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-rw-r--r--src/mame/drivers/hp9825.cpp668
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diff --git a/src/mame/drivers/hp9825.cpp b/src/mame/drivers/hp9825.cpp
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+++ b/src/mame/drivers/hp9825.cpp
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+// license:BSD-3-Clause
+// copyright-holders:F. Ulivi
+
+// **************************
+// Driver for HP 9825 systems
+// **************************
+//
+// **** Temporary header, will hopefully evolve into proper doc ****
+//
+// What's in:
+// - Emulation of 9825B system
+// - 12 kw of RAMs
+// - 12 kw of system ROM
+// - Keyboard (SHIFT LOCK & RESET not implemented)
+// - Display & run light
+// What's not yet in:
+// - Internal & external expansion ROMs
+// - Configurable RAM size
+// - Printer
+// - DC100 tape drive
+// - I/O expansion slots: 98034 & 98035 modules from hp9845 emulation can be used here, too
+// - Beeper
+//
+// 9825A & 9825T can also be emulated. At the moment I haven't all the necessary
+// ROM dumps, though.
+
+#include "emu.h"
+#include "cpu/hphybrid/hphybrid.h"
+#include "machine/timer.h"
+#include "hp9825.lh"
+
+// CPU clock (generated by a trimmered RC oscillator)
+constexpr unsigned MAIN_CLOCK = 6000000;
+
+// KDP chip clock
+constexpr unsigned KDP_CLOCK = MAIN_CLOCK / 4;
+
+// Bit manipulation
+namespace {
+ template<typename T> constexpr T BIT_MASK(unsigned n)
+ {
+ return (T)1U << n;
+ }
+
+ template<typename T> void BIT_CLR(T& w , unsigned n)
+ {
+ w &= ~BIT_MASK<T>(n);
+ }
+
+ template<typename T> void BIT_SET(T& w , unsigned n)
+ {
+ w |= BIT_MASK<T>(n);
+ }
+}
+
+class hp9825_state : public driver_device
+{
+public:
+ hp9825_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_cpu(*this , "cpu")
+ , m_cursor_timer(*this , "cursor_timer")
+ , m_io_key(*this , "KEY%u" , 0)
+ , m_shift_key(*this , "KEY_SHIFT")
+ , m_display(*this , "char_%u_%u" , 0U , 0U)
+ , m_run_light(*this , "run_light")
+ {
+ }
+
+ void hp9825b(machine_config &config);
+
+private:
+ required_device<hp_09825_67907_cpu_device> m_cpu;
+ required_device<timer_device> m_cursor_timer;
+ required_ioport_array<4> m_io_key;
+ required_ioport m_shift_key;
+ output_finder<32 , 7> m_display;
+ output_finder<> m_run_light;
+
+ bool m_display_on;
+ uint8_t m_display_mem[ 32 ];
+ uint8_t m_display_idx;
+ bool m_rpl_cursor;
+ bool m_cursor_blink;
+ bool m_any_cursor;
+ uint8_t m_scancode;
+ bool m_key_pressed;
+ bool m_autorepeating;
+ unsigned m_autorepeat_cnt;
+ uint8_t m_irl_pending;
+ uint8_t m_irh_pending;
+
+ virtual void machine_start() override;
+ virtual void machine_reset() override;
+
+ void cpu_io_map(address_map &map);
+ void cpu_mem_map(address_map &map);
+
+ DECLARE_READ16_MEMBER(kb_scancode_r);
+ DECLARE_WRITE16_MEMBER(disp_w);
+ DECLARE_READ16_MEMBER(kdp_status_r);
+ DECLARE_WRITE16_MEMBER(kdp_control_w);
+
+ void update_display();
+ TIMER_DEVICE_CALLBACK_MEMBER(cursor_blink);
+ void kb_scan_ioport(ioport_value pressed , ioport_port &port , unsigned idx_base , int& max_seq_len , unsigned& max_seq_idx);
+ TIMER_DEVICE_CALLBACK_MEMBER(kb_scan);
+
+ IRQ_CALLBACK_MEMBER(irq_callback);
+ void update_irq();
+ void set_irq(uint8_t sc , int state);
+};
+
+void hp9825_state::machine_start()
+{
+ m_display.resolve();
+ m_run_light.resolve();
+
+ save_item(NAME(m_display_on));
+ save_item(NAME(m_display_mem));
+ save_item(NAME(m_display_idx));
+ save_item(NAME(m_scancode));
+ save_item(NAME(m_irl_pending));
+ save_item(NAME(m_irh_pending));
+}
+
+void hp9825_state::machine_reset()
+{
+ m_display_on = false;
+ m_display_idx = 0;
+ m_rpl_cursor = false;
+ m_cursor_timer->reset();
+ m_cursor_blink = true;
+ update_display();
+ m_scancode = 0;
+ m_key_pressed = false;
+ m_autorepeating = false;
+ m_autorepeat_cnt = 0;
+ m_irl_pending = 0;
+ m_irh_pending = 0;
+ update_irq();
+}
+
+void hp9825_state::cpu_io_map(address_map &map)
+{
+ map.unmap_value_low();
+ map(HP_MAKE_IOADDR(0 , 0) , HP_MAKE_IOADDR(0 , 0)).rw(FUNC(hp9825_state::kb_scancode_r) , FUNC(hp9825_state::disp_w));
+ map(HP_MAKE_IOADDR(0 , 1) , HP_MAKE_IOADDR(0 , 1)).rw(FUNC(hp9825_state::kdp_status_r) , FUNC(hp9825_state::kdp_control_w));
+ // TODO:
+}
+
+void hp9825_state::cpu_mem_map(address_map &map)
+{
+ map.unmap_value_low();
+ map(0x0000 , 0x2fff).rom();
+ map(0x5000 , 0x7fff).ram();
+}
+
+READ16_MEMBER(hp9825_state::kb_scancode_r)
+{
+ // TODO:
+ uint8_t res = m_scancode;
+ if (m_shift_key->read()) {
+ BIT_SET(res , 7);
+ }
+ set_irq(0 , false);
+ return res;
+}
+
+WRITE16_MEMBER(hp9825_state::disp_w)
+{
+ // TODO:
+ if (m_display_on) {
+ m_display_on = false;
+ m_cursor_timer->reset();
+ m_cursor_blink = true;
+ m_display_idx = 0;
+ update_display();
+ }
+ m_display_mem[ m_display_idx++ ] = uint8_t(data);
+}
+
+READ16_MEMBER(hp9825_state::kdp_status_r)
+{
+ // TODO:
+ return 8;
+}
+
+WRITE16_MEMBER(hp9825_state::kdp_control_w)
+{
+ // TODO:
+ bool regen_display = false;
+ if (BIT(data , 1) && !m_display_on) {
+ m_display_on = true;
+ // Cursor should blink at 2^-19 the KDP clock
+ attotime cursor_half_period{ attotime::from_ticks(262144 , KDP_CLOCK) };
+ m_cursor_timer->adjust(cursor_half_period , 0 , cursor_half_period);
+ regen_display = true;
+ }
+ if (BIT(data , 6) && !m_rpl_cursor) {
+ m_rpl_cursor = true;
+ regen_display = true;
+ }
+ if (BIT(data , 5) && m_rpl_cursor) {
+ m_rpl_cursor = false;
+ regen_display = true;
+ }
+ if (BIT(data , 4)) {
+ if (BIT(data , 3)) {
+ m_run_light = !m_run_light;
+ } else {
+ m_run_light = false;
+ }
+ } else if (BIT(data , 3)) {
+ m_run_light = true;
+ }
+ if (regen_display) {
+ update_display();
+ }
+}
+
+// The character generator was reverse engineered from images of printer & display test patterns.
+// It is not guaranteed to be pixel-accurate though it looks quite close to the original.
+static const uint8_t chargen[ 128 ][ 5 ] = {
+ { 0x08,0x1c,0x3e,0x7f,0x00 }, // 00
+ { 0x30,0x48,0x45,0x40,0x30 }, // 01
+ { 0x45,0x29,0x11,0x29,0x45 }, // 02
+ { 0x7d,0x09,0x11,0x21,0x7d }, // 03
+ { 0x38,0x44,0x44,0x38,0x44 }, // 04
+ { 0x7c,0x2a,0x4a,0x4a,0x34 }, // 05
+ { 0x7f,0x01,0x01,0x01,0x03 }, // 06
+ { 0x7d,0x09,0x05,0x05,0x79 }, // 07
+ { 0x60,0x58,0x46,0x58,0x60 }, // 08
+ { 0x38,0x44,0x44,0x3c,0x04 }, // 09
+ { 0x10,0x20,0x7f,0x20,0x10 }, // 0a
+ { 0x62,0x14,0x08,0x10,0x60 }, // 0b
+ { 0x40,0x3c,0x20,0x20,0x1c }, // 0c
+ { 0x08,0x1c,0x2a,0x08,0x08 }, // 0d
+ { 0x10,0x08,0x78,0x08,0x04 }, // 0e
+ { 0x08,0x55,0x7f,0x55,0x08 }, // 0f
+ { 0x3e,0x49,0x49,0x49,0x3e }, // 10
+ { 0x5e,0x61,0x01,0x61,0x5e }, // 11
+ { 0x30,0x4a,0x4d,0x49,0x30 }, // 12
+ { 0x78,0x14,0x15,0x14,0x78 }, // 13
+ { 0x38,0x44,0x45,0x3c,0x40 }, // 14
+ { 0x78,0x15,0x14,0x15,0x78 }, // 15
+ { 0x38,0x45,0x44,0x3d,0x40 }, // 16
+ { 0x3c,0x43,0x42,0x43,0x3c }, // 17
+ { 0x38,0x45,0x44,0x45,0x38 }, // 18
+ { 0x3e,0x41,0x40,0x41,0x3e }, // 19
+ { 0x3c,0x41,0x40,0x41,0x3c }, // 1a
+ { 0x7e,0x09,0x7f,0x49,0x49 }, // 1b
+ { 0x38,0x44,0x38,0x54,0x58 }, // 1c
+ { 0x12,0x19,0x15,0x12,0x00 }, // 1d
+ { 0x48,0x7e,0x49,0x41,0x42 }, // 1e
+ { 0x55,0x2a,0x55,0x2a,0x55 }, // 1f
+ { 0x00,0x00,0x00,0x00,0x00 }, // 20
+ { 0x00,0x5f,0x00,0x00,0x00 }, // 21
+ { 0x00,0x03,0x00,0x03,0x00 }, // 22
+ { 0x14,0x7f,0x14,0x7f,0x14 }, // 23
+ { 0x24,0x2a,0x7f,0x2a,0x12 }, // 24
+ { 0x23,0x13,0x08,0x64,0x62 }, // 25
+ { 0x36,0x49,0x56,0x20,0x50 }, // 26
+ { 0x00,0x0b,0x07,0x00,0x00 }, // 27
+ { 0x00,0x00,0x3e,0x41,0x00 }, // 28
+ { 0x00,0x41,0x3e,0x00,0x00 }, // 29
+ { 0x08,0x2a,0x1c,0x2a,0x08 }, // 2a
+ { 0x08,0x08,0x3e,0x08,0x08 }, // 2b
+ { 0x00,0x58,0x38,0x00,0x00 }, // 2c
+ { 0x08,0x08,0x08,0x08,0x08 }, // 2d
+ { 0x00,0x60,0x60,0x00,0x00 }, // 2e
+ { 0x20,0x10,0x08,0x04,0x02 }, // 2f
+ { 0x3e,0x51,0x49,0x45,0x3e }, // 30
+ { 0x00,0x42,0x7f,0x40,0x00 }, // 31
+ { 0x62,0x51,0x49,0x49,0x46 }, // 32
