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path: root/src/mame/drivers/ti99_4x.cpp
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Diffstat (limited to 'src/mame/drivers/ti99_4x.cpp')
-rw-r--r--src/mame/drivers/ti99_4x.cpp1188
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diff --git a/src/mame/drivers/ti99_4x.cpp b/src/mame/drivers/ti99_4x.cpp
deleted file mode 100644
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--- a/src/mame/drivers/ti99_4x.cpp
+++ /dev/null
@@ -1,1188 +0,0 @@
-// license:LGPL-2.1+
-// copyright-holders:Michael Zapf
-/****************************************************************************
-
- MESS Driver for TI-99/4 and TI-99/4A Home Computers.
- TI99/4 info:
-
- Similar to TI99/4a, except for the following:
- * tms9918/9928 has no bitmap mode
- * smaller, 40-key keyboard
- * many small differences in the contents of system ROMs
-
- Historical notes: TI made several last minute design changes.
- * TI99/4 prototypes had an extra port for an I/R joystick and keypad interface.
- * early TI99/4 prototypes were designed for a tms9985, not a tms9900.
-
- Emulation architecture:
- (also see datamux.c, peribox.c)
-
- +---- video (upper 8 bits of databus)
- |
- CPU |
- TMS9900 ==##== datamux --------+------ peribox ----------- [8] slots with peripheral devices
- | || (16->8) |
- | || +------ Console GROMs (0, 1, 2)
- | ##=== Console ROM |
- TMS9901 || +------ gromport (cartridge port)
- (I/O) ##=== 256 byte RAM |
- | || +------ sound
- | ##=== 32KiB RAM
- +---+--+ unofficial mod
- | | (16 bit)
- Cass joyport
-
- Raphael Nabet, 1999-2003.
- Rewritten by Michael Zapf
- February 2012: Rewritten as class
-
-*****************************************************************************/
-
-#include "emu.h"
-#include "cpu/tms9900/tms9900.h"
-
-#include "machine/tms9901.h"
-#include "imagedev/cassette.h"
-
-#include "bus/ti99/ti99defs.h"
-#include "bus/ti99/internal/datamux.h"
-#include "bus/ti99/gromport/gromport.h"
-#include "bus/ti99/internal/evpcconn.h"
-
-#include "bus/ti99/joyport/joyport.h"
-#include "bus/ti99/internal/ioport.h"
-#include "machine/ram.h"
-
-#include "softlist.h"
-#include "speaker.h"
-
-// Debugging
-#define LOG_WARN (1U<<1) // Warnings
-#define LOG_CONFIG (1U<<2) // Configuration
-#define LOG_READY (1U<<3)
-#define LOG_INTERRUPTS (1U<<4)
-#define LOG_CRU (1U<<5)
-#define LOG_CRUREAD (1U<<6)
-#define LOG_RESETLOAD (1U<<7)
-
-#define VERBOSE ( LOG_GENERAL | LOG_CONFIG | LOG_WARN | LOG_RESETLOAD )
-
-#include "logmacro.h"
-
-/*
- The console.
-*/
-class ti99_4x_state : public driver_device
-{
-public:
- ti99_4x_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_keyboard_column(0),
- m_check_alphalock(false),
- m_nready_combined(0),
- m_nready_prev(0),
- m_model(0),
- m_int1(0),
- m_int2(0),
- m_int12(0),
- m_cpu(*this, "maincpu"),
- m_tms9901(*this, TI_TMS9901_TAG),
- m_gromport(*this, TI99_GROMPORT_TAG),
- m_ioport(*this, TI99_IOPORT_TAG),
- m_joyport(*this, TI_JOYPORT_TAG),
- m_datamux(*this, TI99_DATAMUX_TAG),
- m_video(*this, TI_VDP_TAG),
- m_cassette1(*this, "cassette1"),
- m_cassette2(*this, "cassette2"),
- m_keyboard(*this, "COL%u", 0U),
- m_alpha(*this, "ALPHA"),
- m_alpha1(*this, "ALPHA1"),
- m_alphabug(*this, "ALPHABUG")
- { }
-
- // Configurations
- void ti99_4_common(machine_config &config);
- void ti99_4(machine_config &config);
- void ti99_4_50hz(machine_config &config);
- void ti99_4ev_60hz(machine_config &config);
- void ti99_4qi(machine_config &config);
- void ti99_4qi_60hz(machine_config &config);
- void ti99_4a_50hz(machine_config &config);
- void ti99_4a_60hz(machine_config &config);
- void ti99_4a(machine_config &config);
- void ti99_4_60hz(machine_config &config);
-
- // Lifecycle
- void driver_start() override;
- void driver_reset() override;
-
- // Interrupt triggers
- DECLARE_INPUT_CHANGED_MEMBER( load_interrupt );
-
-private:
- // Processor connections with the main board
- uint8_t cruread(offs_t offset);
- uint8_t interrupt_level();
- void cruwrite(offs_t offset, uint8_t data);
- void external_operation(offs_t offset, uint8_t data);
- DECLARE_WRITE_LINE_MEMBER( clock_out );
-
- // Connections from outside towards the CPU (callbacks)
- DECLARE_WRITE_LINE_MEMBER( console_ready_dmux );
- DECLARE_WRITE_LINE_MEMBER( console_ready_sound );
- DECLARE_WRITE_LINE_MEMBER( console_ready_pbox );
- DECLARE_WRITE_LINE_MEMBER( console_ready_cart );
- DECLARE_WRITE_LINE_MEMBER( console_ready_grom );
- DECLARE_WRITE_LINE_MEMBER( console_reset );
- DECLARE_WRITE_LINE_MEMBER( notconnected );
-
- // GROM clock
- DECLARE_WRITE_LINE_MEMBER( gromclk_in );
-
- // Connections with the system interface chip 9901
- DECLARE_WRITE_LINE_MEMBER( extint );
- DECLARE_WRITE_LINE_MEMBER( video_interrupt_in );
- DECLARE_WRITE_LINE_MEMBER( handset_interrupt_in );
-
- // Connections with the system interface TMS9901
- DECLARE_READ8_MEMBER(psi_input_4);
- DECLARE_READ8_MEMBER(psi_input_4a);
- DECLARE_WRITE_LINE_MEMBER(keyC0);
- DECLARE_WRITE_LINE_MEMBER(keyC1);
- DECLARE_WRITE_LINE_MEMBER(keyC2);
- DECLARE_WRITE_LINE_MEMBER(cs1_motor);
- DECLARE_WRITE_LINE_MEMBER(audio_gate);
- DECLARE_WRITE_LINE_MEMBER(cassette_output);
- DECLARE_WRITE_LINE_MEMBER(tms9901_interrupt);
- DECLARE_WRITE_LINE_MEMBER(handset_ack);
- DECLARE_WRITE_LINE_MEMBER(cs2_motor);
- DECLARE_WRITE_LINE_MEMBER(alphaW);
-
- // Used by EVPC
- DECLARE_WRITE_LINE_MEMBER( video_interrupt_evpc_in );
- void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
-
- void crumap(address_map &map);
- void memmap(address_map &map);
- void memmap_setaddress(address_map &map);
-
- void set_keyboard_column(int number, int data);
- int m_keyboard_column;
- int m_check_alphalock;
-
- // READY handling
- int m_nready_combined;
- int m_nready_prev;
- void console_ready_join(int id, int state);
-
- // Console type
- int m_model;
-
- // Latch for 9901 INT1, INT2, and INT12 lines
- int m_int1;
- int m_int2;
- int m_int12;
-
- // Connected devices
- required_device<tms9900_device> m_cpu;
- required_device<tms9901_device> m_tms9901;
- required_device<bus::ti99::gromport::gromport_device> m_gromport;
