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mame/src/mess/drivers/amico2k.c
Fabio Priuli a2bdecb071 converted i8255 to devcb2. nw. 
p.s. I tested several games/systems and I triple checked the diff to be sure I did not 
make any copy and paste mistake in the 195 files touched by this, but let me know 
if any system suddenly stops working!
2014-04-17 05:49:48 +00:00

240 lines
6.8 KiB
C
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/***************************************************************************
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", GAME_NO_SOUND_HW)
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