+ { 0x22,0x41,0x49,0x49,0x36 }, // 33
+ { 0x18,0x14,0x12,0x7f,0x10 }, // 34
+ { 0x27,0x45,0x45,0x45,0x39 }, // 35
+ { 0x3c,0x4a,0x49,0x49,0x30 }, // 36
+ { 0x01,0x71,0x09,0x05,0x03 }, // 37
+ { 0x36,0x49,0x49,0x49,0x36 }, // 38
+ { 0x06,0x49,0x49,0x29,0x1e }, // 39
+ { 0x00,0x36,0x36,0x00,0x00 }, // 3a
+ { 0x00,0x5b,0x3b,0x00,0x00 }, // 3b
+ { 0x00,0x08,0x14,0x22,0x41 }, // 3c
+ { 0x14,0x14,0x14,0x14,0x14 }, // 3d
+ { 0x41,0x22,0x14,0x08,0x00 }, // 3e
+ { 0x06,0x01,0x51,0x09,0x06 }, // 3f
+ { 0x3e,0x41,0x5d,0x55,0x1e }, // 40
+ { 0x7e,0x09,0x09,0x09,0x7e }, // 41
+ { 0x7f,0x49,0x49,0x49,0x36 }, // 42
+ { 0x3e,0x41,0x41,0x41,0x22 }, // 43
+ { 0x7f,0x41,0x41,0x41,0x3e }, // 44
+ { 0x7f,0x49,0x49,0x49,0x41 }, // 45
+ { 0x7f,0x09,0x09,0x09,0x01 }, // 46
+ { 0x3e,0x41,0x41,0x51,0x72 }, // 47
+ { 0x7f,0x08,0x08,0x08,0x7f }, // 48
+ { 0x00,0x41,0x7f,0x41,0x00 }, // 49
+ { 0x20,0x40,0x40,0x40,0x3f }, // 4a
+ { 0x7f,0x08,0x14,0x22,0x41 }, // 4b
+ { 0x7f,0x40,0x40,0x40,0x40 }, // 4c
+ { 0x7f,0x02,0x0c,0x02,0x7f }, // 4d
+ { 0x7f,0x04,0x08,0x10,0x7f }, // 4e
+ { 0x3e,0x41,0x41,0x41,0x3e }, // 4f
+ { 0x7f,0x09,0x09,0x09,0x06 }, // 50
+ { 0x3e,0x41,0x51,0x21,0x5e }, // 51
+ { 0x7f,0x09,0x19,0x29,0x46 }, // 52
+ { 0x26,0x49,0x49,0x49,0x32 }, // 53
+ { 0x01,0x01,0x7f,0x01,0x01 }, // 54
+ { 0x3f,0x40,0x40,0x40,0x3f }, // 55
+ { 0x07,0x18,0x60,0x18,0x07 }, // 56
+ { 0x7f,0x20,0x10,0x20,0x7f }, // 57
+ { 0x63,0x14,0x08,0x14,0x63 }, // 58
+ { 0x03,0x04,0x78,0x04,0x03 }, // 59
+ { 0x61,0x51,0x49,0x45,0x43 }, // 5a
+ { 0x00,0x00,0x7f,0x41,0x41 }, // 5b
+ { 0x20,0x7f,0x01,0x01,0x01 }, // 5c
+ { 0x41,0x41,0x7f,0x00,0x00 }, // 5d
+ { 0x04,0x02,0x7f,0x02,0x04 }, // 5e
+ { 0x40,0x40,0x40,0x40,0x40 }, // 5f
+ { 0x00,0x07,0x0b,0x00,0x00 }, // 60
+ { 0x38,0x44,0x44,0x3c,0x40 }, // 61
+ { 0x7f,0x48,0x44,0x44,0x38 }, // 62
+ { 0x38,0x44,0x44,0x44,0x20 }, // 63
+ { 0x38,0x44,0x44,0x48,0x7f }, // 64
+ { 0x38,0x54,0x54,0x54,0x08 }, // 65
+ { 0x08,0x7e,0x09,0x02,0x00 }, // 66
+ { 0x08,0x14,0x54,0x54,0x3c }, // 67
+ { 0x7f,0x08,0x04,0x04,0x78 }, // 68
+ { 0x00,0x44,0x7d,0x40,0x00 }, // 69
