diff options
Diffstat (limited to 'src/mame/drivers/microdec.c')
-rw-r--r-- | src/mame/drivers/microdec.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/mame/drivers/microdec.c b/src/mame/drivers/microdec.c new file mode 100644 index 00000000000..8f2494087da --- /dev/null +++ b/src/mame/drivers/microdec.c @@ -0,0 +1,142 @@ +// license:BSD-3-Clause +// copyright-holders:Miodrag Milanovic +/*************************************************************************** + + Morrow Designs Micro Decision + + 2009-12-10 Skeleton driver. + +****************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "machine/upd765.h" +#include "machine/terminal.h" + +#define TERMINAL_TAG "terminal" + +class microdec_state : public driver_device +{ +public: + microdec_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_terminal(*this, TERMINAL_TAG), + m_maincpu(*this, "maincpu") + { + } + + DECLARE_READ8_MEMBER(status_r); + DECLARE_READ8_MEMBER(keyin_r); + DECLARE_WRITE8_MEMBER(kbd_put); +private: + UINT8 m_term_data; + virtual void machine_reset(); + virtual void machine_start(); + required_device<generic_terminal_device> m_terminal; + required_device<cpu_device> m_maincpu; +}; + + +READ8_MEMBER( microdec_state::status_r ) +{ + return (m_term_data) ? 3 : 1; +} + +READ8_MEMBER( microdec_state::keyin_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +static ADDRESS_MAP_START(microdec_mem, AS_PROGRAM, 8, microdec_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE( 0x0000, 0x0fff ) AM_ROM + AM_RANGE( 0x1000, 0xffff ) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START(microdec_io, AS_IO, 8, microdec_state) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0xfa, 0xfb) AM_DEVICE("upd765", upd765a_device, map) + AM_RANGE(0xfc, 0xfc) AM_READ(keyin_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) + AM_RANGE(0xfd, 0xfd) AM_READ(status_r) + // AM_RANGE(0xf0, 0xf3) 8253 PIT (md3 only) used as a baud rate generator for serial ports + // AM_RANGE(0xf4, 0xf4) Centronics data + // AM_RANGE(0xf5, 0xf5) motor check (md1/2) + // AM_RANGE(0xf5, 0xf5) Centronics status (md3) read bit 3 (ack=1); read bit 4 (busy=1); write bit 7 (stb=0) + // AM_RANGE(0xf6, 0xf6) rom enable (w=enable; r=disable) + // AM_RANGE(0xf7, 0xf7) VFO Count set + // AM_RANGE(0xf8, 0xf8) Motor and SHift control + // AM_RANGE(0xfa, 0xfb) uPD765C fdc FA=status; FB=data + // AM_RANGE(0xfc, 0xfd) Serial Port 1 FC=data FD=status + // AM_RANGE(0xfe, 0xff) Serial Port 2 FE=data FF=status +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( microdec ) +INPUT_PORTS_END + +void microdec_state::machine_start() +{ +} + +void microdec_state::machine_reset() +{ + m_term_data = 0; +} + +WRITE8_MEMBER( microdec_state::kbd_put ) +{ + m_term_data = data; +} + +static SLOT_INTERFACE_START( microdec_floppies ) + SLOT_INTERFACE( "525hd", FLOPPY_525_HD ) +SLOT_INTERFACE_END + +static MACHINE_CONFIG_START( microdec, microdec_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) + MCFG_CPU_PROGRAM_MAP(microdec_mem) + MCFG_CPU_IO_MAP(microdec_io) + + /* video hardware */ + MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) + MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(microdec_state, kbd_put)) + + MCFG_UPD765A_ADD("upd765", true, true) + MCFG_FLOPPY_DRIVE_ADD("upd765:0", microdec_floppies, "525hd", floppy_image_device::default_floppy_formats) + MCFG_FLOPPY_DRIVE_ADD("upd765:1", microdec_floppies, "525hd", floppy_image_device::default_floppy_formats) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( md2 ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_SYSTEM_BIOS( 0, "v13", "v1.3" ) + ROMX_LOAD( "md2-13.bin", 0x0000, 0x0800, CRC(43f4c9ab) SHA1(48a35cbee4f341310e9cba5178c3fd6e74ef9748), ROM_BIOS(1)) + ROM_SYSTEM_BIOS( 1, "v13a", "v1.3a" ) + ROMX_LOAD( "md2-13a.bin", 0x0000, 0x0800, CRC(d7fcddfd) SHA1(cae29232b737ebb36a27b8ad17bc69e9968f1309), ROM_BIOS(2)) + ROM_SYSTEM_BIOS( 2, "v13b", "v1.3b" ) + ROMX_LOAD( "md2-13b.bin", 0x0000, 0x1000, CRC(a8b96835) SHA1(c6b111939aa7e725da507da1915604656540b24e), ROM_BIOS(3)) + ROM_SYSTEM_BIOS( 3, "v20", "v2.0" ) + ROMX_LOAD( "md2-20.bin", 0x0000, 0x1000, CRC(a604735c) SHA1(db6e6e82a803f5cbf4f628f5778a93ae3e211fe1), ROM_BIOS(4)) + ROM_SYSTEM_BIOS( 4, "v23", "v2.3" ) + ROMX_LOAD( "md2-23.bin", 0x0000, 0x1000, CRC(49bae273) SHA1(00381a226fe250aa3636b0b740df0af63efb0d18), ROM_BIOS(5)) +ROM_END + +ROM_START( md3 ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_SYSTEM_BIOS( 0, "v23a", "v2.3a" ) + ROMX_LOAD( "md3-23a.bin", 0x0000, 0x1000, CRC(95d59980) SHA1(ae65a8e8e2823cf4cf6b1d74c0996248e290e9f1), ROM_BIOS(1)) + ROM_SYSTEM_BIOS( 1, "v25", "v2.5" ) + ROMX_LOAD( "md3-25.bin", 0x0000, 0x1000, CRC(14f86bc5) SHA1(82fe022c85f678744bb0340ca3f88b18901fdfcb), ROM_BIOS(2)) + ROM_SYSTEM_BIOS( 2, "v31", "v3.1" ) + ROMX_LOAD( "md3-31.bin", 0x0000, 0x1000, CRC(bd4014f6) SHA1(5b33220af34c64676756177db4915f97840b2996), ROM_BIOS(3)) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ +COMP( 1982, md2, 0, 0, microdec, microdec, driver_device, 0, "Morrow Designs", "Micro Decision MD-2", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) +COMP( 1982, md3, md2, 0, microdec, microdec, driver_device, 0, "Morrow Designs", "Micro Decision MD-3", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |