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-rw-r--r--src/mame/drivers/roland_cm32p.cpp607
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diff --git a/src/mame/drivers/roland_cm32p.cpp b/src/mame/drivers/roland_cm32p.cpp
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-// license:BSD-3-Clause
-// copyright-holders:Valley Bell
-/*************************************************************************************************
-
- Roland CM-32P driver
-
- Driver by Valley Bell
-
- Thanks to KitsuWhooa for the PCB layout diagram and part list.
-
-
-Notes:
-- When booting, it does a basic check by writing values 0..0xFF to 0x108A.
- It then expects (value & 0x03) to be read back from 0x1080 and (value) to be read back from 0x1081/0x1082.
- The routine for doing the check begins at 0x4686.
- Succeeding means it ends up at 0x4801.
-- When in test mode, the firmware gets stuck in the loop at 0xBB06, waiting for Interrupt #5 (calls 0x4014) to fire.
- It gets there by calling function 0xBBBB, which writes text (address w@0x40, num characters b@0x43) to the LCD screen.
- This can be worked around by setting b@BB2D = 03.
-- The firmware gets also stuck in the loop at 0x7D70, waiting for Interrupt #8 (calls 0x4020).
- This might be related to finding the best free voice?
- You can exit the loop by setting b@7D80 = 00.
-- Test Mode shows the results of 4 checks:
- 1. SRAM check
- 2. MIDI IN/OUT check
- 3. PCM ROM and card check
- 4. RCC-CPU check
- Errors in check 2 and 3 are "not abnormal".
- In order to make check 2 pass successfully, you need to connect MIDI Out with MIDI In, creating a loopback.
- Check 3 requires the SN-U110-04 PCM card ("Electric Grand & Clavi") to be inserted in order to succeed.
-- In order to access the built-in PCM ROM (IC18), the CPU asks the sound chip to read offsets 0x000000 .. 0x07FFFF.
- The PCM card is accessed via offsets 0x080000 .. 0x0FFFFF.
- The additional PCM ROMs are mapped to 0x100000 .. 0x17FFFF (IC19) and 0x200000 .. 0x27FFFF according to the sample table in IC18.
-- The sound chip has 32 voices. Voice 0 is reserved by the firmware for reading data from the PCM ROM.
- The firmware allocates voices from back to front, i.e. voice 31 first.
-- The "PCM sound chip" itself doesn't seem to support panning.
- Maybe it just has 6 outputs (one for each part, like the U-110) and an additional DSP does the rest.
-
-
-TODO:
-- figure out how "freeing a voice" works - right now the firmware gets stuck when playing the 32th note.
-- add PCM card support
-
-
-PCB Layout
-----------
-
-PCM BOARD CM-32P ASSY 79554310 00
-
-| OUTPUT | PHONES | INPUT (MT-32) | MIDI IN | MIDI THROUGH | DC 9V |
-|----------------------------------------------------------------------|
-| JK2 JK4 JK3 JKLI JKRI CN4 JK1I JK1T JK5 |
-| |
-| SW1 |
-| || IC2 IC1 |
-| IC35 IC33 IC34 || IC31 IC30 CN0 |
-| CN3 ||<--IC32 |
-| |----| |----| |----| |
-| | | | | | | |
-| IC22 || IC24 |IC10| |IC9 | | | |
-| || IC25 IC4 | | | | | | |
-| ||<--IC23 |SRAM| |ROM | | | |
-| |----| |----| |IC3 | X1 |
-| |----| | | |
-| | IC | |------| | | |
-| | 17 | | IC16 | IC12 | | |
-| |----| |------| X2 |----| |
-| |------| IC13 |
-| IC6 |----||----||----| | IC15 | |
-| |-||-| | || || | |------| IC14 |------| |
-| | || | |IC20||IC19||IC18| | IC8 | |
-| |-||-| | || || | |------| |
-| IC7 |SMPL||SMPL||SMPL| |------------------| |
-| |ROM ||ROM ||ROM | | CN5 | |
-| |----||----||----| | | CN1 |
-|------------------------------|------------------|--------------------|
- | |
-
-Parts:
-
-(All parts THT unless otherwise noted.)
