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Diffstat (limited to 'src/mess/drivers/m5.c')
-rw-r--r--src/mess/drivers/m5.c779
1 files changed, 779 insertions, 0 deletions
diff --git a/src/mess/drivers/m5.c b/src/mess/drivers/m5.c
new file mode 100644
index 00000000000..9bd77e091d1
--- /dev/null
+++ b/src/mess/drivers/m5.c
@@ -0,0 +1,779 @@
+/***************************************************************************
+
+ Sord m.5
+
+ http://www.retropc.net/mm/m5/
+ http://www.museo8bits.es/wiki/index.php/Sord_M5
+ http://k5.web.klfree.net/content/view/10/11/
+ http://k5.web.klfree.net/images/stories/sord/m5heap.htm
+
+****************************************************************************/
+
+/*
+
+ TODO:
+
+ - floppy
+ - SI-5 serial interface (8251, ROM)
+ - 64KB RAM expansions
+
+*/
+
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "cpu/z80/z80daisy.h"
+#include "formats/basicdsk.h"
+#include "formats/sord_cas.h"
+#include "imagedev/cartslot.h"
+#include "imagedev/cassette.h"
+#include "imagedev/flopdrv.h"
+#include "machine/ctronics.h"
+#include "machine/i8255.h"
+#include "machine/ram.h"
+#include "machine/upd765.h"
+#include "machine/z80ctc.h"
+#include "sound/sn76496.h"
+#include "video/tms9928a.h"
+#include "includes/m5.h"
+
+
+
+//**************************************************************************
+// MEMORY BANKING
+//**************************************************************************
+
+//-------------------------------------------------
+// sts_r -
+//-------------------------------------------------
+
+READ8_MEMBER( m5_state::sts_r )
+{
+ /*
+
+ bit description
+
+ 0 cassette input
+ 1 busy
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7 RESET key
+
+ */
+
+ UINT8 data = 0;
+
+ // cassette input
+ data |= (m_cassette)->input() >= 0 ? 1 : 0;
+
+ // centronics busy
+ data |= m_centronics->busy_r() << 1;
+
+ // RESET key
+ data |= ioport("RESET")->read();
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// com_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( m5_state::com_w )
+{
+ /*
+
+ bit description
+
+ 0 cassette output, centronics strobe
+ 1 cassette remote
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+
+ */
+
+ // cassette output
+ m_cassette->output( BIT(data, 0) ? -1.0 : 1.0);
+
+ // centronics strobe
+ m_centronics->strobe_w(BIT(data, 0));
+
+ // cassette remote
+ m_cassette->change_state(BIT(data,1) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
+}
+
+
+
+//**************************************************************************
+// FD-5
+//**************************************************************************
+
+//-------------------------------------------------
+// fd5_data_r -
+//-------------------------------------------------
+
+READ8_MEMBER( m5_state::fd5_data_r )
+{
+ m_ppi->pc6_w(0);
+
+ return m_fd5_data;
+}
+
+
+//-------------------------------------------------
+// fd5_data_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( m5_state::fd5_data_w )
+{
+ m_fd5_data = data;
+
+ m_ppi->pc4_w(0);
+}
+
+
+//-------------------------------------------------
+// fd5_com_r -
+//-------------------------------------------------
+
+READ8_MEMBER( m5_state::fd5_com_r )
+{
+ /*
+
+ bit description
+
+ 0 ?
+ 1 1?
+ 2 IBFA?
+ 3 OBFA?
