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https://github.com/holub/mame
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new NOT_WORKING machine: Casio LD-50 (#9203)
New machines marked as NOT_WORKING ---------------------------------- Casio LD-50 [Devin Acker]
This commit is contained in:
Devin Acker
GitHub
parent
3d2a632bba
commit
b566197832
@ -2044,6 +2044,7 @@ files {
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MAME_DIR .. "src/mame/drivers/ctk2000.cpp",
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MAME_DIR .. "src/mame/drivers/ctk551.cpp",
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MAME_DIR .. "src/mame/drivers/ht6000.cpp",
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MAME_DIR .. "src/mame/drivers/ld50.cpp",
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MAME_DIR .. "src/mame/drivers/pb1000.cpp",
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MAME_DIR .. "src/mame/drivers/pv1000.cpp",
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MAME_DIR .. "src/mame/drivers/pv2000.cpp",
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322
src/mame/drivers/ld50.cpp
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322
src/mame/drivers/ld50.cpp
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@ -0,0 +1,322 @@
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// license:BSD-3-Clause
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// copyright-holders:Devin Acker
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/*
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Casio LD-50 electronic drums
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Unlike most Casio instruments, this is either rebranded or outsourced.
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It's unclear who developed it, or if it was ever sold under other brands,
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but the data ROM mentions "SharpWin".
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Main board:
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bottom left: "DIGITAL DRUM [LD-50] DATE: 2001/07/20"
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bottom right: "LD50 Main PCB Rev.1"
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IC1: Burr-Brown PCM1717E DAC
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IC2: unknown SOIC8 ("2429 170")
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IC4: Philips P87C52UBAA MCU
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IC5: AMD AM29F040 ROM
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IC7/8/9/10: 4x 74HC374
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IC11: unknown COB (letter "B" handwritten on epoxy)
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IC12: Dream SAM9793
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XTAL1: 9.6MHz (for SAM9793)
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XTAL2: 12MHz (for MCU)
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A 10-pin header at the upper left connects to the input matrix and
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a small plastic LCD assembly on the other side of the board.
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Most of the sound is provided by the SAM9793, which is just a MIDI
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synth on a chip that takes in serial MIDI input and outputs I2S.
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The four sound effect pads also trigger PCM samples separately,
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possibly via the black blob at IC11.
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The external ROM contains the demo and rhythms, which are all stored
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as standard type 0 MIDI files.
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To activate the test mode, hold "Rhythm" and "Assign" when powering on.
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From here, hitting the drum pads will display time/velocity measurements.
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TODO:
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- drum LEDs
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- LCD artwork
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- clickable layout?
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- possibly connect a MIDI out port in lieu of the SAM9793
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(MCS51 core needs proper serial output first)
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- dump/emulate the other PCM device somehow
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*/
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#include "emu.h"
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#include "bus/midi/midioutport.h"
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#include "cpu/mcs51/mcs51.h"
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#include "video/hd44780.h"
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#include "emupal.h"
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#include "screen.h"
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namespace {
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class ld50_state : public driver_device
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{
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public:
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ld50_state(machine_config const &mconfig, device_type type, char const *tag)
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_lcdc(*this, "lcdc")
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, m_datarom(*this, "datarom")
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, m_inputs(*this, "IN%u", 0)
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, m_pads(*this, "PADS")
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, m_dial(*this, "DIAL")
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{
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}
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void ld50(machine_config &config);
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DECLARE_CUSTOM_INPUT_MEMBER(dial_r);
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private:
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u8 port0_r();
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void port0_w(u8 data);
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u8 port1_r();
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void port2_w(u8 data);
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void port3_w(u8 data);
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virtual void driver_start() override;
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virtual void driver_reset() override;
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HD44780_PIXEL_UPDATE(lcd_update);
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void palette_init(palette_device &palette);
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required_device<mcs51_cpu_device> m_maincpu;
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required_device<hd44780_device> m_lcdc;
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required_memory_region m_datarom;
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required_ioport_array<5> m_inputs;
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required_ioport m_pads;
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required_ioport m_dial;
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u8 m_port[4];
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u32 m_rom_addr;
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u16 m_shift_data;
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};
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HD44780_PIXEL_UPDATE(ld50_state::lcd_update)
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{
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if (x < 6 && y < 8 && line < 2 && pos < 8)
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bitmap.pix(y, line * 48 + pos * 6 + x) = state;
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}
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void ld50_state::palette_init(palette_device &palette)
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{
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palette.set_pen_color(0, rgb_t(255, 255, 255));
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palette.set_pen_color(1, rgb_t(0, 0, 0));
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}
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u8 ld50_state::port0_r()
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{
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u8 data = 0xf0 | (m_lcdc->db_r() >> 4);
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if (!BIT(m_port[2], 3))
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data &= m_datarom->base()[m_rom_addr & 0x7ffff];
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return data;
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}
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void ld50_state::port0_w(u8 data)
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{
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m_lcdc->db_w(data << 4);
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m_port[0] = data;
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}
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u8 ld50_state::port1_r()
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{
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/*
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bits 0-3: drum pads (active high)
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bits 4-7: multiplexed inputs (active low)
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The drum pads are read during the timer 0 interrupt.
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Note velocity is based on the number of timer intervals that the pad remains pressed.
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*/
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return (m_port[1] & 0xf0) | m_pads->read();
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}
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void ld50_state::port2_w(u8 data)
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{
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/*
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bit 0: ?
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bit 1: ?
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bit 2: ?
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bit 3: ROM output enable
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bit 4: ROM address low byte latch
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bit 5: ROM address mid byte latch
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bit 6: ROM address hi byte & input latch
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bit 7: LCD control latch
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*/
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const u8 set = data & ~m_port[2];
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m_port[2] = data;
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if (BIT(set, 4))
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{
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m_rom_addr = (m_rom_addr & 0x7ff00) | m_port[0];
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}
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if (BIT(set, 5))
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{
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m_rom_addr = (m_rom_addr & 0x700ff) | (m_port[0] << 8);
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}
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if (BIT(set, 6))
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{
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m_rom_addr = (m_rom_addr & 0x0ffff) | ((m_port[0] & 0xe0) << 11);
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m_port[1] |= 0xf0;
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for (int i = 0; i < 5; i++)
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{
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if (!BIT(m_port[0], i))
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m_port[1] &= (m_inputs[i]->read() << 4);
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}
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}
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if (BIT(set, 7))
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{
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m_lcdc->rw_w(BIT(m_port[0], 6));
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m_lcdc->rs_w(BIT(m_port[0], 7));
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}
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}
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void ld50_state::port3_w(u8 data)
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{
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/*
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bit 0: LCD enable
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bit 1: MIDI Tx (TODO)
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bit 2: ?
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bit 3: trigger sound effect
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bit 4: ?
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bit 5: shift register data
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bit 6: shift register clock
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bit 7: ?
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The LD-50 transmits MIDI both through the UART registers and manually via port 3.
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Demo/rhythm playback uses the UART, while drum pads, effect values, etc. are
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bit-banged through the port instead (why?)
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*/
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const u8 set = data & ~m_port[3];
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m_port[3] = data;
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m_lcdc->e_w(BIT(data, 0));
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if (BIT(set, 3))
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{
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logerror("play sound effect %u\n", m_shift_data & 0x1f);
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}
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if (BIT(set, 6))
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{
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m_shift_data <<= 1;
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m_shift_data |= BIT(data, 5);
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}
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if (BIT(set, 7))
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{
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logerror("unknown serial cmd (data = 0x%4x)\n", m_shift_data);
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}
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}
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CUSTOM_INPUT_MEMBER(ld50_state::dial_r)
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{
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// return the dial position as a 2-bit gray code
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const u8 val = m_dial->read();
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return (val >> 6) ^ (val >> 7);
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}
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void ld50_state::driver_start()
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{
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save_item(NAME(m_port));
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save_item(NAME(m_rom_addr));
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save_item(NAME(m_shift_data));
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}
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void ld50_state::driver_reset()
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{
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memset(m_port, 0xff, sizeof m_port);
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m_rom_addr = 0;
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m_shift_data = 0;
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}
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void ld50_state::ld50(machine_config &config)
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{
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// CPU
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I87C52(config, m_maincpu, 12_MHz_XTAL);
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m_maincpu->port_in_cb<0>().set(FUNC(ld50_state::port0_r));
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m_maincpu->port_out_cb<0>().set(FUNC(ld50_state::port0_w));
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m_maincpu->port_in_cb<1>().set(FUNC(ld50_state::port1_r));
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m_maincpu->port_out_cb<2>().set(FUNC(ld50_state::port2_w));
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m_maincpu->port_out_cb<3>().set(FUNC(ld50_state::port3_w));
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// LCD
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HD44780(config, m_lcdc, 0);
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m_lcdc->set_lcd_size(2, 8);
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m_lcdc->set_pixel_update_cb(FUNC(ld50_state::lcd_update));
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// screen (for testing only)
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// TODO: the actual LCD with custom segments
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
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screen.set_refresh_hz(60);
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screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
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screen.set_screen_update("lcdc", FUNC(hd44780_device::screen_update));
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screen.set_size(6 * 16, 8);
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screen.set_visarea_full();
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screen.set_palette("palette");
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PALETTE(config, "palette", FUNC(ld50_state::palette_init), 2);
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}
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INPUT_PORTS_START(ld50)
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PORT_START("PADS")
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PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("Drum Pad 4")
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PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Drum Pad 3")
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PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Drum Pad 2")
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PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Drum Pad 1")
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PORT_START("DIAL")
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PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(50) PORT_KEYDELTA(50) PORT_REVERSE
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PORT_START("IN0")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON8 ) PORT_NAME("SE Pad 4")
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON7 ) PORT_NAME("SE Pad 3")
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_NAME("SE Pad 2")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_NAME("SE Pad 1")
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PORT_START("IN1")
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PORT_BIT( 0x03, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(ld50_state, dial_r)
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Effect")
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PORT_START("IN2")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_EQUALS) PORT_NAME("Assign")
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_MINUS) PORT_NAME("Drum Set")
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_0) PORT_NAME("SE Set")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_9) PORT_NAME("Rhythm")
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PORT_START("IN3")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_8) PORT_NAME("Play Level")
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_7) PORT_NAME("Light")
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_6) PORT_NAME("Tempo")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_5) PORT_NAME("Start/Stop")
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PORT_START("IN4")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_4) PORT_NAME("Synchro Start")
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_3) PORT_NAME("Demo")
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_2) PORT_NAME("Rhythm Vol.")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_1) PORT_NAME("Main Vol.")
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INPUT_PORTS_END
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ROM_START(ld50)
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ROM_REGION(0x2000, "maincpu", 0)
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ROM_LOAD("87c52.ic4", 0x0000, 0x2000, CRC(126108cc) SHA1(cb8d7359628f8e519862cec73e38078275c3bd48))
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ROM_REGION(0x80000, "datarom", 0)
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ROM_LOAD("ld50.ic5", 0x00000, 0x80000, CRC(acaee847) SHA1(7235aefd72260b6d9d1f652c643022515a880781))
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ROM_END
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} // anonymous namespace
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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SYST( 2002, ld50, 0, 0, ld50, ld50, ld50_state, empty_init, "Casio", "LD-50", MACHINE_NO_SOUND | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
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@ -19968,6 +19968,9 @@ lckydrawa // (c) 1979 Mirco
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@source:lcmate2.cpp
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lcmate2 //
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@source:ld50.cpp
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ld50 //
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@source:leapfrog_iquest.cpp
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iquest
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ttwistfb
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@ -537,6 +537,7 @@ lb186.cpp
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lbpc.cpp
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lc80.cpp
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lcmate2.cpp
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ld50.cpp
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leapfrog_iquest.cpp
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leapfrog_leappad.cpp
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leapfrog_leapster_explorer.cpp
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