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eurit30: Add LCD screen

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This commit is contained in:
AJR 2020-05-14 14:26:11 -04:00
parent b686ad854c
commit 45b9a3fcf1
1 changed files with 34 additions and 14 deletions
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48
src/mame/drivers/eurit.cpp
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@ -9,6 +9,9 @@
#include "emu.h"
#include "cpu/m37710/m37710.h"
#include "machine/am79c30.h"
#include "video/hd44780.h"
#include "emupal.h"
#include "screen.h"
class eurit_state : public driver_device
{
@ -22,25 +25,19 @@ public:
void eurit30(machine_config &mconfig);
private:
void p4_w(u8 data);
void p6_w(u8 data);
HD44780_PIXEL_UPDATE(lcd_pixel_update);
void mem_map(address_map &map);
required_device<m37730s2_device> m_maincpu;
void palette_init(palette_device &palette);
u8 m_p4 = 0;
required_device<m37730s2_device> m_maincpu;
};
void eurit_state::p4_w(u8 data)
HD44780_PIXEL_UPDATE(eurit_state::lcd_pixel_update)
{
m_p4 = data;
}
void eurit_state::p6_w(u8 data)
{
if (BIT(data, 6))
logerror("%s: Writing $%X to LCDC %s register\n", machine().describe_context(), (m_p4 & 0xf0) >> 4, BIT(data, 4) ? "data" : "instruction");
if (x < 5 && y < 8 && line < 2 && pos < 20)
bitmap.pix16(line * 8 + y, pos * 6 + x) = state;
}
@ -56,15 +53,38 @@ void eurit_state::mem_map(address_map &map)
static INPUT_PORTS_START(eurit30)
INPUT_PORTS_END
void eurit_state::palette_init(palette_device &palette)
{
palette.set_pen_color(0, rgb_t(131, 136, 139));
palette.set_pen_color(1, rgb_t( 92, 83, 88));
}
void eurit_state::eurit30(machine_config &config)
{
M37730S2(config, m_maincpu, 8'000'000); // type and clock unknown
m_maincpu->set_addrmap(AS_PROGRAM, &eurit_state::mem_map);
m_maincpu->p4_out_cb().set(FUNC(eurit_state::p4_w));
m_maincpu->p6_out_cb().set(FUNC(eurit_state::p6_w));
m_maincpu->p4_out_cb().set("lcdc", FUNC(hd44780_device::db_w));
m_maincpu->p6_out_cb().set("lcdc", FUNC(hd44780_device::e_w)).bit(6);
m_maincpu->p6_out_cb().append("lcdc", FUNC(hd44780_device::rw_w)).bit(5);
m_maincpu->p6_out_cb().append("lcdc", FUNC(hd44780_device::rs_w)).bit(4);
am79c30a_device &dsc(AM79C30A(config, "dsc", 12'288'000));
dsc.int_callback().set_inputline(m_maincpu, M37710_LINE_IRQ0);
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
screen.set_refresh_hz(60);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
screen.set_screen_update("lcdc", FUNC(hd44780_device::screen_update));
screen.set_size(6*20, 8*2);
screen.set_visarea_full();
screen.set_palette("palette");
PALETTE(config, "palette", FUNC(eurit_state::palette_init), 2);
hd44780_device &lcdc(HD44780(config, "lcdc", 0));
lcdc.set_lcd_size(2, 20);
lcdc.set_pixel_update_cb(FUNC(eurit_state::lcd_pixel_update));
lcdc.set_busy_factor(0.01);
}