+ { 0x20,0x40,0x44,0x3d,0x00 }, // 6a
+ { 0x7f,0x10,0x28,0x44,0x00 }, // 6b
+ { 0x00,0x41,0x7f,0x40,0x00 }, // 6c
+ { 0x78,0x04,0x18,0x04,0x78 }, // 6d
+ { 0x7c,0x08,0x04,0x04,0x78 }, // 6e
+ { 0x38,0x44,0x44,0x44,0x38 }, // 6f
+ { 0x7c,0x14,0x24,0x24,0x18 }, // 70
+ { 0x18,0x24,0x14,0x7c,0x40 }, // 71
+ { 0x7c,0x08,0x04,0x04,0x00 }, // 72
+ { 0x48,0x54,0x54,0x54,0x20 }, // 73
+ { 0x04,0x3e,0x44,0x20,0x00 }, // 74
+ { 0x3c,0x40,0x40,0x20,0x7c }, // 75
+ { 0x1c,0x20,0x40,0x20,0x1c }, // 76
+ { 0x3c,0x40,0x30,0x40,0x3c }, // 77
+ { 0x44,0x28,0x10,0x28,0x44 }, // 78
+ { 0x04,0x48,0x30,0x08,0x04 }, // 79
+ { 0x44,0x64,0x54,0x4c,0x44 }, // 7a
+ { 0x08,0x7c,0x04,0x7c,0x02 }, // 7b
+ { 0x00,0x00,0x7f,0x00,0x00 }, // 7c
+ { 0x08,0x08,0x2a,0x1c,0x08 }, // 7d
+ { 0x41,0x63,0x55,0x49,0x63 }, // 7e
+ { 0x7f,0x08,0x08,0x08,0x08 } // 7f
+};
+
+void hp9825_state::update_display()
+{
+ m_any_cursor = false;
+ for (unsigned i = 0; i < 32; ++i) {
+ bool cursor_here = BIT(m_display_mem[ i ] , 7);
+ if (cursor_here) {
+ m_any_cursor = true;
+ }
+ bool show_cursor = m_cursor_blink && cursor_here;
+ uint8_t char_code = m_display_mem[ i ] & 0x7f;
+ for (unsigned j = 0; j < 7; ++j) {
+ uint8_t five_dots = 0;
+ if (m_display_on) {
+ for (unsigned col = 0; col < 5; col++) {
+ uint8_t char_col;
+ if (show_cursor) {
+ if (m_rpl_cursor) {
+ // Replace cursor: all pixels lit
+ char_col = ~0;
+ } else {
+ // Insert cursor: character code 0
+ char_col = chargen[ 0 ][ col ];
+ }
+ } else {
+ char_col = chargen[ char_code ][ col ];
+ }
+ if (BIT(char_col , j)) {
+ BIT_SET(five_dots , col);
+ }
+ }
+ }
+ m_display[ i ][ j ] = five_dots;
+ }
+ }
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(hp9825_state::cursor_blink)
+{
+ m_cursor_blink = !m_cursor_blink;
+ if (m_any_cursor) {
+ update_display();
+ }
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(hp9825_state::kb_scan)
+{
+ ioport_value input[ 4 ]
+ { m_io_key[ 0 ]->read(),
+ m_io_key[ 1 ]->read(),
+ m_io_key[ 2 ]->read(),
+ m_io_key[ 3 ]->read()
+ };
+
+ if (m_key_pressed) {
+ // Still pressed ?
+ m_key_pressed = BIT(input[ m_scancode / 32 ] , m_scancode % 32);
+ } else {
+ int max_seq_len = 0;
+ unsigned max_seq_idx = 0;
+ for (unsigned i = 0; i < 4; i++) {
+ kb_scan_ioport(input[ i ] , *m_io_key[ i ] , i << 5 , max_seq_len , max_seq_idx);
+ }
+ if (max_seq_len) {
+ m_scancode = max_seq_idx;
+ m_key_pressed = true;
+ set_irq(0 , true);
+ }
+ }
+
+ if (m_key_pressed) {
+ auto prev_cnt = m_autorepeat_cnt;
+ m_autorepeat_cnt++;
+ // Auto-repeat initial delay & frequency are entirely guessed..
+ if (BIT(m_autorepeat_cnt , 5)) {
+ // Initial delay passed
+ m_autorepeating = true;
+ }
+ if (m_autorepeating && BIT(~prev_cnt & m_autorepeat_cnt , 3)) {
+ // Repeat key every time bit 3 of autorepeat counter goes 0->1
+ set_irq(0 , true);
+ }
+ } else {
+ m_autorepeating = false;
+ m_autorepeat_cnt = 0;
+ }
+}
+
+void hp9825_state::kb_scan_ioport(ioport_value pressed , ioport_port &port , unsigned idx_base , int& max_seq_len , unsigned& max_seq_idx)
+{
+ while (pressed) {
+ unsigned bit_no = 31 - count_leading_zeros(pressed);
+ ioport_value mask = BIT_MASK<ioport_value>(bit_no);
+ int seq_len = port.field(mask)->seq().length();
+ if (seq_len > max_seq_len) {
+ max_seq_len = seq_len;
+ max_seq_idx = bit_no + idx_base;
+ }
+ pressed &= ~mask;
+ }
+}
+
+IRQ_CALLBACK_MEMBER(hp9825_state::irq_callback)
+{
+ if (irqline == HPHYBRID_IRL) {
+ return m_irl_pending;
+ } else {
+ return m_irh_pending;
+ }
+}
+
+void hp9825_state::update_irq()
+{
+ m_cpu->set_input_line(HPHYBRID_IRL , m_irl_pending != 0);
+ m_cpu->set_input_line(HPHYBRID_IRH , m_irh_pending != 0);
+}
+
+void hp9825_state::set_irq(uint8_t sc , int state)
+{
+ unsigned bit_n = sc % 8;
+
+ if (sc < 8) {
+ if (state) {
+ BIT_SET(m_irl_pending, bit_n);
+ } else {
+ BIT_CLR(m_irl_pending, bit_n);
+ }
+ } else {
+ if (state) {
+ BIT_SET(m_irh_pending, bit_n);
+ } else {
+ BIT_CLR(m_irh_pending, bit_n);
+ }
+ }
+ update_irq();
+}
+
+MACHINE_CONFIG_START(hp9825_state::hp9825b)
+ HP_09825_67907(config , m_cpu , MAIN_CLOCK);
+ // Just guessing... settings borrowed from hp9845
+ m_cpu->set_rw_cycles(6 , 6);
+ m_cpu->set_relative_mode(false);
+ m_cpu->set_addrmap(AS_PROGRAM , &hp9825_state::cpu_mem_map);
+ m_cpu->set_addrmap(AS_IO , &hp9825_state::cpu_io_map);
+ m_cpu->set_irq_acknowledge_callback(FUNC(hp9825_state::irq_callback));
+
+ TIMER(config , m_cursor_timer , 0).configure_generic(timer_device::expired_delegate(FUNC(hp9825_state::cursor_blink) , this));
+
+ // Keyboard scan timer. A scan of the whole keyboard should take 2^14 KDP clocks.
