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scorpion.cpp
1055 lines (878 loc) · 37.3 KB
/
scorpion.cpp
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// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
#include "emu.h"
#include "beta_m.h"
#include "spec128.h"
#include "bus/spectrum/zxbus.h"
#include "machine/timer.h"
#include "sound/ay8910.h"
#include "speaker.h"
#define LOG_IO (1U << 1)
#define LOG_MEM (1U << 2)
#define LOG_WARN (1U << 3)
#define VERBOSE ( /*LOG_GENERAL | LOG_IO | LOG_MEM |*/ LOG_WARN )
#include "logmacro.h"
#define LOGIO(...) LOGMASKED(LOG_IO, __VA_ARGS__)
#define LOGMEM(...) LOGMASKED(LOG_MEM, __VA_ARGS__)
#define LOGWARN(...) LOGMASKED(LOG_WARN, __VA_ARGS__)
namespace {
class scorpion_state : public spectrum_128_state
{
public:
scorpion_state(const machine_config &mconfig, device_type type, const char *tag)
: spectrum_128_state(mconfig, type, tag)
, m_bankio(*this, "bankio")
, m_bank0_rom(*this, "bank0_rom")
, m_beta(*this, BETA_DISK_TAG)
, m_ay(*this, "ay%u", 0U)
, m_io_mouse(*this, "mouse_input%u", 1U)
, m_mod_ay(*this, "MOD_AY")
{ }
void scorpion(machine_config &config);
void profi(machine_config &config);
void quorum(machine_config &config);
INPUT_CHANGED_MEMBER(on_nmi);
protected:
static constexpr u8 ROM_PAGE_SYS = 2;
static constexpr u8 ROM_PAGE_DOS = 3;
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
bool dos() const { return m_beta->is_active(); }
bool romram() const { return BIT(m_port_1ffd_data, 0); }
bool rom1() const { return BIT(m_port_7ffd_data, 4); }
void scorpion_io(address_map &map);
void scorpion_mem(address_map &map);
void scorpion_switch(address_map &map);
virtual void scorpion_ioext(address_map &map);
u8 port_ff_r();
void port_7ffd_w(u8 data);
void port_1ffd_w(u8 data);
virtual void ay_address_w(u8 data);
virtual rectangle get_screen_area() override;
virtual void scorpion_update_memory();
virtual void do_nmi();
memory_access<16, 0, 0, ENDIANNESS_LITTLE>::specific m_program;
memory_access<17, 0, 0, ENDIANNESS_LITTLE>::specific m_ioext;
required_device<address_map_bank_device> m_bankio;
memory_view m_bank0_rom;
required_device<beta_disk_device> m_beta;
required_device_array<ay8912_device, 2> m_ay;
u8 m_is_m1_even;
u8 m_nmi_pending;
u8 m_magic_lock;
u8 m_ay_selected;
u8 m_ram_banks;
private:
u8 beta_neutral_r(offs_t offset);
u8 beta_enable_r(offs_t offset);
u8 beta_disable_r(offs_t offset);
INTERRUPT_GEN_MEMBER(scorpion_interrupt);
required_ioport_array<3> m_io_mouse;
required_ioport m_mod_ay;
};
class scorpiontb_state : public scorpion_state
{
public:
scorpiontb_state(const machine_config &mconfig, device_type type, const char *tag)
: scorpion_state(mconfig, type, tag)
{ }
void scorpiontb(machine_config &config);
INPUT_CHANGED_MEMBER(turbo_changed);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
virtual void scorpion_ioext(address_map &map) override;
virtual void ay_address_w(u8 data) override;
virtual void scorpion_update_memory() override;
u8 m_turbo;
u8 m_prof_plane;
private:
u8 ay_data_r();
u8 m_ay_reg;
};
class scorpiongmx_state : public scorpiontb_state
{
public:
scorpiongmx_state(const machine_config &mconfig, device_type type, const char *tag)
: scorpiontb_state(mconfig, type, tag)
, m_io_gmx(*this, "io_gmx")
{ }
void scorpiongmx(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
virtual void scorpion_ioext(address_map &map) override;
void global_cfg_w(u8 data);
u8 port_78fd_r();
u8 port_7afd_r();
u8 port_7efd_r();
void port_7efd_w(u8 data);
virtual void scorpion_update_memory() override;
virtual void spectrum_update_screen(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) override;
virtual rectangle get_screen_area() override;
virtual void do_nmi() override;
memory_view m_io_gmx;
private:
bool fixrom() const { return BIT(m_port_00_data, 4); }
u8 m_magic_shift;
u8 m_gfx_ext = 0;
u8 m_magic_disabled;
u8 m_port_00_data;
u8 m_port_78fd_data;
u8 m_port_7afd_lock_data;
u8 m_scroll_lo;
u8 m_scroll_hi;
u8 m_port_7efd_lock_data;
u8 m_port_dffd_data;
};
/****************************************************************************************************/
/* Zs Scorpion 256 */
/*
port 7ffd. full compatibility with Zx spectrum 128. digits are:
D0-D2 - number of RAM page to put in C000-FFFF
D3 - switch of address for RAM of screen. 0 - 4000, 1 - c000
D4 - switch of ROM : 0-zx128, 1-zx48
D5 - 1 in this bit will block further output in port 7FFD, until reset.
*/
/*
port 1ffd - additional port for resources of computer.
D0 - block of ROM in 0-3fff. when set to 1 - allows read/write page 0 of RAM
D1 - selects ROM expansion. this rom contains main part of service monitor.
D2 - not used
D3 - used for output in RS-232C
D4 - extended RAM. set to 1 - connects RAM page with number 8-15 in
C000-FFFF. number of page is given in gidits D0-D2 of port 7FFD
D5 - signal of strobe for interface centronics. to form the strobe has to be
set to 1.
