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bud/idpartner/gdp.cpp: hook AVDC and added char rom

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This commit is contained in:
Miodrag Milanovic 2024-02-15 17:53:57 +01:00
parent d089f6b649
commit b3bde8cb99
2 changed files with 136 additions and 21 deletions
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153
src/devices/bus/idpartner/gdp.cpp
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@ -9,6 +9,7 @@
#include "emu.h"
#include "gdp.h"
#include "machine/timer.h"
#include "machine/z80pio.h"
#include "video/ef9365.h"
#include "video/scn2674.h"
@ -30,18 +31,37 @@ protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
private:
void char_w(u8 data);
void attr_w(u8 data);
void scroll_w(u8 data);
void char_w(u8 data) { m_avdc->buffer_w(data); }
void attr_w(u8 data) { m_avdc->attr_buffer_w(data); }
void scroll_w(u8 data) { m_scroll = data; }
u8 common_r() { m_common ^= 0x10; return m_common; }
void porta_w(u8 data);
void portb_w(u8 data);
void vram_w(offs_t offset, u8 data);
u8 vram_r(offs_t offset);
void msl_w(u8 data);
void gdc_map(address_map &map);
void int_w(int state) { m_bus->int_w(state); }
void nmi_w(int state) { m_bus->nmi_w(state); }
SCN2674_DRAW_CHARACTER_MEMBER(draw_character);
TIMER_DEVICE_CALLBACK_MEMBER(scanline) { m_gdc->update_scanline(param); }
void char_map(address_map &map);
void attr_map(address_map &map);
required_device<ef9365_device> m_gdc;
//required_device<scn2674_device> m_avdc;
memory_share_creator<u8> m_vram;
required_device<scn2674_device> m_avdc;
required_device<z80pio_device> m_pio;
required_device<palette_device> m_palette;
required_region_ptr<u8> m_p_chargen;
u8 m_scroll;
u8 m_common;
};
@ -49,8 +69,13 @@ idpartner_gdp_device::idpartner_gdp_device(const machine_config &mconfig, const
: device_t(mconfig, IDPARTNER_GDP, tag, owner, clock)
, bus::idpartner::device_exp_card_interface(mconfig, *this)
, m_gdc(*this, "gdc")
//, m_avdc(*this, "avdc")
, m_vram(*this, "vram", 0x20000, ENDIANNESS_LITTLE)
, m_avdc(*this, "avdc")
, m_pio(*this, "pio")
, m_palette(*this, "palette")
, m_p_chargen(*this, "chargen")
, m_scroll(0)
, m_common(0)
{
}
@ -60,6 +85,7 @@ idpartner_gdp_device::idpartner_gdp_device(const machine_config &mconfig, const
void idpartner_gdp_device::device_start()
{
save_item(NAME(m_scroll));
}
void idpartner_gdp_device::device_reset()
@ -71,27 +97,99 @@ void idpartner_gdp_device::device_reset()
m_bus->io().install_write_handler(0x34, 0x34, emu::rw_delegate(*this, FUNC(idpartner_gdp_device::char_w))); // char reg
m_bus->io().install_write_handler(0x35, 0x35, emu::rw_delegate(*this, FUNC(idpartner_gdp_device::attr_w))); // attr reg
m_bus->io().install_write_handler(0x36, 0x36, emu::rw_delegate(*this, FUNC(idpartner_gdp_device::scroll_w))); // scroll reg/common input
//map(0x38,0x3f).rw(m_avdc, FUNC(scn2674_device::read), FUNC(scn2674_device::write)); // AVDC SCN2674
m_bus->io().install_read_handler (0x36, 0x36, emu::rw_delegate(*this, FUNC(idpartner_gdp_device::common_r))); // common input
m_bus->io().install_read_handler (0x38, 0x3f, emu::rw_delegate(m_avdc, FUNC(scn2674_device::read))); // AVDC SCN2674
m_bus->io().install_write_handler(0x38, 0x3f, emu::rw_delegate(m_avdc, FUNC(scn2674_device::write))); // AVDC SCN2674
}
void idpartner_gdp_device::char_w(u8 data)
void idpartner_gdp_device::porta_w(u8 data)
{
//printf("char:%02x\n",data);
//printf("porta_w:%02x\n",data);
}
void idpartner_gdp_device::attr_w(u8 data)
void idpartner_gdp_device::portb_w(u8 data)
{
//printf("attr:%02x\n",data);
//printf("portb_w:%02x\n",data);
}
void idpartner_gdp_device::scroll_w(u8 data)
void idpartner_gdp_device::msl_w(u8 data)
{
//printf("scroll:%02x\n",data);
//printf("msl_w:%02x\n",data);
}
void idpartner_gdp_device::vram_w(offs_t offset, u8 data)
{
u16 addr = (m_scroll << 7) - offset;
m_vram[addr] = data;
}
u8 idpartner_gdp_device::vram_r(offs_t offset)
{
u16 addr = (m_scroll << 7) - offset;
return m_vram[addr];
}
// 16 * 4164 DRAM
void idpartner_gdp_device::gdc_map(address_map &map)
{
map(0x0000, 0x1ffff).ram();
map(0x0000, 0x1ffff).rw(FUNC(idpartner_gdp_device::vram_r), FUNC(idpartner_gdp_device::vram_w));
}
// 2 * 6116 SRAM for chars
void idpartner_gdp_device::char_map(address_map &map)
