// license:LGPL-2.1+ // copyright-holders:Angelo Salese /************************************************************************************* SMC-777 (c) 1983 Sony driver by Angelo Salese TODO: - no real documentation, the entire driver is just a bunch of educated guesses ... - ROM/RAM bankswitch, it apparently happens after one instruction prefetching. We currently use an hackish implementation until the MAME/MESS framework can support that ... - keyboard input is very sluggish; - cursor stuck in Bird Crash; - add mc6845 features; - many other missing features; **************************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "sound/sn76496.h" #include "sound/beep.h" #include "video/mc6845.h" #include "machine/wd_fdc.h" #include "imagedev/flopdrv.h" #include "softlist.h" #define MASTER_CLOCK XTAL_4_028MHz #define mc6845_h_char_total (m_crtc_vreg[0]+1) #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]+1) #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)) class smc777_state : public driver_device { public: smc777_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_crtc(*this, "crtc"), m_fdc(*this, "fdc"), m_floppy0(*this, "fdc:0"), m_floppy1(*this, "fdc:1"), m_beeper(*this, "beeper"), m_gfxdecode(*this, "gfxdecode"), m_palette(*this, "palette") { } DECLARE_WRITE8_MEMBER(mc6845_w); DECLARE_READ8_MEMBER(vram_r); DECLARE_READ8_MEMBER(attr_r); DECLARE_READ8_MEMBER(pcg_r); DECLARE_WRITE8_MEMBER(vram_w); DECLARE_WRITE8_MEMBER(attr_w); DECLARE_WRITE8_MEMBER(pcg_w); DECLARE_READ8_MEMBER(fbuf_r); DECLARE_WRITE8_MEMBER(fbuf_w); DECLARE_READ8_MEMBER(key_r); DECLARE_WRITE8_MEMBER(key_w); DECLARE_WRITE8_MEMBER(border_col_w); DECLARE_READ8_MEMBER(system_input_r); DECLARE_WRITE8_MEMBER(system_output_w); DECLARE_WRITE8_MEMBER(color_mode_w); DECLARE_WRITE8_MEMBER(ramdac_w); DECLARE_READ8_MEMBER(display_reg_r); DECLARE_WRITE8_MEMBER(display_reg_w); DECLARE_READ8_MEMBER(smc777_mem_r); DECLARE_WRITE8_MEMBER(smc777_mem_w); DECLARE_READ8_MEMBER(irq_mask_r); DECLARE_WRITE8_MEMBER(irq_mask_w); DECLARE_PALETTE_INIT(smc777); UINT32 screen_update_smc777(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); INTERRUPT_GEN_MEMBER(vblank_irq); TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback); DECLARE_READ8_MEMBER(fdc_r); DECLARE_WRITE8_MEMBER(fdc_w); DECLARE_READ8_MEMBER(fdc_request_r); DECLARE_WRITE8_MEMBER(floppy_select_w); DECLARE_WRITE_LINE_MEMBER(fdc_intrq_w); DECLARE_WRITE_LINE_MEMBER(fdc_drq_w); protected: virtual void machine_start() override; virtual void machine_reset() override; virtual void video_start() override; private: required_device m_maincpu; required_device m_crtc; required_device m_fdc; required_device m_floppy0; required_device m_floppy1; required_device m_beeper; required_device m_gfxdecode; required_device m_palette; UINT8 *m_ipl_rom; std::unique_ptr m_work_ram; std::unique_ptr m_vram; std::unique_ptr m_attr; std::unique_ptr m_gvram; std::unique_ptr m_pcg; UINT8 m_keyb_press; UINT8 m_keyb_press_flag; UINT8 m_shift_press_flag; UINT8 m_backdrop_pen; UINT8 m_display_reg; UINT8 m_fdc_irq_flag; UINT8 m_fdc_drq_flag; UINT8 m_system_data; struct { UINT8 r,g,b; } m_pal; UINT8 m_raminh,m_raminh_pending_change; //bankswitch UINT8 m_raminh_prefetch; UINT8 m_irq_mask; UINT8 m_pal_mode; UINT8 m_keyb_cmd; UINT8 