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Diffstat (limited to 'src/mame/drivers/fidel_cc1.cpp')
-rw-r--r-- | src/mame/drivers/fidel_cc1.cpp | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/src/mame/drivers/fidel_cc1.cpp b/src/mame/drivers/fidel_cc1.cpp deleted file mode 100644 index cfee2fdda67..00000000000 --- a/src/mame/drivers/fidel_cc1.cpp +++ /dev/null @@ -1,221 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:hap -// thanks-to:Berger, Sean Riddle -/****************************************************************************** -* -* fidel_cc1.cpp, subdriver of machine/fidelbase.cpp, machine/chessbase.cpp - -Fidelity's 1st generation chess computers: -- *Chess Challenger -- *Chess Challenger 3 -- *Chess Challenger 10 (UCC10) - -* denotes not dumped (actually CC1 is dumped, but with half of the contents missing) - -TODO: -- driver is untested, but it should be easy to get working when a good dump - shows up (or a rom of CC3, even) - -******************************************************************************* - -Chess Challenger (1) --------------------- -This is the world's 1st released dedicated chess computer. Oddly, the rows/columns -are reversed: left to right is 1-8, bottom to top is A-H, eg. pawn from D2 to D4 -is 4B to 4D here. - -PCB label PC-P-86, P179 C-2 7.77 -NEC 8080AF @ 2MHz(18MHz XTAL through a 8224) -Everything goes via a NEC B8228, its special features are unused. -NEC 2316A ROM(2KB), 4*2101AL RAM(0.5KB total) -8255C for I/O, 4*7seg display + 2 extra leds, 12-key keypad - -Chess Challenger 3 is on the same hardware, but with double ROM size, and they -corrected the reversed chess notation. It was also offered as an upgrade to CC1. - -Chess Challenger 10 version 'C'(model UCC10) is on (nearly) the same PCB too, -label P179 C-3 9.77, with a small daughterboard for 8KB ROM. Again, it was also -offered as an upgrade to CC1, or CC3. - -******************************************************************************/ - -#include "emu.h" -#include "includes/fidelbase.h" - -#include "cpu/i8085/i8085.h" -#include "machine/i8255.h" - -// internal artwork -#include "fidel_cc1.lh" // clickable - - -namespace { - -class cc1_state : public fidelbase_state -{ -public: - cc1_state(const machine_config &mconfig, device_type type, const char *tag) : - fidelbase_state(mconfig, type, tag), - m_ppi8255(*this, "ppi8255"), - m_delay(*this, "delay") - { } - - // machine drivers - void cc1(machine_config &config); - -private: - // devices/pointers - required_device<i8255_device> m_ppi8255; - optional_device<timer_device> m_delay; - - // address maps - void main_map(address_map &map); - void main_io(address_map &map); - - // I/O handlers - void prepare_display(); - DECLARE_READ8_MEMBER(ppi_porta_r); - DECLARE_WRITE8_MEMBER(ppi_portb_w); - DECLARE_WRITE8_MEMBER(ppi_portc_w); -}; - - -/****************************************************************************** - Devices, I/O -******************************************************************************/ - -// misc handlers - -void cc1_state::prepare_display() -{ - // 4 7segs + 2 leds - set_display_segmask(0xf, 0x7f); - display_matrix(7, 6, m_7seg_data, m_led_select); -} - - -// I8255 PPI - -READ8_MEMBER(cc1_state::ppi_porta_r) -{ - // 74148(priority encoder) I0-I7: inputs - // d0-d2: 74148 S0-S2, d3: 74148 GS - u8 data = count_leading_zeros(m_inp_matrix[0]->read()) - 24; - - // d5-d7: more inputs (direct) - data |= ~m_inp_matrix[1]->read() << 5 & 0xe0; - - // d4: 555 Q - return data | ((m_delay->enabled()) ? 0x10 : 0); -} - -WRITE8_MEMBER(cc1_state::ppi_portb_w) -{ - // d0-d6: digit segment data - m_7seg_data = bitswap<7>(data,0,1,2,3,4,5,6); - prepare_display(); -} - -WRITE8_MEMBER(cc1_state::ppi_portc_w) -{ - // d6: trigger monostable 555 (R=15K, C=1uF) - if (~data & m_led_select & 0x40 && !m_delay->enabled()) - m_delay->adjust(attotime::from_msec(17)); - - // d0-d3: digit select - // d4: check led, d5: lose led - m_led_select = data; - prepare_display(); -} - - - -/****************************************************************************** - Address Maps -******************************************************************************/ - -void cc1_state::main_map(address_map &map) -{ - map.global_mask(0x1fff); - map(0x0000, 0x0fff).rom(); - map(0x1000, 0x11ff).mirror(0x0e00).ram(); -} - -void cc1_state::main_io(address_map &map) -{ - map.global_mask(0x0f); - map(0x00, 0x03).mirror(0x04).rw(m_ppi8255, FUNC(i8255_device::read), FUNC(i8255_device::write)); -} - - - -/****************************************************************************** - Input Ports -******************************************************************************/ - -static INPUT_PORTS_START( cc1 ) - PORT_START("IN.0") - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("1") PORT_CODE(KEYCODE_1) - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("2") PORT_CODE(KEYCODE_2) - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("3") PORT_CODE(KEYCODE_3) - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("4") PORT_CODE(KEYCODE_4) - PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("5") PORT_CODE(KEYCODE_5) - PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("6") PORT_CODE(KEYCODE_6) - PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("7") PORT_CODE(KEYCODE_7) - PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("8") PORT_CODE(KEYCODE_8) - - PORT_START("IN.1") - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("9") PORT_CODE(KEYCODE_9) - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("0") PORT_CODE(KEYCODE_0) - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) - - PORT_START("RESET") - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("RE") PORT_CODE(KEYCODE_R) PORT_CHANGED_MEMBER(DEVICE_SELF, cc1_state, reset_button, nullptr) -INPUT_PORTS_END - - - -/****************************************************************************** - Machine Drivers -******************************************************************************/ - -void cc1_state::cc1(machine_config &config) -{ - /* basic machine hardware */ - I8080A(config, m_maincpu, 18_MHz_XTAL/9); - m_maincpu->set_addrmap(AS_PROGRAM, &cc1_state::main_map); - m_maincpu->set_addrmap(AS_IO, &cc1_state::main_io); - - I8255(config, m_ppi8255); - m_ppi8255->in_pa_callback().set(FUNC(cc1_state::ppi_porta_r)); - m_ppi8255->out_pb_callback().set(FUNC(cc1_state::ppi_portb_w)); - m_ppi8255->tri_pb_callback().set_constant(0); - m_ppi8255->out_pc_callback().set(FUNC(cc1_state::ppi_portc_w)); - - TIMER(config, "delay").configure_generic(timer_device::expired_delegate()); - - TIMER(config, "display_decay").configure_periodic(FUNC(cc1_state::display_decay_tick), attotime::from_msec(1)); - config.set_default_layout(layout_fidel_cc1); -} - - - -/****************************************************************************** - ROM Definitions -******************************************************************************/ - -ROM_START( cc1 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD( "d2316ac_011", 0x0000, 0x0800, BAD_DUMP CRC(e27f9816) SHA1(ad9881b3bf8341829a27e86de27805fc2ccb5f7d) ) // A4 line was broken -ROM_END - -} // anonymous namespace - - - -/****************************************************************************** - Drivers -******************************************************************************/ - -// YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS -CONS( 1977, cc1, 0, 0, cc1, cc1, cc1_state, empty_init, "Fidelity Electronics", "Chess Challenger", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_NO_SOUND_HW | MACHINE_NOT_WORKING ) |