// license:MAME // 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 "sound/2203intf.h" #include "video/mc6845.h" #include "machine/i8255.h" #include "sound/beep.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_ppi(*this, "ppi8255_0"), m_crtc(*this, "crtc"), m_beeper(*this, "beeper") { } required_device m_maincpu; required_device m_ppi; required_device m_crtc; required_device m_beeper; DECLARE_WRITE8_MEMBER(multi8_6845_w); DECLARE_READ8_MEMBER(key_input_r); DECLARE_READ8_MEMBER(key_status_r); DECLARE_READ8_MEMBER(multi8_vram_r); DECLARE_WRITE8_MEMBER(multi8_vram_w); DECLARE_READ8_MEMBER(pal_r); DECLARE_WRITE8_MEMBER(pal_w); DECLARE_READ8_MEMBER(multi8_kanji_r); DECLARE_WRITE8_MEMBER(multi8_kanji_w); DECLARE_READ8_MEMBER(porta_r); DECLARE_WRITE8_MEMBER(portb_w); DECLARE_WRITE8_MEMBER(portc_w); DECLARE_WRITE8_MEMBER(ym2203_porta_w); UINT8 *m_p_vram; UINT8 *m_p_wram; UINT8 *m_p_kanji; UINT8 *m_p_chargen; UINT8 m_mcu_init; UINT8 m_keyb_press; UINT8 m_keyb_press_flag; UINT8 m_shift_press_flag; UINT8 m_display_reg; UINT8 m_crtc_vreg[0x100],m_crtc_index; UINT8 m_vram_bank; UINT8 m_pen_clut[8]; UINT8 m_bw_mode; UINT16 m_knj_addr; DECLARE_READ8_MEMBER(ay8912_0_r); DECLARE_READ8_MEMBER(ay8912_1_r); virtual void machine_start(); virtual void machine_reset(); virtual void video_start(); DECLARE_PALETTE_INIT(multi8); UINT32 screen_update_multi8(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback); void multi8_draw_pixel(bitmap_ind16 &bitmap,int y,int x,UINT8 pen,UINT8 width); }; #define mc6845_h_char_total (m_crtc_vreg[0]) #define mc6845_h_display (m_crtc_vreg[1]) #define mc6845_h_sync_pos (m_crtc_vreg[2]) #define mc6845_sync_width (m_crtc_vreg[3]) #define mc6845_v_char_total (m_crtc_vreg[4]) #define mc6845_v_total_adj (m_crtc_vreg[5]) #define mc6845_v_display (m_crtc_vreg[6]) #define mc6845_v_sync_pos (m_crtc_vreg[7]) #define mc6845_mode_ctrl (m_crtc_vreg[8]) #define mc6845_tile_height (m_crtc_vreg[9]+1) #define mc6845_cursor_y_start (m_crtc_vreg[0x0a]) #define mc6845_cursor_y_end (m_crtc_vreg[0x0b]) #define mc6845_start_addr (((m_crtc_vreg[0x0c]<<8) & 0x3f00) | (m_crtc_vreg[0x0d] & 0xff)) #define mc6845_cursor_addr (((m_crtc_vreg[0x0e]<<8) & 0x3f00) | (m_crtc_vreg[0x0f] & 0xff)) #define mc6845_light_pen_addr (((m_crtc_vreg[0x10]<<8) & 0x3f00) | (m_crtc_vreg[0x11] & 0xff)) #define mc6845_update_addr (((m_crtc_vreg[0x12]<<8) & 0x3f00) | (m_crtc_vreg[0x13] & 0xff)) 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; m_p_chargen = memregion("chargen")->base(); } void multi8_state::multi8_draw_pixel(bitmap_ind16 &bitmap,int y,int x,UINT8 pen,UINT8 width) { if(!machine().first_screen()->visible_area().contains(x, y)) return; if(width) { bitmap.pix16(y, x*2+0) = pen; bitmap.pix16(y, x*2+1) = pen; } else bitmap.pix16(y, x) = pen; } UINT32 multi8_state::screen_update_multi8(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { int x,y,count; UINT8 x_width; UINT8 xi,yi; count = 0x0000; x_width = (m_display_reg & 0x40) ? 80 : 40; for(y=0; y<200; y++) { for(x=0; x<80; x++) { for(xi=0; xi<8; xi++) { int pen_r,pen_g,pen_b,color; pen_b = (m_p_vram[count | 0x0000] >> (7-xi)) & 1; pen_r = (m_p_vram[count | 0x4000] >> (7-xi)) & 1; pen_g = (m_p_vram[count | 0x8000] >> (7-xi)) & 1; if (m_bw_mode) { pen_b = (m_display_reg & 1) ? pen_b : 0; pen_r = (m_display_reg & 2) ? pen_r : 0; pen_g = (m_display_reg & 4) ? pen_g : 0; color = ((pen_b) | (pen_r) | (pen_g)) ? 7 : 0; } else color = (pen_b) | (pen_r << 1) | (pen_g << 2); multi8_draw_pixel(bitmap, y, x*8+xi,m_pen_clut[color], 0); } count++; } } count = 0xc000; for(y=0;y<25;y++) { for(x=0; x> (7-xi) & 1) ? 