m_crtc_vreg[0x20]; UINT8 m_crtc_addr; }; /* TODO: correct calculation thru mc6845 regs */ #define CRTC_MIN_X 24*8 #define CRTC_MIN_Y 4*8 void smc777_state::video_start() { } UINT32 smc777_state::screen_update_smc777(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { int x,y,yi; UINT16 count; int x_width; // popmessage("%d %d %d %d",mc6845_v_char_total,mc6845_v_total_adj,mc6845_v_display,mc6845_v_sync_pos); bitmap.fill(m_palette->pen(m_backdrop_pen), cliprect); x_width = ((m_display_reg & 0x80) >> 7); count = 0x0000; for(yi=0;yi<8;yi++) { for(y=0;y<200;y+=8) { for(x=0;x<160;x++) { UINT16 color; color = (m_gvram[count] & 0xf0) >> 4; /* todo: clean this up! */ //if(x_width) { bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+0+CRTC_MIN_X) = m_palette->pen(color); bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+1+CRTC_MIN_X) = m_palette->pen(color); } //else //{ // bitmap.pix16(y+yi+CRTC_MIN_Y, x*2+0+CRTC_MIN_X) = m_palette->pen(color); //} color = (m_gvram[count] & 0x0f) >> 0; //if(x_width) { bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+2+CRTC_MIN_X) = m_palette->pen(color); bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+3+CRTC_MIN_X) = m_palette->pen(color); } //else //{ // bitmap.pix16(y+yi+CRTC_MIN_Y, x*2+1+CRTC_MIN_X) = m_palette->pen(color); //} count++; } } count+= 0x60; } count = 0x0000; for(y=0;y<25;y++) { for(x=0;x<80/(x_width+1);x++) { /* -x-- ---- blink --xx x--- bg color (00 transparent, 01 white, 10 black, 11 complementary to fg color ---- -xxx fg color */ int tile = m_vram[count]; int color = m_attr[count] & 7; int bk_color = (m_attr[count] & 0x18) >> 3; int blink = m_attr[count] & 0x40; int xi; int bk_pen; //int bk_struct[4] = { -1, 0x10, 0x11, (color & 7) ^ 8 }; bk_pen = -1; switch(bk_color & 3) { case 0: bk_pen = -1; break; //transparent case 1: bk_pen = 0x17; break; //white case 2: bk_pen = 0x10; break; //black case 3: bk_pen = (color ^ 0xf); break; //complementary } if(blink && machine().first_screen()->frame_number() & 0x10) //blinking, used by Dragon's Alphabet color = bk_pen; for(yi=0;yi<8;yi++) { for(xi=0;xi<8;xi++) { int pen; pen = ((m_pcg[tile*8+yi]>>(7-xi)) & 1) ? (color+m_pal_mode) : bk_pen; if (pen != -1) { if(x_width) { bitmap.pix16(y*8+CRTC_MIN_Y+yi, (x*8+xi)*2+0+CRTC_MIN_X) = m_palette->pen(pen); bitmap.pix16(y*8+CRTC_MIN_Y+yi, (x*8+xi)*2+1+CRTC_MIN_X) = m_palette->pen(pen); } else bitmap.pix16(y*8+CRTC_MIN_Y+yi, x*8+CRTC_MIN_X+xi) = m_palette->pen(pen); } } } // draw cursor if(mc6845_cursor_addr == 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<(8-(mc6845_cursor_y_start & 7));yc++) { for(xc=0;xc<8;xc++) { if(x_width) { bitmap.pix16(y*8+CRTC_MIN_Y-yc+7, (x*8+xc)*2+0+CRTC_MIN_X) = m_palette->pen(0x7); bitmap.pix16(y*8+CRTC_MIN_Y-yc+7, (x*8+xc)*2+1+CRTC_MIN_X) = m_palette->pen(0x7); } else bitmap.pix16(y*8+CRTC_MIN_Y-yc+7, x*8+CRTC_MIN_X+xc) = m_palette->pen(0x7); } } } } (m_display_reg & 0x80) ? count+=2 : count++; } } return 0; } WRITE8_MEMBER(smc777_state::mc6845_w) { if(offset == 0) { m_crtc_addr = data; m_crtc->address_w(space, 0,data); } else { m_crtc_vreg[m_crtc_addr] = data; m_crtc->register_w(space, 0,data); } } READ8_MEMBER(smc777_state::vram_r) { UINT16 vram_index; vram_index = ((offset & 0x0007) << 8); vram_index |= ((offset & 0xff00) >> 8); return m_vram[vram_index]; } READ8_MEMBER(smc777_state::attr_r) { UINT16 vram_index; vram_index = ((offset & 0x0007) << 8); vram_index |= ((offset & 0xff00) >> 8); return m_attr[vram_index]; } READ8_MEMBER(smc777_state::pcg_r) { UINT16 vram_index; vram_index = ((offset & 0x0007) << 8); vram_index |= ((offset & 0xff00) >> 8); return m_pcg[vram_index]; } WRITE8_MEMBER(smc777_state::vram_w) { UINT16 vram_index; vram_index = ((offset & 0x0007) << 8); vram_index |= ((offset & 0xff00) >> 8); m_vram[vram_index] = data; } WRITE8_MEMBER(smc777_state::attr_w) { UINT16 vram_index; vram_index = ((offset & 0x0007) << 8); vram_index |= ((offset & 0xff00) >> 8); m_attr[vram_index] = data; } WRITE8_MEMBER(smc777_state::pcg_w) { UINT16 vram_index; vram_index = ((offset & 0x0007) << 8); vram_index |= ((offset & 0xff00) >> 8); m_pcg[vram_index] = data; m_gfxdecode->gfx(0)->mark_dirty(vram_index >> 3); } READ8_MEMBER(smc777_state::fbuf_r) { UINT16 vram_index; vram_index = ((offset & 0x007f) << 8); vram_index |= ((offset & 0xff00) >> 8); return m_gvram[vram_index]; } WRITE8_MEMBER(smc777_state::fbuf_w) { UINT16 vram_index; vram_index = ((offset & 0x00ff) << 8); vram_index |= ((offset & 0xff00) >> 8); m_gvram[vram_index] = data; } READ8_MEMBER( smc777_state::fdc_r ) { return m_fdc->read(space, offset) ^ 0xff; } WRITE8_MEMBER( smc777_state::fdc_w ) { m_fdc->write(space, offset, data ^ 0xff); } READ8_MEMBER( smc777_state::fdc_request_r ) { UINT8 data = 0; data |= !m_fdc_drq_flag << 6; data |= m_fdc_irq_flag << 7; return data; } WRITE8_MEMBER( smc777_state::floppy_select_w ) { floppy_image_device *floppy = nullptr; // ---- xxxx select floppy drive (yes, 15 of them, A to P) switch (data & 0x01) { case 0: floppy = m_floppy0->get_device(); break; case 1: floppy = m_floppy1->get_device(); break; } m_fdc->set_floppy(floppy); // no idea where the motor on signal is if (floppy) floppy->mon_w(0); if(data & 0xf0) printf("floppy access %02x\n", data); } WRITE_LINE_MEMBER( smc777_state::fdc_intrq_w ) { m_fdc_irq_flag = state; } WRITE_LINE_MEMBER( smc777_state::fdc_drq_w ) { m_fdc_drq_flag = state; } READ8_MEMBER(smc777_state::key_r) { /* -x-- ---- shift key ---- -x-- MCU data ready ---- ---x handshake bit? */ switch(m_keyb_cmd) { case 0x00: //poll keyboard input { if(offset == 0) m_keyb_press_flag = 0; return (offset == 0) ? m_keyb_press : ((m_shift_press_flag << 6) | (m_keyb_press_flag << 2) | (m_keyb_press_flag)); } default: { //if(offset == 1) // printf("Unknown keyboard command %02x read-back\n",m_keyb_cmd); return (offset == 0) ? 0x00 : (machine().rand() & 0x5); } } // never executed //return 0x00; } /* TODO: the packet commands strikes me as something I've already seen before, don't remember where however ... */ WRITE8_MEMBER(smc777_state::key_w) { if(offset == 1) //keyboard command m_keyb_cmd = data; else { // keyboard command param } } WRITE8_MEMBER(smc777_state::border_col_w) { if(data & 0xf0) printf("Special border color enabled %02x\n",data); m_backdrop_pen = data & 0xf; } READ8_MEMBER(smc777_state::system_input_r) { printf("System FF R %02x\n",m_system_data & 0x0f); switch(m_system_data & 0x0f) { case 0x00: return ((m_raminh & 1) << 4); //unknown bit, Dragon's Alphabet and Bird Crush relies on this for correct colors } return m_system_data; } WRITE8_MEMBER(smc777_state::system_output_w) { /* ---x 0000 ram inibit signal ---x 1001 beep all the rest is unknown at current time */ m_system_data = data; switch(m_system_data & 0x0f) { case 0x00: m_raminh_pending_change = ((data & 0x10) >> 4) ^ 1; m_raminh_prefetch = (UINT8)(space.device().state().state_int(Z80_R)) & 0x7f; break; case 0x02: printf("Interlace %s\n",data & 0x10 ? "on" : "off"); break; case 0x05: m_beeper->set_state(data & 0x10); break; default: printf("System FF W %02x\n",data); break; } } WRITE8_MEMBER(smc777_state::color_mode_w) { switch(data & 0x0f) { case 0x06: m_pal_mode = (data & 0x10) ^ 0x10; break; default: printf("Color FF %02x\n",data); break; } } WRITE8_MEMBER(smc777_state::ramdac_w) { UINT8 pal_index; pal_index = (offset & 0xf00) >> 8; if(data & 0x0f) printf("RAMdac used with data bits 0-3 set (%02x)\n",data); switch((offset & 0x3000) >> 12) { case 0: m_pal.r = (data & 0xf0) >> 4; m_palette->set_pen_color(pal_index, pal4bit(m_pal.r), pal4bit(m_pal.g), pal4bit(m_pal.b)); break; case 1: m_pal.g = (data & 0xf0) >> 4; m_palette->set_pen_color(pal_index, pal4bit(m_pal.r), pal4bit(m_pal.g), pal4bit(m_pal.b)); break; case 2: m_pal.b = (data & 0xf0) >> 4; m_palette->set_pen_color(pal_index, pal4bit(m_pal.r), pal4bit(m_pal.g), pal4bit(m_pal.b)); break; case 3: printf("RAMdac used with gradient index = 3! pal_index = %02x data = %02x\n",pal_index,data); break; } } READ8_MEMBER(smc777_state::display_reg_r) { return m_display_reg; } /* x */ WRITE8_MEMBER(smc777_state::display_reg_w) { /* x--- ---- width 80 / 40 switch (0 = 640 x 200 1 = 320 x 200) ---- -x-- mode select? */ m_display_reg = data; } READ8_MEMBER(smc777_state::smc777_mem_r) { UINT8 z80_r; if(m_raminh_prefetch != 0xff) //do the bankswitch AFTER that the prefetch instruction is executed (FIXME: this is an hackish implementation) { z80_r = (UINT8)space.device().state().state_int(Z80_R); if(z80_r == ((m_raminh_prefetch+2) & 0x7f)) { m_raminh = m_raminh_pending_change; m_raminh_prefetch = 0xff; } } if(m_raminh == 1 && ((offset & 0xc000) == 0)) return m_ipl_rom[offset]; return m_work_ram[offset]; } WRITE8_MEMBER(smc777_state::smc777_mem_w) { m_work_ram[offset] = data; } READ8_MEMBER(smc777_state::irq_mask_r) { return m_irq_mask; } WRITE8_MEMBER(smc777_state::irq_mask_w) { if(data & 0xfe) printf("Irq mask = %02x\n",data & 0xfe); m_irq_mask = data & 1; } static ADDRESS_MAP_START( smc777_mem, AS_PROGRAM, 8, smc777_state ) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0xffff) AM_READWRITE(smc777_mem_r, smc777_mem_w) ADDRESS_MAP_END static ADDRESS_MAP_START( smc777_io, AS_IO, 8, smc777_state ) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x00, 0x07) AM_SELECT(0xff00) AM_READWRITE(vram_r, vram_w) AM_RANGE(0x08, 0x0f) AM_SELECT(0xff00) AM_READWRITE(attr_r, attr_w) AM_RANGE(0x10, 0x17) AM_SELECT(0xff00) AM_READWRITE(pcg_r, pcg_w) AM_RANGE(0x18, 0x19) AM_MIRROR(0xff00) AM_WRITE(mc6845_w) AM_RANGE(0x1a, 0x1b) AM_MIRROR(0xff00) AM_READWRITE(key_r, key_w) AM_RANGE(0x1c, 0x1c) AM_MIRROR(0xff00) AM_READWRITE(system_input_r, system_output_w) // AM_RANGE(0x1d, 0x1d) system and control read, printer strobe write // AM_RANGE(0x1e, 0x1f) rs232 irq control AM_RANGE(0x20, 0x20) AM_MIRROR(0xff00) AM_READWRITE(display_reg_r, display_reg_w) AM_RANGE(0x21, 0x21) AM_MIRROR(0xff00) AM_READWRITE(irq_mask_r, irq_mask_w) // AM_RANGE(0x22, 