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https://github.com/holub/mame
synced 2025-04-22 08:22:15 +03:00
braiplus: Add preliminary keyboard
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AJR
parent
ec64e9200e
commit
52e0c86f66
@ -25,6 +25,7 @@ Floppy disk holds 792kb (formatted).
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "machine/clock.h"
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#include "machine/f4702.h"
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#include "machine/i8251.h"
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#include "machine/wd_fdc.h"
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#include "machine/z80pio.h"
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@ -36,26 +37,41 @@ public:
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_pio(*this, "pio%u", 1U)
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, m_keyboard(*this, "K%u", 0U)
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, m_baud_rate(0)
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{
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}
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void braiplus(machine_config &config);
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private:
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void baud_rate_w(u8 data);
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u8 baud_rate_r();
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void bank_w(u8 data);
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void unknown_w(u8 data);
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u8 unknown1_r();
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u8 unknown2_r();
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u8 unknown_dummy_r();
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u8 keyboard_r(offs_t offset);
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void mem_map(address_map &map);
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void io_map(address_map &map);
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required_device<z80_device> m_maincpu;
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required_device_array<z80pio_device, 2> m_pio;
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required_ioport_array<10> m_keyboard;
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u8 m_baud_rate;
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};
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void braiplus_state::baud_rate_w(u8 data)
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{
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m_baud_rate = data >> 4;
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}
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u8 braiplus_state::baud_rate_r()
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{
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return m_baud_rate;
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}
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void braiplus_state::bank_w(u8 data)
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{
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// TODO: bankswitching
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@ -66,33 +82,24 @@ void braiplus_state::unknown_w(u8 data)
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// TODO: unknown (only high nibble used)
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}
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u8 braiplus_state::unknown1_r()
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u8 braiplus_state::keyboard_r(offs_t offset)
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{
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// TODO: keyboard input? (only high nibble used)
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return 0;
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}
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u8 ret = offset < 0x14 ? m_keyboard[offset >> 1]->read() : 0xff;
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if (BIT(offset, 0))
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ret >>= 4;
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else
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ret &= 0x0f;
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u8 braiplus_state::unknown2_r()
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{
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// TODO: keyboard input? (only high nibble used)
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return 0;
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}
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u8 braiplus_state::unknown_dummy_r()
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{
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// TODO: what is this? (value always discarded)
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return 0xff;
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// TODO: high nibble appears to be used by an optional PC/XT keyboard adapter
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return ret | 0xf0;
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}
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void braiplus_state::mem_map(address_map &map)
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{
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map(0x0000, 0x3fff).rom().region("maincpu", 0);
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map(0x8000, 0x8000).r(FUNC(braiplus_state::unknown1_r));
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map(0x8001, 0x8001).r(FUNC(braiplus_state::unknown2_r));
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map(0x8002, 0x8002).r(FUNC(braiplus_state::unknown_dummy_r));
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map(0x8000, 0x801f).r(FUNC(braiplus_state::keyboard_r));
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map(0xa000, 0xbfff).ram();
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map(0xf200, 0xf2ff).ram();
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map(0xf800, 0xffff).ram();
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map(0xf000, 0xffff).ram();
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}
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void braiplus_state::io_map(address_map &map)
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@ -101,13 +108,112 @@ void braiplus_state::io_map(address_map &map)
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map(0x04, 0x07).rw(m_pio[0], FUNC(z80pio_device::read), FUNC(z80pio_device::write));
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map(0x08, 0x0b).rw(m_pio[1], FUNC(z80pio_device::read), FUNC(z80pio_device::write));
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map(0x0c, 0x0d).rw("usart", FUNC(i8251_device::read), FUNC(i8251_device::write));
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map(0x10, 0x10).rw("fdc", FUNC(wd2793_device::read), FUNC(wd2793_device::write));
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map(0x10, 0x13).rw("fdc", FUNC(wd2793_device::read), FUNC(wd2793_device::write));
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map(0x14, 0x14).w(FUNC(braiplus_state::bank_w));
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map(0x18, 0x18).w(FUNC(braiplus_state::unknown_w));
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}
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static INPUT_PORTS_START(braiplus)
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PORT_START("K0")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_SHIFT_1) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Ctrl") PORT_CODE(KEYCODE_LCONTROL)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Ctrl") PORT_CODE(KEYCODE_RCONTROL)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key A0")
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key A1")
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key A2")
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key A3")
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PORT_START("K1")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('1') PORT_CHAR('!') PORT_CODE(KEYCODE_1)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('2') PORT_CHAR('"') PORT_CODE(KEYCODE_2)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('3') PORT_CHAR('#') PORT_CODE(KEYCODE_3)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('4') PORT_CHAR('$') PORT_CODE(KEYCODE_4)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('5') PORT_CHAR('%') PORT_CODE(KEYCODE_5)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('6') PORT_CHAR('&') PORT_CODE(KEYCODE_6)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('7') PORT_CHAR('\'') PORT_CODE(KEYCODE_7)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('8') PORT_CHAR('(') PORT_CODE(KEYCODE_8)
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PORT_START("K2")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('q') PORT_CHAR('Q') PORT_CODE(KEYCODE_Q)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('w') PORT_CHAR('W') PORT_CODE(KEYCODE_W)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('e') PORT_CHAR('E') PORT_CODE(KEYCODE_E)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('r') PORT_CHAR('R') PORT_CODE(KEYCODE_R)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('t') PORT_CHAR('T') PORT_CODE(KEYCODE_T)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('y') PORT_CHAR('Y') PORT_CODE(KEYCODE_Y)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('u') PORT_CHAR('U') PORT_CODE(KEYCODE_U)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('i') PORT_CHAR('I') PORT_CODE(KEYCODE_I)
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PORT_START("K3")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('a') PORT_CHAR('A') PORT_CODE(KEYCODE_A)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('s') PORT_CHAR('S') PORT_CODE(KEYCODE_S)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('d') PORT_CHAR('D') PORT_CODE(KEYCODE_D)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('f') PORT_CHAR('F') PORT_CODE(KEYCODE_F)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('g') PORT_CHAR('G') PORT_CODE(KEYCODE_G)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('h') PORT_CHAR('H') PORT_CODE(KEYCODE_H)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('j') PORT_CHAR('J') PORT_CODE(KEYCODE_J)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('k') PORT_CHAR('K') PORT_CODE(KEYCODE_K)
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PORT_START("K4")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('n') PORT_CHAR('N') PORT_CODE(KEYCODE_N)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('x') PORT_CHAR('X') PORT_CODE(KEYCODE_X)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('c') PORT_CHAR('C') PORT_CODE(KEYCODE_C)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('v') PORT_CHAR('V') PORT_CODE(KEYCODE_V)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('b') PORT_CHAR('B') PORT_CODE(KEYCODE_B)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('z') PORT_CHAR('Z') PORT_CODE(KEYCODE_Z)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('m') PORT_CHAR('M') PORT_CODE(KEYCODE_M)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(',') PORT_CHAR('<') PORT_CODE(KEYCODE_COMMA)
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PORT_START("K5")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('p') PORT_CHAR('P') PORT_CODE(KEYCODE_P)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x00e9, 0x7b) PORT_CHAR(0x00c9, 0x5b) PORT_NAME("\xc3\x89") PORT_CODE(KEYCODE_COLON) // É
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x1b) PORT_CODE(KEYCODE_ESC)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x00e1, 0x60) PORT_CHAR(0x00c1, 0x40) PORT_NAME("\xc3\x81") PORT_CODE(KEYCODE_QUOTE) // Á
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(':') PORT_CHAR('*')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('0') PORT_CHAR('_') PORT_CODE(KEYCODE_0)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('9') PORT_CHAR(')') PORT_CODE(KEYCODE_9)
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PORT_START("K6")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(' ') PORT_CODE(KEYCODE_SPACE)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('o') PORT_CHAR('O') PORT_CODE(KEYCODE_O)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('l') PORT_CHAR('L') PORT_CODE(KEYCODE_L)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('.') PORT_CHAR('>') PORT_CODE(KEYCODE_STOP)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('?') PORT_CHAR('/') PORT_CODE(KEYCODE_SLASH)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('=') PORT_CHAR('-')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(';') PORT_CHAR('+')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x0d) PORT_NAME("CR") PORT_CODE(KEYCODE_ENTER)
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PORT_START("K7")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x00f3, 0x7e) PORT_CHAR(0x00d3, 0x5e) PORT_NAME("\xc3\x93") PORT_CODE(KEYCODE_CLOSEBRACE) // Ó
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x00f6, 0x7c) PORT_CHAR(0x00d6, 0x5c) PORT_NAME("\xc3\x96") PORT_CODE(KEYCODE_MINUS) // Ö
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key 5F")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(0x00fc, 0x7d) PORT_CHAR(0x00dc, 0x5d) PORT_NAME("\xc3\x9c") PORT_CODE(KEYCODE_EQUALS) // Ü
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key 05")
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key 08")
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key 18")
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key 04")
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PORT_START("K8")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E0")
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E1")
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E2")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E3")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E4")
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E5")
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E6")
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E7")
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PORT_START("K9")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E8")
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key E9")
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key EA")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key EB")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key EC")
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key ED")
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key EE")
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Key EF")
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INPUT_PORTS_END
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static const z80_daisy_config daisy_chain[] =
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@ -129,6 +235,12 @@ void braiplus_state::braiplus(machine_config &config)
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Z80PIO(config, m_pio[1], 4'000'000);
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m_pio[1]->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
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m_pio[1]->out_pa_callback().set(FUNC(braiplus_state::baud_rate_w));
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f4702_device &brg(F4702(config, "brg", 2.4576_MHz_XTAL));
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brg.s_callback().set(FUNC(braiplus_state::baud_rate_r));
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brg.z_callback().set("usart", FUNC(i8251_device::write_txc));
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brg.z_callback().append("usart", FUNC(i8251_device::write_rxc));
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i8251_device &usart(I8251(config, "usart", 2'000'000));
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usart.rxrdy_handler().set(m_pio[1], FUNC(z80pio_device::pa3_w));
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