Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-31 10:01:51 +03:00
Code Issues Actions 4 Packages Projects Releases Wiki Activity

sk101bl: Show something on the LCD screen; preliminary keyboard stuff (nw)

Browse Source
This commit is contained in:
AJR 2019-09-02 20:11:18 -04:00
parent f0a5b3f7fa
commit e4f6a941cb
1 changed files with 55 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
src/mame/drivers/sk101bl.cpp
View File

@ -11,6 +11,8 @@ Attached to the keyboard is a backlit LCD module displaying one row of 16 charac
The main board incorporates two DSWs and a "BLMHYB01" hybrid module containing unknown interface logic.
TODO: figure out keycodes (are they translated externally?)
***********************************************************************************************************************************/
#include "emu.h"
@ -29,6 +31,7 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_lcdc(*this, "lcdc")
, m_key_row(*this, "ROW%u", 0U)
{
}
@ -43,23 +46,37 @@ private:
u8 p1_r();
void p1_w(u8 data);
void p24_latch_w(u8 data);
void scan_load_w(u8 data);
u8 scan_shift_r();
void lcd_control_w(u8 data);
void serial_tx_w(u8 data) { logerror("Serial TX: %02X\n", data); }
void prog_map(address_map &map);
void ext_map(address_map &map);
required_device<i80c31_device> m_maincpu;
required_device<hd44780_device> m_lcdc;
optional_ioport_array<16> m_key_row;
u8 m_lcd_data;
u8 m_p1_data;
u8 m_lcd_control;
u16 m_key_scan;
u16 m_shift_output;
u8 m_row_counter;
};
void sk101bl_state::machine_start()
{
save_item(NAME(m_lcd_data));
m_p1_data = 0xff;
m_shift_output = 0;
m_key_scan = 0xffff;
m_row_counter = 0;
save_item(NAME(m_p1_data));
save_item(NAME(m_lcd_control));
save_item(NAME(m_key_scan));
save_item(NAME(m_shift_output));
save_item(NAME(m_row_counter));
}
void sk101bl_state::machine_reset()
@ -69,32 +86,51 @@ void sk101bl_state::machine_reset()
HD44780_PIXEL_UPDATE(sk101bl_state::pixel_update)
{
if (pos < 16)
if (pos < 16 && line == 0)
bitmap.pix16(line * 10 + y, pos * 6 + x) = state;
}
u8 sk101bl_state::p1_r()
{
if (BIT(m_lcd_control, 1) && BIT(m_lcd_control, 3))
return m_lcdc->read(BIT(m_lcd_control, 2));
return m_lcd_data;
return m_lcdc->db_r();
}
void sk101bl_state::p1_w(u8 data)
{
m_lcd_data = data;
if (BIT(m_p1_data, 7) && BIT(m_p1_data, 6) && !BIT(data, 6) && !BIT(m_lcd_control, 2))
m_row_counter = (m_row_counter - 1) & 0x0f;
m_p1_data = data;
m_lcdc->db_w(data);
}
void sk101bl_state::p24_latch_w(u8 data)
void sk101bl_state::scan_load_w(u8 data)
{
logerror("%s: Writing %02X to P2.4 latch\n", machine().describe_context(), data);
m_key_scan = m_key_row[m_row_counter & 0x0f].read_safe(0xffff);
m_maincpu->set_input_line(MCS51_INT0_LINE, BIT(m_key_scan, 15) ? CLEAR_LINE : ASSERT_LINE);
}
u8 sk101bl_state::scan_shift_r()
{
if (!machine().side_effects_disabled())
{
m_key_scan = (m_key_scan << 1) | 1;
m_maincpu->set_input_line(MCS51_INT0_LINE, BIT(m_key_scan, 15) ? CLEAR_LINE : ASSERT_LINE);
}
return 0xff;
}
void sk101bl_state::lcd_control_w(u8 data)
{
if (BIT(data, 1) && !BIT(data, 3))
m_lcdc->write(BIT(data, 2), m_lcd_data);
if (BIT(data, 7) && !BIT(m_lcd_control, 7))
m_shift_output = (m_shift_output << 1) | (BIT(m_p1_data, 7) ? 0 : 1);
m_lcdc->rw_w(BIT(data, 3));
m_lcdc->rs_w(BIT(data, 2));
m_lcdc->e_w(BIT(data, 1));
if (BIT(data, 0))
m_row_counter = 0;
m_lcd_control = data;
}
@ -106,7 +142,9 @@ void sk101bl_state::prog_map(address_map &map)
void sk101bl_state::ext_map(address_map &map)
{
map(0x1000, 0x1000).mirror(0x0fff).w(FUNC(sk101bl_state::p24_latch_w));
map(0x0000, 0x0000).mirror(0x1fff).r(FUNC(sk101bl_state::scan_shift_r));
map(0x1000, 0x1000).mirror(0x0fff).w(FUNC(sk101bl_state::scan_load_w));
map(0x2000, 0x7fff).rom().region("program", 0x2000);
map(0x4000, 0x4000).mirror(0x0fff).w(FUNC(sk101bl_state::lcd_control_w));
map(0xe000, 0xffff).ram(); // TC5565APL-15L
}
@ -122,12 +160,13 @@ void sk101bl_state::sk101bl(machine_config &config)
m_maincpu->port_in_cb<1>().set(FUNC(sk101bl_state::p1_r));
m_maincpu->port_out_cb<1>().set(FUNC(sk101bl_state::p1_w));
m_maincpu->port_out_cb<3>().set("alarm", FUNC(speaker_sound_device::level_w)).bit(3);
m_maincpu->serial_tx_cb().set(FUNC(sk101bl_state::serial_tx_w));
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
screen.set_refresh_hz(50);
screen.set_screen_update("lcdc", FUNC(hd44780_device::screen_update));
screen.set_size(16*6, 20);
screen.set_visarea(0, 16*6-1, 0, 20-1);
screen.set_size(16*6, 10);
screen.set_visarea(0, 16*6-1, 0, 10-1);
screen.set_palette("palette");
HD44780(config, m_lcdc).set_lcd_size(1, 16);