D6-D7 - not used. ( yet ? )
*/
/* rom 0=zx128, 1=zx48, 2 = service monitor, 3=tr-dos */
void scorpion_state::scorpion_update_memory()
{
if (romram() && !m_nmi_pending)
{
m_bank_ram[0]->set_entry(0);
m_bank0_rom.select(0);
LOGMEM("mem: RAM0(0)");
}
else
{
const u8 rom_page = BIT(m_port_1ffd_data, 1)
? ROM_PAGE_SYS
: (((m_nmi_pending || dos()) << 1) | rom1());
m_bank_rom[0]->set_entry(rom_page);
m_bank0_rom.disable();
LOGMEM("mem: ROM0(%x)", m_bank_rom[0]->entry());
}
m_bank_ram[3]->set_entry(((((m_port_1ffd_data & 0xc0) >> 2) | (m_port_1ffd_data & 0x10) >> 1) | (m_port_7ffd_data & 0x07)) % m_ram_banks);
LOGMEM(", RAM3(%x)\n", m_bank_ram[3]->entry());
}
INTERRUPT_GEN_MEMBER(scorpion_state::scorpion_interrupt)
{
m_irq_on_timer->adjust(m_screen->time_until_pos(get_screen_area().top(), get_screen_area().left()) - m_screen->clocks_to_attotime(14344 * 2));
}
INPUT_CHANGED_MEMBER(scorpion_state::on_nmi)
{
m_nmi_pending = newval;
}
void scorpion_state::do_nmi()
{
m_beta->enable();
scorpion_update_memory();
m_maincpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
m_nmi_pending = 0;
}
u8 scorpion_state::port_ff_r()
{
if (m_magic_lock && !machine().side_effects_disabled())
{
LOGIO("Registers lock released\n");
m_magic_lock = 0;
}
return scorpion_state::floating_bus_r();
}
void scorpion_state::port_7ffd_w(u8 data)
{
/* disable paging */
if (BIT(m_port_7ffd_data, 5))
return;
m_port_7ffd_data = data;
scorpion_update_memory();
m_screen->update_now();
m_screen_location = m_ram->pointer() + ((BIT(m_port_7ffd_data, 3) ? 7 : 5) << 14);
}
void scorpion_state::port_1ffd_w(u8 data)
{
m_port_1ffd_data = data;
scorpion_update_memory();
}
void scorpion_state::ay_address_w(u8 data)
{
if ((m_mod_ay->read() == 1) && ((data & 0xfe) == 0xfe))
m_ay_selected = data & 1;
else
m_ay[m_ay_selected]->address_w(data);
}
u8 scorpion_state::beta_neutral_r(offs_t offset)
{
if (m_is_m1_even && (m_maincpu->total_cycles() & 1)) m_maincpu->eat_cycles(1);
return m_program.read_byte(offset);
}
u8 scorpion_state::beta_enable_r(offs_t offset)
{
if (!machine().side_effects_disabled())
{
if (m_is_m1_even && (m_maincpu->total_cycles() & 1)) m_maincpu->eat_cycles(1);
if (!dos() && rom1())
{
m_beta->enable();
scorpion_update_memory();
}
}
return m_program.read_byte(offset + 0x3d00);
}
u8 scorpion_state::beta_disable_r(offs_t offset)
{
if (!machine().side_effects_disabled())
{
if (m_is_m1_even && (m_maincpu->total_cycles() & 1)) m_maincpu->eat_cycles(1);
if (m_nmi_pending)
{
do_nmi();
}
else if (dos())
{
m_beta->disable();
scorpion_update_memory();
}
}
return m_program.read_byte(offset + 0x4000);
}
void scorpion_state::scorpion_mem(address_map &map)
{
map(0x0000, 0x3fff).bankr(m_bank_rom[0]);
map(0x0000, 0x3fff).view(m_bank0_rom);
m_bank0_rom[0](0x0000, 0x3fff).bankrw(m_bank_ram[0]);
map(0x4000, 0x7fff).bankr(m_bank_ram[1]).w(FUNC(scorpion_state::spectrum_128_ram_w<1>));
map(0x8000, 0xbfff).bankr(m_bank_ram[2]).w(FUNC(scorpion_state::spectrum_128_ram_w<2>));
map(0xc000, 0xffff).bankr(m_bank_ram[3]).w(FUNC(scorpion_state::spectrum_128_ram_w<3>));
}
void scorpion_state::scorpion_ioext(address_map &map)
{
map.unmap_value_high();
map(0x0022, 0x0022).select(0xffdc) // FE | xxxxxxxxxx1xxx10
.rw(FUNC(scorpion_state::spectrum_ula_r), FUNC(scorpion_state::spectrum_ula_w));
map(0x0023, 0x0023).mirror(0xffdc) // FF | xxxxxxxxxx1xxx11
.r(FUNC(scorpion_state::port_ff_r));
map(0x0021, 0x0021).mirror(0x13fdc) // 1FFD | 00xxxxxxxx1xxx01
.w(FUNC(scorpion_state::port_1ffd_w));
map(0x4021, 0x4021).mirror(0x13fdc) // 7FFD | 01xxxxxxxx1xxx01
.w(FUNC(scorpion_state::port_7ffd_w));
map(0xa021, 0xa021).mirror(0x11fdc) // BFFD | 101xxxxxxx1xxx01
.lw8(NAME([this](u8 data) { m_ay[m_ay_selected]->data_w(data); }));
map(0xe021, 0xe021).mirror(0x11fdc) // FFFD | 111xxxxxxx1xxx01
.lr8(NAME([this]() { return m_ay[m_ay_selected]->data_r(); })).w(FUNC(scorpion_state::ay_address_w));
// Mouse
map(0xfadf, 0xfadf).lr8(NAME([this]() -> u8 { return 0x80 | (m_io_mouse[2]->read() & 0x07); }));
map(0xfbdf, 0xfbdf).lr8(NAME([this]() -> u8 { return m_io_mouse[0]->read(); }));
map(0xffdf, 0xffdf).lr8(NAME([this]() -> u8 { return ~m_io_mouse[1]->read(); }));
map(0x0003, 0x0003) // 1F | xxxxxxxx0x0xxx11
.select(0xff5c).lr8(NAME([this]() -> u8 { return (m_beta->state_r() & 0xc0) | 0x00; })); // TODO Kepmston Joystick
// Shadow
// DOS + xxxxxxxx0nnxxx11
map(0x10003, 0x10003).mirror(0xff1c).rw(m_beta, FUNC(beta_disk_device::status_r), FUNC(beta_disk_device::command_w));
map(0x10023, 0x10023).mirror(0xff1c).rw(m_beta, FUNC(beta_disk_device::track_r), FUNC(beta_disk_device::track_w));
map(0x10043, 0x10043).mirror(0xff1c).rw(m_beta, FUNC(beta_disk_device::sector_r), FUNC(beta_disk_device::sector_w));
map(0x10063, 0x10063).mirror(0xff1c).rw(m_beta, FUNC(beta_disk_device::data_r), FUNC(beta_disk_device::data_w));