+ TIMER(config , "kb_timer" , 0).configure_periodic(timer_device::expired_delegate(FUNC(hp9825_state::kb_scan) , this) , attotime::from_ticks(16384 , KDP_CLOCK));
+
+ config.set_default_layout(layout_hp9825);
+MACHINE_CONFIG_END
+
+#define IOP_MASK(x) BIT_MASK<ioport_value>((x))
+
+static INPUT_PORTS_START(hp9825)
+ // Keyboard is arranged in a 8 x 16 matrix. Of the 128 possible positions, 102 are used.
+ // Keys are mapped on bit b of KEYn
+ // where b = (row & 1) << 4 + column, n = row >> 1
+ // column = [0..15]
+ // row = [0..7]
+ // 4 more keys are not in the matrix: 2 SHIFTs, 1 SHIFT LOCK and RESET key.
+ // Fun fact: alphanumeric keys are arranged in the matrix so that their scancode (row/column number)
+ // equals the lower case ASCII code. The person in charge of routing the keyboard PCB
+ // must have loved this arrangement...
+ PORT_START("KEY0")
+ PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,0: N/U
+ PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_NAME("Stop") // 0,1: Stop
+ PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Rewind") // 0,2: Rewind
+ PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,3: N/U
+ PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,4: N/U
+ PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,5: N/U
+ PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,6: N/U
+ PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Result") // 0,7: Result
+ PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line insert") // 0,8: Line insert
+ PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line delete") // 0,9: Line delete
+ PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) PORT_NAME("Execute") // 0,10: Execute
+ PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line recall") // 0,11: Line recall
+ PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Run") // 0,12: Run
+ PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Store") // 0,13: Store
+ PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Display left") // 0,14: Display left
+ PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Display right") // 0,15: Display right
+ PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_NAME("Display down") // 1,0: Display down
+ PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_NAME("Display up") // 1,1: Display up
+ PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_NAME("Clear") // 1,2: Clear
+ PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Print all") // 1,3: Print all
+ PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_NAME("Char back") // 1,4: Char back
+ PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("Char forward") // 1,5: Char forward
+ PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_NAME("Char ins/rpl") // 1,6: Char ins/rpl
+ PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("Char delete") // 1,7: Char delete
+ PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Step") // 1,8: Step
+ PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Continue") PORT_CHAR(13) // 1,9: Continue
+ PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_UNUSED) // 1,10: N/U
+ PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("List") // 1,11: List
+ PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line fetch") // 1,12: Line fetch
+ PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Erase") // 1,13: Erase
+ PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Record") // 1,14: Record
+ PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Load") // 1,15: Load
+
+ PORT_START("KEY1")
+ PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') // 2,0: Space
+ PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,1: N/U
+ PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,2: N/U
+ PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,3: N/U
+ PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,4: N/U
+ PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,5: N/U
+ PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,6: N/U
+ PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,7: N/U
+ PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('(') PORT_NAME("Keypad (") // 2,8: KP (
+ PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(')') PORT_NAME("Keypad )") // 2,9: KP )
+ PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) // 2,10: KP *
+ PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) // 2,11: KP +
+ PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') // 2,12: ,
+ PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) // 2,13: KP -
+ PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') // 2,14: .
+ PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) // 2,15: KP /
+ PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('\'') // 3,0: 0
+ PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') // 3,1: 1
+ PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') // 3,2: 2
+ PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // 3,3: 3
+ PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') // 3,4: 4
+ PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') // 3,5: 5
+ PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') // 3,6: 6
+ PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('@') // 3,7: 7
+ PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('[') // 3,8: 8
+ PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(']') // 3,9: 9
+ PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_UNUSED) // 3,10: N/U
+ PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') // 3,11: ;
+ PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_UNUSED) // 3,12: N/U
+ PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS_PAD) PORT_CHAR(UCHAR_MAMEKEY(EQUALS_PAD)) // 3,13: =
+ PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_UNUSED) // 3,14: N/U
+ PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('?') PORT_CHAR(':') // 3,15: ?
