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Diffstat (limited to 'src/mame/drivers/savia84.cpp')
-rw-r--r-- | src/mame/drivers/savia84.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/mame/drivers/savia84.cpp b/src/mame/drivers/savia84.cpp new file mode 100644 index 00000000000..99949af89cd --- /dev/null +++ b/src/mame/drivers/savia84.cpp @@ -0,0 +1,201 @@ +// license:BSD-3-Clause +// copyright-holders:Robbbert +/*************************************************************************** + + Savia 84 + + More data at : + http://www.nostalcomp.cz/pdfka/savia84.pdf + http://www.nostalcomp.cz/savia.php + + 05/02/2011 Skeleton driver. + 11/10/2011 Found a new rom. Working [Robbbert] + + I assume all the LEDs are red ones. The LEDs down the + left side I assume to be bit 0 through 7 in that order. + + Pasting: + 0-F : as is + DA : ^ + AD : - + GO : X + + Here is a test program. Copy the text and Paste into the emulator. + -1800^3E^55^D3^F9^76^XX1800^ + + ToDo: + - Make better artwork + +****************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "machine/i8255.h" +#include "savia84.lh" + + +class savia84_state : public driver_device +{ +public: + savia84_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_ppi8255(*this, "ppi8255") + { } + + required_device<cpu_device> m_maincpu; + required_device<i8255_device> m_ppi8255; + DECLARE_READ8_MEMBER(savia84_8255_portc_r); + DECLARE_WRITE8_MEMBER(savia84_8255_porta_w); + DECLARE_WRITE8_MEMBER(savia84_8255_portb_w); + DECLARE_WRITE8_MEMBER(savia84_8255_portc_w); + UINT8 m_kbd; + UINT8 m_segment; + UINT8 m_digit; + UINT8 m_digit_last; + virtual void machine_reset(); +}; + +static ADDRESS_MAP_START( savia84_mem, AS_PROGRAM, 8, savia84_state ) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0x7fff) // A15 not connected at the CPU + AM_RANGE(0x0000, 0x07ff) AM_ROM + AM_RANGE(0x1800, 0x1fff) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START( savia84_io, AS_IO, 8, savia84_state ) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0x07) + AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("ppi8255", i8255_device, read, write) // ports F8-FB +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( savia84 ) + PORT_START("X0") + PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') + + PORT_START("X1") + PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') + + PORT_START("X2") + PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') + + PORT_START("X3") + PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Ex") PORT_CODE(KEYCODE_X) PORT_CHAR('X') + + PORT_START("X4") + PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BR") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') + + PORT_START("X5") + PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) + 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_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') + + PORT_START("X6") + PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') + + PORT_START("X7") + PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') + + PORT_START("X8") + PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DA") PORT_CODE(KEYCODE_UP) PORT_CHAR('^') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') +INPUT_PORTS_END + + +void savia84_state::machine_reset() +{ + m_digit_last = 0; +} + +WRITE8_MEMBER( savia84_state::savia84_8255_porta_w ) // OUT F8 - output segments on the selected digit +{ + m_segment = ~data & 0x7f; + if (m_digit && (m_digit != m_digit_last)) output_set_digit_value(m_digit, m_segment); + m_digit_last = m_digit; +} + +WRITE8_MEMBER( savia84_state::savia84_8255_portb_w ) // OUT F9 - light the 8 leds down the left side +{ + char ledname[8]; + for (int i = 0; i < 8; i++) + { + sprintf(ledname,"led%d",i); + output_set_value(ledname, !BIT(data, i)); + } +} + +WRITE8_MEMBER( savia84_state::savia84_8255_portc_w ) // OUT FA - set keyboard scanning row; set digit to display +{ + m_digit = 0; + m_kbd = data & 15; + if (m_kbd == 0) + m_digit = 1; + else + if ((m_kbd > 1) && (m_kbd < 9)) + m_digit = m_kbd; +} + +READ8_MEMBER( savia84_state::savia84_8255_portc_r ) // IN FA - read keyboard +{ + if (m_kbd < 9) + { + char kbdrow[6]; + sprintf(kbdrow,"X%d",m_kbd); + return ioport(kbdrow)->read(); + } + else + return 0xff; +} + +static MACHINE_CONFIG_START( savia84, savia84_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz / 2) + MCFG_CPU_PROGRAM_MAP(savia84_mem) + MCFG_CPU_IO_MAP(savia84_io) + + /* video hardware */ + MCFG_DEFAULT_LAYOUT(layout_savia84) + + /* Devices */ + MCFG_DEVICE_ADD("ppi8255", I8255, 0) + MCFG_I8255_OUT_PORTA_CB(WRITE8(savia84_state, savia84_8255_porta_w)) + MCFG_I8255_OUT_PORTB_CB(WRITE8(savia84_state, savia84_8255_portb_w)) + MCFG_I8255_IN_PORTC_CB(READ8(savia84_state, savia84_8255_portc_r)) + MCFG_I8255_OUT_PORTC_CB(WRITE8(savia84_state, savia84_8255_portc_w)) + +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( savia84 ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD("savia84.bin", 0x0000, 0x0800, CRC(fa8f1fcf) SHA1(b08404469ed988d96c0413416b6a66f3e5b997a3)) + + // Note - the below is a bad dump and does not work + //ROM_LOAD("savia84_1kb.bin", 0x0000, 0x0400, CRC(23a5c15e) SHA1(7e769ed8960d8c591a25cfe4effffcca3077c94b)) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1984, savia84, 0, 0, savia84, savia84, driver_device, 0, "JT Hyan", "Savia 84", MACHINE_NO_SOUND_HW) |