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author angelosa <lordkale4@gmail.com>2024-07-23 20:19:17 +0200
committer angelosa <lordkale4@gmail.com>2024-07-23 20:20:22 +0200
commitc8777b7d3dcd67b99bd52a0aabd985376acfb7f1 (patch)
treee58dc3705e5b8c4396a7da7288db9badc78e8f97 /src
parent134dc5924ecc254e344433e039226c231f2abb53 (diff)
ces/cesclass.cpp: break LCD output in two screens, implement bitmap DMA trigger (fix screen tearing)
Diffstat (limited to 'src')
-rw-r--r--src/mame/ces/cesclass.cpp162
1 files changed, 102 insertions, 60 deletions
diff --git a/src/mame/ces/cesclass.cpp b/src/mame/ces/cesclass.cpp
index 286061a47c9..4139d4865e0 100644
--- a/src/mame/ces/cesclass.cpp
+++ b/src/mame/ces/cesclass.cpp
@@ -1,25 +1,25 @@
// license:BSD-3-Clause
// copyright-holders:Angelo Salese
-/*
-
- CES Classic wall games
+/**************************************************************************************************
- driver by Angelo Salese
+CES Classic wall games
- Notes:
- - to play Home Run Classic you have to select a pitcher shot and keep pressed the
- wall strobe. When you release the strobe, batter does the swing.
+Notes:
+- to play Home Run Classic you have to select a pitcher shot and hold the remote button.
+ When you release the strobe, batter does the swing.
- TODO:
- - custom layout for dual LCDs
- - artwork and lamps position needed to make progresses
- - U43 and U44 bad in Trap Shoot Classic
- - games are incredibly sluggish by now
- - irq sources are unknown
- - sound doesn't play most samples
- - Trap Shoot Classic runs on a single LCD, needs mods
+TODO:
+- artwork;
+- hookup extra DMD sections;
+- extra lamps, cfr. hrclass reference;
+- irq sources & timings are unknown
+\- cfr. ccclass, being really slow on continue screen;
+- sound doesn't play most samples;
+- hookup m68681 + 2x max232;
+- tsclass: runs on a single LCD, needs mods
+- tsclass: throws bad U43 and U44 at POST, should also be two roms not one.
-*/
+**************************************************************************************************/
#include "emu.h"
@@ -40,8 +40,9 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_oki(*this, "oki")
- , m_vram(*this, "vram")
+ , m_workram(*this, "work_ram")
, m_palette(*this, "palette")
+ , m_screen(*this, { "l_lcd", "r_lcd" })
{ }
void irq2_ack_w(uint16_t data);
@@ -49,50 +50,80 @@ public:
void lamps_w(uint16_t data);
void outputs_w(uint16_t data);
-
- uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
- void cesclassic_palette(palette_device &palette) const;
+ void palette_init(palette_device &palette) const;
void cesclassic(machine_config &config);
- void cesclassic_map(address_map &map);
+ void main_map(address_map &map);
protected:
+ virtual void video_start() override;
+ virtual void video_reset() override;
- // devices
+private:
required_device<cpu_device> m_maincpu;
required_device<okim6295_device> m_oki;
- required_shared_ptr<uint16_t> m_vram;
+ required_shared_ptr<uint16_t> m_workram;
required_device<palette_device> m_palette;
- // driver_device overrides
- virtual void video_start() override;
+ required_device_array<screen_device, 2> m_screen;
+
+ bitmap_rgb32 m_lcd_bitmap[2]{};
+ bool m_lcd_display = false;
+ void dma_trigger_w(offs_t offset, u16 data, u16 mem_mask=~0);
+
+ template <unsigned N> uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
};
void cesclassic_state::video_start()
{
+ m_screen[0]->register_screen_bitmap(m_lcd_bitmap[0]);
+ m_screen[1]->register_screen_bitmap(m_lcd_bitmap[1]);
}
-uint32_t cesclassic_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+void cesclassic_state::video_reset()
{
- bitmap.fill(m_palette->black_pen(), cliprect);
+ m_lcd_display = false;
+}
+
+// selects the start offset from work RAM and triggers
+// TODO: not instant
+void cesclassic_state::dma_trigger_w(offs_t offset, u16 data, u16 mem_mask)
+{
+ // all games just pings here with $d
+ if (data != 0xd)
+ popmessage("dma_trigger_w %04x & %04x", data, mem_mask);
- for(int y=0;y<64;y++)
+ const u16 *vram = &m_workram[(data & 0xf) << 11];
+
+ for (unsigned N = 0; N < 2; N++)
{
- for(int x=0;x<16;x++)
- {
- for(int xi=0;xi<16;xi++)
- {
- uint8_t color;
+ const u32 base_screen = N * 0x80;
- color = (((m_vram[x+y*16+0x400])>>(15-xi)) & 1);
- color |= (((m_vram[x+y*16])>>(15-xi)) & 1)<<1;
+ rectangle cliprect = m_screen[N]->visible_area();
- if((x*16+xi)<256 && ((y)+0)<256)
- bitmap.pix(y, x*16+xi) = m_palette->pen(color);
+ for(int y = cliprect.min_y; y <= cliprect.max_y; y++)
+ {
+ for(int x = cliprect.min_x; x <= cliprect.max_x; x+= 16)
+ {
+ const u32 base_offset = ((x + base_screen) >> 4) + y * 16;
+ const u16 cell_high = vram[base_offset];
+ const u16 cell_low = vram[(base_offset + 0x400) >> 0];
+ for(int xi = 0; xi < 16; xi++)
+ {
+ const u8 color = BIT(cell_low, 15 - xi) | (BIT(cell_high, 15 - xi) << 1);
+
+ m_lcd_bitmap[N].pix(y, x + xi) = m_palette->pen(color);
+ }
}
}
}
+}
+template <unsigned N> uint32_t cesclassic_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+ bitmap.fill(m_palette->black_pen(), cliprect);
+ if (m_lcd_display)
+ copybitmap(bitmap, m_lcd_bitmap[N], 0, 0, 0, 0, cliprect);
return 0;
}
@@ -111,27 +142,29 @@ void cesclassic_state::lamps_w(uint16_t data)
//popmessage("%04x",data);
}
+/*
+ * -x-- ---- OKI bankswitch
+ * --x- ---- enable screen transfers?