+ 4
+ 5
+ 6
+ 7
+
+ */
+
+ return m_obfa << 3 | m_ibfa << 2 | 0x02;
+}
+
+
+//-------------------------------------------------
+// fd5_com_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( m5_state::fd5_com_w )
+{
+ /*
+
+ bit description
+
+ 0 PPI PC2
+ 1 PPI PC0
+ 2 PPI PC1
+ 3
+ 4
+ 5
+ 6
+ 7
+
+ */
+
+ m_fd5_com = data;
+}
+
+
+//-------------------------------------------------
+// fd5_com_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( m5_state::fd5_ctrl_w )
+{
+ /*
+
+ bit description
+
+ 0
+ 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+
+ */
+
+ floppy_mon_w(m_floppy0, !BIT(data, 0));
+ floppy_drive_set_ready_state(m_floppy0, 1, 1);
+}
+
+
+//-------------------------------------------------
+// fd5_com_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( m5_state::fd5_tc_w )
+{
+ upd765_tc_w(m_fdc, 1);
+ upd765_tc_w(m_fdc, 0);
+}
+
+
+
+//**************************************************************************
+// ADDRESS MAPS
+//**************************************************************************
+
+//-------------------------------------------------
+// ADDRESS_MAP( m5_mem )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( m5_mem, AS_PROGRAM, 8, m5_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0x2000, 0x6fff) AM_ROM
+ AM_RANGE(0x7000, 0x7fff) AM_RAM
+ AM_RANGE(0x8000, 0xffff) AM_RAM
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( m5_io )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( m5_io, AS_IO, 8, m5_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x03) AM_MIRROR(0x0c) AM_DEVREADWRITE(Z80CTC_TAG, z80ctc_device, read, write)
+ AM_RANGE(0x10, 0x10) AM_MIRROR(0x0e) AM_DEVREADWRITE("tms9928a", tms9928a_device, vram_read, vram_write)
+ AM_RANGE(0x11, 0x11) AM_MIRROR(0x0e) AM_DEVREADWRITE("tms9928a", tms9928a_device, register_read, register_write)
+ AM_RANGE(0x20, 0x20) AM_MIRROR(0x0f) AM_DEVWRITE_LEGACY(SN76489AN_TAG, sn76496_w)
+ AM_RANGE(0x30, 0x30) AM_READ_PORT("Y0") // 64KBF bank select
+ AM_RANGE(0x31, 0x31) AM_READ_PORT("Y1")
+ AM_RANGE(0x32, 0x32) AM_READ_PORT("Y2")
+ AM_RANGE(0x33, 0x33) AM_READ_PORT("Y3")
+ AM_RANGE(0x34, 0x34) AM_READ_PORT("Y4")
+ AM_RANGE(0x35, 0x35) AM_READ_PORT("Y5")
+ AM_RANGE(0x36, 0x36) AM_READ_PORT("Y6")
+ AM_RANGE(0x37, 0x37) AM_READ_PORT("JOY")
+ AM_RANGE(0x40, 0x40) AM_MIRROR(0x0f) AM_DEVWRITE(CENTRONICS_TAG, centronics_device, write)
+ AM_RANGE(0x50, 0x50) AM_MIRROR(0x0f) AM_READWRITE(sts_r, com_w)
+// AM_RANGE(0x60, 0x63) SIO
+// AM_RANGE(0x6c, 0x6c) EM-64/64KBI bank select
+ AM_RANGE(0x70, 0x73) AM_MIRROR(0x0c) AM_DEVREADWRITE(I8255A_TAG, i8255_device, read, write)
+// AM_RANGE(0x7f, 0x7f) 64KRD/64KRX bank select
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( fd5_mem )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( fd5_mem, AS_PROGRAM, 8, m5_state )
+ AM_RANGE(0x0000, 0x3fff) AM_ROM
+ AM_RANGE(0x4000, 0xffff) AM_RAM
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( fd5_io )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( fd5_io, AS_IO, 8, m5_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_DEVREAD_LEGACY(UPD765_TAG, upd765_status_r)
+ AM_RANGE(0x01, 0x01) AM_DEVREADWRITE_LEGACY(UPD765_TAG, upd765_data_r, upd765_data_w)
+ AM_RANGE(0x10, 0x10) AM_READWRITE(fd5_data_r, fd5_data_w)
+ AM_RANGE(0x20, 0x20) AM_WRITE(fd5_com_w)
+ AM_RANGE(0x30, 0x30) AM_READ(fd5_com_r)
+ AM_RANGE(0x40, 0x40) AM_WRITE(fd5_ctrl_w)
+ AM_RANGE(0x50, 0x50) AM_WRITE(fd5_tc_w)
+ADDRESS_MAP_END
+
+
+
+//**************************************************************************
+// INPUT PORTS
+//**************************************************************************
+
+//-------------------------------------------------
