// license:BSD-3-Clause // copyright-holders:Angelo Salese, AJR /*************************************************************************** Toshiba Pasopia Cassette works. Sound uses the beeper, and works. Try SOUND a,b where a=1-82, b=1-255. TODO: - machine emulation needs merging with Pasopia 7 (video emulation is completely different tho) - Centronics printer interface - FDC and other I/O expansions ****************************************************************************/ #include "emu.h" #include "includes/pasopia.h" #include "bus/pasopia/pac2.h" #include "bus/rs232/rs232.h" #include "cpu/z80/z80.h" #include "machine/i8255.h" #include "machine/z80ctc.h" #include "machine/z80pio.h" #include "video/mc6845.h" #include "imagedev/cassette.h" #include "sound/spkrdev.h" #include "speaker.h" #include "emupal.h" #include "screen.h" #include "softlist_dev.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_p_basic(*this, "basic") , m_p_chargen(*this, "chargen") , m_p_ram(*this, "ram") , m_ppi0(*this, "ppi0") , m_ppi1(*this, "ppi1") , m_ppi2(*this, "ppi2") , m_ctc(*this, "ctc") , m_pio(*this, "pio") , m_crtc(*this, "crtc") , m_palette(*this, "palette") , m_io_keyboard(*this, "KEY.%d", 0) , m_cass(*this, "cassette") , m_rs232(*this, "rs232") , m_speaker(*this, "speaker") { } void pasopia(machine_config &config); protected: virtual void machine_start() override; virtual void machine_reset() override; private: void pasopia_ctrl_w(u8 data); u8 memory_r(offs_t offset); void vram_addr_lo_w(u8 data); void vram_latch_w(u8 data); u8 vram_latch_r(); u8 portb_1_r(); u8 portb_2_r(); void porta_2_w(u8 data); void portc_2_w(u8 data); void vram_addr_hi_w(u8 data); void screen_mode_w(u8 data); u8 rombank_r(); u8 keyb_r(); void mux_w(u8 data); DECLARE_WRITE_LINE_MEMBER(speaker_w); MC6845_UPDATE_ROW(crtc_update_row); TIMER_CALLBACK_MEMBER(pio_timer); void pasopia_io(address_map &map); void pasopia_map(address_map &map); u8 m_hblank = 0; u16 m_vram_addr = 0; u16 m_vram_latch = 0; u8 m_gfx_mode = 0; u8 m_mux_data = 0; u8 m_porta_2 = 0; bool m_video_wl = false; bool m_ram_bank = false; bool m_spr_sw = false; u8 m_dclr = 0; emu_timer *m_pio_timer = nullptr; std::unique_ptr m_p_vram; required_device m_maincpu; required_region_ptr m_p_basic; required_region_ptr m_p_chargen; required_shared_ptr m_p_ram; required_device m_ppi0; required_device m_ppi1; required_device m_ppi2; required_device m_ctc; required_device m_pio; required_device m_crtc; required_device m_palette; required_ioport_array<12> m_io_keyboard; required_device m_cass; required_device m_rs232; required_device m_speaker; }; // 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()); } MC6845_UPDATE_ROW( pasopia_state::crtc_update_row ) { rgb_t const *const palette = m_palette->palette()->entry_list_raw(); rgb_t dclr = palette[m_dclr]; const rgb_t bclr = palette[m_gfx_mode & 0x07]; u32 *p = &bitmap.pix(y); const bool text = (m_gfx_mode & 0xc0) == 0; const u16 *const vram = &m_p_vram[text ? 0 : u16(BIT(m_gfx_mode, 7) ? ra & 7 : ra & 6) << 11]; for (u16 x = 0; x < x_count; x++) { const u16 chr = vram[(ma + x) & 0x7ff]; if ((chr & 0x1f8) == 0x0f8) { m_dclr = chr & 0x007; dclr = palette[m_dclr]; } if (x == cursor_x) { // Cursor is always white std::fill_n(p, 8, palette[7]); p += 8; } else if (BIT(m_gfx_mode, 6) && BIT(chr, 8)) { // DGR graphic characters: 3-bit colors for each half const rgb_t uclr(palette[BIT(chr, 4, 3)]); const rgb_t lclr(palette[BIT(chr, 0, 3)]); std::fill_n(p, 4, uclr); p += 4; std::fill_n(p, 4, lclr); p += 4; } else if (BIT(ra, 3) || (chr & 0x1f8) == 0x0f8) { std::fill_n(p, 8, bclr); p += 8; } else { // DHR graphic characters, normal or inverted text u8 gfx = BIT(chr, 8) && BIT(m_gfx_mode, 7) ? (chr & 0xff) : m_p_chargen[((chr & 0xff)<<3) | (ra & 7)]; if (BIT(chr, 8) && text) gfx ^= 0xff; for (u8 xi = 0; xi < 8; xi++) *p++ = BIT(gfx, 7-xi) ? dclr : bclr; } } } void pasopia_state::pasopia_ctrl_w(u8 data) { m_ram_bank = BIT(data, 1); } u8 pasopia_state::memory_r(offs_t offset) { if (offset < 0x8000 && !m_ram_bank) return m_p_basic[offset]; else return m_p_ram[offset]; } void pasopia_state::pasopia_map(address_map &map) { map(0x0000, 0xffff).r(FUNC(pasopia_state::memory_r)); map(0x0000, 0xffff).writeonly().share("ram"); } void pasopia_state::pasopia_io(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); map(0x00, 0x03).rw(m_ppi0, FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x08, 0x0b).rw(m_ppi1, FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x10, 0x10).rw(m_crtc, FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w)); map(0x11, 0x11).rw(m_crtc, FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); map(0x18, 0x1b).rw("dtfcst", FUNC(pasopia_pac2_slot_device::read), FUNC(pasopia_pac2_slot_device::write)); map(0x1c, 0x1f).rw("dtfunt", FUNC(pasopia_pac2_slot_device::read), FUNC(pasopia_pac2_slot_device::write)); map(0x20, 0x23).rw(m_ppi2, FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x28, 0x2b).rw(m_ctc, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); map(0x30, 0x33).rw(m_pio, FUNC(z80pio_device::read), FUNC(z80pio_device::write)); // 0x38 printer map(0x3c, 0x3c).w(FUNC(pasopia_state::pasopia_ctrl_w)); } /* Input ports */ static INPUT_PORTS_START( pasopia ) PASOPIA_KEYBOARD INPUT_PORTS_END void pasopia_state::machine_start() { m_p_vram = make_unique_clear(0x4000); m_pio_timer = timer_alloc(FUNC(pasopia_state::pio_timer), this); m_pio_timer->adjust(attotime::from_hz(50), 0, attotime::from_hz(50)); m_hblank = 0; m_spr_sw = false; m_dclr = 7; save_item(NAME(m_hblank)); save_item(NAME(m_vram_addr)); save_item(NAME(m_vram_latch)); save_item(NAME(m_gfx_mode)); save_item(NAME(m_mux_data)); save_item(NAME(m_porta_2)); save_item(NAME(m_video_wl)); save_item(NAME(m_ram_bank)); save_item(NAME(m_spr_sw)); save_item(NAME(m_dclr)); save_pointer(NAME(m_p_vram), 0x4000); } void pasopia_state::machine_reset() { m_porta_2 = 0xFF; m_cass->change_state(CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR); m_ram_bank = false; } void pasopia_state::vram_addr_lo_w(u8 data) { m_vram_addr = (m_vram_addr & 0x3f00) | data; if (!m_video_wl) m_p_vram[m_vram_addr] = m_vram_latch; } void pasopia_state::vram_latch_w(u8 data) { m_vram_latch = (m_vram_latch & 0x100) | data; if (!m_video_wl) m_p_vram[m_vram_addr] = m_vram_latch; } u8 pasopia_state::vram_latch_r() { return m_p_vram[m_vram_addr] & 0xff; } u8 pasopia_state::portb_1_r() { /* x--- ---- attribute latch -x-- ---- hblank --x- ---- vblank ---x ---- LCD system mode, active low */ u8 grph_latch,lcd_mode; m_hblank ^= 0x40; //TODO grph_latch = (m_p_vram[m_vram_addr] & 0x100) >> 1; lcd_mode = 0x10; return m_hblank | lcd_mode | grph_latch; //bit 4: LCD mode } u8 pasopia_state::portb_2_r() { u8 result = (m_cass->input() > +0.04) ? 0x20 : 0; result |= m_rs232->dcd_r() << 3; result |= m_rs232->dsr_r() << 2; result |= m_rs232->cts_r() << 1; result |= m_rs232->rxd_r() << 0; return result; } void pasopia_state::porta_2_w(u8 data) { m_cass->output(BIT(data, 4) ? -1.0 : +1.0); u8 changed = data ^ m_porta_2; m_porta_2 = data; if (BIT(changed, 5)) { m_cass->change_state(BIT(data, 5) ? CASSETTE_MOTOR_DISABLED : CASSETTE_MOTOR_ENABLED, CASSETTE_MASK_MOTOR); } } void pasopia_state::portc_2_w(u8 data) { m_rs232->write_dtr(BIT(data, 6)); m_rs232->write_rts(BIT(data, 5)); m_rs232->write_txd(BIT(data, 4)); } WRITE_LINE_MEMBER( pasopia_state::speaker_w ) { if (state) { m_spr_sw ^= 1; if (BIT(m_mux_data, 7)) m_speaker->level_w(m_spr_sw); } } void pasopia_state::vram_addr_hi_w(u8 data) { m_video_wl = BIT(data, 6); m_vram_addr = (m_vram_addr & 0xff) | ((data & 0x3f) << 8); m_vram_latch = u16(data & 0x80) << 1 | (m_vram_latch & 0xff); if (!m_video_wl) m_p_vram[m_vram_addr] = m_vram_latch; } void pasopia_state::screen_mode_w(u8 data) { if (BIT(m_gfx_mode, 5) != BIT(data, 5)) m_crtc->set_unscaled_clock(14.318181_MHz_XTAL / (BIT(data, 5) ? 8 : 16)); m_gfx_mode = data & 0xe7; } u8 pasopia_state::rombank_r() { return (m_ram_bank) ? 4 : 0; } u8 pasopia_state::keyb_r() { u8 data = 0xff; for (u8 i = 0; i < 3; i++) if (BIT(m_mux_data, i+4)) for (u8 j = 0; j < 4; j++) if (BIT(m_mux_data, j)) data &= m_io_keyboard[i*4+j]->read(); return data; } void pasopia_state::mux_w(u8 data) { m_mux_data = data; m_pio->port_b_write(keyb_r()); } 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( gfx_pasopia ) GFXDECODE_ENTRY( "chargen", 0x0000, p7_chars_8x8, 0, 4 ) GFXDECODE_END static const z80_daisy_config pasopia_daisy[] = { { "ctc" }, { "pio" }, // { "fdc" }, /* TODO */ { nullptr } }; void pasopia_state::pasopia(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, 15.9744_MHz_XTAL / 4); m_maincpu->set_addrmap(AS_PROGRAM, &pasopia_state::pasopia_map); m_maincpu->set_addrmap(AS_IO, &pasopia_state::pasopia_io); m_maincpu->set_daisy_config(pasopia_daisy); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_raw(14.318181_MHz_XTAL / 2, 456, 0, 296, 262, 0, 192); screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update)); GFXDECODE(config, "gfxdecode", m_palette, gfx_pasopia); PALETTE(config, m_palette, palette_device::BRG_3BIT); /* Devices */ HD6845S(config, m_crtc, 14.318181_MHz_XTAL / 16); m_crtc->set_screen("screen"); m_crtc->set_show_border_area(false); m_crtc->set_char_width(8); m_crtc->set_update_row_callback(FUNC(pasopia_state::crtc_update_row)); I8255A(config, m_ppi0); m_ppi0->out_pa_callback().set(FUNC(pasopia_state::vram_addr_lo_w)); m_ppi0->out_pb_callback().set(FUNC(pasopia_state::vram_latch_w)); m_ppi0->in_pc_callback().set(FUNC(pasopia_state::vram_latch_r)); I8255A(config, m_ppi1); m_ppi1->out_pa_callback().set(FUNC(pasopia_state::screen_mode_w)); m_ppi1->in_pb_callback().set(FUNC(pasopia_state::portb_1_r)); m_ppi1->out_pc_callback().set(FUNC(pasopia_state::vram_addr_hi_w)); I8255A(config, m_ppi2); m_ppi2->out_pa_callback().set(FUNC(pasopia_state::porta_2_w)); m_ppi2->in_pb_callback().set(FUNC(pasopia_state::portb_2_r)); m_ppi2->in_pc_callback().set(FUNC(pasopia_state::rombank_r)); m_ppi2->out_pc_callback().set(FUNC(pasopia_state::portc_2_w)); Z80CTC(config, m_ctc, 15.9744_MHz_XTAL / 4); m_ctc->intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); m_ctc->zc_callback<1>().set(FUNC(pasopia_state::speaker_w)); m_ctc->zc_callback<2>().set(m_ctc, FUNC(z80ctc_device::trg3)); Z80PIO(config, m_pio, 15.9744_MHz_XTAL / 4); m_pio->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); m_pio->out_pa_callback().set(FUNC(pasopia_state::mux_w)); m_pio->in_pb_callback().set(FUNC(pasopia_state::keyb_r)); /* sound hardware */ SPEAKER(config, "mono").front_center(); SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50); CASSETTE(config, m_cass); m_cass->set_default_state(CASSETTE_PLAY | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED); m_cass->add_route(ALL_OUTPUTS, "mono", 0.05); m_cass->set_interface("pasopia_cass"); PASOPIA_PAC2(config, "dtfcst", pac2_default_devices, nullptr); // "Data File Cassette" PASOPIA_PAC2(config, "dtfunt", pac2_default_devices, nullptr); // "Data File Unit" RS232_PORT(config, m_rs232, default_rs232_devices, nullptr); SOFTWARE_LIST(config, "cass_list").set_original("pasopia_cass"); } /* ROM definition */ ROM_START( pasopia ) ROM_REGION( 0x8000, "basic", 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_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1982, pasopia, 0, 0, pasopia, pasopia, pasopia_state, empty_init, "Toshiba", "Personal Computer Pasopia PA7010", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )