// license:BSD-3-Clause // copyright-holders:Angelo Salese /*************************************************************************** Multi 8 (c) 1983 Mitsubishi preliminary driver by Angelo Salese TODO: - dunno how to trigger the text color mode in BASIC, I just modify $f0b1 to 1 for now - bitmap B/W mode is untested - keyboard ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/clock.h" #include "machine/i8251.h" #include "machine/pit8253.h" #include "machine/i8255.h" #include "machine/pic8259.h" #include "machine/timer.h" #include "machine/upd765.h" #include "sound/2203intf.h" #include "sound/beep.h" #include "video/mc6845.h" #include "emupal.h" #include "screen.h" #include "speaker.h" class multi8_state : public driver_device { public: multi8_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_p_chargen(*this, "chargen") , m_ppi(*this, "ppi") , m_crtc(*this, "crtc") , m_beeper(*this, "beeper") , m_palette(*this, "palette") , m_aysnd(*this, "aysnd") { } void multi8(machine_config &config); private: DECLARE_READ8_MEMBER(key_input_r); DECLARE_READ8_MEMBER(key_status_r); DECLARE_READ8_MEMBER(vram_r); DECLARE_WRITE8_MEMBER(vram_w); DECLARE_READ8_MEMBER(pal_r); DECLARE_WRITE8_MEMBER(pal_w); DECLARE_READ8_MEMBER(kanji_r); DECLARE_WRITE8_MEMBER(kanji_w); DECLARE_READ8_MEMBER(porta_r); DECLARE_WRITE8_MEMBER(portb_w); DECLARE_WRITE8_MEMBER(portc_w); DECLARE_WRITE8_MEMBER(ym2203_porta_w); DECLARE_READ8_MEMBER(ay8912_0_r); DECLARE_READ8_MEMBER(ay8912_1_r); TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback); MC6845_UPDATE_ROW(crtc_update_row); void multi8_io(address_map &map); void multi8_mem(address_map &map); uint8_t *m_p_vram; uint8_t *m_p_wram; uint8_t *m_p_kanji; uint8_t m_mcu_init; uint8_t m_keyb_press; uint8_t m_keyb_press_flag; uint8_t m_shift_press_flag; uint8_t m_display_reg; uint8_t m_vram_bank; uint8_t m_pen_clut[8]; uint8_t m_bw_mode; uint16_t m_knj_addr; virtual void machine_start() override; virtual void machine_reset() override; virtual void video_start() override; required_device m_maincpu; required_region_ptr m_p_chargen; required_device m_ppi; required_device m_crtc; required_device m_beeper; required_device m_palette; required_device m_aysnd; }; void multi8_state::video_start() { m_keyb_press = m_keyb_press_flag = m_shift_press_flag = m_display_reg = 0; for (m_bw_mode = 0; m_bw_mode < 8; m_bw_mode++) m_pen_clut[m_bw_mode]=0; m_vram_bank = 8; m_bw_mode = 0; } MC6845_UPDATE_ROW( multi8_state::crtc_update_row ) { const rgb_t *palette = m_palette->palette()->entry_list_raw(); uint8_t i,chr,gfx=0,color,pen,attr; uint16_t mem = y*80,x; uint32_t *p = &bitmap.pix32(y); for(x = 0; x < x_count; x++) { for(i = 0; i < 8; i++) { u8 pen_b = BIT(m_p_vram[mem | 0x0000], 7-i); u8 pen_r = BIT(m_p_vram[mem | 0x4000], 7-i); u8 pen_g = BIT(m_p_vram[mem | 0x8000], 7-i); u8 color = (pen_b) | (pen_r << 1) | (pen_g << 2); if (m_bw_mode) { pen_b = BIT(m_display_reg, 0) ? pen_b : 0; pen_r = BIT(m_display_reg, 1) ? pen_r : 0; pen_g = BIT(m_display_reg, 2) ? pen_g : 0; color = (pen_b | pen_r | pen_g) ? 7 : 0; } *p++ = palette[color]; } mem++; } u8 x_width = BIT(m_display_reg, 6) ? 80 : 40; u8 x_step = BIT(m_display_reg, 6) ? 1 : 2; mem = 0xc000 + ma; p = &bitmap.pix32(y); for(x = 0; x < x_width; x++) { chr = m_p_vram[mem]; attr = m_p_vram[mem | 0x800]; color = (BIT(m_display_reg, 7)) ? 7 : (attr & 0x07); gfx = BIT(attr, 5); if (cursor_x >= 0) gfx ^= (x == (cursor_x / x_step)); if (gfx) gfx = 0xff; if (ra < 8) gfx ^= m_p_chargen[(chr << 3) | ra]; for(i = 0; i < 8; i++) { pen = BIT(gfx, 7-i) ? color : 0; if (x_step == 1) { if (pen) *p = palette[color]; p++; } else { if (pen) *p = palette[color]; p++; if (pen) *p = palette[color]; p++; } } mem += x_step; } } READ8_MEMBER( multi8_state::key_input_r ) { if (m_mcu_init == 0) { m_mcu_init++; return 3; } m_keyb_press_flag &= 0xfe; return m_keyb_press; } READ8_MEMBER( multi8_state::key_status_r ) { if (m_mcu_init == 0) return 1; else if (m_mcu_init == 1) { m_mcu_init++; return 1; } else if (m_mcu_init == 2) { m_mcu_init++; return 0; } return m_keyb_press_flag | (m_shift_press_flag << 7); } READ8_MEMBER( multi8_state::vram_r ) { uint8_t res; if (!BIT(m_vram_bank, 4)) //select plain work ram return m_p_wram[offset]; res = 0xff; if (!BIT(m_vram_bank, 0)) res &= m_p_vram[offset | 0x0000]; if (!BIT(m_vram_bank, 1)) res &= m_p_vram[offset | 0x4000]; if (!BIT(m_vram_bank, 2)) res &= m_p_vram[offset | 0x8000]; if (!BIT(m_vram_bank, 3)) res &= m_p_vram[offset | 0xc000]; return res; } WRITE8_MEMBER( multi8_state::vram_w ) { if (!BIT(m_vram_bank, 4)) //select plain work ram { m_p_wram[offset] = data; return; } if (!BIT(m_vram_bank, 0)) m_p_vram[offset | 0x0000] = data; if (!BIT(m_vram_bank, 1)) m_p_vram[offset | 0x4000] = data; if (!BIT(m_vram_bank, 2)) m_p_vram[offset | 0x8000] = data; if (!BIT(m_vram_bank, 3)) m_p_vram[offset | 0xc000] = data; } READ8_MEMBER( multi8_state::pal_r ) { return m_pen_clut[offset]; } WRITE8_MEMBER( multi8_state::pal_w ) { m_pen_clut[offset] = data; uint8_t i; for(i=0;i<8;i++) { if (m_pen_clut[i]) { m_bw_mode = 0; return; } m_bw_mode = 1; } } READ8_MEMBER(multi8_state::ay8912_0_r){ return m_aysnd->data_r(space, 0); } READ8_MEMBER(multi8_state::ay8912_1_r){ return m_aysnd->data_r(space, 1); } READ8_MEMBER( multi8_state::kanji_r ) { return m_p_kanji[(m_knj_addr << 1) | (offset & 1)]; } WRITE8_MEMBER( multi8_state::kanji_w ) { m_knj_addr = (offset == 0) ? (m_knj_addr & 0xff00) | (data & 0xff) : (m_knj_addr & 0x00ff) | (data << 8); } void multi8_state::multi8_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x7fff).rom(); map(0x8000, 0xbfff).rw(FUNC(multi8_state::vram_r), FUNC(multi8_state::vram_w)); map(0xc000, 0xffff).ram(); } void multi8_state::multi8_io(address_map &map) { // ADDRESS_MAP_UNMAP_HIGH map.global_mask(0xff); map(0x00, 0x00).r(FUNC(multi8_state::key_input_r)); //keyboard map(0x01, 0x01).r(FUNC(multi8_state::key_status_r)); //keyboard map(0x18, 0x19).w(m_aysnd, FUNC(ay8910_device::address_data_w)); map(0x18, 0x18).r(FUNC(multi8_state::ay8912_0_r)); map(0x1a, 0x1a).r(FUNC(multi8_state::ay8912_1_r)); map(0x1c, 0x1c).rw(m_crtc, FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w)); map(0x1d, 0x1d).rw(m_crtc, FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); map(0x20, 0x21).rw("uart", FUNC(i8251_device::read), FUNC(i8251_device::write)); //cmt map(0x24, 0x27).rw("pit", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); //pit map(0x28, 0x2b).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x2c, 0x2d).rw("pic", FUNC(pic8259_device::read), FUNC(pic8259_device::write)); //i8259 map(0x30, 0x37).rw(FUNC(multi8_state::pal_r), FUNC(multi8_state::pal_w)); map(0x40, 0x41).rw(FUNC(multi8_state::kanji_r), FUNC(multi8_state::kanji_w)); //kanji regs // AM_RANGE(0x70, 0x74) //upd765a fdc // AM_RANGE(0x78, 0x78) //memory banking } /* Input ports */ static INPUT_PORTS_START( multi8 ) PORT_START("VBLANK") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_CUSTOM) PORT_VBLANK("screen") PORT_START("key1") //0x00-0x1f PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_UNUSED) //0x00 null PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_UNUSED) //0x01 soh PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_UNUSED) //0x02 stx PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_UNUSED) //0x03 etx PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_UNUSED) //0x04 etx PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_UNUSED) //0x05 eot PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_UNUSED) //0x06 enq PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_UNUSED) //0x07 ack PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_UNUSED) //0x0a PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_UNUSED) //0x0b lf PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x0c vt PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(27) PORT_BIT(0x00004000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x0e cr PORT_BIT(0x00008000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x0f so PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x10 si PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x11 dle PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x12 dc1 PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x13 dc2 PORT_BIT(0x00100000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("HOME") PORT_CODE(KEYCODE_HOME) PORT_BIT(0x00200000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x15 dc4 PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x17 syn PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x18 etb PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT) PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x1a em PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("ESC") PORT_CHAR(27) PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x1c ??? PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x1d fs PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x1e gs PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x1f us PORT_START("key2") //0x20-0x3f PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_UNUSED) //0x21 ! PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_UNUSED) //0x22 " PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_UNUSED) //0x23 # PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_UNUSED) //0x24 $ PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_UNUSED) //0x25 % PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_UNUSED) //0x26 & PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_UNUSED) //0x27 ' PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_UNUSED) //0x28 ( PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_UNUSED) //0x29 ) PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2a * PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_UNUSED) PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2c , PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_BIT(0x00004000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2e . PORT_BIT(0x00008000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2f / PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT(0x00100000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_BIT(0x00200000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(":") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("<") PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('<') PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x3d = PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x3e > PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x3f ? PORT_START("key3") //0x40-0x5f PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT(0x00004000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT(0x00008000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT(0x00100000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT(0x00200000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[') PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_UNUSED) PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']') PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("^") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("_") PORT_START("key_modifiers") PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("KANA") PORT_CODE(KEYCODE_RCONTROL) PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CAPS") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("GRPH") PORT_CODE(KEYCODE_LALT) INPUT_PORTS_END TIMER_DEVICE_CALLBACK_MEMBER(multi8_state::keyboard_callback) { static const char *const portnames[3] = { "key1","key2","key3" }; int i,port_i,scancode; uint8_t keymod = ioport("key_modifiers")->read() & 0x1f; scancode = 0; m_shift_press_flag = ((keymod & 0x02) >> 1); for(port_i=0;port_i<3;port_i++) { for(i=0;i<32;i++) { if((ioport(portnames[port_i])->read()>>i) & 1) { //key_flag = 1; if(!m_shift_press_flag) // shift not pressed { if(scancode >= 0x41 && scancode < 0x5b) scancode += 0x20; // lowercase } else { if(scancode >= 0x31 && scancode < 0x3a) scancode -= 0x10; if(scancode == 0x30) scancode = 0x3d; if(scancode == 0x3b) scancode = 0x2c; if(scancode == 0x3a) scancode = 0x2e; if(scancode == 0x5b) scancode = 0x2b; if(scancode == 0x3c) scancode = 0x3e; } m_keyb_press = scancode; m_keyb_press_flag = 1; return; } scancode++; } } } static