-|-----------------------------------------------------------------------|
-| JK1I, JK1T | DIN 5 |
-| JK2, JK4, JKRI, JKLI | 1/4 Mono Jack |
-| JK3 | 1/4 Stereo Jack |
-| JK5 | DC Barrel Jack (Centre Negative) |
-| SW1 | SW PCB DPDT |
-| IC1 | 74HC04AP |
-| IC2 | TLP552 |
-| IC3 | P8098 (CPU) |
-| IC4 | M51953AL |
-| IC6, IC7 | M5M4464AP-12 |
-| IC8 | Roland R15239111 / M60012-0141FP (QFP) |
-| IC9 | AM27C512-150DC |
-| IC10 | TC5564APL-15 |
-| IC12 | 74HC00AP |
-| IC13 | 74HC02AP |
-| IC14 | 74HC32AP |
-| IC15 | Roland R15229894 / MB87419 (QFP) |
-| IC16 | Roland R15229895 / MB87420 (QFP) |
-| IC17 | Roland P15239126 / 23140-007 (QFP) |
-| IC18 | Roland R15179970 / MB834000A-20 3B1 |
-| IC19 | Roland R15179971 / MB834000A-20 3B2 |
-| IC20 | Roland R15179972 / HN62304BPE98 |
-| IC22 | PCM56P |
-| IC23 | M5238L |
-| IC24 | HD14052BP |
-| IC25 | NJM2082D |
-| IC30, IC31, IC33, IC34, IC35 | NJM4565DD |
-| IC32 | M5207L01 |
-| CN0 | 7805A |
-| CN1 | LED PCB |
-| CN3 | Volume Control PCB |
-| CN4 | unpopulated |
-| CN5 | PCM Card Slot |
-| X1 | Crystal 12MHz |
-| X2 | Crystal 32.768MHz |
-|-----------------------------------------------------------------------|
-
-
-PCM ROM Tables
---------------
-Sample Table (address: 0x00100)
-------------
-Pos Len Description
-00 02 start offset, bits 0-15 (Little Endian)
-02 01 start offset, bits 16-18 (bits 0-2)
- PCM card select (bit 3): set for sounds on PCM cards
- ROM bank (bits 4-5):
- 0 = IC18
- 1 = IC19
- 2 = IC20
- loop mode (bits 6-7):
- 0 = normal loop
- 1 = no loop
- 2 = ping-pong (forwards, backwards, forwards, backwards, ...)
-03 02 last sample (sample length = last sample + 1)
-05 02 loop length (loop start = sample length - loop length)
-07 01 ??
-08 01 reference note (when played back at 32000 Hz)
-09 01 ??
--> 0Ah bytes per entry
-
-Tone List (address: 0x01000)
----------
-Pos Len Description
-00 0A sample name
-0A 01 tone type
- 00 - single
- 01 - dual
- 02 - detune
- 03 - velocity mix
- 04 - velocity switch
- 05..07 - invalid
- 08..0F/10..17/.../78..7F - same as 00..07
- 80..FF - rhythm?
-0B 01 ??
-0C 02 ??
-0E 01 ??
-0F 01 ??
-10 0B some note IDs (padded with FF)
-1B 0C sample IDs (always one more than number of note IDs, padded with FF)
-27 09 ??
-30 0B some note IDs (padded with FF)
-3B 0C sample IDs (always one more than number of note IDs, padded with FF)
-47 09 ??
--> 50h bytes per entry
-
-Note: Section 30..4F is only used with tone types 01, 03, 04
-
-
-CM-32P Firmware Work RAM Layout
--------------------------------
-2100..22FF - MIDI data receive buffer
-
-2344..23C1 - Part 1..6 "Patch temporary area" (see manual page 21, 0x15 bytes per partial)
-23C4..23D4 - "System area" settings (see manual page 22, master volume, reverb setting, channel assignments)
- 23CE-23D3 - Part 1..6 MIDI channel
-23D6..25B5 - Part 1..6 instrument data (0x50 bytes per partial, from PCM ROM at 0x1000/0x1050/0x10A0/...)
-25B8..2B57 - Part 1..6 sample table data (0xF0 bytes per partial, from PCM ROM at 0x0100/0x010A/0x0114/...)
-
-34DC..34E1 - Part 1..6 Modulation (CC #1, initialized with 0)
-34E2..34E7 - Part 1..6 Pitch Bend LSB (initialized with 0)
-34E8..34ED - Part 1..6 Pitch Bend MSB (initialized with 64)
-34EE..34F3 - Part 1..6 Expression setting (CC #11, initialized with 100)
-34F4..34F9 - Part 1..6 Sustain setting (CC #64, initialized with 0)
-34FA..34FF - Part 1..6 unused (initialized with 0)
-3500..3505 - Part 1..6 RPN LSB (CC #98, initialized with 0xFF)
-3506..350B - Part 1..6 RPN MSB (CC #99, initialized with 0xFF)
-350C..3511 - Part 1..6 NRPN received (initialized with 0xFF, set to 0 when RPN LSB/MSB is received, set to 0xFF when NRPN is received)
-3512..3517 - Part 1..6 ?? (initialized with 0)
-3518..351D - Part 1..6 Instrument setting
-351E - Reverb Mode
-351F - Reverb Time
-3521 - ?? (initialized with 1)
-352A..3889 - voice memory (32 bytes per block)
- 35AA..35C9 - some jump table index for interrupt #8
-38DE..394D - more voice memory (32 bytes per block)
-
-397E..3??? - state of playing notes
- 3986 - current panning volume, left speaker (00..1F)
- 39A6 - current panning volume, right speaker (00..1F)
- 39C6 - target panning volume, left speaker (00..1F)
- 39E6 - target panning volume, right speaker (00..1F)
-
-3D7C..3E84 - SysEx receive data buffer
-
-Some routine locations
-----------------------
-0x4014 LCD related interrupt handler
-0x401C serial input (MIDI data) interrupt handler
-0x4020 some interrupt handler required while playing notes
-0x45CB Initialization (memory clear + checks), external memory is checked from 0x4679 on
-0x5024 decide whether or not Test Mode is entered (normal boot == jump to 0x502A)
-0x50F5 MIDI handling code
-0x65E8 PCM ROM instrument check
-0x6650 PCM card instrument check (Note: assumes that the SN-U110-04 PCM card is inserted)
-0x6EA4 play a note (parameters: 0040 - part, 0041 = note pitch, 0042 - velocity)
-0xB027 load instrument data from PCM ROM (writes to 23D6 + 50*i)
-0xB12B load instrument sample data from PCM ROM (reads sample IDs from 23D6+1B + 50*i, writes to 25B8 + F0*i)
-0xB1A0 load secondary instrument sample data from PCM ROM (reads sample IDs from 23D6+3B + 50h*i, writes to 25B8+50 + F0*i)
-0xB1E8 load 1 sample table entry from PCM ROM
-0xB316 PCM ROM signature check
-0xBBBB write text to LCD
-
-*/
-
-#include "emu.h"
-#include "cpu/mcs96/i8x9x.h"
-#include "machine/ram.h"
-#include "machine/timer.h"
-#include "sound/rolandpcm.h"
-#include "video/msm6222b.h"
-#include "emupal.h"
-#include "screen.h"
-#include "speaker.h"
-
-
-// unscramble address: ROM dump offset -> proper (descrambled) offset
-#define UNSCRAMBLE_ADDRESS(_offset) \
- bitswap<19>(_offset,18,17,15,14,16,12,11, 7, 9,13,10, 8, 3, 2, 1, 6, 4, 5, 0)
-// scramble address: proper offset -> ROM dump offset
-#define SCRAMBLE_ADDRESS(_offset) \
- bitswap<19>(_offset,18,17,14,16,15, 9,13,12, 8,10, 7,11, 3, 1, 2, 6, 5, 4, 0)
-
-#define UNSCRAMBLE_DATA(_data) \
- bitswap<8>(_data,1,2,7,3,5,0,4,6)
-
-
-static INPUT_PORTS_START( cm32p )
- PORT_START("A7")
- PORT_BIT(0x03ff, 0x0000, IPT_DIAL) PORT_NAME("Knob") PORT_SENSITIVITY(50) PORT_KEYDELTA(8) PORT_CODE_DEC(KEYCODE_DOWN) PORT_CODE_INC(KEYCODE_UP)
-
- PORT_START("SERVICE") // connected to Port 0 of the P8098 CPU.
