// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Schleicher MES 30/08/2010 Skeleton driver ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.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, "p_videoram"){ } required_device m_maincpu; const UINT8 *m_p_chargen; required_shared_ptr m_p_videoram; virtual void machine_reset() override; virtual void video_start() override; UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); }; static ADDRESS_MAP_START(mes_mem, AS_PROGRAM, 8, mes_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x0fff) AM_ROM AM_RANGE(0x1000, 0xefff) AM_RAM AM_RANGE(0xf000, 0xffff) AM_RAM AM_SHARE("p_videoram") ADDRESS_MAP_END static ADDRESS_MAP_START( mes_io, AS_IO, 8, mes_state) ADDRESS_MAP_GLOBAL_MASK(0xff) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( mes ) INPUT_PORTS_END void mes_state::machine_reset() { } void mes_state::video_start() { m_p_chargen = memregion("chargen")->base(); } /* This system appears to have 2 screens. Not implemented. Also the screen dimensions are a guess. */ UINT32 mes_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { //static UINT8 framecnt=0; UINT8 y,ra,chr,gfx; UINT16 sy=0,ma=0,x,xx; //framecnt++; for (y = 0; y < 25; y++) { for (ra = 0; ra < 10; ra++) { UINT16 *p = &bitmap.pix16(sy++); xx = ma; for (x = ma; x < ma + 80; x++) { gfx = 0; if (ra < 9) { chr = m_p_videoram[xx++]; // /* Take care of flashing characters */ // if ((chr < 0x80) && (framecnt & 0x08)) // chr |= 0x80; if (chr & 0x80) // ignore attribute bytes x--; else 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; } static MACHINE_CONFIG_START( mes, mes_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", Z80, XTAL_16MHz / 4) MCFG_CPU_PROGRAM_MAP(mes_mem) MCFG_CPU_IO_MAP(mes_io) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_UPDATE_DRIVER(mes_state, screen_update) MCFG_SCREEN_SIZE(640, 250) MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 249) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD_MONOCHROME("palette") MACHINE_CONFIG_END /* ROM definition */ ROM_START( mes ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "mescpu.bin", 0x0000, 0x1000, CRC(b6d90cf4) SHA1(19e608af5bdaabb00a134e1106b151b00e2a0b04)) ROM_REGION( 0x10000, "xebec", ROMREGION_ERASEFF ) 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 INIT COMPANY FULLNAME FLAGS */ COMP( 198?, mes, 0, 0, mes, mes, driver_device, 0, "Schleicher", "MES", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)