- required_device<bus::ti99::internal::ioport_device> m_ioport;
- required_device<bus::ti99::joyport::joyport_device> m_joyport;
- required_device<bus::ti99::internal::datamux_device> m_datamux;
- optional_device<tms9928a_device> m_video;
- required_device<cassette_image_device> m_cassette1;
- required_device<cassette_image_device> m_cassette2;
-
- optional_ioport_array<6> m_keyboard;
- optional_ioport m_alpha;
- optional_ioport m_alpha1;
- optional_ioport m_alphabug;
-
- // Timer for EVPC (provided by the TMS9929A, but EVPC replaces that VDP)
- emu_timer *m_gromclk_timer;
-};
-
-/*
- Console models.
-*/
-enum
-{
- MODEL_4,
- MODEL_4A,
- MODEL_4EV,
- MODEL_4QI
-};
-
-/*
- READY bits.
-*/
-enum
-{
- READY_GROM = 1,
- READY_DMUX = 2,
- READY_PBOX = 4,
- READY_SOUND = 8,
- READY_CART = 16
-};
-
-/*
- Memory map. All of the work is done in the datamux (see datamux.c).
-*/
-void ti99_4x_state::memmap(address_map &map)
-{
- map.global_mask(0xffff);
- map(0x0000, 0xffff).rw(TI99_DATAMUX_TAG, FUNC(bus::ti99::internal::datamux_device::read), FUNC(bus::ti99::internal::datamux_device::write));
-}
-
-void ti99_4x_state::memmap_setaddress(address_map &map)
-{
- map.global_mask(0xffff);
- map(0x0000, 0xffff).w(TI99_DATAMUX_TAG, FUNC(bus::ti99::internal::datamux_device::setaddress));
-}
-
-/*
- CRU map
- TMS9900 CRU address space is 12 bits wide, attached to A3-A14, A0-A2 must
- be 000 (other values for external commands like RSET, LREX, CKON...),
- A15 is used as CRUOUT
- The TMS9901 is incompletely decoded
- ---0 00xx xxcc ccc0
- causing 16 mirrors (0000, 0040, 0080, 00c0, ... , 03c0)
-*/
-void ti99_4x_state::crumap(address_map &map)
-{
- map(0x0000, 0x1fff).rw(FUNC(ti99_4x_state::cruread), FUNC(ti99_4x_state::cruwrite));
- map(0x0000, 0x003f).mirror(0x03c0).rw(m_tms9901, FUNC(tms9901_device::read), FUNC(tms9901_device::write));
-}
-
-
-/*****************************************************************************
- Input ports
- ****************************************************************************/
-
-static INPUT_PORTS_START(ti99_4)
- PORT_START("COL0") // col 0
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q QUIT") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR(UCHAR_MAMEKEY(F12))
- /* TI99/4 has a second space key which maps the same */
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(' ')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 )") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P \"") PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('"')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L =") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('=')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
-
- PORT_START("COL1") // col 1
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 @") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W BEGIN") PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR(UCHAR_MAMEKEY(F5))
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A AID") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR(UCHAR_MAMEKEY(F7))
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z BACK") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR(UCHAR_MAMEKEY(F9))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 (") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O +") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('+')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K /") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('/')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(", .") PORT_CODE(KEYCODE_STOP) PORT_CHAR(',') PORT_CHAR('.')
-
- PORT_START("COL2") // col 2
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E UP") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR(UCHAR_MAMEKEY(UP))
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S LEFT") PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR(UCHAR_MAMEKEY(LEFT))
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X DOWN") PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR(UCHAR_MAMEKEY(DOWN))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 *") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I -") PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('-')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J ^") PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('^')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M ;") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR(';')
- /* col 3 */
- PORT_START("COL3") // col 3
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R REDO") PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR(UCHAR_MAMEKEY(F8))
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D RIGHT") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C CLEAR") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR(UCHAR_MAMEKEY(F4))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 &") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U _") PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('_')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H <") PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('<')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N :") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR(':')
-
- PORT_START("COL4") // col 4
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T ERASE") PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR(UCHAR_MAMEKEY(F3))
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F DEL") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR(UCHAR_MAMEKEY(DEL))
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V PROC'D") PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR(UCHAR_MAMEKEY(F6))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 ^") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('\'')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y >") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('>')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G INS") PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR(UCHAR_MAMEKEY(F2))
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B ?") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('?')
-
-INPUT_PORTS_END
-
-/* TI99/4a: 48-key keyboard */
-static INPUT_PORTS_START(ti99_4a)
- PORT_START( "ALPHABUG" )
- PORT_CONFNAME( 0x01, 0x01, "Alpha Lock blocks joystick up" )
- PORT_CONFSETTING( 0x00, DEF_STR( Off ) )
- PORT_CONFSETTING( 0x01, DEF_STR( On ) )
-
- PORT_START( "LOADINT")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Load interrupt") PORT_CODE(KEYCODE_PRTSCR) PORT_CHANGED_MEMBER(DEVICE_SELF, ti99_4x_state, load_interrupt, 1)
-
- PORT_START("COL0") // col 0
- PORT_BIT(0x88, IP_ACTIVE_LOW, IPT_UNUSED)
- /* The original control key is located on the left, but we accept the right control key as well */
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL)
- /* TI99/4a has a second shift key which maps the same */
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- /* The original function key is located on the right, but we accept the left alt key as well */
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("FCTN") PORT_CODE(KEYCODE_RALT) PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_SHIFT_2)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("= + QUIT") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') PORT_CHAR(UCHAR_MAMEKEY(F12))
-
- PORT_START("COL1") // col 1
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(UCHAR_MAMEKEY(DOWN))
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR('~')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR(UCHAR_MAMEKEY(LEFT))
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_CHAR(UCHAR_MAMEKEY(F2))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 ( BACK") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') PORT_CHAR(UCHAR_MAMEKEY(F9))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR('\'')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
-
- PORT_START("COL2") // col 2
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR('`')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_CHAR(UCHAR_MAMEKEY(UP))
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 # ERASE") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_CHAR(UCHAR_MAMEKEY(F3))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 * REDO") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') PORT_CHAR(UCHAR_MAMEKEY(F8))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_CHAR('?')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
-
- PORT_START("COL3") // col 3
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR('[')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR('{')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 $ CLEAR") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_CHAR(UCHAR_MAMEKEY(F4))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 & AID") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_CHAR(UCHAR_MAMEKEY(F7))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_CHAR('_')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
-
- PORT_START("COL4") // col 4
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(']')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR('}')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 % BEGIN") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_CHAR(UCHAR_MAMEKEY(F5))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 ^ PROC'D") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_CHAR(UCHAR_MAMEKEY(F6))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
-
- PORT_START("COL5") // col 5
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR('\\')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR('|')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_CHAR(UCHAR_MAMEKEY(DEL))
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_CHAR(UCHAR_MAMEKEY(F10))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR('\"')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('-')
-
- PORT_START("ALPHA") /* one more port for Alpha line */
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Alpha Lock") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
-
- /* another version of Alpha Lock which is non-toggling; this is useful when we want to attach
- a real TI keyboard for input. For home computers, the Alpha Lock / Shift Lock was a physically
- locking key. */
- PORT_START("ALPHA1")
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Alpha Lock non-toggle") PORT_CODE(KEYCODE_RWIN)
-
-INPUT_PORTS_END
-
-
-/*****************************************************************************
- Components
-******************************************************************************/
-
-uint8_t ti99_4x_state::cruread(offs_t offset)
-{
- LOGMASKED(LOG_CRUREAD, "read access to CRU address %04x\n", offset << 1);
- uint8_t value = 0;
-
- // Let the gromport (not in the QI version) and the p-box behind the I/O port
- // decide whether they want to change the value at the CRU address
-
- if (m_model != MODEL_4QI) m_gromport->crureadz(offset<<1, &value);
- m_ioport->crureadz(offset<<1, &value);
-
- return value;
-}
-
-void ti99_4x_state::cruwrite(offs_t offset, uint8_t data)
-{
- LOGMASKED(LOG_CRU, "Write access to CRU address %04x\n", offset << 1);
- // The QI version does not propagate the CRU signals to the cartridge slot
- if (m_model != MODEL_4QI) m_gromport->cruwrite(offset<<1, data);
- m_ioport->cruwrite(offset<<1, data);
-}
-
-void ti99_4x_state::external_operation(offs_t offset, uint8_t data)
-{
- static char const *const extop[8] = { "inv1", "inv2", "IDLE", "RSET", "inv3", "CKON", "CKOF", "LREX" };
- // Some games (e.g. Slymoids) actually use IDLE for synchronization
- if (offset == IDLE_OP) return;
- else
- LOGMASKED(LOG_WARN, "External operation %s not implemented on TI-99 board\n", extop[offset]);
-}
-
-/***************************************************************************
- TI99/4x-specific tms9901 I/O handlers
-
- Bit Meaning
- 0 - (control) -
- 1 /INT1 (input) EXTINT
- 2 /INT2 (input) VDP
- 3 /INT3 (input) Keyboard = line / Joystick button
- 4 /INT4 (input) Keyboard Space line / Joystick left
- 5 /INT5 (input) Keyboard Enter line / Joystick right
- 6 /INT6 (input) Keyboard 0 line / Joystick down
- 7 31 /INT7 P15 (input) Keyboard Fctn line / Joystick up / AlphaLock
-
- 8 30 /INT8 P14 (input) Keyboard Shift line
- 9 29 /INT9 P13 (input) Keyboard Ctrl line
- 10 28 /INT10 P12 (input) Keyboard Z line
- 11 27 /INT11 P11 (input) Cassette audio
- 12 26 /INT12 P10 (input) 99/4: Handset, 99/4A: 1
- 13 25 /INT13 P9 (output) Cassette audio (1?)
- 14 24 /INT14 P8 (output) Audio Gate (1?)
- 15 23 /INT15 P7 (output) Motor CS2 (1?)
-
- 16 P0 (output) 99/4: Handset ack (1?)
- 17 P1 (input) 99/4: Handset (1?)
- 18 P2 (output) Key col 0 (1?)
- 19 P3 (output) Key col 1 (1?)
- 20 P4 (output) Key col 2 (1?)
- 21 P5 (output) AlphaLock select (1)
- 22 P6 (output) Motor CS1 (1?)
-
- enum { INT1, ... INT7_P15, INT8_P14, ..., P5, P6 }
-
- The hardware bug of the TI-99/4A keyboard: You have to release the
- AlphaLock key when using joysticks.
- The AlphaLock key was obviously added to the 99/4 matrix in a quite adhoc
- way; a separate 9901 line (P5) is used to deliver the 0 level to be routed
- through the switch. When AlphaLock is depressed, it connects the /INT7
- line via two 470 ohm resistors to P5. When the AlphaLock key is not
- scanned, P5 is 1, pulling up the /INT7 line. Moving the joystick lever up
- should pull it down, but due to the additional resistance in the long
- cable in the joystick, the sum resistance becomes too high to safely
- pull down the level, and the 9901 does not sense a 0 on its /INT7 input.
-
- Alpha
- P5 -----[470]-----/ +
- | Joy up
- /INT7--+--[470]-----+----[xxx]-----/ ---[280]--- 0 (if column=110 or 111)
- |
- +---[10k]--- 1
- pull-up
-
- The typical fix was to insert a diode at the Alphalock key.