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test Switch") PORT_TOGGLE PORT_CODE(KEYCODE_F2) // SW A (checked during boot)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: Check/Tune") PORT_CODE(KEYCODE_B) // SW B
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("PCM card inserted") PORT_TOGGLE PORT_CODE(KEYCODE_C)
-
- PORT_START("SW") // test switches, accessed by reading from address 0x1300
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: MSB Adj.") PORT_CODE(KEYCODE_1) // SW 1
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: THD Check") PORT_CODE(KEYCODE_2) // SW 2
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: PCM Out: String 1") PORT_CODE(KEYCODE_3) // SW 3
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: PCM Out: Sax 1") PORT_CODE(KEYCODE_4) // SW 4
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: PCM + Long Reverb") PORT_CODE(KEYCODE_5) // SW 5
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: PCM + Short Reverb") PORT_CODE(KEYCODE_6) // SW 6
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: VCA Down Check") PORT_CODE(KEYCODE_7) // SW 7
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME("Test: VCA Up Check") PORT_CODE(KEYCODE_8) // SW 8
-INPUT_PORTS_END
-
-class cm32p_state : public driver_device
-{
-public:
- cm32p_state(const machine_config &mconfig, device_type type, const char *tag);
-
- void cm32p(machine_config &config);
-
- void init_cm32p();
-
-protected:
- virtual void machine_start() override;
- virtual void machine_reset() override;
-
-private:
- required_device<i8x9x_device> cpu;
- required_device<mb87419_mb87420_device> pcm;
- required_device<msm6222b_device> lcd;
- required_device<timer_device> midi_timer;
- required_device<ram_device> some_ram;
- required_ioport test_sw;
- required_ioport service_port;
-
- void mt32_palette(palette_device &palette) const;
-
- uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
- void midi_w(u16 data);
-
- u8 lcd_ctrl_r();
- void lcd_ctrl_w(u8 data);
- void lcd_data_w(u8 data);
- u16 port0_r();
- u8 pcmrom_r(offs_t offset);
- u8 dsp_io_r(offs_t offset);
- void dsp_io_w(offs_t offset, u8 data);
- u8 snd_io_r(offs_t offset);
- void snd_io_w(offs_t offset, u8 data);
- u8 test_sw_r();
-
- TIMER_DEVICE_CALLBACK_MEMBER(midi_timer_cb);
- TIMER_DEVICE_CALLBACK_MEMBER(samples_timer_cb);
-
- void cm32p_map(address_map &map);
-
- u8 midi;
- int midi_pos;
- u8 sound_io_buffer[0x100];
- u8 dsp_io_buffer[0x80];
-};
-
-cm32p_state::cm32p_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , cpu(*this, "maincpu")
- , pcm(*this, "pcm")
- , lcd(*this, "lcd")
- , midi_timer(*this, "midi_timer")
- , some_ram(*this, "some_ram")
- , test_sw(*this, "SW")
- , service_port(*this, "SERVICE")
-{
-}
-
-
-// screen update function from Roland D-110
-uint32_t cm32p_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- u16 sy=0;
- u8 const *const data = lcd->render();
- bitmap.fill(0);
-
- for (u8 y = 0; y < 2; y++)
- {
- for (u8 ra = 0; ra < 9; ra++)
- {
- u16 *p = &bitmap.pix(sy++);
-
- for (u16 x = 0; x < 16; x++)
- {
- u8 gfx = 0;
- if (ra < 8)
- gfx = data[x*16 + y*640 + ra];
-
- *p++ = BIT(gfx, 4);
- *p++ = BIT(gfx, 3);
- *p++ = BIT(gfx, 2);
- *p++ = BIT(gfx, 1);
- *p++ = BIT(gfx, 0);
- *p++ = 0;
- }
- }
- }
- return 0;
-}
-
-void cm32p_state::machine_start()
-{
- u8 *rom = memregion("maincpu")->base();
-
- // TODO: The IC8 gate array has an "LCD INT" line that needs to be emulated. Then, the hack can be removed.
