// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Schleicher MES 2010-08-30 Skeleton driver ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/z80ctc.h" #include "machine/z80pio.h" #include "machine/z80sio.h" #include "machine/keyboard.h" #include "emupal.h" #include "screen.h" class mes_state : public driver_device { public: mes_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_p_videoram(*this, "videoram") , m_p_chargen(*this, "chargen") { } void mes(machine_config &config); private: void machine_reset() override; void machine_start() override; u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void kbd_put(u8 data); u8 port00_r(); u8 port08_r(); void io_map(address_map &map); void mem_map(address_map &map); u8 m_term_data; u8 m_port08; required_device m_maincpu; required_shared_ptr m_p_videoram; required_region_ptr m_p_chargen; }; u8 mes_state::port00_r() { u8 ret = m_term_data; m_term_data = 0; return ret; } u8 mes_state::port08_r() { return m_port08 | (m_term_data ? 0x80 : 0); } void mes_state::mem_map(address_map &map) { map.unmap_value_high(); map(0x0000, 0x0fff).rom(); map(0x1000, 0xefff).ram(); map(0xf000, 0xffff).ram().share("videoram"); } void mes_state::io_map(address_map &map) { map.global_mask(0xff); map(0x00, 0x00).r(FUNC(mes_state::port00_r)); map(0x08, 0x08).r(FUNC(mes_state::port08_r)); map(0x0c, 0x0f).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); map(0x10, 0x13).rw("sio", FUNC(z80sio_device::cd_ba_r), FUNC(z80sio_device::cd_ba_w)); map(0x18, 0x1b).rw("pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write)); } /* Input ports */ static INPUT_PORTS_START( mes ) INPUT_PORTS_END void mes_state::machine_start() { save_item(NAME(m_term_data)); save_item(NAME(m_port08)); } void mes_state::machine_reset() { m_port08 = 0; m_term_data = 0; } /* This system appears to have 2 screens. Not implemented. Also the screen dimensions are a guess. */ uint32_t mes_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { u8 y,ra,chr,gfx; u16 sy=0,ma=0,x; for (y = 0; y < 25; y++) { for (ra = 0; ra < 10; ra++) { u16 *p = &bitmap.pix16(sy++); for (x = ma; x < ma + 80; x++) { gfx = 0; if (ra < 9) { chr = m_p_videoram[x]; gfx = m_p_chargen[(chr<<4) | ra ]; } /* Display a scanline of a character */ *p++ = BIT(gfx, 7); *p++ = BIT(gfx, 6); *p++ = BIT(gfx, 5); *p++ = BIT(gfx, 4); *p++ = BIT(gfx, 3); *p++ = BIT(gfx, 2); *p++ = BIT(gfx, 1); *p++ = BIT(gfx, 0); } } ma+=80; } return 0; } void mes_state::kbd_put(u8 data) { m_term_data = data; } void mes_state::mes(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, XTAL(16'000'000) / 4); m_maincpu->set_addrmap(AS_PROGRAM, &mes_state::mem_map); m_maincpu->set_addrmap(AS_IO, &mes_state::io_map); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ screen.set_screen_update(FUNC(mes_state::screen_update)); screen.set_size(640, 250); screen.set_visarea(0, 639, 0, 249); screen.set_palette("palette"); PALETTE(config, "palette", palette_device::MONOCHROME); Z80CTC(config, "ctc", 0); Z80PIO(config, "pio", 0); Z80SIO(config, "sio", 0); generic_keyboard_device &keybd(GENERIC_KEYBOARD(config, "keybd", 0)); keybd.set_keyboard_callback(FUNC(mes_state::kbd_put)); } /* ROM definition */ ROM_START( mes ) ROM_REGION( 0x1000, "maincpu", 0 ) ROM_LOAD( "mescpu.bin", 0x0000, 0x1000, CRC(b6d90cf4) SHA1(19e608af5bdaabb00a134e1106b151b00e2a0b04)) ROM_REGION( 0x2000, "xebec", 0 ) ROM_LOAD( "mesxebec.bin", 0x0000, 0x2000, CRC(061b7212) SHA1(c5d600116fb7563c69ebd909eb9613269b2ada0f)) /* character generator not dumped, using the one from 'c10' for now */ ROM_REGION( 0x2000, "chargen", 0 ) ROM_LOAD( "c10_char.bin", 0x0000, 0x2000, BAD_DUMP CRC(cb530b6f) SHA1(95590bbb433db9c4317f535723b29516b9b9fcbf)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 198?, mes, 0, 0, mes, mes, mes_state, empty_init, "Schleicher", "MES", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )