diff options
Diffstat (limited to 'src/mame/drivers/cc40.cpp')
-rw-r--r-- | src/mame/drivers/cc40.cpp | 644 |
1 files changed, 0 insertions, 644 deletions
diff --git a/src/mame/drivers/cc40.cpp b/src/mame/drivers/cc40.cpp deleted file mode 100644 index bbeeda6e490..00000000000 --- a/src/mame/drivers/cc40.cpp +++ /dev/null @@ -1,644 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:hap -/*************************************************************************** - - Texas Instruments Compact Computer 40 (aka CC-40) - hardware family: CC-40 -> CC-40+(unreleased) -> TI-74 BASICALC -> TI-95 PROCALC - - --------------------------------------------- - | --------------------------------------- | - | | | | - | | LCD screen | | - | | | --------------- - | --------------------------------------- | - | | - | | - | | - | *HD44100H | - | *HD44780A00 | - | | - | | - | | - ----|||||||||||-----------------------------|||||||||||---- - ||||||||||| ||||||||||| - ----|||||||||||-----------------------------|||||||||||---- - | | - | HM6116LP-4 HM6116LP-4 | - | | - | | - | HM6116LP-4 TMX70C20N2L | - | 5MHz | - | AMI 1041036-1 | - | HN61256PC09 | - | *Cartridge | - | --------------- - | | - | ------------------------------------- - |*HEXBUS| - --------- - - HM6116LP-4 - Hitachi 2KB SRAM (newer 18KB version has two HM6264 8KB chips) - HN61256PC09 - Hitachi DIP-28 32KB CMOS Mask PROM - TMX70C20N2L - Texas Instruments TMS70C20 CPU (128 bytes RAM, 2KB ROM) @ 2.5MHz, 40 pins - "X" implies prototype - AMI 1041036-1 - 68-pin QFP AMI Gate Array - HD44100H - 60-pin QFP Hitachi HD44100 LCD Driver - HD44780A00 - 80-pin TFP Hitachi HD44780 LCD Controller - - * - indicates that it's on the other side of the PCB - - - CC-40 is powered by 4 AA batteries. These will also save internal RAM, - provided that the machine is turned off properly. If a program is running, - you may have to press [BREAK] before turning the CC-40 off. If RAM contents - ends up dodgy somehow, just delete the nvram files. - - Officially, minimum total RAM size is 6KB. The system will still boot with less, - but don't expect all software to work properly. - - To run a cartridge, usually the command RUN "DIR" shows which program(s) - can be loaded. Load a program by pressing the [RUN] key while viewing the list, - or manually with the command RUN "<shortname of program in list>" - - - TODO: - - external RAM cartridge (bus_control_w cartridge memory addressing) - - auto clock divider on slow memory access - - Hexbus interface and peripherals - * HX-1000: color plotter - * HX-1010: thermal printer - * HX-3000: RS-232 interface - * HX-3100: modem - * HX-3200: Centronics printer interface - -***************************************************************************/ - -#include "emu.h" -#include "bus/generic/slot.h" -#include "bus/generic/carts.h" -#include "cpu/tms7000/tms7000.h" -#include "machine/nvram.h" -#include "sound/dac.h" -#include "sound/volt_reg.h" -#include "video/hd44780.h" - -#include "emupal.h" -#include "screen.h" -#include "softlist.h" -#include "speaker.h" - -#include "cc40.lh" - - -class cc40_state : public driver_device -{ -public: - cc40_state(const machine_config &mconfig, device_type type, const char *tag) : - driver_device(mconfig, type, tag), - m_maincpu(*this, "maincpu"), - m_cart(*this, "cartslot"), - m_key_matrix(*this, "IN.%u", 0), - m_battery_inp(*this, "BATTERY"), - m_nvram(*this, "sysram.