map(0x100e3, 0x100e3).mirror(0xff1c).rw(m_beta, FUNC(beta_disk_device::state_r), FUNC(beta_disk_device::param_w));
}
void scorpion_state::scorpion_io(address_map &map)
{
map(0x0000, 0xffff).lrw8(
NAME([this](offs_t offset) { return m_ioext.read_byte((dos() << 16) | offset); }),
NAME([this](offs_t offset, u8 data) { m_ioext.write_byte((dos() << 16) | offset, data); }));
}
void scorpion_state::scorpion_switch(address_map &map)
{
map(0x0000, 0x3fff).r(FUNC(scorpion_state::beta_neutral_r)); // Overlap with previous because we want real addresses on the 3e00-3fff range
map(0x3d00, 0x3dff).r(FUNC(scorpion_state::beta_enable_r));
map(0x4000, 0xffff).r(FUNC(scorpion_state::beta_disable_r));
}
void scorpion_state::machine_start()
{
spectrum_128_state::machine_start();
save_item(NAME(m_port_1ffd_data));
save_item(NAME(m_nmi_pending));
save_item(NAME(m_magic_lock));
save_item(NAME(m_ay_selected));
save_item(NAME(m_ram_banks));
m_maincpu->space(AS_PROGRAM).specific(m_program);
m_bankio->space(AS_PROGRAM).specific(m_ioext);
// reconfigure ROMs
memory_region *rom = memregion("maincpu");
m_bank_rom[0]->configure_entries(0, rom->bytes() / 0x4000, rom->base() + 0x10000, 0x4000);
m_ram_banks = m_ram->size() / 0x4000;
m_bank_ram[0]->configure_entries(0, m_ram_banks, m_ram->pointer(), 0x4000);
m_bank_ram[2]->configure_entries(0, m_ram_banks, m_ram->pointer(), 0x4000);
}
void scorpion_state::machine_reset()
{
m_is_m1_even = 1;
m_nmi_pending = 0;
m_magic_lock = 0;
m_ay_selected = 0;
m_beta->disable();
m_port_fe_data = 255;
m_port_7ffd_data = 0;
m_port_1ffd_data = 0;
m_bank_ram[2]->set_entry(2);
scorpion_update_memory();
}
void scorpion_state::video_start()
{
spectrum_state::video_start();
m_screen_location = m_ram->pointer() + (5 << 14);
m_contention_pattern = {};
}
/* F4 Character Displayer */
static const gfx_layout spectrum_charlayout =
{
8, 8, /* 8 x 8 characters */
96, /* 96 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
{STEP8(0, 1)}, /* x offsets */
{STEP8(0, 8)}, /* y offsets */
8*8 /* every char takes 8 bytes */
};
static const gfx_layout quorum_charlayout =
{
8, 8, /* 8 x 8 characters */
160, /* 160 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
{STEP8(0, 1)}, /* x offsets */
{STEP8(0, 8)}, /* y offsets */
8*8 /* every char takes 8 bytes */
};
static const gfx_layout profi_8_charlayout =
{
8, 8, /* 8 x 8 characters */
224, /* 224 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
{STEP8(0, 1)}, /* x offsets */
{STEP8(0, 8)}, /* y offsets */
8*8 /* every char takes 8 bytes */
};
static GFXDECODE_START( gfx_scorpion )
GFXDECODE_ENTRY( "maincpu", 0x17d00, spectrum_charlayout, 7, 8 )
GFXDECODE_END
static GFXDECODE_START( gfx_profi )
GFXDECODE_ENTRY( "maincpu", 0x17d00, spectrum_charlayout, 7, 8 )
GFXDECODE_ENTRY( "maincpu", 0x1abfc, profi_8_charlayout, 7, 8 )
/* There are more characters after this, that haven't been decoded */
GFXDECODE_END
static GFXDECODE_START( gfx_quorum )
GFXDECODE_ENTRY( "maincpu", 0x1fb00, quorum_charlayout, 7, 8 )
GFXDECODE_END
rectangle scorpion_state::get_screen_area()
{
return spectrum_state::get_screen_area();
}
INPUT_PORTS_START( scorpion )
PORT_INCLUDE( spec_plus )
PORT_MODIFY("NMI")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_OTHER) PORT_NAME("NMI") PORT_CODE(KEYCODE_F12) PORT_CHANGED_MEMBER(DEVICE_SELF, scorpion_state, on_nmi, 0)
PORT_START("mouse_input1")
PORT_BIT(0xff, 0, IPT_MOUSE_X) PORT_SENSITIVITY(30)
PORT_START("mouse_input2")
PORT_BIT(0xff, 0, IPT_MOUSE_Y) PORT_SENSITIVITY(30)
PORT_START("mouse_input3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON4) PORT_NAME("Left mouse button") PORT_CODE(MOUSECODE_BUTTON1)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_BUTTON5) PORT_NAME("Right mouse button") PORT_CODE(MOUSECODE_BUTTON2)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_BUTTON6) PORT_NAME("Middle mouse button") PORT_CODE(MOUSECODE_BUTTON3)
PORT_START("MOD_AY")
PORT_CONFNAME(0x01, 0x00, "AY MOD")
PORT_CONFSETTING(0x00, "Single")
PORT_CONFSETTING(0x01, "TurboSound")
INPUT_PORTS_END
void scorpion_state::scorpion(machine_config &config)
{
// Yellow PCB
spectrum(config);
m_ram->set_default_size("256K");
m_maincpu->set_memory_map(&scorpion_state::scorpion_mem);
m_maincpu->set_m1_map(&scorpion_state::scorpion_switch);
m_maincpu->set_io_map(&scorpion_state::scorpion_io);
m_maincpu->set_vblank_int("screen", FUNC(scorpion_state::scorpion_interrupt));
m_maincpu->nomreq_cb().set_nop();
subdevice<gfxdecode_device>("gfxdecode")->set_info(gfx_scorpion);
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
AY8912(config, m_ay[0], 14_MHz_XTAL / 8) // BAC
.add_route(1, "lspeaker", 0.50)
.add_route(0, "lspeaker", 0.25)
.add_route(0, "rspeaker", 0.25)
.add_route(2, "rspeaker", 0.50);
AY8912(config, m_ay[1], 14_MHz_XTAL / 8)
.add_route(1, "lspeaker", 0.50)
.add_route(0, "lspeaker", 0.25)
.add_route(0, "rspeaker", 0.25)
.add_route(2, "rspeaker", 0.50);
