mirror of
https://github.com/holub/mame
synced 2025-10-06 00:54:22 +03:00
394 lines
15 KiB
C
394 lines
15 KiB
C
/**********************************************************************
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Tandy Radio Shack TRS-80 Model II keyboard emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************/
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#include "trs80m2kb.h"
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//**************************************************************************
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// MACROS / CONSTANTS
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//**************************************************************************
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#define I8021_TAG "z4"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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const device_type TRS80M2_KEYBOARD = &device_creator<trs80m2_keyboard_device>;
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//-------------------------------------------------
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// ROM( trs80m2_keyboard )
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//-------------------------------------------------
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ROM_START( trs80m2_keyboard )
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ROM_REGION( 0x400, I8021_TAG, 0 )
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ROM_LOAD( "65-1991.z4", 0x0000, 0x0400, NO_DUMP )
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ROM_END
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//-------------------------------------------------
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// rom_region - device-specific ROM region
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//-------------------------------------------------
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const rom_entry *trs80m2_keyboard_device::device_rom_region() const
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{
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return ROM_NAME( trs80m2_keyboard );
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}
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//-------------------------------------------------
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// ADDRESS_MAP( kb_io )
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//-------------------------------------------------
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static ADDRESS_MAP_START( trs80m2_keyboard_io, AS_IO, 8, trs80m2_keyboard_device )
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AM_RANGE(MCS48_PORT_T1, MCS48_PORT_T1) AM_READ(kb_t1_r)
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AM_RANGE(MCS48_PORT_P0, MCS48_PORT_P0) AM_READ(kb_p0_r)
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AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_WRITE(kb_p1_w)
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AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_WRITE(kb_p2_w)
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ADDRESS_MAP_END
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//-------------------------------------------------
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// MACHINE_DRIVER( trs80m2_keyboard )
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//-------------------------------------------------
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static MACHINE_CONFIG_FRAGMENT( trs80m2_keyboard )
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MCFG_CPU_ADD(I8021_TAG, I8021, 3000000) // 1000uH inductor connected across the XTAL inputs
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MCFG_CPU_IO_MAP(trs80m2_keyboard_io)
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MCFG_DEVICE_DISABLE() // TODO
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MACHINE_CONFIG_END
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//-------------------------------------------------
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// machine_config_additions - device-specific
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// machine configurations
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//-------------------------------------------------
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machine_config_constructor trs80m2_keyboard_device::device_mconfig_additions() const
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{
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return MACHINE_CONFIG_NAME( trs80m2_keyboard );
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}
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//-------------------------------------------------
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// INPUT_PORTS( trs80m2_keyboard )
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//-------------------------------------------------
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INPUT_PORTS_START( trs80m2_keyboard )
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PORT_START("Y0")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD)
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_START("Y1")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_START("Y2")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("REPEAT")
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Right SHIFT") PORT_CODE(KEYCODE_RSHIFT)
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Left SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LOCK")
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_START("Y3")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("cannot read label")
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_DEL_PAD)
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD)
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
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PORT_START("Y4")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD)
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
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PORT_START("Y5")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("HOLD")
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD)
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
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PORT_START("Y6")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad ENTER") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13)
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD)
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD)
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PORT_START("Y7")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD)
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD)
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PORT_START("Y8")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD)
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD)
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PORT_START("Y9")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_START("YA")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_START("YB")
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
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INPUT_PORTS_END
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//-------------------------------------------------
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// input_ports - device-specific input ports
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//-------------------------------------------------
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ioport_constructor trs80m2_keyboard_device::device_input_ports() const
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{
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return INPUT_PORTS_NAME( trs80m2_keyboard );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// trs80m2_keyboard_device - constructor
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//-------------------------------------------------
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trs80m2_keyboard_device::trs80m2_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: device_t(mconfig, TRS80M2_KEYBOARD, "TRS-80 Model II Keyboard", tag, owner, clock, "trs80m2kb", __FILE__),
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m_maincpu(*this, I8021_TAG),
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m_y0(*this, "Y0"),
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m_y1(*this, "Y1"),
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m_y2(*this, "Y2"),
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m_y3(*this, "Y3"),
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m_y4(*this, "Y4"),
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m_y5(*this, "Y5"),
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m_y6(*this, "Y6"),
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m_y7(*this, "Y7"),
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m_y8(*this, "Y8"),
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m_y9(*this, "Y9"),
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m_ya(*this, "YA"),
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m_yb(*this, "YB"),
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m_write_clock(*this),
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m_busy(1),
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m_data(1),
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m_clk(0)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void trs80m2_keyboard_device::device_start()
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{
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// resolve callbacks
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m_write_clock.resolve_safe();
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// state saving
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save_item(NAME(m_busy));
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save_item(NAME(m_data));
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save_item(NAME(m_clk));
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save_item(NAME(m_y));
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void trs80m2_keyboard_device::device_reset()
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{
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}
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//-------------------------------------------------
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// busy_w -
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//-------------------------------------------------
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WRITE_LINE_MEMBER( trs80m2_keyboard_device::busy_w )
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{
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m_busy = state;
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}
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//-------------------------------------------------
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// data_r -
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//-------------------------------------------------
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READ_LINE_MEMBER( trs80m2_keyboard_device::data_r )
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{
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return m_data;
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}
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//-------------------------------------------------
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// kb_t1_r -
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//-------------------------------------------------
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READ8_MEMBER( trs80m2_keyboard_device::kb_t1_r )
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{
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return m_busy;
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}
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//-------------------------------------------------
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// kb_p0_r -
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//-------------------------------------------------
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READ8_MEMBER( trs80m2_keyboard_device::kb_p0_r )
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{
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UINT8 data = 0xff;
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switch (m_y)
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{
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case 0: data &= m_y0->read(); break;
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case 1: data &= m_y1->read(); break;
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case 2: data &= m_y2->read(); break;
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case 3: data &= m_y3->read(); break;
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case 4: data &= m_y4->read(); break;
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case 5: data &= m_y5->read(); break;
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case 6: data &= m_y6->read(); break;
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case 7: data &= m_y7->read(); break;
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case 8: data &= m_y8->read(); break;
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case 9: data &= m_y9->read(); break;
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case 0xa: data &= m_ya->read(); break;
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case 0xb: data &= m_yb->read(); break;
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}
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return data;
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}
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//-------------------------------------------------
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// kb_p1_w -
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//-------------------------------------------------
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WRITE8_MEMBER( trs80m2_keyboard_device::kb_p1_w )
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{
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/*
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bit description
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0 DATA
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1 CLOCK
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2 LED
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3
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4 LED
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5
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6
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7
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*/
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m_data = BIT(data, 0);
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int clk = BIT(data, 1);
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if (m_clk != clk)
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{
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m_write_clock(clk);
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m_clk = clk;
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}
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output_set_led_value(LED_0, BIT(data, 2));
|
|
output_set_led_value(LED_1, BIT(data, 4));
|
|
}
|
|
|
|
|
|
//-------------------------------------------------
|
|
// kb_p2_w -
|
|
//-------------------------------------------------
|
|
|
|
WRITE8_MEMBER( trs80m2_keyboard_device::kb_p2_w )
|
|
{
|
|
/*
|
|
|
|
bit description
|
|
|
|
0 D
|
|
1 C
|
|
2 B
|
|
3 A
|
|
4
|
|
5
|
|
6
|
|
7
|
|
|
|
*/
|
|
|
|
m_y = BITSWAP8(data, 7, 6, 5, 4, 0, 1, 2, 3) & 0x0f;
|
|
}
|