const gfx_layout multi8_charlayout = { 8,8, RGN_FRAC(1,1), 1, { 0 }, { STEP8(0,1) }, { STEP8(0,8) }, 8*8 }; static const gfx_layout multi8_kanjilayout = { 16,16, RGN_FRAC(1,1), 1, { 0 }, { STEP16(0,1) }, { STEP16(0,16) }, 16*16 }; static GFXDECODE_START( gfx_multi8 ) GFXDECODE_ENTRY( "chargen", 0x0000, multi8_charlayout, 0, 1 ) GFXDECODE_ENTRY( "kanji", 0x0000, multi8_kanjilayout, 0, 1 ) GFXDECODE_END READ8_MEMBER( multi8_state::porta_r ) { int vsync = (ioport("VBLANK")->read() & 0x1) << 5; /* -x-- ---- kanji rom is present (0) yes --x- ---- vsync ---- --x- fdc rom is present (0) yes */ return 0x9f | vsync | 0x00; } WRITE8_MEMBER( multi8_state::portb_w ) { /* x--- ---- color mode -x-- ---- screen width (80 / 40) ---- x--- memory bank status ---- -xxx page screen graphics in B/W mode */ m_display_reg = data; } WRITE8_MEMBER( multi8_state::portc_w ) { // printf("Port C w = %02x\n",data); m_vram_bank = data & 0x1f; if (data & 0x20 && data != 0xff) printf("Work RAM bank selected!\n"); // fatalerror("Work RAM bank selected\n"); } WRITE8_MEMBER( multi8_state::ym2203_porta_w ) { m_beeper->set_state(BIT(data, 3)); } void multi8_state::machine_start() { m_p_vram = memregion("vram")->base(); m_p_wram = memregion("wram")->base(); m_p_kanji = memregion("kanji")->base(); } void multi8_state::machine_reset() { m_beeper->set_state(0); m_mcu_init = 0; } MACHINE_CONFIG_START(multi8_state::multi8) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", Z80, XTAL(4'000'000)) MCFG_DEVICE_PROGRAM_MAP(multi8_mem) MCFG_DEVICE_IO_MAP(multi8_io) /* 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, 200) MCFG_SCREEN_VISIBLE_AREA(0, 320-1, 0, 200-1) MCFG_SCREEN_UPDATE_DEVICE("crtc", mc6845_device, screen_update) MCFG_PALETTE_ADD_3BIT_BRG("palette") MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_multi8) /* Audio */ SPEAKER(config, "mono").front_center(); AY8912(config, m_aysnd, 1500000); //unknown clock / divider m_aysnd->port_a_write_callback().set(FUNC(multi8_state::ym2203_porta_w)); m_aysnd->add_route(ALL_OUTPUTS, "mono", 0.50); MCFG_DEVICE_ADD("beeper", BEEP, 1200) // guesswork MCFG_SOUND_ROUTE(ALL_OUTPUTS,"mono",0.50) /* devices */ MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard_timer", multi8_state, keyboard_callback, attotime::from_hz(240/32)) H46505(config, m_crtc, XTAL(3'579'545)/2); /* unknown clock, hand tuned to get ~60 fps */ 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(multi8_state::crtc_update_row), this); I8255(config, m_ppi); m_ppi->in_pa_callback().set(FUNC(multi8_state::porta_r)); m_ppi->out_pb_callback().set(FUNC(multi8_state::portb_w)); m_ppi->out_pc_callback().set(FUNC(multi8_state::portc_w)); clock_device &uart_clock(CLOCK(config, "uart_clock", 153600)); uart_clock.signal_handler().set("uart", FUNC(i8251_device::write_txc)); uart_clock.signal_handler().append("uart", FUNC(i8251_device::write_rxc)); I8251(config, "uart", 0); // for cassette PIT8253(config, "pit", 0); PIC8259(config, "pic", 0); //UPD765A(config, "fdc", false, true); //MCFG_FLOPPY_DRIVE_ADD("fdc:0", multi8_floppies, "525hd", floppy_image_device::default_floppy_formats) MACHINE_CONFIG_END /* ROM definition */ ROM_START( multi8 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "basic.rom", 0x0000, 0x8000, CRC(2131a3a8) SHA1(0f5a565ecfbf79237badbf9011dcb374abe74a57)) ROM_REGION( 0x0800, "chargen", 0 ) ROM_LOAD( "font.rom", 0x0000, 0x0800, BAD_DUMP CRC(08f9ed0e) SHA1(57480510fb30af1372df5a44b23066ca61c6f0d9)) ROM_REGION( 0x20000, "kanji", 0 ) ROM_LOAD( "kanji.rom", 0x0000, 0x20000, BAD_DUMP CRC(c3cb3ff9) SHA1(7173cc5053a281d73cfecfacd31442e21ee7474a)) ROM_REGION( 0x0100, "mcu", ROMREGION_ERASEFF ) ROM_LOAD( "kbd.rom", 0x0000, 0x0100, NO_DUMP ) ROM_REGION( 0x1000, "fdc_bios", 0 ) ROM_LOAD( "disk.rom", 0x0000, 0x1000, NO_DUMP ) ROM_REGION( 0x10000, "vram", ROMREGION_ERASE00 ) ROM_REGION( 0x4000, "wram", ROMREGION_ERASEFF ) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1983, multi8, 0, 0, multi8, multi8, multi8_state, empty_init, "Mitsubishi", "Multi 8 (Mitsubishi)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)