BETA_DISK(config, m_beta, 0);
config.device_remove("exp");
ADDRESS_MAP_BANK(config, m_bankio).set_map(&scorpion_state::scorpion_ioext).set_options(ENDIANNESS_LITTLE, 8, 17, 0);
zxbus_device &zxbus(ZXBUS(config, "zxbus", 0));
zxbus.set_iospace(m_bankio, AS_PROGRAM);
ZXBUS_SLOT(config, "zxbus:1", 0, "zxbus", zxbus_cards, nullptr);
ZXBUS_SLOT(config, "zxbus:2", 0, "zxbus", zxbus_cards, nullptr);
}
void scorpion_state::profi(machine_config &config)
{
scorpion(config);
subdevice<gfxdecode_device>("gfxdecode")->set_info(gfx_profi);
}
void scorpion_state::quorum(machine_config &config)
{
scorpion(config);
subdevice<gfxdecode_device>("gfxdecode")->set_info(gfx_quorum);
}
/******************************************************************************
* Scorpion ZS-256 Turbo+
* ***************************************************************************/
void scorpiontb_state::ay_address_w(u8 data)
{
m_ay_reg = data;
scorpion_state::ay_address_w(data);
}
u8 scorpiontb_state::ay_data_r()
{
return (m_ay_reg == 0x0e)
? (((m_port_7ffd_data & 0x10) << 1) | (m_port_1ffd_data & 0x10) | (m_port_7ffd_data & 0x0f))
: m_ay[m_ay_selected]->data_r();
}
INPUT_CHANGED_MEMBER(scorpiontb_state::turbo_changed)
{
if (newval == 1)
{
m_turbo = !m_turbo;
m_maincpu->set_clock_scale(1 << m_turbo);
popmessage("Turbo %s\n", m_turbo ? "ON" : "OFF");
}
}
INPUT_PORTS_START( scorpiontb )
PORT_INCLUDE( scorpion )
PORT_START("TURBO")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_OTHER) PORT_NAME("TURBO") PORT_CODE(KEYCODE_F11) PORT_CHANGED_MEMBER(DEVICE_SELF, scorpiontb_state, turbo_changed, 0)
INPUT_PORTS_END
void scorpiontb_state::scorpiontb(machine_config &config)
{
scorpion(config);
rectangle visarea = { get_screen_area().left() - SPEC_LEFT_BORDER, get_screen_area().right() + SPEC_RIGHT_BORDER,
get_screen_area().top() - SPEC_TOP_BORDER, get_screen_area().bottom() + SPEC_BOTTOM_BORDER };
m_screen->set_raw(X1 / 2, SPEC_CYCLES_PER_LINE * 2, SPEC_UNSEEN_LINES + SPEC_SCREEN_HEIGHT + 4, visarea);
m_ram->set_default_size("256K").set_extra_options("1M");
}
void scorpiontb_state::scorpion_update_memory()
{
LOGMEM("romplane %x, ", m_prof_plane);
scorpion_state::scorpion_update_memory();
m_bank_rom[0]->set_entry((m_prof_plane << 2) | m_bank_rom[0]->entry());
}
void scorpiontb_state::machine_start()
{
scorpion_state::machine_start();
save_item(NAME(m_prof_plane));
save_item(NAME(m_ay_reg));
save_item(NAME(m_turbo));
}
void scorpiontb_state::machine_reset()
{
m_prof_plane = 0;
m_ay_reg = -1;
scorpion_state::machine_reset();
m_is_m1_even = 0;
m_turbo = 0;
m_maincpu->set_clock_scale(1);
}
static const u8 prof_plane_map[] =
{
0, 1, 2, 3,
3, 3, 3, 2,
2, 2, 0, 1,
1, 0, 1, 0,
};
void scorpiontb_state::video_start()
{
scorpion_state::video_start();
address_space &prg = m_maincpu->space(AS_PROGRAM);
prg.install_read_tap(0x0100, 0x010c, "plane_switch", [this](offs_t offset, u8 &data, u8 mem_mask)
{
if (!machine().side_effects_disabled() && !romram() && ((m_bank_rom[0]->entry() & 3) == ROM_PAGE_SYS))
{
const u8 offs = offset & 0x000f;
if ((offs == 0) || (offs == 4) || (offs == 8) || (offs == 0x0c))
{
u8 plane = prof_plane_map[(offset & 0x0c) | (m_prof_plane & 0x03)];
if (m_prof_plane != plane)
{
m_prof_plane = plane;
scorpion_update_memory();
}
}
}
});
}
void scorpiontb_state::scorpion_ioext(address_map &map)
{
scorpion_state::scorpion_ioext(map);
map(0x0021, 0x0021).mirror(0x13fdc) // 1FFD | 00xxxxxxxx1xxx01
.lr8(NAME([this](offs_t offset) -> u8 { m_turbo = 0; m_maincpu->set_clock_scale(1); return 0xff; }));
map(0x4021, 0x4021).mirror(0x13fdc) // 7FFD | 01xxxxxxxx1xxx01
.lr8(NAME([this](offs_t offset) -> u8 { m_turbo = 1; m_maincpu->set_clock_scale(2); return 0xff; }));
map(0xe021, 0xe021).mirror(0x11fdc) // FFFD | 111xxxxxxx1xxx01
.rw(FUNC(scorpiontb_state::ay_data_r), FUNC(scorpiontb_state::ay_address_w));
// Centronics
map(0x0001, 0x0001).mirror(0xffdc).nopw();
}
/******************************************************************************
* Scorpion GMX
* ***************************************************************************/
void scorpiongmx_state::scorpion_update_memory()
{
scorpiontb_state::scorpion_update_memory();
if (BIT(m_port_1ffd_data, 2))
{
m_bank_rom[0]->set_entry((m_prof_plane << 2) | ROM_PAGE_DOS);
m_bank0_rom.disable();
m_beta->enable();
LOGMEM("... ROM0(%x)", m_bank_rom[0]->entry());
}
m_bank_ram[2]->set_entry((m_port_78fd_data ^ 2) % m_ram_banks);
LOGMEM("... RAM2(%x)", m_bank_ram[2]->entry());
m_bank_ram[3]->set_entry((((m_port_dffd_data & 7) << 4) | ((m_port_1ffd_data & 0x10) >> 1) | (m_port_7ffd_data & 0x07)) % m_ram_banks);
LOGMEM(", RAM3(%x)\n", m_bank_ram[3]->entry());
}
void scorpiongmx_state::spectrum_update_screen(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
if (!m_gfx_ext)
return scorpiontb_state::spectrum_update_screen(screen, bitmap, cliprect);
// 640x200 ...
spectrum_update_border(screen, bitmap, cliprect);
const bool invert_attrs = u64(screen.frame_number() / m_frame_invert_count) & 1;
const u8 *screen_location = m_ram->pointer() + ((BIT(m_port_7ffd_data, 3) ? 0x3b : 0x39) << 14);
for (u16 vpos = cliprect.top(); vpos <= cliprect.bottom(); vpos++)
{
const u16 y = (vpos - get_screen_area().top() + (((m_scroll_hi << 8) | m_scroll_lo) / 80)) % (25 * 8);
for (u16 hpos = cliprect.left() & 0xfff8; hpos <= cliprect.right();)
{
const u16 x = hpos - get_screen_area().left();
const u8 *scr = screen_location + (y * 80) + (x >> 3);
const u8 attr = *(scr + (0x40 << 14));
const u16 fg = ((attr >> 3) & 0x08) | (attr & 0x07);
const u16 bg = (attr >> 3) & 0x0f;
const bool invert = (attr & 0x80) && invert_attrs;
const u8 chunk = *scr;
for (u8 i = 0x80; i; i >>= 1)
bitmap.pix(vpos, hpos++) = (chunk & i)
? (invert ? bg : fg)
: (invert ? fg : bg);
}
}
}
rectangle scorpiongmx_state::get_screen_area()
{
return m_gfx_ext
? rectangle { 80, 80 + 639, 80, 80 + 199 }
: scorpiontb_state::get_screen_area();
}
void scorpiongmx_state::do_nmi()
{
if (m_magic_disabled)
{
LOGIO("NMI ignored as Magic disabled");
m_nmi_pending = 0;
}
else
{
m_port_7afd_lock_data = port_7afd_r() & 0x7f;
m_port_7efd_lock_data = port_7efd_r() & 0x4f;
LOGIO("NMI: registers locked 7afd=%02x, 7efd=%02x\n", m_port_7afd_lock_data, m_port_7efd_lock_data);
scorpion_state::do_nmi();
m_magic_lock = 1;
}
}
void scorpiongmx_state::global_cfg_w(u8 data)
{
m_port_00_data = data;
if (BIT(data, 5)) // BLKEXT
{
LOGIO("GMX ports disabled\n");
m_io_gmx.disable();
}
else
m_io_gmx.select(0);
if (BIT(data, 3))
{
m_magic_shift = 0x88 | (data & 7);
if (!fixrom())
m_maincpu->reset();
}
}
u8 scorpiongmx_state::port_78fd_r()
{
u8 tmp = (BIT(m_port_fe_data, 1) << 7) // BRD1
| (m_port_78fd_data & 0x7f);
tmp |= (m_magic_shift & 1);
if(!machine().side_effects_disabled())
m_magic_shift >>= 1;
return tmp;
}
u8 scorpiongmx_state::port_7afd_r()
{
u8 data;
if (m_magic_lock)
data = m_port_7afd_lock_data;
else
data = (BIT(m_port_dffd_data, 0, 3) << 4) | (BIT(m_port_1ffd_data, 4) << 3) | BIT(m_port_7ffd_data, 0, 3);
data |= BIT(m_port_fe_data, 0) << 7; // BRD0
return data;
}
u8 scorpiongmx_state::port_7efd_r()
{
u8 data;
if (m_magic_lock)
data = m_port_7efd_lock_data;
else
data = (BIT(m_port_1ffd_data, 0) << 6)
| (m_gfx_ext << 3)
| (m_turbo << 2)
| (BIT(m_port_7ffd_data, 3) << 1)
| BIT(m_port_7ffd_data, 5);
data |= BIT(m_port_fe_data, 2) << 7 // BRD2
| (BIT(m_port_00_data, 5) << 5)
| (BIT(m_port_00_data, 7) << 4);
return data;
}
void scorpiongmx_state::port_7efd_w(u8 data)
{
m_turbo = BIT(data, 7);
m_maincpu->set_clock_scale(1 << m_turbo);
if (!fixrom())
{
m_prof_plane = BIT(data, 4, 3); // D4..6 - A16..18: 28F400
scorpion_update_memory();
}
m_gfx_ext = BIT(data, 3);
const rectangle scr = get_screen_area();
const rectangle broder = m_gfx_ext
? rectangle {24, 24, 40, 40}
: rectangle {SPEC_LEFT_BORDER, SPEC_RIGHT_BORDER, SPEC_TOP_BORDER, SPEC_BOTTOM_BORDER};
m_screen->configure((SPEC_CYCLES_PER_LINE * 2) << m_gfx_ext, m_screen->height()
, {scr.left() - broder.left(), scr.right() + broder.right()
, scr.top() - broder.top(), scr.bottom() + broder.bottom()}
, m_screen->frame_period().as_attoseconds());
m_magic_disabled = BIT(data, 2);
// D1 - Vpp: 28F400 PowerOn
// D0 - EWR: 28F400 W
}
void scorpiongmx_state::scorpiongmx(machine_config &config)
{
scorpiontb(config);
m_ram->set_default_size("2M");
}
void scorpiongmx_state::machine_start()
{
scorpiontb_state::machine_start();
save_item(NAME(m_gfx_ext));
save_item(NAME(m_magic_disabled));
save_item(NAME(m_port_00_data));
save_item(NAME(m_port_78fd_data));
save_item(NAME(m_port_7afd_lock_data));
save_item(NAME(m_scroll_lo));
save_item(NAME(m_scroll_hi));
save_item(NAME(m_port_7efd_lock_data));
save_item(NAME(m_port_dffd_data));
m_port_00_data = 0;
}
void scorpiongmx_state::machine_reset()
{
m_io_gmx.select(0);
m_magic_shift = 0;
m_gfx_ext = 0;
m_magic_disabled = 0;
m_port_78fd_data = 0;
m_port_7afd_lock_data = 0;
m_scroll_lo = 0;
m_scroll_hi = 0;
m_port_7efd_lock_data = 0;
m_port_dffd_data = 0;
scorpiontb_state::machine_reset();
}
void scorpiongmx_state::video_start()
{
scorpion_state::video_start();
}
void scorpiongmx_state::scorpion_ioext(address_map &map)
{
scorpiontb_state::scorpion_ioext(map);
map(0x0000, 0x0000).mirror(0xff00).w(FUNC(scorpiongmx_state::global_cfg_w));
map(0x0000, 0x1ffff).view(m_io_gmx);
m_io_gmx[0](0x78fd, 0x78fd).mirror(0x10000).r(FUNC(scorpiongmx_state::port_78fd_r))
.lw8(NAME([this](u8 data) { m_port_78fd_data = data & 0x7f; scorpion_update_memory(); }));
m_io_gmx[0](0x7afd, 0x7afd).mirror(0x10000).r(FUNC(scorpiongmx_state::port_7afd_r))
.lw8(NAME([this](u8 data) { m_scroll_lo = data & 0xf0; }));
m_io_gmx[0](0x7cfd, 0x7cfd).mirror(0x10000)
.lw8(NAME([this](u8 data) { m_scroll_hi = data & 0x3f; }));
m_io_gmx[0](0x7efd, 0x7efd).mirror(0x10000).rw(FUNC(scorpiongmx_state::port_7efd_r), FUNC(scorpiongmx_state::port_7efd_w));
m_io_gmx[0](0xdffd, 0xdffd).mirror(0x10000)
.lw8(NAME([this](u8 data) { m_port_dffd_data = data & 0x07; scorpion_update_memory(); }));
}
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START(scorpio)
ROM_REGION(0x90000, "maincpu", 0)
ROM_DEFAULT_BIOS("v3")
ROM_SYSTEM_BIOS(0, "v1", "V.2.92")
ROMX_LOAD("scorp0.rom", 0x010000, 0x4000, CRC(0eb40a09) SHA1(477114ff0fe1388e0979df1423602b21248164e5), ROM_BIOS(0))
ROMX_LOAD("scorp1.rom", 0x014000, 0x4000, CRC(9d513013) SHA1(367b5a102fb663beee8e7930b8c4acc219c1f7b3), ROM_BIOS(0))
ROMX_LOAD("scorp2.rom", 0x018000, 0x4000, CRC(fd0d3ce1) SHA1(07783ee295274d8ff15d935bfd787c8ac1d54900), ROM_BIOS(0))
ROMX_LOAD("scorp3.rom", 0x01c000, 0x4000, CRC(1fe1d003) SHA1(33703e97cc93b7edfcc0334b64233cf81b7930db), ROM_BIOS(0))
ROM_SYSTEM_BIOS(1, "v2", "V.2.92 joined")
ROMX_LOAD( "scorpion.rom", 0x010000, 0x10000, CRC(fef73c28) SHA1(66cecdadf992d8adb9c66deee929eb56600dc9bc), ROM_BIOS(1))
ROM_SYSTEM_BIOS(2, "v3", "V.2.94")
ROMX_LOAD( "scorp294.rom", 0x010000, 0x10000, CRC(99f57ce1) SHA1(083bb57ad52cc871b92d3e1794fd9790872c3584), ROM_BIOS(2))
ROM_SYSTEM_BIOS(3, "v4", "NeOS 256")
ROMX_LOAD( "neos_256.rom", 0x010000, 0x4000, CRC(364ae09a) SHA1(bb6db1947415503a6bc48f33c603fb3a0dbb3690), ROM_BIOS(3))
ROMX_LOAD( "scorp1.rom", 0x014000, 0x4000, CRC(9d513013) SHA1(367b5a102fb663beee8e7930b8c4acc219c1f7b3), ROM_BIOS(3))
ROMX_LOAD( "scorp2.rom", 0x018000, 0x4000, CRC(fd0d3ce1) SHA1(07783ee295274d8ff15d935bfd787c8ac1d54900), ROM_BIOS(3))
ROMX_LOAD( "scorp3.rom", 0x01c000, 0x4000, CRC(1fe1d003) SHA1(33703e97cc93b7edfcc0334b64233cf81b7930db), ROM_BIOS(3))
ROM_SYSTEM_BIOS(4, "scorp_test", "Scorpion Test")
ROMX_LOAD( "scorp_test.rom", 0x010000, 0x10000, CRC(e0230ca7) SHA1(f38e4d23cb29b4ae3fe8b00a52d7b0f9bb845407), ROM_BIOS(4))
// This is a ROM for Scorpion emulator which modified in order to hide real hardware details
//ROMX_LOAD( "scorp402.rom", 0x010000, 0x20000, CRC(9fcf893d) SHA1(0cc7ba60f5cfc36e75bd3a5c90e26b2a1905a970))
ROM_REGION(0x01000, "keyboard", 0)
ROM_LOAD( "scrpkey.rom", 0x0000, 0x1000, CRC(e938a510) SHA1(2753993c97ff0fc6cff26ed792929abc1288dc6f))
ROM_REGION(0x010000, "gsound", 0) // TODO GS connected to ZXBUS
ROM_LOAD( "gs104.rom", 0x0000, 0x8000, CRC(7a365ba6) SHA1(c865121306eb3a7d811d82fbcc653b4dc1d6fa3d))
ROM_LOAD( "gs105a.rom", 0x8000, 0x8000, CRC(1cd490c6) SHA1(1ba78923dc7d803e7995c165992e14e4608c2153))
ROM_END
ROM_START(scorpiontb)
ROM_REGION(0x90000, "maincpu", 0)
ROM_DEFAULT_BIOS("v4.01.31lg_3d2f")
ROM_SYSTEM_BIOS(0, "v3.9f", "ProfROM V.3.9f")
ROMX_LOAD( "prof_39f.rom", 0x010000, 0x20000, CRC(c55e64da) SHA1(cec7770fe26350f57f6c325a29db78787dc4521e), ROM_BIOS(0))
ROM_SYSTEM_BIOS(1, "v4.01_01", "ProfROM V.4.01 (No ROM disk)")
ROMX_LOAD( "scorp401_0358765b.rom", 0x010000, 0x40000, CRC(0358765b) SHA1(414c21a4d01fafb6ee1752a51b79bb2f82091625), ROM_BIOS(1))
ROM_SYSTEM_BIOS(2, "v4.01_02", "ProfROM V.4.01 (ZxUnZip, ZxZip, TASM 4.0, SM 2.01, HD Copy 1.7, Test FDD)")
ROMX_LOAD( "scorp401_520f4c15.rom", 0x010000, 0x40000, CRC(520f4c15) SHA1(8a877b06e69e829b99e06be0ba48bc0fe6458672), ROM_BIOS(2))
ROM_SYSTEM_BIOS(3, "v4.01_03", "ProfROM V.4.01 (Fatall 0.25, SCBoot 1.5, MagOS 6.3)")
ROMX_LOAD( "scorp401_749516c5.rom", 0x010000, 0x40000, CRC(749516c5) SHA1(712535c4eec26224f39650e4740db131b2d0ed14), ROM_BIOS(3))
ROM_SYSTEM_BIOS(4, "v4.01_04", "ProfROM V.4.01 (Fatall 0.2)")
ROMX_LOAD( "scorp401_809c249d.rom", 0x010000, 0x40000, CRC(809c249d) SHA1(1e7ea10aeadb33a7d363809ccf31d43a0a8670ac), ROM_BIOS(4))
ROM_SYSTEM_BIOS(5, "v4.01_05", "ProfROM V.4.01 (ZxUnZip, ZxZip, TASM 4.0, SM 2.01, HD Copy 1.7, TestFDD)")
ROMX_LOAD( "scorp401_847a66e4.rom", 0x010000, 0x40000, CRC(847a66e4) SHA1(a01522cadf18c087f32c1997c5c2e889290921fa), ROM_BIOS(5))
ROM_SYSTEM_BIOS(6, "v4.01_06", "ProfROM V.4.01 (MagOS 6.3, Real Comm 2.6F, TRDNavig 0.75b, ZXunzip 1.2x, Cat HDD, Test ...)")
ROMX_LOAD( "scorp401_91f513ab.rom", 0x010000, 0x40000, CRC(91f513ab) SHA1(e2b8941591e77c1d35b811a6724b31ff3486d42d), ROM_BIOS(6))
ROM_SYSTEM_BIOS(7, "v4.01_07", "ProfROM V.4.01 (Commander, ZWord, MAGOS 6.3, STS 5.1, ADS 2.01, FPM 3.05, Ztool)")
ROMX_LOAD( "scorp401_98275049.rom", 0x010000, 0x40000, CRC(98275049) SHA1(a7518915293a82b70b2fd5261ef886c4dd33fa9b), ROM_BIOS(7))
ROM_SYSTEM_BIOS(8, "v4.01_08", "ProfROM V.4.01 (Fatall 0.25, Test Scorpion, TASM 4.0, SCBoot, Chess Psion, Tetris, Chuckie Egg, Bomber)")
ROMX_LOAD( "scorp401_a3b10c26.rom", 0x010000, 0x40000, CRC(a3b10c26) SHA1(945a671183402eee99f852eab93e28a93a81b575), ROM_BIOS(8))
ROM_SYSTEM_BIOS(9, "v4.01_09", "ProfROM V.4.01 (Fatall 0.25, SCBoot 1.5, MagOS 6.3, Real Command 2.6)")
ROMX_LOAD( "scorp401_e5476776.rom", 0x010000, 0x40000, CRC(e5476776) SHA1(3dcff254f5bbc1e6c6a5319d21ebbd5c7d65077c), ROM_BIOS(9))
ROM_SYSTEM_BIOS(10, "v4.01_10", "ProfROM V.4.01 (Fatall 0.25, SCBoot 1.5, Wild Player 3.3, Best View 2.19)")
ROMX_LOAD( "scorp401_e8900ba7.rom", 0x010000, 0x40000, CRC(e8900ba7) SHA1(5caa403036cc2268db2c35077902e3f432f3c779), ROM_BIOS(10))
ROM_SYSTEM_BIOS(11, "v4.01.15", "ProfROM V.4.xx.015")
ROMX_LOAD( "prof4xx015.rom", 0x010000, 0x40000, CRC(5d4ba991) SHA1(2d1f0bd95909cdff32a96ab55b4bcae547e20bd1), ROM_BIOS(11))
