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gamepock: use hd44102_device
This commit is contained in:
hap
parent
bb72f90c85
commit
6d5915c1de
2 changed files with 97 additions and 197 deletions
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@ -1,5 +1,5 @@
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// license:BSD-3-Clause
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// copyright-holders:Wilbert Pol
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// copyright-holders:Wilbert Pol, hap
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/******************************************************************************
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Epoch Game Pocket Computer
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@ -15,9 +15,6 @@ Hardware notes:
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Not counting the mini games included in the BIOS, only 5 games were released.
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It takes around 3 seconds for a cartridge to start up, this is normal.
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TODO:
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- use hd44102_device
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******************************************************************************/
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#include "emu.h"
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@ -26,6 +23,7 @@ TODO:
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#include "bus/generic/slot.h"
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#include "cpu/upd7810/upd7810.h"
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#include "sound/spkrdev.h"
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#include "video/hd44102.h"
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#include "emupal.h"
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#include "screen.h"
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@ -42,6 +40,7 @@ public:
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gamepock_state(const machine_config &mconfig, device_type type, const char *tag) :
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driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_lcd(*this, "lcd%u", 0),
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m_speaker(*this, "speaker"),
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m_inputs(*this, "IN%u", 0)
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{ }
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@ -50,133 +49,87 @@ public:
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protected:
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virtual void machine_start() override;
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virtual void machine_reset() override;
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private:
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required_device<upd78c06_device> m_maincpu;
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required_device_array<hd44102_device, 3> m_lcd;
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required_device<speaker_sound_device> m_speaker;
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required_ioport_array<2> m_inputs;
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struct HD44102CH {
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uint8_t enabled = 0U;
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uint8_t start_page = 0U;
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uint8_t address = 0U;
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uint8_t y_inc = 0U;
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uint8_t ram[256]{}; // There are actually 50 x 4 x 8 bits. This just makes addressing easier.
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};
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void control_w(u8 data);
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void lcd_data_w(u8 data);
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u8 input_r();
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u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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void hd44102ch_w(int which, int c_d, uint8_t data);
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void hd44102ch_init(int which);
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void lcd_update();
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void control_w(uint8_t data);
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void lcd_data_w(uint8_t data);
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uint8_t input_r();
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uint32_t screen_update_gamepock(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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void main_map(address_map &map);
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uint8_t m_port_a = 0U;
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uint8_t m_port_b = 0U;
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HD44102CH m_hd44102ch[3];
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u8 m_control = 0;
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u8 m_lcd_data = 0;
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};
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void gamepock_state::machine_start()
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{
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}
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void gamepock_state::machine_reset()
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{
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hd44102ch_init( 0 );
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hd44102ch_init( 1 );
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hd44102ch_init( 2 );
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save_item(NAME(m_control));
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save_item(NAME(m_lcd_data));
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}
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void gamepock_state::hd44102ch_w( int which, int c_d, uint8_t data )
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{
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if ( c_d )
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{
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uint8_t y;
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/* Data */
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m_hd44102ch[which].ram[ m_hd44102ch[which].address ] = data;
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/******************************************************************************
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I/O
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******************************************************************************/
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/* Increment/decrement Y counter */
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y = ( m_hd44102ch[which].address & 0x3F ) + m_hd44102ch[which].y_inc;
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if ( y == 0xFF )
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{
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y = 49;
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}
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if ( y == 50 )
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{
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y = 0;
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}
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m_hd44102ch[which].address = ( m_hd44102ch[which].address & 0xC0 ) | y;
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}
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else
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// LCD outputs
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u32 gamepock_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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for (int i = 0; i < 3; i++)
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{
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/* Command */
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switch ( data )
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const u8 *src = m_lcd[i]->render();
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for (int sx = 0; sx < 50; sx++)
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{
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case 0x38: /* Display off */
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m_hd44102ch[which].enabled = 0;
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break;
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case 0x39: /* Display on */
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m_hd44102ch[which].enabled = 1;
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break;
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case 0x3A: /* Y decrement mode */
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m_hd44102ch[which].y_inc = 0xFF;
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break;
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case 0x3B: /* Y increment mode */
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m_hd44102ch[which].y_inc = 0x01;
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break;
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case 0x3E: /* Display start page #0 */
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case 0x7E: /* Display start page #1 */
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case 0xBE: /* Display start page #2 */
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case 0xFE: /* Display start page #3 */
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m_hd44102ch[which].start_page = data & 0xC0;
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break;
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default:
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if ( ( data & 0x3F ) < 50 )
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for (int sy = 0; sy < 32; sy++)
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{
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m_hd44102ch[which].address = data;
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int dx = sx;
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int dy = sy;
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// determine destination coordinate
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switch (i)
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{
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// LCD chip #0: top-left, but reverse-x
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case 0:
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dx = 49 - sx;
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break;
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// LCD chip #1: bottom-left
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case 1:
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dy += 32;
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break;
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// LCD chip #2: top-right + bottom-right
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case 2:
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dx = (sx % 25) + 50;
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dy += (sx / 25) * 32;
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break;
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default:
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break;
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}
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if (cliprect.contains(dx, dy))
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bitmap.pix(dy, dx) = src[sy * 50 + sx];
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}
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break;
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}
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}
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return 0;
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}
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void gamepock_state::hd44102ch_init( int which )
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{
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memset( &m_hd44102ch[which], 0, sizeof( HD44102CH ) );
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m_hd44102ch[which].y_inc = 0x01;
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}
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// other I/O
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void gamepock_state::lcd_update()
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{
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/* Check whether HD44102CH #1 is enabled */
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if ( m_port_a & 0x08 )
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{
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hd44102ch_w( 0, m_port_a & 0x04, m_port_b );
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}
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/* Check whether HD44102CH #2 is enabled */
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if ( m_port_a & 0x10 )
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{
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hd44102ch_w( 1, m_port_a & 0x04, m_port_b );
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}
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/* Check whether HD44102CH #3 is enabled */
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if ( m_port_a & 0x20 )
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{
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hd44102ch_w( 2, m_port_a & 0x04, m_port_b );
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}
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}
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void gamepock_state::control_w(uint8_t data)
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void gamepock_state::control_w(u8 data)
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{
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// 76------ input select
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// --543--- LCD CS
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@ -184,111 +137,34 @@ void gamepock_state::control_w(uint8_t data)
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// ------1- LCD M (all 3)
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// -------0 unknown
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uint8_t old_port_a = m_port_a;
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m_port_a = data;
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if ( ! ( old_port_a & 0x02 ) && ( m_port_a & 0x02 ) )
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// write to LCD on falling edge of M
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if (~data & m_control & 2)
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{
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lcd_update();
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for (int i = 0; i < 3; i++)
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if (BIT(data, i + 3))
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m_lcd[i]->write(BIT(data, 2), m_lcd_data);
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}
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m_control = data;
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}
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void gamepock_state::lcd_data_w(uint8_t data)
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void gamepock_state::lcd_data_w(u8 data)
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{
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// LCD data
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m_port_b = data;
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// LCD DB0-DB7
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m_lcd_data = data;
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}
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uint8_t gamepock_state::input_r()
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u8 gamepock_state::input_r()
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{
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uint8_t data = 0xff;
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u8 data = 0xff;
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// read inputs
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for (int i = 0; i < 2; i++)
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if (BIT(m_port_a, i ^ 7))
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if (BIT(m_control, i ^ 7))
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data &= m_inputs[i]->read();
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return data;
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}
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uint32_t gamepock_state::screen_update_gamepock(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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uint8_t ad;
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/* Handle HD44102CH #0 */
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ad = m_hd44102ch[0].start_page;
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for ( int i = 0; i < 4; i++ )
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{
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for ( int j = 0; j < 50; j++ )
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{
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bitmap.pix(i * 8 + 0, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x01 ) ? 0 : 1;
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bitmap.pix(i * 8 + 1, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x02 ) ? 0 : 1;
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bitmap.pix(i * 8 + 2, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x04 ) ? 0 : 1;
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bitmap.pix(i * 8 + 3, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x08 ) ? 0 : 1;
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bitmap.pix(i * 8 + 4, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x10 ) ? 0 : 1;
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bitmap.pix(i * 8 + 5, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x20 ) ? 0 : 1;
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bitmap.pix(i * 8 + 6, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x40 ) ? 0 : 1;
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bitmap.pix(i * 8 + 7, 49 - j ) = ( m_hd44102ch[0].ram[ad+j] & 0x80 ) ? 0 : 1;
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}
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ad += 0x40;
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}
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/* Handle HD44102CH #1 */
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ad = m_hd44102ch[1].start_page;
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for ( int i = 4; i < 8; i++ )
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{
