// license:BSD-3-Clause
// copyright-holders:R. Belmont, Olivier Galibert
/***************************************************************************
drivers/esq1.c
Ensoniq ESQ-1 Digital Wave Synthesizer
Ensoniq ESQ-M (rack-mount ESQ-1)
Ensoniq SQ-80 Cross Wave Synthesizer
Driver by R. Belmont and O. Galibert
Map for ESQ-1 and ESQ-m:
0000-1fff: OS RAM
2000-3fff: Cartridge
4000-5fff: SEQRAM
6000-63ff: ES5503 DOC
6400-67ff: MC2681 DUART
6800-6fff: AD7524 (CV_MUX)
7000-7fff: OS ROM low (banked)
8000-ffff: OS ROM high (fixed)
Map for SQ-80:
0000-1fff: OS RAM
2000-3fff: Cartridge
4000-5fff: DOSRAM or SEQRAM (banked)
6000-63ff: ES5503 DOC
6400-67ff: MC2681 DUART
6800-6bff: AD7524 (CV_MUX)
6c00-6dff: Mapper (bit 0 only - determines DOSRAM or SEQRAM at 4000)
6e00-6fff: WD1772 FDC (not present on ESQ1)
7000-7fff: OS ROM low (banked)
8000-ffff: OS ROM high (fixed)
CV_MUX area:
write to output goes to
$68f8 $00 D/A converter
$68f0 -$08 Filter Frequency (FF)
$68e8 -$10 Filter Resonance (Q)
$68d8 -$20 Final DCA (ENV4)
$68b8 -$40 Panning (PAN)
$6878 -$80 Floppy (Motor/LED on - SQ-80 only)
ESQ1: 8x CEM3379 VC Signal Processor Filter/Mix/VCA, 1x CEM3360 Dual VCA, 4x SSM2300
SQ-80: 8x CEM3379 VC Signal Processor - Filter/Mix/VCA, 1x CEM3360 Dual VCA, 4x SSM2300
If SEQRAM is mapped at 4000, DUART port 2 determines the 32KB "master bank" and ports 0 and 1
determine which of the 4 8KB "sub banks" is visible.
Output ports 3 to 1 determine the 4kB page which should be shown at $7000 to $7fff.
IRQ sources are the DUART and the DRQ line from the FDC (SQ-80 only).
NMI is from the IRQ line on the FDC (again, SQ-80 only).
TODO:
- VFD display
- Keyboard
] - Analog filters and VCA on the back end of the 5503 (inaccurate)
- duart seems to keep interrupting even after MIDI xmit buffer becomes empty
NOTES:
Commands from KPC are all 2 bytes
first byte: command code, bit 7 is 1 = press, 0 = release
second byte is source: 00 = panel 01 = internal keyboard
04 SEQ
05 CART A
06 CART B
07 INT
08 1 / SEQ 1
09 2 / SEQ 2
0A 3 / SEQ 3
0B 4 / SONG
0C COMPARE
0D DATA UP
0E DATA DOWN
0F WRITE
10 = UPPER 1 (buttons above display)
11 = UPPER 2
12 = UPPER 3
13 = UPPER 4
14 = UPPER 5
15 = LOWER 1 (buttons below display)
16 = LOWER 2
17 = LOWER 3
18 = LOWER 4
19 = LOWER 5
1a = LFO 1
1b = ENV 2
1c = MASTER
1d = CREATE / ERASE
1e = SELECT
1f = RECORD
20 = STORAGE
21 = EDIT
22 = MIX
23 = STOP / CONT
24 = MIDI
25 = CONTROL
26 = LOCATE
27 = PLAY
28 = OSC 1
29 = OSC 2
2A = OSC 3
2B = ENV 1
2C = DCA 1
2D = DCA 2
2E = DCA 3
2F = LFO 2
30 = LFO 3
31 = FILTER
32 = ENV 4
33 = ENV 3
34 = DCA 4
35 = MODES
36 = SPLIT / LAYER
Analog filters (CEM3379):
The analog part is relatively simple. The digital part outputs 8
voices, which are filtered, amplified, panned then summed
together.
