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|
// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic , Robbbert
/*************************************************************************************
Robotron Z9001 (KC85/1)
2009-05-12 Skeleton driver.
2011-07-13 Notes added. You can enter text via terminal input.
Colour and flashing added.
2019-06-13 Basic enabled
All input should be in UPPER case.
For KC87_10/11/20/21, type BASIC to start Basic.
The only other kind of acceptable input is a filename that is in 8.3 format and
begins with a letter. It will say 'start tape'. You can press ^C here to
escape, or any key to continue.
Some other control keys:
^B clear input line
^C break
^F toggle flashing attribute
^H backspace
^L clear screen
ToDo:
- cassette in - interrupt-driven via PIO1
via astb should cause interrupt but nothing happens.
- proper keyboard - interrupt-driven via PIO2
pressing any key should program ctc/2 to a debounce delay and this then causes
another interrupt which reads keyboard and places ascii character at 0x0025.
- get rid of temporary code
**************************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/z80daisy.h"
#include "imagedev/cassette.h"
#include "machine/timer.h"
#include "machine/z80ctc.h"
#include "machine/z80pio.h"
#include "sound/beep.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
// temporary
#include "machine/keyboard.h"
namespace {
class z9001_state : public driver_device
{
public:
z9001_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_rom(*this, "maincpu")
, m_ram(*this, "mainram")
, m_beeper(*this, "beeper")
, m_cass(*this, "cassette")
, m_p_colorram(*this, "colorram")
, m_p_videoram(*this, "videoram")
, m_p_chargen(*this, "chargen")
{
}
void z9001(machine_config &config);
private:
void kbd_put(u8 data);
void port88_w(uint8_t data);
DECLARE_WRITE_LINE_MEMBER(cass_w);
TIMER_DEVICE_CALLBACK_MEMBER(timer_callback);
uint32_t screen_update_z9001(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void io_map(address_map &map);
void mem_map(address_map &map);
uint8_t m_framecnt = 0U;
bool m_cassbit = 0;
virtual void machine_reset() override;
virtual void machine_start() override;
memory_passthrough_handler m_rom_shadow_tap;
required_device<z80_device> m_maincpu;
required_region_ptr<u8> m_rom;
required_shared_ptr<u8> m_ram;
required_device<beep_device> m_beeper;
required_device<cassette_image_device> m_cass;
required_shared_ptr<uint8_t> m_p_colorram;
required_shared_ptr<uint8_t> m_p_videoram;
required_region_ptr<u8> m_p_chargen;
};
void z9001_state::mem_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0xe7ff).ram().share("mainram");
map(0xc000, 0xe7ff).rom().region("maincpu",0x1000);
map(0xe800, 0xebff).ram().share("colorram");
map(0xec00, 0xefff).ram().share("videoram");
map(0xf000, 0xffff).rom().region("maincpu",0);
}
void z9001_state::io_map(address_map &map)
{
map.unmap_value_high();
map.global_mask(0xff);
map(0x80, 0x83).mirror(4).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
map(0x88, 0x8B).mirror(4).rw("pio1", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
map(0x90, 0x93).mirror(4).rw("pio2", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
}
/* Input ports */
static INPUT_PORTS_START( z9001 )
INPUT_PORTS_END
static const z80_daisy_config z9001_daisy_chain[] =
{
{ "pio2" },
{ "pio1" },
{ "ctc" },
{ nullptr }
};
//Bits0,1 not connected; 2,3,4,5 go to a connector; 6 goes to 'graphics' LED; 7 goes to speaker.
void z9001_state::port88_w(uint8_t data)
{
m_beeper->set_state(BIT(data, 7));
}
WRITE_LINE_MEMBER( z9001_state::cass_w )
{
if (state)
{
m_cassbit ^= 1;
m_cass->output( m_cassbit ? -1.0 : +1.0);
}
}
// temporary (prevent freezing when you type an invalid filename)
TIMER_DEVICE_CALLBACK_MEMBER(z9001_state::timer_callback)
{
m_maincpu->space(AS_PROGRAM).write_byte(0x006a, 0);
}
void z9001_state::machine_reset()
{
address_space &program = m_maincpu->space(AS_PROGRAM);
program.install_rom(0x0000, 0x0fff, m_rom); // do it here for F3
m_rom_shadow_tap.remove();
m_rom_shadow_tap = program.install_read_tap(
0xf000, 0xffff,
"rom_shadow_r",
[this] (offs_t offset, u8 &data, u8 mem_mask)
{
if (!machine().side_effects_disabled())
{
// delete this tap
m_rom_shadow_tap.remove();
// reinstall ram over the rom shadow
m_maincpu->space(AS_PROGRAM).install_ram(0x0000, 0x0fff, m_ram);
}
},
&m_rom_shadow_tap);
}
void z9001_state::machine_start()
{
save_item(NAME(m_framecnt));
save_item(NAME(m_cassbit));
}
uint32_t z9001_state::screen_update_z9001(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
uint16_t sy=0,ma=0;
m_framecnt++;
for (uint8_t y = 0; y < 24; y++ )
{
for (uint8_t ra = 0; ra < 8; ra++)
{
uint16_t *p = &bitmap.pix(sy++);
for (uint16_t x = ma; x < ma + 40; x++)
{
uint8_t chr = m_p_videoram[x]; // get char in videoram
uint8_t gfx = m_p_chargen[(chr<<3) | ra]; // get dot pattern in chargen
uint8_t col = m_p_colorram[x];
uint8_t fg = col>>4;
uint8_t bg = col&15;
/* Check for flashing - swap bg & fg */
if ((BIT(col, 7)) && (m_framecnt & 0x10))
{
bg = fg;
fg = col&15;
}
/* Display a scanline of a character */
*p++ = BIT(gfx, 7) ? fg : bg;
*p++ = BIT(gfx, 6) ? fg : bg;
*p++ = BIT(gfx, 5) ? fg : bg;
*p++ = BIT(gfx, 4) ? fg : bg;
*p++ = BIT(gfx, 3) ? fg : bg;
*p++ = BIT(gfx, 2) ? fg : bg;
*p++ = BIT(gfx, 1) ? fg : bg;
*p++ = BIT(gfx, 0) ? fg : bg;
}
}
ma+=40;
}
return 0;
}
/* F4 Character Displayer */
static const gfx_layout charlayout =
{
8, 8, /* 8 x 8 characters */
1024, /* 4 x 256 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
/* x offsets */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
/* y offsets */
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*8 /* every char takes 8 bytes */
};
void z9001_state::kbd_put(u8 data)
{
m_maincpu->space(AS_PROGRAM).write_byte(0x0025, data);
}
static GFXDECODE_START( gfx_z9001 )
GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
GFXDECODE_END
void z9001_state::z9001(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, XTAL(9'830'400) / 4);
m_maincpu->set_addrmap(AS_PROGRAM, &z9001_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &z9001_state::io_map);
m_maincpu->set_daisy_config(z9001_daisy_chain);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(50);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