0 : color; else pen = (m_p_chargen[tile*8+yi] >> (7-xi) & 1) ? color : 0; if(pen) multi8_draw_pixel(bitmap, y*mc6845_tile_height+yi, x*8+xi, pen, (m_display_reg & 0x40) == 0x00); } } // m_gfxdecode->gfx(0)->opaque(bitmap,cliprect, tile,color >> 5, 0, 0, x*8, y*8); // draw cursor if(mc6845_cursor_addr+0xc000 == count) { int xc,yc,cursor_on; cursor_on = 0; switch(mc6845_cursor_y_start & 0x60) { case 0x00: cursor_on = 1; break; //always on case 0x20: cursor_on = 0; break; //always off case 0x40: if(machine().first_screen()->frame_number() & 0x10) { cursor_on = 1; } break; //fast blink case 0x60: if(machine().first_screen()->frame_number() & 0x20) { cursor_on = 1; } break; //slow blink } if(cursor_on) { for (yc=0; yc<(mc6845_tile_height-(mc6845_cursor_y_start & 7)); yc++) { for (xc=0; xc<8; xc++) multi8_draw_pixel(bitmap, y*mc6845_tile_height+yc, x*8+xc,0x07,(m_display_reg & 0x40) == 0x00); } } } (m_display_reg & 0x40) ? count++ : count+=2; } } return 0; } WRITE8_MEMBER( multi8_state::multi8_6845_w ) { if (!offset) { m_crtc_index = data; m_crtc->address_w(space, offset, data); } else { m_crtc_vreg[m_crtc_index] = data; m_crtc->register_w(space, offset, data); } } 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::multi8_vram_r ) { UINT8 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::multi8_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 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 machine().device("aysnd")->data_r(space, 0); } READ8_MEMBER(multi8_state::ay8912_1_r){ return machine().device("aysnd")->data_r(space, 1); } READ8_MEMBER( multi8_state::multi8_kanji_r ) { return m_p_kanji[(m_knj_addr << 1) | (offset & 1)]; } WRITE8_MEMBER( multi8_state::multi8_kanji_w ) { m_knj_addr = (offset == 0) ? (m_knj_addr & 0xff00) | (data & 0xff) : (m_knj_addr & 0x00ff) | (data << 8); } static ADDRESS_MAP_START(multi8_mem, AS_PROGRAM, 8, multi8_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x7fff) AM_ROM AM_RANGE(0x8000, 0xbfff) AM_READWRITE( multi8_vram_r, multi8_vram_w ) AM_RANGE(0xc000, 0xffff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START(multi8_io, AS_IO, 8, multi8_state) // ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x00, 0x00) AM_READ(key_input_r) AM_WRITENOP//keyboard AM_RANGE(0x01, 0x01) AM_READ(key_status_r) AM_WRITENOP//keyboard AM_RANGE(0x18, 0x19) AM_DEVWRITE("aysnd", ay8910_device, address_data_w) AM_RANGE(0x18, 0x18) AM_READ(ay8912_0_r) AM_RANGE(0x1a, 0x1a) AM_READ(ay8912_1_r) AM_RANGE(0x1c, 0x1d) AM_WRITE(multi8_6845_w) // AM_RANGE(0x20, 0x21) //sio, cmt // AM_RANGE(0x24, 0x27) //pit AM_RANGE(0x28, 0x2b) AM_DEVREADWRITE("ppi8255_0", i8255_device, read, write) // AM_RANGE(0x2c, 0x2d) //i8259 AM_RANGE(0x30, 0x37) AM_READWRITE(pal_r,pal_w) AM_RANGE(0x40, 0x41) AM_READWRITE(multi8_kanji_r,multi8_kanji_w) //kanji regs // AM_RANGE(0x70, 0x74) //upd765a fdc // AM_RANGE(0x78, 0x78) //memory banking ADDRESS_MAP_END /* 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 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( multi8 ) GFXDECODE_ENTRY( "chargen", 0x0000, multi8_charlayout, 0, 1 ) GFXDECODE_ENTRY( "kanji", 0x0000, multi8_kanjilayout, 0, 1 ) GFXDECODE_END PALETTE_INIT_MEMBER(multi8_state, multi8) { UINT8 i; for(i=0; i<8; i++) palette.set_pen_color(i, pal1bit(i >> 1),pal1bit(i >> 2),pal1bit(i >> 0)); } 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((data & 0x08)); } 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_frequency(1200); //guesswork m_beeper->set_state(0); m_mcu_init = 0; } static MACHINE_CONFIG_START( multi8, multi8_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) MCFG_CPU_PROGRAM_MAP(multi8_mem) MCFG_CPU_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_DRIVER(multi8_state, screen_update_multi8) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 8) MCFG_PALETTE_INIT_OWNER(multi8_state, multi8) MCFG_GFXDECODE_ADD("gfxdecode", "palette", multi8) /* Audio */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_ADD("aysnd", AY8912, 1500000) //unknown clock / divider MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(multi8_state, ym2203_porta_w)) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) MCFG_SOUND_ADD("beeper", BEEP, 0) 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)) MCFG_MC6845_ADD("crtc", H46505, "screen", XTAL_3_579545MHz/2) /* unknown clock, hand tuned to get ~60 fps */ MCFG_MC6845_SHOW_BORDER_AREA(false) MCFG_MC6845_CHAR_WIDTH(8) MCFG_DEVICE_ADD("ppi8255_0", I8255, 0) MCFG_I8255_IN_PORTA_CB(READ8(multi8_state, porta_r)) MCFG_I8255_OUT_PORTB_CB(WRITE8(multi8_state, portb_w)) MCFG_I8255_OUT_PORTC_CB(WRITE8(multi8_state, portc_w)) 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 INIT COMPANY FULLNAME FLAGS */ COMP( 1983, multi8, 0, 0, multi8, multi8, driver_device, 0, "Mitsubishi", "Multi 8", GAME_NOT_WORKING | GAME_NO_SOUND)