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for ( int j = 0; j < 50; j++ )
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{
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bitmap.pix(i * 8 + 0, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x01 ) ? 0 : 1;
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bitmap.pix(i * 8 + 1, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x02 ) ? 0 : 1;
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bitmap.pix(i * 8 + 2, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x04 ) ? 0 : 1;
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bitmap.pix(i * 8 + 3, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x08 ) ? 0 : 1;
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bitmap.pix(i * 8 + 4, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x10 ) ? 0 : 1;
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bitmap.pix(i * 8 + 5, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x20 ) ? 0 : 1;
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bitmap.pix(i * 8 + 6, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x40 ) ? 0 : 1;
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bitmap.pix(i * 8 + 7, j ) = ( m_hd44102ch[1].ram[ad+j] & 0x80 ) ? 0 : 1;
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}
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ad += 0x40;
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}
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/* Handle HD44102CH #2 */
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ad = m_hd44102ch[2].start_page;
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for ( int i = 0; i < 4; i++ )
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{
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for ( int j = 0; j < 25; j++ )
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{
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bitmap.pix(i * 8 + 0, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x01 ) ? 0 : 1;
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bitmap.pix(i * 8 + 1, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x02 ) ? 0 : 1;
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bitmap.pix(i * 8 + 2, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x04 ) ? 0 : 1;
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bitmap.pix(i * 8 + 3, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x08 ) ? 0 : 1;
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bitmap.pix(i * 8 + 4, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x10 ) ? 0 : 1;
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bitmap.pix(i * 8 + 5, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x20 ) ? 0 : 1;
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bitmap.pix(i * 8 + 6, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x40 ) ? 0 : 1;
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bitmap.pix(i * 8 + 7, 50 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x80 ) ? 0 : 1;
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}
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for ( int j = 25; j < 50; j++ )
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{
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bitmap.pix(32 + i * 8 + 0, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x01 ) ? 0 : 1;
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bitmap.pix(32 + i * 8 + 1, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x02 ) ? 0 : 1;
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bitmap.pix(32 + i * 8 + 2, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x04 ) ? 0 : 1;
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bitmap.pix(32 + i * 8 + 3, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x08 ) ? 0 : 1;
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bitmap.pix(32 + i * 8 + 4, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x10 ) ? 0 : 1;
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bitmap.pix(32 + i * 8 + 5, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x20 ) ? 0 : 1;
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bitmap.pix(32 + i * 8 + 6, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x40 ) ? 0 : 1;
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bitmap.pix(32 + i * 8 + 7, 25 + j ) = ( m_hd44102ch[2].ram[ad+j] & 0x80 ) ? 0 : 1;
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}
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ad += 0x40;
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}
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return 0;
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}
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void gamepock_state::main_map(address_map &map)
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{
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// 0x0000-0x0fff is internal ROM
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@ -298,6 +174,11 @@ void gamepock_state::main_map(address_map &map)
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}
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/******************************************************************************
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Input Ports
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******************************************************************************/
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static INPUT_PORTS_START( gamepock )
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PORT_START("IN0")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
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@ -317,6 +198,11 @@ static INPUT_PORTS_START( gamepock )
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INPUT_PORTS_END
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/******************************************************************************
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Machine Configs
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******************************************************************************/
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void gamepock_state::gamepock(machine_config &config)
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{
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// basic machine hardware
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@ -332,10 +218,13 @@ void gamepock_state::gamepock(machine_config &config)
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screen.set_refresh_hz(60);
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screen.set_size(75, 64);
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screen.set_visarea_full();
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screen.set_screen_update(FUNC(gamepock_state::screen_update_gamepock));
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screen.set_screen_update(FUNC(gamepock_state::screen_update));
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screen.set_palette("palette");
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PALETTE(config, "palette", palette_device::MONOCHROME);
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PALETTE(config, "palette", palette_device::MONOCHROME_INVERTED);
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for (int i = 0; i < 3; i++)
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HD44102(config, m_lcd[i]);
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config.set_default_layout(layout_gamepock);
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@ -349,6 +238,11 @@ void gamepock_state::gamepock(machine_config &config)
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}
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/******************************************************************************
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ROM Definitions
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******************************************************************************/
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ROM_START( gamepock )
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ROM_REGION( 0x1000, "maincpu", 0 )
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ROM_LOAD( "egpcboot.bin", 0x0000, 0x1000, CRC(ee1ea65d) SHA1(9c7731b5ead721d2cc7f7e2655c5fed9e56db8b0) )
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@ -357,4 +251,10 @@ ROM_END
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} // anonymous namespace
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CONS( 1984, gamepock, 0, 0, gamepock, gamepock, gamepock_state, empty_init, "Epoch", "Game Pocket Computer", 0 )
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/******************************************************************************
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Drivers
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******************************************************************************/
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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CONS( 1984, gamepock, 0, 0, gamepock, gamepock, gamepock_state, empty_init, "Epoch", "Game Pocket Computer", MACHINE_SUPPORTS_SAVE )
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@ -269,5 +269,5 @@ ROM_END
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Drivers
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******************************************************************************/
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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CONS( 1990, gmaster, 0, 0, gmaster, gmaster, gmaster_state, empty_init, "Hartung", "Game Master", MACHINE_SUPPORTS_SAVE )
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