m_screen->frame_number() & 1)
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return;
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if(m_main_irq_mask)
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device.execute().set_input_line(0, HOLD_LINE);
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}
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INTERRUPT_GEN_MEMBER(clshroad_state::sound_timer_irq)
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{
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if(m_sound_irq_mask)
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@ -284,13 +309,15 @@ INTERRUPT_GEN_MEMBER(clshroad_state::sound_timer_irq)
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void clshroad_state::firebatl(machine_config &config)
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{
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/* basic machine hardware */
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Z80(config, m_maincpu, MAIN_CLOCK); /* ? */
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Z80(config, m_maincpu, MASTER_CLOCK / 6); // μPD780C running at 3.072 MHz? Overruns max frequency of 2.5 MHz ...
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m_maincpu->set_addrmap(AS_PROGRAM, &clshroad_state::clshroad_map);
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m_maincpu->set_vblank_int("screen", FUNC(clshroad_state::vblank_irq));
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Z80(config, m_audiocpu, MAIN_CLOCK); /* ? */
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Z80(config, m_audiocpu, MASTER_CLOCK / 6); // μPD780C running at 3.072 MHz? Overruns max frequency of 2.5 MHz ...
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m_audiocpu->set_addrmap(AS_PROGRAM, &clshroad_state::clshroad_sound_map);
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m_audiocpu->set_periodic_int(FUNC(clshroad_state::sound_timer_irq), attotime::from_hz(120)); /* periodic interrupt, don't know about the frequency */
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m_audiocpu->set_periodic_int(FUNC(clshroad_state::sound_timer_irq), attotime::from_hz(120)); // periodic interrupt, exact frequency unknown
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config.set_maximum_quantum(attotime::from_hz(MASTER_CLOCK / 6 / 512)); // 6000 Hz
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ls259_device &mainlatch(LS259(config, "mainlatch"));
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mainlatch.q_out_cb<0>().set_inputline(m_audiocpu, INPUT_LINE_RESET).invert();
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@ -299,13 +326,10 @@ void clshroad_state::firebatl(machine_config &config)
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mainlatch.q_out_cb<4>().set(FUNC(clshroad_state::flipscreen_w));
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/* video hardware */
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_refresh_hz(60);
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screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
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screen.set_size(0x120, 0x100);
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screen.set_visarea(0, 0x120-1, 0x0+16, 0x100-16-1);
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screen.set_screen_update(FUNC(clshroad_state::screen_update));
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screen.set_palette(m_palette);
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SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
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m_screen->set_raw(MASTER_CLOCK / 3, 384, 0, 288, 264, 16, 240); // unknown, single XTAL on PCB & 288x224 suggests 60.606060 Hz like Galaxian HW
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m_screen->set_screen_update(FUNC(clshroad_state::screen_update));
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m_screen->set_palette(m_palette);
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GFXDECODE(config, m_gfxdecode, m_palette, gfx_firebatl);
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PALETTE(config, m_palette, FUNC(clshroad_state::firebatl_palette), 512+64*4, 256);
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@ -315,20 +339,22 @@ void clshroad_state::firebatl(machine_config &config)
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/* sound hardware */
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SPEAKER(config, "mono").front_center();
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WIPING_CUSTOM(config, "custom", 96000).add_route(ALL_OUTPUTS, "mono", 1.0);
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WIPING_CUSTOM(config, "custom", 96000 / 2).add_route(ALL_OUTPUTS, "mono", 1.0); // 48000 Hz?
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}
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void clshroad_state::clshroad(machine_config &config)
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{
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/* basic machine hardware */
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Z80(config, m_maincpu, MAIN_CLOCK); /* ? real speed unknown. 3MHz is too low and causes problems */
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Z80(config, m_maincpu, MASTER_CLOCK / 6); // LH0080A running at 3.072 MHz? /5 is too fast, /6 matches wiping.cpp
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m_maincpu->set_addrmap(AS_PROGRAM, &clshroad_state::clshroad_map);
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m_maincpu->set_vblank_int("screen", FUNC(clshroad_state::vblank_irq));
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m_maincpu->set_vblank_int("screen", FUNC(clshroad_state::half_vblank_irq));
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Z80(config, m_audiocpu, MAIN_CLOCK); /* ? */
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Z80(config, m_audiocpu, MASTER_CLOCK / 6); // LH0080A running at 3.072 MHz?
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m_audiocpu->set_addrmap(AS_PROGRAM, &clshroad_state::clshroad_sound_map);
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//m_audiocpu->set_vblank_int("screen", FUNC(clshroad_state::irq0_line_hold)); /* IRQ, no NMI */
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m_audiocpu->set_periodic_int(FUNC(clshroad_state::sound_timer_irq), attotime::from_hz(60)); /* periodic interrupt, don't know about the frequency */
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// TODO: by logic this should be MASTER_CLOCK / 3 / 65536 = 93.75 Hz, but it quite don't work right.