+ * ---- --x- coin counter
+ */
void cesclassic_state::outputs_w(uint16_t data)
{
- /*
- -x-- ---- OKI bankswitch
- --x- ---- probably screen enable
- ---- --x- coin counter
- */
m_oki->set_rom_bank((data & 0x40) >> 6);
+ m_lcd_display = bool(BIT(data, 5));
machine().bookkeeping().coin_counter_w(0, data & 2);
if(data & ~0x62)
- logerror("Output: %02x\n",data);
+ logerror("Output: %02x\n",data);
}
-void cesclassic_state::cesclassic_map(address_map &map)
+void cesclassic_state::main_map(address_map &map)
{
map(0x000000, 0x0fffff).rom();
- map(0x400000, 0x40cfff).ram();
- map(0x40d000, 0x40ffff).ram().share("vram");
- map(0x410000, 0x410001).portr("VBLANK"); //probably m68681 lies there instead
- map(0x410004, 0x410005).w(FUNC(cesclassic_state::irq3_ack_w));
- map(0x410006, 0x410007).w(FUNC(cesclassic_state::irq2_ack_w));
+ map(0x400000, 0x40ffff).ram().share("work_ram");
+ // xC5202 FPGA
+ map(0x410000, 0x410001).portr("VBLANK");
+ map(0x410002, 0x410003).w(FUNC(cesclassic_state::dma_trigger_w));
+ map(0x410004, 0x410005).nopr().w(FUNC(cesclassic_state::irq3_ack_w));
+ map(0x410006, 0x410007).nopr().w(FUNC(cesclassic_state::irq2_ack_w));
map(0x480000, 0x481fff).ram().share("nvram"); //8k according to schematics (games doesn't use that much tho)
map(0x600000, 0x600001).portr("SYSTEM");
map(0x610000, 0x610001).w(FUNC(cesclassic_state::outputs_w));
@@ -238,33 +271,42 @@ static INPUT_PORTS_START( cesclassic )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
PORT_START("VBLANK")
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("l_lcd")
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("l_lcd") // TODO: most likely tied to "DONE" from FPGA
INPUT_PORTS_END
-void cesclassic_state::cesclassic_palette(palette_device &palette) const
+void cesclassic_state::palette_init(palette_device &palette) const
{
for (int i = 0; i < 4; i++)
palette.set_pen_color(i, pal2bit(i), 0, 0);
}
+
+
void cesclassic_state::cesclassic(machine_config &config)
{
M68000(config, m_maincpu, 24000000/2);
- m_maincpu->set_addrmap(AS_PROGRAM, &cesclassic_state::cesclassic_map);
+ m_maincpu->set_addrmap(AS_PROGRAM, &cesclassic_state::main_map);
m_maincpu->set_vblank_int("l_lcd", FUNC(cesclassic_state::irq2_line_assert)); // TODO: unknown sources
m_maincpu->set_periodic_int(FUNC(cesclassic_state::irq3_line_assert), attotime::from_hz(60*8));
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
/* video hardware */
- screen_device &screen(SCREEN(config, "l_lcd", SCREEN_TYPE_LCD));
- screen.set_refresh_hz(60);
- screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
- screen.set_screen_update(FUNC(cesclassic_state::screen_update));
- screen.set_size(8*16*2, 8*8+3*8);
- screen.set_visarea(0*8, 8*16*2-1, 0*8, 8*8-1);
-
- PALETTE(config, m_palette, FUNC(cesclassic_state::cesclassic_palette), 4);
+ screen_device &l_screen(SCREEN(config, "l_lcd", SCREEN_TYPE_LCD));
+ l_screen.set_refresh_hz(60);
+ l_screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
+ l_screen.set_screen_update(FUNC(cesclassic_state::screen_update<0>));
+ l_screen.set_size(256+128, 64+24);
+ l_screen.set_visarea(0, 128 - 1, 0, 64 - 1);
+
+ screen_device &r_screen(SCREEN(config, "r_lcd", SCREEN_TYPE_LCD));
+ r_screen.set_refresh_hz(60);
+ r_screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
+ r_screen.set_screen_update(FUNC(cesclassic_state::screen_update<1>));
+ r_screen.set_size(256+128, 64+24);
+ r_screen.set_visarea(0, 128 - 1, 0, 64 - 1);
+
+ PALETTE(config, m_palette, FUNC(cesclassic_state::palette_init), 4);
SPEAKER(config, "mono").front_center();
OKIM6295(config, m_oki, 24000000/16, okim6295_device::PIN7_LOW).add_route(ALL_OUTPUTS, "mono", 0.5);