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mmdisplay2: hd44780_device is not optional_device

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hap 2021-04-24 16:40:27 +02:00
parent 4e6cea2f8f
commit 0c3cd2504b
3 changed files with 13 additions and 17 deletions
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1
src/mame/video/mmdisplay1.cpp
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@ -9,7 +9,6 @@ with 4 4015 dual shift registers.
*********************************************************************/
#include "emu.h"
#include "mmdisplay1.h"

10
src/mame/video/mmdisplay2.cpp
View file

@ -9,9 +9,11 @@ but that part is emulated in the driver.
*********************************************************************/
#include "emu.h"
#include "mmdisplay2.h"
#include "screen.h"
#include "speaker.h"
DEFINE_DEVICE_TYPE(MEPHISTO_DISPLAY_MODULE2, mephisto_display2_device, "mdisplay2", "Mephisto Display Module 2")
@ -19,7 +21,7 @@ DEFINE_DEVICE_TYPE(MEPHISTO_DISPLAY_MODULE2, mephisto_display2_device, "mdisplay
// constructor
//-------------------------------------------------
mephisto_display2_device::mephisto_display2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
mephisto_display2_device::mephisto_display2_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, MEPHISTO_DISPLAY_MODULE2, tag, owner, clock)
, m_lcd(*this, "hd44780")
, m_dac(*this, "dac")
@ -93,12 +95,12 @@ void mephisto_display2_device::device_reset()
// I/O handlers
//-------------------------------------------------
void mephisto_display2_device::latch_w(uint8_t data)
void mephisto_display2_device::latch_w(u8 data)
{
m_latch = data;
}
void mephisto_display2_device::io_w(uint8_t data)
void mephisto_display2_device::io_w(u8 data)
{
if (BIT(data, 1) && !BIT(m_ctrl, 1))
m_lcd->write(BIT(data, 0), m_latch);

19
src/mame/video/mmdisplay2.h
View file

@ -11,26 +11,22 @@
#pragma once
#include "video/hd44780.h"
#include "sound/dac.h"
#include "video/hd44780.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
// ======================> mephisto_display2_device
class mephisto_display2_device : public device_t
{
public:
// construction/destruction
mephisto_display2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
mephisto_display2_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
hd44780_device *get() { return m_lcd; }
void latch_w(uint8_t data);
void io_w(uint8_t data);
void latch_w(u8 data);
void io_w(u8 data);
u8 io_r() { return m_ctrl; }
protected:
@ -40,18 +36,17 @@ protected:
virtual void device_add_mconfig(machine_config &config) override;
private:
optional_device<hd44780_device> m_lcd;
required_device<hd44780_device> m_lcd;
required_device<dac_byte_interface> m_dac;
void lcd_palette(palette_device &palette) const;
HD44780_PIXEL_UPDATE(lcd_pixel_update);
uint8_t m_latch = 0;
uint8_t m_ctrl = 0;
u8 m_latch = 0;
u8 m_ctrl = 0;
};
// device type definition
DECLARE_DEVICE_TYPE(MEPHISTO_DISPLAY_MODULE2, mephisto_display2_device)
#endif // MAME_VIDEO_MMDISPLAY2_H