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Diffstat (limited to 'src/mame/drivers/ckingbase.cpp')
-rw-r--r-- | src/mame/drivers/ckingbase.cpp | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/mame/drivers/ckingbase.cpp b/src/mame/drivers/ckingbase.cpp new file mode 100644 index 00000000000..65dd6b41e90 --- /dev/null +++ b/src/mame/drivers/ckingbase.cpp @@ -0,0 +1,222 @@ +// license:BSD-3-Clause +// copyright-holders:hap +/****************************************************************************** + + Chess King chess computer driver base class + + NOTE: MAME doesn't include a generalized implementation for boardpieces yet, + greatly affecting user playability of emulated electronic board games. + As workaround for the chess games, use an external chess GUI on the side, + such as Arena(in editmode). + +******************************************************************************/ + +#include "emu.h" +#include "includes/ckingbase.h" + + +// machine start/reset + +void ckingbase_state::machine_start() +{ + // resolve handlers + m_out_x.resolve(); + m_out_a.resolve(); + m_out_digit.resolve(); + + // zerofill + memset(m_display_state, 0, sizeof(m_display_state)); + memset(m_display_decay, 0, sizeof(m_display_decay)); + memset(m_display_segmask, 0, sizeof(m_display_segmask)); + + m_inp_mux = 0; + m_led_select = 0; + m_led_data = 0; + + // register for savestates + save_item(NAME(m_display_maxy)); + save_item(NAME(m_display_maxx)); + save_item(NAME(m_display_wait)); + + save_item(NAME(m_display_state)); + save_item(NAME(m_display_decay)); + save_item(NAME(m_display_segmask)); + + save_item(NAME(m_inp_mux)); + save_item(NAME(m_led_select)); + save_item(NAME(m_led_data)); +} + +void ckingbase_state::machine_reset() +{ +} + + + +/*************************************************************************** + + Helper Functions + +***************************************************************************/ + +// The device may strobe the outputs very fast, it is unnoticeable to the user. +// To prevent flickering here, we need to simulate a decay. + +void ckingbase_state::display_update() +{ + for (int y = 0; y < m_display_maxy; y++) + { + u32 active_state = 0; + + for (int x = 0; x <= m_display_maxx; x++) + { + // turn on powered segments + if (m_display_state[y] >> x & 1) + m_display_decay[y][x] = m_display_wait; + + // determine active state + u32 ds = (m_display_decay[y][x] != 0) ? 1 : 0; + active_state |= (ds << x); + + // output to y.x, or y.a when always-on + if (x != m_display_maxx) + m_out_x[y][x] = ds; + else + m_out_a[y] = ds; + } + + // output to digity + if (m_display_segmask[y] != 0) + m_out_digit[y] = active_state & m_display_segmask[y]; + } +} + +TIMER_DEVICE_CALLBACK_MEMBER(ckingbase_state::display_decay_tick) +{ + // slowly turn off unpowered segments + for (int y = 0; y < m_display_maxy; y++) + for (int x = 0; x <= m_display_maxx; x++) + if (m_display_decay[y][x] != 0) + m_display_decay[y][x]--; + + display_update(); +} + +void ckingbase_state::set_display_size(int maxx, int maxy) +{ + m_display_maxx = maxx; + m_display_maxy = maxy; +} + +void ckingbase_state::display_matrix(int maxx, int maxy, u32 setx, u32 sety, bool update) +{ + set_display_size(maxx, maxy); + + // update current state + u32 mask = (1 << maxx) - 1; + for (int y = 0; y < maxy; y++) + m_display_state[y] = (sety >> y & 1) ? ((setx & mask) | (1 << maxx)) : 0; + + if (update) + display_update(); +} + + +// generic input handlers + +u16 ckingbase_state::read_inputs(int columns) +{ + u16 ret = 0; + + // read selected input rows + for (int i = 0; i < columns; i++) + if (m_inp_mux >> i & 1) + ret |= m_inp_matrix[i]->read(); + + return ret; +} + + +// chessboard generic inputs + +INPUT_PORTS_START( cking_cb_buttons ) + PORT_START("IN.0") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + + PORT_START("IN.1") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + + PORT_START("IN.2") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + + PORT_START("IN.3") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + + PORT_START("IN.4") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + + PORT_START("IN.5") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + + PORT_START("IN.6") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + + PORT_START("IN.7") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board Sensor") +INPUT_PORTS_END |