// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** Busicom 141-PF 04/08/2009 Initial driver by Miodrag Milanovic ****************************************************************************/ #include "emu.h" #include "includes/busicom.h" #include "screen.h" uint8_t busicom_state::get_bit_selected(uint32_t val,int num) { int i; for(i=0;iread(); } READ8_MEMBER(busicom_state::printer_r) { uint8_t retVal = 0; if (m_drum_index==0) retVal |= 1; retVal |= ioport("PAPERADV")->read() & 1 ? 8 : 0; return retVal; } WRITE8_MEMBER(busicom_state::shifter_w) { // FIXME: detect edges, maybe make 4003 shifter a device if (BIT(data,0)) { m_keyboard_shifter <<= 1; m_keyboard_shifter |= BIT(data,1); } if (BIT(data,2)) { m_printer_shifter <<= 1; m_printer_shifter |= BIT(data,1); } } WRITE8_MEMBER(busicom_state::printer_w) { int i,j; if (BIT(data,0)) { logerror("color : %02x %02x %d\n",BIT(data,0),data,m_drum_index); m_printer_line_color[10] = 1; } if (BIT(data,1)) { for(i=3;i<18;i++) { if(BIT(m_printer_shifter,i)) { m_printer_line[10][i-3] = m_drum_index + 1; } } if(BIT(m_printer_shifter,0)) { m_printer_line[10][15] = m_drum_index + 13 + 1; } if(BIT(m_printer_shifter,1)) { m_printer_line[10][16] = m_drum_index + 26 + 1; } } if (BIT(data,3)) { for(j=0;j<10;j++) { for(i=0;i<17;i++) { m_printer_line[j][i] = m_printer_line[j+1][i]; m_printer_line_color[j] = m_printer_line_color[j+1]; } } for(i=0;i<17;i++) { m_printer_line[10][i] = 0; } m_printer_line_color[10] = 0; } } WRITE8_MEMBER(busicom_state::status_w) { #if 0 uint8_t mem_lamp = BIT(data,0); uint8_t over_lamp = BIT(data,1); uint8_t minus_lamp = BIT(data,2); #endif //logerror("status %c %c %c\n",mem_lamp ? 'M':'x',over_lamp ? 'O':'x',minus_lamp ? '-':'x'); } WRITE8_MEMBER(busicom_state::printer_ctrl_w) { } void busicom_state::busicom_rom(address_map &map) { map.unmap_value_high(); map(0x0000, 0x04FF).rom().region("maincpu", 0); } void busicom_state::busicom_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x07F).ram(); } void busicom_state::busicom_stat(address_map &map) { map.unmap_value_high(); map(0x0000, 0x01F).ram(); } void busicom_state::busicom_rp(address_map &map) { map.unmap_value_high(); map(0x0000, 0x000f).mirror(0x0700).w(this, FUNC(busicom_state::shifter_w)); // ROM0 I/O map(0x0010, 0x001f).mirror(0x0700).rw(this, FUNC(busicom_state::keyboard_r), FUNC(busicom_state::printer_ctrl_w)); // ROM1 I/O map(0x0020, 0x002f).mirror(0x0700).r(this, FUNC(busicom_state::printer_r)); // ROM2 I/O } void busicom_state::busicom_mp(address_map &map) { map(0x00, 0x00).w(this, FUNC(busicom_state::printer_w)); // RAM0 output map(0x01, 0x01).w(this, FUNC(busicom_state::status_w)); // RAM1 output } /* Input ports */ static INPUT_PORTS_START( busicom ) PORT_START("LINE0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CM") PORT_CODE(KEYCODE_1) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RM") PORT_CODE(KEYCODE_2) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M-") PORT_CODE(KEYCODE_3) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M+") PORT_CODE(KEYCODE_4) PORT_START("LINE1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SQRT") PORT_CODE(KEYCODE_S) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("%") PORT_CODE(KEYCODE_5) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M=-") PORT_CODE(KEYCODE_6) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M=+") PORT_CODE(KEYCODE_7) PORT_START("LINE2") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("diamond") PORT_CODE(KEYCODE_D) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("*") PORT_CODE(KEYCODE_ASTERISK) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_ENTER_PAD) PORT_START("LINE3") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS_PAD) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+") PORT_CODE(KEYCODE_PLUS_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("diamond 2") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("000") PORT_CODE(KEYCODE_8) PORT_START("LINE4") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9_PAD) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3_PAD) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_DEL_PAD) PORT_START("LINE5") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8_PAD) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2_PAD) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("00") PORT_CODE(KEYCODE_9) PORT_START("LINE6") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7_PAD) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1_PAD) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0_PAD) PORT_START("LINE7") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Sign") PORT_CODE(KEYCODE_RALT) PORT_CODE(KEYCODE_LALT) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("EX") PORT_CODE(KEYCODE_X) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CE") PORT_CODE(KEYCODE_E) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_START("LINE8") PORT_CONFNAME( 0x0f, 0x00, "Digital point") PORT_CONFSETTING( 0x00, "0" ) PORT_CONFSETTING( 0x01, "1" ) PORT_CONFSETTING( 0x02, "2" ) PORT_CONFSETTING( 0x03, "3" ) PORT_CONFSETTING( 0x04, "4" ) PORT_CONFSETTING( 0x05, "5" ) PORT_CONFSETTING( 0x06, "6" ) PORT_CONFSETTING( 0x08, "8" ) PORT_START("LINE9") PORT_CONFNAME( 0x0f, 0x00, "Rounding") PORT_CONFSETTING( 0x01, "/N" ) PORT_CONFSETTING( 0x00, "FL" ) PORT_CONFSETTING( 0x08, "5/4" ) PORT_START("PAPERADV") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Paper adv.") PORT_CODE(KEYCODE_SPACE) INPUT_PORTS_END TIMER_DEVICE_CALLBACK_MEMBER(busicom_state::timer_callback) { m_timer ^= 1; if (m_timer == 1) m_drum_index++; if (m_drum_index == 13) m_drum_index = 0; m_maincpu->set_input_line(I4004_TEST_LINE, m_timer); } void busicom_state::machine_start() { } void busicom_state::machine_reset() { int i,j; m_drum_index =0; m_keyboard_shifter = 0; m_printer_shifter = 0; for(i=0;i<17;i++) { for(j=0;j<11;j++) { m_printer_line[j][i] = 0; m_printer_line_color[j] = 0; } } } //static const char layout_busicom [] = "busicom"; MACHINE_CONFIG_START(busicom_state::busicom) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", I4004, 750000) MCFG_I4004_ROM_MAP(busicom_rom) MCFG_I4004_RAM_MEMORY_MAP(busicom_mem) MCFG_I4004_ROM_PORTS_MAP(busicom_rp) MCFG_I4004_RAM_STATUS_MAP(busicom_stat) MCFG_I4004_RAM_PORTS_MAP(busicom_mp) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(40*17, 44*11) MCFG_SCREEN_VISIBLE_AREA(0, 40*17-1, 0, 44*11-1) MCFG_SCREEN_UPDATE_DRIVER(busicom_state, screen_update_busicom) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 16) MCFG_PALETTE_INIT_OWNER(busicom_state, busicom) MCFG_TIMER_DRIVER_ADD_PERIODIC("busicom_timer", busicom_state, timer_callback, attotime::from_msec(28*2)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( busicom ) ROM_REGION( 0x1000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "busicom.l01", 0x0000, 0x0100, CRC(51ae2513) SHA1(5cb4097a3945db35af4ed64b629b20b08fc9824f)) ROM_LOAD( "busicom.l02", 0x0100, 0x0100, CRC(a05411ad) SHA1(81503a99a0d34fa29bf1245de0a44af2f174abdd)) ROM_LOAD( "busicom.l05", 0x0200, 0x0100, CRC(6120addf) SHA1(4b7ec183613630120b3c313c782122713d4327c5)) ROM_LOAD( "busicom.l07", 0x0300, 0x0100, CRC(84a90daa) SHA1(e2931753b0fd35144cb5a9d73fcae8e104e5e3ed)) ROM_LOAD( "busicom.l11", 0x0400, 0x0100, CRC(4d2b2942) SHA1(9a59db76eff084369797735ec19da8cbc70d0d39)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1974, busicom, 0, 0, busicom, busicom, busicom_state, empty_init, "Business Computer Corporation", "Busicom 141-PF", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )