diff options
Diffstat (limited to 'src/mess/drivers/pcfx.c')
-rw-r--r-- | src/mess/drivers/pcfx.c | 531 |
1 files changed, 0 insertions, 531 deletions
diff --git a/src/mess/drivers/pcfx.c b/src/mess/drivers/pcfx.c deleted file mode 100644 index d2faa292087..00000000000 --- a/src/mess/drivers/pcfx.c +++ /dev/null @@ -1,531 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Wilbert Pol -/*************************************************************************** - - pcfx.c - - Driver file to handle emulation of the NEC PC-FX. - -***************************************************************************/ - - -#include "emu.h" -#include "cpu/v810/v810.h" -#include "video/huc6261.h" -#include "video/huc6270.h" -#include "video/huc6272.h" - -struct pcfx_pad_t -{ - UINT8 ctrl[2]; - UINT8 status[2]; - UINT32 latch[2]; -}; - -class pcfx_state : public driver_device -{ -public: - enum - { - TIMER_PAD_FUNC - }; - - pcfx_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag), - m_maincpu(*this, "maincpu"), - m_huc6261(*this, "huc6261") { } - - required_device<cpu_device> m_maincpu; - required_device<huc6261_device> m_huc6261; - - virtual void machine_reset(); - - UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); - - // Interrupt controller (component unknown) - UINT16 m_irq_mask; - UINT16 m_irq_pending; - UINT8 m_irq_priority[8]; - - pcfx_pad_t m_pad; - - DECLARE_READ16_MEMBER( irq_read ); - DECLARE_WRITE16_MEMBER( irq_write ); - DECLARE_READ16_MEMBER( pad_r ); - DECLARE_WRITE16_MEMBER( pad_w ); - DECLARE_READ8_MEMBER( extio_r ); - DECLARE_WRITE8_MEMBER( extio_w ); - - inline void check_irqs(); - inline void set_irq_line(int line, int state); - DECLARE_WRITE_LINE_MEMBER( irq8_w ); - DECLARE_WRITE_LINE_MEMBER( irq9_w ); - DECLARE_WRITE_LINE_MEMBER( irq10_w ); - DECLARE_WRITE_LINE_MEMBER( irq11_w ); - DECLARE_WRITE_LINE_MEMBER( irq12_w ); - DECLARE_WRITE_LINE_MEMBER( irq13_w ); - DECLARE_WRITE_LINE_MEMBER( irq14_w ); - DECLARE_WRITE_LINE_MEMBER( irq15_w ); - TIMER_CALLBACK_MEMBER(pad_func); - -protected: - virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); -}; - - -READ8_MEMBER(pcfx_state::extio_r) -{ - address_space &io_space = m_maincpu->space(AS_IO); - - return io_space.read_byte(offset); -} - -WRITE8_MEMBER(pcfx_state::extio_w) -{ - address_space &io_space = m_maincpu->space(AS_IO); - - io_space.write_byte(offset, data); -} - -static ADDRESS_MAP_START( pcfx_mem, AS_PROGRAM, 32, pcfx_state ) - AM_RANGE( 0x00000000, 0x001FFFFF ) AM_RAM /* RAM */ -// AM_RANGE( 0x80000000, 0x807FFFFF ) AM_READWRITE8(extio_r,extio_w,0xffffffff) /* EXTIO */ - AM_RANGE( 0xE0000000, 0xE7FFFFFF ) AM_NOP /* BackUp RAM */ - AM_RANGE( 0xE8000000, 0xE9FFFFFF ) AM_NOP /* Extended BackUp RAM */ - AM_RANGE( 0xF8000000, 0xF8000007 ) AM_NOP /* PIO */ - AM_RANGE( 0xFFF00000, 0xFFFFFFFF ) AM_ROMBANK("bank1") /* ROM */ -ADDRESS_MAP_END - -READ16_MEMBER( pcfx_state::pad_r ) -{ - UINT16 res; - UINT8 port_type = ((offset<<1) & 0x80) >> 7; - - if(((offset<<1) & 0x40) == 0) - { - // status - /* - ---- x--- - ---- ---x incoming data state (0=available) - */ - res = m_pad.status[port_type]; - //printf("STATUS %d\n",port_type); - } - else - { - // received data - //printf("RX %d\n",port_type); - res = m_pad.latch[port_type] >> (((offset<<1) & 2) ? 16 : 0); - - if(((offset<<1) & 0x02) == 0) - { - m_pad.status[port_type] &= ~8; // clear latch on LSB read according to docs - set_irq_line(11, 0); - } - } - - return res; -} - -void pcfx_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) -{ - switch (id) - { - case TIMER_PAD_FUNC: - pad_func(ptr, param); - break; - default: - assert_always(FALSE, "Unknown id in pcfx_state::device_timer"); - } -} - -TIMER_CALLBACK_MEMBER(pcfx_state::pad_func) -{ - const char *const padnames[] = { "P1", "P2" }; - - m_pad.latch[param] = ioport(padnames[param])->read(); - m_pad.status[param] |= 8; - m_pad.ctrl[param] &= ~1; // ack TX line - // TODO: pad IRQ - set_irq_line(11, 1); -} - -WRITE16_MEMBER( pcfx_state::pad_w ) -{ - UINT8 port_type = ((offset<<1) & 0x80) >> 7; - - if(((offset<<1) & 0x40) == 0) - { - // control - /* - ---- -x-- receiver enable - ---- --x- enable multi-tap - ---- ---x enable send (0->1 transition) - */ - if(data & 1 && (!(m_pad.ctrl[port_type] & 1))) - { - timer_set(attotime::from_msec(1), TIMER_PAD_FUNC, port_type); // TODO: time - } - - m_pad.ctrl[port_type] = data & 7; - //printf("%04x CONTROL %d\n",data,port_type); - } - else - { - // transmitted data - //printf("%04x TX %d\n",data,port_type); - } -} - - -static ADDRESS_MAP_START( pcfx_io, AS_IO, 32, pcfx_state ) - AM_RANGE( 0x00000000, 0x000000FF ) AM_READWRITE16(pad_r, pad_w, 0xffffffff) /* PAD */ - AM_RANGE( 0x00000100, 0x000001FF ) AM_NOP /* HuC6230 */ - AM_RANGE( 0x00000200, 0x000002FF ) AM_NOP /* HuC6271 */ - AM_RANGE( 0x00000300, 0x000003FF ) AM_DEVREADWRITE16( "huc6261", huc6261_device, read, write, 0xffff ) /* HuC6261 */ - AM_RANGE( 0x00000400, 0x000004FF ) AM_DEVREADWRITE8( "huc6270_a", huc6270_device, read, write, 0xffff ) /* HuC6270-A */ - AM_RANGE( 0x00000500, 0x000005FF ) AM_DEVREADWRITE8( "huc6270_b", huc6270_device, read, write, 0xffff ) /* HuC6270-B */ - AM_RANGE( 0x00000600, 0x000006FF ) AM_DEVREADWRITE( "huc6272", huc6272_device, read, write ) /* HuC6272 */ - AM_RANGE( 0x00000C80, 0x00000C83 ) AM_NOP - AM_RANGE( 0x00000E00, 0x00000EFF ) AM_READWRITE16( irq_read, irq_write, 0xffff ) /* Interrupt controller */ - AM_RANGE( 0x00000F00, 0x00000FFF ) AM_NOP -// AM_RANGE( 0x00600000, 0x006FFFFF ) AM_READ(scsi_ctrl_r) - AM_RANGE( 0x00780000, 0x007FFFFF ) AM_ROM AM_REGION("scsi_rom", 0 ) - AM_RANGE( 0x80500000, 0x805000FF ) AM_NOP /* HuC6273 */ -ADDRESS_MAP_END - - -static INPUT_PORTS_START( pcfx ) - /* - xxxx ---- ---- ---- ID (0xf = 6 button pad, 0xe = tap, 0xd = ?) - */ - PORT_START("P1") - PORT_BIT( 0xf0000000, IP_ACTIVE_LOW, IPT_UNKNOWN ) // ID - PORT_DIPNAME( 0x01000000, 0x01000000, "1" ) - PORT_DIPSETTING( 0x01000000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x02000000, 0x02000000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x02000000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x04000000, 0x04000000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x04000000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x08000000, 0x08000000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x08000000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x010000, 0x010000, "2" ) - PORT_DIPSETTING( 0x010000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x020000, 0x020000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x020000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x040000, 0x040000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x040000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x080000, 0x080000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x080000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x100000, 0x100000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x100000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x200000, 0x200000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x200000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x400000, 0x400000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x400000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x800000, 0x800000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x800000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x000000, DEF_STR( On ) ) - PORT_DIPNAME( 0x0100, 0x0100, "3" ) - PORT_DIPSETTING( 