diff options
Diffstat (limited to 'src/mame/drivers/amico2k.c')
-rw-r--r-- | src/mame/drivers/amico2k.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/src/mame/drivers/amico2k.c b/src/mame/drivers/amico2k.c new file mode 100644 index 00000000000..4a1c9667c51 --- /dev/null +++ b/src/mame/drivers/amico2k.c @@ -0,0 +1,241 @@ +// license:BSD-3-Clause +// copyright-holders:Fabio Priuli, Curt Coder +/*************************************************************************** + + A.S.EL. Amico 2000 + + 07/2009 Skeleton driver. + + IC9 - Monitor PROM, handwritten from book listing by Davide + IC10 - Recorder PROM, yet to be found + IC6/IC7 - PROMs reconstructed by Luigi Serrantoni + + To Do: + * Basically everything, in particular implement PROM (described in details + at the link below) and i8255 + + http://www.computerhistory.it/index.php?option=com_content&task=view&id=85&Itemid=117 + + Pasting: + 0-F : as is + ^ (inc) : ^ + AD : - + DA : = + GO : X + + Test Paste: + =11^22^33^44^55^66^77^88^99^-0000 + Now press up-arrow to confirm the data has been entered. + +****************************************************************************/ + + +#include "emu.h" +#include "cpu/m6502/m6502.h" +#include "machine/i8255.h" +#include "amico2k.lh" + + +class amico2k_state : public driver_device +{ +public: + amico2k_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag) , + m_maincpu(*this, "maincpu") { } + + void machine_start(); + + DECLARE_READ8_MEMBER( ppi_pa_r ); + DECLARE_WRITE8_MEMBER( ppi_pa_w ); + DECLARE_READ8_MEMBER( ppi_pb_r ); + DECLARE_WRITE8_MEMBER( ppi_pb_w ); + + int m_ls145_p; + UINT8 m_segment; + + // timers + emu_timer *m_led_refresh_timer; + TIMER_CALLBACK_MEMBER(led_refresh); + required_device<cpu_device> m_maincpu; +}; + + +static ADDRESS_MAP_START( amico2k_mem, AS_PROGRAM, 8, amico2k_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x03ff) AM_RAM +// AM_RANGE(0x0400, 0x07ff) AM_RAM // optional expansion RAM + AM_RANGE(0xfb00, 0xfcff) AM_ROM + AM_RANGE(0xfd00, 0xfd03) AM_DEVREADWRITE("i8255", i8255_device, read, write) + AM_RANGE(0xfe00, 0xffff) AM_ROM +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( amico2k ) + PORT_START("Q0") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Q1") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Q2") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PC") PORT_CODE(KEYCODE_P) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RUN") PORT_CODE(KEYCODE_X) PORT_CHAR('X') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR('^') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DA") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("AD") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E') + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) +INPUT_PORTS_END + +TIMER_CALLBACK_MEMBER(amico2k_state::led_refresh) +{ + if (m_ls145_p > 3) + { + output_set_digit_value(m_ls145_p - 4, m_segment); + } +} + +READ8_MEMBER( amico2k_state::ppi_pa_r ) +{ + /* + + bit description + + PA0 keyboard data 0 + PA1 keyboard data 1 + PA2 keyboard data 2 + PA3 keyboard data 3 + PA4 keyboard data 4 + PA5 keyboard data 5 + PA6 keyboard data 6 + PA7 reg out + + */ + + switch (m_ls145_p) + { + case 0: return ioport("Q0")->read(); + case 1: return ioport("Q1")->read(); + case 2: return ioport("Q2")->read(); + default: return 0xff; + } +} + +WRITE8_MEMBER( amico2k_state::ppi_pa_w ) +{ + /* + + bit description + + PA0 LED segment A + PA1 LED segment B + PA2 LED segment C + PA3 LED segment D + PA4 LED segment E + PA5 LED segment F + PA6 LED segment G + PA7 + + */ + + m_segment = data; + m_led_refresh_timer->adjust(attotime::from_usec(70)); +} + +READ8_MEMBER( amico2k_state::ppi_pb_r ) +{ + /* + + bit description + + PB0 reg out + PB1 + PB2 + PB3 + PB4 + PB5 + PB6 + PB7 + + */ + + return 0; +} + +WRITE8_MEMBER( amico2k_state::ppi_pb_w ) +{ + /* + + bit description + + PB0 + PB1 LS145 P0 + PB2 LS145 P1 + PB3 LS145 P2 + PB4 LS145 P3 + PB5 reg in + PB6 reg in + PB7 led output enable + + */ + + m_ls145_p = (data >> 1) & 0x0f; +} + +void amico2k_state::machine_start() +{ + m_led_refresh_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(amico2k_state::led_refresh),this)); + + // state saving + save_item(NAME(m_ls145_p)); + save_item(NAME(m_segment)); +} + +static MACHINE_CONFIG_START( amico2k, amico2k_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", M6502, 1000000) /* 1MHz */ + MCFG_CPU_PROGRAM_MAP(amico2k_mem) + + /* video hardware */ + MCFG_DEFAULT_LAYOUT( layout_amico2k ) + + MCFG_DEVICE_ADD("i8255", I8255, 0) + MCFG_I8255_IN_PORTA_CB(READ8(amico2k_state, ppi_pa_r)) + MCFG_I8255_OUT_PORTA_CB(WRITE8(amico2k_state, ppi_pa_w)) + MCFG_I8255_IN_PORTB_CB(READ8(amico2k_state, ppi_pb_r)) + MCFG_I8255_OUT_PORTB_CB(WRITE8(amico2k_state, ppi_pb_w)) +MACHINE_CONFIG_END + + +/* ROM definition */ +// not sure the ROMs are loaded correctly +ROM_START( amico2k ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "prom.ic10", 0xfb00, 0x200, NO_DUMP ) // cassette recorder ROM, not published anywhere. a board is needed! + ROM_LOAD( "prom.ic9", 0xfe00, 0x200, CRC(86449f7c) SHA1(fe7deca86e90ab89aae23f11e9dbaf343b4242dc) ) + + ROM_REGION( 0x200, "proms", ROMREGION_ERASEFF ) + ROM_LOAD( "prom.ic6", 0x000, 0x100, CRC(4005f760) SHA1(7edcd85feb5a576f6da1bbb723b3cf668cf3df45) ) + ROM_LOAD( "prom.ic7", 0x100, 0x100, CRC(8785d864) SHA1(d169c3b5f5690664083030948db9f33571b08656) ) +ROM_END + + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1978, amico2k, 0, 0, amico2k, amico2k, driver_device, 0, "A.S.E.L.", "Amico 2000", MACHINE_NO_SOUND_HW) |