summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/video/mmdisplay2.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/video/mmdisplay2.cpp')
-rw-r--r--src/mame/video/mmdisplay2.cpp27
1 files changed, 19 insertions, 8 deletions
diff --git a/src/mame/video/mmdisplay2.cpp b/src/mame/video/mmdisplay2.cpp
index fee2739463e..750e7506173 100644
--- a/src/mame/video/mmdisplay2.cpp
+++ b/src/mame/video/mmdisplay2.cpp
@@ -8,6 +8,7 @@ but that part is emulated in the driver.
TODO:
- add mmdisplay1.cpp, the one with shift registers and 4-digit lcd
+- correct lcd screen aspect ratio in layouts
*********************************************************************/
@@ -25,7 +26,7 @@ DEFINE_DEVICE_TYPE(MEPHISTO_DISPLAY_MODULE2, mephisto_display_module2_device, "m
mephisto_display_module2_device::mephisto_display_module2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, MEPHISTO_DISPLAY_MODULE2, tag, owner, clock)
- , m_lcdc(*this, "hd44780")
+ , m_lcd(*this, "hd44780")
, m_dac(*this, "dac")
{
}
@@ -39,15 +40,18 @@ void mephisto_display_module2_device::device_add_mconfig(machine_config &config)
{
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
- screen.set_refresh_hz(50);
- screen.set_size(16*6, 9*2);
- screen.set_visarea(0, 16*6-1, 0, 9*2-3);
+ screen.set_refresh_hz(60); // arbitrary
+ screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
+ screen.set_size(6*16+1, 9*2+1);
+ screen.set_visarea_full();
screen.set_screen_update("hd44780", FUNC(hd44780_device::screen_update));
screen.set_palette("palette");
- PALETTE(config, "palette", FUNC(mephisto_display_module2_device::lcd_palette), 2);
- HD44780(config, m_lcdc, 0);
- m_lcdc->set_lcd_size(2, 16);
+ PALETTE(config, "palette", FUNC(mephisto_display_module2_device::lcd_palette), 3);
+
+ HD44780(config, m_lcd, 0);
+ m_lcd->set_lcd_size(2, 16);
+ m_lcd->set_pixel_update_cb(FUNC(mephisto_display_module2_device::lcd_pixel_update));
/* sound hardware */
SPEAKER(config, "speaker").front_center();
@@ -61,6 +65,13 @@ void mephisto_display_module2_device::lcd_palette(palette_device &palette) const
{
palette.set_pen_color(0, rgb_t(138, 146, 148)); // background
palette.set_pen_color(1, rgb_t(51, 42, 43)); // lcd pixel on
+ palette.set_pen_color(2, rgb_t(130, 136, 137)); // lcd pixel off
+}
+
+HD44780_PIXEL_UPDATE(mephisto_display_module2_device::lcd_pixel_update)
+{
+ if (x < 5 && y < 8 && line < 2 && pos < 16)
+ bitmap.pix16(line*9 + 1 + y, 1 + pos*6 + x) = state ? 1 : 2;
}
@@ -98,7 +109,7 @@ void mephisto_display_module2_device::latch_w(uint8_t data)
void mephisto_display_module2_device::io_w(uint8_t data)
{
if (BIT(data, 1) && !BIT(m_ctrl, 1))
- m_lcdc->write(BIT(data, 0), m_latch);
+ m_lcd->write(BIT(data, 0), m_latch);
m_dac->write(data >> 2 & 3);