Merge branch 'master' into ymf278b

CMakeLists.txt

@@ -645,6 +645,10 @@ src/engine/platform/sound/ga20/iremga20.cpp
 
 src/engine/platform/sound/sm8521.c
 
+src/engine/platform/sound/supervision.c
+
+src/engine/platform/sound/upd1771c.c
+
 src/engine/platform/sound/d65modified.c
 
 src/engine/platform/sound/ted-sound.c
@@ -778,6 +782,8 @@ src/engine/platform/snes.cpp
 src/engine/platform/k007232.cpp
 src/engine/platform/ga20.cpp
 src/engine/platform/sm8521.cpp
+src/engine/platform/supervision.cpp
+src/engine/platform/upd1771c.cpp
 src/engine/platform/pv1000.cpp
 src/engine/platform/k053260.cpp
 src/engine/platform/ted.cpp

doc/8-advanced/xyosc.md

@@ -2,7 +2,7 @@
 
 also called "vectorscope", this is similar to the normal oscilloscope in that it draws audio output as a waveform, but instead of being one-dimensional and going from left to right, it is plotted in two dimensions (usually X represents left output and Y represents right output).
 
-(TODO: image)
+![oscilloscope (X-Y)](xyosc.png)
 
 right-clicking the X-Y oscilloscope window displays settings:
 - **X Channel**: the output channel which will affect the X (horizontal) axis. default is 1 (left).

src/engine/dispatchContainer.cpp

@@ -76,6 +76,8 @@
 #include "platform/vb.h"
 #include "platform/k007232.h"
 #include "platform/ga20.h"
+#include "platform/supervision.h"
+#include "platform/upd1771c.h"
 #include "platform/sm8521.h"
 #include "platform/pv1000.h"
 #include "platform/k053260.h"
@@ -684,6 +686,12 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
     case DIV_SYSTEM_GA20:
       dispatch=new DivPlatformGA20;
       break;
+    case DIV_SYSTEM_SUPERVISION:
+      dispatch=new DivPlatformSupervision;
+      break;
+    case DIV_SYSTEM_UPD1771C:
+      dispatch=new DivPlatformUPD1771c;
+      break;
     case DIV_SYSTEM_SM8521:
       dispatch=new DivPlatformSM8521;
       if (isRender) {

src/engine/instrument.cpp

@@ -1283,6 +1283,12 @@ void DivInstrument::putInsData2(SafeWriter* w, bool fui, const DivSong* song, bo
         feature64=true;
         featureS2=true;
         break;
+      case DIV_INS_SUPERVISION:
+        featureSM=true;
+        if (amiga.useSample) featureSL=true;
+        break;
+      case DIV_INS_UPD1771C:
+        break;
       case DIV_INS_MAX:
         break;
       case DIV_INS_NULL:

src/engine/instrument.h

@@ -96,6 +96,8 @@ enum DivInstrumentType: unsigned short {
   DIV_INS_GBA_MINMOD=61,
   DIV_INS_BIFURCATOR=62,
   DIV_INS_SID2=63, // coincidence!
+  DIV_INS_SUPERVISION=64,
+  DIV_INS_UPD1771C=65,
   DIV_INS_MAX,
   DIV_INS_NULL
 };

src/engine/platform/sound/supervision.c

@@ -0,0 +1,282 @@
+// THIS IS A MODIFIED VERSION OF POTATOR'S SOUND EMULATION CORE
+// MODIFIED BY AART1256 IN 2024
+
+#include "supervision.h"
+
+#include <string.h>
+
+#define SV_SAMPLE_RATE ((svision->UNSCALED_CLOCK)/64)
+#define SV_DEC_TICK ((SV_SAMPLE_RATE)/60)
+
+void supervision_sound_set_clock(struct svision_t *svision, uint32 clock) {
+    svision->UNSCALED_CLOCK = clock;
+}
+
+void supervision_memorymap_registers_write(struct svision_t *svision, uint32 Addr, uint8 Value)
+{
+    switch (Addr & 0x1fff) {
+        case 0x10: case 0x11: case 0x12: case 0x13:
+        case 0x14: case 0x15: case 0x16: case 0x17:
+            supervision_sound_wave_write(svision, ((Addr & 0x4) >> 2), Addr & 3, Value);
+            break;
+        case 0x18:
+        case 0x19:
+        case 0x1a:
+        case 0x1b:
+        case 0x1c:
+            supervision_sound_dma_write(svision, Addr & 0x07, Value);
+            break;
+        case 0x28:
+        case 0x29:
+        case 0x2a:
+            supervision_sound_noise_write(svision, Addr & 0x07, Value);
+            break;
+    }
+}
+
+void supervision_set_mute_mask(struct svision_t *svision, uint8 mask) {
+    svision->ch_mask = mask;
+}
+
+void supervision_sound_set_flags(struct svision_t *svision, uint8 flags_set)
+{
+    svision->flags = flags_set;
+}
+
+void supervision_sound_reset(struct svision_t *svision)
+{
+    memset(svision->m_channel, 0, sizeof(svision->m_channel));
+    memset(&svision->m_noise,  0, sizeof(svision->m_noise)  );
+    memset(&svision->m_dma,    0, sizeof(svision->m_dma)    );
+
+    memset(svision->ch,        0, sizeof(svision->ch)       );
+    svision->decrement_tick = 0;
+    svision->ch_mask = 15;
+}
+
+void supervision_sound_stream_update(struct svision_t *svision, uint8 *stream, uint32 len)
+{
+    size_t i, j;
+    SVISION_CHANNEL *channel;
+    uint8 s = 0;
+    uint8 *left  = stream + 0;
+    uint8 *right = stream + 1;
+    uint8 *chout = stream + 2;
+
+    for (i = 0; i < len >> 1; i++, left += 2, right += 2) {
+        *left = *right = 0;
+        for (channel = svision->m_channel, j = 0; j < 2; j++, channel++) {
+            chout[j] = 0;
+            if (svision->ch[j].size != 0) {
+                if (svision->ch[j].on || channel->count != 0) {
+                    BOOL on = 0;
+                    switch (svision->ch[j].waveform) {
+                        case 0: // 12.5%
+                            on = svision->ch[j].pos < (28 * svision->ch[j].size) >> 5;
+                            break;
+                        case 1: // 25%
+                            on = svision->ch[j].pos < (24 * svision->ch[j].size) >> 5;
+                            break;
+                        case 2: // 50%
+                            on = svision->ch[j].pos < svision->ch[j].size / 2;
+                            break;
+                        case 3: // 75%
+                            on = svision->ch[j].pos < svision->ch[j].size / 4;
+                            // MESS/MAME:  <= (9 * svision->ch[j].size) >> 5;
+                            break;
+                    }
+                    s = on ? (svision->ch[j].volume)<<2 : 0;
+                    s = ((svision->ch_mask>>(3-j))&1)?s:0;
+                    if (svision->flags&1) {
+                        if (j == 0)
+                            *right += s;
+                        else
+                            *left += s;
+                    } else {
+                        *left += s;
+                        *right += s;
+                    }
+                    chout[j] = s;
+                }
+                svision->ch[j].pos++;
+                if (svision->ch[j].pos >= svision->ch[j].size) {
+                    svision->ch[j].pos = 0;
+                    // Transition from off to on
+                    if (channel->on) {
+                        memcpy(&svision->ch[j], channel, sizeof(svision->ch[j]));
+                        channel->on = 0;
+                    }
+                }
+            }
+        }
+
+        if (svision->m_noise.on && (svision->m_noise.play || svision->m_noise.count != 0)) {
+            s = (svision->m_noise.value * svision->m_noise.volume) << 2;
+            s = svision->ch_mask&1?s:0;
+            chout[3] = 0;
+            if (svision->m_noise.left) {
+                *left += s;
+                chout[3] = s;
+            }
+            if (svision->m_noise.right) {
+                *right += s;
+                chout[3] = s;
+            }
+            svision->m_noise.pos += svision->m_noise.step;
+            while (svision->m_noise.pos >= 1.0) { // if/while difference - Pacific Battle
+                // LFSR: x^2 + x + 1
+                uint16 feedback;
+                svision->m_noise.value = svision->m_noise.state & 1;
+                feedback = ((svision->m_noise.state >> 1) ^ svision->m_noise.state) & 0x0001;
+                feedback <<= svision->m_noise.type;
+                svision->m_noise.state = (svision->m_noise.state >> 1) | feedback;
+                svision->m_noise.pos -= 1.0;
+            }
+        }
+
+        chout[2] = 0;
+        if (svision->m_dma.on) {
+            uint8 sample;
+            uint16 addr = svision->m_dma.start + (uint16)svision->m_dma.pos / 2;
+            if (addr >= 0x8000 && addr < 0xc000) {
+                sample = svision->supervision_dma_mem[(addr & 0x3fff) | svision->m_dma.ca14to16];
+            }
+            if (((uint16)svision->m_dma.pos) & 1)
+                s = (sample & 0xf);
+            else
+                s = (sample & 0xf0) >> 4;
+            s <<= 2;
+            s = ((svision->ch_mask>>1)&1)?s:0;
+            chout[2] = 0;
+            if (svision->m_dma.left) {
+                *left += s;
+                chout[2] = s;
+            }
+            if (svision->m_dma.right) {
+                *right += s;
+                chout[2] = s;
+            }
+            svision->m_dma.pos += svision->m_dma.step;
+            if (svision->m_dma.pos >= svision->m_dma.size) {
+                svision->m_dma.on = 0;
+            }
+        }
+
+        if (svision->decrement_tick > SV_DEC_TICK) {
+            svision->decrement_tick = 0;
+            supervision_sound_decrement(svision);
+        }
+        svision->decrement_tick++;
+    }
+}
+
+void supervision_sound_decrement(struct svision_t *svision)
+{
+    if (svision->m_channel[0].count > 0)
+        svision->m_channel[0].count--;
+    if (svision->m_channel[1].count > 0)
+        svision->m_channel[1].count--;
+    if (svision->m_noise.count > 0)
+        svision->m_noise.count--;
+}
+
+void supervision_sound_wave_write(struct svision_t *svision, int which, int offset, uint8 data)
+{
+    SVISION_CHANNEL *channel = &svision->m_channel[which];
+
+    channel->reg[offset] = data;
+    switch (offset) {
+        case 0:
+        case 1: {
+            uint16 size;
+            size = channel->reg[0] | ((channel->reg[1] & 7) << 8);
+            // if size == 0 then channel->size == 0
+			if (size)
+                channel->size = (uint16)(((real)SV_SAMPLE_RATE) * ((real)((size + 1) << 5)) / ((real)svision->UNSCALED_CLOCK));
+            else
+                channel->size = 0;
+            channel->pos = 0;
+            // Popo Team
+            if (channel->count != 0 || svision->ch[which].size == 0 || channel->size == 0) {
+                svision->ch[which].size = channel->size;
+                if (channel->count == 0)
+                    svision->ch[which].pos = 0;
+            }
+        }
+            break;
+        case 2:
+            channel->on       =  data & 0x40;
+            channel->waveform = (data & 0x30) >> 4;
+            channel->volume   =  data & 0x0f;
+            if (!channel->on || svision->ch[which].size == 0 || channel->size == 0) {
+                uint16 pos = svision->ch[which].pos;
+                memcpy(&svision->ch[which], channel, sizeof(svision->ch[which]));
+                if (channel->count != 0) // Journey to the West
+                    svision->ch[which].pos = pos;
+            }
+            break;
+        case 3:
+            channel->count = data + 1;
+            svision->ch[which].size = channel->size; // Sonny Xpress!
+            break;
+    }
+}
+
+void supervision_sound_dma_write(struct svision_t *svision, int offset, uint8 data)
+{
+    svision->m_dma.reg[offset] = data;
+    switch (offset) {
+        case 0:
+        case 1:
+            svision->m_dma.start = (svision->m_dma.reg[0] | (svision->m_dma.reg[1] << 8));
+            break;
+        case 2:
+            svision->m_dma.size = (data ? data : 0x100) * 32; // Number of 4-bit samples
+            break;
+        case 3:
+            // Test games: Classic Casino, SSSnake
+            svision->m_dma.step = ((real)svision->UNSCALED_CLOCK) / ((real)SV_SAMPLE_RATE * (256 << (data & 3)));
+            // MESS/MAME. Wrong
+            //svision->m_dma.step  = svision->UNSCALED_CLOCK / (256.0 * SV_SAMPLE_RATE * (1 + (data & 3)));
+            svision->m_dma.right = data & 4;
+            svision->m_dma.left  = data & 8;
+            svision->m_dma.ca14to16 = ((data & 0x70) >> 4) << 14;
+            break;
+        case 4:
+            svision->m_dma.on = data & 0x80;
+            if (svision->m_dma.on) {
+                svision->m_dma.pos = 0.0;
+            }
+            break;
+    }
+}
+
+void supervision_sound_noise_write(struct svision_t *svision, int offset, uint8 data)
+{
+    svision->m_noise.reg[offset] = data;
+    switch (offset) {
+        case 0: {
+            uint32 divisor = 8 << (data >> 4);
+			if (divisor)
+                svision->m_noise.step = ((real)svision->UNSCALED_CLOCK) / ((real)SV_SAMPLE_RATE * divisor);
+            else
+                svision->m_noise.step = 0;
+
+            svision->m_noise.step = ((real)svision->UNSCALED_CLOCK) / ((real)SV_SAMPLE_RATE * divisor);
+            svision->m_noise.volume = data & 0xf;
+        }
+            break;
+        case 1:
+            svision->m_noise.count = data + 1;
+            break;
+        case 2:
+            svision->m_noise.type  = (data & 1) ? 14 : 6;
+            svision->m_noise.play  =  data & 2;
+            svision->m_noise.right =  data & 4;
+            svision->m_noise.left  =  data & 8;
+            svision->m_noise.on    =  data & 0x10; /* honey bee start */
+            svision->m_noise.state = 1;
+            break;
+    }
+    svision->m_noise.pos = 0.0;
+}

