diff options
author | Miodrag Milanovic <mmicko@gmail.com> | 2015-11-08 12:56:12 +0100 |
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committer | Miodrag Milanovic <mmicko@gmail.com> | 2015-11-08 12:56:12 +0100 |
commit | 7c19aac60e12d6f5ea301bdb34d7826a01e0b06f (patch) | |
tree | f310d86aa2c6bfc19d115307dedde4eb0cd52dad /src/mame/drivers/ti74.cpp | |
parent | a57b46ae933badd7441ce1644711dbb851e2b504 (diff) |
Rename *.c -> *.cpp in our source (nw)
Diffstat (limited to 'src/mame/drivers/ti74.cpp')
-rw-r--r-- | src/mame/drivers/ti74.cpp | 606 |
1 files changed, 606 insertions, 0 deletions
diff --git a/src/mame/drivers/ti74.cpp b/src/mame/drivers/ti74.cpp new file mode 100644 index 00000000000..c38abbe5096 --- /dev/null +++ b/src/mame/drivers/ti74.cpp @@ -0,0 +1,606 @@ +// license:BSD-3-Clause +// copyright-holders:hap +/*************************************************************************** + + Texas Instruments TI-74 BASICALC + Texas Instruments TI-95 PROCALC + hardware family: CC-40 -> TI-74 BASICALC -> TI-95 PROCALC + + TI-74 PCB layout: + note: TI-95 PCB is nearly the same, just with a different size LCD screen, + its CPU is labeled C70011, and the system ROM is labeled HN61256PC95. + + DOCK-BUS + --||||||||--- + C == | + a == | + r == HN61256 | + t == ---------------------------- + | | + ------- C70009 4MHz | + | HM6264 RC4193N | + | | + | | + | | + | | + ---------------||||||||||||||||||||||||------- + |||||||||||||||||||||||| + ---------------||||||||||||||||||||||||------- + | *HD44100H *HD44780A00 | + | | + | | + | | + | | + ---------- | + | ----------------------------------| + | | || + | | LCD screen || + | | || + | ----------------------------------| + ------------------------------------- + + IC1 HN61256PC93 - Hitachi DIP-28 32KB CMOS Mask PROM + IC2 C70009 - Texas Instruments TMS70C46, 54 pins. Basically a TMS70C40 with some TI custom I/O mods. + 128 bytes internal RAM, 4KB internal ROM, running at max 4MHz. + IC3 HM6264LP-15 - Hitachi 8KB SRAM (battery backed) + RC4193N - Micropower Switching Regulator + 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 + + + Overall, the hardware is very similar to TI CC-40. A lot has been shuffled around + to cut down on complexity (and probably for protection too). To reduce power usage + even more, the OS often idles while waiting for any keypress that triggers an interrupt + and wakes the processor up. + + The machine is powered by 4 AAA batteries. These will also save internal RAM, + provided that the machine is turned off properly. + + + TODO: + - it runs too fast due to missing clock divider emulation in TMS70C46 + - external ram cartridge + - DOCK-BUS interface and peripherals, compatible with both TI-74 and TI-95 + * CI-7 cassette interface + * PC-324 thermal printer + (+ old Hexbus devices can be connected via a converter cable) + +***************************************************************************/ + +#include "emu.h" +#include "cpu/tms7000/tms7000.h" +#include "video/hd44780.h" +#include "machine/nvram.h" +#include "bus/generic/slot.h" +#include "bus/generic/carts.h" +#include "softlist.h" + +#include "ti74.lh" +#include "ti95.lh" + + +class ti74_state : public driver_device +{ +public: + ti74_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"), + m_battery_inp(*this, "BATTERY") + { } + + required_device<tms70c46_device> m_maincpu; + required_device<generic_slot_device> m_cart; + required_ioport_array<8> m_key_matrix; + required_ioport m_battery_inp; + + UINT8 m_key_select; + UINT8 m_power; + + void update_lcd_indicator(UINT8 y, UINT8 x, int state); + void update_battery_status(int state); + + DECLARE_READ8_MEMBER(keyboard_r); + DECLARE_WRITE8_MEMBER(keyboard_w); + DECLARE_WRITE8_MEMBER(bankswitch_w); + + virtual void machine_reset(); + virtual void machine_start(); + DECLARE_PALETTE_INIT(ti74); + DECLARE_INPUT_CHANGED_MEMBER(battery_status_changed); + DECLARE_DEVICE_IMAGE_LOAD_MEMBER(ti74_cartridge); +}; + + + +/*************************************************************************** + + File Handling + +***************************************************************************/ + +DEVICE_IMAGE_LOAD_MEMBER(ti74_state, ti74_cartridge) +{ + UINT32 size = m_cart->common_get_size("rom"); + + // max size is 32KB + if (size > 0x8000) + { + image.seterror(IMAGE_ERROR_UNSPECIFIED, "Invalid file size"); + return IMAGE_INIT_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_PASS; +} + + + +/*************************************************************************** + + Video + +***************************************************************************/ + +PALETTE_INIT_MEMBER(ti74_state, ti74) +{ + 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 ti74_state::update_lcd_indicator(UINT8 y, UINT8 x, int state) +{ + // TI-74 ref._________________... + // output# |10 11 12 13 14 2 3 4 + // above | < SHIFT CTL FN I/O UCL _LOW > + // ---- raw lcd screen here ---- + // under | BASIC CALC DEG RAD GRAD STAT + // output# | 63 64 1 62 53 54 + // + // TI-95 ref._________________... + // output# | 40 43 41 44 42 12 11 10/13/14 0 1 2 + // above | _LOW _ERROR 2nd INV ALPHA LC INS DEGRAD HEX OCT I/O + // screen- | _P{70} <{71} RUN{3} + // area . SYS{4} + output_set_lamp_value(y * 10 + x, state); +} + +static HD44780_PIXEL_UPDATE(ti74_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 14 lcd indicators + ti74_state *driver_state = device.machine().driver_data<ti74_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; + } +} + +static HD44780_PIXEL_UPDATE(ti95_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 17 lcd indicators + ti74_state *driver_state = device.machine().driver_data<ti74_state>(); + driver_state->update_lcd_indicator(y, x, state); + } + else if (line == 0 && pos < 16) + { + // 1st line is simply 16 chars + if (y == 7) y++; // the cursor is slightly below the char + bitmap.pix16(10 + y, 1 + pos*6 + x) = state ? 1 : 2; + } + else if (line == 1 && pos < 15 && y < 7) + { + // 2nd line is segmented into 5 groups of 3 chars, there is no cursor + // note: the chars are smaller than on the 1st line (this is handled in .lay file) + const int gap = 9; + int group = pos / 3; + bitmap.pix16(1 + y, 1 + group*gap + pos*6 + x) = state ? 1 : 2; + } +} + + + +/*************************************************************************** + + I/O, Memory Maps + +***************************************************************************/ + +READ8_MEMBER(ti74_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(ti74_state::keyboard_w) +{ + // d(0-7): select keyboard column + m_key_select = data; +} + +WRITE8_MEMBER(ti74_state::bankswitch_w) +{ + // d0-d1: system rom bankswitch + membank("sysbank")->set_entry(data & 3); + + // d2: power-on latch + if (~data & 4 && m_power) + { + m_power = 0; + m_maincpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE); // stop running + } + + // d3: N/C +} + +static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8, ti74_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x1000, 0x1001) AM_DEVREADWRITE("hd44780", hd44780_device, read, write) + AM_RANGE(0x2000, 0x3fff) AM_RAM AM_SHARE("sysram.ic3") + //AM_RANGE(0x4000, 0xbfff) // mapped by the cartslot + AM_RANGE(0xc000, 0xdfff) AM_ROMBANK("sysbank") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( main_io_map, AS_IO, 8, ti74_state ) + AM_RANGE(TMS7000_PORTA, TMS7000_PORTA) AM_READ(keyboard_r) + AM_RANGE(TMS7000_PORTB, TMS7000_PORTB) AM_WRITE(bankswitch_w) + AM_RANGE(TMS7000_PORTE, TMS7000_PORTE) AM_WRITE(keyboard_w) AM_READNOP +ADDRESS_MAP_END + + + +/*************************************************************************** + + Inputs + +***************************************************************************/ + +INPUT_CHANGED_MEMBER(ti74_state::battery_status_changed) +{ + if (machine().phase() == MACHINE_PHASE_RUNNING) + update_battery_status(newval); +} + +static INPUT_PORTS_START( ti74 ) + PORT_START("BATTERY") + PORT_CONFNAME( 0x01, 0x01, "Battery Status" ) PORT_CHANGED_MEMBER(DEVICE_SELF, ti74_state, battery_status_changed, 0) + 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 have a purpose for factory testing. + // For convenience, number keys are mapped to number row too. + // PORT_NAME lists functions under [SHIFT] and [MODE] or [STAT] as secondaries. + PORT_START("IN.0") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_NAME("m M Frac") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_NAME("k K Frq") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_NAME("i I " UTF8_SQUAREROOT"x") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_NAME(UTF8_LEFT" " UTF8_LEFT) + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_NAME("u U x" UTF8_POW_2) + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_NAME("j J nCr") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_NAME("n N Intg") + + PORT_START("IN.1") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('%') + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_NAME("l L (x,y)") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_NAME("o O 1/x") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_NAME(UTF8_RIGHT" EE") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_NAME("y Y log") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_NAME("h H nPr") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_NAME("b B EXC") + + PORT_START("IN.2") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_CHAR('\'') PORT_NAME("SPACE ' " UTF8_CAPITAL_DELTA"%") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') PORT_NAME("; : " UTF8_CAPITAL_SIGMA"+") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_NAME("p P y" UTF8_POW_X) + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_CHAR('(') PORT_NAME(UTF8_UP" (") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_NAME("t T ln(x)") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_NAME("g G n!") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_NAME("v V SUM") + + PORT_START("IN.3") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13) PORT_CHAR('=') PORT_NAME("ENTER =") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED ) + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(END)) PORT_NAME("CLR UCL CE/C") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_CHAR(')') PORT_NAME(UTF8_DOWN" )") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_NAME("RUN x<>y") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_NAME("r R " UTF8_SMALL_PI) + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_NAME("f F P>R") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_NAME("c C RCL") + + PORT_START("IN.4") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('~') PORT_CHAR('?') PORT_NAME("+/- ? CSR") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1_PAD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_NAME("1 ! r") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_NAME("4 $ " UTF8_CAPITAL_SIGMA"x") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7_PAD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_NAME("7 DEL " UTF8_CAPITAL_SIGMA"x" UTF8_POW_2) + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(PAUSE)) PORT_NAME("BREAK") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_NAME("e E tan") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_NAME("d D DRG>") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_NAME("x X STO") + + PORT_START("IN.5") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0_PAD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('<') PORT_NAME("0 < x" UTF8_PRIME) + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_NAME("2 \" a") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5_PAD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('&') PORT_NAME("5 & " UTF8_CAPITAL_SIGMA"y") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_NAME("8 INS " UTF8_CAPITAL_SIGMA"y" UTF8_POW_2) + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PGUP) PORT_CHAR(UCHAR_MAMEKEY(PGUP)) PORT_NAME("MODE") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_NAME("w W cos") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_NAME("s S DRG") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_NAME("z Z PRINT") + + PORT_START("IN.6") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR('.') PORT_CHAR('>') PORT_NAME(". > y" UTF8_PRIME) // 2 on the keyboard, same scancode + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_NAME("3 # b") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_NAME("6 ^ n") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9_PAD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_NAME("9 PB " UTF8_CAPITAL_SIGMA"xy") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PGDN) PORT_CHAR(UCHAR_MAMEKEY(PGDN)) PORT_NAME("OFF") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_NAME("q Q sin") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_NAME("a A DMS>DD") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) + + PORT_START("IN.7") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) PORT_NAME("+ s(y)") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_NAME("- s(x)") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) PORT_NAME("* y" UTF8_NONSPACE_MACRON) + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) PORT_NAME("/ x" UTF8_NONSPACE_MACRON) + 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 hyp") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2) PORT_NAME("CTL STAT") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_NAME("SHIFT INV") +INPUT_PORTS_END + +static INPUT_PORTS_START( ti95 ) + PORT_START("BATTERY") + PORT_CONFNAME( 0x01, 0x01, "Battery Status" ) PORT_CHANGED_MEMBER(DEVICE_SELF, ti74_state, battery_status_changed, 0) + PORT_CONFSETTING( 0x00, "Low" ) + PORT_CONFSETTING( 0x01, DEF_STR( Normal ) ) + + // 8x8 keyboard matrix, RESET and ON buttons are not on it. + // For convenience, number keys are mapped to number row too. + // PORT_NAME lists functions under [ALPHA] and [2nd] as secondaries. + PORT_START("IN.0") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PGDN) PORT_NAME("OFF") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_NAME("BREAK Q") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_NAME("SIN A") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_NAME("I/O Z") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PGUP) PORT_NAME("HELP ASM") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(')') PORT_NAME(") ] DRG") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) PORT_NAME(UTF8_DIVIDE" \\ DFN") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR('=') PORT_NAME("= ~ TRACE") + + PORT_START("IN.1") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_NAME("EE { ENG") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_NAME("HALT W") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_NAME("COS S") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_NAME("FILES X") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT) PORT_NAME("ALPHA PART") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_NAME("3 ; SBL") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) PORT_NAME("+ & RTN") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_NAME("2 : GTL") + + PORT_START("IN.2") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F1) PORT_NAME("F1") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_NAME(UTF8_CAPITAL_SIGMA"+ E") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_NAME("TAN D") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_NAME("STAT C") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("LEARN PC") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_NAME("6 @ CP") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_NAME("- _ 13d") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5_PAD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_NAME("5 % CMS") + + PORT_START("IN.3") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F2) PORT_NAME("F2") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_NAME("x~t R AH") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_NAME("LN F") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_NAME("CONV V") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME) PORT_NAME("OLD NOP") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9_PAD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_NAME("9 > x!") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) PORT_NAME(UTF8_MULTIPLY" ^ " UTF8_SMALL_PI) + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_NAME("8 < nCr") + + PORT_START("IN.4") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F3) PORT_NAME("F3") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_NAME("HYP T BH") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_NAME("LOG G") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_NAME("NUM B") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_NAME("RUN SPACE") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0_PAD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_NAME("0 $ PAUSE") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR('.') PORT_NAME(". ? ADV") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_NAME("+/- ! PRINT") + + PORT_START("IN.5") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F4) PORT_NAME("F4") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_NAME("INCR Y CH") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_NAME("x" UTF8_POW_2" H") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_NAME("FLAGS N") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LEFT) PORT_NAME(UTF8_LEFT" DEL") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_NAME("RCL O FH") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_NAME("INV P") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7_PAD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_NAME("7 } nPr") + + PORT_START("IN.6") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F5) PORT_NAME("F5") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_NAME("EXC U DH") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_NAME(UTF8_SQUAREROOT"x J") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_NAME("TESTS M") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RIGHT) PORT_NAME(UTF8_RIGHT" INS") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_NAME("y" UTF8_POW_X" L") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("2nd") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_4) PORT_CHAR('4' )PORT_NAME("4 IND") + + PORT_START("IN.7") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('(') PORT_NAME("( [ FIX") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_NAME("STO