// license:MAME // copyright-holders:Angelo Salese, Robbbert /************************************************************************************************************ Gundam RX-78 (c) 1983 Bandai driver by Angelo Salese & Robbbert. TODO: - implement printer Notes: - BS-BASIC v1.0 have a graphic bug with the RX-78 logo, it doesn't set the read bank so all of the color info minus plane 1 is lost when the screen scrolls vertically. Almost certainly a btanb. - To stop a cmt load, press STOP + SHIFT keys ============================================================================================================== 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/cartslot.h" #include "imagedev/cassette.h" #include "sound/wave.h" #include "machine/ram.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_ram(*this, RAM_TAG), m_palette(*this, "palette") { } DECLARE_READ8_MEMBER( key_r ); DECLARE_READ8_MEMBER( rx78_f0_r ); DECLARE_READ8_MEMBER( rx78_vram_r ); DECLARE_WRITE8_MEMBER( rx78_f0_w ); DECLARE_WRITE8_MEMBER( rx78_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 ); UINT8 m_vram_read_bank; UINT8 m_vram_write_bank; UINT8 m_pal_reg[7]; UINT8 m_pri_mask; UINT8 m_key_mux; virtual void machine_reset(); virtual void video_start(); UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); DECLARE_DRIVER_INIT(rx78); required_device m_maincpu; required_device m_cass; required_device m_ram; required_device m_palette; DECLARE_DEVICE_IMAGE_LOAD_MEMBER( rx78_cart ); }; #define MASTER_CLOCK XTAL_28_63636MHz WRITE8_MEMBER( rx78_state::rx78_f0_w ) { m_cass->output(BIT(data, 0) ? -1.0 : +1.0); } READ8_MEMBER( rx78_state::rx78_f0_r ) { return (m_cass->input() > 0.03); } void rx78_state::video_start() { } UINT32 rx78_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { UINT8 *vram = memregion("vram")->base(); int x,y,count; bitmap.fill(16, cliprect); count = 0x2c0; //first 0x2bf bytes aren't used for bitmap drawing apparently for(y=0;y<184;y++) { for(x=0;x<192;x+=8) { int color,pen[3],i; for (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, x+i) = color; /* 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, x+i) = 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 { int res,i; res = 0; for(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::rx78_vram_r ) { UINT8 *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::rx78_vram_w ) { UINT8 *vram = memregion("vram")->base(); if(m_vram_write_bank & 0x01) { vram[offset + 0 * 0x2000] = data; } if(m_vram_write_bank & 0x02) { vram[offset + 1 * 0x2000] = data; } if(m_vram_write_bank & 0x04) { vram[offset + 2 * 0x2000] = data; } if(m_vram_write_bank & 0x08) { vram[offset + 3 * 0x2000] = data; } if(m_vram_write_bank & 0x10) { vram[offset + 4 * 0x2000] = data; } if(m_vram_write_bank & 0x20) { vram[offset + 5 * 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 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; } static ADDRESS_MAP_START(rx78_mem, AS_PROGRAM, 8, rx78_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x1fff) AM_ROM AM_RANGE(0x2000, 0x5fff) AM_ROM AM_REGION("cart_img", 0x0000) AM_RANGE(0x6000, 0xafff) AM_RAM //ext RAM AM_RANGE(0xb000, 0xebff) AM_RAM AM_RANGE(0xec00, 0xffff) AM_READWRITE(rx78_vram_r, rx78_vram_w) ADDRESS_MAP_END static ADDRESS_MAP_START(rx78_io, AS_IO, 8, rx78_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) // AM_RANGE(0xe2, 0xe2) AM_READNOP AM_WRITENOP //printer // AM_RANGE(0xe3, 0xe3) AM_WRITENOP //printer AM_RANGE(0xf0, 0xf0) AM_READWRITE(rx78_f0_r,rx78_f0_w) //cmt AM_RANGE(0xf1, 0xf1) AM_WRITE(vram_read_bank_w) AM_RANGE(0xf2, 0xf2) AM_WRITE(vram_write_bank_w) AM_RANGE(0xf4, 0xf4) AM_READWRITE(key_r,key_w) //keyboard AM_RANGE(0xf5, 0xfb) AM_WRITE(vdp_reg_w) //vdp AM_RANGE(0xfc, 0xfc) AM_WRITE(vdp_bg_reg_w) //vdp AM_RANGE(0xfe, 0xfe) AM_WRITE(vdp_pri_mask_w) AM_RANGE(0xff, 0xff) AM_DEVWRITE("sn1", sn76489a_device, write) //psg ADDRESS_MAP_END /* 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("HOME / CLR") 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("SHIFT 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() { } DEVICE_IMAGE_LOAD_MEMBER( rx78_state, rx78_cart ) { UINT8 *cart = memregion("cart_img")->base(); UINT32 size; if (image.software_entry() == NULL) size = image.length(); else size = image.get_software_region_length("rom"); if (size != 0x2000 && size != 0x4000) { image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unsupported cartridge size"); return IMAGE_INIT_FAIL; } if (image.software_entry() == NULL) { if (image.fread( cart, size) != size) { image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unable to fully read from file"); return IMAGE_INIT_FAIL; } } else memcpy(cart, image.get_software_region("rom"), size); return IMAGE_INIT_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( rx78 ) GFXDECODE_ENTRY( "maincpu", 0x1a27, rx78_charlayout, 0, 8 ) GFXDECODE_END static MACHINE_CONFIG_START( rx78, rx78_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, MASTER_CLOCK/7) // unknown divider MCFG_CPU_PROGRAM_MAP(rx78_mem) MCFG_CPU_IO_MAP(rx78_io) MCFG_CPU_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_UPDATE_DRIVER(rx78_state, screen_update) MCFG_SCREEN_SIZE(192, 184) MCFG_SCREEN_VISIBLE_AREA(0, 192-1, 0, 184-1) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 16+1) //+1 for the background color MCFG_GFXDECODE_ADD("gfxdecode", "palette", rx78) MCFG_CARTSLOT_ADD("cart") MCFG_CARTSLOT_EXTENSION_LIST("rom") MCFG_CARTSLOT_NOT_MANDATORY MCFG_CARTSLOT_LOAD(rx78_state,rx78_cart) MCFG_CARTSLOT_INTERFACE("rx78_cart") MCFG_RAM_ADD(RAM_TAG) MCFG_RAM_DEFAULT_SIZE("32k") MCFG_RAM_EXTRA_OPTIONS("16k") MCFG_CASSETTE_ADD( "cassette" ) MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette") MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) MCFG_SOUND_ADD("sn1", SN76489A, XTAL_28_63636MHz/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( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "ipl.rom", 0x0000, 0x2000, CRC(a194ea53) SHA1(ba39e73e6eb7cbb8906fff1f81a98964cd62af0d)) ROM_REGION( 0x4000, "cart_img", ROMREGION_ERASEFF ) ROM_CART_LOAD("cart", 0x0000, 0x4000, ROM_OPTIONAL | ROM_NOMIRROR) ROM_REGION( 6 * 0x2000, "vram", ROMREGION_ERASE00 ) ROM_END DRIVER_INIT_MEMBER(rx78_state,rx78) { UINT32 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, rx78, "Bandai", "Gundam RX-78", 0)