diff options
Diffstat (limited to 'src/mess/drivers/pasopia.c')
-rw-r--r-- | src/mess/drivers/pasopia.c | 359 |
1 files changed, 0 insertions, 359 deletions
diff --git a/src/mess/drivers/pasopia.c b/src/mess/drivers/pasopia.c deleted file mode 100644 index 03a27a2d2fb..00000000000 --- a/src/mess/drivers/pasopia.c +++ /dev/null @@ -1,359 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Angelo Salese -/*************************************************************************** - - Toshiba Pasopia - - TODO: - - machine emulation needs merging with Pasopia 7 (video emulation is - completely different tho) - -****************************************************************************/ - -#include "emu.h" -#include "cpu/z80/z80.h" -#include "machine/i8255.h" -#include "machine/z80ctc.h" -#include "machine/z80pio.h" -#include "video/mc6845.h" -#include "includes/pasopia.h" - -class pasopia_state : public driver_device -{ -public: - pasopia_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag), - m_maincpu(*this, "maincpu"), - m_ppi0(*this, "ppi8255_0"), - m_ppi1(*this, "ppi8255_1"), - m_ppi2(*this, "ppi8255_2"), - m_ctc(*this, "z80ctc"), - m_pio(*this, "z80pio"), - m_crtc(*this, "crtc"), - m_palette(*this, "palette") - { } - - required_device<cpu_device> m_maincpu; - required_device<i8255_device> m_ppi0; - required_device<i8255_device> m_ppi1; - required_device<i8255_device> m_ppi2; - required_device<z80ctc_device> m_ctc; - required_device<z80pio_device> m_pio; - required_device<mc6845_device> m_crtc; - required_device<palette_device> m_palette; - - DECLARE_READ8_MEMBER(pasopia_romram_r); - DECLARE_WRITE8_MEMBER(pasopia_ram_w); - DECLARE_WRITE8_MEMBER(pasopia_ctrl_w); - DECLARE_WRITE8_MEMBER(vram_addr_lo_w); - DECLARE_WRITE8_MEMBER(vram_latch_w); - DECLARE_READ8_MEMBER(vram_latch_r); - DECLARE_READ8_MEMBER(portb_1_r); - DECLARE_WRITE8_MEMBER(vram_addr_hi_w); - DECLARE_WRITE8_MEMBER(screen_mode_w); - DECLARE_READ8_MEMBER(rombank_r); - DECLARE_READ8_MEMBER(testa_r); - DECLARE_READ8_MEMBER(testb_r); - DECLARE_WRITE_LINE_MEMBER(testa_w); - DECLARE_WRITE_LINE_MEMBER(testb_w); - DECLARE_WRITE8_MEMBER(kbd_put); - DECLARE_READ8_MEMBER(mux_r); - DECLARE_READ8_MEMBER(keyb_r); - DECLARE_WRITE8_MEMBER(mux_w); - MC6845_UPDATE_ROW(crtc_update_row); - - UINT8 m_hblank; - UINT16 m_vram_addr; - UINT8 m_vram_latch; - UINT8 m_attr_latch; -// UINT8 m_gfx_mode; - UINT8 m_mux_data; - bool m_video_wl; - bool m_ram_bank; - UINT8 *m_p_vram; - DECLARE_DRIVER_INIT(pasopia); - TIMER_CALLBACK_MEMBER(pio_timer); - virtual void machine_start(); - virtual void machine_reset(); - virtual void video_start(); -}; - -// needed to scan the keyboard, as the pio emulation doesn't do it. -TIMER_CALLBACK_MEMBER(pasopia_state::pio_timer) -{ - m_pio->port_b_write(keyb_r(generic_space(),0,0xff)); -} - -void pasopia_state::video_start() -{ -} - -MC6845_UPDATE_ROW( pasopia_state::crtc_update_row ) -{ - const rgb_t *palette = m_palette->palette()->entry_list_raw(); - UINT8 *m_p_chargen = memregion("chargen")->base(); - UINT8 chr,gfx,fg=7,bg=0; // colours need to be determined - UINT16 mem,x; - UINT32 *p = &bitmap.pix32(y); - - for (x = 0; x < x_count; x++) - { - UINT8 inv=0; - if (x == cursor_x) inv=0xff; - mem = (ma + x) & 0xfff; - chr = m_p_vram[mem]; - - /* get pattern of pixels for that character scanline */ - gfx = m_p_chargen[(chr<<3) | ra] ^ inv; - - /* Display a scanline of a character */ - *p++ = palette[BIT(gfx, 7) ? fg : bg]; - *p++ = palette[BIT(gfx, 6) ? fg : bg]; - *p++ = palette[BIT(gfx, 5) ? fg : bg]; - *p++ = palette[BIT(gfx, 4) ? fg : bg]; - *p++ = palette[BIT(gfx, 3) ? fg : bg]; - *p++ = palette[BIT(gfx, 2) ? fg : bg]; - *p++ = palette[BIT(gfx, 1) ? fg : bg]; - *p++ = palette[BIT(gfx, 0) ? fg : bg]; - } -} - -WRITE8_MEMBER( pasopia_state::pasopia_ctrl_w ) -{ - m_ram_bank = BIT(data, 1); - membank("bank1")->set_entry(m_ram_bank); -} - -static ADDRESS_MAP_START(pasopia_map, AS_PROGRAM, 8, pasopia_state) - AM_RANGE(0x0000,0x7fff) AM_READ_BANK("bank1") AM_WRITE_BANK("bank2") - AM_RANGE(0x8000,0xffff) AM_RAM -ADDRESS_MAP_END - - -static ADDRESS_MAP_START(pasopia_io, AS_IO, 8, pasopia_state) - ADDRESS_MAP_UNMAP_HIGH - ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0x00,0x03) AM_DEVREADWRITE("ppi8255_0", i8255_device, read, write) - AM_RANGE(0x08,0x0b) AM_DEVREADWRITE("ppi8255_1", i8255_device, read, write) - AM_RANGE(0x10,0x10) AM_DEVREADWRITE("crtc", mc6845_device, status_r, address_w) - AM_RANGE(0x11,0x11) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w) -// 0x18 - 0x1b pac2 -// 0x1c - 0x1f something - AM_RANGE(0x20,0x23) AM_DEVREADWRITE("ppi8255_2", i8255_device, read, write) - AM_RANGE(0x28,0x2b) AM_DEVREADWRITE("z80ctc", z80ctc_device, read, write) - AM_RANGE(0x30,0x33) AM_DEVREADWRITE("z80pio", z80pio_device, read, write) -// 0x38 printer - AM_RANGE(0x3c,0x3c) AM_WRITE(pasopia_ctrl_w) -ADDRESS_MAP_END - -/* Input ports */ -static INPUT_PORTS_START( pasopia ) - PASOPIA_KEYBOARD -INPUT_PORTS_END - -void pasopia_state::machine_start() -{ - m_p_vram = memregion("vram")->base(); - m_hblank = 0; - membank("bank1")->set_entry(0); - membank("bank2")->set_entry(0); -} - -void pasopia_state::machine_reset() -{ -} - -WRITE8_MEMBER( pasopia_state::vram_addr_lo_w ) -{ - m_vram_addr = (m_vram_addr & 0x3f00) | data; -} - -WRITE8_MEMBER( pasopia_state::vram_latch_w ) -{ - m_vram_latch = data; -} - -READ8_MEMBER( pasopia_state::vram_latch_r ) -{ - return m_p_vram[m_vram_addr]; -} - -READ8_MEMBER( pasopia_state::portb_1_r ) -{ - /* - x--- ---- attribute latch - -x-- ---- hblank - --x- ---- vblank - ---x ---- LCD system mode, active low - */ - UINT8 grph_latch,lcd_mode; - - m_hblank ^= 0x40; //TODO - grph_latch = (m_p_vram[m_vram_addr | 0x4000] & 0x80); - lcd_mode = 0x10; - - return m_hblank | lcd_mode | grph_latch; //bit 4: LCD mode -} - - -WRITE8_MEMBER( pasopia_state::vram_addr_hi_w ) -{ - m_attr_latch = (data & 0x80) | (m_attr_latch & 0x7f); - if ( BIT(data, 6) && !m_video_wl ) - { - m_p_vram[m_vram_addr] = m_vram_latch; - m_p_vram[m_vram_addr | 0x4000] = m_attr_latch; - } - - m_video_wl = BIT(data, 6); - m_vram_addr = (m_vram_addr & 0xff) | ((data & 0x3f) << 8); -} - -WRITE8_MEMBER( pasopia_state::screen_mode_w ) -{ - //m_gfx_mode = (data & 0xe0) >> 5; unused variable - m_attr_latch = (m_attr_latch & 0x80) | (data & 7); - printf("Screen Mode=%02x\n",data); -} - -READ8_MEMBER( pasopia_state::rombank_r ) -{ - return (m_ram_bank) ? 4 : 0; -} - -READ8_MEMBER( pasopia_state::mux_r ) -{ - return m_mux_data; -} - -READ8_MEMBER( pasopia_state::keyb_r ) -{ - const char *const keynames[3][4] = { { "KEY0", "KEY1", "KEY2", "KEY3" }, - { "KEY4", "KEY5", "KEY6", "KEY7" }, - { "KEY8", "KEY9", "KEYA", "KEYB" } }; - int i,j; - UINT8 res; - - res = 0; - for(j=0;j<3;j++) - { - if(m_mux_data & 0x10 << j) - { - for(i=0;i<4;i++) - { - if(m_mux_data & 1 << i) - res |= ioport(keynames[j][i])->read(); - } - } - } - - return res ^ 0xff; -} - -WRITE8_MEMBER( pasopia_state::mux_w ) -{ - m_mux_data = data; -} - -static const gfx_layout p7_chars_8x8 = -{ - 