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mackbd: Added M0110T Italian QZERTY keyboard and updated notes.

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This commit is contained in:
Vas Crabb 2020-07-01 14:37:08 +10:00
parent 2123d82d90
commit 59732738fb
4 changed files with 108 additions and 31 deletions
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128
src/devices/bus/mackbd/keyboard.cpp
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@ -91,16 +91,15 @@
* M0110 (U.S. - ANSI)
* M0110B (British - ISO)
* M0110F (French - ISO)
* M0110T (Italian - ISO)
Also known to exist:
* Japanese - ANSI
* Italian - ISO
* M0110T
* Japanese - ANSI (U.S. with different key caps)
* M0120P - keypad, icons for Clear/Enter rather than English text
TODO:
* Determine whether P00 or P01 actually feeds the keypad watchdog
* Find more model numbers and implement more layouts
* Is the kana key on the Japanese version locking?
***************************************************************************/
@ -480,30 +479,30 @@ INPUT_PORTS_START(keyboard_gb)
PORT_INCLUDE(keyboard_us)
PORT_MODIFY("ROW1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\\') PORT_CHAR('|')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\\') PORT_CHAR('|')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_MODIFY("ROW3")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xa3) // £
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xa3) // £
PORT_MODIFY("ROW6")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('`') PORT_CHAR('~')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('`') PORT_CHAR('~')
PORT_MODIFY("ROW7")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0d) PORT_NAME("Return")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0d) PORT_NAME("Return")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_MODIFY("ROW8")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Enter")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0xa7) PORT_CHAR('#') // §
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Enter")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0xa7) PORT_CHAR('#') // §
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
INPUT_PORTS_END
@ -527,31 +526,31 @@ INPUT_PORTS_START(keyboard_fr)
PORT_MODIFY("ROW3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('&') PORT_CHAR('1')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR(0xe9) PORT_CHAR('2') // é
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR(0xe9) PORT_CHAR('2') // é
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('"') PORT_CHAR('3')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('\'') PORT_CHAR('4')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR(0xa7) PORT_CHAR('6') // §
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR(0xa7) PORT_CHAR('6') // §
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('(') PORT_CHAR('5')
PORT_MODIFY("ROW4")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('-') PORT_CHAR('_')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR(0xe7) PORT_CHAR('9') // ç
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR(0xe8) PORT_CHAR('7') // è
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR(')') PORT_CHAR(0xb0) // °
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR(0xe7) PORT_CHAR('9') // ç
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR(0xe8) PORT_CHAR('7') // è
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR(')') PORT_CHAR(0xb0) // °
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('!') PORT_CHAR('8')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR(0xe0) PORT_CHAR('0') // à
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR(0xe0) PORT_CHAR('0') // à
PORT_MODIFY("ROW5")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('$') PORT_CHAR('*')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x2c6) PORT_CHAR(0xa8) // ˆ ¨
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x2c6) PORT_CHAR(0xa8) // ˆ ¨
PORT_MODIFY("ROW6")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('`') PORT_CHAR(0xa3) // £
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(0xf9) PORT_CHAR('%') // ù
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('`') PORT_CHAR(0xa3) // £
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(0xf9) PORT_CHAR('%') // ù
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR('m') PORT_CHAR('M')
PORT_MODIFY("ROW7")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0d) PORT_NAME("Return")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0d) PORT_NAME("Return")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR(',') PORT_CHAR('?')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR(':') PORT_CHAR('/')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
@ -559,7 +558,58 @@ INPUT_PORTS_START(keyboard_fr)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(';') PORT_CHAR('.')
PORT_MODIFY("ROW8")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Enter")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Enter")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('@') PORT_CHAR('#')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
INPUT_PORTS_END
INPUT_PORTS_START(keyboard_it)
PORT_INCLUDE(keyboard_us)
PORT_MODIFY("ROW1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('<') PORT_CHAR('>')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR(0xf2) PORT_CHAR('!') // ò
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_MODIFY("ROW2")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('z') PORT_CHAR('Z')
PORT_MODIFY("ROW3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('&') PORT_CHAR('1')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('"') PORT_CHAR('2')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('\'') PORT_CHAR('3')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('(') PORT_CHAR('4')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR(0xe8) PORT_CHAR('6') // è
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR(0xe7) PORT_CHAR('5') // ç
PORT_MODIFY("ROW4")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR(0xe0) PORT_CHAR('9') // à
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR(')') PORT_CHAR('7')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR(0xa3) PORT_CHAR('8') // £
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR(0xe9) PORT_CHAR('0') // é
PORT_MODIFY("ROW5")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('$') PORT_CHAR('*')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0xec) PORT_CHAR(0x2c6) // ì ˆ
PORT_MODIFY("ROW6")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(0xa7) PORT_CHAR(0xb0) // § °
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(0xf9) PORT_CHAR('%') // ù
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR('m') PORT_CHAR('M')
PORT_MODIFY("ROW7")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0d) PORT_NAME("Return")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR(',') PORT_CHAR('?')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR(':') PORT_CHAR('/')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(';') PORT_CHAR('.')
PORT_MODIFY("ROW8")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Enter")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('@') PORT_CHAR('#')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
INPUT_PORTS_END
@ -610,6 +660,21 @@ protected:
}
};
class m0110t_device : public keyboard_base
{
public:
m0110t_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock)
: keyboard_base(mconfig, MACKBD_M0110T, tag, owner, clock)
{
}
protected:
virtual ioport_constructor device_input_ports() const override
{
return INPUT_PORTS_NAME(keyboard_it);
}
};
INPUT_PORTS_START(keypad)
PORT_START("ROW0")
@ -673,5 +738,6 @@ protected:
DEFINE_DEVICE_TYPE_PRIVATE(MACKBD_M0110, device_mac_keyboard_interface, m0110_device, "mackbd_m0110", "Macintosh Keyboard (U.S. - M0110)")
DEFINE_DEVICE_TYPE_PRIVATE(MACKBD_M0110B, device_mac_keyboard_interface, m0110b_device, "mackbd_m0110b", "Macintosh Keyboard (British - M0110B)")
DEFINE_DEVICE_TYPE_PRIVATE(MACKBD_M0110F, device_mac_keyboard_interface, m0110f_device, "mackbd_m0110f", "Macintosh Keyboard (French - M0110F)")
DEFINE_DEVICE_TYPE_PRIVATE(MACKBD_M0110T, device_mac_keyboard_interface, m0110t_device, "mackbd_m0110t", "Macintosh Keyboard (Italian - M0110T)")
DEFINE_DEVICE_TYPE_PRIVATE(MACKBD_M0120, device_mac_keyboard_interface, m0120_device, "mackbd_m0120", "Macintosh Numeric Keypad (M0120)")

