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ml20: Add keypad input

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Also add speaker (not hooked up), dipswitches (not hookedup ) and
add some additional logging. Start documenting the CPU ports.
This commit is contained in:
Dirk Best 2019-08-07 17:12:50 +02:00
parent d4c84459c6
commit 460bc3dc93
1 changed files with 144 additions and 4 deletions
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148
src/mame/drivers/ml20.cpp
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@ -45,7 +45,6 @@
Display = Hyundai HC16203-A (Hitachi HD44780A00 based).
Status:
- Shows current date and time, then presumably waits for keypad input
- Needs currently unimplemented V25 features (serial etc.)
***************************************************************************/
@ -54,8 +53,10 @@
#include "cpu/nec/v25.h"
#include "machine/msm6242.h"
#include "video/hd44780.h"
#include "sound/spkrdev.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
class ml20_state : public driver_device
{
@ -63,7 +64,10 @@ public:
ml20_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_lcdc(*this, "lcdc")
m_lcdc(*this, "lcdc"),
m_speaker(*this, "speaker"),
m_keys(*this, "COL.%d", 0U),
m_dsw(*this, "DSW")
{}
void ml20(machine_config &config);
@ -72,13 +76,29 @@ public:
HD44780_PIXEL_UPDATE(lcd_pixel_update);
protected:
void machine_start() override;
private:
required_device<cpu_device> m_maincpu;
required_device<v25_device> m_maincpu;
required_device<hd44780_device> m_lcdc;
required_device<speaker_sound_device> m_speaker;
required_ioport_array<4> m_keys;
required_ioport m_dsw;
void mem_map(address_map &map);
void io_map(address_map &map);
uint8_t p0_r();
uint8_t p1_r();
uint8_t p2_r();
void p0_w(uint8_t data);
void p1_w(uint8_t data);
void p2_w(uint8_t data);
uint8_t pt_r();
uint8_t m_p0;
uint8_t m_p1;
uint8_t m_p2;
};
void ml20_state::mem_map(address_map &map)
@ -95,6 +115,43 @@ void ml20_state::io_map(address_map &map)
}
static INPUT_PORTS_START( ml20 )
PORT_START("COL.0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("ENTER")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_NAME("0")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("CLEAR")
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_NAME("ler. MARC")
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_START("COL.1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_NAME("9")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_NAME("8")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_NAME("7")
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_NAME("MENSAJ.")
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_START("COL.2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_NAME("6")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_NAME("5")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_NAME("4")
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_NAME("SALDOS")
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_START("COL.3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_NAME("3")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_NAME("2")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_NAME("1")
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_NAME("ANULAR")
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_START("DSW")
PORT_DIPUNKNOWN(0x01, 0x01)
PORT_DIPUNKNOWN(0x02, 0x02)
PORT_DIPUNKNOWN(0x04, 0x04)
PORT_DIPUNKNOWN(0x08, 0x08)
PORT_DIPUNKNOWN(0x10, 0x10)
PORT_DIPUNKNOWN(0x20, 0x20)
PORT_DIPUNKNOWN(0x40, 0x40)
PORT_DIPUNKNOWN(0x80, 0x80)
INPUT_PORTS_END
void ml20_state::lcd_palette(palette_device &palette) const
@ -114,11 +171,92 @@ HD44780_PIXEL_UPDATE( ml20_state::lcd_pixel_update )
bitmap.pix16(1 + y + line*8 + line, 1 + pos*6 + x) = state ? 1 : 2;
}
// 7654---- unknown (set to input)
// ----3210 keypad column
uint8_t ml20_state::p0_r()
{
return m_p0;
}
void ml20_state::p0_w(uint8_t data)
{
if (0)
logerror("p0_w: %d %d %d %d %d %d %d %d\n", BIT(data, 7), BIT(data, 6), BIT(data, 5), BIT(data, 4), BIT(data, 3), BIT(data, 2), BIT(data, 1), BIT(data, 0));
m_p0 = data;
}
// 765----- unknown (set to output)
// ---43210 unknown (set to input)
uint8_t ml20_state::p1_r()
{
return m_p1;
}
void ml20_state::p1_w(uint8_t data)
{
if (0)
logerror("p1_w: %d %d %d %d %d %d %d %d\n", BIT(data, 7), BIT(data, 6), BIT(data, 5), BIT(data, 4), BIT(data, 3), BIT(data, 2), BIT(data, 1), BIT(data, 0));
m_p1 = data;
}
// 7------- some kind of heartbeat? led?
// -6------ unknown (set to output)
// --543--- unknown (set to input)
// -----2-- set when waiting for keypad or other data?
// ------1- toggles continously
// -------0 unknown (set to output)
uint8_t ml20_state::p2_r()
{
return m_p2;
}
void ml20_state::p2_w(uint8_t data)
{
if (0)
logerror("p2_w: %d %d %d %d %d %d %d %d\n", BIT(data, 7), BIT(data, 6), BIT(data, 5), BIT(data, 4), BIT(data, 3), BIT(data, 2), BIT(data, 1), BIT(data, 0));
m_p2 = data;
}
uint8_t ml20_state::pt_r()
{
uint8_t data = 0xff;
if (BIT(m_p0, 0) == 0) data &= m_keys[0]->read();
if (BIT(m_p0, 1) == 0) data &= m_keys[1]->read();
if (BIT(m_p0, 2) == 0) data &= m_keys[2]->read();
if (BIT(m_p0, 3) == 0) data &= m_keys[3]->read();
return data;
}
void ml20_state::machine_start()
{
// register for save states
save_item(NAME(m_p0));
save_item(NAME(m_p1));
save_item(NAME(m_p2));
}
void ml20_state::ml20(machine_config &config)
{
V25(config, m_maincpu, 16_MHz_XTAL / 2); // unknown clock
m_maincpu->set_addrmap(AS_PROGRAM, &ml20_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &ml20_state::io_map);
m_maincpu->p0_in_cb().set(FUNC(ml20_state::p0_r));
m_maincpu->p0_out_cb().set(FUNC(ml20_state::p0_w));
m_maincpu->p1_in_cb().set(FUNC(ml20_state::p1_r));
m_maincpu->p1_out_cb().set(FUNC(ml20_state::p1_w));
m_maincpu->p2_in_cb().set(FUNC(ml20_state::p2_r));
m_maincpu->p2_out_cb().set(FUNC(ml20_state::p2_w));
m_maincpu->pt_in_cb().set(FUNC(ml20_state::pt_r));
MSM6242(config, "rtc", 32.768_kHz_XTAL);
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
@ -135,7 +273,9 @@ void ml20_state::ml20(machine_config &config)
m_lcdc->set_lcd_size(2, 16);
m_lcdc->set_pixel_update_cb(FUNC(ml20_state::lcd_pixel_update), this);
MSM6242(config, "rtc", 32.768_kHz_XTAL);
// sound
SPEAKER(config, "mono").front_center();
SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.25);
}
ROM_START( ml20 )