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author Miodrag Milanovic <mmicko@gmail.com>2015-11-08 12:56:12 +0100
committer Miodrag Milanovic <mmicko@gmail.com>2015-11-08 12:56:12 +0100
commit7c19aac60e12d6f5ea301bdb34d7826a01e0b06f (patch)
treef310d86aa2c6bfc19d115307dedde4eb0cd52dad /src/mame/drivers/myvision.cpp
parenta57b46ae933badd7441ce1644711dbb851e2b504 (diff)
Rename *.c -> *.cpp in our source (nw)
Diffstat (limited to 'src/mame/drivers/myvision.cpp')
-rw-r--r--src/mame/drivers/myvision.cpp250
1 files changed, 250 insertions, 0 deletions
diff --git a/src/mame/drivers/myvision.cpp b/src/mame/drivers/myvision.cpp
new file mode 100644
index 00000000000..f49d1aef6f5
--- /dev/null
+++ b/src/mame/drivers/myvision.cpp
@@ -0,0 +1,250 @@
+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol
+/***************************************************************************
+
+ Nichibutsu My Vision
+ driver by Wilbert Pol
+
+ 2013/12/01 Skeleton driver.
+ 2013/12/02 Working driver.
+
+ Known issues:
+ - The inputs sometimes feel a bit unresponsive. Was the real unit like
+ that? Or is it just because we have incorrect clocks?
+
+ TODO:
+ - Review software list
+ - Add clickable artwork
+ - Verify sound chip model
+ - Verify exact TMS9918 model
+ - Verify clock crystal(s)
+ - Verify size of vram
+
+****************************************************************************/
+
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "video/tms9928a.h"
+#include "sound/ay8910.h"
+#include "bus/generic/slot.h"
+#include "bus/generic/carts.h"
+#include "softlist.h"
+
+class myvision_state : public driver_device
+{
+public:
+ myvision_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_maincpu(*this, "maincpu")
+ , m_cart(*this, "cartslot")
+ , m_io_row0(*this, "ROW0")
+ , m_io_row1(*this, "ROW1")
+ , m_io_row2(*this, "ROW2")
+ , m_io_row3(*this, "ROW3")
+ { }
+
+ DECLARE_WRITE_LINE_MEMBER( vdp_interrupt );
+ DECLARE_DEVICE_IMAGE_LOAD_MEMBER( cart );
+ DECLARE_READ8_MEMBER( ay_port_a_r );
+ DECLARE_READ8_MEMBER( ay_port_b_r );
+ DECLARE_WRITE8_MEMBER( ay_port_a_w );
+ DECLARE_WRITE8_MEMBER( ay_port_b_w );
+
+private:
+ virtual void machine_start();
+ virtual void machine_reset();
+ required_device<cpu_device> m_maincpu;
+ required_device<generic_slot_device> m_cart;
+ UINT8 m_column;
+ required_ioport m_io_row0;
+ required_ioport m_io_row1;
+ required_ioport m_io_row2;
+ required_ioport m_io_row3;
+};
+
+
+static ADDRESS_MAP_START(myvision_mem, AS_PROGRAM, 8, myvision_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ //AM_RANGE(0x0000, 0x5fff) // mapped by the cartslot
+ AM_RANGE(0xa000, 0xa7ff) AM_RAM
+ AM_RANGE(0xe000, 0xe000) AM_DEVREADWRITE("tms9918", tms9918a_device, vram_read, vram_write)
+ AM_RANGE(0xe002, 0xe002) AM_DEVREADWRITE("tms9918", tms9918a_device, register_read, register_write)
+ADDRESS_MAP_END
+
+
+static ADDRESS_MAP_START(myvision_io, AS_IO, 8, myvision_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_DEVWRITE("ay8910", ay8910_device, address_w)
+ AM_RANGE(0x01, 0x01) AM_DEVWRITE("ay8910", ay8910_device, data_w)
+ AM_RANGE(0x02, 0x02) AM_DEVREAD("ay8910", ay8910_device, data_r)
+ADDRESS_MAP_END
+
+
+/* Input ports */
+/*
+ Keyboard layout is something like:
+ B
+ A D E
+ C
+ 1 2 3 4 5 6 7 8 9 10 11 12 13 14
+ */
+static INPUT_PORTS_START( myvision )
+ PORT_START("ROW0")
+ PORT_BIT(0x07, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_MAHJONG_M) PORT_NAME("13")
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_NAME("C/Down")
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_MAHJONG_I) PORT_NAME("9")
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_MAHJONG_E) PORT_NAME("5")
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_MAHJONG_A) PORT_NAME("1")
+
+ PORT_START("ROW1")
+ PORT_BIT(0x07, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_NAME("B/Up")
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_MAHJONG_L) PORT_NAME("12")
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_MAHJONG_H) PORT_NAME("8")
