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kpontoon: add text layer tilemap, palette, and char ROM readback for POST [R. Belmont]
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arbee
parent
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commit
65f56d19c5
@ -1,18 +1,21 @@
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// license:BSD-3-Clause
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// copyright-holders:
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// copyright-holders: R. Belmont
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/*
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Pontoon (GS270) (c) 1993 Konami
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Pontoon (GS270) (c) 1993 Konami
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PWB353261A
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PWB353261A
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2 Z84C0008PEC
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1 053246A
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1 053247A
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1 054539
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1 053252
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3 8-dip banks
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3 XTALs (1 21.05300MHz and 2 18.43200MHz)
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2 Z84C0008PEC
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1 053246A
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1 053247A
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1 054539
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1 053252
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3 8-dip banks
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3 XTALs (1 21.05300MHz and 2 18.43200MHz)
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TTL char readback:
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C000-D000 window, control bit 7 enables ROM readback, bit 6 selects which ROM, F450 banks
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*/
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#include "emu.h"
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@ -23,7 +26,7 @@ PWB353261A
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#include "emupal.h"
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#include "screen.h"
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#include "speaker.h"
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#include "tilemap.h"
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namespace {
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@ -33,43 +36,98 @@ public:
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kpontoon_state(const machine_config &mconfig, device_type type, const char *tag) :
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driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_mainbank(*this, "mainbank")
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m_mainbank(*this, "mainbank"),
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m_ttl_vram(*this, "ttl_vram"),
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m_gfxdecode(*this, "gfxdecode"),
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m_palette(*this, "palette"),
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m_charview(*this, "charview"),
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m_charrom(*this, "chars")
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{ }
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void kpontoon(machine_config &config);
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protected:
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virtual void machine_start() override;
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virtual void machine_reset() override;
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private:
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tilemap_t *m_ttl_tilemap;
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void main_map(address_map &map);
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void sound_map(address_map &map);
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required_device<cpu_device> m_maincpu;
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required_memory_bank m_mainbank;
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required_shared_ptr<u8> m_ttl_vram;
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required_device<gfxdecode_device> m_gfxdecode;
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required_device<palette_device> m_palette;
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memory_view m_charview;
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required_region_ptr<u8> m_charrom;
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void bankswitch_w(uint8_t data);
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void control_w(u8 data);
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void charrom_bank_w(u8 data);
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u8 charrom_r(offs_t offset);
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void ttl_ram_w(offs_t offset, u8 data);
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uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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TILE_GET_INFO_MEMBER(ttl_get_tile_info);
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u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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u8 m_control;
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u8 m_charrom_bank;
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};
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void kpontoon_state::bankswitch_w(uint8_t data)
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void kpontoon_state::control_w(u8 data)
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{
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m_mainbank->set_entry(data & 0x03);
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/*
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bit 7 = 1 to enable char ROM readback at C000-D000, 0 for char VRAM
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bit 6 = ?
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bit 5 = char ROM select for readback
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bit 4 = ?
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bit 3 = ?
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bit 2 = ?
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bit 0,1 = program ROM bank
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*/
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// logerror("f830 write: %02x\n", data);
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m_mainbank->set_entry(data & 0x03);
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m_charview.select(BIT(data, 7));
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m_control = data;
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}
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void kpontoon_state::charrom_bank_w(u8 data)
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{
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m_charrom_bank = data;
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}
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u8 kpontoon_state::charrom_r(offs_t offset)
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{
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offs_t loc = ((0x1000 * m_charrom_bank) + offset) << 1;
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// ROMs are byte interleaved, bit 6 selects which ROM we're reading
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if (!BIT(m_control, 5))
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{
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loc += 1;
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}
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return m_charrom[loc];
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}
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void kpontoon_state::main_map(address_map &map)
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{
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map(0x0000, 0x7fff).rom().region("maincpu", 0);
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map(0x8000, 0x9fff).bankr(m_mainbank);
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map(0xa000, 0xafff).ram(); // ?
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map(0xb000, 0xbfff).ram(); // ?
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map(0xc000, 0xcfff).ram(); // chars
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map(0xe000, 0xefff).ram(); // ?
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map(0xf000, 0xf1ff).ram(); // palette?
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map(0xf830, 0xf830).w(FUNC(kpontoon_state::bankswitch_w));
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map(0xa000, 0xafff).ram();
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map(0xb000, 0xbfff).ram(); // work RAM (stack is here)
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map(0x0000, 0xffff).view(m_charview);
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m_charview[0](0xc000, 0xcfff).ram().share("ttl_vram").w(FUNC(kpontoon_state::ttl_ram_w));
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m_charview[1](0xc000, 0xcfff).r(FUNC(kpontoon_state::charrom_r));
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map(0xe000, 0xefff).ram();
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map(0xf000, 0xf1ff).ram().w(m_palette, FUNC(palette_device::write8)).share("palette");
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map(0xf450, 0xf450).w(FUNC(kpontoon_state::charrom_bank_w));
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map(0xf470, 0xf470).nopw(); // watchdog
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map(0xf830, 0xf830).w(FUNC(kpontoon_state::control_w));
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}
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void kpontoon_state::sound_map(address_map &map)
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@ -120,10 +178,38 @@ void kpontoon_state::machine_start()
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{
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m_mainbank->configure_entries(0, 4, memregion("maincpu")->base() + 0x8000, 0x2000);
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m_mainbank->set_entry(0);
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m_ttl_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(kpontoon_state::ttl_get_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 64, 32);
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m_ttl_tilemap->set_transparent_pen(0);
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}
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void kpontoon_state::machine_reset()
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{
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m_charview.select(0);
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}
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void kpontoon_state::ttl_ram_w(offs_t offset, u8 data)
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{
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u8 *vram = (u8 *)m_ttl_vram.target();
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vram[offset] = data;
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m_ttl_tilemap->mark_tile_dirty(offset / 2);
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}
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TILE_GET_INFO_MEMBER(kpontoon_state::ttl_get_tile_info)
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{
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u8 *vram = (u8 *)m_ttl_vram.target();
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int attr, code;
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attr = vram[(tile_index << 1) + 1];
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code = vram[(tile_index << 1)];
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tileinfo.set(0, code, attr, 0);
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}
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uint32_t kpontoon_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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bitmap.fill(0, cliprect);
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m_ttl_tilemap->draw(screen, bitmap, cliprect, 0, 0);
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return 0;
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}
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@ -147,13 +233,13 @@ void kpontoon_state::kpontoon(machine_config &config)
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); // TODO: all wrong
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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_size(64*8, 32*8);
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screen.set_visarea(13*8, (64-13)*8-1, 2*8, 30*8-1);
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screen.set_size(128*8, 64*8);
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screen.set_visarea(26*8, 90*8-1, 24, 56*8-1);
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screen.set_screen_update(FUNC(kpontoon_state::screen_update));
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screen.set_palette("palette");
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PALETTE(config, "palette").set_format(palette_device::xBGR_555, 512); // TODO: all wrong
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GFXDECODE(config, "gfxdecode", "palette", gfx_pontoon);
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PALETTE(config, m_palette).set_format(palette_device::xBGR_555, 256); // TODO: all wrong
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GFXDECODE(config, m_gfxdecode, "palette", gfx_pontoon);
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// sound hardware
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SPEAKER(config, "lspeaker").front_left();
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@ -162,7 +248,7 @@ void kpontoon_state::kpontoon(machine_config &config)
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k053247_device &k053246(K053246(config, "k053246", 0));
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//k053246.set_sprite_callback(FUNC(kpontoon_state::sprite_callback));
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k053246.set_config(NORMAL_PLANE_ORDER, 0, 0); // TODO: verify
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k053246.set_palette("palette");
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k053246.set_palette(m_palette);
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k054539_device &k054539(K054539(config, "k054539", 18.432_MHz_XTAL));
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k054539.add_route(0, "rspeaker", 0.75);
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@ -187,7 +273,7 @@ ROM_START( kpontoon )
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ROM_LOAD64_BYTE( "270ea13.bin", 0x00001, 0x10000, CRC(ead4a114) SHA1(ddce7c4c4606cedcc05c1d2e5fdeda5d1358c97e) )
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ROM_LOAD64_BYTE( "270ea14.bin", 0x00000, 0x10000, CRC(ac6b06c2) SHA1(5584b1d1047f0e447dd20252eb0ec3089bd228fe) )
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ROM_REGION( 0x40000, "chars", 0 ) // they aren't near any Konami custom
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ROM_REGION( 0x40000, "chars", 0 )
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ROM_LOAD16_BYTE( "270ea05.bin", 0x00000, 0x20000, CRC(d08e9a8b) SHA1(d333fa4f89907dd223e7a7d6c57a7fc78e61ee2d) )
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ROM_LOAD16_BYTE( "270ea06.bin", 0x00001, 0x20000, CRC(11eccb4b) SHA1(b943aa492819aa0563fc5295a890cd59c4b8aa4c) )
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