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taito/cucaracha.cpp: add LCD screen and GFX bank

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This commit is contained in:
angelosa 2026-05-24 11:49:11 +02:00
parent 33eabc4b3d
commit 9567b9f372
3 changed files with 77 additions and 13 deletions
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4
src/mame/ces/cesclass.cpp
View File

@ -27,9 +27,11 @@ TODO:
#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "sound/okim6295.h"
#include "machine/nvram.h"
#include "sound/okim6295.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"

3
src/mame/skeleton/flashvga2.cpp
View File

@ -233,12 +233,11 @@ INPUT_PORTS_END
void flashvga2_state::machine_start()
{
m_program_bank->configure_entries(0, 0x20, memregion("program_rom")->base(), 0x40000);
}
void flashvga2_state::machine_reset()
{
m_program_bank->configure_entries(0, 0x20, memregion("program_rom")->base(), 0x40000);
m_program_bank->set_entry(0);
}

83
src/mame/taito/cucaracha.cpp
View File

@ -13,7 +13,7 @@
***************************************************************************/
#include "emu.h"
#include "speaker.h"
#include "cpu/z80/z80.h"
//#include "machine/m66240.h"
#include "machine/te7750.h"
@ -21,6 +21,10 @@
#include "sound/ymopn.h"
#include "taitosnd.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
namespace {
class cucaracha_state : public driver_device
@ -29,10 +33,20 @@ public:
cucaracha_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_program_bank(*this, "program_bank")
, m_vram(*this, "vram")
, m_screen(*this, "screen")
, m_palette(*this, "palette")
{ }
void cucaracha(machine_config &config);
protected:
virtual void machine_start() override ATTR_COLD;
virtual void machine_reset() override ATTR_COLD;
void palette_init(palette_device &palette) const;
private:
void out4_w(uint8_t data);
void out5_w(uint8_t data);
@ -45,14 +59,51 @@ private:
void main_map(address_map &map) ATTR_COLD;
void sound_map(address_map &map) ATTR_COLD;
virtual void machine_start() override ATTR_COLD;
required_device<cpu_device> m_maincpu;
required_memory_bank m_program_bank;
required_shared_ptr<uint8_t> m_vram;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};
void cucaracha_state::palette_init(palette_device &palette) const
{
// TODO: improve, may really be b&w with red bezel, and reversed?
for (int idx = 0; idx < 4; idx++)
palette.set_pen_color(idx, 0x55 * idx, 0x19 * idx, 0x26 * idx);
}
uint32_t cucaracha_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
for(int y = cliprect.min_y; y <= cliprect.max_y; y++)
{
const u32 base_address = y * 0x20;
for(int x = cliprect.min_x; x <= cliprect.max_x; x+= 4)
{
const u32 x_address = base_address + (x >> 2);
for(int xi = 0; xi < 4; xi++)
{
int pen = (m_vram[x_address] >> ((3 - xi) * 2)) & 3;
bitmap.pix(y, x + xi) = m_palette->pen(pen);
}
}
}
return 0;
}
void cucaracha_state::machine_start()
{
m_program_bank->configure_entries(0, 8, memregion("program_rom")->base(), 0x2000);
}
void cucaracha_state::machine_reset()
{
m_program_bank->set_entry(4);
}
@ -84,6 +135,8 @@ void cucaracha_state::out8_w(uint8_t data)
void cucaracha_state::out9_w(uint8_t data)
{
logerror("Writing %02X to TE7750 port 9\n", data);
// assumed, writes a 4 when displaying ERR 5
m_program_bank->set_entry(data & 7);
}
void cucaracha_state::ym_porta_w(uint8_t data)
@ -95,11 +148,10 @@ void cucaracha_state::ym_porta_w(uint8_t data)
void cucaracha_state::main_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0x9fff).rom(); // probably banked
map(0x0000, 0x7fff).rom().region("program_rom", 0);
map(0x8000, 0x9fff).bankr(m_program_bank);
map(0xa000, 0xbfff).ram();
// c000-c??? = ?
// c200-c??? = ?
map(0xc000, 0xc3ff).ram().share("vram");
// d000 = ?output
// d001 = ?output
// d101 = ?output
@ -131,7 +183,8 @@ void cucaracha_state::cucaracha(machine_config &config)
{
Z80(config, m_maincpu, XTAL(16'000'000) / 4); // divider not verified
m_maincpu->set_addrmap(AS_PROGRAM, &cucaracha_state::main_map);
// IRQ from ???
// TODO: pinpoint IRQ source
m_maincpu->set_periodic_int(FUNC(cucaracha_state::irq0_line_hold), attotime::from_hz(60));
// NMI related to E002 input and TE7750 port 7
te7750_device &te7750(TE7750(config, "te7750"));
@ -154,6 +207,16 @@ void cucaracha_state::cucaracha(machine_config &config)
ciu.nmi_callback().set_inputline("soundcpu", INPUT_LINE_NMI);
ciu.reset_callback().set_inputline("soundcpu", INPUT_LINE_RESET);
SCREEN(config, m_screen, SCREEN_TYPE_LCD);
m_screen->set_refresh_hz(60);
m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(0));
m_screen->set_size(128, 16);
m_screen->set_visarea(0, 128 - 1, 0, 16 - 1);
m_screen->set_screen_update(FUNC(cucaracha_state::screen_update));
m_screen->set_palette(m_palette);
PALETTE(config, m_palette, FUNC(cucaracha_state::palette_init), 4);
SPEAKER(config, "mono").front_center();
ym2203_device &ymsnd(YM2203(config, "ymsnd", 3000000));
@ -257,7 +320,7 @@ INPUT_PORTS_START( cucaracha )
INPUT_PORTS_END
ROM_START( cucaracha )
ROM_REGION( 0x20000, "maincpu", 0 )
ROM_REGION( 0x20000, "program_rom", 0 )
ROM_LOAD( "ic2", 0, 0x20000, CRC(f9dbca28) SHA1(b2f6d6b66bfa5e5ca7c26a0709f7136bf9e1a42e) )
// 8000-FFFF are graphics; 10000-1FFFF is unused
@ -277,7 +340,7 @@ ROM_START( cucaracha )
ROM_END
ROM_START( cucaracha2 )
ROM_REGION( 0x20000, "maincpu", 0 )
ROM_REGION( 0x20000, "program_rom", 0 )
ROM_LOAD( "ic2.rom", 0, 0x20000, CRC(03bf24d1) SHA1(ef63a5be25d77ac20984402cc45137d292a9fa1d) )
// 8000-FFFF are graphics; 10000-1FFFF is unused