%u", 1U), - m_lamps(*this, "lamp%u", 0U) - { - m_sysram[0] = nullptr; - m_sysram[1] = nullptr; - } - - DECLARE_INPUT_CHANGED_MEMBER(sysram_size_changed); - - void cc40(machine_config &config); - -protected: - virtual void machine_reset() override; - virtual void machine_start() override; - -private: - void postload(); - void init_sysram(int chip, u16 size); - void update_lcd_indicator(u8 y, u8 x, int state); - void update_clock_divider(); - - DECLARE_READ8_MEMBER(sysram_r); - DECLARE_WRITE8_MEMBER(sysram_w); - DECLARE_READ8_MEMBER(bus_control_r); - DECLARE_WRITE8_MEMBER(bus_control_w); - DECLARE_WRITE8_MEMBER(power_w); - DECLARE_READ8_MEMBER(battery_r); - DECLARE_READ8_MEMBER(bankswitch_r); - DECLARE_WRITE8_MEMBER(bankswitch_w); - DECLARE_READ8_MEMBER(clock_control_r); - DECLARE_WRITE8_MEMBER(clock_control_w); - DECLARE_READ8_MEMBER(keyboard_r); - DECLARE_WRITE8_MEMBER(keyboard_w); - - void cc40_palette(palette_device &palette) const; - DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cart_load); - HD44780_PIXEL_UPDATE(cc40_pixel_update); - - void main_map(address_map &map); - - required_device<tms70c20_device> m_maincpu; - required_device<generic_slot_device> m_cart; - required_ioport_array<8> m_key_matrix; - required_ioport m_battery_inp; - required_device_array<nvram_device, 2> m_nvram; - - memory_region *m_cart_rom; - - u8 m_bus_control; - u8 m_power; - u8 m_banks; - u8 m_clock_control; - u8 m_clock_divider; - u8 m_key_select; - - std::unique_ptr<u8[]> m_sysram[2]; - u16 m_sysram_size[2]; - u16 m_sysram_end[2]; - u16 m_sysram_mask[2]; - output_finder<80> m_lamps; -}; - - - -/*************************************************************************** - - File Handling - -***************************************************************************/ - -DEVICE_IMAGE_LOAD_MEMBER(cc40_state::cart_load) -{ - u32 size = m_cart->common_get_size("rom"); - - // max size is 4*32KB - if (size > 0x20000) - { - image.seterror(IMAGE_ERROR_UNSPECIFIED, "Invalid file size"); - return image_init_result::FAIL; - } - - m_cart->rom_alloc(0x20000, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE); // allocate a larger ROM region to have 4x32K banks - m_cart->common_load_rom(m_cart->get_rom_base(), size, "rom"); - - return image_init_result::PASS; -} - - - -/*************************************************************************** - - Video - -***************************************************************************/ - -void cc40_state::cc40_palette(palette_device &palette) const -{ - palette.set_pen_color(0, rgb_t(138, 146, 148)); // background - palette.set_pen_color(1, rgb_t(92, 83, 88)); // lcd pixel on - palette.set_pen_color(2, rgb_t(131, 136, 139)); // lcd pixel off -} - -void cc40_state::update_lcd_indicator(u8 y, u8 x, int state) -{ - // reference _________________... - // output# |10 11 12 13 14 0 1 2 3 4 - // above | < SHIFT CTL FN DEG RAD GRAD I/O UCL > - // ---- raw lcd screen here ---- - // under | ERROR v v v v v v _LOW - // output# | 60 61 62 63 50 51 52 53 - m_lamps[y * 10 + x] = state ? 1 : 0; -} - -HD44780_PIXEL_UPDATE(cc40_state::cc40_pixel_update) -{ - // char size is 5x7 + cursor - if (x > 4 || y > 7) - return; - - if (line == 1 && pos == 15) - { - // the last char is used to control the 18 lcd indicators - update_lcd_indicator(y, x, state); - } - else if (line < 2 && pos < 16) - { - // internal: 2*16, external: 1*31 - if (y == 7) y++; // the cursor is slightly below the character - bitmap.pix16(1 + y, 1 + line*16*6 + pos*6 + x) = state ? 1 : 2; - } -} - - - -/*************************************************************************** - - I/O, Memory Maps - -***************************************************************************/ - -READ8_MEMBER(cc40_state::sysram_r) -{ - // read system ram, based on addressing configured in bus_control_w - if (offset < m_sysram_end[0] && m_sysram_size[0] != 0) - return m_sysram[0][offset & (m_sysram_size[0] - 1)]; - else if (offset < m_sysram_end[1] && m_sysram_size[1] != 0) - return m_sysram[1][(offset - m_sysram_end[0]) & (m_sysram_size[1] - 1)]; - else - return 0xff; -} - -WRITE8_MEMBER(cc40_state::sysram_w) -{ - // write system ram, based on addressing configured in bus_control_w - if (offset < m_sysram_end[0] && m_sysram_size[0] != 