8,8, - RGN_FRAC(1,1), - 1, - { 0 }, - { 0, 1, 2, 3, 4, 5, 6, 7 }, - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, - 8*8 -}; - -static GFXDECODE_START( pasopia ) - GFXDECODE_ENTRY( "chargen", 0x0000, p7_chars_8x8, 0, 4 ) -GFXDECODE_END - -static const z80_daisy_config pasopia_daisy[] = -{ - { "z80ctc" }, - { "z80pio" }, -// { "upd765" }, /* TODO */ - { NULL } -}; - - - -DRIVER_INIT_MEMBER(pasopia_state,pasopia) -{ -/* -We preset all banks here, so that bankswitching will incur no speed penalty. -0000 indicates ROMs, 10000 indicates RAM. -*/ - UINT8 *p_ram = memregion("maincpu")->base(); - membank("bank1")->configure_entries(0, 2, &p_ram[0x00000], 0x10000); - membank("bank2")->configure_entry(0, &p_ram[0x10000]); - - machine().scheduler().timer_pulse(attotime::from_hz(500), timer_expired_delegate(FUNC(pasopia_state::pio_timer),this)); -} - -static MACHINE_CONFIG_START( pasopia, pasopia_state ) - /* basic machine hardware */ - MCFG_CPU_ADD("maincpu", Z80, 4000000) - MCFG_CPU_PROGRAM_MAP(pasopia_map) - MCFG_CPU_IO_MAP(pasopia_io) - MCFG_CPU_CONFIG(pasopia_daisy) - - /* video hardware */ - MCFG_SCREEN_ADD("screen", RASTER) - MCFG_SCREEN_REFRESH_RATE(60) - MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ - MCFG_SCREEN_SIZE(640, 480) - MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1) - MCFG_SCREEN_UPDATE_DEVICE("crtc", h46505_device, screen_update) - MCFG_GFXDECODE_ADD("gfxdecode", "palette", pasopia) - MCFG_PALETTE_ADD("palette", 8) - - /* Devices */ - MCFG_MC6845_ADD("crtc", H46505, "screen", XTAL_4MHz/4) /* unknown clock, hand tuned to get ~60 fps */ - MCFG_MC6845_SHOW_BORDER_AREA(false) - MCFG_MC6845_CHAR_WIDTH(8) - MCFG_MC6845_UPDATE_ROW_CB(pasopia_state, crtc_update_row) - - MCFG_DEVICE_ADD("ppi8255_0", I8255A, 0) - MCFG_I8255_OUT_PORTA_CB(WRITE8(pasopia_state, vram_addr_lo_w)) - MCFG_I8255_OUT_PORTB_CB(WRITE8(pasopia_state, vram_latch_w)) - MCFG_I8255_IN_PORTC_CB(READ8(pasopia_state, vram_latch_r)) - - MCFG_DEVICE_ADD("ppi8255_1", I8255A, 0) - MCFG_I8255_OUT_PORTA_CB(WRITE8(pasopia_state, screen_mode_w)) - MCFG_I8255_IN_PORTB_CB(READ8(pasopia_state, portb_1_r)) - MCFG_I8255_OUT_PORTC_CB(WRITE8(pasopia_state, vram_addr_hi_w)) - - MCFG_DEVICE_ADD("ppi8255_2", I8255A, 0) - MCFG_I8255_IN_PORTC_CB(READ8(pasopia_state, rombank_r)) - - MCFG_DEVICE_ADD("z80ctc", Z80CTC, XTAL_4MHz) - MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) - MCFG_Z80CTC_ZC0_CB(DEVWRITELINE("z80ctc", z80ctc_device, trg1)) - MCFG_Z80CTC_ZC1_CB(DEVWRITELINE("z80ctc", z80ctc_device, trg2)) - MCFG_Z80CTC_ZC2_CB(DEVWRITELINE("z80ctc", z80ctc_device, trg3)) - - MCFG_DEVICE_ADD("z80pio", Z80PIO, XTAL_4MHz) - MCFG_Z80PIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) - MCFG_Z80PIO_IN_PA_CB(READ8(pasopia_state, mux_r)) - MCFG_Z80PIO_OUT_PA_CB(WRITE8(pasopia_state, mux_w)) - MCFG_Z80PIO_IN_PB_CB(READ8(pasopia_state, keyb_r)) -MACHINE_CONFIG_END - -/* ROM definition */ -ROM_START( pasopia ) - ROM_REGION( 0x18000, "maincpu", 0 ) - ROM_LOAD( "tbasic.rom", 0x0000, 0x8000, CRC(f53774ff) SHA1(bbec45a3bad8d184505cc6fe1f6e2e60a7fb53f2)) - - ROM_REGION( 0x0800, "chargen", 0 ) - ROM_LOAD( "font.rom", 0x0000, 0x0800, BAD_DUMP CRC(a91c45a9) SHA1(a472adf791b9bac3dfa6437662e1a9e94a88b412)) //stolen from pasopia7 - - ROM_REGION( 0x8000, "vram", ROMREGION_ERASE00 ) -ROM_END - -/* Driver */ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ -COMP( 1986, pasopia, 0, 0, pasopia, pasopia, pasopia_state, pasopia, "Toshiba", "Pasopia", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |