// license:BSD-3-Clause // copyright-holders:Angelo Salese, Robbbert /************************************************************************************************************ Gundam RX-78 (c) 1983 Bandai Driver by Angelo Salese & Robbbert. TODO: - implement printer; - Challenge Golf: has gfx and input bugs (starts with home/end keys!?); - Colours are incorrect Notes: - BS-BASIC v1.0 notes: -- COLOR x doesn't do anything. It sets a memory location with x, but does nothing with it. -- COLOR x,y where y sets the background colour. This part works. -- When BASIC is first started, it sets the colours but doesn't save the information. So when COLOR x is entered, although x has no effect, it also sets the background colour, which not having been set, sets the background black. -- At the first scroll, the display memory is disrupted in the logo area, probably another btanb. After that, scrolling works correctly. -- Need a real machine to confirm these problems, but if true, one can only wonder how such obvious issues made it out the door. - To stop a cmt load, press STOP + SHIFT keys Known programs: - BS_BASIC V1.0 - Challenge Golf - Excite Tennis - Excite Baseball - Perfect Mah-Jongg - Mobile Suit (says Mobil Suit on the start screen) - The ProWrestling - 3-dimension graphics ============================================================================================================== Summary of Monitor commands. - The monitor is entered at bootup. The prompt is the * character. This is followed by a command letter (upper case). Some commands require hex parameters. You must enter all 4 characters of these. No spaces allowed except where shown. - While in BASIC, you may enter the monitor by using the MON command. After you have finished, you can return to BASIC by entering the command *J2005. - Tape commands: *L Load a tape *V Verify a tape *S Save a block of memory to tape. You are asked for a filename (blank is allowed), the start address, the end address, and the Jump address (where it should begin execution) - Memory commands: *Dnnnn nnnn Displays a hex dump in the address range entered *Mnnnn Allows you to examine and modify memory. Enter to skip to next, period (.) to quit. *Jnnnn Transfer execution (Jump) to a program in memory at the specified address - Other: *R This is a block transfer load from a mystery parallel device, using ports E0 and E1, using handshaking similar to a centronics printer. The incoming file is loaded into memory and it appears that the operator is not provided any information of what happened. *************************************************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "sound/sn76496.h" #include "imagedev/cassette.h" #include "sound/wave.h" #include "machine/ram.h" #include "bus/generic/slot.h" #include "bus/generic/carts.h" #include "screen.h" #include "softlist.h" #include "speaker.h" class rx78_state : public driver_device { public: rx78_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_cass(*this, "cassette") , m_cart(*this, "cartslot") , m_ram(*this, RAM_TAG) , m_palette(*this, "palette") { } void init_rx78(); void rx78(machine_config &config); protected: DECLARE_READ8_MEMBER( key_r ); DECLARE_READ8_MEMBER( cass_r ); DECLARE_READ8_MEMBER( vram_r ); DECLARE_WRITE8_MEMBER( cass_w ); DECLARE_WRITE8_MEMBER( vram_w ); DECLARE_WRITE8_MEMBER( vram_read_bank_w ); DECLARE_WRITE8_MEMBER( vram_write_bank_w ); DECLARE_WRITE8_MEMBER( key_w ); DECLARE_WRITE8_MEMBER( vdp_reg_w ); DECLARE_WRITE8_MEMBER( vdp_bg_reg_w ); DECLARE_WRITE8_MEMBER( vdp_pri_mask_w ); DECLARE_DEVICE_IMAGE_LOAD_MEMBER( rx78_cart ); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); virtual void machine_reset() override; void rx78_io(address_map &map); void rx78_mem(address_map &map); private: uint8_t m_vram_read_bank; uint8_t m_vram_write_bank; uint8_t m_pal_reg[7]; uint8_t m_pri_mask; uint8_t m_key_mux; required_device m_maincpu; required_device m_cass; required_device m_cart; required_device m_ram; required_device m_palette; }; #define MASTER_CLOCK XTAL(28'636'363) WRITE8_MEMBER( rx78_state::cass_w ) { m_cass->output(BIT(data, 0) ? -1.0 : +1.0); } READ8_MEMBER( rx78_state::cass_r ) { return (m_cass->input() > 0.03); } uint32_t rx78_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { uint8_t *vram = memregion("vram")->base(); int color,pen[3]; const int borderx = 32, bordery = 20; bitmap.fill(16, cliprect); int count = 0x2c0; //first 0x2bf bytes aren't used for bitmap drawing apparently for(u8 y=0; y<184; y++) { for(u8 x=0; x<192; x+=8) { for (u8 i = 0; i < 8; i++) { /* bg color */ pen[0] = (m_pri_mask & 0x08) ? (vram[count + 0x6000] >> (i)) : 0x00; pen[1] = (m_pri_mask & 0x10) ? (vram[count + 0x8000] >> (i)) : 0x00; pen[2] = (m_pri_mask & 0x20) ? (vram[count + 0xa000] >> (i)) : 0x00; color = ((pen[0] & 1) << 0); color |= ((pen[1] & 1) << 1); color |= ((pen[2] & 1) << 2); if(color) bitmap.pix16(y+bordery, x+i+borderx) = color | 8; /* fg color */ pen[0] = (m_pri_mask & 0x01) ? (vram[count + 0x0000] >> (i)) : 0x00; pen[1] = (m_pri_mask & 0x02) ? (vram[count + 0x2000] >> (i)) : 0x00; pen[2] = (m_pri_mask & 0x04) ? (vram[count + 0x4000] >> (i)) : 0x00; color = ((pen[0] & 1) << 0); color |= ((pen[1] & 1) << 1); color |= ((pen[2] & 1) << 2); if(color) bitmap.pix16(y+bordery, x+i+borderx) = color; } count++; } } return 0; } READ8_MEMBER( rx78_state::key_r ) { static const char *const keynames[] = { "KEY0", "KEY1", "KEY2", "KEY3", "KEY4", "KEY5", "KEY6", "KEY7", "KEY8", "JOY1P_0","JOY1P_1","JOY1P_2", "JOY2P_0", "JOY2P_1", "JOY2P_2", "UNUSED" }; if(m_key_mux == 0x30) //status read { u8 res = 0; for(u8 i=0; i<15; i++) res |= ioport(keynames[i])->read(); return res; } if(m_key_mux >= 1 && m_key_mux <= 15) return ioport(keynames[m_key_mux - 1])->read(); return 0; } WRITE8_MEMBER( rx78_state::key_w ) { m_key_mux = data; } READ8_MEMBER( rx78_state::vram_r ) { uint8_t *vram = memregion("vram")->base(); if(m_vram_read_bank == 0 || m_vram_read_bank > 6) return 0xff; return vram[offset + ((m_vram_read_bank - 1) * 0x2000)]; } WRITE8_MEMBER( rx78_state::vram_w ) { uint8_t *vram = memregion("vram")->base(); for (u8 i = 0; i < 6; i++) if (BIT(m_vram_write_bank, i)) vram[offset + i * 0x2000] = data; } WRITE8_MEMBER( rx78_state::vram_read_bank_w ) { m_vram_read_bank = data; } WRITE8_MEMBER( rx78_state::vram_write_bank_w ) { m_vram_write_bank = data; } WRITE8_MEMBER( rx78_state::vdp_reg_w ) { uint8_t r,g,b,res,i; m_pal_reg[offset] = data; for(i=0;i<16;i++) { res = ((i & 1) ? m_pal_reg[0 + (i & 8 ? 3 : 0)] : 0) | ((i & 2) ? m_pal_reg[1 + (i & 8 ? 3 : 0)] : 0) | ((i & 4) ? m_pal_reg[2 + (i & 8 ? 3 : 0)] : 0); if(res & m_pal_reg[6]) //color mask, TODO: check this res &= m_pal_reg[6]; r = (res & 0x11) == 0x11 ? 0xff : ((res & 0x11) == 0x01 ? 0x7f : 0x00); g = (res & 0x22) == 0x22 ? 0xff : ((res & 0x22) == 0x02 ? 0x7f : 0x00); b = (res & 0x44) == 0x44 ? 0xff : ((res & 0x44) == 0x04 ? 0x7f : 0x00); m_palette->set_pen_color(i, rgb_t(r,g,b)); } } WRITE8_MEMBER( rx78_state::vdp_bg_reg_w ) { int r,g,b; r = (data & 0x11) == 0x11 ? 0xff : ((data & 0x11) == 0x01 ? 0x7f : 0x00); g = (data & 0x22) == 0x22 ? 0xff : ((data & 0x22) == 0x02 ? 0x7f : 0x00); b = (data & 0x44) == 0x44 ? 0xff : ((data & 0x44) == 0x04 ? 0x7f : 0x00); m_palette->set_pen_color(0x10, rgb_t(r,g,b)); } WRITE8_MEMBER( rx78_state::vdp_pri_mask_w ) { m_pri_mask = data; } void rx78_state::rx78_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x1fff).rom().region("roms", 0); //AM_RANGE(0x2000, 0x5fff) // mapped by the cartslot map(0x6000, 0xafff).ram(); //ext RAM map(0xb000, 0xebff).ram(); map(0xec00, 0xffff).rw(this, FUNC(rx78_state::vram_r), FUNC(rx78_state::vram_w)); } void rx78_state::rx78_io(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); // AM_RANGE(0xe2, 0xe2) AM_READNOP AM_WRITENOP //printer // AM_RANGE(0xe3, 0xe3) AM_WRITENOP //printer map(0xf0, 0xf0).rw(this, FUNC(rx78_state::cass_r), FUNC(rx78_state::cass_w)); //cmt map(0xf1, 0xf1).w(this, FUNC(rx78_state::vram_read_bank_w)); map(0xf2, 0xf2).w(this, FUNC(rx78_state::vram_write_bank_w)); map(0xf4, 0xf4).rw(this, FUNC(rx78_state::key_r), FUNC(rx78_state::key_w)); //keyboard map(0xf5, 0xfb).w(this, FUNC(rx78_state::vdp_reg_w)); //vdp map(0xfc, 0xfc).w(this, FUNC(rx78_state::vdp_bg_reg_w)); //vdp map(0xfe, 0xfe).w(this, FUNC(rx78_state::vdp_pri_mask_w)); map(0xff, 0xff).w("sn1", FUNC(sn76489a_device::write)); //psg } /* Input ports */ static INPUT_PORTS_START( rx78 ) PORT_START("KEY0") 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_CHAR('!') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') PORT_START("KEY1") PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(":") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_START("KEY2") PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('@') PORT_CHAR('`') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('a') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c') PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('e') PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f') PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g') PORT_START("KEY3") PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('h') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k') PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l') PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m') PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n') PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o') PORT_START("KEY4") PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR('q') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s') PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t') PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('u') PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v') PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w') PORT_START("KEY5") PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('y') PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z') PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("\\") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Up Down Arrow") PORT_CODE(KEYCODE_PGUP) PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Right Left Arrow") PORT_CODE(KEYCODE_PGDN) PORT_START("KEY6") PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT) PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CLR / HOME") PORT_CODE(KEYCODE_HOME) PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_UNUSED ) PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("INST / DEL") PORT_CODE(KEYCODE_BACKSPACE) PORT_START("KEY7") PORT_BIT(0x07,IP_ACTIVE_HIGH,IPT_UNUSED ) PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("STOP") PORT_CODE(KEYCODE_END) PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_UNUSED ) PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_UNUSED ) PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SFT LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_START("KEY8") PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) //kana shift? PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_UNUSED ) PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0xf8,IP_ACTIVE_HIGH,IPT_UNUSED ) PORT_START("JOY1P_0") PORT_BIT( 0x11, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x22, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Up Left") PORT_PLAYER(1) PORT_BIT( 0x44, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x88, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_START("JOY1P_1") PORT_BIT( 0x11, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Down Left") PORT_PLAYER(1) PORT_BIT( 0x22, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Up Right") PORT_PLAYER(1) PORT_BIT( 0x44, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x88, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("JOY1P_2") PORT_BIT( 0x11, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x22, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Down Right") PORT_PLAYER(1) PORT_BIT( 0x44, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x88, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_START("JOY2P_0") PORT_BIT( 0x11, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x22, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Up Left") PORT_PLAYER(2) PORT_BIT( 0x44, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x88, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_START("JOY2P_1") PORT_BIT( 0x11, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Down Left") PORT_PLAYER(2) PORT_BIT( 0x22, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Up Right") PORT_PLAYER(2) PORT_BIT( 0x44, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x88, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("JOY2P_2") PORT_BIT( 0x11, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x22, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Down Right") PORT_PLAYER(2) PORT_BIT( 0x44, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x88, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_START("UNUSED") PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED ) INPUT_PORTS_END void rx78_state::machine_reset() { address_space &prg = m_maincpu->space(AS_PROGRAM); if (m_cart->exists()) prg.install_read_handler(0x2000, 0x5fff, read8_delegate(FUNC(generic_slot_device::read_rom),(generic_slot_device*)m_cart)); } DEVICE_IMAGE_LOAD_MEMBER( rx78_state, rx78_cart ) { uint32_t size = m_cart->common_get_size("rom"); if (size != 0x2000 && size != 0x4000) { image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unsupported cartridge size"); return image_init_result::FAIL; } m_cart->rom_alloc(size, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE); m_cart->common_load_rom(m_cart->get_rom_base(), size, "rom"); return image_init_result::PASS; } /* F4 Character Displayer */ static const gfx_layout rx78_charlayout = { 8, 8, /* 8 x 8 characters */ 187, /* 187 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 7, 6, 5, 4, 3, 2, 1, 0 }, /* y offsets */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, 8*8 /* every char takes 8 bytes */ }; static GFXDECODE_START( gfx_rx78 ) GFXDECODE_ENTRY( "roms", 0x1a27, rx78_charlayout, 0, 8 ) GFXDECODE_END MACHINE_CONFIG_START(rx78_state::rx78) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu",Z80, MASTER_CLOCK/7) // unknown divider MCFG_DEVICE_PROGRAM_MAP(rx78_mem) MCFG_DEVICE_IO_MAP(rx78_io) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", rx78_state, irq0_line_hold) /* 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(192, 184) // MCFG_SCREEN_VISIBLE_AREA(0, 192-1, 0, 184-1) /* guess: generic NTSC video timing at 256x224, system runs at 192x184, suppose with some border area to compensate */ MCFG_SCREEN_RAW_PARAMS(MASTER_CLOCK/4, 442, 0, 256, 263, 0, 224) MCFG_SCREEN_UPDATE_DRIVER(rx78_state, screen_update) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 16+1) //+1 for the background color MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_rx78) MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "rx78_cart") MCFG_GENERIC_EXTENSIONS("bin,rom") MCFG_GENERIC_LOAD(rx78_state, rx78_cart) MCFG_RAM_ADD(RAM_TAG) MCFG_RAM_DEFAULT_SIZE("32k") MCFG_RAM_EXTRA_OPTIONS("16k") MCFG_CASSETTE_ADD( "cassette" ) SPEAKER(config, "mono").front_center(); WAVE(config, "wave", "cassette").add_route(ALL_OUTPUTS, "mono", 0.25); MCFG_DEVICE_ADD("sn1", SN76489A, XTAL(28'636'363)/8) // unknown divider MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) /* Software lists */ MCFG_SOFTWARE_LIST_ADD("cart_list","rx78") MACHINE_CONFIG_END /* ROM definition */ ROM_START( rx78 ) ROM_REGION( 0x2000, "roms", 0 ) ROM_LOAD( "ipl.rom", 0x0000, 0x2000, CRC(a194ea53) SHA1(ba39e73e6eb7cbb8906fff1f81a98964cd62af0d)) ROM_REGION( 6 * 0x2000, "vram", ROMREGION_ERASE00 ) ROM_END void rx78_state::init_rx78() { uint32_t ram_size = m_ram->size(); address_space &prg = m_maincpu->space(AS_PROGRAM); if (ram_size == 0x4000) prg.unmap_readwrite(0x6000, 0xafff); } /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 1983, rx78, 0, 0, rx78, rx78, rx78_state, init_rx78, "Bandai", "Gundam RX-78", MACHINE_NOT_WORKING )