0) - m_sysram[0][offset & (m_sysram_size[0] - 1)] = data; - else if (offset < m_sysram_end[1] && m_sysram_size[1] != 0) - m_sysram[1][(offset - m_sysram_end[0]) & (m_sysram_size[1] - 1)] = data; -} - -READ8_MEMBER(cc40_state::bus_control_r) -{ - return m_bus_control; -} - -WRITE8_MEMBER(cc40_state::bus_control_w) -{ - // d0,d1: auto enable clock divider on cartridge memory access (d0: area 1, d1: area 2) - - // d2,d3: system ram addressing - // 00: 8K, 8K @ $1000-$2fff, $3000-$4fff - // 01: 8K, 2K @ $1000-$2fff, $3000-$37ff - // 10: 2K, 8K @ $1000-$17ff, $1800-$37ff - // 11: 2K, 2K @ $1000-$17ff, $1800-$1fff - int d2 = (data & 4) ? 0x0800 : 0x2000; - int d3 = (data & 8) ? 0x0800 : 0x2000; - m_sysram_end[0] = d3; - m_sysram_mask[0] = d3 - 1; - m_sysram_end[1] = d3 + d2; - m_sysram_mask[1] = d2 - 1; - - // d4,d5: cartridge memory addressing - // 00: 2K @ $5000-$57ff & $5800-$5fff - // 01: 8K @ $5000-$6fff & $7000-$8fff - // 10:16K @ $5000-$8fff & $9000-$cfff - // 11: 8K @ $1000-$2fff & $3000-$4fff - system ram is disabled - - // d6: auto enable clock divider on system rom access - - // d7: unused? - m_bus_control = data; -} - -WRITE8_MEMBER(cc40_state::power_w) -{ - // d0: power-on hold latch - m_power = data & 1; - - // stop running - if (!m_power) - m_maincpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE); -} - -READ8_MEMBER(cc40_state::battery_r) -{ - // d0: low battery sense line (0 = low power) - return m_battery_inp->read(); -} - -READ8_MEMBER(cc40_state::bankswitch_r) -{ - return m_banks; -} - -WRITE8_MEMBER(cc40_state::bankswitch_w) -{ - data &= 0x0f; - - // d0-d1: system rom bankswitch - membank("sysbank")->set_entry(data & 3); - - // d2-d3: cartridge 32KB page bankswitch - if (m_cart_rom) - membank("cartbank")->set_entry(data >> 2 & 3); - - m_banks = data; -} - -READ8_MEMBER(cc40_state::clock_control_r) -{ - return m_clock_control; -} - -void cc40_state::update_clock_divider() -{ - // 2.5MHz /3 to /17 in steps of 2 - m_clock_divider = (~m_clock_control & 7) * 2 + 1; - m_maincpu->set_clock_scale((m_clock_control & 8) ? (1.0 / (double)m_clock_divider) : 1); -} - -WRITE8_MEMBER(cc40_state::clock_control_w) -{ - data &= 0x0f; - - // d0-d2: clock divider - // d3: enable clock divider always - // other bits: unused? - if (m_clock_control != data) - { - m_clock_control = data; - update_clock_divider(); - } -} - -READ8_MEMBER(cc40_state::keyboard_r) -{ - u8 ret = 0; - - // read selected keyboard rows - for (int i = 0; i < 8; i++) - { - if (m_key_select >> i & 1) - ret |= m_key_matrix[i]->read(); - } - - return ret; -} - -WRITE8_MEMBER(cc40_state::keyboard_w) -{ - // d(0-7): select keyboard column - m_key_select = data; -} - -void cc40_state::main_map(address_map &map) -{ - map.unmap_value_high(); - - map(0x0110, 0x0110).rw(FUNC(cc40_state::bus_control_r), FUNC(cc40_state::bus_control_w)); - map(0x0111, 0x0111).w(FUNC(cc40_state::power_w)); - map(0x0112, 0x0112).noprw(); // d0-d3: Hexbus data - map(0x0113, 0x0113).noprw(); // d0: Hexbus available - map(0x0114, 0x0114).noprw(); // d0,d1: Hexbus handshake - map(0x0115, 0x0115).w("dac", FUNC(dac_bit_interface::data_w)); // d0: piezo control - map(0x0116, 0x0116).r(FUNC(cc40_state::battery_r)); - map(0x0119, 0x0119).rw(FUNC(cc40_state::bankswitch_r), FUNC(cc40_state::bankswitch_w)); - map(0x011a, 0x011a).rw(FUNC(cc40_state::clock_control_r), FUNC(cc40_state::clock_control_w)); - map(0x011e, 0x011f).rw("hd44780", FUNC(hd44780_device::read), FUNC(hd44780_device::write)); - - map(0x0800, 0x0fff).ram().share("sysram.0"); - map(0x1000, 0x4fff).rw(FUNC(cc40_state::sysram_r), FUNC(cc40_state::sysram_w)); - map(0x5000, 0xcfff).bankr("cartbank"); - map(0xd000, 0xefff).bankr("sysbank"); -} - - - -/*************************************************************************** - - Inputs - -***************************************************************************/ - -INPUT_CHANGED_MEMBER(cc40_state::sysram_size_changed) -{ - init_sysram((int)param, newval << 11); -} - -static INPUT_PORTS_START( cc40 ) - PORT_START("RAMSIZE") - PORT_CONFNAME( 0x07, 0x01, "RAM Chip 1") PORT_CHANGED_MEMBER(DEVICE_SELF, cc40_state, sysram_size_changed, 0) - PORT_CONFSETTING( 0x00, "None" ) - PORT_CONFSETTING( 0x01, "2KB" ) - PORT_CONFSETTING( 0x04, "8KB" ) - PORT_CONFNAME( 0x70, 0x10, "RAM Chip 2") PORT_CHANGED_MEMBER(DEVICE_SELF, cc40_state, sysram_size_changed, 1) - PORT_CONFSETTING( 0x00, "None" ) // note: invalid configuration, unless Chip 1 is also 0x00 - PORT_CONFSETTING( 0x10, "2KB" ) - PORT_CONFSETTING( 0x40, "8KB" ) - - PORT_START("BATTERY") - PORT_CONFNAME( 0x01, 0x01, "Battery Status" ) - PORT_CONFSETTING( 0x00, "Low" ) - PORT_CONFSETTING( 0x01, DEF_STR( Normal ) ) - - // 8x8 keyboard matrix, RESET and ON buttons are not on it. Unused entries are not connected, but some might have a purpose for factory testing(?) - // The numpad number keys are shared with the ones on the main keyboard, also on the real machine. - // PORT_NAME lists functions under [SHIFT] as secondaries. - PORT_START("IN.0") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1_PAD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5_PAD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7_PAD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') - - PORT_START("IN.1") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') - - PORT_START("IN.2") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') - - PORT_START("IN.3") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') - - PORT_START("IN.4") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_NAME("SPACE") - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('?') - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') - - PORT_START("IN.5") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0') PORT_CHAR('\'') - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(END)) PORT_NAME("CLR UCL") - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_NAME("LEFT DEL") - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_NAME("RIGHT INS") - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_NAME("UP PB") - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) PORT_NAME("/") - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_NAME("DOWN") - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR('9') PORT_CHAR(')') - - PORT_START("IN.6") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR('.') PORT_CHAR('>') - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) PORT_NAME("+") - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13) PORT_NAME("ENTER") - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) PORT_NAME("*") - - PORT_START("IN.7") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2) PORT_NAME("CTL") - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_NAME("SHIFT") - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(PAUSE)) PORT_NAME("BREAK") - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_NAME("RUN") - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_NAME("FN") - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PGDN) PORT_CHAR(UCHAR_MAMEKEY(PGDN)) PORT_NAME("OFF") - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) -INPUT_PORTS_END - - - -/*************************************************************************** - - Machine Config - -***************************************************************************/ - -void cc40_state::machine_reset() -{ - m_power = 1; - - update_clock_divider(); - - address_space &space = m_maincpu->space(AS_PROGRAM); - bankswitch_w(space, 0, 0); -} - -void cc40_state::init_sysram(int chip, u16 size) -{ - if (m_sysram[chip] == nullptr) - { - // init to largest possible - m_sysram[chip] = std::make_unique<u8[]>(0x2000); - save_pointer(NAME(m_sysram[chip]), 0x2000, chip); - - save_item(NAME(m_sysram_size[chip]), chip); - save_item(NAME(m_sysram_end[chip]), chip); - save_item(NAME(m_sysram_mask[chip]), chip); - } - - m_nvram[chip]->set_base(m_sysram[chip].get(), size); - m_sysram_size[chip] = size; -} - -void cc40_state::postload() -{ - init_sysram(0, m_sysram_size[0]); - init_sysram(1, m_sysram_size[1]); - - update_clock_divider(); -} - -void cc40_state::machine_start() -{ - // init - m_lamps.resolve(); - std::string region_tag; - m_cart_rom = memregion(region_tag.assign(m_cart->tag()).append(GENERIC_ROM_REGION_TAG).c_str()); - - membank("sysbank")->configure_entries(0, 4, memregion("system")->base(), 0x2000); - if (m_cart_rom) - membank("cartbank")->configure_entries(0, 4, m_cart_rom->base(), 0x8000); - else - membank("cartbank")->set_base(memregion("maincpu")->base() + 0x5000); - - init_sysram(0, 0x800); // default to 6KB - init_sysram(1, 0x800); // " - - address_space &space = m_maincpu->space(AS_PROGRAM); - bus_control_w(space, 0, 0); - bankswitch_w(space, 0, 0); - - // zerofill other - m_power = 0; - m_clock_control = 0; - m_key_select = 0; - - // register for savestates - save_item(NAME(m_bus_control)); - save_item(NAME(m_power)); - save_item(NAME(m_banks)); - save_item(NAME(m_clock_control)); - save_item(NAME(m_clock_divider)); - save_item(NAME(m_key_select)); - - machine().save().register_postload(save_prepost_delegate(FUNC(cc40_state::postload), this)); -} - -void cc40_state::cc40(machine_config &config) -{ - /* basic machine hardware */ - TMS70C20(config, m_maincpu, XTAL(5'000'000) / 2); - m_maincpu->set_addrmap(AS_PROGRAM, &cc40_state::main_map); - m_maincpu->in_porta().set(FUNC(cc40_state::keyboard_r)); - m_maincpu->out_portb().set(FUNC(cc40_state::keyboard_w)); - - NVRAM(config, "sysram.0", nvram_device::DEFAULT_ALL_0); - NVRAM(config, "sysram.1", nvram_device::DEFAULT_ALL_0); - NVRAM(config, "sysram.2", nvram_device::DEFAULT_ALL_0); - - /* video hardware */ - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); - screen.set_refresh_hz(60); // arbitrary - screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); - screen.set_size(6*31+1, 9*1+1+1); - screen.set_visarea_full(); - config.set_default_layout(layout_cc40); - screen.set_screen_update("hd44780", FUNC(hd44780_device::screen_update)); - screen.set_palette("palette"); - - PALETTE(config, "palette", FUNC(cc40_state::cc40_palette), 3); - - hd44780_device &hd44780(HD44780(config, "hd44780", 0)); - hd44780.set_lcd_size(2, 16); // 2*16 internal - hd44780.set_pixel_update_cb(FUNC(cc40_state::cc40_pixel_update)); - - /* sound hardware */ - SPEAKER(config, "speaker").front_center(); - DAC_1BIT(config, "dac").add_route(ALL_OUTPUTS, "speaker", 0.25); - VOLTAGE_REGULATOR(config, "vref").add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT); - - /* cartridge */ - GENERIC_CARTSLOT(config, "cartslot", generic_plain_slot, "cc40_cart", "bin,rom,256").set_device_load(FUNC(cc40_state::cart_load)); - SOFTWARE_LIST(config, "cart_list").set_original("cc40_cart"); -} - - - -/*************************************************************************** - - ROM Definitions - -***************************************************************************/ - -ROM_START( cc40 ) - ROM_REGION( 0x800, "maincpu", 0 ) - ROM_LOAD( "tms70c20.bin", 0x000, 0x800, CRC(a21bf6ab) SHA1(3da8435ecbee143e7fa149ee8e1c92949bade1d8) ) // internal cpu rom - - ROM_REGION( 0x8000, "system", 0 ) - ROM_LOAD( "hn61256pc09.bin", 0x0000, 0x8000, CRC(f5322fab) SHA1(1b5c4052a53654363c458f75eac7a27f0752def6) ) // system rom, banked -ROM_END - - -// YEAR NAME PARENT CMP MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1983, cc40, 0, 0, cc40, cc40, cc40_state, empty_init, "Texas Instruments", "Compact Computer 40", MACHINE_SUPPORTS_SAVE ) |