ROM_SYSTEM_BIOS(12, "v4.01.15lg", "ProfROM V.4.xx.015 (Basic Looking Glass)")
ROMX_LOAD( "prof4xx015lg.rom", 0x010000, 0x40000, CRC(3b450ceb) SHA1(e1af7110ad89764ac020c636ab835c39ada061c0), ROM_BIOS(12))
ROM_SYSTEM_BIOS(13, "v4.01.27", "ProfROM V.4.xx.027")
ROMX_LOAD( "prof4xx027.rom", 0x010000, 0x40000, CRC(8da39bed) SHA1(39a601d8af62df95efd5a514b53a4a07571befab), ROM_BIOS(13))
ROM_SYSTEM_BIOS(14, "v4.01.27lg", "ProfROM V.4.xx.027 (Basic Looking Glass)")
ROMX_LOAD( "prof4xx027lg.rom", 0x010000, 0x40000, CRC(50be8b57) SHA1(fa930ec7efe8eee641c889a0ce2ae16f03ebc1f4), ROM_BIOS(14))
ROM_SYSTEM_BIOS(15, "v4.01.29", "ProfROM V.4.xx.029")
ROMX_LOAD( "prof4xx029.rom", 0x010000, 0x40000, CRC(aebe12a3) SHA1(31c5481587554a8173016ccda46e1490cbd9fa5c), ROM_BIOS(15))
ROM_SYSTEM_BIOS(16, "v4.01.29lg", "ProfROM V.4.xx.029 (Basic Looking Glass)")
ROMX_LOAD( "prof4xx029lg.rom", 0x010000, 0x40000, CRC(1ae71a4c) SHA1(c7d8f20134f5623f2498feea5c9efbcb2fd686a3), ROM_BIOS(16))
ROM_SYSTEM_BIOS(17, "v4.01.31", "ProfROM V.4.xx.031")
ROMX_LOAD( "prof4xx031.rom", 0x010000, 0x40000, CRC(43ab9b83) SHA1(cc95edf10ee6bfd16cf738ea648cf4ce35b3b232), ROM_BIOS(17))
ROM_SYSTEM_BIOS(18, "v4.01.31lg", "ProfROM V.4.xx.031 (Basic Looking Glass)")
ROMX_LOAD( "prof4xx031lg.rom", 0x010000, 0x40000, CRC(f7f2936c) SHA1(61f8ca193624c7ed23d54f35cbebb76bc94e96e2), ROM_BIOS(18))
ROM_SYSTEM_BIOS(19, "v4.01.31_3d2f", "ProfROM V.4.xx.031(3D2F)")
ROMX_LOAD( "prof4xx031_3d2f.rom", 0x010000, 0x40000, CRC(e850e0d1) SHA1(48d41013130a5d92c2b2fd04142d5ba6ce5a324a), ROM_BIOS(19))
ROM_SYSTEM_BIOS(20, "v4.01.31lg_3d2f", "ProfROM V.4.xx.031 (Basic Looking Glass) (3D2F)")
ROMX_LOAD( "prof4xx031lg_3d2f.rom", 0x010000, 0x40000, CRC(cc525181) SHA1(985b437e8b35c0c3493a347e76f683e498bd40e4), ROM_BIOS(20))
ROM_SYSTEM_BIOS(21, "scorp_test", "Scorpion Test")
ROMX_LOAD( "scorp_test.rom", 0x010000, 0x10000, CRC(e0230ca7) SHA1(f38e4d23cb29b4ae3fe8b00a52d7b0f9bb845407), ROM_BIOS(21))
ROM_END
ROM_START(scorpiongmx)
ROM_REGION(0x90000, "maincpu", 0)
ROM_DEFAULT_BIOS("v5.01.31_3d2f")
ROM_SYSTEM_BIOS(0, "v12500", "GMX Boot Rom 1.2 V. 5.00")
ROMX_LOAD( "gmx12500.rom", 0x010000, 0x80000, CRC(00df8568) SHA1(dd303d298f96ec4f9fe736eefd3c36fff1dfcdf5), ROM_BIOS(0))
ROM_SYSTEM_BIOS(1, "v12501", "GMX Boot Rom 1.2 V. 5.01")
ROMX_LOAD( "gmx12501.rom", 0x010000, 0x80000, CRC(34c8d210) SHA1(433237c8b5cd9de3bff3b074b6c7065788306995), ROM_BIOS(1))
ROM_SYSTEM_BIOS(2, "v13500", "GMX Boot Rom 1.3 V. 5.00")
ROMX_LOAD( "gmx13500.rom", 0x010000, 0x80000, CRC(47c9df88) SHA1(e26823989ce111a086a9e44bfa07fa631019c19d), ROM_BIOS(2))
ROM_SYSTEM_BIOS(3, "v5.01.27", "ProfROM +GMX V.5.xx.027")
ROMX_LOAD( "profgmx5xx027.rom", 0x010000, 0x80000, CRC(05dc16f5) SHA1(b786c78e9f332010e3996f3281adf3f75924bede), ROM_BIOS(3))
ROM_SYSTEM_BIOS(4, "v5.01.29", "ProfROM +GMX V.5.xx.029")
ROMX_LOAD( "profgmx5xx029.rom", 0x010000, 0x80000, CRC(41016b99) SHA1(86f324d45f4f181c9231a7001b30d5ce3d1512c6), ROM_BIOS(4))
ROM_SYSTEM_BIOS(5, "v5.01.30", "ProfROM +GMX V.5.xx.030")
ROMX_LOAD( "profgmx5xx030.rom", 0x010000, 0x80000, CRC(21edd18e) SHA1(90fc58600e2da85fea7dc033a22dcc88633530bc), ROM_BIOS(5))
ROM_SYSTEM_BIOS(6, "v5.01.30_3d2f", "ProfROM +GMX V.5.xx.030 (3D2F)")
ROMX_LOAD( "profgmx5xx030_3d2f.rom", 0x010000, 0x80000, CRC(ab6e2380) SHA1(6bd2904364badb00700a7d4576d8396c62916d67), ROM_BIOS(6))
ROM_SYSTEM_BIOS(7, "v5.01.31", "ProfROM +GMX V.5.xx.031")