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(nw) mc8020 : replaced hacky keyboard

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This commit is contained in:
Robbbert 2017-11-26 02:57:57 +11:00
parent fcb37e122f
commit 856b3d09df
2 changed files with 64 additions and 52 deletions
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109
src/mame/drivers/mc8020.cpp
View File

@ -1,20 +1,24 @@
// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
// copyright-holders:Miodrag Milanovic, Robbbert
/***************************************************************************
MC-80.20 driver by Miodrag Milanovic
2009-05-12 Skeleton driver.
2009-05-15 Initial implementation
2011-09-01 Modernised, added a keyboard to mc8020
2011-09-01 Modernised, added a keyboard
Real workings of mc8020 keyboard need to be understood and implemented.
ToDo:
- Find out if it has sound hardware, add if so
- What port B on PIO is for
- Find out the correct frequencies and connections for the CTC
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/timer.h"
#include "cpu/z80/z80daisy.h"
#include "machine/clock.h"
#include "machine/z80ctc.h"
#include "machine/z80pio.h"
#include "screen.h"
@ -26,17 +30,19 @@ public:
: driver_device(mconfig, type, tag)
, m_p_videoram(*this, "videoram")
, m_maincpu(*this, "maincpu")
, m_keyboard(*this, "X%u", 0)
{ }
DECLARE_READ8_MEMBER(mc80_port_b_r);
DECLARE_READ8_MEMBER(mc80_port_a_r);
DECLARE_READ8_MEMBER(port_b_r);
DECLARE_WRITE8_MEMBER(port_a_w);
DECLARE_WRITE8_MEMBER(port_b_w);
uint32_t screen_update_mc8020(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
TIMER_DEVICE_CALLBACK_MEMBER(mc8020_kbd);
IRQ_CALLBACK_MEMBER(mc8020_irq_callback);
private:
u8 m_row;
required_shared_ptr<u8> m_p_videoram;
required_device<cpu_device> m_maincpu;
required_ioport_array<7> m_keyboard;
};
static ADDRESS_MAP_START( mem_map, AS_PROGRAM, 8, mc8020_state )
@ -51,13 +57,13 @@ static ADDRESS_MAP_START( io_map, AS_IO, 8, mc8020_state )
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0xf0, 0xf3) AM_DEVREADWRITE("ctc", z80ctc_device, read, write)
AM_RANGE(0xf4, 0xf7) AM_DEVREADWRITE("pio", z80pio_device, read, write)
AM_RANGE(0xf4, 0xf7) AM_DEVREADWRITE("pio", z80pio_device, read_alt, write_alt)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( mc8020 )
PORT_START("X1")
PORT_START("X0")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('!')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('@')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('#')
@ -67,7 +73,7 @@ static INPUT_PORTS_START( mc8020 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('\'')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('(')
PORT_START("X2")
PORT_START("X1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('0') PORT_CHAR('\"')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('+') PORT_CHAR('*')
@ -77,7 +83,7 @@ static INPUT_PORTS_START( mc8020 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('/')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_START("X3")
PORT_START("X2")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
@ -87,7 +93,7 @@ static INPUT_PORTS_START( mc8020 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G')
PORT_START("X4")
PORT_START("X3")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('H')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J')
@ -97,7 +103,7 @@ static INPUT_PORTS_START( mc8020 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('N')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O')
PORT_START("X5")
PORT_START("X4")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R')
@ -107,7 +113,7 @@ static INPUT_PORTS_START( mc8020 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W')
PORT_START("X6")
PORT_START("X5")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