+// INPUT_PORTS( m5 )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( m5 )
+ PORT_START("Y0")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Func") PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_MAMEKEY(F1))
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_MAMEKEY(RSHIFT))
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
+
+ PORT_START("Y1")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
+
+ PORT_START("Y2")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
+
+ PORT_START("Y3")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
+
+ PORT_START("Y4")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
+
+ PORT_START("Y5")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_CHAR(UCHAR_MAMEKEY(DOWN))
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("_ Triangle") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('_')
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\\') PORT_CHAR('|')
+
+ PORT_START("Y6")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_CHAR('`') PORT_CHAR(UCHAR_MAMEKEY(UP))
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[') PORT_CHAR('{')
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_CHAR(UCHAR_MAMEKEY(LEFT))
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']') PORT_CHAR('}')
+
+ PORT_START("JOY")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) PORT_PLAYER(1)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP) PORT_PLAYER(1)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) PORT_PLAYER(1)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) PORT_PLAYER(1)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) PORT_PLAYER(2)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP) PORT_PLAYER(2)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) PORT_PLAYER(2)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) PORT_PLAYER(2)
+
+ PORT_START("RESET")
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Reset") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) /* 1st line, 1st key from right! */
+INPUT_PORTS_END
+
+
+
+//**************************************************************************
+// DEVICE CONFIGURATION
+//**************************************************************************
+
+//-------------------------------------------------
+// Z80CTC_INTERFACE( ctc_intf )
+//-------------------------------------------------
+
+// CK0 = EXINT, CK1 = GND, CK2 = TCK, CK3 = VDP INT
+
+static Z80CTC_INTERFACE( ctc_intf )
+{
+ DEVCB_CPU_INPUT_LINE(Z80_TAG, INPUT_LINE_IRQ0),
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL // EXCLK
+};
+
+
+//-------------------------------------------------
+// cassette_interface cassette_intf
+//-------------------------------------------------
+
+static const cassette_interface cassette_intf =
+{
+ sordm5_cassette_formats,
+ NULL,
+ (cassette_state)(CASSETTE_PLAY),
+ NULL,
+ NULL
+};
+
+
+//-------------------------------------------------
+// TMS9928a_interface vdp_intf
+//-------------------------------------------------
+
+static WRITE_LINE_DEVICE_HANDLER(sordm5_video_interrupt_callback)
+{
+ m5_state *driver_state = device->machine().driver_data<m5_state>();
+
+ if (state)
+ {
+ driver_state->m_ctc->trg3(1);
+ driver_state->m_ctc->trg3(0);
+ }
+}
+
+static TMS9928A_INTERFACE(m5_tms9928a_interface)
+{
+ "screen",
+ 0x4000,
+ DEVCB_LINE(sordm5_video_interrupt_callback)
+};
+
+//-------------------------------------------------
+// I8255_INTERFACE( ppi_intf )
+//-------------------------------------------------
+
+READ8_MEMBER( m5_state::ppi_pa_r )
+{
+ return m_fd5_data;
+}
+
+READ8_MEMBER( m5_state::ppi_pc_r )
+{
+ /*
+
+ bit description
+
+ 0 ?
+ 1 ?
+ 2 ?
+ 3
+ 4 STBA