+
+ PORT_START("KEY2")
+ PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_UNUSED) // 4,0: N/U
+ PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("f0") // 4,1: f0
+ PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_NAME("f1") // 4,2: f1
+ PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_NAME("f2") // 4,3: f2
+ PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_NAME("f3") // 4,4: f3
+ PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_NAME("f4") // 4,5: f4
+ PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_NAME("f5") // 4,6: f5
+ PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_NAME("f6") // 4,7: f6
+ PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_NAME("f7") // 4,8: f7
+ PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_NAME("f8") // 4,9: f8
+ PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) PORT_NAME("f9") // 4,10: f9
+ PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) PORT_NAME("f10") // 4,11: f10
+ PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F11) PORT_CHAR(UCHAR_MAMEKEY(F11)) PORT_NAME("f11") // 4,12: f11
+ PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_UNUSED) // 4,13: N/U
+ PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) // 4,14: KP 0
+ PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) // 4,15: KP 1
+ PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) // 5,0: KP 2
+ PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) // 5,1: KP 3
+ PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) // 5,2: KP 4
+ PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) // 5,3: KP 5
+ PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) // 5,4: KP 6
+ PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) // 5,5: KP 7
+ PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) // 5,6: KP 8
+ PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) // 5,7: KP 9
+ PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) // 5,8: KP .
+ PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA_PAD) PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) // 5,9: KP ,
+ PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,10: N/U
+ PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,11: N/U
+ PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,12: N/U
+ PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,13: N/U
+ PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_NAME("↑ √") // 5,14: ^
+ PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,15: N/U
+
+ PORT_START("KEY3")
+ PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Enter exp _") // 6,0: Enter exp
+ PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') // 6,1: A
+ PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') // 6,2: B
+ PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') // 6,3: C
+ PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') // 6,4: D
+ PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') // 6,5: E
+ PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') // 6,6: F
+ PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') // 6,7: G
+ PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') // 6,8: H
+ PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') // 6,9: I
+ PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') // 6,10: J
+ PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') // 6,11: K
+ PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') // 6,12: L
+ PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') // 6,13: M
+ PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') // 6,14: N
+ PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') // 6,15: O
+ PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') // 7,0: P
+ PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') // 7,1: Q
+ PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') // 7,2: R
+ PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') // 7,3: S
+ PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') // 7,4: T
+ PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') // 7,5: U
+ PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') // 7,6: V
+ PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') // 7,7: W
+ PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') // 7,8: X
+ PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') // 7,9: Y
+ PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') // 7,10: Z
+ PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("π |") // 7,11: Pi
+ PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,12: N/U
+ PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_END) PORT_NAME("→") // 7,13: Gazinta
+ PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,14: N/U
+ PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,15: N/U
+
+ PORT_START("KEY_SHIFT")
+ PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // Shift
+INPUT_PORTS_END
+
+ROM_START(hp9825b)
+ ROM_REGION(0x6000 , "cpu" , ROMREGION_16BIT | ROMREGION_BE)
+ ROM_LOAD("sysrom1.bin" , 0x0000 , 0x2000 , CRC(fe429268) SHA1(f2fe7c5abca92bd13f81b4385fc4fce0cafb0da0))
+ ROM_LOAD("sysrom2.bin" , 0x2000 , 0x2000 , CRC(96093b5d) SHA1(c6ec4cafd019887df0fa849b3c7070bb74faee54))
+ ROM_LOAD("sysrom3.bin" , 0x4000 , 0x2000 , CRC(f9470f67) SHA1(b80cb4a366d93bd7acc3508ce987bb11c5986b2a))
+ROM_END
+
+// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
+COMP(1980, hp9825b, 0, 0, hp9825b, hp9825, hp9825_state, empty_init, "Hewlett-Packard", "HP 9825B", MACHINE_NO_SOUND)