-***************************************************************************/
-
-READ8_MEMBER( ti99_4x_state::psi_input_4)
-{
- switch (offset)
- {
- case tms9901_device::INT1:
- return (m_int1==CLEAR_LINE)? 1 : 0;
- case tms9901_device::INT2:
- return (m_int2==CLEAR_LINE)? 1 : 0;
- case tms9901_device::INT3:
- case tms9901_device::INT4:
- case tms9901_device::INT5:
- case tms9901_device::INT6:
- case tms9901_device::INT7_P15:
- // Keyboard ACTIVE_LOW, Joysticks ACTIVE_LOW
- if (m_keyboard_column >= 5)
- return BIT(m_joyport->read_port(), offset-tms9901_device::INT3);
- else
- return BIT(m_keyboard[m_keyboard_column]->read(), offset-tms9901_device::INT3);
- case tms9901_device::INT8_P14:
- case tms9901_device::INT9_P13:
- case tms9901_device::INT10_P12:
- if (m_keyboard_column >= 5) // no joystick lines after /INT7
- return 1;
- else
- return BIT(m_keyboard[m_keyboard_column]->read(), offset-tms9901_device::INT3);
- case tms9901_device::INT11_P11:
- return (m_cassette1->input() > 0);
- case tms9901_device::INT12_P10:
- return (m_int12==CLEAR_LINE)? 1 : 0;
- case tms9901_device::P1:
- return BIT(m_joyport->read_port(), 5); // 0x20
- default:
- return 1;
- }
-}
-
-READ8_MEMBER( ti99_4x_state::psi_input_4a )
-{
- int alphabias=0;
-
- switch (offset)
- {
- case tms9901_device::INT1:
- return (m_int1==CLEAR_LINE)? 1 : 0;
- case tms9901_device::INT2:
- return (m_int2==CLEAR_LINE)? 1 : 0;
- case tms9901_device::INT3:
- case tms9901_device::INT4:
- case tms9901_device::INT5:
- case tms9901_device::INT6:
- // Keyboard ACTIVE_LOW (s.o.)
- // Joysticks ACTIVE_LOW (handset.cpp)
- if (m_keyboard_column >= 6)
- return BIT(m_joyport->read_port(), offset-tms9901_device::INT3);
- else
- return BIT(m_keyboard[m_keyboard_column]->read(), offset-tms9901_device::INT3);
-
- case tms9901_device::INT7_P15:
- if (m_keyboard_column >= 6) // Joysticks
- {
- // If the Alpha Lock bug is not fixed
- if (m_alphabug->read()!=0)
- alphabias = ~(m_alpha->read() & m_alpha1->read());
-
- return BIT(m_joyport->read_port() | alphabias, offset-tms9901_device::INT3);
- }
- else
- {
- if (m_check_alphalock)
- {
- return BIT(m_alpha->read() & m_alpha1->read(), offset-tms9901_device::INT3);
- }
- else
- return BIT(m_keyboard[m_keyboard_column]->read(), offset-tms9901_device::INT3);
- }
-
- case tms9901_device::INT8_P14:
- case tms9901_device::INT9_P13:
- case tms9901_device::INT10_P12:
- if (m_keyboard_column >= 6) // no joystick lines after /INT7
- return 1;
- else
- return BIT(m_keyboard[m_keyboard_column]->read(), offset-tms9901_device::INT3);
- case tms9901_device::INT11_P11:
- // CS2 is write-only
- return (m_cassette1->input()>0);
- default:
- return 1;
- }
-}
-
-/*
- Handler for TMS9901 P0 pin (handset data acknowledge); only for 99/4
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::handset_ack )
-{
- // Write a value to the joyport. If there is a handset this will set its
- // ACK line.
- m_joyport->write_port(state==ASSERT_LINE? 0x01 : 0x00);
-}
-
-/*
- WRITE key column select (P2-P4), TI-99/4
-*/
-void ti99_4x_state::set_keyboard_column(int number, int data)
-{
- if (data != 0)
- m_keyboard_column |= 1 << number;
- else
- m_keyboard_column &= ~ (1 << number);
-
- if (m_keyboard_column >= (m_model==MODEL_4? 5:6))
- {
- m_joyport->write_port(m_keyboard_column - (m_model==MODEL_4? 5:6) + 1);
- }
-
- // TI-99/4: joystick 1 = column 5
- // joystick 2 = column 6
- // (only for the prototype versions; the released versions had no IR
- // handset and the board was already redesigned to use columns 6 and 7)
-
- // TI-99/4A: joystick 1 = column 6
- // joystick 2 = column 7
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::keyC0 )
-{
- set_keyboard_column(0, state);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::keyC1 )
-{
- set_keyboard_column(1, state);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::keyC2 )
-{
- set_keyboard_column(2, state);
-}
-
-/*
- Select alpha lock line - TI99/4a only (P5)
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::alphaW )
-{
- m_check_alphalock = (state==0);
-}
-
-/*
- Control CS1 tape unit motor (P6)
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::cs1_motor )
-{
- m_cassette1->change_state(state==ASSERT_LINE? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED,CASSETTE_MASK_MOTOR);
-}
-
-/*
- Control CS2 tape unit motor (P7)
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::cs2_motor )
-{
- m_cassette2->change_state(state==ASSERT_LINE? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED,CASSETTE_MASK_MOTOR);
-}
-
-/*
- Audio gate (P8)
- Set to 1 before using tape: this enables the mixing of tape input sound
- with computer sound.
- We do not really need to emulate this as the tape recorder generates sound
- on its own.
- TODO: Emulate a pop sound when turning on/off the audio gate; there are
- some few programs that generate a sound with this feature
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::audio_gate )
-{
-}
-
-/*
- Tape output (P9)
- I think polarity is correct, but don't take my word for it.
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::cassette_output )
-{
- m_cassette1->output(state==ASSERT_LINE? +1 : -1);
- m_cassette2->output(state==ASSERT_LINE? +1 : -1);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::tms9901_interrupt )
-{
- m_cpu->set_input_line(INT_9900_INTREQ, state);
-}
-
-uint8_t ti99_4x_state::interrupt_level()
-{
- // The interrupt level must be fetched from the 9901;
- // on the TI-99 systems these IC lines are not used; the input lines
- // at the CPU are hardwired to level 1.
- return 1;
-}
-
-/*
- Clock line from the CPU. Used to control wait state generation.
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::clock_out )
-{
- m_tms9901->phi_line(state);
- m_datamux->clock_in(state);
- m_ioport->clock_in(state);
-}
-
-/*
- GROMCLK from VDP, propagating to datamux
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::gromclk_in )
-{
- m_datamux->gromclk_in(state);
-}
-
-/*
- Used by the EVPC
-*/
-void ti99_4x_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
-{
- // Pulse it
- if (m_datamux != nullptr)
- {
- gromclk_in(ASSERT_LINE);
- gromclk_in(CLEAR_LINE);
- }
-}
-
-/*****************************************************************************/
-
-WRITE_LINE_MEMBER( ti99_4x_state::video_interrupt_evpc_in )
-{
- LOGMASKED(LOG_INTERRUPTS, "VDP INT2 from EVPC on tms9901, level=%d\n", state);
- m_int2 = (line_state)state;
- m_tms9901->set_int_line(2, state);
-}
-
-/*
- set the state of TMS9901's INT2 (called by the tms9928 core)
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::video_interrupt_in )
-{
- LOGMASKED(LOG_INTERRUPTS, "VDP %s /INT2 on TMS9901\n", (state==ASSERT_LINE)? "asserts" : "clears");
- m_int2 = (line_state)state;
- m_tms9901->set_int_line(2, state);
- // Pulse for the handset
- if (m_model == MODEL_4) m_joyport->pulse_clock();
-}
-
-/*
- set the state of TMS9901's INT12 (called by the handset prototype of TI-99/4)
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::handset_interrupt_in)
-{
- LOGMASKED(LOG_INTERRUPTS, "joyport INT12 on tms9901, level=%d\n", state);
- m_int12 = (line_state)state;
- m_tms9901->set_int_line(12, state);
-}
-
-/*
- One of the common hardware mods was to add a switch to trigger a LOAD
- interrupt
-*/
-INPUT_CHANGED_MEMBER( ti99_4x_state::load_interrupt )
-{
- LOGMASKED(LOG_RESETLOAD, "LOAD interrupt, level=%d\n", newval);
- m_cpu->set_input_line(INT_9900_LOAD, (newval==0)? ASSERT_LINE : CLEAR_LINE);
-}
-
-/***********************************************************
- Links to external devices
-***********************************************************/
-
-/*
- We combine the incoming READY signals and propagate them to the CPU.
- An alternative would be to let the CPU get the READY state, but this would
- be a much higher overhead, as this happens in each clock tick.
-*/
-void ti99_4x_state::console_ready_join(int id, int state)
-{
- if (state==CLEAR_LINE)
- m_nready_combined |= id;
- else
- m_nready_combined &= ~id;
-
- if (m_nready_prev != m_nready_combined)
- LOGMASKED(LOG_READY, "READY bits = %04x\n", ~m_nready_combined);
-
- m_nready_prev = m_nready_combined;
- m_cpu->set_ready(m_nready_combined==0);
-}
-
-/*
- Connections to the READY line. This might look a bit ugly; we need an
- implementation of a "Wired AND" device.
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::console_ready_grom )
-{
- LOGMASKED(LOG_READY, "GROM ready = %d\n", state);
- console_ready_join(READY_GROM, state);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::console_ready_dmux )
-{
- console_ready_join(READY_DMUX, state);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::console_ready_pbox )
-{
- console_ready_join(READY_PBOX, state);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::console_ready_sound )
-{
- console_ready_join(READY_SOUND, state);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::console_ready_cart )
-{
- console_ready_join(READY_CART, state);
-}
-
-/*
- The RESET line leading to a reset of the CPU. This is asserted when a
- cartridge is plugged in.
-*/
-WRITE_LINE_MEMBER( ti99_4x_state::console_reset )
-{
- if (machine().phase() != machine_phase::INIT)
- {
- LOGMASKED(LOG_RESETLOAD, "Console reset line = %d\n", state);
- m_cpu->set_input_line(INT_9900_RESET, state);
- m_video->reset_line(state);
- m_ioport->reset_in(state);
- }
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::extint )
-{
- LOGMASKED(LOG_INTERRUPTS, "EXTINT level = %02x\n", state);
- m_int1 = (line_state)state;
- m_tms9901->set_int_line(1, state);
-}
-
-WRITE_LINE_MEMBER( ti99_4x_state::notconnected )
-{
- LOGMASKED(LOG_INTERRUPTS, "Setting a not connected line ... ignored\n");
-}
-
-/******************************************************************************
- Machine definitions
-******************************************************************************/
-
-void ti99_4x_state::driver_start()
-{
- m_nready_combined = 0;
- // Removing the TMS9928a requires to add a replacement for the GROMCLK.
- // In the real hardware this is a circuit (REPL99x) that fits into the VDP socket
- if (m_model == MODEL_4EV)
- m_gromclk_timer = timer_alloc(0);
-
- save_item(NAME(m_keyboard_column));
- save_item(NAME(m_check_alphalock));
- save_item(NAME(m_nready_combined));
- save_item(NAME(m_nready_prev));
- save_item(NAME(m_model));
- save_item(NAME(m_int1));
- save_item(NAME(m_int2));
- save_item(NAME(m_int12));
-}
-
-void ti99_4x_state::driver_reset()
-{
- m_cpu->set_ready(ASSERT_LINE);
- m_cpu->set_hold(CLEAR_LINE);
- m_int1 = CLEAR_LINE;
- m_int2 = CLEAR_LINE;
- m_int12 = CLEAR_LINE;
- if (m_model == MODEL_4EV)
- m_gromclk_timer->adjust(attotime::zero, 0, attotime::from_hz(XTAL(10'738'635)/24));
-}
-
-/**********************************************************
- Common configuration
-**********************************************************/
-void ti99_4x_state::ti99_4_common(machine_config& config)
-{
- // CPU
- TMS9900(config, m_cpu, 3000000);
- m_cpu->set_addrmap(AS_PROGRAM, &ti99_4x_state::memmap);
- m_cpu->set_addrmap(AS_IO, &ti99_4x_state::crumap);
- m_cpu->set_addrmap(tms99xx_device::AS_SETADDRESS, &ti99_4x_state::memmap_setaddress);
- m_cpu->extop_cb().set(FUNC(ti99_4x_state::external_operation));
- m_cpu->intlevel_cb().set(FUNC(ti99_4x_state::interrupt_level));
- m_cpu->clkout_cb().set(FUNC(ti99_4x_state::clock_out));
-
- // Programmable system interface (driven by CLKOUT)
- TMS9901(config, m_tms9901, 0);
- m_tms9901->p_out_cb(2).set(FUNC(ti99_4x_state::keyC0));
- m_tms9901->p_out_cb(3).set(FUNC(ti99_4x_state::keyC1));
- m_tms9901->p_out_cb(4).set(FUNC(ti99_4x_state::keyC2));
- m_tms9901->p_out_cb(6).set(FUNC(ti99_4x_state::cs1_motor));
- m_tms9901->p_out_cb(7).set(FUNC(ti99_4x_state::cs2_motor));
- m_tms9901->p_out_cb(8).set(FUNC(ti99_4x_state::audio_gate));
- m_tms9901->p_out_cb(9).set(FUNC(ti99_4x_state::cassette_output));
- m_tms9901->intreq_cb().set(FUNC(ti99_4x_state::tms9901_interrupt));
-
- // Databus multiplexer
- TI99_DATAMUX(config, m_datamux, 0).ready_cb().set(FUNC(ti99_4x_state::console_ready_dmux));
-
- // Cartridge port (aka GROMport)
- TI99_GROMPORT(config, m_gromport, 0, ti99_gromport_options, "single");
- m_gromport->ready_cb().set(FUNC(ti99_4x_state::console_ready_cart));
- m_gromport->reset_cb().set(FUNC(ti99_4x_state::console_reset));
-
- // Scratch pad RAM 256 bytes
- RAM(config, TI99_PADRAM_TAG).set_default_size("256").set_default_value(0);
-
- // Optional RAM expansion
- RAM(config, TI99_EXPRAM_TAG).set_default_size("32K").set_default_value(0);
-
- // Software list
- SOFTWARE_LIST(config, "cart_list_ti99").set_original("ti99_cart");
-
- // Cassette drives. Second drive is record-only.
- SPEAKER(config, "cass_out").front_center();
- CASSETTE(config, "cassette1", 0).add_route(ALL_OUTPUTS, "cass_out", 0.25);
- CASSETTE(config, "cassette2", 0);
-
- // GROM devices
- TMC0430(config, TI99_GROM0_TAG, TI99_CONSOLEGROM, 0x0000, 0).ready_cb().set(FUNC(ti99_4x_state::console_ready_grom));
- TMC0430(config, TI99_GROM1_TAG, TI99_CONSOLEGROM, 0x2000, 1).ready_cb().set(FUNC(ti99_4x_state::console_ready_grom));
- TMC0430(config, TI99_GROM2_TAG, TI99_CONSOLEGROM, 0x4000, 2).ready_cb().set(FUNC(ti99_4x_state::console_ready_grom));
-}
-
-/**********************************************************************
- TI-99/4 - predecessor of the more popular TI-99/4A
-***********************************************************************/
-
-void ti99_4x_state::ti99_4(machine_config& config)
-{
- // Common configuration
- ti99_4_common(config);
- m_model = MODEL_4;
-
- // Main board
- // Add handset interrupt to 9901
- m_tms9901->p_out_cb(0).set(FUNC(ti99_4x_state::handset_ack));
- m_tms9901->read_cb().set(FUNC(ti99_4x_state::psi_input_4)); // use a separate one for 99/4
-
- // Input/output port: normal config
- TI99_IOPORT(config, m_ioport, 0, ti99_ioport_options_plain, nullptr);
- m_ioport->extint_cb().set(FUNC(ti99_4x_state::extint));
- m_ioport->ready_cb().set(TI99_DATAMUX_TAG, FUNC(bus::ti99::internal::datamux_device::ready_line));
-
- // Sound hardware (not in EVPC variant)
- SPEAKER(config, "sound_out").front_center();
- sn94624_device& soundgen(SN94624(config, TI_SOUNDCHIP_TAG, 3579545/8));
- soundgen.ready_cb().set(FUNC(ti99_4x_state::console_ready_sound));
- soundgen.add_route(ALL_OUTPUTS, "sound_out", 0.75);
-
- // Joystick port. We can connect a joyport mouse or a handset (99/4-specific).
- TI99_JOYPORT(config, m_joyport, 0, ti99_joyport_options_994, "twinjoy");
- m_joyport->int_cb().set(FUNC(ti99_4x_state::handset_interrupt_in));
-}
-
-/*
- US version: 60 Hz, NTSC
-*/
-void ti99_4x_state::ti99_4_60hz(machine_config &config)
-{
- ti99_4(config);
- TMS9918(config, m_video, XTAL(10'738'635));
- m_video->set_vram_size(0x4000);
- m_video->int_callback().set(FUNC(ti99_4x_state::video_interrupt_in));
- m_video->gromclk_callback().set(FUNC(ti99_4x_state::gromclk_in));
- m_video->set_screen(TI_SCREEN_TAG);
-
- SCREEN(config, TI_SCREEN_TAG, SCREEN_TYPE_RASTER);
-}
-
-/*
- European version: 50 Hz, PAL
-*/
-void ti99_4x_state::ti99_4_50hz(machine_config &config)
