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casio/fp200.cpp: cleanup keyboard i/f

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This commit is contained in:
angelosa 2024-06-28 18:59:35 +02:00
parent 1db8f70e30
commit 59e807744f
1 changed files with 26 additions and 22 deletions
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48
src/mame/casio/fp200.cpp
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@ -5,8 +5,8 @@
FP-200 (c) 1982 Casio
TODO:
- Identify LCDC type, move to device (custom inside the gate array);
- Confirm not having any sound capaibilities;
- Identify LCDC, move to devices
(2x MSM6216-01GS-1K + 1x MSM6215-01GS-K glued together by the gate array);
- backup RAM;
- cassette i/f;
- FDC (requires test program that Service manual mentions);
@ -37,6 +37,7 @@ public:
, m_maincpu(*this, "maincpu")
, m_rtc(*this, "rtc")
, m_ioview(*this, "ioview")
, m_key(*this, "KEY%X", 0U)
{ }
void fp200(machine_config &config);
@ -48,6 +49,7 @@ private:
required_device<i8085a_cpu_device> m_maincpu;
required_device<rp5c01_device> m_rtc;
memory_view m_ioview;
required_ioport_array<16> m_key;
uint8_t *m_chargen = nullptr;
uint8_t m_keyb_matrix = 0;
@ -324,29 +326,13 @@ void fp200_state::lcd_w(offs_t offset, uint8_t data)
uint8_t fp200_state::keyb_r(offs_t offset)
{
const char *const keynames[16] = { "KEY0", "KEY1", "KEY2", "KEY3",
"KEY4", "KEY5", "KEY6", "KEY7",
"KEY8", "KEY9", "UNUSED", "UNUSED",
"UNUSED", "UNUSED", "UNUSED", "UNUSED"};
uint8_t res;
if(offset == 0)
res = ioport(keynames[m_keyb_matrix])->read();
else
{
logerror("Unknown keyboard offset read access %02x\n",offset + 0x20);
res = 0;
}
const uint8_t res = m_key[m_keyb_matrix & 0xf]->read();
return res;
}
void fp200_state::keyb_w(offs_t offset, uint8_t data)
{
if(offset == 1)
m_keyb_matrix = data & 0xf;
else
logerror("Unknown keyboard offset write access %02x %02x\n",offset + 0x20,data);
m_keyb_matrix = data & 0xf;
}
void fp200_state::main_map(address_map &map)
@ -370,7 +356,8 @@ void fp200_state::main_io(address_map &map)
m_ioview[1](0x00, 0x0f).rw(FUNC(fp200_state::lcd_r), FUNC(fp200_state::lcd_w));
// m_ioview[1](0x10, 0x10) I/O control (w/o), D1 selects CMT or RS-232C
// m_ioview[1](0x11, 0x11) I/O control (w/o), uPD65010G gate array control
m_ioview[1](0x20, 0x2f).rw(FUNC(fp200_state::keyb_r), FUNC(fp200_state::keyb_w));
m_ioview[1](0x20, 0x20).r(FUNC(fp200_state::keyb_r));
m_ioview[1](0x21, 0x21).w(FUNC(fp200_state::keyb_w));
// m_ioview[1](0x40, 0x4f) CMT & RS-232C control
// m_ioview[1](0x80, 0x8f) [Centronics] printer
}
@ -381,7 +368,6 @@ INPUT_CHANGED_MEMBER(fp200_state::keyb_irq)
m_maincpu->set_input_line(I8085_RST75_LINE, (newval) ? ASSERT_LINE : CLEAR_LINE);
}
// TODO: implement remote SW
static INPUT_PORTS_START( fp200 )
PORT_START("KEY0")
PORT_BIT( 0x0f, IP_ACTIVE_HIGH, IPT_UNUSED )
@ -471,6 +457,24 @@ static INPUT_PORTS_START( fp200 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, fp200_state,keyb_irq, 0)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, fp200_state,keyb_irq, 0)
PORT_START("KEYA")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_START("KEYB")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("KEYC")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("KEYD")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("KEYE")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("KEYF")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("KEYMOD")
PORT_BIT( 0x01f, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CETL") PORT_TOGGLE