/*************************************************************************** TIM-100 Terminal Mihajlo Pupin Institute 21/12/2012 Skeleton driver. ****************************************************************************/ #include "emu.h" #include "cpu/i8085/i8085.h" #include "machine/i8251.h" #include "video/i8275.h" class tim100_state : public driver_device { public: tim100_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_palette(*this, "palette") { } required_device m_maincpu; required_device m_palette; virtual void machine_reset(); }; static ADDRESS_MAP_START(tim100_mem, AS_PROGRAM, 8, tim100_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x1fff) AM_ROM // 2764 at U16 AM_RANGE(0x2000, 0x27ff) AM_RAM // 2KB static ram CDM6116A at U15 AM_RANGE(0xc000, 0xc001) AM_DEVREADWRITE("i8276", i8275_device, read, write) AM_RANGE(0x6000, 0x6000) AM_DEVREADWRITE("uart_u17", i8251_device, status_r, control_w) AM_RANGE(0x6001, 0x6001) AM_DEVREADWRITE("uart_u17", i8251_device, data_r, data_w) AM_RANGE(0x8000, 0x8000) AM_DEVREADWRITE("uart_u18", i8251_device, status_r, control_w) AM_RANGE(0x8001, 0x8001) AM_DEVREADWRITE("uart_u18", i8251_device, data_r, data_w) ADDRESS_MAP_END static ADDRESS_MAP_START(tim100_io, AS_IO, 8, tim100_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( tim100 ) INPUT_PORTS_END static const rgb_t tim100_palette[3] = { rgb_t(0x00, 0x00, 0x00), // black rgb_t(0xa0, 0xa0, 0xa0), // white rgb_t(0xff, 0xff, 0xff) // highlight }; void tim100_state::machine_reset() { m_palette->set_pen_colors(0, tim100_palette, ARRAY_LENGTH(tim100_palette)); } const gfx_layout tim100_charlayout = { 12, 16, /* 8x16 characters */ 256, /* 128 characters */ 1, /* 1 bits per pixel */ {0}, /* no bitplanes; 1 bit per pixel */ {0,1,2,3,4,5,0x8000,0x8001,0x8002,0x8003,0x8004,0x8005}, {0 * 8, 1 * 8, 2 * 8, 3 * 8, 4 * 8, 5 * 8, 6 * 8, 7 * 8, 8 * 8, 9 * 8, 10 * 8, 11 * 8, 12 * 8, 13 * 8, 14 * 8, 15 * 8}, 8*16 /* space between characters */ }; static GFXDECODE_START( tim100 ) GFXDECODE_ENTRY( "chargen", 0x0000, tim100_charlayout, 0, 1 ) GFXDECODE_END // this gets called via a (i8275_dack_w), so does nothing currently // once fixed, pixel count needs adjusting static I8275_DISPLAY_PIXELS(tim100_display_pixels) { tim100_state *state = device->machine().driver_data(); int i; const rgb_t *palette = state->m_palette->palette()->entry_list_raw(); UINT8 *charmap = state->memregion("chargen")->base(); UINT8 pixels = charmap[(linecount & 15) + (charcode << 4)]; if (vsp) { pixels = 0; } if (lten) { pixels = 0xff; } if (rvv) { pixels ^= 0xff; } for(i=0;i<8;i++) // 6 pixels { bitmap.pix32(y, x + i) = palette[(pixels >> (7-i)) & 1 ? (hlgt ? 2 : 1) : 0]; } } static const i8275_interface tim100_i8276_interface = { 16, //12 0, DEVCB_CPU_INPUT_LINE("maincpu", I8085_RST65_LINE), DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, tim100_display_pixels }; static MACHINE_CONFIG_START( tim100, tim100_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",I8085A, XTAL_4_9152MHz) // divider unknown MCFG_CPU_PROGRAM_MAP(tim100_mem) MCFG_CPU_IO_MAP(tim100_io) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_UPDATE_DEVICE("i8276", i8275_device, screen_update) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(40*16, 16*16) MCFG_SCREEN_VISIBLE_AREA(0, 40*16-1, 0, 16*16-1) MCFG_GFXDECODE_ADD("gfxdecode", "palette", tim100 ) MCFG_I8275_ADD ( "i8276", tim100_i8276_interface) MCFG_PALETTE_ADD("palette", 3) MCFG_DEVICE_ADD("uart_u17", I8251, 0) MCFG_DEVICE_ADD("uart_u18", I8251, 0) MACHINE_CONFIG_END /* ROM definition */ ROM_START( tim100 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "tim 100 v.3.2.0.u16", 0x0000, 0x2000, CRC(4de9c8ad) SHA1(b0914d6e8d618e92a87b4b39c35391541251e8cc)) // The first and 2nd halves of these roms are identical, confirmed ok ROM_REGION( 0x2000, "chargen", ROMREGION_INVERT ) ROM_SYSTEM_BIOS( 0, "212", "v 2.1.2" ) ROMX_LOAD( "tim 100kg v.2.1.2.u12", 0x0000, 0x0800, CRC(faf5743c) SHA1(310b662e9535878210f8aaab3e2b846fade60642),ROM_BIOS(1)) ROM_CONTINUE (0x1000, 0x0800) ROM_CONTINUE (0x0800, 0x0800) ROM_CONTINUE (0x1800, 0x0800) ROM_SYSTEM_BIOS( 1, "220", "v 2.2.0" ) ROMX_LOAD( "tim 100kg v.2.2.0.u12", 0x0000, 0x0800, CRC(358dbbd3) SHA1(14b7d6ee41b19bedf2f070f5b28b03aaff2cac4f),ROM_BIOS(2)) ROM_CONTINUE (0x1000, 0x0800) ROM_CONTINUE (0x0800, 0x0800) ROM_CONTINUE (0x1800, 0x0800) ROM_END /* Driver */ COMP( 1985, tim100, 0, 0, tim100, tim100, driver_device, 0, "Mihajlo Pupin Institute", "TIM-100", GAME_IS_SKELETON)