-{
- ti99_4(config);
- TMS9929(config, m_video, XTAL(10'738'635));
- m_video->set_vram_size(0x4000);
- m_video->int_callback().set(FUNC(ti99_4x_state::video_interrupt_in));
- m_video->gromclk_callback().set(FUNC(ti99_4x_state::gromclk_in));
- m_video->set_screen(TI_SCREEN_TAG);
-
- SCREEN(config, TI_SCREEN_TAG, SCREEN_TYPE_RASTER);
-}
-
-/**********************************************************************
- TI-99/4A - replaced the 99/4 and became the standard TI-99 console
-***********************************************************************/
-
-void ti99_4x_state::ti99_4a(machine_config& config)
-{
- // Common configuration
- ti99_4_common(config);
- m_model = MODEL_4A;
-
- // Main board
- // Add Alphalock to 9901
- m_tms9901->p_out_cb(5).set(FUNC(ti99_4x_state::alphaW));
- m_tms9901->read_cb().set(FUNC(ti99_4x_state::psi_input_4a));
-
- // Input/output port: Normal config
- TI99_IOPORT(config, m_ioport, 0, ti99_ioport_options_plain, nullptr);
- m_ioport->extint_cb().set(FUNC(ti99_4x_state::extint));
- m_ioport->ready_cb().set(TI99_DATAMUX_TAG, FUNC(bus::ti99::internal::datamux_device::ready_line));
-
- // Sound hardware (not in EVPC variant)
- SPEAKER(config, "sound_out").front_center();
- sn94624_device& soundgen(SN94624(config, TI_SOUNDCHIP_TAG, 3579545/8));
- soundgen.ready_cb().set(FUNC(ti99_4x_state::console_ready_sound));
- soundgen.add_route(ALL_OUTPUTS, "sound_out", 0.75);
-
- // Joystick port
- TI99_JOYPORT(config, m_joyport, 0, ti99_joyport_options_mouse, "twinjoy");
-}
-
-/*
- US version: 60 Hz, NTSC
-*/
-void ti99_4x_state::ti99_4a_60hz(machine_config &config)
-{
- ti99_4a(config);
- TMS9918A(config, m_video, XTAL(10'738'635));
- m_video->set_vram_size(0x4000);
- m_video->int_callback().set(FUNC(ti99_4x_state::video_interrupt_in));
- m_video->gromclk_callback().set(FUNC(ti99_4x_state::gromclk_in));
- m_video->set_screen(TI_SCREEN_TAG);
-
- SCREEN(config, TI_SCREEN_TAG, SCREEN_TYPE_RASTER);
-}
-
-/*
- European version: 50 Hz, PAL
-*/
-void ti99_4x_state::ti99_4a_50hz(machine_config &config)
-{
- ti99_4a(config);
- TMS9929A(config, m_video, XTAL(10'738'635));
- m_video->set_vram_size(0x4000);
- m_video->int_callback().set(FUNC(ti99_4x_state::video_interrupt_in));
- m_video->gromclk_callback().set(FUNC(ti99_4x_state::gromclk_in));
- m_video->set_screen(TI_SCREEN_TAG);
-
- SCREEN(config, TI_SCREEN_TAG, SCREEN_TYPE_RASTER);
-}
-
-/************************************************************************
- TI-99/4QI - the final version of the TI-99/4A
- This was a last modification of the console. One purpose was to lower
- production costs by a redesigned board layout. The other was that TI
- removed the ROM search for cartridges so that only cartridges with GROMs
- could be started, effectively kicking out all third-party cartridges like
- those from Atarisoft.
-*************************************************************************/
-
-/*
- US version: 60 Hz, NTSC
- There were no European versions.
-*/
-void ti99_4x_state::ti99_4qi_60hz(machine_config &config)
-{
- ti99_4a(config);
- m_model = MODEL_4QI;
-
- TMS9918A(config, m_video, XTAL(10'738'635));
- m_video->set_vram_size(0x4000);
- m_video->int_callback().set(FUNC(ti99_4x_state::video_interrupt_in));
- m_video->gromclk_callback().set(FUNC(ti99_4x_state::gromclk_in));
- m_video->set_screen(TI_SCREEN_TAG);
-
- SCREEN(config, TI_SCREEN_TAG, SCREEN_TYPE_RASTER);
-}
-
-/************************************************************************
- TI-99/4A with 80-column support. Actually a separate expansion card (EVPC),
- replacing the console video processor.
-
- Note that the sound chip is also moved to this card, because the SGCPU,
- which is intended to use the EVPC, does not have an own sound chip.
-*************************************************************************/
-
-void ti99_4x_state::ti99_4ev_60hz(machine_config& config)
-{
- // Common configuration
- ti99_4_common(config);
- m_model = MODEL_4EV;
-
- // Main board
- // Add Alphalock
- m_tms9901->p_out_cb(5).set(FUNC(ti99_4x_state::alphaW));
- m_tms9901->read_cb().set(FUNC(ti99_4x_state::psi_input_4a));
-
- // EVPC connector
- // This is needed for delivering the video interrupt from the
- // EVPC expansion card into the console, after the video processor has been removed
- TI99_EVPCCONN(config, TI99_EVPC_CONN_TAG, 0).vdpint_cb().set(FUNC(ti99_4x_state::video_interrupt_evpc_in));
-
- // Input/output port: Configure for EVPC
- TI99_IOPORT(config, m_ioport, 0, ti99_ioport_options_evpc, "peb");
- m_ioport->extint_cb().set(FUNC(ti99_4x_state::extint));
- m_ioport->ready_cb().set(TI99_DATAMUX_TAG, FUNC(bus::ti99::internal::datamux_device::ready_line));
-
- // Joystick port
- // No joyport mouse, since we have a bus mouse with the EVPC
- TI99_JOYPORT(config, m_joyport, 0, ti99_joyport_options_plain, "twinjoy");
-}
-
-/*****************************************************************************
- ROM loading
- Note that we use the same ROMset for 50Hz and 60Hz versions.
- ROMs for peripheral equipment have been moved to the respective files.