0x22) printer output data AM_RANGE(0x23, 0x23) AM_MIRROR(0xff00) AM_WRITE(border_col_w) // AM_RANGE(0x24, 0x24) rtc write address // AM_RANGE(0x25, 0x25) rtc read // AM_RANGE(0x26, 0x26) rs232 #1 // AM_RANGE(0x28, 0x2c) fdc #2 // AM_RANGE(0x2d, 0x2f) rs232 #2 AM_RANGE(0x30, 0x33) AM_MIRROR(0xff00) AM_READWRITE(fdc_r, fdc_w) AM_RANGE(0x34, 0x34) AM_MIRROR(0xff00) AM_READWRITE(fdc_request_r, floppy_select_w) // AM_RANGE(0x35, 0x37) rs232 #3 // AM_RANGE(0x38, 0x3b) cache disk unit // AM_RANGE(0x3c, 0x3d) rgb superimposer // AM_RANGE(0x40, 0x47) ieee-488 // AM_RANGE(0x48, 0x4f) hdd (winchester) AM_RANGE(0x51, 0x51) AM_MIRROR(0xff00) AM_READ_PORT("JOY_1P") AM_WRITE(color_mode_w) AM_RANGE(0x52, 0x52) AM_SELECT(0xff00) AM_WRITE(ramdac_w) AM_RANGE(0x53, 0x53) AM_MIRROR(0xff00) AM_DEVWRITE("sn1", sn76489a_device, write) // AM_RANGE(0x54, 0x59) vrt controller // AM_RANGE(0x5a, 0x5b) ram banking // AM_RANGE(0x70, 0x70) auto-start rom // AM_RANGE(0x74, 0x74) ieee-488 rom // AM_RANGE(0x75, 0x75) vrt controller rom // AM_RANGE(0x7e, 0x7f) kanji rom AM_RANGE(0x80, 0xff) AM_SELECT(0xff00) AM_READWRITE(fbuf_r, fbuf_w) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( smc777 ) PORT_START("key0") //0x00-0x07 PORT_BIT (0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) PORT_BIT (0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) PORT_BIT (0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) PORT_BIT (0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) PORT_BIT (0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) PORT_BIT (0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) PORT_BIT (0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) PORT_BIT (0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) PORT_START("key1") //0x08-0x0f PORT_BIT (0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) PORT_BIT (0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) PORT_BIT (0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/ PAD") PORT_CODE(KEYCODE_SLASH_PAD) PORT_BIT (0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("* PAD") PORT_CODE(KEYCODE_ASTERISK) PORT_BIT (0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("- PAD") PORT_CODE(KEYCODE_MINUS_PAD) PORT_BIT (0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+ PAD") PORT_CODE(KEYCODE_PLUS_PAD) PORT_BIT (0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER PAD") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13) PORT_BIT (0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(". PAD") PORT_CODE(KEYCODE_DEL_PAD) PORT_START("key2") //0x10-0x17 PORT_BIT (0x01, IP_ACTIVE_HIGH,IPT_UNUSED) // PORT_NAME("@") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_BIT (0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT (0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT (0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT (0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT (0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT (0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT (0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_START("key3") //0x18-0x1f PORT_BIT (0x01, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT (0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_BIT (0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_BIT (0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_BIT (0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT (0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT (0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT (0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_START("key4") //0x20-0x27 PORT_BIT (0x01, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_BIT (0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT (0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT (0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT (0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT (0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_BIT (0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT (0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_START("key5") //0x28-0x2f PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-1") /* TODO: labels */ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-2") PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-1") PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-2") PORT_START("key6") //0x30-0x37 PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_START("key7") //0x38-0x3f PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-1") /* TODO: labels */ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-3") PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-1") PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-2") PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-3") PORT_START("key8") //0x40-0x47 PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(27) PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("ESC") PORT_CHAR(27) PORT_BIT(0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("INS") PORT_CODE(KEYCODE_INSERT) PORT_BIT(0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL) /* TODO: control inputs */ PORT_START("key9") //0x40-0x47 /* TODO: cursor inputs */ PORT_BIT(0x01, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR UP") PORT_CODE(KEYCODE_UP) PORT_BIT(0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR DOWN") PORT_CODE(KEYCODE_DOWN) PORT_BIT(0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR LEFT") PORT_CODE(KEYCODE_LEFT) PORT_BIT(0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR RIGHT") PORT_CODE(KEYCODE_RIGHT) PORT_BIT(0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("HOME") PORT_CODE(KEYCODE_HOME) PORT_BIT(0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("END") PORT_CODE(KEYCODE_END) PORT_BIT(0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PGUP") PORT_CODE(KEYCODE_PGUP) PORT_BIT(0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PGDOWN") PORT_CODE(KEYCODE_PGDN) PORT_START("keya") //0x48-0x4f PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_START("key_mod") PORT_BIT (0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT (0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("KANA SHIFT") PORT_CODE(KEYCODE_LALT) #if 0 PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') 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(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[') 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("_") #endif PORT_START("JOY_1P") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_HIGH,IPT_UNKNOWN ) //status? INPUT_PORTS_END /* Keyboard data: kana lock |= 0x80 numpad 0 to 9 = 0x30 - 0x39 / pad = 0x2f * pad = 0x2a - pad = 0x2d + pad = 0x2b ENTER pad = 0x0d . pad = 0x2e enter = 0x0d space = 0x20 backspace = 0x08 CTRL (TAB?) = 0x09 cursor up = 0x17 cursor down = 0x1c cursor left = 0x16 cursor right = 0x19 0 to 9 -> 0x30 to 0x39 S + 0 = 0x29 S + 1 = 0x21 S + 2 = 0x40 S + 3 = 0x23 S + 4 = 0x24 S + 5 = 0x25 S + 6 = 0x5e S + 7 = 0x26 S + 8 = 0x2a S + 9 = 0x28 F1 = 0x01 / 0x15 F2 = 0x02 / 0x18 F3 = 0x04 / 0x12 F4 = 0x06 / 0x05 F5 = 0x0b / 0x03 ESC = 0x1b INS = 0x0f DEL = 0x11 PG UP = 0x12 PG DOWN = 0x03 HOME = 0x14 END = 0x0e ' = 0x2d / 0x5f "P" row 1 ] = 0x5d / 0x7d "P" row 2 ' / ~ = 0x60 / 0x7e "L" row 1 ; / : = 0x3b / 0x3a "L" row 2 = (unused) "L" row 3 Yen / | = 0x5c / 0x7c "M" row 1 , / < = 0x2c / 0x3c "M" row 2 . / > = 0x2e / 0x3e "M" row 3 / / ? = 0x2f / 0x3f */ static const UINT8 smc777_keytable[2][0xa0] = { /* normal*/ { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* numpad */ 0x38, 0x39, 0x2f, 0x2a, 0x2d, 0x2b, 0x0d, 0x2e, 0xff, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* A - G */ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* H - O */ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* P - W */ 0x78, 0x79, 0x7a, 0x2d, 0x5d, 0x60, 0xff, 0xff, /* X - Z */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0 - 7*/ 0x38, 0x39, 0x3b, 0x5c, 0x2c, 0x2e, 0x2f, 0xff, /* 8 - 9 */ 0x0d, 0x20, 0x08, 0x09, 0x1b, 0x0f, 0x11, 0xff, 0x17, 0x1c, 0x16, 0x19, 0x14, 0x0e, 0x12, 0x03, 0x01, 0x02, 0x04, 0x06, 0x0b, 0xff, 0xff, 0xff, }, /* shift */ { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* numpad */ 0x38, 0x39, 0x2f, 0x2a, 0x2d, 0x2b, 0x0d, 0x2e, 0xff, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* H - O */ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* P - W */ 0x58, 0x59, 0x5a, 0x5f, 0x7d, 0x7e, 0xff, 0xff, /* X - Z */ 0x29, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5e, 0x26, 0x2a, 0x28, 0x3a, 0x7c, 0x3c, 0x3e, 0x3f, 0xff, 0x0d, 0x20, 0x08, 0x09, 0x1b, 0x0f, 0x11, 0xff, 0x17, 0x1c, 0x16, 0x19, 0x14, 0x0e, 0x12, 0x03, 0x15, 0x18, 0x12, 0x05, 0x03, 0xff, 0xff, 0xff, /* F1 - F5 */ } }; TIMER_DEVICE_CALLBACK_MEMBER(smc777_state::keyboard_callback) { static const char *const portnames[11] = { "key0","key1","key2","key3","key4","key5","key6","key7", "key8", "key9", "keya" }; int i,port_i,scancode; UINT8 shift_mod = ioport("key_mod")->read() & 1; UINT8 kana_mod = ioport("key_mod")->read() & 0x10; scancode = 0; for(port_i=0;port_i<11;port_i++) { for(i=0;i<8;i++) { if((ioport(portnames[port_i])->read()>>i) & 1) { m_keyb_press = smc777_keytable[shift_mod & 1][scancode]; if(kana_mod) { m_keyb_press|=0x80; } m_keyb_press_flag = 1; m_shift_press_flag = shift_mod & 1; return; } scancode++; } } } static const gfx_layout smc777_charlayout = { 8, 8, 0x800 / 8, 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 }; void smc777_state::machine_start() { m_ipl_rom = memregion("ipl")->base(); m_work_ram = make_unique_clear(0x10000); m_vram = make_unique_clear(0x800); m_attr = make_unique_clear(0x800); m_gvram = make_unique_clear(0x8000); m_pcg = make_unique_clear(0x800); save_pointer(NAME(m_work_ram.get()), 0x10000); save_pointer(NAME(m_vram.get()), 0x800); save_pointer(NAME(m_attr.get()), 0x800); save_pointer(NAME(m_gvram.get()), 