+ 5
+ 6 ACKA
+ 7
+
+ */
+
+ return (
+ /* FD5 bit 0-> M5 bit 2 */
+ ((m_fd5_com & 0x01)<<2) |
+ /* FD5 bit 2-> M5 bit 1 */
+ ((m_fd5_com & 0x04)>>1) |
+ /* FD5 bit 1-> M5 bit 0 */
+ ((m_fd5_com & 0x02)>>1)
+ );
+}
+
+WRITE8_MEMBER( m5_state::ppi_pa_w )
+{
+ m_fd5_data = data;
+}
+
+WRITE8_MEMBER( m5_state::ppi_pb_w )
+{
+ /*
+
+ bit description
+
+ 0
+ 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+
+ */
+
+ if (data == 0xf0)
+ {
+ device_set_input_line(m_fd5cpu, INPUT_LINE_RESET, ASSERT_LINE);
+ device_set_input_line(m_fd5cpu, INPUT_LINE_RESET, CLEAR_LINE);
+ }
+}
+
+WRITE8_MEMBER( m5_state::ppi_pc_w )
+{
+ /*
+
+ bit description
+
+ 0
+ 1
+ 2
+ 3 INTRA
+ 4
+ 5 IBFA
+ 6
+ 7 OBFA
+
+ */
+
+ m_intra = BIT(data, 3);
+ m_ibfa = BIT(data, 5);
+ m_obfa = BIT(data, 7);
+}
+
+static I8255_INTERFACE( ppi_intf )
+{
+ DEVCB_DRIVER_MEMBER(m5_state, ppi_pa_r),
+ DEVCB_DRIVER_MEMBER(m5_state, ppi_pa_w),
+ DEVCB_NULL,
+ DEVCB_DRIVER_MEMBER(m5_state, ppi_pb_w),
+ DEVCB_DRIVER_MEMBER(m5_state, ppi_pc_r),
+ DEVCB_DRIVER_MEMBER(m5_state, ppi_pc_w)
+};
+
+
+//-------------------------------------------------
+// upd765_interface fdc_intf
+//-------------------------------------------------
+
+static LEGACY_FLOPPY_OPTIONS_START( m5 )
+ LEGACY_FLOPPY_OPTION( m5, "dsk", "Sord M5 disk image", basicdsk_identify_default, basicdsk_construct_default, NULL,
+ HEADS([2])
+ TRACKS([40])
+ SECTORS([18])
+ SECTOR_LENGTH([256])
+ FIRST_SECTOR_ID([1]))
+LEGACY_FLOPPY_OPTIONS_END
+
+static const floppy_interface m5_floppy_interface =
+{
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ FLOPPY_STANDARD_5_25_DSDD_40,
+ LEGACY_FLOPPY_OPTIONS_NAME(m5),
+ NULL,
+ NULL
+};
+
+static const struct upd765_interface fdc_intf =
+{
+ DEVCB_CPU_INPUT_LINE(Z80_FD5_TAG, INPUT_LINE_IRQ0),
+ DEVCB_NULL,
+ NULL,
+ UPD765_RDY_PIN_CONNECTED,
+ { FLOPPY_0, NULL, NULL, NULL }
+};
+
+
+//-------------------------------------------------
+// z80_daisy_config m5_daisy_chain
+//-------------------------------------------------
+
+static const z80_daisy_config m5_daisy_chain[] =
+{
+ { Z80CTC_TAG },
+ { NULL }
+};
+
+
+
+//**************************************************************************
+// MACHINE INITIALIZATION
+//**************************************************************************
+
+//-------------------------------------------------
+// MACHINE_START( m5 )
+//-------------------------------------------------
+
+void m5_state::machine_start()
+{
+ address_space *program = m_maincpu->memory().space(AS_PROGRAM);
+
+ // configure RAM
+ switch (m_ram->size())
+ {
+ case 4*1024:
+ program->unmap_readwrite(0x8000, 0xffff);
+ break;
+
+ case 36*1024:
+ break;
+
+ case 68*1024:
+ break;
+ }
+
+ // register for state saving
+ save_item(NAME(m_fd5_data));
+ save_item(NAME(m_fd5_com));
+ save_item(NAME(m_intra));
+ save_item(NAME(m_ibfa));
+ save_item(NAME(m_obfa));
+}
+
+
+//-------------------------------------------------
+// MACHINE_RESET( m5 )
+//-------------------------------------------------
+
+void m5_state::machine_reset()
+{
+}
+
+
+
+//**************************************************************************
+// MACHINE CONFIGURATION
+//**************************************************************************
+
+//-------------------------------------------------
+// MACHINE_CONFIG( m5 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_START( m5, m5_state )
+ // basic machine hardware
+ MCFG_CPU_ADD(Z80_TAG, Z80, XTAL_14_31818MHz/4)
+ MCFG_CPU_PROGRAM_MAP(m5_mem)
+ MCFG_CPU_IO_MAP(m5_io)
+ MCFG_CPU_CONFIG(m5_daisy_chain)
+
+ MCFG_CPU_ADD(Z80_FD5_TAG, Z80, XTAL_14_31818MHz/4)
+ MCFG_CPU_PROGRAM_MAP(fd5_mem)
+ MCFG_CPU_IO_MAP(fd5_io)
+
+ // sound hardware
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD(SN76489AN_TAG, SN76489A, XTAL_14_31818MHz/4)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
+
+ // devices
+ MCFG_Z80CTC_ADD(Z80CTC_TAG, XTAL_14_31818MHz/4, ctc_intf)
+ MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, standard_centronics)
+ MCFG_CASSETTE_ADD(CASSETTE_TAG, cassette_intf)
+ MCFG_I8255_ADD(I8255A_TAG, ppi_intf)
+ MCFG_UPD765A_ADD(UPD765_TAG, fdc_intf)
+ MCFG_LEGACY_FLOPPY_DRIVE_ADD(FLOPPY_0, m5_floppy_interface)
+
+ // cartridge
+ MCFG_CARTSLOT_ADD("cart")
+ MCFG_CARTSLOT_EXTENSION_LIST("bin,rom")
+ MCFG_CARTSLOT_MANDATORY
+ MCFG_CARTSLOT_INTERFACE("m5_cart")
+
+ // software lists
+ MCFG_SOFTWARE_LIST_ADD("cart_list", "m5")
+
+ // internal ram
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("4K")
+ MCFG_RAM_EXTRA_OPTIONS("36K,68K")
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG_DERIVED( ntsc, m5 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_DERIVED( ntsc, m5 )
+ // video hardware
+ MCFG_TMS9928A_ADD( "tms9928a", TMS9928A, m5_tms9928a_interface )
+ MCFG_TMS9928A_SCREEN_ADD_NTSC( "screen" )
+ MCFG_SCREEN_UPDATE_DEVICE( "tms9928a", tms9928a_device, screen_update )
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG_DERIVED( pal, m5 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_DERIVED( pal, m5 )
+ // video hardware
+ MCFG_TMS9928A_ADD( "tms9928a", TMS9929A, m5_tms9928a_interface )
+ MCFG_TMS9928A_SCREEN_ADD_PAL( "screen" )
+ MCFG_SCREEN_UPDATE_DEVICE( "tms9928a", tms9928a_device, screen_update )
+MACHINE_CONFIG_END
+
+
+
+//**************************************************************************
+// ROMS
+//**************************************************************************
+
+//-------------------------------------------------
+// ROM( m5 )
+//-------------------------------------------------
+
+ROM_START( m5 )
+ ROM_REGION( 0x7000, Z80_TAG, ROMREGION_ERASEFF )
+ ROM_LOAD( "sordjap.ic21", 0x0000, 0x2000, CRC(92cf9353) SHA1(b0a4b3658fde68cb1f344dfb095bac16a78e9b3e) )
+ ROM_CART_LOAD( "cart", 0x2000, 0x5000, ROM_NOMIRROR | ROM_OPTIONAL )
+
+ ROM_REGION( 0x4000, Z80_FD5_TAG, 0 )
+ ROM_LOAD( "sordfd5.rom", 0x0000, 0x4000, CRC(7263bbc5) SHA1(b729500d3d2b2e807d384d44b76ea5ad23996f4a))
+ROM_END
+
+
+//-------------------------------------------------
+// ROM( m5p )
+//-------------------------------------------------
+
+ROM_START( m5p )
+ ROM_REGION( 0x7000, Z80_TAG, ROMREGION_ERASEFF )
+ ROM_LOAD( "sordint.ic21", 0x0000, 0x2000, CRC(78848d39) SHA1(ac042c4ae8272ad6abe09ae83492ef9a0026d0b2) )
+ ROM_CART_LOAD( "cart", 0x2000, 0x5000, ROM_NOMIRROR | ROM_OPTIONAL )
+
+ ROM_REGION( 0x4000, Z80_FD5_TAG, 0 )
+ ROM_LOAD( "sordfd5.rom", 0x0000, 0x4000, CRC(7263bbc5) SHA1(b729500d3d2b2e807d384d44b76ea5ad23996f4a))
+ROM_END
+
+
+
+//**************************************************************************
+// DRIVER INITIALIZATION
+//**************************************************************************
+
+//-------------------------------------------------
+// ROM( ntsc )
+//-------------------------------------------------
+
+DRIVER_INIT_MEMBER(m5_state,ntsc)
+{
+}
+
+
+//-------------------------------------------------
+// ROM( pal )
+//-------------------------------------------------
+
+DRIVER_INIT_MEMBER(m5_state,pal)
+{
+}
+
+
+
+//**************************************************************************
+// SYSTEM DRIVERS
+//**************************************************************************
+
+// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS
+COMP( 1983, m5, 0, 0, ntsc, m5, m5_state, ntsc, "Sord", "m.5 (Japan)", 0 )
+COMP( 1983, m5p, m5, 0, pal, m5, m5_state, pal, "Sord", "m.5 (Europe)", 0 )