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path: root/src/mess/drivers/cc40.c
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Diffstat (limited to 'src/mess/drivers/cc40.c')
-rw-r--r--src/mess/drivers/cc40.c641
1 files changed, 0 insertions, 641 deletions
diff --git a/src/mess/drivers/cc40.c b/src/mess/drivers/cc40.c
deleted file mode 100644
index ba5e937d423..00000000000
--- a/src/mess/drivers/cc40.c
+++ /dev/null
@@ -1,641 +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 "cpu/tms7000/tms7000.h"
-#include "video/hd44780.h"
-#include "sound/dac.h"
-#include "machine/nvram.h"
-#include "bus/generic/slot.h"
-#include "bus/generic/carts.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_dac(*this, "dac"),
- m_cart(*this, "cartslot"),
- m_key_matrix(*this, "IN"),
- m_battery_inp(*this, "BATTERY")
- {
- m_sysram[0] = NULL;
- m_sysram[1] = NULL;
- }
-
- required_device<tms70c20_device> m_maincpu;
- required_device<dac_device> m_dac;
- required_device<generic_slot_device> m_cart;
- required_ioport_array<8> m_key_matrix;
- required_ioport m_battery_inp;
-
- nvram_device *m_nvram[2];
-
- memory_region *m_cart_rom;
-
- UINT8 m_bus_control;
- UINT8 m_power;
- UINT8 m_banks;
- UINT8 m_clock_control;
- UINT8 m_clock_divider;
- UINT8 m_key_select;
-
- UINT8 *m_sysram[2];
- UINT16 m_sysram_size[2];
- UINT16 m_sysram_end[2];
- UINT16 m_sysram_mask[2];
-
- void postload();
- void init_sysram(int chip, UINT16 size);
- void update_lcd_indicator(UINT8 y, UINT8 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_WRITE8_MEMBER(sound_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);
-
- virtual void machine_reset();
- virtual void machine_start();
- DECLARE_PALETTE_INIT(cc40);
- DECLARE_INPUT_CHANGED_MEMBER(sysram_size_changed);
- DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cc40_cartridge);
-};
-
-
-
-/***************************************************************************
-
- File Handling
-
-***************************************************************************/
-
-DEVICE_IMAGE_LOAD_MEMBER(cc40_state, cc40_cartridge)
-{
- UINT32 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_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_PASS;
-}
-
-
-
-/***************************************************************************
-
- Video
-
-***************************************************************************/
-
-PALETTE_INIT_MEMBER(cc40_state, cc40)
-{
- 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(UINT8 y, UINT8 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
- output_set_lamp_value(y * 10 + x, state);
-}
-
-static HD44780_PIXEL_UPDATE(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
- cc40_state *driver_state = device.machine().driver_data<cc40_state>();
- driver_state->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);
-}
-
-WRITE8_MEMBER(cc40_state::sound_w)
-{
- // d0: piezo control
- m_dac->write_signed8((data & 1) ? 0x7f : 0);
-}
-
-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)
-{
- // 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 & 0x0f;
-}
-
-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)
-{
- // d0-d2: clock divider
- // d3: enable clock divider always
- // other bits: unused?
- if (m_clock_control != (data & 0x0f))
- {
- m_clock_control = data;
- update_clock_divider();
- }
-}
-
-READ8_MEMBER(cc40_state::keyboard_r)
-{
- UINT8 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;
-}
-
-static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8, cc40_state )
- ADDRESS_MAP_UNMAP_HIGH
-
- AM_RANGE(0x0110, 0x0110) AM_READWRITE(bus_control_r, bus_control_w)
- AM_RANGE(0x0111, 0x0111) AM_WRITE(power_w)
- AM_RANGE(0x0112, 0x0112) AM_NOP // d0-d3: Hexbus data
- AM_RANGE(0x0113, 0x0113) AM_NOP // d0: Hexbus available
- AM_RANGE(0x0114, 0x0114) AM_NOP // d0,d1: Hexbus handshake
- AM_RANGE(0x0115, 0x0115) AM_WRITE(sound_w)
- AM_RANGE(0x0116, 0x0116) AM_READ(battery_r)
- AM_RANGE(0x0119, 0x0119) AM_READWRITE(bankswitch_r, bankswitch_w)
- AM_RANGE(0x011a, 0x011a) AM_READWRITE(clock_control_r, clock_control_w)
- AM_RANGE(0x011e, 0x011f) AM_DEVREADWRITE("hd44780", hd44780_device, read, write)
-
- AM_RANGE(0x0800, 0x0fff) AM_RAM AM_SHARE("sysram.0")
- AM_RANGE(0x1000, 0x4fff) AM_READWRITE(sysram_r, sysram_w)
- AM_RANGE(0x5000, 0xcfff) AM_ROMBANK("cartbank")
- AM_RANGE(0xd000, 0xefff) AM_ROMBANK("sysbank")
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START( main_io_map, AS_IO, 8, cc40_state )
- AM_RANGE(TMS7000_PORTA, TMS7000_PORTA) AM_READ(keyboard_r)
- AM_RANGE(TMS7000_PORTB, TMS7000_PORTB) AM_WRITE(keyboard_w)
-ADDRESS_MAP_END
-
-
-
-/***************************************************************************
-
- Inputs
-
-***************************************************************************/
-
-INPUT_CHANGED_MEMBER(cc40_state::sysram_size_changed)
-{
- init_sysram((int)(FPTR)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, (void *)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, (void *)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, UINT16 size)
-{
- if (m_sysram[chip] == NULL)
- {
- // init to largest possible
- m_sysram[chip] = auto_alloc_array(machine(), UINT8, 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], 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
- 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);
-
- m_nvram[0] = machine().device<nvram_device>("sysram.1");
- m_nvram[1] = machine().device<nvram_device>("sysram.2");
- 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));
-}
-
-static MACHINE_CONFIG_START( cc40, cc40_state )
-
- /* basic machine hardware */
- MCFG_CPU_ADD("maincpu", TMS70C20, XTAL_5MHz / 2)
- MCFG_CPU_PROGRAM_MAP(main_map)
- MCFG_CPU_IO_MAP(main_io_map)
-
- MCFG_NVRAM_ADD_0FILL("sysram.0")
- MCFG_NVRAM_ADD_0FILL("sysram.1")
- MCFG_NVRAM_ADD_0FILL("sysram.2")
-
- /* video hardware */
- MCFG_SCREEN_ADD("screen", LCD)
- MCFG_SCREEN_REFRESH_RATE(60) // arbitrary
- MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
- MCFG_SCREEN_SIZE(6*31+1, 9*1+1+1)
- MCFG_SCREEN_VISIBLE_AREA(0, 6*31, 0, 9*1+1)
- MCFG_DEFAULT_LAYOUT(layout_cc40)
- MCFG_SCREEN_UPDATE_DEVICE("hd44780", hd44780_device, screen_update)
- MCFG_SCREEN_PALETTE("palette")
-
- MCFG_PALETTE_ADD("palette", 3)
- MCFG_PALETTE_INIT_OWNER(cc40_state, cc40)
-
- MCFG_HD44780_ADD("hd44780")
- MCFG_HD44780_LCD_SIZE(2, 16) // 2*16 internal
- MCFG_HD44780_PIXEL_UPDATE_CB(cc40_pixel_update)
-
- /* sound hardware */
- MCFG_SPEAKER_STANDARD_MONO("mono")
-
- MCFG_DAC_ADD("dac")
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
-
- /* cartridge */
- MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "cc40_cart")
- MCFG_GENERIC_EXTENSIONS("bin,rom,256")
- MCFG_GENERIC_LOAD(cc40_state, cc40_cartridge)
-
- MCFG_SOFTWARE_LIST_ADD("cart_list", "cc40_cart")
-MACHINE_CONFIG_END
-
-
-
-/***************************************************************************
-
- ROM Definitions
-
-***************************************************************************/
-
-ROM_START( cc40 )
- ROM_REGION( 0x10000, "maincpu", 0 )
- ROM_LOAD( "tms70c20.bin", 0xf800, 0x0800, 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
-
-
-COMP( 1983, cc40, 0, 0, cc40, cc40, driver_device, 0, "Texas Instruments", "Compact Computer 40", MACHINE_SUPPORTS_SAVE )