I EH") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_NAME("1/x K") + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_NAME("FUNC , \"") + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_END) PORT_NAME("CE F:CLR") + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_NAME("LIST . '") + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL) PORT_NAME("CLEAR") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1_PAD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_NAME("1 # LBL") +INPUT_PORTS_END + + + +/*************************************************************************** + + Machine Config + +***************************************************************************/ + +void ti74_state::update_battery_status(int state) +{ + // battery ok/low status is on int1 line! + m_maincpu->set_input_line(TMS7000_INT1_LINE, state ? ASSERT_LINE : CLEAR_LINE); +} + +void ti74_state::machine_reset() +{ + m_power = 1; + + update_battery_status(m_battery_inp->read()); +} + +void ti74_state::machine_start() +{ + if (m_cart->exists()) + m_maincpu->space(AS_PROGRAM).install_read_handler(0x4000, 0xbfff, read8_delegate(FUNC(generic_slot_device::read_rom),(generic_slot_device*)m_cart)); + + membank("sysbank")->configure_entries(0, 4, memregion("system")->base(), 0x2000); + membank("sysbank")->set_entry(0); + + // zerofill + m_key_select = 0; + m_power = 0; + + // register for savestates + save_item(NAME(m_key_select)); + save_item(NAME(m_power)); +} + +static MACHINE_CONFIG_START( ti74, ti74_state ) + + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", TMS70C46, XTAL_4MHz) + MCFG_CPU_PROGRAM_MAP(main_map) + MCFG_CPU_IO_MAP(main_io_map) + + MCFG_NVRAM_ADD_0FILL("sysram.ic3") + + /* 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_ti74) + MCFG_SCREEN_UPDATE_DEVICE("hd44780", hd44780_device, screen_update) + MCFG_SCREEN_PALETTE("palette") + + MCFG_PALETTE_ADD("palette", 3) + MCFG_PALETTE_INIT_OWNER(ti74_state, ti74) + + MCFG_HD44780_ADD("hd44780") // 270kHz + MCFG_HD44780_LCD_SIZE(2, 16) // 2*16 internal + MCFG_HD44780_PIXEL_UPDATE_CB(ti74_pixel_update) + + /* cartridge */ + MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "ti74_cart") + MCFG_GENERIC_EXTENSIONS("bin,rom,256") + MCFG_GENERIC_LOAD(ti74_state, ti74_cartridge) + + MCFG_SOFTWARE_LIST_ADD("cart_list", "ti74_cart") +MACHINE_CONFIG_END + +static MACHINE_CONFIG_START( ti95, ti74_state ) + + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", TMS70C46, XTAL_4MHz) + MCFG_CPU_PROGRAM_MAP(main_map) + MCFG_CPU_IO_MAP(main_io_map) + + MCFG_NVRAM_ADD_0FILL("sysram.ic3") + + /* video hardware */ + MCFG_SCREEN_ADD("screen", LCD) + MCFG_SCREEN_REFRESH_RATE(60) // arbitrary + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) + MCFG_SCREEN_SIZE(200, 20) + MCFG_SCREEN_VISIBLE_AREA(0, 200-1, 0, 20-1) + MCFG_DEFAULT_LAYOUT(layout_ti95) + MCFG_SCREEN_UPDATE_DEVICE("hd44780", hd44780_device, screen_update) + MCFG_SCREEN_PALETTE("palette") + + MCFG_PALETTE_ADD("palette", 3) + MCFG_PALETTE_INIT_OWNER(ti74_state, ti74) + + MCFG_HD44780_ADD("hd44780") + MCFG_HD44780_LCD_SIZE(2, 16) + MCFG_HD44780_PIXEL_UPDATE_CB(ti95_pixel_update) + + /* cartridge */ + MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "ti95_cart") + MCFG_GENERIC_EXTENSIONS("bin,rom,256") + MCFG_GENERIC_LOAD(ti74_state, ti74_cartridge) + + //MCFG_SOFTWARE_LIST_ADD("cart_list", "ti95_cart") +MACHINE_CONFIG_END + + + +/*************************************************************************** + + ROM Definitions + +***************************************************************************/ + +ROM_START( ti74 ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_LOAD( "c70009.ic2", 0xf000, 0x1000, CRC(55a2f7c0) SHA1(530e3de42f2e304c8f4805ad389f38a459ec4e33) ) // internal cpu rom + + ROM_REGION( 0x8000, "system", 0 ) + ROM_LOAD( "hn61256pc93.ic1", 0x0000, 0x8000, CRC(019aaa2f) SHA1(04a1e694a49d50602e45a7834846de4d9f7d587d) ) // system rom, banked +ROM_END + + +ROM_START( ti95 ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_LOAD( "c70011.ic2", 0xf000, 0x1000, CRC(b4d0a5c1) SHA1(3ff41946d014f72220a88803023b6a06d5086ce4) ) // internal cpu rom + + ROM_REGION( 0x8000, "system", 0 ) + ROM_LOAD( "hn61256pc95.ic1", 0x0000, 0x8000, CRC(c46d29ae) SHA1(c653f08590dbc28241a9f5a6c2541641bdb0208b) ) // system rom, banked +ROM_END + + +COMP( 1985, ti74, 0, 0, ti74, ti74, driver_device, 0, "Texas Instruments", "TI-74 BASICALC", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND_HW ) +COMP( 1986, ti95, 0, 0, ti95, ti95, driver_device, 0, "Texas Instruments", "TI-95 PROCALC", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND_HW ) |