// license:MAME
// 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", GAME_NO_SOUND_HW)