src/engine/platform/sound/supervision.h

@@ -0,0 +1,76 @@
+#ifndef __SUPERVISION_SOUND_H__
+#define __SUPERVISION_SOUND_H__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+
+typedef uint8_t uint8;
+typedef uint16_t uint16;
+typedef uint32_t uint32;
+typedef float real;
+typedef uint8_t BOOL;
+
+
+typedef struct {
+    uint8 reg[4];
+    int on;
+    uint8 waveform, volume;
+    uint16 pos, size;
+    uint16 count;
+} SVISION_CHANNEL;
+
+typedef struct  {
+    uint8 reg[3];
+    int on, right, left, play;
+    uint8 type; // 6 - 7-Bit, 14 - 15-Bit
+    uint16 state;
+    uint8 value, volume;
+    uint16 count;
+    real pos, step;
+} SVISION_NOISE;
+
+typedef struct  {
+    uint8 reg[5];
+    int on, right, left;
+    uint32 ca14to16;
+    uint16 start;
+    uint16 size;
+    real pos, step;
+} SVISION_DMA;
+
+struct svision_t {
+    SVISION_CHANNEL m_channel[2];
+    // For clear sound (no grating), sync with m_channel
+    SVISION_CHANNEL ch[2];
+    SVISION_NOISE m_noise;
+    SVISION_DMA m_dma;
+    uint8 supervision_dma_mem[65536];
+    uint32 decrement_tick;
+    uint32 UNSCALED_CLOCK;
+    uint8 ch_mask, flags;
+};
+
+void supervision_sound_reset(struct svision_t *svision);
+void supervision_sound_set_clock(struct svision_t *svision, uint32 clock);
+void supervision_sound_stream_update(struct svision_t *svision, uint8 *stream, uint32 len);
+void supervision_sound_decrement(struct svision_t *svision);
+void supervision_sound_wave_write(struct svision_t *svision, int which, int offset, uint8 data);
+void supervision_sound_dma_write(struct svision_t *svision,int offset, uint8 data);
+void supervision_sound_noise_write(struct svision_t *svision, int offset, uint8 data);
+void supervision_sound_noise_write(struct svision_t *svision, int offset, uint8 data);
+void supervision_memorymap_registers_write(struct svision_t *svision, uint32 Addr, uint8 Value);
+// 12SN
+void supervision_set_mute_mask(struct svision_t *svision, uint8 mask);
+void supervision_sound_set_flags(struct svision_t *svision, uint8 flags_set);
+
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif
+

src/engine/platform/sound/upd1771c.c

@@ -0,0 +1,300 @@
+// SOME CODE IS TAKEN FROM MAME'S EMULATION OF THE UPD1771C
+// MADE BY AART1256 IN 2024
+
+#include "upd1771c.h"
+
+#include <string.h>
+
+/*
+  Each of the 8 waveforms have been extracted from the uPD1771c-017 internal
+  ROM, from offset 0x1fd (start of first waveform) to offset 0x2fc (end of
+  last waveform).
+  (note: given test mode dumping offset non-clarity it may be 0x200-0x2ff)
+  The waveforms are stored in an 8-bit sign-magnitude format, so if in ROM the
+  upper bit is 0x80, invert the lower 7 bits to get the 2's complement result
+  seen here.
+  Note that only the last 4 waveforms appear to have been intended for use as
+  waveforms; the first four look as if they're playing back a piece of code as
+  wave data.
+*/
+const signed char WAVEFORMS[8][32]={
+{   0,   0,-123,-123, -61, -23, 125, 107,  94,  83,-128,-128,-128,   0,   0,   0,   1,   1,   1,   1,   0,   0,   0,-128,-128,-128,   0,   0,   0,   0,   0,   0},
+{  37,  16,  32, -21,  32,  52,   4,   4,  33,  18,  60,  56,   0,   8,   5,  16,  65,  19,  69,  16,  -2,  19,  37,  16,  97,  19,   0,  87, 127,  -3,   1,   2},
+{   0,   8,   1,  52,   4,   0,   0,  77,  81,-109,  47,  97, -83,-109,  38,  97,   0,  52,   4,   0,   1,   4,   1,  22,   2, -46,  33,  97,   0,   8, -85, -99},
+{  47,  97,  40,  97,  -3,  25,  64,  17,   0,  52,  12,   5,  12,   5,  12,   5,  12,   5,  12,   5,   8,   4,-114,  19,   0,  52,-122,  21,   2,   5,   0,   8},
+{ -52, -96,-118,-128,-111, -74, -37,  -5,  31,  62,  89, 112, 127, 125, 115,  93,  57,  23,   0, -16,  -8,  15,  37,  54,  65,  70,  62,  54,  43,  31,  19,   0},
+{ -81,-128, -61,  13,  65,  93, 127,  47,  41,  44,  52,  55,  56,  58,  58,  34,   0,  68,  76,  72,  61, 108,  55,  29,  32,  39,  43,  49,  50,  51,  51,   0},
+{ -21, -45, -67, -88,-105,-114,-122,-128,-123,-116,-103, -87, -70, -53, -28,  -9,  22,  46,  67,  86, 102, 114, 123, 125, 127, 117, 104,  91,  72,  51,  28,   0},
+{ -78,-118,-128,-102, -54,  -3,  40,  65,  84,  88,  84,  80,  82,  88,  94, 103, 110, 119, 122, 125, 122, 122, 121, 123, 125, 126, 127, 127, 125, 118,  82,   0}
+};
+
+
+#define NOISE_SIZE 255
+
+
+/*
+const unsigned char noise_tbl[]=
+{
+	0x1c,0x86,0x8a,0x8f,0x98,0xa1,0xad,0xbe,0xd9,0x8a,0x66,0x4d,0x40,0x33,0x2b,0x23,
+	0x1e,0x8a,0x90,0x97,0xa4,0xae,0xb8,0xd6,0xec,0xe9,0x69,0x4a,0x3e,0x34,0x2d,0x27,
+	0x24,0x24,0x89,0x8e,0x93,0x9c,0xa5,0xb0,0xc1,0xdd,0x40,0x36,0x30,0x29,0x27,0x24,
+	0x8b,0x90,0x96,0x9e,0xa7,0xb3,0xc4,0xe1,0x25,0x21,0x8a,0x8f,0x93,0x9d,0xa5,0xb2,
+	0xc2,0xdd,0xdd,0x98,0xa2,0xaf,0xbf,0xd8,0xfd,0x65,0x4a,0x3c,0x31,0x2b,0x24,0x22,
+	0x1e,0x87,0x8c,0x91,0x9a,0xa3,0xaf,0xc0,0xdb,0xbe,0xd9,0x8c,0x66,0x4d,0x40,0x34,
+	0x2c,0x24,0x1f,0x88,0x90,0x9a,0xa4,0xb2,0xc2,0xda,0xff,0x67,0x4d,0x3d,0x34,0x2d,
+	0x26,0x24,0x20,0x89,0x8e,0x93,0x9c,0xa5,0xb1,0xc2,0xde,0xc1,0xda,0xff,0x67,0x4d,
+	0x3d,0x33,0x2d,0x26,0x24,0x20,0x89,0x8e,0x93,0x9c,0xa5,0xb1,0xc2,0xdd,0xa3,0xb0,
+	0xc0,0xd9,0xfe,0x66,0x4b,0x3c,0x32,0x2b,0x24,0x23,0x1e,0x88,0x8d,0x92,0x9b,0xa4,
+	0xb0,0xc1,0xdc,0xad,0xbe,0xda,0x22,0x20,0x1c,0x85,0x8a,0x8f,0x98,0xa1,0xad,0xbe,
+	0xda,0x20,0x1b,0x85,0x8d,0x97,0xa1,0xaf,0xbf,0xd8,0xfd,0x64,0x49,0x3a,0x30,0x2a,
+	0x23,0x21,0x1d,0x86,0x8b,0x91,0x9a,0xa2,0xae,0xc0,0xdb,0x33,0x2b,0x24,0x1f,0x88,
+	0x90,0x9a,0xa4,0xb2,0xc2,0xda,0xff,0x67,0x4c,0x3e,0x33,0x2d,0x25,0x24,0x1f,0x89,
+	0x8e,0x93,0x9c,0xa5,0xb1,0xc2,0xde,0x85,0x8e,0x98,0xa2,0xb0,0xc0,0xd9,0xfe,0x64,
+	0x4b,0x3b,0x31,0x2a,0x23,0x22,0x1e,0x88,0x8c,0x91,0x9b,0xa3,0xaf,0xc1,0xdc,0xdc
+};
+*/
+
+const unsigned char noise_tbl[8][256] = {
+{
+  0x84, 0x87, 0x8c, 0x93, 0x9a, 0xa4, 0xb2, 0xc8, 0x8a, 0x6c, 0x58, 0x4e, 0x43, 0x3d, 0x37, 0x33,
+  0x86, 0x8d, 0x95, 0x9d, 0xa8, 0xb5, 0xc9, 0xe7, 0x6d, 0x58, 0x4b, 0x43, 0x3e, 0x38, 0x37, 0x34,
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+  0xbf, 0xdc, 0xd4, 0xaa, 0x82, 0x81, 0x35, 0x34, 0x4d, 0x75, 0x95, 0xcb, 0xde, 0xc9, 0x91, 0x72,
+  0x4a, 0x30, 0x6b, 0x57, 0x69, 0x7d, 0x65, 0x3f, 0x33, 0x4f, 0x69, 0x81, 0xc1, 0xde, 0xd6, 0xac,
+  0x83, 0x82, 0x37, 0x36, 0x4f, 0x77, 0x96, 0xcd, 0xe0, 0xca, 0x93, 0x73, 0x4c, 0x31, 0x6d, 0x58,
+  0x6a, 0x4f, 0x68, 0x80, 0xc0, 0xdd, 0xd5, 0xab, 0x82, 0x82, 0x36, 0x35, 0x4e, 0x76, 0x95, 0xcc,
+  0xdf, 0xca, 0x92, 0x73, 0x4b, 0x31, 0x6c, 0x57, 0x6a, 0xe0, 0xca, 0x92, 0x73, 0x4c, 0x31, 0x6c,
+  0x58, 0x6a, 0xad, 0xd5, 0xdb, 0xbc, 0x7b, 0x63, 0x3c, 0x31, 0x4e, 0x66, 0x7e, 0xbe, 0xdb, 0xd3,
+  0xaa, 0x81, 0x80, 0x34, 0x33, 0x4c, 0x75, 0x94, 0xcb, 0xde, 0xc8, 0x91, 0x71, 0x4a, 0x2f, 0x6b,
+  0x56, 0x68, 0x35, 0x4e, 0x76, 0x95, 0xcc, 0xdf, 0xca, 0x92, 0x72, 0x4b, 0x30, 0x6c, 0x57, 0x6a,
+  0xcc, 0xdf, 0xca, 0x91, 0x72, 0x4b, 0x30, 0x6c, 0x57, 0x69, 0x69, 0x7e, 0xbe, 0xdb, 0xd3, 0xa9,
+  0x81, 0x80, 0x34, 0x33, 0x4c, 0x74, 0x94, 0xcb, 0xdd, 0xc8, 0x90, 0x71, 0x4a, 0x2f, 0x6b, 0x55,
+  0x68, 0x56, 0x69, 0xac, 0xd4, 0xd9, 0xbb, 0x7a, 0x62, 0x3c, 0x30, 0x4c, 0x65, 0x7d, 0xbd, 0xda,
+  0xd2, 0xa8, 0x80, 0x7f, 0x34, 0x33, 0x4c, 0x74, 0x94, 0xca, 0xdd, 0xc8, 0x90, 0x71, 0x49, 0x2e,
+  0x6a, 0x55, 0x67, 0xd3, 0xa9, 0x81, 0x80, 0x34, 0x33, 0x4c, 0x74, 0x94, 0xca, 0xde, 0xc8, 0x91,
+  0x71, 0x4a, 0x2f, 0x6a, 0x56, 0x68, 0xbd, 0xda, 0xd2, 0xa8, 0x7f, 0x7e, 0x33, 0x32, 0x4b, 0x73,
+  0x92, 0xc9, 0xdc, 0xc7, 0x8f, 0x70, 0x49, 0x2e, 0x69, 0x54, 0x67, 0x6a, 0x56, 0x68, 0x93, 0xca,
+  0xdd, 0xc8, 0x90, 0x70, 0x49, 0x2e, 0x6a, 0x55, 0x68, 0x3d, 0x31, 0x4e, 0x67, 0x7f
+
+},
+
+};
+
+void upd1771c_reset(struct upd1771c_t *scv) {
+    memset(scv->upd1771c_packets,0,16);
+    scv->upd1771c_mode = 0;
+    scv->upd1771c_pos = 0;
+    scv->upd1771c_posc = 0;
+    scv->upd1771c_wave = 0;
+    scv->upd1771c_vol = 0;
+    scv->upd1771c_period = 0;
+    scv->upd1771c_off = 0;
+    scv->upd1771c_npos = 0;
+    //scv->upd1771c_repsamp = 0;
+}
+
+void upd1771c_write_packet(struct upd1771c_t *scv, uint8_t ind, uint8_t val) {
+    scv->upd1771c_packets[ind&15] = val;
+    switch (scv->upd1771c_packets[0]) {
+        case 1:
+            if (ind == 3) {
+                scv->upd1771c_mode = 1;
+                scv->upd1771c_wave = (scv->upd1771c_packets[1]&0xe0)>>5;
+                scv->upd1771c_off = 0; //?
+                scv->upd1771c_period = scv->upd1771c_packets[2];
+                scv->upd1771c_vol = scv->upd1771c_packets[3]&0x1f;
+            }
+            break;
+        case 2:
+            if (ind == 3) {
+                scv->upd1771c_mode = 2;
+                scv->upd1771c_wave = (scv->upd1771c_packets[1]&0xe0)>>5;
+                scv->upd1771c_off = scv->upd1771c_packets[1]&0x1f;
+                scv->upd1771c_period = scv->upd1771c_packets[2]<0x20?0x20:scv->upd1771c_packets[2];
+                scv->upd1771c_vol = scv->upd1771c_packets[3]&0x1f;
+            }
+            break;
+        default:
+        case 0:
+            scv->upd1771c_mode = 0;
+            break;
+    }
+}
+
+void upd1771c_sound_set_clock(struct upd1771c_t *scv, unsigned int clock, unsigned int divi) {
+    scv->upd1771c_repsamp = divi;
+}
+
+int16_t upd1771c_sound_stream_update(struct upd1771c_t *scv) {
+    int16_t s = 0;
+    for (int i = 0; i < scv->upd1771c_repsamp; i++) {
+        s = 0;
+        switch (scv->upd1771c_mode) {
+            case 2:
+                s = ((int16_t)WAVEFORMS[scv->upd1771c_wave][scv->upd1771c_posc])*scv->upd1771c_vol;
+                scv->upd1771c_pos++;
+                if (scv->upd1771c_pos >= scv->upd1771c_period) {
+                    scv->upd1771c_pos=0;
+                    scv->upd1771c_posc++;
+                    if (scv->upd1771c_posc == 32)
+                        scv->upd1771c_posc = scv->upd1771c_off;
+                }
+                break;
+            case 1:
+                scv->upd1771c_pos++;
+                if (scv->upd1771c_pos >= ((((uint32_t)scv->upd1771c_period) + 1)*128)) {
+                    scv->upd1771c_pos=0;
+                    scv->upd1771c_posc++;
+                    if (scv->upd1771c_posc == NOISE_SIZE)
+                        scv->upd1771c_posc = 0;
+                }
+                uint16_t p = scv->upd1771c_posc;
+                p = p>=254?253:p;
+                s = ((int16_t)(noise_tbl[scv->upd1771c_wave][p])-127)*scv->upd1771c_vol;
+                // inaccurate noise mixing :/
+                // s |= (scv->upd1771c_npos&128)?127*scv->upd1771c_vol:0;
+                break;
+            case 0:
+            default:
+                break;
+        }
+    }
+    return s;
+}
+

src/engine/platform/sound/upd1771c.h

@@ -0,0 +1,33 @@
+#ifndef __UPD1771C_SOUND_H__
+#define __UPD1771C_SOUND_H__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+
+struct upd1771c_t {
+    uint8_t upd1771c_packets[16];
+    uint8_t upd1771c_mode;
+    uint32_t upd1771c_pos;
+    uint8_t upd1771c_off;
+    uint8_t upd1771c_posc;
+    uint8_t upd1771c_wave;
+    uint8_t upd1771c_vol;
+    uint8_t upd1771c_period;
+    uint8_t upd1771c_npos;
+    int upd1771c_repsamp;
+};
+
+void upd1771c_reset(struct upd1771c_t *scv);
+void upd1771c_write_packet(struct upd1771c_t *scv, uint8_t ind, uint8_t val);
+int16_t upd1771c_sound_stream_update(struct upd1771c_t *scv);
+void upd1771c_sound_set_clock(struct upd1771c_t *scv, unsigned int clock, unsigned int divi);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif

src/engine/platform/supervision.cpp

@@ -0,0 +1,599 @@
+/**
+ * Furnace Tracker - multi-system chiptune tracker
+ * Copyright (C) 2021-2024 tildearrow and contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "supervision.h"
+#include "../engine.h"
+#include "../../ta-log.h"
+#include "furIcons.h"
+#include <math.h>
+
+//#define rWrite(a,v) pendingWrites[a]=v;
+#define rWrite(a,v) if (!skipRegisterWrites) {writes.push(QueuedWrite(a,v)); if (dumpWrites) {addWrite(a,v);} }
+
+#define CHIP_DIVIDER 32
+
+const char* regCheatSheetSupervision[]={
+  "Freq0L", "10",
+  "Freq0H", "11",
+  "Control0", "12",
+  "Len0", "13",
+
+  "Freq1L", "14",
+  "Freq1H", "15",
+  "Control1", "16",
+  "Len1", "17",
+
+  "DMAstartL", "18",
+  "DMAstartH", "19",
+  "DMAlen", "1a",
+  "DMAstep", "1b",
+  "DMAon", "1c",
+
+  "NoisDiv", "28",
+  "NoisLen", "29",
+  "NoisCtrl", "2a",
+
+  NULL
+};
+
+const char** DivPlatformSupervision::getRegisterSheet() {
+  return regCheatSheetSupervision;
+}
+
+void DivPlatformSupervision::acquire(short** buf, size_t len) {
+  int mask_bits=0;
+  for (int i=0; i<4; i++)
+    mask_bits |= isMuted[i]?0:8>>i;
+  supervision_set_mute_mask(&svision,mask_bits);
+
+  for (size_t h=0; h<len; h++) {
+    while (!writes.empty()) {
+      QueuedWrite w=writes.front();
+      supervision_memorymap_registers_write(&svision,w.addr|0x2000,w.val);
+      regPool[w.addr&0x3f]=w.val;
+      writes.pop();
+    }
+
+    unsigned char s[6];
+    supervision_sound_stream_update(&svision,s,2);
+    tempL[0]=(((int)s[0])-128)*256;
+    tempR[0]=(((int)s[1])-128)*256;
+
+    for (int i=0; i<4; i++) {
+      oscBuf[i]->data[oscBuf[i]->needle++]=CLAMP((((int)s[2+i])-128)*256,-32768,32767);
+    }
+
+    tempL[0]=(tempL[0]>>1)+(tempL[0]>>2);
+    tempR[0]=(tempR[0]>>1)+(tempR[0]>>2);
+
+    if (tempL[0]<-32768) tempL[0]=-32768;
+    if (tempL[0]>32767) tempL[0]=32767;
+    if (tempR[0]<-32768) tempR[0]=-32768;
+    if (tempR[0]>32767) tempR[0]=32767;
+    
+    //printf("tempL: %d tempR: %d\n",tempL,tempR);
+    buf[0][h]=tempL[0];
+    buf[1][h]=tempR[0];
+  }
+}
+
+void DivPlatformSupervision::tick(bool sysTick) {
+  for (int i=0; i<4; i++) {
+
+    chan[i].std.next();
+    if (chan[i].std.vol.had) {
+      chan[i].outVol=VOL_SCALE_LINEAR(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
+    }
+    if (NEW_ARP_STRAT) {
+      chan[i].handleArp();
+    } else if (chan[i].std.arp.had) {
+      if (!chan[i].inPorta) {
+        int f=parent->calcArp(chan[i].note,chan[i].std.arp.val);
+        if (i==2 || i==3) {
+          chan[i].baseFreq=f;
+          //if (chan[i].baseFreq>255) chan[i].baseFreq=255;
+          if (chan[i].baseFreq<0) chan[i].baseFreq=0;
+        } else {
+          chan[i].baseFreq=NOTE_PERIODIC(f);
+        }
+      }
+      chan[i].freqChanged=true;
+    }
+    if (chan[i].std.duty.had) {
+      chan[i].duty=chan[i].std.duty.val;
+    }
+    if (chan[i].std.panL.had) {
+      chan[i].pan=chan[i].std.panL.val&3;
+    }
+    if (chan[i].std.pitch.had) {
+      if (chan[i].std.pitch.mode) {
+        chan[i].pitch2+=chan[i].std.pitch.val;
+        CLAMP_VAR(chan[i].pitch2,-32768,32767);
+      } else {
+        chan[i].pitch2=chan[i].std.pitch.val;
+      }
+      chan[i].freqChanged=true;
+    }
+    if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
+      //DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_PCE);
+      if (i<2) {
+        chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock<<1,CHIP_DIVIDER);
+        if (chan[i].freq<1) chan[i].freq=1;
+        if (chan[i].freq>2047) chan[i].freq=2047;
+        if (chan[i].freqChanged || chan[i].initWrite) {
+          rWrite(0x10|(i<<2),chan[i].freq&0xff);
+          rWrite(0x11|(i<<2),(chan[i].freq>>8)&0x7);
+        }
+        chan[i].initWrite=false;
+      } else if (i==3) {
+        int ntPos=chan[i].baseFreq;
+        if (NEW_ARP_STRAT) {
+          if (chan[i].fixedArp) {
+            ntPos=chan[i].baseNoteOverride;
+          } else {
+            ntPos+=chan[i].arpOff;
+          }
+        }
+        ntPos+=chan[i].pitch2;
+        chan[i].freq=15-(ntPos&15);
+        unsigned char r=(chan[i].freq<<4)|(chan[i].outVol&0xf);
+        rWrite(0x28,r);
+        noiseReg[0]=r;
+        rWrite(0x29,0xc8);
+        r=((chan[i].duty&1)^dutySwap)|(0x02|0x10)|(chan[i].pan<<2);
+        rWrite(0x2A,r);
+      }
+      if (chan[i].keyOn && i==2) {
+        if (chan[i].pcm) {
+          int ntPos=chan[i].sampleNote;
+          ntPos+=chan[i].pitch2;
+          chan[i].freq=3-(ntPos&3);
+          int sNum=chan[i].sample;
+          DivSample* sample=parent->getSample(sNum);
+          if (sample!=NULL && sNum>=0 && sNum<parent->song.sampleLen) {
+            unsigned int off=MIN(sampleOff[sNum]+chan[i].hasOffset,sampleOff[sNum]+sampleLen[sNum]);
+            unsigned int len=MAX((((int)sampleLen[sNum])-((int)chan[i].hasOffset)),0);
+            if (len) {
+              rWrite(0x18,off&0xff);
+              rWrite(0x19,(off>>8&0x3f)|0x80);
+              rWrite(0x1A,MIN(MAX(len>>4,0),255));
+              rWrite(0x1B,chan[i].freq|((chan[i].pan&3)<<2)|((off>>14&7)<<4));
+              rWrite(0x1C,0x80);
+            }
+            sampleOffset=chan[i].hasOffset;
+            chan[i].hasOffset=0;
+          }
+        }
+      }
+      if (chan[i].keyOff && i==2) {
+        if (chan[i].pcm) {
+          int ntPos=chan[i].sampleNote;
+          ntPos+=chan[i].pitch2;
+          chan[i].freq=3-(ntPos&3);
+          int sNum=chan[i].sample;
+          DivSample* sample=parent->getSample(sNum);
+          if (sample!=NULL && sNum>=0 && sNum<parent->song.sampleLen) {
+            rWrite(0x1C,0x00);
+          }
+        }
+      }
+      if (chan[i].keyOn) chan[i].kon=true;
+      if (chan[i].keyOff) chan[i].kon=false;
+      if (chan[i].keyOn) chan[i].keyOn=false;
+      if (chan[i].keyOff) chan[i].keyOff=false;
+      chan[i].freqChanged=false;
+    }
+
+    if (chan[i].kon) {
+      if (i<2) {
+        rWrite(0x12|(i<<2),(chan[i].outVol&0xf)|((chan[i].duty&3)<<4));
+        rWrite(0x13|(i<<2),0xc8);
+      } else if (i == 3) {
+        int ntPos=chan[i].baseFreq;
+        if (NEW_ARP_STRAT) {
+          if (chan[i].fixedArp) {
+            ntPos=chan[i].baseNoteOverride;
+          } else {
+            ntPos+=chan[i].arpOff;
+          }
+        }
+        ntPos+=chan[i].pitch2;
+        chan[i].freq=15-(ntPos&15);
+        unsigned char r=(chan[i].freq<<4)|(chan[i].outVol&0xf);
+        if (noiseReg[0] != r) rWrite(0x28,r);
+        noiseReg[0]=r;
+        rWrite(0x29,0xc8);
+        r=((chan[i].duty&1)^dutySwap)|(0x02|0x10)|(chan[i].pan<<2);
+        if (noiseReg[2] != r) rWrite(0x2A,r);
+        noiseReg[2]=r;
+      } else if (i==2) {
+        if (chan[i].pcm) {
+          int ntPos=chan[i].sampleNote;
+          ntPos+=chan[i].pitch2;
+          chan[i].freq=3-(ntPos&3);
+          int sNum=chan[i].sample;
+          DivSample* sample=parent->getSample(sNum);
+          if (sample!=NULL && sNum>=0 && sNum<parent->song.sampleLen) {
+            unsigned int off=MIN(sampleOff[sNum]+sampleOffset,sampleOff[sNum]+sampleLen[sNum]);
+            unsigned int len=MAX((((int)sampleLen[sNum])-((int)sampleOffset)),0);
+            if (len) {
+              rWrite(0x1A,MIN(MAX(len>>4,0),255));
+              if (chan[i].outVol==0) {
+                rWrite(0x1B,chan[i].freq|((off>>14&7)<<4));
+              } else {
+                rWrite(0x1B,chan[i].freq|((chan[i].pan&3)<<2)|((off>>14&7)<<4));
+              }
+            }
+          }
+        }
+      }
+    } else {
+      if (i < 2) {
+        rWrite(0x12|(i<<2),0);
+        rWrite(0x13|(i<<2),0xc8);
+      } else if (i == 3) {
+        rWrite(0x29,0);
+        unsigned char r=0;
+        if (noiseReg[2] != r) rWrite(0x2A,r);
+        noiseReg[2]=r;
+      }
+    }
+
+  }
+}
+
+int DivPlatformSupervision::dispatch(DivCommand c) {
+  switch (c.cmd) {
+    case DIV_CMD_NOTE_ON: {
+      DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_SUPERVISION);
+      if (ins->type==DIV_INS_AMIGA || ins->amiga.useSample) {
+        chan[c.chan].pcm=true;
+      } else {
+        chan[c.chan].pcm=false;
+      }
+      if (chan[c.chan].pcm) {
+        if (c.value!=DIV_NOTE_NULL) {
+          chan[c.chan].sample=ins->amiga.getSample(c.value);
+          chan[c.chan].sampleNote=c.value;
+          if (c.chan==2) {
+            c.value=ins->amiga.getFreq(c.value);
+            chan[c.chan].sampleNote=c.value;
+          }
+        }
+      } else {
+        chan[c.chan].sampleNote=DIV_NOTE_NULL;
+        chan[c.chan].sampleNoteDelta=0;
+      }
+      if (c.value!=DIV_NOTE_NULL) {
+        chan[c.chan].baseFreq=c.chan==3?c.value:NOTE_PERIODIC(c.value);
+        chan[c.chan].freqChanged=true;
+        chan[c.chan].note=c.value;
+      }
+      chan[c.chan].active=true;
+      chan[c.chan].keyOn=true;
+      //chwrite(c.chan,0x04,0x80|chan[c.chan].vol);
+      chan[c.chan].macroInit(ins);
+      if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
+        chan[c.chan].outVol=chan[c.chan].vol;
+      }
+      chan[c.chan].insChanged=false;
+      break;
+    }
+    case DIV_CMD_NOTE_OFF:
+      if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
+      chan[c.chan].active=false;
+      chan[c.chan].keyOff=true;
+      chan[c.chan].macroInit(NULL);
+      break;
+    case DIV_CMD_NOTE_OFF_ENV:
+    case DIV_CMD_ENV_RELEASE:
+      chan[c.chan].std.release();
+      break;
+    case DIV_CMD_INSTRUMENT:
+      if (chan[c.chan].ins!=c.value || c.value2==1) {
+        chan[c.chan].ins=c.value;
+        chan[c.chan].insChanged=true;
+      }
+      break;
+    case DIV_CMD_VOLUME:
+      if (chan[c.chan].vol!=c.value) {
+        chan[c.chan].vol=c.value;
+        if (!chan[c.chan].std.vol.has) {
+          chan[c.chan].outVol=c.value;
+          if (chan[c.chan].active) {
+            //chwrite(c.chan,0x04,0x80|chan[c.chan].outVol);
+          }
+        }
+      }
+      break;
+    case DIV_CMD_GET_VOLUME:
+      if (chan[c.chan].std.vol.has) {
+        return chan[c.chan].vol;
+      }
+      return chan[c.chan].outVol;
+      break;
+    case DIV_CMD_PITCH:
+      chan[c.chan].pitch=c.value;
+      chan[c.chan].freqChanged=true;
+      break;
+    case DIV_CMD_NOTE_PORTA: {
+      int destFreq=NOTE_PERIODIC(c.value2+chan[c.chan].sampleNoteDelta);
+      bool return2=false;
+      if (destFreq>chan[c.chan].baseFreq) {
+        chan[c.chan].baseFreq+=c.value;
+        if (chan[c.chan].baseFreq>=destFreq) {
+          chan[c.chan].baseFreq=destFreq;
+          return2=true;
+        }
+      } else {
+        chan[c.chan].baseFreq-=c.value;
+        if (chan[c.chan].baseFreq<=destFreq) {
+          chan[c.chan].baseFreq=destFreq;
+          return2=true;
+        }
+      }
+      chan[c.chan].freqChanged=true;
+      if (return2) {
+        chan[c.chan].inPorta=false;
+        return 2;
+      }
+      break;
+    }
+    case DIV_CMD_STD_NOISE_MODE:
+      chan[c.chan].duty=c.value;
+      break;
+    case DIV_CMD_SAMPLE_POS:
+      chan[c.chan].hasOffset=c.value;
+      chan[c.chan].keyOn=true;
+      break;
+    case DIV_CMD_PANNING: {
+      chan[c.chan].pan=0;
+      if (c.value&0xf0) chan[c.chan].pan|=2;
+      if (c.value2>>4) chan[c.chan].pan|=1;
+      if (chan[c.chan].pan==0) chan[c.chan].pan=3;
+      break;
+    }
+    case DIV_CMD_LEGATO:
+      chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+chan[c.chan].sampleNoteDelta+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val):(0)));
+      chan[c.chan].freqChanged=true;
+      chan[c.chan].note=c.value;
+      break;
+    case DIV_CMD_PRE_PORTA:
+      if (chan[c.chan].active && c.value2) {
+        if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_SUPERVISION));
+      }
+      if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
+      chan[c.chan].inPorta=c.value;
+      break;
+    case DIV_CMD_GET_VOLMAX:
+      return 15;
+      break;
+    case DIV_CMD_MACRO_OFF:
+      chan[c.chan].std.mask(c.value,true);
+      break;
+    case DIV_CMD_MACRO_ON:
+      chan[c.chan].std.mask(c.value,false);
+      break;
+    case DIV_CMD_MACRO_RESTART:
+      chan[c.chan].std.restart(c.value);
+      break;
+    default:
+      break;
+  }
+  return 1;
+}
+
+void DivPlatformSupervision::muteChannel(int ch, bool mute) {
+  isMuted[ch]=mute;
+}
+
+void DivPlatformSupervision::forceIns() {
+  for (int i=0; i<4; i++) {
+    chan[i].insChanged=true;
+    chan[i].freqChanged=true;
+    //chwrite(i,0x05,isMuted[i]?0:chan[i].pan);
+  }
+}
+
+void* DivPlatformSupervision::getChanState(int ch) {
+  return &chan[ch];
+}
+
+DivMacroInt* DivPlatformSupervision::getChanMacroInt(int ch) {
+  return &chan[ch].std;
+}
+
+DivDispatchOscBuffer* DivPlatformSupervision::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
+unsigned char* DivPlatformSupervision::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformSupervision::getRegisterPoolSize() {
+  return 64;
+}
+
+void DivPlatformSupervision::reset() {
+  writes.clear();
+  memset(regPool,0,64);
+  for (int i=0; i<4; i++) {
+    chan[i]=DivPlatformSupervision::Channel();
+    chan[i].std.setEngine(parent);
+  }
+  if (dumpWrites) {
+    addWrite(0xffffffff,0);
+  }
+  supervision_sound_reset(&svision);
+  memset(tempL,0,32*sizeof(int));
+  memset(tempR,0,32*sizeof(int));
+  memset(noiseReg,0,3*sizeof(unsigned char));
+  noiseReg[2]=0xff;
+  sampleOffset=0;
+}
+
+int DivPlatformSupervision::getOutputCount() {
+  return 2;
+}
+
+bool DivPlatformSupervision::keyOffAffectsArp(int ch) {
+  return true;
+}
+
+void DivPlatformSupervision::notifyInsDeletion(void* ins) {
+  for (int i=0; i<4; i++) {
+    chan[i].std.notifyInsDeletion((DivInstrument*)ins);
+  }
+}
+
+void DivPlatformSupervision::setFlags(const DivConfig& flags) {
+  if (flags.getInt("swapDuty",true)) {
+    dutySwap=1;
+  } else {
+    dutySwap=0;
+  }
+  otherFlags=0;
+  if (flags.getInt("sqStereo",false)) {
+    otherFlags |= 1;
+  }
+  chipClock=4000000;
+  CHECK_CUSTOM_CLOCK;
+  rate=chipClock/64;
+  for (int i=0; i<4; i++) {
+    oscBuf[i]->rate=rate;
+  }
+  supervision_sound_set_clock(&svision,(unsigned int)chipClock);
+  supervision_sound_set_flags(&svision,(unsigned int)otherFlags);
+}
+
+void DivPlatformSupervision::poke(unsigned int addr, unsigned short val) {
+  rWrite(addr,val);
+}
+
+void DivPlatformSupervision::poke(std::vector<DivRegWrite>& wlist) {
+  for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
+}
+
+const void* DivPlatformSupervision::getSampleMem(int index) {
+  return index==0?sampleMem:NULL;
+}
+
+size_t DivPlatformSupervision::getSampleMemCapacity(int index) {
+  return index==0?65536:0;
+}
+
+size_t DivPlatformSupervision::getSampleMemUsage(int index) {
+  return index==0?sampleMemLen:0;
+}
+
+bool DivPlatformSupervision::isSampleLoaded(int index, int sample) {
+  if (index!=0) return false;
+  if (sample<0 || sample>255) return false;
+  return sampleLoaded[sample];
+}
+
+const DivMemoryComposition* DivPlatformSupervision::getMemCompo(int index) {
+  if (index!=0) return NULL;
+  return &memCompo;
+}
+
+void DivPlatformSupervision::renderSamples(int sysID) {
+  memset(sampleMem,0,getSampleMemCapacity(0));
+  memset(sampleLoaded,0,256*sizeof(bool));
+
+  memCompo=DivMemoryComposition();
+  memCompo.name="Sample Memory";
+
+  size_t memPos=0;
+  for (int i=0; i<parent->song.sampleLen; i++) {
+    DivSample* s=parent->song.sample[i];
+    if (!s->renderOn[0][sysID]) {
+      sampleOff[i]=0;
+      continue;
+    }
+    unsigned int paddedLen=((s->length8>>1)+31)&(~0x1f);
+    logV("%d padded length: %d",i,paddedLen);
+    if (paddedLen>=4096) {
+      paddedLen=4096;
+    }
+    if ((memPos&(~0x3fff))!=((memPos+paddedLen)&(~0x3fff))) {
+      memPos=(memPos+0x3fff)&(~0x3fff);
+    }
+    if (memPos>=getSampleMemCapacity(0)) {
+      logW("out of memory for sample %d!",i);
+      break;
+    }
+    if (memPos+paddedLen>=getSampleMemCapacity(0)) {
+      sampleLen[i]=(getSampleMemCapacity(0)-memPos)>>1;
+      for (size_t i=0; i<(getSampleMemCapacity(0)-memPos)>>1; i++) {
+          sampleMem[memPos+i]=(((s->data8[i*2+0]+128)>>4)<<4&0xf0)|(((s->data8[i*2+1]+128)>>4)&0xf);
+      }
+      logW("out of memory for sample %d!",i);
+    } else {
+      size_t len=MIN((s->length8>>1),paddedLen);
+      sampleLen[i]=(unsigned int)(len);
+      for (size_t i=0; i<len; i++) {
+          sampleMem[memPos+i]=(((s->data8[i*2+0]+128)>>4)<<4&0xf0)|(((s->data8[i*2+1]+128)>>4)&0xf);
+      }
+      sampleLoaded[i]=true;
+    }
+    sampleOff[i]=memPos;
+    memCompo.entries.push_back(DivMemoryEntry(DIV_MEMORY_SAMPLE,"Sample",i,memPos,memPos+paddedLen));
+    memPos+=paddedLen;
+  }
+  sampleMemLen=memPos;
+
+  memCompo.capacity=65536;
+  memCompo.used=sampleMemLen;
+}
+
+bool DivPlatformSupervision::getDCOffRequired() {
+  return true;
+}
+
+int DivPlatformSupervision::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
+  parent=p;
+  dumpWrites=false;
+  skipRegisterWrites=false;
+  for (int i=0; i<4; i++) {
+    isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
+  }
+  sampleMem=svision.supervision_dma_mem;
+  dutySwap=0;
+  otherFlags=0;
+  sampleOffset=0;
+  sampleMemLen=0;
+  memset(sampleMem,0,65536);
+  svision.ch_mask=15;
+  svision.flags=1;
+  setFlags(flags);
+  reset();
+  return 4;
+}
+
+void DivPlatformSupervision::quit() {
+  for (int i=0; i<4; i++) {
+    delete oscBuf[i];
+  }
+}
+
+DivPlatformSupervision::~DivPlatformSupervision() {
+}