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_MAHJONG_D) PORT_NAME("4")
+
+ PORT_START("ROW2")
+ PORT_BIT(0x07, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_MAHJONG_N) PORT_NAME("14/Start")
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_NAME("D/Right")
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_MAHJONG_J) PORT_NAME("10")
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_MAHJONG_F) PORT_NAME("6")
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_MAHJONG_B) PORT_NAME("2")
+
+ PORT_START("ROW3")
+ PORT_BIT(0x07, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_NAME("A/Left")
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("E")
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_MAHJONG_K) PORT_NAME("11")
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_MAHJONG_G) PORT_NAME("7")
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_MAHJONG_C) PORT_NAME("3")
+
+INPUT_PORTS_END
+
+
+void myvision_state::machine_start()
+{
+ if (m_cart->exists())
+ m_maincpu->space(AS_PROGRAM).install_read_handler(0x0000, 0x5fff, read8_delegate(FUNC(generic_slot_device::read_rom),(generic_slot_device*)m_cart));
+
+ save_item(NAME(m_column));
+}
+
+
+void myvision_state::machine_reset()
+{
+ m_column = 0xff;
+}
+
+
+DEVICE_IMAGE_LOAD_MEMBER( myvision_state, cart )
+{
+ UINT32 size = m_cart->common_get_size("rom");
+
+ if (size != 0x4000 && size != 0x6000)
+ {
+ image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unsupported cartridge size");
+ return IMAGE_INIT_FAIL;
+ }
+
+ m_cart->rom_alloc(size, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE);
+ m_cart->common_load_rom(m_cart->get_rom_base(), size, "rom");
+
+ return IMAGE_INIT_PASS;
+}
+
+
+WRITE_LINE_MEMBER(myvision_state::vdp_interrupt)
+{
+ m_maincpu->set_input_line(INPUT_LINE_IRQ0, state);
+}
+
+READ8_MEMBER( myvision_state::ay_port_a_r )
+{
+ UINT8 data = 0xFF;
+
+ if ( ! ( m_column & 0x80 ) )
+ {
+ data &= m_io_row0->read();
+ }
+
+ if ( ! ( m_column & 0x40 ) )
+ {
+ data &= m_io_row1->read();
+ }
+
+ if ( ! ( m_column & 0x20 ) )
+ {
+ data &= m_io_row2->read();
+ }
+
+ if ( ! ( m_column & 0x10 ) )
+ {
+ data &= m_io_row3->read();
+ }
+
+ return data;
+}
+
+
+READ8_MEMBER( myvision_state::ay_port_b_r )
+{
+ return 0xff;
+}
+
+
+WRITE8_MEMBER( myvision_state::ay_port_a_w )
+{
+}
+
+
+// Upper 4 bits select column
+WRITE8_MEMBER( myvision_state::ay_port_b_w )
+{
+ m_column = data;
+}
+
+static MACHINE_CONFIG_START( myvision, myvision_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",Z80, XTAL_10_738635MHz/3) /* Not verified */
+ MCFG_CPU_PROGRAM_MAP(myvision_mem)
+ MCFG_CPU_IO_MAP(myvision_io)
+
+ /* video hardware */
+ MCFG_DEVICE_ADD( "tms9918", TMS9918A, XTAL_10_738635MHz / 2 ) /* Exact model not verified */
+ MCFG_TMS9928A_VRAM_SIZE(0x4000) /* Not verified */
+ MCFG_TMS9928A_OUT_INT_LINE_CB(WRITELINE(myvision_state, vdp_interrupt))
+ MCFG_TMS9928A_SCREEN_ADD_NTSC( "screen" )
+ MCFG_SCREEN_UPDATE_DEVICE( "tms9918", tms9918a_device, screen_update )
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("ay8910", AY8910, XTAL_10_738635MHz/3/2) /* Exact model and clock not verified */
+ MCFG_AY8910_PORT_A_READ_CB(READ8(myvision_state, ay_port_a_r))
+ MCFG_AY8910_PORT_B_READ_CB(READ8(myvision_state, ay_port_b_r))
+ MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(myvision_state, ay_port_a_w))
+ MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(myvision_state, ay_port_b_w))
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+
+ /* cartridge */
+ MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "myvision_cart")
+ MCFG_GENERIC_LOAD(myvision_state, cart)
+ //MCFG_GENERIC_MANDATORY
+
+ /* software lists */
+ MCFG_SOFTWARE_LIST_ADD("cart_list","myvision")
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( myvision )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+CONS( 1983, myvision, 0, 0, myvision, myvision, driver_device, 0, "Nichibutsu", "My Vision (KH-1000)", 0 )