@ -117,7 +123,7 @@ static INPUT_PORTS_START( mc8020 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_START("X7")
PORT_START("X6")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
@ -129,30 +135,39 @@ static INPUT_PORTS_START( mc8020 )
INPUT_PORTS_END
TIMER_DEVICE_CALLBACK_MEMBER( mc8020_state::mc8020_kbd )
READ8_MEMBER( mc8020_state::port_b_r )
{
address_space &mem = m_maincpu->space(AS_PROGRAM);
char kbdrow[6];
for (u8 i = 1; i < 8; i++)
{
sprintf(kbdrow,"X%X", i);
mem.write_word(0xd20+i, ioport(kbdrow)->read());
}
if (m_row == 0x40)
return m_keyboard[0]->read();
else
if (m_row == 0x20)
return m_keyboard[1]->read();
else
if (m_row == 0x10)
return m_keyboard[2]->read();
else
if (m_row == 0x08)
return m_keyboard[3]->read();
else
if (m_row == 0x04)
return m_keyboard[4]->read();
else
if (m_row == 0x02)
return m_keyboard[5]->read();
else
if (m_row == 0x01)
return m_keyboard[6]->read();
else
return 0;
}
IRQ_CALLBACK_MEMBER(mc8020_state::mc8020_irq_callback)
WRITE8_MEMBER( mc8020_state::port_a_w )
{
return 0x00;
m_row = data;
}
READ8_MEMBER( mc8020_state::mc80_port_b_r )
WRITE8_MEMBER( mc8020_state::port_b_w )
{
return 0;
}
READ8_MEMBER( mc8020_state::mc80_port_a_r )
{
return 0;
}
@ -268,12 +283,18 @@ uint32_t mc8020_state::screen_update_mc8020(screen_device &screen, bitmap_ind16
return 0;
}
static const z80_daisy_config daisy_chain[] =
{
{ "ctc" },
{ nullptr }
};
static MACHINE_CONFIG_START( mc8020 )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80, XTAL_2_4576MHz)
MCFG_CPU_PROGRAM_MAP(mem_map)
MCFG_CPU_IO_MAP(io_map)
MCFG_CPU_IRQ_ACKNOWLEDGE_DRIVER(mc8020_state, mc8020_irq_callback)
MCFG_Z80_DAISY_CHAIN(daisy_chain)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
@ -288,19 +309,17 @@ static MACHINE_CONFIG_START( mc8020 )
/* devices */
MCFG_DEVICE_ADD("pio", Z80PIO, XTAL_2_4576MHz)
MCFG_Z80PIO_IN_PA_CB(READ8(mc8020_state, mc80_port_a_r))
//MCFG_Z80PIO_OUT_PA_CB(WRITE8(mc8020_state, mc80_port_a_w))
MCFG_Z80PIO_IN_PB_CB(READ8(mc8020_state, mc80_port_b_r))
//MCFG_Z80PIO_OUT_PB_CB(WRITE8(mc8020_state, mc80_port_b_w))
MCFG_Z80PIO_OUT_PA_CB(WRITE8(mc8020_state, port_a_w))
MCFG_Z80PIO_IN_PB_CB(READ8(mc8020_state, port_b_r))
MCFG_Z80PIO_OUT_PB_CB(WRITE8(mc8020_state, port_b_w))
MCFG_DEVICE_ADD("ctc", Z80CTC, XTAL_2_4576MHz / 100)
MCFG_DEVICE_ADD("ctc_clock", CLOCK, XTAL_2_4576MHz / 64) // guess
MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("ctc", z80ctc_device, trg2))
MCFG_DEVICE_ADD("ctc", Z80CTC, XTAL_2_4576MHz)
MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
//MCFG_Z80CTC_ZC0_CB(WRITELINE(mc8020_state, ctc_z0_w))
//MCFG_Z80CTC_ZC1_CB(WRITELINE(mc8020_state, ctc_z1_w))
MCFG_Z80CTC_ZC2_CB(DEVWRITELINE("ctc", z80ctc_device, trg0))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("ctc", z80ctc_device, trg1))
MCFG_TIMER_DRIVER_ADD_PERIODIC("mc8020_kbd", mc8020_state, mc8020_kbd, attotime::from_hz(50))
MCFG_Z80CTC_ZC2_CB(DEVWRITELINE("ctc", z80ctc_device, trg1))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("ctc", z80ctc_device, trg0))
MACHINE_CONFIG_END

7
src/mame/drivers/mc8030.cpp
View File

@ -49,7 +49,6 @@ public:
DECLARE_WRITE8_MEMBER(asp_port_a_w);
DECLARE_WRITE8_MEMBER(asp_port_b_w);
uint32_t screen_update_mc8030(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
IRQ_CALLBACK_MEMBER(irq_callback);
private:
required_region_ptr<u8> m_p_videoram;
@ -115,11 +114,6 @@ WRITE8_MEMBER( mc8030_state::eprom_prog_w )
{
}
IRQ_CALLBACK_MEMBER(mc8030_state::irq_callback )
{
return 0x20;
}
READ8_MEMBER( mc8030_state::zve_port_a_r )
{
return 0xff;
@ -188,7 +182,6 @@ static MACHINE_CONFIG_START( mc8030 )
MCFG_CPU_PROGRAM_MAP(mem_map)
MCFG_CPU_IO_MAP(io_map)
MCFG_Z80_DAISY_CHAIN(daisy_chain)
MCFG_CPU_IRQ_ACKNOWLEDGE_DRIVER(mc8030_state, irq_callback)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)