diff options
Diffstat (limited to 'src/mame/drivers/didact.cpp')
-rw-r--r-- | src/mame/drivers/didact.cpp | 170 |
1 files changed, 85 insertions, 85 deletions
diff --git a/src/mame/drivers/didact.cpp b/src/mame/drivers/didact.cpp index 4697cbc6fdd..e5f74d458de 100644 --- a/src/mame/drivers/didact.cpp +++ b/src/mame/drivers/didact.cpp @@ -41,7 +41,7 @@ * |____________________________________________________________________________________________________________| |______ | _|||_ |___________________________________| * * _____________________________________________________________________________________________ ___________________________________________________________________________ - * |The Didact Mikrodator 6802 CPU board by Lars Björklund 1983 ( ) | |The Didact Mikrodator 6802 TB16 board by Lars Björklund 1983 | + * |The Didact Mikrodator 6802 CPU board by Lars Bjorklund 1983 ( ) | |The Didact Mikrodator 6802 TB16 board by Lars Bj??rklund 1983 | * | +----= | | +-|||||||-+ ______ | * | | = | | CA2 Tx |terminal | | () | | * | | = | | PA7 Rx +---------+ +----------+ C1nF,<=R18k| | | @@ -77,8 +77,8 @@ * * History of Didact *------------------ - * Didact Läromedelsproduktion was started in Linköping in Sweden by Anders Andersson, Arne Kullbjer and - * Lars Björklund. They constructed a series of microcomputers for educational purposes such as "Mikrodator 6802", + * Didact Laromedelsproduktion was started in Linkoping in Sweden by Anders Andersson, Arne Kullbjer and + * Lars Bjorklund. They constructed a series of microcomputers for educational purposes such as "Mikrodator 6802", * Esselte 100 and the Candela computer for the swedish schools to educate the students in assembly programming * and BASIC for electro mechanical applications such as stepper motors, simple process control, buttons * and LED:s. Didact designs were marketed by Esselte Studium to the swedish schools. The Candela computer @@ -92,7 +92,7 @@ * http://elektronikforumet.com/forum/download/file.php?id=63988&mode=view * http://elektronikforumet.com/forum/viewtopic.php?f=2&t=79576&start=150#p1203915 * - * TODO: + * TODO: * Didact designs: mp68a, md6802, md6802v3, Esselte 100, Candela * -------------------------------------------------------------------------- * - Add PCB layouts OK OK @@ -110,7 +110,7 @@ #include "emu.h" #include "cpu/m6800/m6800.h" #include "machine/6821pia.h" // For all boards -#include "video/dm9368.h" // For the mp68a +#include "video/dm9368.h" // For the mp68a #include "machine/74145.h" // For the md6802 // Generated artwork includes #include "mp68a.lh" @@ -132,9 +132,9 @@ /* Didact base class */ class didact_state : public driver_device { - public: + public: didact_state(const machine_config &mconfig, device_type type, const char * tag) - : driver_device(mconfig, type, tag) + : driver_device(mconfig, type, tag) ,m_io_line0(*this, "LINE0") ,m_io_line1(*this, "LINE1") ,m_io_line2(*this, "LINE2") @@ -166,13 +166,13 @@ class didact_state : public driver_device /* Esselte 100 driver class */ class e100_state : public didact_state { - public: + public: e100_state(const machine_config &mconfig, device_type type, const char * tag) - : didact_state(mconfig, type, tag), + : didact_state(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_pia1(*this, "pia1"), m_pia2(*this, "pia2") - { } + { } required_device<m6802_cpu_device> m_maincpu; virtual void machine_reset() override { m_maincpu->reset(); LOG(("--->%s()\n", FUNCNAME)); }; protected: @@ -183,15 +183,15 @@ protected: /* Mikrodator 6802 driver class */ class md6802_state : public didact_state { - public: + public: md6802_state(const machine_config &mconfig, device_type type, const char * tag) - : didact_state(mconfig, type, tag) + : didact_state(mconfig, type, tag) ,m_maincpu(*this, "maincpu") ,m_tb16_74145(*this, "tb16_74145") ,m_segments(0) ,m_pia1(*this, "pia1") ,m_pia2(*this, "pia2") - { } + { } required_device<m6802_cpu_device> m_maincpu; required_device<ttl74145_device> m_tb16_74145; UINT8 m_segments; @@ -228,7 +228,7 @@ READ8_MEMBER( md6802_state::pia2_kbA_r ) LOG(("%s()-->%02x %02x %02x %02x modified by %02x displaying %02x\n", FUNCNAME, m_line0, m_line1, m_line2, m_line3, m_shift, ls145)); #endif - // Mask out those rows that has a button pressed + // Mask out those rows that has a button pressed pa &= ~(((~m_line0 & ls145 ) != 0) ? 1 : 0); pa &= ~(((~m_line1 & ls145 ) != 0) ? 2 : 0); pa &= ~(((~m_line2 & ls145 ) != 0) ? 4 : 0); @@ -236,7 +236,7 @@ READ8_MEMBER( md6802_state::pia2_kbA_r ) if (m_shift) { - pa &= 0x7f; // Clear shift bit if button being pressed (PA7) to ground (internal pullup) + pa &= 0x7f; // Clear shift bit if button being pressed (PA7) to ground (internal pullup) LOG( ("SHIFT is pressed\n") ); } @@ -253,10 +253,10 @@ WRITE8_MEMBER( md6802_state::pia2_kbA_w ) { UINT8 digit_nbr; -// LOG(("--->%s(%02x)\n", FUNCNAME, data)); +// LOG(("--->%s(%02x)\n", FUNCNAME, data)); digit_nbr = (data >> 4) & 0x07; - m_tb16_74145->write( digit_nbr ); + m_tb16_74145->write( digit_nbr ); if (digit_nbr < 6) { output().set_digit_value( digit_nbr, m_segments); @@ -266,15 +266,15 @@ WRITE8_MEMBER( md6802_state::pia2_kbA_w ) /* PIA 2 Port B is all outputs to drive the display so it is very unlikelly that this function is called */ READ8_MEMBER( md6802_state::pia2_kbB_r ) { - LOG( ("Warning, trying to read from Port B designated to drive the display, please check why\n") ); - logerror("Warning, trying to read from Port B designated to drive the display, please check why\n"); + LOG( ("Warning, trying to read from Port B designated to drive the display, please check why\n") ); + logerror("Warning, trying to read from Port B designated to drive the display, please check why\n"); return 0; } /* Port B is fully used ouputting the segment pattern to the display */ WRITE8_MEMBER( md6802_state::pia2_kbB_w ) { -// LOG(("--->%s(%02x)\n", FUNCNAME, data)); +// LOG(("--->%s(%02x)\n", FUNCNAME, data)); /* Store the segment pattern but do not lit up the digit here, done by pulling the correct cathode low on Port A */ m_segments = BITSWAP8(data, 0, 4, 5, 3, 2, 1, 7, 6); @@ -299,7 +299,7 @@ void md6802_state::machine_reset() { LOG(("--->%s()\n", FUNCNAME)); m_led = 1; - m_maincpu->reset(); + m_maincpu->reset(); } /* Didact mp68a driver class */ @@ -310,9 +310,9 @@ void md6802_state::machine_reset() #define PIA6820 PIA6821 class mp68a_state : public didact_state { - public: + public: mp68a_state(const machine_config &mconfig, device_type type, const char * tag) - : didact_state(mconfig, type, tag) + : didact_state(mconfig, type, tag) ,m_maincpu(*this, "maincpu") ,m_digit0(*this, "digit0") ,m_digit1(*this, "digit1") @@ -322,7 +322,7 @@ class mp68a_state : public didact_state ,m_digit5(*this, "digit5") ,m_pia1(*this, "pia1") ,m_pia2(*this, "pia2") - { } + { } required_device<m6800_cpu_device> m_maincpu; @@ -367,8 +367,8 @@ WRITE8_MEMBER( mp68a_state::pia2_kbA_w ) but we are using data read from the port. */ digit_nbr = (data >> 4) & 0x07; - /* There is actually only one 9368 and a 74145 to drive the cathode of the right digit low */ - /* This can be emulated by prentending there are one 9368 per digit, at least for now */ + /* There is actually only one 9368 and a 74145 to drive the cathode of the right digit low */ + /* This can be emulated by prentending there are one 9368 per digit, at least for now */ switch (digit_nbr) { case 0: m_digit0->a_w(data & 0x0f); break; @@ -406,11 +406,11 @@ READ8_MEMBER( mp68a_state::pia2_kbB_r ) while (a012 > 0 && !(line & (1 << --a012))); } - pb = a012; // A0-A2 -> PB0-PB3 + pb = a012; // A0-A2 -> PB0-PB3 if (m_shift) { - pb |= 0x80; // Set shift bit (PB7) + pb |= 0x80; // Set shift bit (PB7) m_shift = 0; // Reset flip flop output().set_led_value(m_led, m_shift); LOG( ("SHIFT is released\n") ); @@ -489,31 +489,31 @@ INPUT_PORTS_END static INPUT_PORTS_START( md6802 ) PORT_START("LINE0") /* KEY ROW 0 */ - PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') - PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') - PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') - PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') + PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') + PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') + PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT(0xf0, 0x00, IPT_UNUSED ) PORT_START("LINE1") /* KEY ROW 1 */ - PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') - PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') - PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') - PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') + PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') + PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') + PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') + PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_BIT(0xf0, 0x00, IPT_UNUSED ) PORT_START("LINE2") /* KEY ROW 2 */ - PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') - PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') - PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') - PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') + PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') + PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') + PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0xf0, 0x00, IPT_UNUSED ) PORT_START("LINE3") /* KEY ROW 3 */ - PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') - PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') - PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') - PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') + PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') + PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') + PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') + PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT(0xf0, 0x00, IPT_UNUSED ) PORT_START("LINE4") /* Special KEY ROW for reset and Shift/'*' keys */ @@ -524,31 +524,31 @@ INPUT_PORTS_END static INPUT_PORTS_START( mp68a ) PORT_START("LINE0") /* KEY ROW 0 */ - PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') - PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') - PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') - PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT(0x0f, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("LINE1") /* KEY ROW 1 */ - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0xf0, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("LINE2") /* KEY ROW 2 */ - PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') - PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') - PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') - PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_BIT(0x0f, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("LINE3") /* KEY ROW 3 */ - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT(0xf0, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("LINE4") /* Special KEY ROW for reset and Shift/'*' keys */ @@ -559,7 +559,7 @@ INPUT_PORTS_END TIMER_DEVICE_CALLBACK_MEMBER(didact_state::scan_artwork) { - // LOG(("--->%s()\n", FUNCNAME)); + // LOG(("--->%s()\n", FUNCNAME)); // Poll the artwork Reset key if ( (m_io_line4->read() & 0x04) ) @@ -567,14 +567,14 @@ TIMER_DEVICE_CALLBACK_MEMBER(didact_state::scan_artwork) LOG( ("RESET is pressed, resetting the CPU\n") ); m_shift = 0; output().set_led_value(m_led, m_shift); // For mp68a only - if (m_reset == 0) + if (m_reset == 0) { machine_reset(); } m_reset = 1; // Inhibit multiple resets } - // Poll the artwork SHIFT/* key + // Poll the artwork SHIFT/* key else if ( (m_io_line4->read() & 0x08) ) { LOG( ("%s", !m_shift ? "SHIFT is set\n" : "") ); @@ -631,9 +631,9 @@ static MACHINE_CONFIG_START( md6802, md6802_state ) MACHINE_CONFIG_END static MACHINE_CONFIG_START( mp68a, mp68a_state ) - // Clock source is based on a N9602N Dual Retriggerable Resettable Monostable Multivibrator oscillator at aprox 505KHz. + // Clock source is based on a N9602N Dual Retriggerable Resettable Monostable Multivibrator oscillator at aprox 505KHz. // Trimpot seems broken/stuck at 5K Ohm thu. ROM code 1Ms delay loops suggest 1MHz+ - MCFG_CPU_ADD("maincpu", M6800, 505000) + MCFG_CPU_ADD("maincpu", M6800, 505000) MCFG_CPU_PROGRAM_MAP(mp68a_map) MCFG_DEFAULT_LAYOUT(layout_mp68a) @@ -646,14 +646,14 @@ static MACHINE_CONFIG_START( mp68a, mp68a_state ) /* --init----------------------- */ /* 0x0BAF 0x601 (Control A) = 0x30 - CA2 is low and enable DDRA */ /* 0x0BB1 0x603 (Control B) = 0x30 - CB2 is low and enable DDRB */ - /* 0x0BB5 0x600 (DDR A) = 0xFF - Port A all outputs and set to 0 (zero) */ - /* 0x0BB9 0x602 (DDR B) = 0x50 - Port B two outputs and set to 0 (zero) */ + /* 0x0BB5 0x600 (DDR A) = 0xFF - Port A all outputs and set to 0 (zero) */ + /* 0x0BB9 0x602 (DDR B) = 0x50 - Port B two outputs and set to 0 (zero) */ /* 0x0BBD 0x601 (Control A) = 0x34 - CA2 is low and lock DDRA */ /* 0x0BBF 0x603 (Control B) = 0x34 - CB2 is low and lock DDRB */ - /* 0x0BC3 0x602 (Port B) = 0x40 - Turn on display via RBI* on */ + /* 0x0BC3 0x602 (Port B) = 0x40 - Turn on display via RBI* on */ /* --execution-wait for key loop-- */ - /* 0x086B Update display sequnc, see below */ - /* 0x0826 CB1 read = 0x603 (Control B) - is a key presssed? */ + /* 0x086B Update display sequnc, see below */ + /* 0x0826 CB1 read = 0x603 (Control B) - is a key presssed? */ MCFG_PIA_WRITEPA_HANDLER(WRITE8(mp68a_state, pia2_kbA_w)) MCFG_PIA_READPA_HANDLER(READ8(mp68a_state, pia2_kbA_r)) MCFG_PIA_WRITEPB_HANDLER(WRITE8(mp68a_state, pia2_kbB_w)) @@ -663,18 +663,18 @@ static MACHINE_CONFIG_START( mp68a, mp68a_state ) MCFG_PIA_IRQB_HANDLER(DEVWRITELINE("maincpu", m6800_cpu_device, irq_line)) /* Not used by ROM. Combined trace to CPU IRQ with IRQA */ /* Display - sequence outputting all '0':s at start */ - /* 0x086B 0x600 (Port A) = 0x00 */ - /* 0x086B 0x600 (Port A) = 0x70 */ - /* 0x086B 0x600 (Port A) = 0x10 */ - /* 0x086B 0x600 (Port A) = 0x70 */ - /* 0x086B 0x600 (Port A) = 0x20 */ - /* 0x086B 0x600 (Port A) = 0x70 */ - /* 0x086B 0x600 (Port A) = 0x30 */ - /* 0x086B 0x600 (Port A) = 0x70 */ - /* 0x086B 0x600 (Port A) = 0x40 */ - /* 0x086B 0x600 (Port A) = 0x70 */ - /* 0x086B 0x600 (Port A) = 0x50 */ - /* 0x086B 0x600 (Port A) = 0x70 */ + /* 0x086B 0x600 (Port A) = 0x00 */ + /* 0x086B 0x600 (Port A) = 0x70 */ + /* 0x086B 0x600 (Port A) = 0x10 */ + /* 0x086B 0x600 (Port A) = 0x70 */ + /* 0x086B 0x600 (Port A) = 0x20 */ + /* 0x086B 0x600 (Port A) = 0x70 */ + /* 0x086B 0x600 (Port A) = 0x30 */ + /* 0x086B 0x600 (Port A) = 0x70 */ + /* 0x086B 0x600 (Port A) = 0x40 */ + /* 0x086B 0x600 (Port A) = 0x70 */ + /* 0x086B 0x600 (Port A) = 0x50 */ + /* 0x086B 0x600 (Port A) = 0x70 */ MCFG_DEVICE_ADD("digit0", DM9368, 0) MCFG_OUTPUT_INDEX(0) MCFG_DEVICE_ADD("digit1", DM9368, 0) @@ -715,6 +715,6 @@ ROM_START( mp68a ) // ROM image from http://elektronikforumet.com/forum/viewtopi ROM_END // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1979, mp68a, 0, 0, mp68a, mp68a, driver_device, 0, "Didact AB", "mp68a", MACHINE_NO_SOUND_HW ) -COMP( 1982, e100, 0, 0, e100, e100, driver_device, 0, "Didact AB", "Esselte 100", MACHINE_IS_SKELETON ) -COMP( 1983, md6802, 0, 0, md6802, md6802, driver_device, 0, "Didact AB", "Mikrodator 6802", MACHINE_NO_SOUND_HW ) +COMP( 1979, mp68a, 0, 0, mp68a, mp68a, driver_device, 0, "Didact AB", "mp68a", MACHINE_NO_SOUND_HW ) +COMP( 1982, e100, 0, 0, e100, e100, driver_device, 0, "Didact AB", "Esselte 100", MACHINE_IS_SKELETON ) +COMP( 1983, md6802, 0, 0, md6802, md6802, driver_device, 0, "Didact AB", "Mikrodator 6802", MACHINE_NO_SOUND_HW ) |