src/engine/platform/supervision.h

@@ -0,0 +1,104 @@
+/**
+ * Furnace Tracker - multi-system chiptune tracker
+ * Copyright (C) 2021-2024 tildearrow and contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _SUPERVISION_H
+#define _SUPERVISION_H
+
+#include "../dispatch.h"
+#include "../../fixedQueue.h"
+#include "sound/supervision.h"
+
+class DivPlatformSupervision: public DivDispatch {
+  struct Channel: public SharedChannel<signed char> {
+    unsigned int duty, len, pan, pcm; // pcm is channel 3 ONLY
+    int sample, hasOffset; // again, for channel 3 ONLY
+    bool setPos, kon, initWrite;
+    Channel():
+      SharedChannel<signed char>(63),
+      duty(0),
+      len(0x1f),
+      pan(3),
+      pcm(false),
+      hasOffset(0),
+      setPos(false),
+      kon(false),
+      initWrite(true) {}
+  };
+  Channel chan[4];
+  DivDispatchOscBuffer* oscBuf[4];
+  bool isMuted[4];
+  struct QueuedWrite {
+    unsigned char addr;
+    unsigned char val;
+    QueuedWrite(): addr(0), val(9) {}
+    QueuedWrite(unsigned char a, unsigned char v): addr(a), val(v) {}
+  };
+  FixedQueue<QueuedWrite,512> writes;
+
+  int curChan;
+  int tempL[32];
+  int tempR[32];
+  int coreQuality;
+  unsigned char regPool[64];
+  unsigned int sampleOff[256];
+  unsigned int sampleLen[256];
+  bool sampleLoaded[256];
+  DivMemoryComposition memCompo;
+  unsigned char* sampleMem;
+  size_t sampleMemLen;
+  unsigned char dutySwap;
+  unsigned char otherFlags;
+  unsigned int sampleOffset;
+  unsigned char noiseReg[3];
+  struct svision_t svision;
+
+  friend void putDispatchChip(void*,int);
+  friend void putDispatchChan(void*,int,int);
+  public:
+    void acquire(short** buf, size_t len);
+    int dispatch(DivCommand c);
+    void* getChanState(int chan);
+    DivMacroInt* getChanMacroInt(int ch);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
+    void reset();
+    void forceIns();
+    void tick(bool sysTick=true);
+    void muteChannel(int ch, bool mute);
+    int getOutputCount();
+    bool keyOffAffectsArp(int ch);
+    void setFlags(const DivConfig& flags);
+    void notifyInsDeletion(void* ins);
+    void poke(unsigned int addr, unsigned short val);
+    void poke(std::vector<DivRegWrite>& wlist);
+    const char** getRegisterSheet();
+    const void* getSampleMem(int index);
+    size_t getSampleMemCapacity(int index);
+    size_t getSampleMemUsage(int index);
+    bool isSampleLoaded(int index, int sample);
+    const DivMemoryComposition* getMemCompo(int index);
+    void renderSamples(int chipID);
+    bool getDCOffRequired();
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
+    void quit();
+    ~DivPlatformSupervision();
+};
+
+#endif

src/engine/platform/upd1771c.cpp

@@ -0,0 +1,366 @@
+/**
+ * Furnace Tracker - multi-system chiptune tracker
+ * Copyright (C) 2021-2024 tildearrow and contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "upd1771c.h"
+#include "../engine.h"
+#include "../../ta-log.h"
+#include "furIcons.h"
+#include <math.h>
+
+//#define rWrite(a,v) pendingWrites[a]=v;
+#define rWrite(a,v) if (!skipRegisterWrites) {writes.push(QueuedWrite(a,v)); if (dumpWrites) {addWrite(a,v);} }
+
+#define CHIP_DIVIDER 64
+
+const char* regCheatSheetUPD1771c[]={
+  NULL
+};
+
+const char** DivPlatformUPD1771c::getRegisterSheet() {
+  return regCheatSheetUPD1771c;
+}
+
+void DivPlatformUPD1771c::acquire(short** buf, size_t len) {
+  for (size_t h=0; h<len; h++) {
+    while (!writes.empty()) {
+      QueuedWrite w=writes.front();
+      upd1771c_write_packet(&scv,w.addr&15,w.val);
+      regPool[w.addr&0xf]=w.val;
+      writes.pop();
+    }
+
+    short s=upd1771c_sound_stream_update(&scv)<<3;
+    if (isMuted[0]) s=0;
+    oscBuf[0]->data[oscBuf[0]->needle++]=s;
+    buf[0][h]=s;
+    buf[1][h]=s;
+  }
+}
+
+void DivPlatformUPD1771c::tick(bool sysTick) {
+  for (int i=0; i<1; i++) {
+
+    chan[i].std.next();
+    if (chan[i].std.vol.had) {
+      chan[i].outVol=VOL_SCALE_LINEAR(chan[i].vol&31,MIN(31,chan[i].std.vol.val),31);
+    }
+    if (NEW_ARP_STRAT) {
+      chan[i].handleArp();
+    } else if (chan[i].std.arp.had) {
+      if (!chan[i].inPorta) {
+        int f=parent->calcArp(chan[i].note,chan[i].std.arp.val);
+        chan[i].baseFreq=NOTE_PERIODIC(f);
+      }
+      chan[i].freqChanged=true;
+    }
+    if (chan[i].std.wave.had) {
+      chan[i].wave=chan[i].std.wave.val&7;
+    }
+    if (chan[i].std.duty.had) {
+      chan[i].duty=chan[i].std.duty.val&1;
+    }
+    if (chan[i].std.ex1.had) {
+      chan[i].pos=chan[i].std.ex1.val&31;
+    }
+    if (chan[i].std.pitch.had) {
+      if (chan[i].std.pitch.mode) {
+        chan[i].pitch2+=chan[i].std.pitch.val;
+        CLAMP_VAR(chan[i].pitch2,-32768,32767);
+      } else {
+        chan[i].pitch2=chan[i].std.pitch.val;
+      }
+      chan[i].freqChanged=true;
+    }
+    if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
+      //DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_PCE);
+      if (i==0) {
+        chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
+      }
+      if (chan[i].freqChanged || initWrite[i] || chan[i].keyOn) {
+        if (chan[i].duty == 0) {
+          rWrite(0,2);
+          rWrite(1,(chan[i].wave<<5)|chan[i].pos);
+          float p = ((float)chan[i].freq)/((float)(31-chan[i].pos))*31.0;
+          rWrite(2,MIN(MAX((int)p,0),255));
+          rWrite(3,chan[i].outVol);
+        } else if (chan[i].duty == 1) {
+          rWrite(0,1);
+          rWrite(1,(chan[i].wave<<5));
+          rWrite(2,MIN(MAX(chan[i].freq>>7,0),255));
+          rWrite(3,chan[i].outVol);
+        } else {
+          rWrite(0,0);
+        }
+        initWrite[i]=0;
+      }
+      if (chan[i].keyOff) {
+        rWrite(0,0);
+      }
+      if (chan[i].keyOn) kon[i]=1;
+      if (chan[i].keyOff) kon[i]=0;
+      if (chan[i].keyOn) chan[i].keyOn=false;
+      if (chan[i].keyOff) chan[i].keyOff=false;
+      chan[i].freqChanged=false;
+    }
+
+    if (kon[i]) {
+      if (i==0) {
+        if (chan[i].duty == 0) {
+         rWrite(0,2);
+         rWrite(1,(chan[i].wave<<5)|chan[i].pos);
+         // TODO: improve
+         float p = ((float)chan[i].freq)/((float)(32-chan[i].pos))*32.0;
+         rWrite(2,MIN(MAX((int)p,0),255));
+         rWrite(3,chan[i].outVol);
+        } else if (chan[i].duty == 1) {
+         rWrite(0,1);
+         rWrite(1,(chan[i].wave<<5));
+         rWrite(2,MIN(MAX(chan[i].freq>>7,0),255));
+         rWrite(3,chan[i].outVol);
+        } else {
+         rWrite(0,0);
+        }
+      }
+    } else {
+      if (i == 0) {
+        rWrite(0,0);
+      }
+    }
+
+  }
+}
+
+int DivPlatformUPD1771c::dispatch(DivCommand c) {
+  switch (c.cmd) {
+    case DIV_CMD_NOTE_ON: {
+      DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_UPD1771C);
+      if (c.value!=DIV_NOTE_NULL) {
+        chan[c.chan].baseFreq=c.chan==3?c.value:NOTE_PERIODIC(c.value);
+        chan[c.chan].freqChanged=true;
+        chan[c.chan].note=c.value;
+      }
+      chan[c.chan].active=true;
+      chan[c.chan].keyOn=true;
+      //chwrite(c.chan,0x04,0x80|chan[c.chan].vol);
+      chan[c.chan].macroInit(ins);
+      if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
+        chan[c.chan].outVol=chan[c.chan].vol;
+      }
+      chan[c.chan].insChanged=false;
+      break;
+    }
+    case DIV_CMD_NOTE_OFF:
+      if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
+      chan[c.chan].active=false;
+      chan[c.chan].keyOff=true;
+      chan[c.chan].macroInit(NULL);
+      break;
+    case DIV_CMD_NOTE_OFF_ENV:
+    case DIV_CMD_ENV_RELEASE:
+      chan[c.chan].std.release();
+      break;
+    case DIV_CMD_INSTRUMENT:
+      if (chan[c.chan].ins!=c.value || c.value2==1) {
+        chan[c.chan].ins=c.value;
+        chan[c.chan].insChanged=true;
+      }
+      break;
+    case DIV_CMD_VOLUME:
+      if (chan[c.chan].vol!=c.value) {
+        chan[c.chan].vol=c.value;
+        if (!chan[c.chan].std.vol.has) {
+          chan[c.chan].outVol=c.value;
+          if (chan[c.chan].active) {
+            //chwrite(c.chan,0x04,0x80|chan[c.chan].outVol);
+          }
+        }
+      }
+      break;
+    case DIV_CMD_GET_VOLUME:
+      if (chan[c.chan].std.vol.has) {
+        return chan[c.chan].vol;
+      }
+      return chan[c.chan].outVol;
+      break;
+    case DIV_CMD_PITCH:
+      chan[c.chan].pitch=c.value;
+      chan[c.chan].freqChanged=true;
+      break;
+    case DIV_CMD_NOTE_PORTA: {
+      int destFreq=NOTE_PERIODIC(c.value2);
+      bool return2=false;
+      if (destFreq>chan[c.chan].baseFreq) {
+        chan[c.chan].baseFreq+=c.value;
+        if (chan[c.chan].baseFreq>=destFreq) {
+          chan[c.chan].baseFreq=destFreq;
+          return2=true;
+        }
+      } else {
+        chan[c.chan].baseFreq-=c.value;
+        if (chan[c.chan].baseFreq<=destFreq) {
+          chan[c.chan].baseFreq=destFreq;
+          return2=true;
+        }
+      }
+      chan[c.chan].freqChanged=true;
+      if (return2) {
+        chan[c.chan].inPorta=false;
+        return 2;
+      }
+      break;
+    }
+    case DIV_CMD_STD_NOISE_MODE:
+      chan[c.chan].wave=c.value&7;
+      chan[c.chan].duty=c.value>>4&1;
+      break;
+    case DIV_CMD_N163_WAVE_POSITION:
+      chan[c.chan].pos=c.value;
+      break;
+    case DIV_CMD_LEGATO:
+      chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val):(0)));
+      chan[c.chan].freqChanged=true;
+      chan[c.chan].note=c.value;
+      break;
+    case DIV_CMD_PRE_PORTA:
+      if (chan[c.chan].active && c.value2) {
+        if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_UPD1771C));
+      }
+      if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
+      chan[c.chan].inPorta=c.value;
+      break;
+    case DIV_CMD_GET_VOLMAX:
+      return 31;
+      break;
+    case DIV_CMD_MACRO_OFF:
+      chan[c.chan].std.mask(c.value,true);
+      break;
+    case DIV_CMD_MACRO_ON:
+      chan[c.chan].std.mask(c.value,false);
+      break;
+    case DIV_CMD_MACRO_RESTART:
+      chan[c.chan].std.restart(c.value);
+      break;
+    default:
+      break;
+  }
+  return 1;
+}
+
+void DivPlatformUPD1771c::muteChannel(int ch, bool mute) {
+  isMuted[ch]=mute;
+}
+
+void DivPlatformUPD1771c::forceIns() {
+  for (int i=0; i<1; i++) {
+    chan[i].insChanged=true;
+    chan[i].freqChanged=true;
+    //chwrite(i,0x05,isMuted[i]?0:chan[i].pan);
+  }
+}
+
+void* DivPlatformUPD1771c::getChanState(int ch) {
+  return &chan[ch];
+}
+
+DivMacroInt* DivPlatformUPD1771c::getChanMacroInt(int ch) {
+  return &chan[ch].std;
+}
+
+DivDispatchOscBuffer* DivPlatformUPD1771c::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
+unsigned char* DivPlatformUPD1771c::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformUPD1771c::getRegisterPoolSize() {
+  return 16;
+}
+
+void DivPlatformUPD1771c::reset() {
+  writes.clear();
+  memset(regPool,0,16);
+  for (int i=0; i<1; i++) {
+    chan[i]=DivPlatformUPD1771c::Channel();
+    chan[i].std.setEngine(parent);
+  }
+  if (dumpWrites) {
+    addWrite(0xffffffff,0);
+  }
+  upd1771c_reset(&scv);
+  memset(tempL,0,32*sizeof(int));
+  memset(tempR,0,32*sizeof(int));
+  memset(kon,0,1*sizeof(unsigned char));
+  memset(initWrite,1,1*sizeof(unsigned char));
+}
+
+int DivPlatformUPD1771c::getOutputCount() {
+  return 2;
+}
+
+bool DivPlatformUPD1771c::keyOffAffectsArp(int ch) {
+  return true;
+}
+
+void DivPlatformUPD1771c::notifyInsDeletion(void* ins) {
+  for (int i=0; i<1; i++) {
+    chan[i].std.notifyInsDeletion((DivInstrument*)ins);
+  }
+}
+
+void DivPlatformUPD1771c::setFlags(const DivConfig& flags) {
+  chipClock=6000000;
+  CHECK_CUSTOM_CLOCK;
+  rate=chipClock/32;
+  for (int i=0; i<1; i++) {
+    oscBuf[i]->rate=rate;
+  }
+  upd1771c_sound_set_clock(&scv,(unsigned int)chipClock,8);
+}
+
+void DivPlatformUPD1771c::poke(unsigned int addr, unsigned short val) {
+  rWrite(addr,val);
+}
+
+void DivPlatformUPD1771c::poke(std::vector<DivRegWrite>& wlist) {
+  for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
+}
+
+int DivPlatformUPD1771c::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
+  parent=p;
+  dumpWrites=false;
+  skipRegisterWrites=false;
+  for (int i=0; i<1; i++) {
+    isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
+  }
+  setFlags(flags);
+  reset();
+  return 1;
+}
+
+void DivPlatformUPD1771c::quit() {
+  for (int i=0; i<1; i++) {
+    delete oscBuf[i];
+  }
+}
+
+DivPlatformUPD1771c::~DivPlatformUPD1771c() {
+}

src/engine/platform/upd1771c.h

@@ -0,0 +1,84 @@
+/**
+ * Furnace Tracker - multi-system chiptune tracker
+ * Copyright (C) 2021-2024 tildearrow and contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _UPD1771C_H
+#define _UPD1771C_H
+
+#include "../dispatch.h"
+#include "../../fixedQueue.h"
+#include "sound/upd1771c.h"
+
+class DivPlatformUPD1771c: public DivDispatch {
+  struct Channel: public SharedChannel<signed char> {
+    unsigned int wave;
+    int pos, duty;
+    Channel():
+      SharedChannel<signed char>(15),
+      wave(0),
+      pos(0),
+      duty(0) {}
+  };
+  Channel chan[1];
+  DivDispatchOscBuffer* oscBuf[1];
+  bool isMuted[4];
+  struct QueuedWrite {
+    unsigned char addr;
+    unsigned char val;
+    QueuedWrite(): addr(0), val(9) {}
+    QueuedWrite(unsigned char a, unsigned char v): addr(a), val(v) {}
+  };
+  FixedQueue<QueuedWrite,512> writes;
+
+  int curChan;
+  int tempL[32];
+  int tempR[32];
+  int coreQuality;
+  unsigned char regPool[16];
+  unsigned char kon[1];
+  unsigned char initWrite[1];
+  struct upd1771c_t scv;
+
+
+  friend void putDispatchChip(void*,int);
+  friend void putDispatchChan(void*,int,int);
+  public:
+    void acquire(short** buf, size_t len);
+    int dispatch(DivCommand c);
+    void* getChanState(int chan);
+    DivMacroInt* getChanMacroInt(int ch);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
+    void reset();
+    void forceIns();
+    void tick(bool sysTick=true);
+    void muteChannel(int ch, bool mute);
+    int getOutputCount();
+    bool keyOffAffectsArp(int ch);
+    void setFlags(const DivConfig& flags);
+    void notifyInsDeletion(void* ins);
+    void poke(unsigned int addr, unsigned short val);
+    void poke(std::vector<DivRegWrite>& wlist);
+    const char** getRegisterSheet();
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
+    void quit();
+    ~DivPlatformUPD1771c();
+};
+
+#endif

src/engine/song.h

@@ -141,6 +141,8 @@ enum DivSystem {
   DIV_SYSTEM_5E01,
   DIV_SYSTEM_BIFURCATOR,
   DIV_SYSTEM_SID2,
+  DIV_SYSTEM_SUPERVISION,
+  DIV_SYSTEM_UPD1771C,
 
   DIV_SYSTEM_MAX
 };

src/engine/sysDef.cpp

@@ -1941,6 +1941,33 @@ void DivEngine::registerSystems() {
     {DIV_INS_AMIGA, DIV_INS_AMIGA, DIV_INS_AMIGA, DIV_INS_AMIGA}
   );
 
+  sysDefs[DIV_SYSTEM_SUPERVISION]=new DivSysDef(
+    _("Watara Supervision"), NULL, 0xe3, 0, 4, false, true, 0, false, 0, 0, 0,
+    _("a handheld that was trying to compete with the Game Boy, but it never succeded."),
+    {_("Pulse 1"), _("Pulse 2"), _("PCM"),  _("Noise")},
+    {"S1", "S2", "PCM", "NO"},
+    {DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PCM, DIV_CH_NOISE},
+    {DIV_INS_SUPERVISION, DIV_INS_SUPERVISION, DIV_INS_SUPERVISION, DIV_INS_SUPERVISION},
+    {DIV_INS_SUPERVISION, DIV_INS_SUPERVISION, DIV_INS_AMIGA, DIV_INS_SUPERVISION},
+    {
+      {0x12, {DIV_CMD_STD_NOISE_MODE, _("12xx: Set duty cycle/noise mode (pulse: 0 to 3; noise: 0 or 1)")}},
+    }
+  );
+
+  sysDefs[DIV_SYSTEM_UPD1771C]=new DivSysDef(
+    _("NEC μPD1771C"), NULL, 0xe4, 0, 1, false, true, 0, false, 0, 0, 0,
+    _("this was an SoC with some funky wavetable/noise hardware"),
+    {_("Wave/Noise")},
+    {"W"},
+    {DIV_CH_NOISE},
+    {DIV_INS_UPD1771C},
+    {},
+    {
+      {0x10, {DIV_CMD_STD_NOISE_MODE, _("10xx: Set duty/waveform (bit 0-3: waveform; bit 4: mode)")}},
+      {0x12, {DIV_CMD_N163_WAVE_POSITION, _("12xx: Set waveform position (0-31)")}},
+    }
+  );
+
   sysDefs[DIV_SYSTEM_SM8521]=new DivSysDef(
     _("Sharp SM8521"), NULL, 0xc8, 0, 3, false, true, 0, false, 0, 32, 16,
     _("a SoC with wavetable sound hardware."),

src/gui/debug.cpp

@@ -51,6 +51,7 @@
 #include "../engine/platform/pcmdac.h"
 #include "../engine/platform/k007232.h"
 #include "../engine/platform/ga20.h"
+#include "../engine/platform/supervision.h"
 #include "../engine/platform/sm8521.h"
 #include "../engine/platform/pv1000.h"
 #include "../engine/platform/k053260.h"

src/gui/gui.h

@@ -354,6 +354,8 @@ enum FurnaceGUIColors {
   GUI_COLOR_INSTR_GBA_MINMOD,
   GUI_COLOR_INSTR_BIFURCATOR,
   GUI_COLOR_INSTR_SID2,
+  GUI_COLOR_INSTR_SUPERVISION,
+  GUI_COLOR_INSTR_UPD1771C,
   GUI_COLOR_INSTR_UNKNOWN,
 
   GUI_COLOR_CHANNEL_BG,

src/gui/guiConst.cpp

@@ -184,6 +184,8 @@ const char* insTypes[DIV_INS_MAX+1][3]={
   {"GBA MinMod",ICON_FA_VOLUME_UP,ICON_FUR_INS_GBA_MINMOD},
   {"Bifurcator",ICON_FA_LINE_CHART,ICON_FUR_INS_BIFURCATOR},
   {"SID2",ICON_FA_KEYBOARD_O,ICON_FUR_INS_SID2},
+  {"Watara Supervision",ICON_FA_GAMEPAD,ICON_FUR_INS_SUPERVISION},
+  {"NEC μPD1771C",ICON_FA_BAR_CHART,ICON_FUR_INS_UPD1771C},
   {NULL,ICON_FA_QUESTION,ICON_FA_QUESTION}
 };
 
@@ -1018,6 +1020,8 @@ const FurnaceGUIColorDef guiColors[GUI_COLOR_MAX]={
   D(GUI_COLOR_INSTR_GBA_MINMOD,"",ImVec4(0.5f,0.45f,0.7f,1.0f)),
   D(GUI_COLOR_INSTR_BIFURCATOR,"",ImVec4(0.8925f,0.8925f,0.8925f,1.0f)),
   D(GUI_COLOR_INSTR_SID2,"",ImVec4(0.6f,0.75f,1.0f,1.0f)),
+  D(GUI_COLOR_INSTR_SUPERVISION,"",ImVec4(0.52f,1.0f,0.6f,1.0f)),
+  D(GUI_COLOR_INSTR_UPD1771C,"",ImVec4(0.94f,0.52f,0.6f,1.0f)),
   D(GUI_COLOR_INSTR_UNKNOWN,"",ImVec4(0.3f,0.3f,0.3f,1.0f)),
 
   D(GUI_COLOR_CHANNEL_BG,"",ImVec4(0.4f,0.6f,0.8f,1.0f)),
@@ -1268,6 +1272,8 @@ const int availableSystems[]={
   DIV_SYSTEM_SID2,
   DIV_SYSTEM_OPL4,
   DIV_SYSTEM_OPL4_DRUMS,
+  DIV_SYSTEM_SUPERVISION,
+  DIV_SYSTEM_UPD1771C,
   0 // don't remove this last one!
 };
 
