diff options
Diffstat (limited to 'src/mame/misc/freeway.cpp')
-rw-r--r-- | src/mame/misc/freeway.cpp | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/src/mame/misc/freeway.cpp b/src/mame/misc/freeway.cpp new file mode 100644 index 00000000000..84f6a978cab --- /dev/null +++ b/src/mame/misc/freeway.cpp @@ -0,0 +1,284 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/********************************************************************* + + FreeWay (c) 1999 NVC Electronica Ltd. + + Skeleton driver. + +*********************************************************************/ + +#include "emu.h" + +#include "bus/rs232/rs232.h" +#include "cpu/i86/i86.h" +#include "machine/ins8250.h" +#include "machine/pit8253.h" +#include "machine/pic8259.h" +#include "machine/timekpr.h" +#include "video/mc6845.h" + +#include "emupal.h" +#include "screen.h" + + +namespace { + +class freeway_state : public driver_device +{ +public: + freeway_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag) + , m_maincpu(*this, "maincpu") + , m_pic(*this, "pic") + , m_charram(*this, "charram") + , m_colorram(*this, "colorram") + , m_gfx_rom(*this, "gfx") + , m_color_rom(*this, "color_rom") + , m_lamps(*this, "lamp%u", 1U) + { + } + + void freeway(machine_config &config); + + void nmi_w(int state); + +protected: + virtual void machine_start() override ATTR_COLD; + +private: + MC6845_UPDATE_ROW(update_row); + + void lamps_w(u8 data); + + void mem_map(address_map &map) ATTR_COLD; + void io_map(address_map &map) ATTR_COLD; + + required_device<cpu_device> m_maincpu; + required_device<pic8259_device> m_pic; + + required_shared_ptr<u8> m_charram; + required_shared_ptr<u8> m_colorram; + + required_region_ptr<u8> m_gfx_rom; + required_region_ptr<u8> m_color_rom; + + output_finder<3> m_lamps; + + void palette_init(palette_device &palette) const; +}; + +void freeway_state::machine_start() +{ + m_lamps.resolve(); +} + +// TODO: just the minimum to show errors on screen +MC6845_UPDATE_ROW(freeway_state::update_row) +{ + uint16_t x = 0; + + for (uint8_t cx = 0; cx < x_count; cx++) + { + int const attr = m_colorram[ma & 0xfff]; + int addr = ((m_charram[ma & 0xfff] | ((attr & 0x10) << 5)) << 3) | (ra & 0x07); + + uint8_t const *const data = m_gfx_rom; + + for (int i = 7; i >= 0; i--) + { + int col = 0; + col |= (BIT(data[0x0000 | addr], i) << 2); + col |= (BIT(data[0x8000 | addr], i) << 1); + col |= (BIT(data[0x10000 | addr], i) << 0); + + const u32 pen = (BIT(col, 2) ? 0xff : 0) | (BIT(col, 1) ? 0xff00 : 0) | (BIT(col, 0) ? 0xff0000 : 0); + bitmap.pix(y, x) = pen; + + x++; + } + ma++; + } +} + +void freeway_state::lamps_w(u8 data) +{ + for (int n = 0; n < 3; n++) + m_lamps[n] = BIT(data, n); +} + +void freeway_state::nmi_w(int state) +{ + m_maincpu->set_input_line(INPUT_LINE_NMI, state); +} + +void freeway_state::mem_map(address_map &map) +{ + map(0x00000, 0x07fff).ram(); + map(0x08000, 0x09fff).rw("timekpr", FUNC(timekeeper_device::read), FUNC(timekeeper_device::write)); + map(0xa0000, 0xa0fff).ram().share(m_charram); + map(0xa4000, 0xa4fff).ram().share(m_colorram); + map(0xf0000, 0xfffff).rom().region("program", 0); +} + +void freeway_state::io_map(address_map &map) +{ + map(0x0020, 0x0021).rw(m_pic, FUNC(pic8259_device::read), FUNC(pic8259_device::write)); + map(0x0030, 0x0033).w("pit", FUNC(pit8254_device::write)); + map(0x0040, 0x0047).rw("uart", FUNC(ns16450_device::ins8250_r), FUNC(ns16450_device::ins8250_w)); + map(0x00a3, 0x00a3).w(FUNC(freeway_state::lamps_w)); + map(0x00d0, 0x00d0).portr("CONFIG"); + map(0x00d1, 0x00d1).portr("INPUTS"); + map(0x03d0, 0x03d0).w("crtc", FUNC(mc6845_device::address_w)); + map(0x03d1, 0x03d1).w("crtc", FUNC(mc6845_device::register_w)); +} + +static INPUT_PORTS_START(freeway) + PORT_START("CONFIG") + PORT_DIPNAME(0x01, 0x00, "Screen Format") + PORT_DIPSETTING(0x00, "PAL") + PORT_DIPSETTING(0x01, "NTSC?") // 268 lines total, 58.3 Hz refresh + PORT_BIT(0x08, 0x08, IPT_UNKNOWN) + PORT_BIT(0xf6, 0xf6, IPT_UNKNOWN) // probably unused + + PORT_START("INPUTS") + PORT_DIPNAME( 0x01, 0x01, "IN0.1" ) + PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_GAMBLE_BOOK ) // brings up the 'auditoria' screen in freeway + PORT_DIPNAME( 0x04, 0x04, "IN0.3" ) + PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x08, "IN0.4" ) + PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x10, "IN0.5" ) // increases the 'num dias' value in freeway + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x20, "IN0.6" ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, "IN0.7" ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, "IN0.8" ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + PORT_START("RESET") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_MEMORY_RESET) PORT_WRITE_LINE_MEMBER(FUNC(freeway_state::nmi_w)) +INPUT_PORTS_END + +static GFXDECODE_START(gfx_freeway) + GFXDECODE_ENTRY("gfx", 0, gfx_8x8x3_planar, 0x0, 0x20) +GFXDECODE_END + +// TODO: diverges between freeway and freewaya +// makes more sense with latter, different? +void freeway_state::palette_init(palette_device &palette) const +{ + uint8_t const *const data = m_color_rom; + + u8 value = 0; + + for (int i = 0; i < palette.entries(); i++) + { + value = data[i + 0x7c00]; + int const r = (value == 0xff) ? 0 : 0x0e * BIT(value, 0) + 0x1f * BIT(value, 1) + 0x43 * BIT(value, 2) + 0x8f * BIT(value, 3); + + value = data[i + 0x7d00]; + int const g = (value == 0xff) ? 0 : 0x0e * BIT(value, 0) + 0x1f * BIT(value, 1) + 0x43 * BIT(value, 2) + 0x8f * BIT(value, 3); + + value = data[i + 0x7f00]; + int const b = (value == 0xff) ? 0 : 0x0e * BIT(value, 0) + 0x1f * BIT(value, 1) + 0x43 * BIT(value, 2) + 0x8f * BIT(value, 3); + + palette.set_pen_color(i, rgb_t(r, g, b)); + } +} + + +void freeway_state::freeway(machine_config &config) +{ + I8088(config, m_maincpu, 10_MHz_XTAL / 2); // divider unknown + m_maincpu->set_addrmap(AS_PROGRAM, &freeway_state::mem_map); + m_maincpu->set_addrmap(AS_IO, &freeway_state::io_map); + m_maincpu->set_irq_acknowledge_callback("pic", FUNC(pic8259_device::inta_cb)); + + PIC8259(config, m_pic); + m_pic->out_int_callback().set_inputline(m_maincpu, 0); + + pit8254_device &pit(PIT8254(config, "pit")); + pit.out_handler<0>().set(m_pic, FUNC(pic8259_device::ir0_w)); + + M48T58(config, "timekpr"); + + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); + screen.set_raw(10_MHz_XTAL / 2, 320, 0, 256, 312, 0, 256); + screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update)); + + PALETTE(config, "palette", FUNC(freeway_state::palette_init), 0x100); + GFXDECODE(config, "gfxdecode", "palette", gfx_freeway); + + mc6845_device &crtc(MC6845(config, "crtc", 10_MHz_XTAL / 16)); + crtc.set_char_width(8); + crtc.set_show_border_area(false); + crtc.set_screen("screen"); + crtc.set_update_row_callback(FUNC(freeway_state::update_row)); + crtc.out_hsync_callback().set("pit", FUNC(pit8254_device::write_clk0)); // guess + + ns16450_device &uart(NS16450(config, "uart", 10_MHz_XTAL / 8)); // type unknown + uart.out_int_callback().set(m_pic, FUNC(pic8259_device::ir2_w)); + uart.out_tx_callback().set("rs232", FUNC(rs232_port_device::write_txd)); + uart.out_rts_callback().set("rs232", FUNC(rs232_port_device::write_rts)); + uart.out_dtr_callback().set("rs232", FUNC(rs232_port_device::write_dtr)); + + rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, nullptr)); + rs232.rxd_handler().set("uart", FUNC(ns16450_device::rx_w)); + rs232.cts_handler().set("uart", FUNC(ns16450_device::cts_w)); + rs232.dsr_handler().set("uart", FUNC(ns16450_device::dsr_w)); + rs232.dcd_handler().set("uart", FUNC(ns16450_device::dcd_w)); +} + +// 8088 CPU +// Intel 8254 Programmable Interval Timer +// Intel 8259 +// 2x 8k SRAM +// 1x 32k SRAM +// 6845 video chip +// 5 roms +// Oscillator 10 MHz + +ROM_START(freeway) + ROM_REGION(0x10000, "program", 0) + ROM_LOAD("vip88.bin", 0x00000, 0x10000, CRC(aeba6d5e) SHA1(bb84f7040bf1b6976cb2c50b1ffdc59ae88df223)) + + ROM_REGION(0x18000, "gfx", 0) + ROM_LOAD("sb_51.bin", 0x00000, 0x8000, CRC(d25bd328) SHA1(b8c692298f6dc5fd5ae2f9e7701e14b0436a95bb)) // xxx0xxxxxxxxxxx = 0xFF + ROM_LOAD("sb_52.bin", 0x08000, 0x8000, CRC(f2b33acd) SHA1(e4786b4f00871d771aadacd9d6ec767691f4d939)) + ROM_LOAD("sb_53.bin", 0x10000, 0x8000, CRC(50407ae6) SHA1(2c6c4803905bed5f27c6783f99a24f8dee62c19b)) + + ROM_REGION(0x8000, "color_rom", 0) + ROM_LOAD("sb_cor.bin", 0x0000, 0x8000, CRC(5f86a160) SHA1(f21b7e0e6a407371c252d6fde6fcb32a2682824c)) // all 0xFF fill until 0x7C00; valid data is only 4 bits wide +ROM_END + +ROM_START(freewaya) + ROM_REGION(0x10000, "program", 0) + ROM_LOAD("memory_431b_eprom-512", 0x00000, 0x10000, CRC(64a23693) SHA1(ad8001c3652fb813d0f15875c7f9478fe2dd873c)) + + ROM_REGION(0x18000, "gfx", 0) + ROM_LOAD("rgb 1fw 256 vr 512b", 0x00000, 0x8000, CRC(b0bed9a0) SHA1(0275f1aa008963eb54f672565d3d5c1dd8c96213)) + ROM_LOAD("rgb 2fw 256 vr 512b", 0x08000, 0x8000, CRC(ed1bb4d8) SHA1(78f9eced819c1fa269e685bb176671158ffcec26)) + ROM_LOAD("rgb 3fw 256 vr 512b", 0x10000, 0x8000, CRC(c685c530) SHA1(deec9ce1df500f14b9ebd007d482473f97b3ecf3)) + + ROM_REGION(0x8000, "color_rom", 0) + ROM_LOAD("color_431b_eprom-256", 0x0000, 0x8000, CRC(e49fc782) SHA1(2c50cf644b7c6449880ed3d6e778ba116e123ae2)) // FIXED BITS (0000xxxx) + + ROM_REGION(0x21ee, "nvram", 0) + ROM_LOAD("ram_m48t08_431", 0x0000, 0x21ee, CRC(e8fe8d9c) SHA1(bf93ead6ae0f03a646b4952cb999cf0dbc58d223)) // weird size, check when emulation is more mature +ROM_END + +} // anonymous namespace + + +GAME(1999, freeway, 0, freeway, freeway, freeway_state, empty_init, ROT0, "NVC Electronica", "FreeWay (V5.12)", MACHINE_NO_SOUND | MACHINE_NOT_WORKING) +GAME(1997, freewaya, freeway, freeway, freeway, freeway_state, empty_init, ROT0, "NVC Electronica", "FreeWay (V4.31)", MACHINE_NO_SOUND | MACHINE_NOT_WORKING) |