The filtering stage is a 4-level lowpass filter with a loopback:
+-[+]-<-[*-1]--------------------------+
| | |
^ [*r] |
| | |
| v ^
input ---+-[+]--[LPF]---[LPF]---[LPF]---[LPF]---+--- output
All 4 LPFs are identical, with a transconductance G:
output = 1/(1+s/G)^4 * ( (1+r)*input - r*output)
or
output = input * (1+r)/((1+s/G)^4+r)
to which the usual z-transform can be applied (see votrax.c)
G is voltage controlled through the Vfreq input, with the formula (Vfreq in mV):
G = 6060*exp(Vfreq/28.5)
That gives a cutoff frequency (f=G/(2pi)) of 5Hz at 5mV, 964Hz at
28.5mV and 22686Hz at 90mV. The resistor ladder between the DAC
and the input seem to map 0..255 into a range of -150.4mV to
+83.6mV.
The resonance is controlled through the Vq input pin, and is not
well defined. Reading between the lines the control seems linear
and tops when then circuit is self-oscillation, at r=4.
The amplification is exponential for a control voltage between 0
to 0.2V from -100dB to -20dB, and then linear up to 5V at 0dB. Or
in other words:
amp(Vca) = Vca < 0.2 ? 10**(-5+20*Vca) : Vca*0.1875 + 0.0625
Finally the panning is not very described. What is clear is that
the control voltage at 2.5V gives a gain of -6dB, the max
attenuation at 0/5V is -100dB. The doc also says the gain is
linear between 1V and 3.5V, which makes no sense since it's not
symmetrical, and logarithmic afterwards, probably meaning
exponential, otherwise the change between 0 and 1V would be
minimal. So we're going to do some assumptions:
- 0-1V exponential from -100Db to -30dB
- 1V-2.5V linear from -30dB to -6dB
- 2.5V-5V is 1-amp at 2.5V-v
Note that this may be incorrect, maybe to sum of squares should be
constant, the half-point should be at -3dB and the linearity in dB
space.
***************************************************************************/
#include "emu.h"
#include "bus/midi/midi.h"
#include "cpu/m6809/m6809.h"
#include "machine/input_merger.h"
#include "machine/mc68681.h"
#include "machine/wd_fdc.h"
#include "machine/esqpanel.h"
#include "sound/es5503.h"
#include "speaker.h"
#define WD1772_TAG "wd1772"
class esq1_filters : public device_t,
public device_sound_interface
{
public:
// construction/destruction
esq1_filters(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
void set_vca(int channel, uint8_t value);
void set_vpan(int channel, uint8_t value);
void set_vq(int channel, uint8_t value);
void set_vfc(int channel, uint8_t value);
protected:
// device-level overrides
virtual void device_start() override;
// device_sound_interface overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
private:
struct filter {
uint8_t vca, vpan, vq, vfc;
double amp, lamp, ramp;
double a[5], b[5];
double x[4], y[4];
};
filter filters[8];
sound_stream *stream;
void recalc_filter(filter &f);
};
DEFINE_DEVICE_TYPE(ESQ1_FILTERS, esq1_filters, "esq1_filters", "ESQ1 Filters stage")
esq1_filters::esq1_filters(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, ESQ1_FILTERS, tag, owner, clock)
, device_sound_interface(mconfig, *this)
{
}
void esq1_filters::set_vca(int channel, uint8_t value)
{
if(filters[channel].vca != value) {
stream->update();
filters[channel].vca = value;
recalc_filter(filters[channel]);
}
}
void esq1_filters::set_vpan(int channel, uint8_t value)
{
if(filters[channel].vpan != value) {
stream->update();
filters[channel].vpan = value;
recalc_filter(filters[channel]);
}
}
void esq1_filters::set_vq(int channel, uint8_t value)
{
if(filters[channel].vq != value) {
stream->update();
filters[channel].vq = value;
recalc_filter(filters[channel]);
}
}
void esq1_filters::set_vfc(int channel, uint8_t value)
{
if(filters[channel].vfc != value) {
stream->update();
filters[channel].vfc = value;
recalc_filter(filters[channel]);
}
}
void esq1_filters::recalc_filter(filter &f)
{
// Filtering stage
// First let's establish the control values
// Some tuning may be required
double vfc = -150.4 + (83.6+150.4)*f.vfc/255;
double r = 4.0*f.vq/255;
double g = 6060*exp(vfc/28.5);
double zc = g/tan(g/2/44100);
/* if(f.vfc) {
double ff = g/(2*M_PI);
double fzc = 2*M_PI*ff/tan(M_PI*ff/44100);
fprintf(stderr, "%02x f=%f zc=%f zc1=%f\n", f.vfc, g/(2*M_PI), zc, fzc);
}*/
double gzc = zc/g;
double gzc2 = gzc*gzc;
double gzc3 = gzc2*gzc;
double gzc4 = gzc3*gzc;
double r1 = 1+r;
f.a[0] = r1;
f.a[1] = 4*r1;
f.a[2] = 6*r1;
f.a[3] = 4*r1;
f.a[4] = r1;
f.b[0] = r1 + 4*gzc + 6*gzc2 + 4*gzc3 + gzc4;
f.b[1] = 4*(r1 + 2*gzc - 2*gzc3 - gzc4);
f.b[2] = 6*(r1 - 2*gzc2 + gzc4);
f.b[3] = 4*(r1 - 2*gzc + 2*gzc3 - gzc4);
f.b[4] = r1 - 4*gzc + 6*gzc2 - 4*gzc3 + gzc4;
/* if(f.vfc != 0)
for(int i=0; i<5; i++)
printf("a%d=%f\nb%d=%f\n",
i, f.a[i], i, f.b[i]);*/
// Amplification stage
double vca = f.vca*(5.0/255.0);
f.amp = vca < 0.2 ? pow(10, -5+20*vca) : vca*0.1875 + 0.0625;
// Panning stage
// Very approximative at best
// Left/right unverified
double vpan = f.vpan*(5.0/255.0);
double vref = vpan > 2.5 ? 2.5 - vpan : vpan;
double pan_amp = vref < 1 ? pow(10, -5+3.5*vref) : vref*0.312 - 0.280;
if(vref < 2.5) {
f.lamp = pan_amp;
f.ramp = 1-pan_amp;
} else {
f.lamp = 1-pan_amp;
f.ramp = pan_amp;
}
}
void esq1_filters::device_start()
{
stream = stream_alloc(8, 2, 44100);
memset(filters, 0, sizeof(filters));
for(auto & elem : filters)
recalc_filter(elem);
}
void esq1_filters::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
{
/* if(0) {
for(int i=0; i<8; i++)
fprintf(stderr, " [%02x %02x %02x %02x]",
filters[i].vca,
filters[i].vpan,
filters[i].vq,
filters[i].vfc);
fprintf(stderr, "\n");
}*/
for(int i=0; i<samples; i++) {
double l=0, r=0;
for(int j=0; j<8; j++) {
filter &f = filters[j];
double x = inputs[j][i];
double y = (x*f.a[0]
+ f.x[0]*f.a[1] + f.x[1]*f.a[2] + f.x[2]*f.a[3] + f.x[3]*f.a[4]
- f.y[0]*f.b[1] - f.y[1]*f.b[2] - f.y[2]*f.b[3] - f.y[3]*f.b[4]) / f.b[0];
memmove(f.x+1, f.x, 3*sizeof(double));
memmove(f.y+1, f.y, 3*sizeof(double));
f.x[0] = x;
f.y[0] = y;
y = y * f.amp;
l += y * f.lamp;
r += y * f.ramp;
}
static double maxl = 0;
if(l > maxl) {
maxl = l;
// fprintf(stderr, "%f\n", maxl);
}
// l *= 6553;
// r *= 6553;
l *= 2;
r *= 2;
outputs[0][i] = l < -32768 ? -32768 : l > 32767 ? 32767 : int(l);
outputs[1][i] = r < -32768 ? -32768 : r > 32767 ? 32767 : int(r);
}
}
class esq1_state : public driver_device
{
public:
esq1_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_duart(*this, "duart"),
m_filters(*this, "filters"),
m_fdc(*this, WD1772_TAG),
m_panel(*this, "panel"),
m_mdout(*this, "mdout"),
m_es5503(*this, "es5503"),
m_es5503_rom(*this, "es5503")
{ }
void sq80(machine_config &config);
void esq1(machine_config &config);
DECLARE_INPUT_CHANGED_MEMBER(key_stroke);
private:
required_device<cpu_device> m_maincpu;
required_device<scn2681_device> m_duart;
required_device<esq1_filters> m_filters;
optional_device<wd1772_device> m_fdc;
optional_device<esqpanel2x40_device> m_panel;
optional_device<midi_port_device> m_mdout;
required_device<es5503_device> m_es5503;
required_region_ptr<uint8_t> m_es5503_rom;
DECLARE_READ8_MEMBER(wd1772_r);
DECLARE_WRITE8_MEMBER(wd1772_w);
DECLARE_READ8_MEMBER(seqdosram_r);
DECLARE_WRITE8_MEMBER(seqdosram_w);
DECLARE_WRITE8_MEMBER(mapper_w);
DECLARE_WRITE8_MEMBER(analog_w);
DECLARE_WRITE8_MEMBER(duart_output);
DECLARE_READ8_MEMBER(esq1_adc_read);
DECLARE_READ8_MEMBER(es5503_sample_r);
int m_mapper_state;
int m_seq_bank;
uint8_t m_seqram[0x10000];
uint8_t m_dosram[0x2000];
virtual void machine_reset() override;
void send_through_panel(uint8_t data);
void esq1_map(address_map &map);
void sq80_map(address_map &map);
void sq80_es5503_map(address_map &map);
bool kpc_calibrated; // sq80 requires keyboard calibration acknowledgement
int m_adc_target; // adc poll target (index into the table below)
uint8_t m_adc_value[6] = { 0,0,128,0,0,0 }; // VALV,PEDV,PITV,MODV,FILV,BATV
};
READ8_MEMBER( esq1_state::es5503_sample_r )
{
return m_es5503_rom[offset + (((m_es5503->get_channel_strobe() & 8)>>3) * 0x20000)];
}
void esq1_state::sq80_es5503_map(address_map &map)
{
map(0x000000, 0x1ffff).r(FUNC(esq1_state::es5503_sample_r));
}
READ8_MEMBER(esq1_state::esq1_adc_read)
{
return m_adc_value[m_adc_target];
}
void esq1_state::machine_reset()
{
// set default OSROM banking
membank("osbank")->set_base(memregion("osrom")->base() );
m_mapper_state = 1;
m_seq_bank = 0;
kpc_calibrated = false;
}
READ8_MEMBER(esq1_state::wd1772_r)
{
return m_fdc->read(offset&3);
}
WRITE8_MEMBER(esq1_state::wd1772_w)
{
m_fdc->write(offset&3, data);
}
WRITE8_MEMBER(esq1_state::mapper_w)
{
m_mapper_state = (data & 1);
// printf("mapper_state = %d\n", data ^ 1);
}
WRITE8_MEMBER(esq1_state::analog_w)
{
if(!(offset & 8))
m_filters->set_vfc(offset & 7, data);
if(!(offset & 16))
m_filters->set_vq(offset & 7, data);
if(!(offset & 32))
m_filters->set_vpan(offset & 7, data);
if(!(offset & 64))
m_filters->set_vca(offset & 7, data);
}
READ8_MEMBER(esq1_state::seqdosram_r)
{
if (m_mapper_state)
{
return m_dosram[offset];
}
else
{
return m_seqram[offset + m_seq_bank];
}
}
WRITE8_MEMBER(esq1_state::seqdosram_w)
{
if (m_mapper_state)
{
m_dosram[offset] = data;
}
else
{
m_seqram[offset + m_seq_bank] = data;
}
}
void esq1_state::esq1_map(address_map &map)
{
map(0x0000, 0x1fff).ram(); // OSRAM
map(0x4000, 0x5fff).ram(); // SEQRAM
map(0x6000, 0x63ff).rw("es5503", FUNC(es5503_device::read), FUNC(es5503_device::write));
map(0x6400, 0x640f).rw(m_duart, FUNC(scn2681_device::read), FUNC(scn2681_device::write));
map(0x6800, 0x68ff).w(FUNC(esq1_state::analog_w));
map(0x7000, 0x7fff).bankr("osbank");
map(0x8000, 0xffff).rom().region("osrom", 0x8000); // OS "high" ROM is always mapped here
}
void esq1_state::sq80_map(address_map &map)
{
map(0x0000, 0x1fff).ram(); // OSRAM
map(0x4000, 0x5fff).rw(FUNC(esq1_state::seqdosram_r), FUNC(esq1_state::seqdosram_w));
map(0x6000, 0x63ff).rw("es5503", FUNC(es5503_device::read), FUNC(es5503_device::write));
map(0x6400, 0x640f).rw(m_duart, FUNC(scn2681_device::read), FUNC(scn2681_device::write));
map(0x6800, 0x68ff).w(FUNC(esq1_state::analog_w));
map(0x6c00, 0x6dff).w(FUNC(esq1_state::mapper_w));
map(0x6e00, 0x6fff).rw(FUNC(esq1_state::wd1772_r), FUNC(esq1_state::wd1772_w));
map(0x7000, 0x7fff).bankr("osbank");
map(0x8000, 0xffff).rom().region("osrom", 0x8000); // OS "high" ROM is always mapped here
}
// from the schematics:
//
// DUART channel A is MIDI
// channel B is to the keyboard/display
// IP0 = tape in
// IP1 = sequencer expansion cartridge inserted
// IP2 = patch cartridge inserted
// IP3 & 4 are 0.5 MHz, IP 5 & 6 are 1 MHz (note 0.5 MHz / 16 = MIDI baud rate)
//
// OP0 = to display processor
// OP1/2/3 = bank select 0, 1, and 2
// OP4 = metronome low
// OP5 = metronome hi
// OP6/7 = tape out
WRITE8_MEMBER(esq1_state::duart_output)
{
int bank = m_adc_target = ((data >> 1) & 0x7);
// printf("DP [%02x]: %d mlo %d mhi %d tape %d\n", data, data&1, (data>>4)&1, (data>>5)&1, (data>>6)&3);
// printf("%s [%02x] bank %d => offset %x\n", machine().describe_context().c_str(), data, bank, bank * 0x1000);
membank("osbank")->set_base(memregion("osrom")->base() + (bank * 0x1000) );
m_seq_bank = (data & 0x8) ? 0x8000 : 0x0000;
m_seq_bank += ((data>>1) & 3) * 0x2000;
// printf("seqram_bank = %x\n", state->m_seq_bank);
}
void esq1_state::send_through_panel(uint8_t data)
{
m_panel->xmit_char(data);
}
INPUT_CHANGED_MEMBER(esq1_state::key_stroke)
{
u8 offset = 0;
if (strncmp(machine().basename(), "sq80", 4) == 0)
{
if (!kpc_calibrated)
{ // ack SQ80 keyboard calibration
send_through_panel((u8)0xff);
kpc_calibrated = true;
}
offset = 2; // SQ80 keycodes are offset by -2
}
if (oldval == 0 && newval == 1)
{
send_through_panel((u8)param - offset);
send_through_panel((u8)0x00);
}
else if (oldval == 1 && newval == 0)
{
send_through_panel(((u8)param - offset)&0x7f);
send_through_panel((u8)0x00);
}
}
void esq1_state::esq1(machine_config &config)
{
MC6809E(config, m_maincpu, 8_MHz_XTAL / 4);
m_maincpu->set_addrmap(AS_PROGRAM, &esq1_state::esq1_map);
input_merger_device &mainirq(INPUT_MERGER_ANY_HIGH(config, "mainirq")); // open collector
mainirq.output_handler().set_inputline(m_maincpu, M6809_IRQ_LINE);
mainirq.output_handler().append_inputline(m_maincpu, M6809_FIRQ_LINE); // IRQ and FIRQ are tied together