0x8000); save_pointer(NAME(m_pcg.get()), 0x800); m_gfxdecode->set_gfx(0, std::make_unique(m_palette, smc777_charlayout, m_pcg.get(), 0, 8, 0)); } void smc777_state::machine_reset() { m_raminh = 1; m_raminh_pending_change = 1; m_raminh_prefetch = 0xff; m_pal_mode = 0x10; m_beeper->set_state(0); } /* set-up SMC-70 mode colors */ PALETTE_INIT_MEMBER(smc777_state, smc777) { int i; for(i=0x10;i<0x18;i++) { UINT8 r,g,b; r = (i & 4) >> 2; g = (i & 2) >> 1; b = (i & 1) >> 0; palette.set_pen_color(i, pal1bit(r),pal1bit(g),pal1bit(b)); palette.set_pen_color(i+8, pal1bit(0),pal1bit(0),pal1bit(0)); } } INTERRUPT_GEN_MEMBER(smc777_state::vblank_irq) { if(m_irq_mask) device.execute().set_input_line(0,HOLD_LINE); } static SLOT_INTERFACE_START( smc777_floppies ) SLOT_INTERFACE("ssdd", FLOPPY_35_SSDD) SLOT_INTERFACE_END static MACHINE_CONFIG_START( smc777, smc777_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, MASTER_CLOCK) MCFG_CPU_PROGRAM_MAP(smc777_mem) MCFG_CPU_IO_MAP(smc777_io) MCFG_CPU_VBLANK_INT_DRIVER("screen", smc777_state, vblank_irq) /* 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(0x400, 400) MCFG_SCREEN_VISIBLE_AREA(0, 660-1, 0, 220-1) //normal 640 x 200 + 20 pixels for border color MCFG_SCREEN_UPDATE_DRIVER(smc777_state, screen_update_smc777) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 0x20) // 16 + 8 colors (SMC-777 + SMC-70) + 8 empty entries (SMC-70) MCFG_PALETTE_INIT_OWNER(smc777_state, smc777) MCFG_GFXDECODE_ADD("gfxdecode", "palette", empty) MCFG_MC6845_ADD("crtc", H46505, "screen", MASTER_CLOCK/2) /* unknown clock, hand tuned to get ~60 fps */ MCFG_MC6845_SHOW_BORDER_AREA(true) MCFG_MC6845_CHAR_WIDTH(8) // floppy controller MCFG_MB8876_ADD("fdc", XTAL_1MHz) MCFG_WD_FDC_INTRQ_CALLBACK(WRITELINE(smc777_state, fdc_intrq_w)) MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(smc777_state, fdc_drq_w)) // does it really support 16 of them? MCFG_FLOPPY_DRIVE_ADD("fdc:0", smc777_floppies, "ssdd", floppy_image_device::default_floppy_formats) MCFG_FLOPPY_DRIVE_ADD("fdc:1", smc777_floppies, "ssdd", floppy_image_device::default_floppy_formats) MCFG_SOFTWARE_LIST_ADD("flop_list", "smc777") /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_ADD("sn1", SN76489A, MASTER_CLOCK) // unknown clock / divider MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) MCFG_SOUND_ADD("beeper", BEEP, 300) // TODO: correct frequency MCFG_SOUND_ROUTE(ALL_OUTPUTS,"mono",0.50) MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard_timer", smc777_state, keyboard_callback, attotime::from_hz(240/32)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( smc777 ) /* shadow ROM */ ROM_REGION( 0x10000, "ipl", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS(0, "1st", "1st rev.") ROMX_LOAD( "smcrom.dat", 0x0000, 0x4000, CRC(b2520d31) SHA1(3c24b742c38bbaac85c0409652ba36e20f4687a1), ROM_BIOS(1)) ROM_SYSTEM_BIOS(1, "2nd", "2nd rev.") ROMX_LOAD( "smcrom.v2", 0x0000, 0x4000, CRC(c1494b8f) SHA1(a7396f5c292f11639ffbf0b909e8473c5aa63518), ROM_BIOS(2)) ROM_REGION( 0x800, "mcu", ROMREGION_ERASEFF ) ROM_LOAD( "i80xx", 0x000, 0x800, NO_DUMP ) // keyboard mcu, needs decapping ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1983, smc777, 0, 0, smc777, smc777, driver_device, 0, "Sony", "SMC-777", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND)