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author hap <happppp@users.noreply.github.com>2022-09-20 20:58:52 +0200
committer hap <happppp@users.noreply.github.com>2022-09-20 20:58:52 +0200
commit6d5915c1de3d064e46589a223e0bb8d352a85d3d (patch)
tree609134c7e24ff9021bac0b2124ed405663815599
parentbb72f90c854275fa369b38fc95c30ac303a49dba (diff)
gamepock: use hd44102_device
-rw-r--r--src/mame/epoch/gamepock.cpp288
-rw-r--r--src/mame/handheld/gmaster.cpp2
2 files changed, 95 insertions, 195 deletions
diff --git a/src/mame/epoch/gamepock.cpp b/src/mame/epoch/gamepock.cpp
index 84ced7cc8a5..423bae7b37f 100644
--- a/src/mame/epoch/gamepock.cpp
+++ b/src/mame/epoch/gamepock.cpp
@@ -1,5 +1,5 @@
// license:BSD-3-Clause
-// copyright-holders:Wilbert Pol
+// copyright-holders:Wilbert Pol, hap
/******************************************************************************
Epoch Game Pocket Computer
@@ -15,9 +15,6 @@ Hardware notes:
Not counting the mini games included in the BIOS, only 5 games were released.
It takes around 3 seconds for a cartridge to start up, this is normal.
-TODO:
-- use hd44102_device
-
******************************************************************************/
#include "emu.h"
@@ -26,6 +23,7 @@ TODO:
#include "bus/generic/slot.h"
#include "cpu/upd7810/upd7810.h"
#include "sound/spkrdev.h"
+#include "video/hd44102.h"
#include "emupal.h"
#include "screen.h"
@@ -42,6 +40,7 @@ public:
gamepock_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
+ m_lcd(*this, "lcd%u", 0),
m_speaker(*this, "speaker"),
m_inputs(*this, "IN%u", 0)
{ }
@@ -50,133 +49,87 @@ public:
protected:
virtual void machine_start() override;
- virtual void machine_reset() override;
private:
required_device<upd78c06_device> m_maincpu;
+ required_device_array<hd44102_device, 3> m_lcd;
required_device<speaker_sound_device> m_speaker;
required_ioport_array<2> m_inputs;
- struct HD44102CH {
- uint8_t enabled = 0U;
- uint8_t start_page = 0U;
- uint8_t address = 0U;
- uint8_t y_inc = 0U;
- uint8_t ram[256]{}; // There are actually 50 x 4 x 8 bits. This just makes addressing easier.
- };
-
- void hd44102ch_w(int which, int c_d, uint8_t data);
- void hd44102ch_init(int which);
- void lcd_update();
-
- void control_w(uint8_t data);
- void lcd_data_w(uint8_t data);
- uint8_t input_r();
- uint32_t screen_update_gamepock(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ void control_w(u8 data);
+ void lcd_data_w(u8 data);
+ u8 input_r();
+ u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+
void main_map(address_map &map);
- uint8_t m_port_a = 0U;
- uint8_t m_port_b = 0U;
- HD44102CH m_hd44102ch[3];
+ u8 m_control = 0;
+ u8 m_lcd_data = 0;
};
void gamepock_state::machine_start()
{
+ save_item(NAME(m_control));
+ save_item(NAME(m_lcd_data));
}
-void gamepock_state::machine_reset()
-{
- hd44102ch_init( 0 );
- hd44102ch_init( 1 );
- hd44102ch_init( 2 );
-}
+/******************************************************************************
+ I/O
+******************************************************************************/
+
+// LCD outputs
-void gamepock_state::hd44102ch_w( int which, int c_d, uint8_t data )
+u32 gamepock_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
- if ( c_d )
+ for (int i = 0; i < 3; i++)
{
- uint8_t y;
- /* Data */
- m_hd44102ch[which].ram[ m_hd44102ch[which].address ] = data;
+ const u8 *src = m_lcd[i]->render();
- /* Increment/decrement Y counter */
- y = ( m_hd44102ch[which].address & 0x3F ) + m_hd44102ch[which].y_inc;
- if ( y == 0xFF )
+ for (int sx = 0; sx < 50; sx++)
{
- y = 49;
- }
- if ( y == 50 )
- {
- y = 0;
- }
- m_hd44102ch[which].address = ( m_hd44102ch[which].address & 0xC0 ) | y;
- }
- else
- {
- /* Command */
- switch ( data )
- {
- case 0x38: /* Display off */
- m_hd44102ch[which].enabled = 0;
- break;
- case 0x39: /* Display on */
- m_hd44102ch[which].enabled = 1;
- break;
- case 0x3A: /* Y decrement mode */
- m_hd44102ch[which].y_inc = 0xFF;
- break;
- case 0x3B: /* Y increment mode */
- m_hd44102ch[which].y_inc = 0x01;
- break;
- case 0x3E: /* Display start page #0 */
- case 0x7E: /* Display start page #1 */
- case 0xBE: /* Display start page #2 */
- case 0xFE: /* Display start page #3 */
- m_hd44102ch[which].start_page = data & 0xC0;
- break;
- default:
- if ( ( data & 0x3F ) < 50 )
+ for (int sy = 0; sy < 32; sy++)
{
- m_hd44102ch[which].address = data;
+ int dx = sx;
+ int dy = sy;
+
+ // determine destination coordinate
+ switch (i)
+ {
+ // LCD chip #0: top-left, but reverse-x
+ case 0:
+ dx = 49 - sx;
+ break;
+
+ // LCD chip #1: bottom-left
+ case 1:
+ dy += 32;
+ break;
+
+ // LCD chip #2: top-right + bottom-right
+ case 2:
+ dx = (sx % 25) + 50;
+ dy += (sx / 25) * 32;
+ break;
+
+ default:
+ break;
+ }
+
+ if (cliprect.contains(dx, dy))
+ bitmap.pix(dy, dx) = src[sy * 50 + sx];
}
- break;
}
}
-}
-
-void gamepock_state::hd44102ch_init( int which )
-{
- memset( &m_hd44102ch[which], 0, sizeof( HD44102CH ) );
- m_hd44102ch[which].y_inc = 0x01;
+ return 0;
}
-void gamepock_state::lcd_update()
-{
- /* Check whether HD44102CH #1 is enabled */
- if ( m_port_a & 0x08 )
- {
- hd44102ch_w( 0, m_port_a & 0x04, m_port_b );
- }
-
- /* Check whether HD44102CH #2 is enabled */
- if ( m_port_a & 0x10 )
- {
- hd44102ch_w( 1, m_port_a & 0x04, m_port_b );
- }
-
- /* Check whether HD44102CH #3 is enabled */
- if ( m_port_a & 0x20 )
- {
- hd44102ch_w( 2, m_port_a & 0x04, m_port_b );
- }
-}
-
+// other I/O
-void gamepock_state::control_w(uint8_t data)
+void gamepock_state::control_w(u8 data)
{
// 76------ input select
// --543--- LCD CS
@@ -184,111 +137,34 @@ void gamepock_state::control_w(uint8_t data)
// ------1- LCD M (all 3)
// -------0 unknown
- uint8_t old_port_a = m_port_a;
-
- m_port_a = data;
-
- if ( ! ( old_port_a & 0x02 ) && ( m_port_a & 0x02 ) )
+ // write to LCD on falling edge of M
+ if (~data & m_control & 2)
{
- lcd_update();
+ for (int i = 0; i < 3; i++)
+ if (BIT(data, i + 3))
+ m_lcd[i]->write(BIT(data, 2), m_lcd_data);
}
-}
+ m_control = data;
+}
-void gamepock_state::lcd_data_w(uint8_t data)
+void gamepock_state::lcd_data_w(u8 data)
{
- // LCD data
- m_port_b = data;
+ // LCD DB0-DB7
+ m_lcd_data = data;
}
-
-uint8_t gamepock_state::input_r()
+u8 gamepock_state::input_r()
{
- uint8_t data = 0xff;
+ u8 data = 0xff;
- // read inputs
for (int i = 0; i < 2; i++)
- if (BIT(m_port_a, i ^ 7))
+ if (BIT(m_control, i ^ 7))
data &= m_inputs[i]->read();
return data;
}
-
-
-uint32_t gamepock_state::screen_update_gamepock(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- uint8_t ad;
-
- /* Handle HD44102CH #0 */
- ad = m_hd44102ch[0].start_page;
- for ( int i = 0; i < 4; i++ )
- {
- for ( int j = 0; j < 50; j++ )
- {
- bitmap.pix(i * 8 + 0, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x01 ) ? 0 : 1;
- bitmap.pix(i * 8 + 1, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x02 ) ? 0 : 1;
- bitmap.pix(i * 8 + 2, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x04 ) ? 0 : 1;
- bitmap.pix(i * 8 + 3, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x08 ) ? 0 : 1;
- bitmap.pix(i * 8 + 4, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x10 ) ? 0 : 1;
- bitmap.pix(i * 8 + 5, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x20 ) ? 0 : 1;
- bitmap.pix(i * 8 + 6, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x40 ) ? 0 : 1;
- bitmap.pix(i * 8 + 7, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x80 ) ? 0 : 1;
- }
- ad += 0x40;
- }
-
- /* Handle HD44102CH #1 */
- ad = m_hd44102ch[1].start_page;
- for ( int i = 4; i < 8; i++ )
- {
- for ( int j = 0; j < 50; j++ )
- {
- bitmap.pix(i * 8 + 0, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x01 ) ? 0 : 1;
- bitmap.pix(i * 8 + 1, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x02 ) ? 0 : 1;
- bitmap.pix(i * 8 + 2, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x04 ) ? 0 : 1;
- bitmap.pix(i * 8 + 3, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x08 ) ? 0 : 1;
- bitmap.pix(i * 8 + 4, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x10 ) ? 0 : 1;
- bitmap.pix(i * 8 + 5, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x20 ) ? 0 : 1;
- bitmap.pix(i * 8 + 6, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x40 ) ? 0 : 1;
- bitmap.pix(i * 8 + 7, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x80 ) ? 0 : 1;
- }
- ad += 0x40;
- }
-
- /* Handle HD44102CH #2 */
- ad = m_hd44102ch[2].start_page;
- for ( int i = 0; i < 4; i++ )
- {
- for ( int j = 0; j < 25; j++ )
- {
- bitmap.pix(i * 8 + 0, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x01 ) ? 0 : 1;
- bitmap.pix(i * 8 + 1, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x02 ) ? 0 : 1;
- bitmap.pix(i * 8 + 2, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x04 ) ? 0 : 1;
- bitmap.pix(i * 8 + 3, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x08 ) ? 0 : 1;
- bitmap.pix(i * 8 + 4, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x10 ) ? 0 : 1;
- bitmap.pix(i * 8 + 5, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x20 ) ? 0 : 1;
- bitmap.pix(i * 8 + 6, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x40 ) ? 0 : 1;
- bitmap.pix(i * 8 + 7, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x80 ) ? 0 : 1;
- }
- for ( int j = 25; j < 50; j++ )
- {
- bitmap.pix(32 + i * 8 + 0, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x01 ) ? 0 : 1;
- bitmap.pix(32 + i * 8 + 1, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x02 ) ? 0 : 1;
- bitmap.pix(32 + i * 8 + 2, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x04 ) ? 0 : 1;
- bitmap.pix(32 + i * 8 + 3, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x08 ) ? 0 : 1;
- bitmap.pix(32 + i * 8 + 4, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x10 ) ? 0 : 1;
- bitmap.pix(32 + i * 8 + 5, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x20 ) ? 0 : 1;
- bitmap.pix(32 + i * 8 + 6, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x40 ) ? 0 : 1;
- bitmap.pix(32 + i * 8 + 7, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x80 ) ? 0 : 1;
- }
- ad += 0x40;
- }
-
- return 0;
-}
-
-
void gamepock_state::main_map(address_map &map)
{
// 0x0000-0x0fff is internal ROM
@@ -298,6 +174,11 @@ void gamepock_state::main_map(address_map &map)
}
+
+/******************************************************************************
+ Input Ports
+******************************************************************************/
+
static INPUT_PORTS_START( gamepock )
PORT_START("IN0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
@@ -317,6 +198,11 @@ static INPUT_PORTS_START( gamepock )
INPUT_PORTS_END
+
+/******************************************************************************
+ Machine Configs
+******************************************************************************/
+
void gamepock_state::gamepock(machine_config &config)
{
// basic machine hardware
@@ -332,10 +218,13 @@ void gamepock_state::gamepock(machine_config &config)
screen.set_refresh_hz(60);
screen.set_size(75, 64);
screen.set_visarea_full();
- screen.set_screen_update(FUNC(gamepock_state::screen_update_gamepock));
+ screen.set_screen_update(FUNC(gamepock_state::screen_update));
screen.set_palette("palette");
- PALETTE(config, "palette", palette_device::MONOCHROME);
+ PALETTE(config, "palette", palette_device::MONOCHROME_INVERTED);
+
+ for (int i = 0; i < 3; i++)
+ HD44102(config, m_lcd[i]);
config.set_default_layout(layout_gamepock);
@@ -349,6 +238,11 @@ void gamepock_state::gamepock(machine_config &config)
}
+
+/******************************************************************************
+ ROM Definitions
+******************************************************************************/
+
ROM_START( gamepock )
ROM_REGION( 0x1000, "maincpu", 0 )
ROM_LOAD( "egpcboot.bin", 0x0000, 0x1000, CRC(ee1ea65d) SHA1(9c7731b5ead721d2cc7f7e2655c5fed9e56db8b0) )
@@ -357,4 +251,10 @@ ROM_END
} // anonymous namespace
-CONS( 1984, gamepock, 0, 0, gamepock, gamepock, gamepock_state, empty_init, "Epoch", "Game Pocket Computer", 0 )
+
+/******************************************************************************
+ Drivers
+******************************************************************************/
+
+// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
+CONS( 1984, gamepock, 0, 0, gamepock, gamepock, gamepock_state, empty_init, "Epoch", "Game Pocket Computer", MACHINE_SUPPORTS_SAVE )
diff --git a/src/mame/handheld/gmaster.cpp b/src/mame/handheld/gmaster.cpp
index 2ed307540d3..0a7f77ba3ac 100644
--- a/src/mame/handheld/gmaster.cpp
+++ b/src/mame/handheld/gmaster.cpp
@@ -269,5 +269,5 @@ ROM_END
Drivers
******************************************************************************/
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME
+// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
CONS( 1990, gmaster, 0, 0, gmaster, gmaster, gmaster_state, empty_init, "Hartung", "Game Master", MACHINE_SUPPORTS_SAVE )