1
src/devices/bus/mackbd/keyboard.h
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@ -15,6 +15,7 @@
DECLARE_DEVICE_TYPE(MACKBD_M0110, device_mac_keyboard_interface)
DECLARE_DEVICE_TYPE(MACKBD_M0110B, device_mac_keyboard_interface)
DECLARE_DEVICE_TYPE(MACKBD_M0110F, device_mac_keyboard_interface)
DECLARE_DEVICE_TYPE(MACKBD_M0110T, device_mac_keyboard_interface)
DECLARE_DEVICE_TYPE(MACKBD_M0120, device_mac_keyboard_interface)

1
src/devices/bus/mackbd/mackbd.cpp
View File

@ -156,6 +156,7 @@ void mac_keyboard_devices(device_slot_interface &device)
device.option_add("us", MACKBD_M0110);
device.option_add("gb", MACKBD_M0110B);
device.option_add("fr", MACKBD_M0110F);
device.option_add("it", MACKBD_M0110T);
device.option_add("pad", MACKBD_M0120);

9
src/devices/bus/mackbd/pluskbd.cpp
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@ -7,6 +7,15 @@
This keyboard was only available in U.S./ANSI layout. International
markets continued to receive the M0110/M0120 keyboard/keypad.
A version was made with katakana labels on the key caps in addition
to the Latin labels, ¥ (Yen) replacing \ (backslash), and カナ
(kana) replacing Caps Lock. It is still has the ANSI "typewriter
shift" arrangement for Latin characters and ASCII punctuation (it
doesn't use the JIS "bit shift" arrangement), all keys are in the
same positions, and there are no additional keys. It's functionally
identical to the U.S. version (including the kana key mechanically
locking like Caps Lock).
Emulation based entirely on examining the MPU program and observing
behaviour. There may be additional hardware in the keyboard that is
not emulated (e.g. a watchdog timer).