diff options
Diffstat (limited to 'src/mess/machine/pc9801_26.c')
-rw-r--r-- | src/mess/machine/pc9801_26.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/src/mess/machine/pc9801_26.c b/src/mess/machine/pc9801_26.c deleted file mode 100644 index 2f0b0351c7c..00000000000 --- a/src/mess/machine/pc9801_26.c +++ /dev/null @@ -1,194 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Angelo Salese -/*************************************************************************** - - NEC PC-9801-26 sound card - - Legacy sound card for PC-98xx family, composed by a single YM2203 - - TODO: - - joystick code should be shared between -26, -86 and -118 - -***************************************************************************/ - -#include "emu.h" -#include "machine/pc9801_26.h" -#include "machine/pic8259.h" -#include "sound/2203intf.h" - -#define MAIN_CLOCK_X1 XTAL_1_9968MHz - -//************************************************************************** -// GLOBAL VARIABLES -//************************************************************************** - -// device type definition -const device_type PC9801_26 = &device_creator<pc9801_26_device>; - - - -READ8_MEMBER(pc9801_26_device::opn_porta_r) -{ - if(m_joy_sel & 0x80) - return ioport(m_joy_sel & 0x40 ? "OPN_PA2" : "OPN_PA1")->read(); - - return 0xff; -} - -WRITE8_MEMBER(pc9801_26_device::opn_portb_w){ m_joy_sel = data; } - -WRITE_LINE_MEMBER(pc9801_26_device::pc9801_sound_irq) -{ - /* TODO: seems to die very often */ - machine().device<pic8259_device>(":pic8259_slave")->ir4_w(state); -} - -static MACHINE_CONFIG_FRAGMENT( pc9801_26_config ) - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("opn", YM2203, MAIN_CLOCK_X1*2) // unknown clock / divider - MCFG_YM2203_IRQ_HANDLER(WRITELINE(pc9801_26_device, pc9801_sound_irq)) - MCFG_AY8910_PORT_A_READ_CB(READ8(pc9801_26_device, opn_porta_r)) - //MCFG_AY8910_PORT_B_READ_CB(READ8(pc9801_state, opn_portb_r)) - //MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(pc9801_state, opn_porta_w)) - MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(pc9801_26_device, opn_portb_w)) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) -MACHINE_CONFIG_END - -//------------------------------------------------- -// machine_config_additions - device-specific -// machine configurations -//------------------------------------------------- - -machine_config_constructor pc9801_26_device::device_mconfig_additions() const -{ - return MACHINE_CONFIG_NAME( pc9801_26_config ); -} - - -//------------------------------------------------- -// input_ports - device-specific input ports -//------------------------------------------------- - -static INPUT_PORTS_START( pc9801_26 ) - PORT_START("OPN_PA1") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Up") - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Down") - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Left") - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Right") - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_NAME("P1 Joystick Button 1") - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_NAME("P1 Joystick Button 2") - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("OPN_PA2") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Up") - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Down") - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Left") - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Right") - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_NAME("P2 Joystick Button 1") - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_NAME("P2 Joystick Button 2") - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("OPN_DSW") - PORT_CONFNAME( 0x01, 0x01, "PC-9801-26: Port Base" ) - PORT_CONFSETTING( 0x00, "0x088" ) - PORT_CONFSETTING( 0x01, "0x188" ) -INPUT_PORTS_END - -ioport_constructor pc9801_26_device::device_input_ports() const -{ - return INPUT_PORTS_NAME( pc9801_26 ); -} - -//************************************************************************** -// LIVE DEVICE -//************************************************************************** - -//------------------------------------------------- -// pc9801_26_device - constructor -//------------------------------------------------- - -pc9801_26_device::pc9801_26_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) - : device_t(mconfig, PC9801_26, "pc9801_26", tag, owner, clock, "pc9801_26", __FILE__), -// m_maincpu(*owner, "maincpu"), - m_opn(*this, "opn") -{ -} - - -//------------------------------------------------- -// device_validity_check - perform validity checks -// on this device -//------------------------------------------------- - -void pc9801_26_device::device_validity_check(validity_checker &valid) const -{ -} - -//------------------------------------------------- -// device_start - device-specific startup -//------------------------------------------------- - -void pc9801_26_device::install_device(offs_t start, offs_t end, offs_t mask, offs_t mirror, read8_delegate rhandler, write8_delegate whandler) -{ - int buswidth = machine().firstcpu->space_config(AS_IO)->m_databus_width; - switch(buswidth) - { - case 8: - machine().firstcpu->space(AS_IO).install_readwrite_handler(start, end, mask, mirror, rhandler, whandler, 0); - break; - case 16: - machine().firstcpu->space(AS_IO).install_readwrite_handler(start, end, mask, mirror, rhandler, whandler, 0xffff); - break; - case 32: - machine().firstcpu->space(AS_IO).install_readwrite_handler(start, end, mask, mirror, rhandler, whandler, 0xffffffff); - break; - default: - fatalerror("PC-9801-26: Bus width %d not supported\n", buswidth); - } -} - - -void pc9801_26_device::device_start() -{ -} - - -//------------------------------------------------- -// device_reset - device-specific reset -//------------------------------------------------- - -void pc9801_26_device::device_reset() -{ - UINT16 port_base = (ioport("OPN_DSW")->read() & 1) << 8; - install_device(port_base + 0x0088, port_base + 0x008b, 0, 0, read8_delegate(FUNC(pc9801_26_device::pc9801_26_r), this), write8_delegate(FUNC(pc9801_26_device::pc9801_26_w), this) ); -} - - -//************************************************************************** -// READ/WRITE HANDLERS -//************************************************************************** - - -READ8_MEMBER(pc9801_26_device::pc9801_26_r) -{ - if((offset & 1) == 0) - { - return offset & 4 ? 0xff : m_opn->read(space, offset >> 1); - } - else // odd - { - printf("Read to undefined port [%02x]\n",offset+0x188); - return 0xff; - } -} - - -WRITE8_MEMBER(pc9801_26_device::pc9801_26_w) -{ - if((offset & 5) == 0) - m_opn->write(space, offset >> 1, data); - else // odd - printf("PC9801-26: Write to undefined port [%02x] %02x\n",offset+0x188,data); -} |