- // Note: The hack is not necessary when *not* using test mode.
- rom[0xBB2D] = 0x03; // hack to make test mode not freeze when displaying the LCD text
-
- // TODO: remove this hack
- rom[0x7D80] = 0x00; // hack to exit some loop waiting for interrupt #8
-}
-
-void cm32p_state::machine_reset()
-{
- midi_timer->adjust(attotime::from_hz(1));
- midi_pos = 0;
-}
-
-void cm32p_state::lcd_ctrl_w(u8 data)
-{
- lcd->control_w(data);
-}
-
-u8 cm32p_state::lcd_ctrl_r()
-{
- // The CM-64 service manual lists "D-110 LCD UNIT" for using PCM test mode, so I assume it works like that.
- // However, the CM-32P firmware doesn't seem to ever read the status.
- return lcd->control_r() >> 7;
-}
-
-void cm32p_state::lcd_data_w(u8 data)
-{
- lcd->data_w(data);
-}
-
-void cm32p_state::midi_w(u16 data)
-{
- logerror("midi_out %02x\n", data);
- midi = data;
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(cm32p_state::midi_timer_cb)
-{
- const static u8 midi_data[3] = { 0x9a, 0x40, 0x7f };
- midi = midi_data[midi_pos++];
- logerror("midi_in %02x\n", midi);
- cpu->serial_w(midi);
- if(midi_pos < sizeof(midi_data))
- midi_timer->adjust(attotime::from_hz(1250));
-}
-
-u16 cm32p_state::port0_r()
-{
- return service_port->read();
-}
-
-u8 cm32p_state::pcmrom_r(offs_t offset)
-{
- const u8* pcm_rom = memregion("pcm")->base();
- return pcm_rom[offset];
-}
-
-u8 cm32p_state::dsp_io_r(offs_t offset)
-{
- return dsp_io_buffer[offset];
-}
-
-void cm32p_state::dsp_io_w(offs_t offset, u8 data)
-{
- dsp_io_buffer[offset] = data;
- // do read/write to some external memory, makes the RCC-CPU check pass. (routine at 0x4679)
- switch(offset)
- {
- case 0x04:
- // write to partials?? (written in loop at 0x4375)
- break;
- case 0x06:
- {
- u8* ram = some_ram->pointer();
- offs_t ofs = data;
- ram[0x000 | ofs] = dsp_io_buffer[0x00] & 0x03;
- ram[0x100 | ofs] = dsp_io_buffer[0x01];
- ram[0x200 | ofs] = dsp_io_buffer[0x02];
- }
- break;
- case 0x0A:
- {
- const u8* ram = some_ram->pointer();
- offs_t ofs = data;
- dsp_io_buffer[0x00] = ram[0x000 | ofs];
- dsp_io_buffer[0x01] = ram[0x100 | ofs];
- dsp_io_buffer[0x02] = ram[0x200 | ofs];
- }
- break;
- }
-}
-
-u8 cm32p_state::snd_io_r(offs_t offset)
-{
- // lots of offset modification magic to achieve the following:
- // - offsets 00..1F are "sound chip read"
- // - offsets 20..3F are a readback of what was written to registers 00..1F
- // - This behaviour is reversed for offset 01/21, which is used for reading the PCM sample tables.
- // All this is just for making debugging easier, as it allows one to check the
- // register state using the Memory Viewer.