0x0100, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_DIPNAME( 0x0200, 0x0200, DEF_STR( Unknown ) ) // * - PORT_DIPSETTING( 0x0200, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_DIPNAME( 0x0400, 0x0400, DEF_STR( Unknown ) ) // * - PORT_DIPSETTING( 0x0400, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_DIPNAME( 0x0800, 0x0800, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x0800, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_DIPNAME( 0x1000, 0x1000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x1000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_DIPNAME( 0x2000, 0x2000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x2000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_DIPNAME( 0x4000, 0x4000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x4000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_DIPNAME( 0x8000, 0x8000, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x8000, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) - PORT_BIT( 0x00000080, IP_ACTIVE_LOW, IPT_START1 ) PORT_PLAYER(1) PORT_NAME("RUN button") - PORT_DIPNAME( 0x01, 0x01, "4" ) - PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - - PORT_START("P2") - PORT_BIT( 0xf0000000, IP_ACTIVE_LOW, IPT_UNKNOWN ) - PORT_BIT( 0x0fffffff, IP_ACTIVE_LOW, IPT_UNKNOWN ) -INPUT_PORTS_END - - -READ16_MEMBER( pcfx_state::irq_read ) -{ - UINT16 data = 0; - - switch( offset ) - { - // Interrupts pending - // Same bit order as mask - case 0x00/4: - data = m_irq_pending; - break; - - // Interrupt mask - case 0x40/4: - data = m_irq_mask; - break; - - // Interrupt priority 0 - case 0x80/4: - data = m_irq_priority[4] | ( m_irq_priority[5] << 3 ) | ( m_irq_priority[6] << 6 ) | ( m_irq_priority[7] << 9 ); - break; - - // Interrupt priority 1 - case 0xC0/4: - data = m_irq_priority[0] | ( m_irq_priority[1] << 3 ) | ( m_irq_priority[2] << 6 ) | ( m_irq_priority[3] << 9 ); - break; - } - - return data; -} - - -WRITE16_MEMBER( pcfx_state::irq_write ) -{ - switch( offset ) - { - // Interrupts pending - case 0x00/4: - logerror("irq_write: Attempt to write to irq pending register\n"); - break; - - // Interrupt mask - // --------x------- Mask interrupt level 8 (Unknown) - // ---------x------ Mask interrupt level 9 (Timer) - // ----------x----- Mask interrupt level 10 (Unknown) - // -----------x---- Mask interrupt level 11 (Pad) - // ------------x--- Mask interrupt level 12 (HuC6270-A) - // -------------x-- Mask interrupt level 13 (HuC6272) - // --------------x- Mask interrupt level 14 (HuC6270-B) - // ---------------x Mask interrupt level 15 (HuC6273) - // 0 - allow, 1 - ignore interrupt - case 0x40/4: - m_irq_mask = data; - check_irqs(); - break; - - // Interrupt priority 0 - // ----xxx--------- Priority level interrupt 12 - // -------xxx------ Priority level interrupt 13 - // ----------xxx--- Priority level interrupt 14 - // -------------xxx Priority level interrupt 15 - case 0x80/4: - m_irq_priority[7] = ( data >> 0 ) & 0x07; - m_irq_priority[6] = ( data >> 3 ) & 0x07; - m_irq_priority[5] = ( data >> 6 ) & 0x07; - m_irq_priority[4] = ( data >> 9 ) & 0x07; - check_irqs(); - break; - - // Interrupt priority 1 - // ----xxx--------- Priority level interrupt 8 - // -------xxx------ Priority level interrupt 9 - // ----------xxx--- Priority level interrupt 10 - // -------------xxx Priority level interrupt 11 - case 0xC0/4: - m_irq_priority[3] = ( data >> 0 ) & 0x07; - m_irq_priority[2] = ( data >> 3 ) & 0x07; - m_irq_priority[1] = ( data >> 6 ) & 0x07; - m_irq_priority[0] = ( data >> 9 ) & 0x07; - check_irqs(); - break; - } -} - - -inline void pcfx_state::check_irqs() -{ - UINT16 active_irqs = m_irq_pending & ~m_irq_mask; - int highest_prio = -1; - - for ( int i = 0; i < 8; i++ ) - { - if ( active_irqs & 0x80 ) - { - if ( m_irq_priority[i] >= highest_prio ) - { - highest_prio = m_irq_priority[i]; - } - } - active_irqs <<= 1; - } - - if ( highest_prio >= 0 ) - { - m_maincpu->set_input_line(8 + highest_prio, ASSERT_LINE ); - } - else - { - m_maincpu->set_input_line(0, CLEAR_LINE ); - } -} - - -inline void pcfx_state::set_irq_line(int line, int state) -{ - if ( state ) - { -//printf("Setting irq line %d\n", line); - m_irq_pending |= ( 1 << ( 15 - line ) ); - } - else - { -//printf("Clearing irq line %d\n", line); - m_irq_pending &= ~( 1 << ( 15 - line ) ); - } - check_irqs(); -} - -WRITE_LINE_MEMBER( pcfx_state::irq8_w ) -{ - set_irq_line(8, state); -} - -WRITE_LINE_MEMBER( pcfx_state::irq9_w ) -{ - set_irq_line(9, state); -} - -WRITE_LINE_MEMBER( pcfx_state::irq10_w ) -{ - set_irq_line(10, state); -} - -WRITE_LINE_MEMBER( pcfx_state::irq11_w ) -{ - set_irq_line(11, state); -} - -WRITE_LINE_MEMBER( pcfx_state::irq12_w ) -{ - set_irq_line(12, state); -} - -WRITE_LINE_MEMBER( pcfx_state::irq13_w ) -{ - set_irq_line(13, state); -} - -WRITE_LINE_MEMBER( pcfx_state::irq14_w ) -{ - set_irq_line(14, state); -} - -WRITE_LINE_MEMBER( pcfx_state::irq15_w ) -{ - set_irq_line(15, state); -} - - -void pcfx_state::machine_reset() -{ - membank( "bank1" )->set_base( memregion("user1")->base() ); - - m_irq_mask = 0xFF; - m_irq_pending = 0; -} - - -UINT32 pcfx_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - m_huc6261->video_update( bitmap, cliprect ); - return 0; -} - - -static MACHINE_CONFIG_START( pcfx, pcfx_state ) - MCFG_CPU_ADD( "maincpu", V810, XTAL_21_4772MHz ) - MCFG_CPU_PROGRAM_MAP( pcfx_mem) - MCFG_CPU_IO_MAP( pcfx_io) - - MCFG_SCREEN_ADD( "screen", RASTER ) - MCFG_SCREEN_UPDATE_DRIVER(pcfx_state, screen_update) - MCFG_SCREEN_RAW_PARAMS(XTAL_21_4772MHz, HUC6261_WPF, 64, 64 + 1024 + 64, HUC6261_LPF, 18, 18 + 242) - - MCFG_DEVICE_ADD( "huc6270_a", HUC6270, 0 ) - MCFG_HUC6270_VRAM_SIZE(0x20000) - MCFG_HUC6270_IRQ_CHANGED_CB(WRITELINE(pcfx_state, irq12_w)) - - MCFG_DEVICE_ADD( "huc6270_b", HUC6270, 0 ) - MCFG_HUC6270_VRAM_SIZE(0x20000) - MCFG_HUC6270_IRQ_CHANGED_CB(WRITELINE(pcfx_state, irq14_w)) - - MCFG_DEVICE_ADD("huc6261", HUC6261, XTAL_21_4772MHz) - MCFG_HUC6261_VDC1("huc6270_a") - MCFG_HUC6261_VDC2("huc6270_b") - - MCFG_HUC6272_ADD( "huc6272", XTAL_21_4772MHz ) -MACHINE_CONFIG_END - - -ROM_START( pcfx ) - ROM_REGION( 0x100000, "user1", 0 ) - ROM_SYSTEM_BIOS( 0, "v100", "BIOS v1.00 - 2 Sep 1994" ) - ROMX_LOAD( "pcfxbios.bin", 0x000000, 0x100000, CRC(76ffb97a) SHA1(1a77fd83e337f906aecab27a1604db064cf10074), ROM_BIOS(1) ) - ROM_SYSTEM_BIOS( 1, "v101", "BIOS v1.01 - 5 Dec 1994" ) - ROMX_LOAD( "pcfxv101.bin", 0x000000, 0x100000, CRC(236102c9) SHA1(8b662f7548078be52a871565e19511ccca28c5c8), ROM_BIOS(2) ) - - ROM_REGION( 0x80000, "scsi_rom", 0 ) - ROM_LOAD( "fx-scsi.rom", 0x00000, 0x80000, CRC(f3e60e5e) SHA1(65482a23ac5c10a6095aee1db5824cca54ead6e5) ) -ROM_END - - -ROM_START( pcfxga ) - ROM_REGION( 0x100000, "user1", 0 ) - ROM_LOAD( "pcfxga.rom", 0x000000, 0x100000, CRC(41c3776b) SHA1(a9372202a5db302064c994fcda9b24d29bb1b41c) ) - - ROM_REGION( 0x80000, "scsi_rom", ROMREGION_ERASEFF ) -ROM_END - - -/*************************************************************************** - - Game driver(s) - -***************************************************************************/ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ -CONS( 1994, pcfx, 0, 0, pcfx, pcfx, driver_device, 0, "Nippon Electronic Company", "PC-FX", MACHINE_NOT_WORKING | MACHINE_NO_SOUND ) -CONS( 199?, pcfxga, pcfx, 0, pcfx, pcfx, driver_device, 0, "Nippon Electronic Company", "PC-FX/GA (PC ISA Card)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND ) |