diff options
Diffstat (limited to 'src/mame/drivers/atm.cpp')
-rw-r--r-- | src/mame/drivers/atm.cpp | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/src/mame/drivers/atm.cpp b/src/mame/drivers/atm.cpp new file mode 100644 index 00000000000..300f503d90e --- /dev/null +++ b/src/mame/drivers/atm.cpp @@ -0,0 +1,248 @@ +// license:BSD-3-Clause +// copyright-holders:Miodrag Milanovic +/******************************************************************************************* + +MicroART ATM (clone of Spectrum) + +Not working because of banking issues. + +The direct_update_handler needs rewriting, because removing it allows the +computer to boot up (with keyboard problems). + +*******************************************************************************************/ + +#include "emu.h" +#include "includes/spectrum.h" +#include "imagedev/snapquik.h" +#include "imagedev/cassette.h" +#include "sound/ay8910.h" +#include "sound/speaker.h" +#include "machine/beta.h" +#include "machine/ram.h" + + +class atm_state : public spectrum_state +{ +public: + atm_state(const machine_config &mconfig, device_type type, const char *tag) + : spectrum_state(mconfig, type, tag) + , m_bank1(*this, "bank1") + , m_bank2(*this, "bank2") + , m_bank3(*this, "bank3") + , m_bank4(*this, "bank4") + , m_beta(*this, BETA_DISK_TAG) + { } + + DECLARE_WRITE8_MEMBER(atm_port_7ffd_w); + DIRECT_UPDATE_MEMBER(atm_direct); + DECLARE_MACHINE_RESET(atm); + +protected: + required_memory_bank m_bank1; + required_memory_bank m_bank2; + required_memory_bank m_bank3; + required_memory_bank m_bank4; + required_device<beta_disk_device> m_beta; + +private: + UINT8 *m_p_ram; + void atm_update_memory(); +}; + + +DIRECT_UPDATE_MEMBER(atm_state::atm_direct) +{ + UINT16 pc = m_maincpu->state_int(STATE_GENPCBASE); + + if (m_beta->started() && m_beta->is_active()) + { + if (pc >= 0x4000) + { + m_ROMSelection = BIT(m_port_7ffd_data, 4); + m_beta->disable(); + m_bank1->set_base(&m_p_ram[0x10000 + (m_ROMSelection<<14)]); + } + } + else if (((pc & 0xff00) == 0x3d00) && (m_ROMSelection==1)) + { + m_ROMSelection = 3; + if (m_beta->started()) + m_beta->enable(); + + } + if(address<=0x3fff) + { + if (m_ROMSelection == 3) + { + direct.explicit_configure(0x0000, 0x3fff, 0x3fff, &m_p_ram[0x18000]); + m_bank1->set_base(&m_p_ram[0x18000]); + } + else + { + direct.explicit_configure(0x0000, 0x3fff, 0x3fff, &m_p_ram[0x10000 + (m_ROMSelection<<14)]); + m_bank1->set_base(&m_p_ram[0x10000 + (m_ROMSelection<<14)]); + } + return ~0; + } + return address; +} + +void atm_state::atm_update_memory() +{ + UINT8 *messram = m_ram->pointer(); + + m_screen_location = messram + ((m_port_7ffd_data & 8) ? (7<<14) : (5<<14)); + + m_bank4->set_base(messram + ((m_port_7ffd_data & 0x07) * 0x4000)); + + if (m_beta->started() && m_beta->is_active() && !