screen.set_size(40*8, 24*8);
screen.set_visarea(0, 40*8-1, 0, 24*8-1);
screen.set_screen_update(FUNC(z9001_state::screen_update_z9001));
screen.set_palette("palette");
GFXDECODE(config, "gfxdecode", "palette", gfx_z9001);
PALETTE(config, "palette").set_entries(16);
/* Sound */
SPEAKER(config, "mono").front_center();
BEEP(config, "beeper", 800).add_route(ALL_OUTPUTS, "mono", 0.50);
/* Devices */
generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0));
keyboard.set_keyboard_callback(FUNC(z9001_state::kbd_put));
TIMER(config, "z9001_timer").configure_periodic(FUNC(z9001_state::timer_callback), attotime::from_msec(10));
z80pio_device& pio1(Z80PIO(config, "pio1", XTAL(9'830'400) / 4));
pio1.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
pio1.out_pa_callback().set(FUNC(z9001_state::port88_w));
z80pio_device& pio2(Z80PIO(config, "pio2", XTAL(9'830'400) / 4)); // keyboard PIO
pio2.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
z80ctc_device& ctc(Z80CTC(config, "ctc", XTAL(9'830'400) / 4));
ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
ctc.zc_callback<0>().set(FUNC(z9001_state::cass_w));
ctc.zc_callback<2>().set("ctc", FUNC(z80ctc_device::trg3));
CASSETTE(config, m_cass);
m_cass->add_route(ALL_OUTPUTS, "mono", 0.05);
}
/* ROM definition */
ROM_START( z9001 )
ROM_REGION( 0x3800, "maincpu", 0 )
ROM_SYSTEM_BIOS( 0, "orig", "Original" )
ROMX_LOAD( "os____f0.851", 0x0000, 0x1000, CRC(9fe60a92) SHA1(553609631f5eaa7d6758a73f56c613e280a5b310), ROM_BIOS(0))
ROM_SYSTEM_BIOS( 1, "rb20", "ROM-Bank System without menu" )
ROMX_LOAD( "os_rb20.rom", 0x0000, 0x1000, CRC(c783124d) SHA1(c2893ce5bb23b280ba4e982e860586d21de2469b), ROM_BIOS(1))
ROM_SYSTEM_BIOS( 2, "rb21", "ROM-Bank System with menu" )
ROMX_LOAD( "os_rb21.rom", 0x0000, 0x1000, CRC(11eec2dd) SHA1(5dbb661bdf4daf92d6c4ffbbdec674e57917e9eb), ROM_BIOS(2))
ROM_REGION( 0x2000, "chargen", 0 )
ROM_LOAD( "chargen.851", 0x0000, 0x0800, CRC(dd9c0f4e) SHA1(2e4928ba7161f5cce7173b7d2ded3d6596ae2aa2))
ROM_LOAD( "zg_cga.rom", 0x0800, 0x0800, CRC(697cefb1) SHA1(f57a78a928fe1151b2fedb7f1a93a141195422ff))
ROM_LOAD( "zg_cgai.rom", 0x1000, 0x0800, CRC(ecadf355) SHA1(4d36fefd335903680c45a5e3f38b969d2e9bb621))
ROM_LOAD( "zg_de.rom", 0x1800, 0x0800, CRC(71854b0a) SHA1(912bb7d1f8b4582894125e82da080bd9c3b88f34))
ROM_END
#define rom_kc85_111 rom_z9001
ROM_START( kc87_10 )
ROM_REGION( 0x3800, "maincpu", 0 )
ROM_SYSTEM_BIOS( 0, "orig", "Original" )
ROMX_LOAD( "os____f0.851", 0x0000, 0x1000, CRC(9fe60a92) SHA1(553609631f5eaa7d6758a73f56c613e280a5b310), ROM_BIOS(0))
ROM_SYSTEM_BIOS( 1, "rb20", "ROM-Bank System without menu" )
ROMX_LOAD( "os_rb20.rom", 0x0000, 0x1000, CRC(c783124d) SHA1(c2893ce5bb23b280ba4e982e860586d21de2469b), ROM_BIOS(1))
ROM_SYSTEM_BIOS( 2, "rb21", "ROM-Bank System with menu" )
ROMX_LOAD( "os_rb21.rom", 0x0000, 0x1000, CRC(11eec2dd) SHA1(5dbb661bdf4daf92d6c4ffbbdec674e57917e9eb), ROM_BIOS(2))
ROM_LOAD( "basic_c0.87a", 0x1000, 0x2800, CRC(c508d45e) SHA1(ea85b53e21429c4cb85cdb81b92f278a8f4eb574))
ROM_REGION( 0x2000, "chargen", 0 )
ROM_LOAD( "chargen.851", 0x0000, 0x0800, CRC(dd9c0f4e) SHA1(2e4928ba7161f5cce7173b7d2ded3d6596ae2aa2))
ROM_LOAD( "zg_cga.rom", 0x0800, 0x0800, CRC(697cefb1) SHA1(f57a78a928fe1151b2fedb7f1a93a141195422ff))
ROM_LOAD( "zg_cgai.rom", 0x1000, 0x0800, CRC(ecadf355) SHA1(4d36fefd335903680c45a5e3f38b969d2e9bb621))
ROM_LOAD( "zg_de.rom", 0x1800, 0x0800, CRC(71854b0a) SHA1(912bb7d1f8b4582894125e82da080bd9c3b88f34))
ROM_END
#define rom_kc87_11 rom_kc87_10
ROM_START( kc87_20 )
ROM_REGION( 0x3800, "maincpu", 0 )
ROM_SYSTEM_BIOS( 0, "orig", "Original" )
ROMX_LOAD( "os____f0.87b", 0x0000, 0x1000, CRC(a357d093) SHA1(b1df6b499517c8366a0795030ee800e8a258e938), ROM_BIOS(0))
ROM_SYSTEM_BIOS( 1, "rb20", "ROM-Bank System without menu" )
ROMX_LOAD( "os_rb20.rom", 0x0000, 0x1000, CRC(c783124d) SHA1(c2893ce5bb23b280ba4e982e860586d21de2469b), ROM_BIOS(1))
ROM_SYSTEM_BIOS( 2, "rb21", "ROM-Bank System with menu" )
ROMX_LOAD( "os_rb21.rom", 0x0000, 0x1000, CRC(11eec2dd) SHA1(5dbb661bdf4daf92d6c4ffbbdec674e57917e9eb), ROM_BIOS(2))
ROM_LOAD( "basic_c0.87b", 0x1000, 0x2800, CRC(9e8f6380) SHA1(8ffecc64ba35c953c93738f8568c83dc6af1ae72))
ROM_REGION( 0x2000, "chargen", 0 )
ROM_LOAD( "chargen.851", 0x0000, 0x0800, CRC(dd9c0f4e) SHA1(2e4928ba7161f5cce7173b7d2ded3d6596ae2aa2))
ROM_LOAD( "zg_cga.rom", 0x0800, 0x0800, CRC(697cefb1) SHA1(f57a78a928fe1151b2fedb7f1a93a141195422ff))
ROM_LOAD( "zg_cgai.rom", 0x1000, 0x0800, CRC(ecadf355) SHA1(4d36fefd335903680c45a5e3f38b969d2e9bb621))
ROM_LOAD( "zg_de.rom", 0x1800, 0x0800, CRC(71854b0a) SHA1(912bb7d1f8b4582894125e82da080bd9c3b88f34))
ROM_END
#define rom_kc87_21 rom_kc87_20
} // anonymous namespace
/* Driver */
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1984, z9001, 0, 0, z9001, z9001, z9001_state, empty_init, "Robotron", "Z9001 (KC 85/1.10)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP( 1986, kc85_111, z9001, 0, z9001, z9001, z9001_state, empty_init, "Robotron", "KC 85/1.11", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP( 1987, kc87_10, z9001, 0, z9001, z9001, z9001_state, empty_init, "Robotron", "KC 87.10", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP( 1987, kc87_11, z9001, 0, z9001, z9001, z9001_state, empty_init, "Robotron", "KC 87.11", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP( 1987, kc87_20, z9001, 0, z9001, z9001, z9001_state, empty_init, "Robotron", "KC 87.20", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP( 1987, kc87_21, z9001, 0, z9001, z9001, z9001_state, empty_init, "Robotron", "KC 87.21", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
|