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https://github.com/holub/mame
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ces/cesclass.cpp: break LCD output in two screens, implement bitmap DMA trigger (fix screen tearing)
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angelosa
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134dc5924e
commit
c8777b7d3d
@ -1,25 +1,25 @@
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// license:BSD-3-Clause
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// copyright-holders:Angelo Salese
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/*
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/**************************************************************************************************
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CES Classic wall games
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CES Classic wall games
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driver by Angelo Salese
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Notes:
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- to play Home Run Classic you have to select a pitcher shot and hold the remote button.
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When you release the strobe, batter does the swing.
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Notes:
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- to play Home Run Classic you have to select a pitcher shot and keep pressed the
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wall strobe. When you release the strobe, batter does the swing.
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TODO:
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- artwork;
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- hookup extra DMD sections;
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- extra lamps, cfr. hrclass reference;
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- irq sources & timings are unknown
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\- cfr. ccclass, being really slow on continue screen;
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- sound doesn't play most samples;
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- hookup m68681 + 2x max232;
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- tsclass: runs on a single LCD, needs mods
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- tsclass: throws bad U43 and U44 at POST, should also be two roms not one.
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TODO:
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- custom layout for dual LCDs
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- artwork and lamps position needed to make progresses
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- U43 and U44 bad in Trap Shoot Classic
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- games are incredibly sluggish by now
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- irq sources are unknown
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- sound doesn't play most samples
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- Trap Shoot Classic runs on a single LCD, needs mods
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*/
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**************************************************************************************************/
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#include "emu.h"
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@ -40,8 +40,9 @@ public:
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_oki(*this, "oki")
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, m_vram(*this, "vram")
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, m_workram(*this, "work_ram")
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, m_palette(*this, "palette")
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, m_screen(*this, { "l_lcd", "r_lcd" })
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{ }
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void irq2_ack_w(uint16_t data);
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@ -49,50 +50,80 @@ public:
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void lamps_w(uint16_t data);
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void outputs_w(uint16_t data);
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uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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void cesclassic_palette(palette_device &palette) const;
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void palette_init(palette_device &palette) const;
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void cesclassic(machine_config &config);
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void cesclassic_map(address_map &map);
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void main_map(address_map &map);
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protected:
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virtual void video_start() override;
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virtual void video_reset() override;
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// devices
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private:
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required_device<cpu_device> m_maincpu;
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required_device<okim6295_device> m_oki;
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required_shared_ptr<uint16_t> m_vram;
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required_shared_ptr<uint16_t> m_workram;
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required_device<palette_device> m_palette;
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// driver_device overrides
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virtual void video_start() override;
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required_device_array<screen_device, 2> m_screen;
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bitmap_rgb32 m_lcd_bitmap[2]{};
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bool m_lcd_display = false;
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void dma_trigger_w(offs_t offset, u16 data, u16 mem_mask=~0);
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template <unsigned N> uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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};
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void cesclassic_state::video_start()
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{
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m_screen[0]->register_screen_bitmap(m_lcd_bitmap[0]);
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m_screen[1]->register_screen_bitmap(m_lcd_bitmap[1]);
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}
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uint32_t cesclassic_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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void cesclassic_state::video_reset()
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{
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bitmap.fill(m_palette->black_pen(), cliprect);
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m_lcd_display = false;
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}
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for(int y=0;y<64;y++)
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// selects the start offset from work RAM and triggers
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// TODO: not instant
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void cesclassic_state::dma_trigger_w(offs_t offset, u16 data, u16 mem_mask)
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{
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// all games just pings here with $d
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if (data != 0xd)
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popmessage("dma_trigger_w %04x & %04x", data, mem_mask);
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const u16 *vram = &m_workram[(data & 0xf) << 11];
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for (unsigned N = 0; N < 2; N++)
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{
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for(int x=0;x<16;x++)
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const u32 base_screen = N * 0x80;
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rectangle cliprect = m_screen[N]->visible_area();
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for(int y = cliprect.min_y; y <= cliprect.max_y; y++)
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{
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for(int xi=0;xi<16;xi++)
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for(int x = cliprect.min_x; x <= cliprect.max_x; x+= 16)
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{
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uint8_t color;
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const u32 base_offset = ((x + base_screen) >> 4) + y * 16;
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const u16 cell_high = vram[base_offset];
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const u16 cell_low = vram[(base_offset + 0x400) >> 0];
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for(int xi = 0; xi < 16; xi++)
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{
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const u8 color = BIT(cell_low, 15 - xi) | (BIT(cell_high, 15 - xi) << 1);
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color = (((m_vram[x+y*16+0x400])>>(15-xi)) & 1);
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color |= (((m_vram[x+y*16])>>(15-xi)) & 1)<<1;
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if((x*16+xi)<256 && ((y)+0)<256)
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bitmap.pix(y, x*16+xi) = m_palette->pen(color);
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m_lcd_bitmap[N].pix(y, x + xi) = m_palette->pen(color);
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}
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}
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}
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}
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}
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template <unsigned N> uint32_t cesclassic_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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{
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bitmap.fill(m_palette->black_pen(), cliprect);
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if (m_lcd_display)
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copybitmap(bitmap, m_lcd_bitmap[N], 0, 0, 0, 0, cliprect);
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return 0;
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}
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@ -111,27 +142,29 @@ void cesclassic_state::lamps_w(uint16_t data)
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//popmessage("%04x",data);
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}
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/*
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* -x-- ---- OKI bankswitch
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* --x- ---- enable screen transfers?