@@ -1365,6 +1371,8 @@ const int chipsSpecial[]={
   DIV_SYSTEM_5E01,
   DIV_SYSTEM_BIFURCATOR,
   DIV_SYSTEM_SID2,
+  DIV_SYSTEM_SUPERVISION,
+  DIV_SYSTEM_UPD1771C,
   0 // don't remove this last one!
 };
 

src/gui/insEdit.cpp

@@ -2667,7 +2667,8 @@ void FurnaceGUI::insTabSample(DivInstrument* ins) {
         ins->type==DIV_INS_AY8930 ||
         ins->type==DIV_INS_VRC6 ||
         ins->type==DIV_INS_SU ||
-        ins->type==DIV_INS_NDS) {
+        ins->type==DIV_INS_NDS || 
+        ins->type==DIV_INS_SUPERVISION) {
       P(ImGui::Checkbox(_("Use sample"),&ins->amiga.useSample));
       if (ins->type==DIV_INS_X1_010) {
         if (ImGui::InputInt(_("Sample bank slot##BANKSLOT"),&ins->x1_010.bankSlot,1,4)) { PARAMETER
@@ -6253,7 +6254,8 @@ void FurnaceGUI::drawInsEdit() {
             ins->type==DIV_INS_C219 ||
             ins->type==DIV_INS_NDS ||
             ins->type==DIV_INS_GBA_DMA ||
-            ins->type==DIV_INS_GBA_MINMOD) {
+            ins->type==DIV_INS_GBA_MINMOD ||
+            ins->type==DIV_INS_SUPERVISION) {
           insTabSample(ins);
         }
         if (ins->type==DIV_INS_N163) if (ImGui::BeginTabItem("Namco 163")) {
@@ -7427,6 +7429,13 @@ void FurnaceGUI::drawInsEdit() {
               macroList.push_back(FurnaceGUIMacroDesc(_("Pulse Width"),&ins->std.dutyMacro,0,255,160,uiColors[GUI_COLOR_MACRO_OTHER]));
               macroList.push_back(FurnaceGUIMacroDesc(_("Pitch"),&ins->std.pitchMacro,-2048,2047,160,uiColors[GUI_COLOR_MACRO_PITCH],true,macroRelativeMode));
               break;
+            case DIV_INS_SUPERVISION:
+              macroList.push_back(FurnaceGUIMacroDesc(_("Volume"),&ins->std.volMacro,0,15,160,uiColors[GUI_COLOR_MACRO_VOLUME]));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Arpeggio"),&ins->std.arpMacro,-120,120,160,uiColors[GUI_COLOR_MACRO_PITCH],true,NULL,macroHoverNote,false,NULL,true,ins->std.arpMacro.val));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Duty/Noise"),&ins->std.dutyMacro,0,3,160,uiColors[GUI_COLOR_MACRO_NOISE]));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Noise/PCM Pan"),&ins->std.panLMacro,0,2,32,uiColors[GUI_COLOR_MACRO_OTHER],false,NULL,NULL,true,panBits));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Pitch"),&ins->std.pitchMacro,-2048,2047,160,uiColors[GUI_COLOR_MACRO_PITCH],true,macroRelativeMode));
+              break;
             case DIV_INS_SM8521:
               macroList.push_back(FurnaceGUIMacroDesc(_("Volume"),&ins->std.volMacro,0,31,160,uiColors[GUI_COLOR_MACRO_VOLUME]));
               macroList.push_back(FurnaceGUIMacroDesc(_("Arpeggio"),&ins->std.arpMacro,-120,120,160,uiColors[GUI_COLOR_MACRO_PITCH],true,NULL,macroHoverNote,false,NULL,true,ins->std.arpMacro.val));
@@ -7569,7 +7578,14 @@ void FurnaceGUI::drawInsEdit() {
               macroList.push_back(FurnaceGUIMacroDesc(_("Noise Mode"),&ins->std.fmsMacro,0,3,64,uiColors[GUI_COLOR_MACRO_NOISE]));
               macroList.push_back(FurnaceGUIMacroDesc(_("Wave Mix"),&ins->std.amsMacro,0,3,64,uiColors[GUI_COLOR_MACRO_OTHER]));
               break;
-
+            case DIV_INS_UPD1771C:
+              macroList.push_back(FurnaceGUIMacroDesc(_("Volume"),&ins->std.volMacro,0,31,160,uiColors[GUI_COLOR_MACRO_VOLUME]));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Arpeggio"),&ins->std.arpMacro,-120,120,160,uiColors[GUI_COLOR_MACRO_PITCH],true,NULL,macroHoverNote,false,NULL,true,ins->std.arpMacro.val));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Waveform"),&ins->std.waveMacro,0,7,160,uiColors[GUI_COLOR_MACRO_WAVE],false,NULL,NULL,false,NULL));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Wave Pos"),&ins->std.ex1Macro,0,31,160,uiColors[GUI_COLOR_MACRO_OTHER]));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Duty/Mode"),&ins->std.dutyMacro,0,1,160,uiColors[GUI_COLOR_MACRO_NOISE]));
+              macroList.push_back(FurnaceGUIMacroDesc(_("Pitch"),&ins->std.pitchMacro,-2048,2047,160,uiColors[GUI_COLOR_MACRO_PITCH],true,macroRelativeMode));
+              break;
             case DIV_INS_MAX:
             case DIV_INS_NULL:
               break;

src/gui/presets.cpp

@@ -320,6 +320,11 @@ void FurnaceGUI::initSystemPresets() {
       CH(DIV_SYSTEM_NDS, 1.0f, 0, "")
     }
   );
+  ENTRY(
+    "Watara Supervision", {
+      CH(DIV_SYSTEM_SUPERVISION, 1.0f, 0, "")
+    }
+  );
   CATEGORY_END;
 
   CATEGORY_BEGIN("Computers","let's get to work on chiptune today.");
@@ -1331,6 +1336,11 @@ void FurnaceGUI::initSystemPresets() {
      )
    }
  );
+  ENTRY(
+    "Epoch Super Cassette Vision", {
+      CH(DIV_SYSTEM_UPD1771C, 1.0f, 0, "")
+    }
+  );
   CATEGORY_END;
 
   CATEGORY_BEGIN("Arcade systems","INSERT COIN");
@@ -3176,6 +3186,16 @@ void FurnaceGUI::initSystemPresets() {
       CH(DIV_SYSTEM_SID2, 1.0f, 0, "")
     }
   );
+  ENTRY(
+    "Watara Supervision", {
+      CH(DIV_SYSTEM_SUPERVISION, 1.0f, 0, "")
+    }
+  );
+  ENTRY(
+    "NEC μPD1771C", {
+      CH(DIV_SYSTEM_UPD1771C, 1.0f, 0, "")
+    }
+  );
   CATEGORY_END;
 
   CATEGORY_BEGIN("DefleMask-compatible","these configurations are compatible with DefleMask.\nselect this if you need to save as .dmf or work with that program.");

src/gui/sampleEdit.cpp

@@ -419,6 +419,19 @@ void FurnaceGUI::drawSampleEdit() {
               SAMPLE_WARN(warnLength,_("OPL4: maximum sample length is 65535"));
             }
             break;
+          case DIV_SYSTEM_SUPERVISION:
+            if (sample->loop) {
+              if (sample->loopStart!=0 || sample->loopEnd!=(int)(sample->samples)) {
+                SAMPLE_WARN(warnLoopPos,_("Supervision: loop point ignored on sample channel"));
+              }
+            }
+            if (sample->samples&31) {
+              SAMPLE_WARN(warnLength,_("Supervision: sample length will be padded to multiple of 32"));
+            }
+            if (sample->samples>8192) {
+              SAMPLE_WARN(warnLength,_("Supervision: maximum sample length is 8192"));
+            }
+            break;
           default:
             break;
         }

src/gui/settings.cpp

@@ -4144,6 +4144,8 @@ void FurnaceGUI::drawSettings() {
           UI_COLOR_CONFIG(GUI_COLOR_INSTR_GBA_MINMOD,_("GBA MinMod"));
           UI_COLOR_CONFIG(GUI_COLOR_INSTR_BIFURCATOR,_("Bifurcator"));
           UI_COLOR_CONFIG(GUI_COLOR_INSTR_SID2,_("SID2"));
+          UI_COLOR_CONFIG(GUI_COLOR_INSTR_SUPERVISION,_("Supervision"));
+          UI_COLOR_CONFIG(GUI_COLOR_INSTR_UPD1771C,_("μPD1771C"));
           UI_COLOR_CONFIG(GUI_COLOR_INSTR_UNKNOWN,_("Other/Unknown"));
           ImGui::TreePop();
         }

src/gui/sysConf.cpp

@@ -2330,6 +2330,29 @@ bool FurnaceGUI::drawSysConf(int chan, int sysPos, DivSystem type, DivConfig& fl
       }
       break;
     }
+    case DIV_SYSTEM_SUPERVISION: {
+      bool swapDuty=flags.getInt("swapDuty",true);
+
+      if (ImGui::Checkbox(_("Swap noise duty cycles"),&swapDuty)) {
+        altered=true;
+      }
+
+      bool sqStereo=flags.getInt("sqStereo",false);
+
+      if (ImGui::Checkbox(_("Stereo pulse waves"),&sqStereo)) {
+        altered=true;
+      }
+
+      if (altered) {
+        e->lockSave([&]() {
+          flags.set("swapDuty",(int)swapDuty);
+        });
+        e->lockSave([&]() {
+          flags.set("sqStereo",(int)sqStereo);
+        });
+      }
+      break;
+    }
     case DIV_SYSTEM_SM8521:/*  {
       bool noAntiClick=flags.getBool("noAntiClick",false);
 
@@ -2589,6 +2612,7 @@ bool FurnaceGUI::drawSysConf(int chan, int sysPos, DivSystem type, DivConfig& fl
     case DIV_SYSTEM_C219:
     case DIV_SYSTEM_BIFURCATOR:
     case DIV_SYSTEM_POWERNOISE:
+    case DIV_SYSTEM_UPD1771C:
       break;
     case DIV_SYSTEM_YMU759:
     case DIV_SYSTEM_ESFM:

src/gui/sysPartNumber.cpp

@@ -279,6 +279,12 @@ const char* FurnaceGUI::getSystemPartNumber(DivSystem sys, DivConfig& flags) {
       break;
     case DIV_SYSTEM_ESFM:
       return "ES1xxx";
+    case DIV_SYSTEM_SUPERVISION:
+      return "Watara Supervision";
+      break;
+    case DIV_SYSTEM_UPD1771C:
+      return "μPD1771C";
+      break;
     default:
       return FurnaceGUI::getSystemName(sys);
       break;

src/icon/furIcons.h

@@ -75,6 +75,8 @@
 #define ICON_FUR_INS_GBA_MINMOD u8"\ue15f"
 #define ICON_FUR_INS_BIFURCATOR u8"\ue160"
 #define ICON_FUR_INS_SID2 u8"\ue161"
+#define ICON_FUR_INS_SUPERVISION u8"\ue162"
+#define ICON_FUR_INS_UPD1771C u8"\ue163"
 
 // sample editor
 #define ICON_FUR_SAMPLE_APPLY_SILENCE u8"\ue136"