- if (offset == 0x01 || offset == 0x21)
- offset ^= 0x20; // remove when PCM data readback via sound chip is confirmed to work
- if (offset < 0x20)
- return pcm->read(offset);
- if (offset < 0x40)
- offset -= 0x20;
-
- if (offset == 0x01)
- {
- // code for reading from the PCM sample table is at 0xB027
- // The code at 0xB0AC writes to 1411/1F (??), then 1403/02 (bank), then 1409/08/0B/0A (address).
- // It waits a few cycles and at 0xB0F7 it reads the resulting data from 1401.
- offs_t bank = sound_io_buffer[0x03];
- offs_t addr = (sound_io_buffer[0x09] << 0) | (sound_io_buffer[0x0A] << 8) | (sound_io_buffer[0x0B] << 16);
- addr = ((addr >> 6) + 2) & 0x3FFFF;
- addr |= (bank << 16);
- // write actual ROM address to 1440..1443 for debugging
- sound_io_buffer[0x43] = (addr >> 0) & 0xFF;
- sound_io_buffer[0x42] = (addr >> 8) & 0xFF;
- sound_io_buffer[0x41] = (addr >> 16) & 0xFF;
- sound_io_buffer[0x40] = (addr >> 24) & 0xFF;
- return pcmrom_r(addr);
- }
- return sound_io_buffer[offset];
-}
-
-void cm32p_state::snd_io_w(offs_t offset, u8 data)
-{
- // register map
- // ------------
- // Note: 16-bit words are Little Endian, the firmware writes the odd byte is first
- // 00/01 - ??
- // 02/03 - ROM bank (only bits 11-13 are used, bit 11 = PCM card, bits 12-13 select between IC18/19/20)
- // 04/05 - frequency (2.14 fixed point, 0x4000 = 32000 Hz)
- // 06/07 - volume
- // 08/09 - sample start address, fraction (2.14 fixed point, i.e. 1 byte = 0x4000)
- // 0A/0B - sample start address (high word, i.e. address bits 2..17)
- // 0C/0D - sample end address (high word)
- // 0E/0F - sample loop address (high word)
- // 11/13/15/17 - voice enable mask (11 = least significant 8 bits, 17 = most significant 8 bits)
- // 1A - ??
- // 1F - voice select
- if (offset < 0x20)
- pcm->write(offset, data);
- sound_io_buffer[offset] = data;
-}
-
-u8 cm32p_state::test_sw_r()
-{
- return test_sw->read();
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(cm32p_state::samples_timer_cb)
-{
- // TODO: does this trigger something?
-}
-
-void cm32p_state::mt32_palette(palette_device &palette) const
-{
- palette.set_pen_color(0, rgb_t(0, 0, 0));
- palette.set_pen_color(1, rgb_t(0, 255, 0));
-}
-
-void cm32p_state::cm32p_map(address_map &map)
-{
- map(0x1080, 0x10ff).rw(FUNC(cm32p_state::dsp_io_r), FUNC(cm32p_state::dsp_io_w)); // DSP area (writes to 1080..82/86/8C/8D)
- map(0x1100, 0x1100).rw(FUNC(cm32p_state::lcd_ctrl_r), FUNC(cm32p_state::lcd_ctrl_w));
- map(0x1102, 0x1102).w(FUNC(cm32p_state::lcd_data_w));
- map(0x1300, 0x1300).r(FUNC(cm32p_state::test_sw_r)); // test switch state
- map(0x1400, 0x14ff).rw(FUNC(cm32p_state::snd_io_r), FUNC(cm32p_state::snd_io_w)); // sound chip area
- map(0x2000, 0x20ff).rom().region("maincpu", 0x2000); // init vector @ 2080
- map(0x2100, 0x3fff).ram(); // main RAM
- map(0x4000, 0xffff).rom().region("maincpu", 0x4000);
-}
-
-void cm32p_state::cm32p(machine_config &config)
-{
- i8x9x_device &maincpu(P8098(config, cpu, 12_MHz_XTAL));
- maincpu.set_addrmap(AS_PROGRAM, &cm32p_state::cm32p_map);
- maincpu.ach7_cb().set_ioport("A7");
- maincpu.serial_tx_cb().set(FUNC(cm32p_state::midi_w));
- maincpu.in_p0_cb().set(FUNC(cm32p_state::port0_r));
-
- SPEAKER(config, "lspeaker").front_left();
- SPEAKER(config, "rspeaker").front_right();
-
- MB87419_MB87420(config, pcm, 32.768_MHz_XTAL);
- pcm->int_callback().set_inputline(cpu, i8x9x_device::EXTINT_LINE);
- pcm->add_route(0, "lspeaker", 1.0);
- pcm->add_route(1, "rspeaker", 1.0);
-
- RAM(config, some_ram).set_default_size("8K");
-
- screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
- screen.set_refresh_hz(50);
- screen.set_screen_update(FUNC(cm32p_state::screen_update));
- screen.set_size(16*6-1, (16*6-1)*3/4);
- screen.set_visarea(0, 16*6-2, 0, (16*6-1)*3/4-1);
- screen.set_palette("palette");
-
- PALETTE(config, "palette", FUNC(cm32p_state::mt32_palette), 2);
-
- MSM6222B_01(config, lcd, 0);
-
- TIMER(config, midi_timer).configure_generic(FUNC(cm32p_state::midi_timer_cb));
-
- TIMER(config, "samples_timer").configure_periodic(FUNC(cm32p_state::samples_timer_cb), attotime::from_hz(32000*2));
-}
-
-void cm32p_state::init_cm32p()
-{
- // Roland did a fair amount of scrambling on the address and data lines.
- // Only the first 0x20 bytes of the ROMs are readable text in a raw dump.
- u8* src = static_cast<u8*>(memregion("pcmorg")->base());
- u8* dst = static_cast<u8*>(memregion("pcm")->base());
- for (offs_t bank_ofs = 0x00; bank_ofs < 0x400000; bank_ofs += 0x080000)
- {
- offs_t dstpos;
- for (offs_t srcpos = 0x00; srcpos < 0x80000; srcpos ++)
- {
- dstpos = UNSCRAMBLE_ADDRESS(srcpos);
- dst[bank_ofs + dstpos] = UNSCRAMBLE_DATA(src[bank_ofs + srcpos]);
- }
- }
-}
-
-ROM_START( cm32p )
- ROM_REGION( 0x10000, "maincpu", 0 )
- ROM_LOAD( "cm-32_p__1.0.0.am27c512.7d.ic9", 0x000000, 0x10000, CRC(6f2f6dfd) SHA1(689f77c1d56f923ef1dab7d993a124c47736bc56) ) // "CM-32 P // 1 0 0 <filled bubbles in red marker>" sticker on an AM27C512-150DC eprom @ IC9
-
- ROM_REGION( 0x400000, "pcmorg", 0 ) // ROMs before descrambling
- ROM_LOAD( "roland__r15179970__mb834000a-20__3b1_aa__8917_r00.45f.ic18", 0x000000, 0x80000, CRC(8e53b2a3) SHA1(4872530870d5079776e80e477febe425dc0ec1df) ) // markings under chip footprint are "MB834000A-20P-G-3B1"
- // 0x080000 .. 0x0FFFFF is reserved for the PCM card
- ROM_LOAD( "roland__r15179971__mb834000a-20__3b2_aa__8919_r02.34f.ic19", 0x100000, 0x80000, CRC(c8220761) SHA1(49e55fa672020f95fd9c858ceaae94d6db93df7d) ) // markings under chip footprint are "MB834000A20P-G-3B2" (including the missing dash, which is a typo on the board silkscreen)
- ROM_LOAD( "roland__r15179972__hn62304bpe98__9d1_japan.3f.ic20", 0x200000, 0x80000, CRC(733c4054) SHA1(9b6b59ab74e5bf838702abb087c408aaa85b7b1f) ) // markings under chip footprint are "HN62304BPE98"
- ROM_REGION( 0x400000, "pcm", ROMREGION_ERASEFF ) // ROMs after descrambling
-ROM_END
-
-SYST( 1989, cm32p, 0, 0, cm32p, cm32p, cm32p_state, init_cm32p, "Roland", "CM-32P", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )