diff options
Diffstat (limited to 'src/devices/bus/bml3/bml3mp1802.cpp')
-rw-r--r-- | src/devices/bus/bml3/bml3mp1802.cpp | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/src/devices/bus/bml3/bml3mp1802.cpp b/src/devices/bus/bml3/bml3mp1802.cpp deleted file mode 100644 index 85668d01f39..00000000000 --- a/src/devices/bus/bml3/bml3mp1802.cpp +++ /dev/null @@ -1,142 +0,0 @@ -// license:GPL-2.0+ -// copyright-holders:Jonathan Edwards -/********************************************************************* - - bml3mp1802.c - - Hitachi MP-1802 floppy disk controller card for the MB-6890 - Hitachi MP-3550 floppy drive is attached - -*********************************************************************/ - -#include "emu.h" -#include "bml3mp1802.h" - - -/*************************************************************************** - PARAMETERS -***************************************************************************/ - -//************************************************************************** -// GLOBAL VARIABLES -//************************************************************************** - -DEFINE_DEVICE_TYPE(BML3BUS_MP1802, bml3bus_mp1802_device, "bml3mp1802", "Hitachi MP-1802 Floppy Controller Card") - -static void mp1802_floppies(device_slot_interface &device) -{ - device.option_add("dd", FLOPPY_525_DD); -} - -WRITE_LINE_MEMBER( bml3bus_mp1802_device::bml3_wd17xx_intrq_w ) -{ - if (state) - { - m_bml3bus->set_nmi_line(ASSERT_LINE); - m_bml3bus->set_nmi_line(CLEAR_LINE); - } -} - -#define MP1802_ROM_REGION "mp1802_rom" - -ROM_START( mp1802 ) - ROM_REGION(0x10000, MP1802_ROM_REGION, 0) - // MP-1802 disk controller ROM, which replaces part of the system ROM - ROM_LOAD( "mp1802.rom", 0xf800, 0x800, BAD_DUMP CRC(8d0dc101) SHA1(92f7d1cebecafa7472e45c4999520de5c01c6dbc)) -ROM_END - - -/*************************************************************************** - FUNCTION PROTOTYPES -***************************************************************************/ - -//------------------------------------------------- -// device_add_mconfig - add device configuration -//------------------------------------------------- - -void bml3bus_mp1802_device::device_add_mconfig(machine_config &config) -{ - MB8866(config, m_fdc, 1_MHz_XTAL); - m_fdc->intrq_wr_callback().set(FUNC(bml3bus_mp1802_device::bml3_wd17xx_intrq_w)); - - FLOPPY_CONNECTOR(config, m_floppy0, mp1802_floppies, "dd", floppy_image_device::default_floppy_formats); - FLOPPY_CONNECTOR(config, m_floppy1, mp1802_floppies, "dd", floppy_image_device::default_floppy_formats); - FLOPPY_CONNECTOR(config, m_floppy2, mp1802_floppies, "", floppy_image_device::default_floppy_formats); - FLOPPY_CONNECTOR(config, m_floppy3, mp1802_floppies, "", floppy_image_device::default_floppy_formats); -} - -//------------------------------------------------- -// rom_region - device-specific ROM region -//------------------------------------------------- - -const tiny_rom_entry *bml3bus_mp1802_device::device_rom_region() const -{ - return ROM_NAME( mp1802 ); -} - -READ8_MEMBER( bml3bus_mp1802_device::bml3_mp1802_r) -{ - return m_fdc->drq_r() ? 0x00 : 0x80; -} - -WRITE8_MEMBER( bml3bus_mp1802_device::bml3_mp1802_w) -{ - floppy_image_device *floppy = nullptr; - - switch (data & 0x03) - { - case 0: floppy = m_floppy0->get_device(); break; - case 1: floppy = m_floppy1->get_device(); break; - case 2: floppy = m_floppy2->get_device(); break; - case 3: floppy = m_floppy3->get_device(); break; - } - - m_fdc->set_floppy(floppy); - - if (floppy) - { - floppy->mon_w(!BIT(data, 3)); - floppy->ss_w(BIT(data, 4)); - } -} - - -//************************************************************************** -// LIVE DEVICE -//************************************************************************** - -bml3bus_mp1802_device::bml3bus_mp1802_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : - device_t(mconfig, BML3BUS_MP1802, tag, owner, clock), - device_bml3bus_card_interface(mconfig, *this), - m_fdc(*this, "fdc"), - m_floppy0(*this, "fdc:0"), - m_floppy1(*this, "fdc:1"), - m_floppy2(*this, "fdc:2"), - m_floppy3(*this, "fdc:3"), m_rom(nullptr) -{ -} - - -//------------------------------------------------- -// device_start - device-specific startup -//------------------------------------------------- - -void bml3bus_mp1802_device::device_start() -{ - // set_bml3bus_device makes m_slot valid - set_bml3bus_device(); - - m_rom = memregion(MP1802_ROM_REGION)->base(); - - // install into memory - address_space &space_prg = m_bml3bus->space(); - space_prg.install_readwrite_handler(0xff00, 0xff03, read8sm_delegate(FUNC(mb8866_device::read), m_fdc.target()), write8sm_delegate(FUNC(mb8866_device::write), m_fdc.target())); - space_prg.install_readwrite_handler(0xff04, 0xff04, read8_delegate(FUNC(bml3bus_mp1802_device::bml3_mp1802_r), this), write8_delegate(FUNC(bml3bus_mp1802_device::bml3_mp1802_w), this)); - // overwriting the main ROM (rather than using e.g. install_rom) should mean that bank switches for RAM expansion still work... - uint8_t *mainrom = device().machine().root_device().memregion("maincpu")->base(); - memcpy(mainrom + 0xf800, m_rom + 0xf800, 0x800); -} - -void bml3bus_mp1802_device::device_reset() -{ -} |