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* ---- --x- coin counter
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*/
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void cesclassic_state::outputs_w(uint16_t data)
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{
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/*
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-x-- ---- OKI bankswitch
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--x- ---- probably screen enable
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---- --x- coin counter
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*/
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m_oki->set_rom_bank((data & 0x40) >> 6);
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m_lcd_display = bool(BIT(data, 5));
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machine().bookkeeping().coin_counter_w(0, data & 2);
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if(data & ~0x62)
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logerror("Output: %02x\n",data);
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logerror("Output: %02x\n",data);
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}
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void cesclassic_state::cesclassic_map(address_map &map)
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void cesclassic_state::main_map(address_map &map)
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{
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map(0x000000, 0x0fffff).rom();
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map(0x400000, 0x40cfff).ram();
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map(0x40d000, 0x40ffff).ram().share("vram");
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map(0x410000, 0x410001).portr("VBLANK"); //probably m68681 lies there instead
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map(0x410004, 0x410005).w(FUNC(cesclassic_state::irq3_ack_w));
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map(0x410006, 0x410007).w(FUNC(cesclassic_state::irq2_ack_w));
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map(0x400000, 0x40ffff).ram().share("work_ram");
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// xC5202 FPGA
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map(0x410000, 0x410001).portr("VBLANK");
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map(0x410002, 0x410003).w(FUNC(cesclassic_state::dma_trigger_w));
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map(0x410004, 0x410005).nopr().w(FUNC(cesclassic_state::irq3_ack_w));
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map(0x410006, 0x410007).nopr().w(FUNC(cesclassic_state::irq2_ack_w));
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map(0x480000, 0x481fff).ram().share("nvram"); //8k according to schematics (games doesn't use that much tho)
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map(0x600000, 0x600001).portr("SYSTEM");
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map(0x610000, 0x610001).w(FUNC(cesclassic_state::outputs_w));
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@ -238,33 +271,42 @@ static INPUT_PORTS_START( cesclassic )
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PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
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PORT_START("VBLANK")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("l_lcd")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("l_lcd") // TODO: most likely tied to "DONE" from FPGA
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INPUT_PORTS_END
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void cesclassic_state::cesclassic_palette(palette_device &palette) const
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void cesclassic_state::palette_init(palette_device &palette) const
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{
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for (int i = 0; i < 4; i++)
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palette.set_pen_color(i, pal2bit(i), 0, 0);
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}
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void cesclassic_state::cesclassic(machine_config &config)
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{
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M68000(config, m_maincpu, 24000000/2);
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m_maincpu->set_addrmap(AS_PROGRAM, &cesclassic_state::cesclassic_map);
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m_maincpu->set_addrmap(AS_PROGRAM, &cesclassic_state::main_map);
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m_maincpu->set_vblank_int("l_lcd", FUNC(cesclassic_state::irq2_line_assert)); // TODO: unknown sources
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m_maincpu->set_periodic_int(FUNC(cesclassic_state::irq3_line_assert), attotime::from_hz(60*8));
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NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
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/* video hardware */
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screen_device &screen(SCREEN(config, "l_lcd", SCREEN_TYPE_LCD));
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screen.set_refresh_hz(60);
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screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
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screen.set_screen_update(FUNC(cesclassic_state::screen_update));
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screen.set_size(8*16*2, 8*8+3*8);
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screen.set_visarea(0*8, 8*16*2-1, 0*8, 8*8-1);
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screen_device &l_screen(SCREEN(config, "l_lcd", SCREEN_TYPE_LCD));
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l_screen.set_refresh_hz(60);
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l_screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
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l_screen.set_screen_update(FUNC(cesclassic_state::screen_update<0>));
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l_screen.set_size(256+128, 64+24);
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l_screen.set_visarea(0, 128 - 1, 0, 64 - 1);
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PALETTE(config, m_palette, FUNC(cesclassic_state::cesclassic_palette), 4);
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screen_device &r_screen(SCREEN(config, "r_lcd", SCREEN_TYPE_LCD));
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r_screen.set_refresh_hz(60);
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r_screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
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r_screen.set_screen_update(FUNC(cesclassic_state::screen_update<1>));
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r_screen.set_size(256+128, 64+24);
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r_screen.set_visarea(0, 128 - 1, 0, 64 - 1);
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PALETTE(config, m_palette, FUNC(cesclassic_state::palette_init), 4);
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SPEAKER(config, "mono").front_center();
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OKIM6295(config, m_oki, 24000000/16, okim6295_device::PIN7_LOW).add_route(ALL_OUTPUTS, "mono", 0.5);
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