( m_port_7ffd_data & 0x10 ) ) + m_ROMSelection = 3; + else + /* ROM switching */ + m_ROMSelection = BIT(m_port_7ffd_data, 4) ; + + /* rom 0 is 128K rom, rom 1 is 48 BASIC */ + m_bank1->set_base(&m_p_ram[0x10000 + (m_ROMSelection<<14)]); +} + +WRITE8_MEMBER(atm_state::atm_port_7ffd_w) +{ + /* disable paging */ + if (m_port_7ffd_data & 0x20) + return; + + /* store new state */ + m_port_7ffd_data = data; + + /* update memory */ + atm_update_memory(); +} + +static ADDRESS_MAP_START (atm_io, AS_IO, 8, atm_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x001f, 0x001f) AM_DEVREADWRITE(BETA_DISK_TAG, beta_disk_device, status_r, command_w) AM_MIRROR(0xff00) + AM_RANGE(0x003f, 0x003f) AM_DEVREADWRITE(BETA_DISK_TAG, beta_disk_device, track_r, track_w) AM_MIRROR(0xff00) + AM_RANGE(0x005f, 0x005f) AM_DEVREADWRITE(BETA_DISK_TAG, beta_disk_device, sector_r, sector_w) AM_MIRROR(0xff00) + AM_RANGE(0x007f, 0x007f) AM_DEVREADWRITE(BETA_DISK_TAG, beta_disk_device, data_r, data_w) AM_MIRROR(0xff00) + AM_RANGE(0x00fe, 0x00fe) AM_READWRITE(spectrum_port_fe_r,spectrum_port_fe_w) AM_MIRROR(0xff00) AM_MASK(0xffff) + AM_RANGE(0x00ff, 0x00ff) AM_DEVREADWRITE(BETA_DISK_TAG, beta_disk_device, state_r, param_w) AM_MIRROR(0xff00) + AM_RANGE(0x4000, 0x4000) AM_WRITE(atm_port_7ffd_w) AM_MIRROR(0x3ffd) + AM_RANGE(0x8000, 0x8000) AM_DEVWRITE("ay8912", ay8910_device, data_w) AM_MIRROR(0x3ffd) + AM_RANGE(0xc000, 0xc000) AM_DEVREADWRITE("ay8912", ay8910_device, data_r, address_w) AM_MIRROR(0x3ffd) +ADDRESS_MAP_END + +MACHINE_RESET_MEMBER(atm_state,atm) +{ + UINT8 *messram = m_ram->pointer(); + address_space &space = m_maincpu->space(AS_PROGRAM); + m_p_ram = memregion("maincpu")->base(); + + space.install_read_bank(0x0000, 0x3fff, "bank1"); + space.unmap_write(0x0000, 0x3fff); + + if (m_beta->started()) + { + m_beta->enable(); + } + space.set_direct_update_handler(direct_update_delegate(FUNC(atm_state::atm_direct), this)); + + memset(messram,0,128*1024); + + /* Bank 5 is always in 0x4000 - 0x7fff */ + m_bank2->set_base(messram + (5<<14)); + + /* Bank 2 is always in 0x8000 - 0xbfff */ + m_bank3->set_base(messram + (2<<14)); + + m_port_7ffd_data = 0; + m_port_1ffd_data = -1; + + atm_update_memory(); +} + +/* 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 */ + /* 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 */ +}; + +static GFXDECODE_START( atm ) + GFXDECODE_ENTRY( "maincpu", 0x1fd00, spectrum_charlayout, 0, 8 ) +GFXDECODE_END + +static GFXDECODE_START( atmtb2 ) + GFXDECODE_ENTRY( "maincpu", 0x13d00, spectrum_charlayout, 0, 8 ) +GFXDECODE_END + + +static MACHINE_CONFIG_DERIVED_CLASS( atm, spectrum_128, atm_state ) + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_IO_MAP(atm_io) + MCFG_MACHINE_RESET_OVERRIDE(atm_state, atm ) + + MCFG_BETA_DISK_ADD(BETA_DISK_TAG) + + MCFG_GFXDECODE_MODIFY("gfxdecode", atm) +MACHINE_CONFIG_END + +static MACHINE_CONFIG_DERIVED( atmtb2, atm ) + MCFG_GFXDECODE_MODIFY("gfxdecode", atmtb2) +MACHINE_CONFIG_END + + +/*************************************************************************** + + Game driver(s) + +***************************************************************************/ + +ROM_START( atm ) + ROM_REGION(0x020000, "maincpu", ROMREGION_ERASEFF) + ROM_SYSTEM_BIOS(0, "v1", "v.1.03") + ROMX_LOAD( "atm103.rom", 0x010000, 0x10000, CRC(4912e249) SHA1(a4adff05bb215dd126c47201b36956115b8fed76), ROM_BIOS(1)) + ROM_SYSTEM_BIOS(1, "v2", "v.1.06 joined") + ROMX_LOAD( "atm106.rom", 0x010000, 0x10000, CRC(75350b37) SHA1(2afc9994f026645c74b6c4b35bcee2e0bc0d6edc), ROM_BIOS(2)) + ROM_SYSTEM_BIOS(2, "v3", "v.1.06") + ROMX_LOAD( "atm106-1.rom", 0x010000, 0x4000, CRC(658c98f1) SHA1(1ec694795aa6cac10147e58f38a9db0bdf7ed89b), ROM_BIOS(3)) + ROMX_LOAD( "atm106-2.rom", 0x014000, 0x4000, CRC(8fe367f9) SHA1(56de8fd39061663b9c315b74fd3c31acddae279c), ROM_BIOS(3)) + ROMX_LOAD( "atm106-3.rom", 0x018000, 0x4000, CRC(124ad9e0) SHA1(d07fcdeca892ee80494d286ea9ea5bf3928a1aca), ROM_BIOS(3)) + ROMX_LOAD( "atm106-4.rom", 0x01c000, 0x4000, CRC(f352f2ab) SHA1(6045500ab01be708cef62327e9821b4a358a4673), ROM_BIOS(3)) + ROM_SYSTEM_BIOS(3, "v4", "v.1.03rs") + ROMX_LOAD( "atm103rs.rom", 0x010000, 0x10000, CRC(cdec1dfb) SHA1(08190807c6b110cb2e657d8e7d0ad18668915375), ROM_BIOS(4)) +ROM_END + +ROM_START( atmtb2 ) + ROM_REGION(0x020000, "maincpu", ROMREGION_ERASEFF) + ROM_SYSTEM_BIOS(0, "v1", "v.1.07.12 joined") + ROMX_LOAD( "atmtb2.rom", 0x010000, 0x10000,CRC(05218c26) SHA1(71ed9864e7aa85131de97cf1e53dc152e7c79488), ROM_BIOS(1)) + ROM_SYSTEM_BIOS(1, "v2", "v.1.07.12") + ROMX_LOAD( "atmtb2-1.rom", 0x010000, 0x4000, CRC(658c98f1) SHA1(1ec694795aa6cac10147e58f38a9db0bdf7ed89b), ROM_BIOS(2)) + ROMX_LOAD( "atmtb2-2.rom", 0x014000, 0x4000, CRC(bc3f6b2b) SHA1(afa9df63857141fef270e2c97e12d2edc60cf919), ROM_BIOS(2)) + ROMX_LOAD( "atmtb2-3.rom", 0x018000, 0x4000, CRC(124ad9e0) SHA1(d07fcdeca892ee80494d286ea9ea5bf3928a1aca), ROM_BIOS(2)) + ROMX_LOAD( "atmtb2-4.rom", 0x01c000, 0x4000, CRC(5869d8c4) SHA1(c3e198138f528ac4a8dff3c76cd289fd4713abff), ROM_BIOS(2)) + ROM_SYSTEM_BIOS(2, "v3", "v.1.07.13") + ROMX_LOAD( "atmtb213.rom", 0x010000, 0x10000, CRC(34a91d53) SHA1(8f0af0f3c0ff1644535f20545c73d01576d6e52f), ROM_BIOS(3)) + + ROM_REGION(0x01000, "keyboard", ROMREGION_ERASEFF) + // XT Keyboard + ROM_LOAD( "rf2ve3.rom", 0x0000, 0x0580, CRC(35e0f9ec) SHA1(adcf14758fab8472cfa0167af7e8326c66416416)) + // AT Keyboard + ROM_LOAD( "rfat710.rom", 0x0600, 0x0680, CRC(03734365) SHA1(6cb6311727fad9bc4ccb18919c3c39b37529b8e6)) + ROM_REGION(0x08000, "charrom", ROMREGION_ERASEFF) + // Char gen rom + ROM_LOAD( "sgen.rom", 0x0000, 0x0800, CRC(1f4387d6) SHA1(93b3774dc8a486643a1bdd48c606b0c84fa0e22b)) +ROM_END + +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME */ +COMP( 1991, atm, spec128, 0, atm, spec_plus, driver_device, 0, "MicroART", "ATM", MACHINE_NOT_WORKING) +//COMP( 1991, atmtb1, spec128, 0, atm, spec_plus, driver_device, 0, "MicroART", "ATM-turbo1", MACHINE_NOT_WORKING) +COMP( 1993, atmtb2, spec128, 0, atmtb2, spec_plus, driver_device, 0, "MicroART", "ATM-turbo2", MACHINE_NOT_WORKING) +//COMP( 1994, turbo2, spec128, 0, atm, spec_plus, driver_device, 0, "MicroART", "TURBO 2+", MACHINE_NOT_WORKING) |