{
map(0x0000, 0x0fff).ram().share("charram");
map(0x1000, 0x2fff).ram(); // TODO: Check in schematics
}
// 2 * 6116 SRAM for attributes
void idpartner_gdp_device::attr_map(address_map &map)
{
map(0x0000, 0x0fff).ram().share("attrmap");
map(0x1000, 0x2fff).ram(); // TODO: Check in schematics
}
/* F4 Character Displayer */
static const gfx_layout gdp_charlayout =
{
8, 12, /* 8 x 12 characters */
256, /* 128 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
/* x offsets */
{ 7, 6, 5, 4, 3, 2, 1, 0 },
/* y offsets */
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8 },
8*16 /* every char takes 16 bytes */
};
static GFXDECODE_START( gfx_partner )
GFXDECODE_ENTRY( "chargen", 0x0000, gdp_charlayout, 0, 1 )
GFXDECODE_END
// one 2732 EPROM for chargen
ROM_START(gdp_char_rom)
ROM_REGION( 0x1000, "chargen",0 )
ROM_LOAD( "gdp_chgi.ic46", 0x0000, 0x1000, CRC(f4aaf0dd) SHA1(7c7c2d855fdfb90c86ed47c1b33c354c922ed4d0))
ROM_END
const tiny_rom_entry *idpartner_gdp_device::device_rom_region() const
{
return ROM_NAME( gdp_char_rom );
}
SCN2674_DRAW_CHARACTER_MEMBER( idpartner_gdp_device::draw_character )
{
uint16_t data = m_p_chargen[charcode << 4 | linecount];
const pen_t *const pen = m_palette->pens();
if (cursor)
data = ~data;
// draw 9 pixels of the character
for (int i = 0; i < 9; i++)
bitmap.pix(y, x + i) = BIT(data, i) ? pen[0] : pen[1];
}
void idpartner_gdp_device::device_add_mconfig(machine_config &config)
@ -100,25 +198,42 @@ void idpartner_gdp_device::device_add_mconfig(machine_config &config)
screen.set_screen_update(m_gdc, FUNC(ef9365_device::screen_update));
screen.set_size(1024, 512);
screen.set_visarea(0, 1024-1, 0, 512-1);
screen.set_refresh_hz(25);
screen.set_refresh_hz(50);
PALETTE(config, "palette", palette_device::MONOCHROME_INVERTED);
screen_device &screen2(SCREEN(config, "screen2", SCREEN_TYPE_RASTER, rgb_t::green()));
screen2.set_screen_update(m_avdc, FUNC(scn2674_device::screen_update));
screen2.set_size(1024, 512);
screen2.set_visarea(0, 1024-1, 0, 512-1);
screen2.set_refresh_hz(50);
GFXDECODE(config, "gfxdecode", "palette", gfx_partner);
EF9365(config, m_gdc, XTAL(24'000'000) / 16); // EF9367 1.5 MHz
m_gdc->set_screen("screen");
m_gdc->set_addrmap(0, &idpartner_gdp_device::gdc_map);
m_gdc->set_palette_tag("palette");
m_gdc->set_nb_bitplanes(1);
m_gdc->set_display_mode(ef9365_device::DISPLAY_MODE_1024x512);
m_gdc->write_msl().set(FUNC(idpartner_gdp_device::msl_w));
//SCN2674(config, m_avdc, XTAL(24'000'000) / 16); // SCN2674B
//m_avdc->set_screen("screen");
//m_avdc->set_character_width(12);
//m_avdc->intr_callback().set(FUNC(idpartner_gdp_device::nmi_w));
TIMER(config, "scanline").configure_scanline(FUNC(idpartner_gdp_device::scanline), "screen", 0, 1);
SCN2674(config, m_avdc, XTAL(24'000'000) / 16); // SCN2674B
m_avdc->set_screen("screen2");
m_avdc->set_character_width(12);
m_avdc->set_addrmap(0, &idpartner_gdp_device::char_map);
m_avdc->set_addrmap(1, &idpartner_gdp_device::attr_map);
m_avdc->set_display_callback(FUNC(idpartner_gdp_device::draw_character));
//m_avdc->intr_callback().set(FUNC(idpartner_gdp_device::nmi_w));
Z80PIO(config, m_pio, XTAL(8'000'000) / 2);
m_pio->out_int_callback().set(FUNC(idpartner_gdp_device::int_w));
m_pio->out_pa_callback().set(FUNC(idpartner_gdp_device::porta_w));
m_pio->out_pb_callback().set(FUNC(idpartner_gdp_device::portb_w));
}
} // anonymous namespace
DEFINE_DEVICE_TYPE_PRIVATE(IDPARTNER_GDP, bus::idpartner::device_exp_card_interface, idpartner_gdp_device, "gdp", "Iskra Delta Partner GDP")
DEFINE_DEVICE_TYPE_PRIVATE(IDPARTNER_GDP, bus::idpartner::device_exp_card_interface, idpartner_gdp_device, "partner_gdp", "Iskra Delta Partner GDP")

4
src/devices/video/scn2674.h
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@ -33,9 +33,9 @@ public:
uint8_t read(offs_t offset);
void write(offs_t offset, uint8_t data);
uint8_t buffer_r() { return m_char_buffer; }
void buffer_w(offs_t offset, uint8_t data) { m_char_buffer = data; }
void buffer_w(uint8_t data) { m_char_buffer = data; }
uint8_t attr_buffer_r() { return m_attr_buffer; }
void attr_buffer_w(offs_t offset, uint8_t data) { m_attr_buffer = data; }
void attr_buffer_w(uint8_t data) { m_attr_buffer = data; }
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);