-******************************************************************************/
-#define rom_ti99_4e rom_ti99_4
-#define rom_ti99_4ae rom_ti99_4a
-
-ROM_START(ti99_4)
- // CPU memory space
- // ROM files do not have a CRC16 at their end
- ROM_REGION16_BE(0x2000, TI99_CONSOLEROM, 0)
- ROM_LOAD16_BYTE("994_rom_hb.u610", 0x0000, 0x1000, CRC(6fcf4b15) SHA1(d085213c64701d429ae535f9a4ac8a50427a8343)) /* CPU ROMs high */
- ROM_LOAD16_BYTE("994_rom_lb.u611", 0x0001, 0x1000, CRC(491c21d1) SHA1(7741ae9294c51a44a78033d1b77c01568a6bbfb9)) /* CPU ROMs low */
-
- // GROM memory space
- // GROM files do not have a CRC16 at their end
- ROM_REGION(0x6000, TI99_CONSOLEGROM, 0)
- ROM_LOAD("994_grom0.u500", 0x0000, 0x1800, CRC(aa757e13) SHA1(4658d3d01c0131c283a30cebd12e76754d41a84a)) /* system GROM 0 */
- ROM_LOAD("994_grom1.u501", 0x2000, 0x1800, CRC(c863e460) SHA1(6d849a76011273a069a98ed0c3feaf13831c942f)) /* system GROM 1 */
- ROM_LOAD("994_grom2.u502", 0x4000, 0x1800, CRC(b0eda548) SHA1(725e3f26f8c819f356e4bb405b4102b5ae1e0e70)) /* system GROM 2 */
-ROM_END
-
-ROM_START(ti99_4a)
- // CPU memory space
- // ROM files have valid CRC16 as last word
- ROM_REGION16_BE(0x2000, TI99_CONSOLEROM, 0)
- ROM_LOAD16_BYTE("994a_rom_hb.u610", 0x0000, 0x1000, CRC(ee859c5f) SHA1(a45245707c3dccea902b718554a882d214a82504)) /* CPU ROMs high */
- ROM_LOAD16_BYTE("994a_rom_lb.u611", 0x0001, 0x1000, CRC(37859301) SHA1(f4e774fd5913b387a763f1b8de5524c54b255434)) /* CPU ROMs low */
-
- // GROM memory space
- // GROM files have valid CRC16 as last word
- ROM_REGION(0x6000, TI99_CONSOLEGROM, 0)
- ROM_LOAD("994a_grom0.u500", 0x0000, 0x1800, CRC(2445a5e8) SHA1(ea15d8b0ac52112dc0d5f4ab9a79ac8ca1cc1bbc)) /* system GROM 0 */
- ROM_LOAD("994a_grom1.u501", 0x2000, 0x1800, CRC(b8f367ab) SHA1(3ecead4b83ec525084c70b6123d4053f8a80e1f7)) /* system GROM 1 */
- ROM_LOAD("994a_grom2.u502", 0x4000, 0x1800, CRC(e0bb5341) SHA1(e255f0d65d69b927cecb8fcfac7a4c17d585ea96)) /* system GROM 2 */
-ROM_END
-
-ROM_START(ti99_4qi)
- // CPU memory space
- // ROM files are the same as for TI-99/4A, but located in sockets u3 and u5
- ROM_REGION16_BE(0x2000, TI99_CONSOLEROM, 0)
- ROM_LOAD16_BYTE("994a_rom_hb.u610", 0x0000, 0x1000, CRC(ee859c5f) SHA1(a45245707c3dccea902b718554a882d214a82504)) /* CPU ROMs high */
- ROM_LOAD16_BYTE("994a_rom_lb.u611", 0x0001, 0x1000, CRC(37859301) SHA1(f4e774fd5913b387a763f1b8de5524c54b255434)) /* CPU ROMs low */
-
- // GROM memory space
- // GROM files have valid CRC16 as last word
- // GROM1 and GROM2 are the same as for TI-99/4A, located in u30 and u31
- ROM_REGION(0x6000, TI99_CONSOLEGROM, 0)
- ROM_LOAD("994qi_grom0.u29", 0x0000, 0x1800, CRC(8b07772d) SHA1(95dcf5b7350ade65297eadd2d680c27561cc975c)) /* system GROM 0 */
- ROM_LOAD("994a_grom1.u501", 0x2000, 0x1800, CRC(b8f367ab) SHA1(3ecead4b83ec525084c70b6123d4053f8a80e1f7)) /* system GROM 1 */
- ROM_LOAD("994a_grom2.u502", 0x4000, 0x1800, CRC(e0bb5341) SHA1(e255f0d65d69b927cecb8fcfac7a4c17d585ea96)) /* system GROM 2 */
-ROM_END
-
-ROM_START(ti99_4ev)
- // CPU memory space
- // ROM files have valid CRC16 as last word
- // ROM files are the same as for TI-99/4A
- ROM_REGION16_BE(0x2000, TI99_CONSOLEROM, 0)
- ROM_LOAD16_BYTE("994a_rom_hb.u610", 0x0000, 0x1000, CRC(ee859c5f) SHA1(a45245707c3dccea902b718554a882d214a82504)) /* CPU ROMs high */
- ROM_LOAD16_BYTE("994a_rom_lb.u611", 0x0001, 0x1000, CRC(37859301) SHA1(f4e774fd5913b387a763f1b8de5524c54b255434)) /* CPU ROMs low */
-
- // GROM memory space
- // GROM files have valid CRC16 as last word
- // GROM1 has been patched to support the EVPC, but the CRC16 was not updated, being invalid now
- ROM_REGION(0x6000, TI99_CONSOLEGROM, 0)
- ROM_LOAD("994a_grom0.u500", 0x0000, 0x1800, CRC(2445a5e8) SHA1(ea15d8b0ac52112dc0d5f4ab9a79ac8ca1cc1bbc)) /* system GROM 0 */
- ROM_LOAD("994ev_grom1.u501", 0x2000, 0x1800, CRC(6885326d) SHA1(1a98de5ee886dce705de5cce11034a7be31aceac)) /* system GROM 1 */
- ROM_LOAD("994a_grom2.u502", 0x4000, 0x1800, CRC(e0bb5341) SHA1(e255f0d65d69b927cecb8fcfac7a4c17d585ea96)) /* system GROM 2 */
-ROM_END
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1979, ti99_4, 0, 0, ti99_4_60hz, ti99_4, ti99_4x_state, empty_init, "Texas Instruments", "TI-99/4 Home Computer (US)", MACHINE_SUPPORTS_SAVE)
-COMP( 1980, ti99_4e, ti99_4, 0, ti99_4_50hz, ti99_4, ti99_4x_state, empty_init, "Texas Instruments", "TI-99/4 Home Computer (Europe)", MACHINE_SUPPORTS_SAVE)
-COMP( 1981, ti99_4a, 0, 0, ti99_4a_60hz, ti99_4a, ti99_4x_state, empty_init, "Texas Instruments", "TI-99/4A Home Computer (US)", MACHINE_SUPPORTS_SAVE)
-COMP( 1981, ti99_4ae, ti99_4a, 0, ti99_4a_50hz, ti99_4a, ti99_4x_state, empty_init, "Texas Instruments", "TI-99/4A Home Computer (Europe)", MACHINE_SUPPORTS_SAVE)
-COMP( 1983, ti99_4qi, ti99_4a, 0, ti99_4qi_60hz, ti99_4a, ti99_4x_state, empty_init, "Texas Instruments", "TI-99/4QI Home Computer (US)", MACHINE_SUPPORTS_SAVE)
-COMP( 1994, ti99_4ev, ti99_4a, 0, ti99_4ev_60hz, ti99_4a, ti99_4x_state, empty_init, "Texas Instruments", "TI-99/4A Home Computer with EVPC", MACHINE_SUPPORTS_SAVE)