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m_audiocpu->set_periodic_int(FUNC(clshroad_state::sound_timer_irq), attotime::from_hz(82.75)); // periodic interrupt, exact frequency unknown
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config.set_maximum_quantum(attotime::from_hz(MASTER_CLOCK / 6 / 512)); // 6000 Hz
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ls259_device &mainlatch(LS259(config, "mainlatch"));
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mainlatch.q_out_cb<0>().set_nop(); // never writes here?
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@ -337,13 +363,10 @@ void clshroad_state::clshroad(machine_config &config)
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mainlatch.q_out_cb<4>().set(FUNC(clshroad_state::flipscreen_w));
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/* video hardware */
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_refresh_hz(60);
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screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
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screen.set_size(0x120, 0x100);
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screen.set_visarea(0, 0x120-1, 0x0+16, 0x100-16-1);
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screen.set_screen_update(FUNC(clshroad_state::screen_update));
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screen.set_palette(m_palette);
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SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
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m_screen->set_raw(MASTER_CLOCK / 3, 384, 0, 288, 264, 16, 240); // unknown, single XTAL on PCB & 288x224 suggests 60.606060 Hz like Galaxian HW
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m_screen->set_screen_update(FUNC(clshroad_state::screen_update));
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m_screen->set_palette(m_palette);
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GFXDECODE(config, m_gfxdecode, m_palette, gfx_clshroad);
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PALETTE(config, m_palette, FUNC(clshroad_state::clshroad_palette), 256);
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@ -353,7 +376,7 @@ void clshroad_state::clshroad(machine_config &config)
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/* sound hardware */
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SPEAKER(config, "mono").front_center();
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WIPING_CUSTOM(config, "custom", 96000).add_route(ALL_OUTPUTS, "mono", 1.0);
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WIPING_CUSTOM(config, "custom", MASTER_CLOCK / 3 / 256).add_route(ALL_OUTPUTS, "mono", 1.0); // 24000 Hz?
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}
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@ -572,7 +595,7 @@ void clshroad_state::init_firebatl()
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ROM[0x6124] = 0x02;
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}
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GAME( 1984, firebatl, 0, firebatl, firebatl, clshroad_state, init_firebatl, ROT90, "Woodplace Inc. (Taito license)", "Fire Battle", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS | MACHINE_UNEMULATED_PROTECTION )
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GAME( 1986, clshroad, 0, clshroad, clshroad, clshroad_state, empty_init, ROT0, "Woodplace Inc.", "Clash-Road", MACHINE_SUPPORTS_SAVE )
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GAME( 1986, clshroads, clshroad, clshroad, clshroad, clshroad_state, empty_init, ROT0, "Woodplace Inc. (Status Game Corp. license)", "Clash-Road (Status license)", MACHINE_SUPPORTS_SAVE )
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GAME( 1986, clshroadd, clshroad, clshroad, clshroad, clshroad_state, empty_init, ROT0, "Woodplace Inc. (Data East license)", "Clash-Road (Data East license)", MACHINE_SUPPORTS_SAVE )
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GAME( 1984, firebatl, 0, firebatl, firebatl, clshroad_state, init_firebatl, ROT90, "Woodplace Inc. (Taito license)", "Fire Battle", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_COLORS | MACHINE_UNEMULATED_PROTECTION ) // developed by Graphic Research
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GAME( 1986, clshroad, 0, clshroad, clshroad, clshroad_state, empty_init, ROT0, "Woodplace Inc.", "Clash-Road", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_SOUND | MACHINE_IMPERFECT_TIMING )
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GAME( 1986, clshroads, clshroad, clshroad, clshroad, clshroad_state, empty_init, ROT0, "Woodplace Inc. (Status Game Corp. license)", "Clash-Road (Status license)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_SOUND | MACHINE_IMPERFECT_TIMING )
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GAME( 1986, clshroadd, clshroad, clshroad, clshroad, clshroad_state, empty_init, ROT0, "Woodplace Inc. (Data East license)", "Clash-Road (Data East license)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_SOUND | MACHINE_IMPERFECT_TIMING )
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@ -9,6 +9,10 @@
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Allard van der Bas (allard@mindless.com)
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1 x Z80 CPU main game, 1 x Z80 with ???? sound hardware.
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Given the similarities with clshroad.cpp this was probably developed by
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Masao Suzuki, who later left Nichibutsu to form Woodplace Inc.
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----------------------------------------------------------------------------
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Main processor :
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@ -45,6 +49,7 @@ dip: 6.7 7.7
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#include "screen.h"
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#include "speaker.h"
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#define MASTER_CLOCK XTAL(18'432'000)
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void wiping_state::machine_start()
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{
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@ -287,14 +292,16 @@ INTERRUPT_GEN_MEMBER(wiping_state::sound_timer_irq)
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void wiping_state::wiping(machine_config &config)
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{
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/* basic machine hardware */
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Z80(config, m_maincpu, 18432000/6); /* 3.072 MHz */
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Z80(config, m_maincpu, MASTER_CLOCK / 6); /* 3.072 MHz */
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m_maincpu->set_addrmap(AS_PROGRAM, &wiping_state::main_map);
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m_maincpu->set_vblank_int("screen", FUNC(wiping_state::vblank_irq));
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Z80(config, m_audiocpu, 18432000/6); /* 3.072 MHz */
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Z80(config, m_audiocpu, MASTER_CLOCK / 6); /* 3.072 MHz */
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m_audiocpu->set_addrmap(AS_PROGRAM, &wiping_state::sound_map);
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m_audiocpu->set_periodic_int(FUNC(wiping_state::sound_timer_irq), attotime::from_hz(120)); /* periodic interrupt, don't know about the frequency */
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config.set_maximum_quantum(attotime::from_hz(MASTER_CLOCK / 6 / 512)); // 6000 Hz
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ls259_device &mainlatch(LS259(config, "mainlatch")); // 5A
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mainlatch.q_out_cb<0>().set(FUNC(wiping_state::main_irq_mask_w)); // INT1
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mainlatch.q_out_cb<1>().set(FUNC(wiping_state::sound_irq_mask_w)); // INT2
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@ -305,10 +312,7 @@ void wiping_state::wiping(machine_config &config)
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/* video hardware */
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_refresh_hz(60);
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screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
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screen.set_size(36*8, 28*8);
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screen.set_visarea(0*8, 36*8-1, 0*8, 28*8-1);
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screen.set_raw(MASTER_CLOCK / 3, 384, 0, 288, 264, 0, 224); // unknown, single XTAL on PCB & 288x224 suggests 60.606060 Hz like Galaxian HW
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screen.set_screen_update(FUNC(wiping_state::screen_update));
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screen.set_palette(m_palette);
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||||
|
||||
@ -318,7 +322,7 @@ void wiping_state::wiping(machine_config &config)
|
||||
/* sound hardware */
|
||||
SPEAKER(config, "mono").front_center();
|
||||
|
||||
WIPING_CUSTOM(config, "wiping", 96000).add_route(ALL_OUTPUTS, "mono", 1.0);
|
||||
WIPING_CUSTOM(config, "wiping", 96000 / 2).add_route(ALL_OUTPUTS, "mono", 1.0); // 48000 Hz?
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -6,25 +6,28 @@
|
||||
#pragma once
|
||||
|
||||
#include "emupal.h"
|
||||
#include "screen.h"
|
||||
#include "tilemap.h"
|
||||
|
||||
class clshroad_state : public driver_device
|
||||
{
|
||||
public:
|
||||
clshroad_state(const machine_config &mconfig, device_type type, const char *tag) :
|
||||
driver_device(mconfig, type, tag),
|
||||
m_maincpu(*this, "maincpu"),
|
||||
m_audiocpu(*this, "audiocpu"),
|
||||
m_gfxdecode(*this, "gfxdecode"),
|
||||
m_palette(*this, "palette"),
|
||||
m_spriteram(*this, "spriteram"),
|
||||
m_vram_0(*this, "vram_0"),
|
||||
m_vram_1(*this, "vram_1"),
|
||||
m_vregs(*this, "vregs")
|
||||
clshroad_state(const machine_config &mconfig, device_type type, const char *tag)
|
||||
: driver_device(mconfig, type, tag)
|
||||
, m_maincpu(*this, "maincpu")
|
||||
, m_audiocpu(*this, "audiocpu")
|
||||
, m_screen(*this, "screen")
|
||||
, m_gfxdecode(*this, "gfxdecode")
|
||||
, m_palette(*this, "palette")
|
||||
, m_spriteram(*this, "spriteram")
|
||||
, m_vram_0(*this, "vram_0")
|
||||
, m_vram_1(*this, "vram_1")
|
||||
, m_vregs(*this, "vregs")
|
||||
{ }
|
||||
|
||||
required_device<cpu_device> m_maincpu;
|
||||
required_device<cpu_device> m_audiocpu;
|
||||
required_device<screen_device> m_screen;
|
||||
required_device<gfxdecode_device> m_gfxdecode;
|
||||
required_device<palette_device> m_palette;
|
||||
|
||||
@ -33,8 +36,10 @@ public:
|
||||
required_shared_ptr<uint8_t> m_vram_1;
|
||||
required_shared_ptr<uint8_t> m_vregs;
|
||||
|
||||
uint8_t m_main_irq_mask;
|
||||
uint8_t m_sound_irq_mask;
|
||||
u8 m_main_irq_mask;
|
||||
u8 m_sound_irq_mask;
|
||||
u8 m_color_bank;
|
||||
u8 m_video_unk;
|
||||
|
||||
tilemap_t *m_tilemap_0a;
|
||||
tilemap_t *m_tilemap_0b;
|
||||
@ -54,15 +59,19 @@ public:
|
||||
TILE_GET_INFO_MEMBER(get_tile_info_1);
|
||||
|
||||
void init_firebatl();
|
||||
virtual void machine_start() override;
|
||||
virtual void machine_reset() override;
|
||||
DECLARE_VIDEO_START(firebatl);
|
||||
void firebatl_palette(palette_device &palette) const;
|
||||
DECLARE_VIDEO_START(clshroad);
|
||||
void clshroad_palette(palette_device &palette) const;
|
||||
void color_bank_w(offs_t offset, u8 data);
|
||||
void video_unk_w(offs_t offset, u8 data);
|
||||
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
|
||||
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
|
||||
|
||||
INTERRUPT_GEN_MEMBER(vblank_irq);
|
||||
INTERRUPT_GEN_MEMBER(half_vblank_irq);
|
||||
INTERRUPT_GEN_MEMBER(sound_timer_irq);
|
||||
void firebatl(machine_config &config);
|
||||
void clshroad(machine_config &config);
|
||||
|
||||
@ -109,10 +109,12 @@ TILE_GET_INFO_MEMBER(clshroad_state::get_tile_info_0a)
|
||||
tile_index = (tile_index & 0x1f) + (tile_index & ~0x1f)*2;
|
||||
code = m_vram_0[ tile_index * 2 + 0x40 ];
|
||||
// color = m_vram_0[ tile_index * 2 + 0x41 ];
|
||||
tileinfo.set(1,
|
||||
code,
|
||||
0,
|
||||
0);
|
||||
tileinfo.set(
|
||||
1,
|
||||
code,
|
||||
m_color_bank,
|
||||
0
|
||||
);
|
||||
}
|
||||
|
||||
TILE_GET_INFO_MEMBER(clshroad_state::get_tile_info_0b)
|
||||
@ -121,10 +123,12 @@ TILE_GET_INFO_MEMBER(clshroad_state::get_tile_info_0b)
|
||||
tile_index = (tile_index & 0x1f) + (tile_index & ~0x1f)*2;
|
||||
code = m_vram_0[ tile_index * 2 + 0x00 ];
|
||||
// color = m_vram_0[ tile_index * 2 + 0x01 ];
|
||||
tileinfo.set(1,
|
||||
code,
|
||||
0,
|
||||
0);
|
||||
tileinfo.set(
|
||||
1,
|
||||
code,
|
||||
m_color_bank,
|
||||
0
|
||||
);
|
||||
}
|
||||
|
||||
void clshroad_state::vram_0_w(offs_t offset, uint8_t data)
|
||||
@ -198,6 +202,26 @@ void clshroad_state::vram_1_w(offs_t offset, uint8_t data)
|
||||
m_tilemap_1->mark_tile_dirty(offset % 0x400);
|
||||
}
|
||||
|
||||
void clshroad_state::color_bank_w(offs_t offset, u8 data)
|
||||
{
|
||||
// - Clash Road: always 9 during gameplay and 0 when title screen displays
|
||||
// (further disabling it out)
|
||||
// - Fire Battle: variable depending on what happens on screen
|
||||
// (makes background to flash when lightning occurs, has additional color cycling effects)
|
||||
m_color_bank = data & 0xf;
|
||||
m_tilemap_0a->mark_all_dirty();
|
||||
m_tilemap_0b->mark_all_dirty();
|
||||
if (data & 0xf0)
|
||||
logerror("%s: unknown vreg [2] write %02x\n", machine().describe_context(), data);
|
||||
}
|
||||
|
||||
void clshroad_state::video_unk_w(offs_t offset, u8 data)
|
||||
{
|
||||
// Clash Road: inited to 0 at POST, never touched anywhere else
|
||||
// Fire Battle: always bit 7 held, normally 0x80,
|
||||
// increments bits 0-3 from 0x80 to 0x8f when lightning is about to strike and decrements back to 0x80
|
||||
// after section has been passed, color gain control? sprite color bank (on unmapped color proms)?
|
||||
}
|
||||
|
||||
VIDEO_START_MEMBER(clshroad_state,firebatl)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user