SCN2681(config, m_duart, 8_MHz_XTAL / 2);
m_duart->set_clocks(8_MHz_XTAL / 16, 8_MHz_XTAL / 16, 8_MHz_XTAL / 8, 8_MHz_XTAL / 8);
m_duart->irq_cb().set("mainirq", FUNC(input_merger_device::in_w<0>));
m_duart->a_tx_cb().set(m_mdout, FUNC(midi_port_device::write_txd));
m_duart->b_tx_cb().set(m_panel, FUNC(esqpanel2x40_device::rx_w));
m_duart->outport_cb().set(FUNC(esq1_state::duart_output));
ESQPANEL2X40(config, m_panel);
m_panel->write_tx().set(m_duart, FUNC(scn2681_device::rx_b_w));
auto &mdin(MIDI_PORT(config, "mdin"));
midiin_slot(mdin);
mdin.rxd_handler().set(m_duart, FUNC(scn2681_device::rx_a_w)); // route MIDI Tx send directly to 68681 channel A Rx
midiout_slot(MIDI_PORT(config, "mdout"));
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
ESQ1_FILTERS(config, m_filters);
m_filters->add_route(0, "lspeaker", 1.0);
m_filters->add_route(1, "rspeaker", 1.0);
ES5503(config, m_es5503, 8_MHz_XTAL);
m_es5503->set_channels(8);
m_es5503->irq_func().set("mainirq", FUNC(input_merger_device::in_w<1>));
m_es5503->adc_func().set(FUNC(esq1_state::esq1_adc_read));
m_es5503->add_route(0, "filters", 1.0, 0);
m_es5503->add_route(1, "filters", 1.0, 1);
m_es5503->add_route(2, "filters", 1.0, 2);
m_es5503->add_route(3, "filters", 1.0, 3);
m_es5503->add_route(4, "filters", 1.0, 4);
m_es5503->add_route(5, "filters", 1.0, 5);
m_es5503->add_route(6, "filters", 1.0, 6);
m_es5503->add_route(7, "filters", 1.0, 7);
}
void esq1_state::sq80(machine_config &config)
{
esq1(config);
m_maincpu->set_addrmap(AS_PROGRAM, &esq1_state::sq80_map);
m_es5503->set_addrmap(0, &esq1_state::sq80_es5503_map);
m_es5503->irq_func().set_nop(); // not connected here
WD1772(config, m_fdc, 8_MHz_XTAL);
m_fdc->drq_wr_callback().set("mainirq", FUNC(input_merger_device::in_w<1>));
m_fdc->intrq_wr_callback().set_inputline(m_maincpu, INPUT_LINE_NMI);
}
static INPUT_PORTS_START( esq1 )
PORT_START("KEY0")
PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x84) PORT_NAME("SEQ")
PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x85) PORT_NAME("CART A")
PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x86) PORT_NAME("CART B")
PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x87) PORT_NAME("INT")
PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x88) PORT_NAME("1 / SEQ 1")
PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x89) PORT_NAME("2 / SEQ 2")
PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x8a) PORT_NAME("3 / SEQ 3")
PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x8b) PORT_NAME("4 / SONG")
PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('Z') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x8c) PORT_NAME("COMPARE")
PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x8e) PORT_NAME("DATA DOWN")
PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x8d) PORT_NAME("DATA UP")
PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x8f) PORT_NAME("WRITE")
PORT_START("KEY1")
PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x90) PORT_NAME("UPPER 1")
PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x91) PORT_NAME("UPPER 2")
PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x92) PORT_NAME("UPPER 3")
PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x93) PORT_NAME("UPPER 4")
PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x99) PORT_NAME("UPPER 5")
PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x94) PORT_NAME("LOWER 1")
PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x95) PORT_NAME("LOWER 2")
PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x96) PORT_NAME("LOWER 3")
PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x97) PORT_NAME("LOWER 4")
PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHANGED_MEMBER(DEVICE_SELF, esq1_state, key_stroke, 0x98) PORT_NAME("LOWER 5")
INPUT_PORTS_END
ROM_START( esq1 )
ROM_REGION(0x10000, "osrom", 0)
ROM_LOAD( "3p5lo.bin", 0x0000, 0x8000, CRC(ed001ad8) SHA1(14d1150bccdbc15d90567cf1812aacdb3b6ee882) )
ROM_LOAD( "3p5hi.bin", 0x8000, 0x8000, CRC(332c572f) SHA1(ddb4f62807eb2ab29e5ac6b5d209d2ecc74cf806) )
ROM_REGION(0x20000, "es5503", 0)
ROM_LOAD( "esq1wavlo.bin", 0x0000, 0x8000, CRC(4d04ac87) SHA1(867b51229b0a82c886bf3b216aa8893748236d8b) )
ROM_LOAD( "esq1wavhi.bin", 0x8000, 0x8000, CRC(94c554a3) SHA1(ed0318e5253637585559e8cf24c06d6115bd18f6) )
ROM_END
ROM_START( sq80 )
ROM_REGION(0x10000, "osrom", 0)
ROM_LOAD( "sq80rom.low", 0x0000, 0x008000, CRC(97ecd9a0) SHA1(cadff16ebbc15b52cf1d3335d22dc930d430a058) )
ROM_LOAD( "sq80rom.hig", 0x8000, 0x008000, CRC(f83962b1) SHA1(e3e5cf41f15a37f8bf29b88fb1c85c0fca9ea912) )
ROM_REGION(0x40000, "es5503", 0)
ROM_LOAD( "2202.bin", 0x00000, 0x010000, CRC(dffd538c) SHA1(e90f6ff3a7804b54c8a3b1b574ec9c223a6c2bf9) )
ROM_LOAD( "2203.bin", 0x20000, 0x010000, CRC(9be8cceb) SHA1(1ee4d7e6d2171b44e88e464071bdc4b800b69c4a) )
ROM_LOAD( "2204.bin", 0x10000, 0x010000, CRC(4937c6f7) SHA1(4505efb9b28fe6d4bcc1f79e81a70bb215c399cb) )
ROM_LOAD( "2205.bin", 0x30000, 0x010000, CRC(0f917d40) SHA1(1cfae9c80088f4c90b3c9e0b284c3b91f7ff61b9) )
ROM_REGION(0x8000, "kpc", 0) // 68HC11 keyboard/front panel processor
ROM_LOAD( "sq80_kpc_150.bin", 0x000000, 0x008000, CRC(8170b728) SHA1(3ad68bb03948e51b20d2e54309baa5c02a468f7c) )
ROM_END
ROM_START( esqm )
ROM_REGION(0x10000, "osrom", 0)
ROM_LOAD( "1355500157_d640_esq-m_oshi.u14", 0x8000, 0x008000, CRC(ea6a7bae) SHA1(2830f8c52dc443b4ca469dc190b33e2ff15b78e1) )
ROM_REGION(0x20000, "es5503", 0)
ROM_LOAD( "esq1wavlo.bin", 0x0000, 0x8000, CRC(4d04ac87) SHA1(867b51229b0a82c886bf3b216aa8893748236d8b) )
ROM_LOAD( "esq1wavhi.bin", 0x8000, 0x8000, CRC(94c554a3) SHA1(ed0318e5253637585559e8cf24c06d6115bd18f6) )
ROM_END
CONS( 1986, esq1, 0 , 0, esq1, esq1, esq1_state, empty_init, "Ensoniq", "ESQ-1 Digital Wave Synthesizer", MACHINE_NOT_WORKING )
CONS( 1986, esqm, esq1, 0, esq1, esq1, esq1_state, empty_init, "Ensoniq", "ESQ-M Digital Wave Synthesizer Module", MACHINE_NOT_WORKING )
CONS( 1988, sq80, 0, 0, sq80, esq1, esq1_state, empty_init, "Ensoniq", "SQ-80 Cross Wave Synthesizer", MACHINE_NOT_WORKING )