add register view

supported chips only.

src/engine/dispatch.h

@@ -206,13 +206,25 @@ class DivDispatch {
     virtual void* getChanState(int chan);
     
     /**
-     * get this dispatch's state.
+     * get the register pool of this dispatch.
+     * @return a pointer, or NULL.
+     */
+    virtual unsigned char* getRegisterPool();
+
+    /**
+     * get the size of the register pool of this dispatch.
+     * @return the size.
+     */
+    virtual int getRegisterPoolSize();
+
+    /**
+     * get this dispatch's state. DO NOT IMPLEMENT YET.
      * @return a pointer to the dispatch's state. must be deallocated manually!
      */
     virtual void* getState();
 
     /**
-     * set this dispatch's state.
+     * set this dispatch's state. DO NOT IMPLEMENT YET.
      * @param state a pointer to a state pertaining to this dispatch,
      * or NULL if this dispatch does not support state saves.
      */

src/engine/engine.cpp

@@ -728,6 +728,13 @@ void* DivEngine::getDispatchChanState(int ch) {
   return disCont[dispatchOfChan[ch]].dispatch->getChanState(dispatchChanOfChan[ch]);
 }
 
+unsigned char* DivEngine::getRegisterPool(int sys, int& size) {
+  if (sys<0 || sys>=song.systemLen) return NULL;
+  if (disCont[sys].dispatch==NULL) return NULL;
+  size=disCont[sys].dispatch->getRegisterPoolSize();
+  return disCont[sys].dispatch->getRegisterPool();
+}
+
 void DivEngine::enableCommandStream(bool enable) {
   cmdStreamEnabled=enable;
 }

src/engine/engine.h

@@ -530,6 +530,9 @@ class DivEngine {
     // get dispatch channel state
     void* getDispatchChanState(int chan);
     
+    // get register pool
+    unsigned char* getRegisterPool(int sys, int& size);
+
     // enable command stream dumping
     void enableCommandStream(bool enable);
 

src/engine/platform/abstract.cpp

@@ -29,6 +29,14 @@ void* DivDispatch::getChanState(int chan) {
   return NULL;
 }
 
+unsigned char* DivDispatch::getRegisterPool() {
+  return NULL;
+}
+
+int DivDispatch::getRegisterPoolSize() {
+  return 0;
+}
+
 void* DivDispatch::getState() {
   return NULL;
 }

src/engine/platform/arcade.cpp

@@ -145,6 +145,7 @@ void DivPlatformArcade::acquire_nuked(short* bufL, short* bufR, size_t start, si
       QueuedWrite& w=writes.front();
       if (w.addrOrVal) {
         OPM_Write(&fm,1,w.val);
+        regPool[w.addr&0xff]=w.val;
         //printf("write: %x = %.2x\n",w.addr,w.val);
         writes.pop();
       } else {
@@ -216,6 +217,7 @@ void DivPlatformArcade::acquire_ymfm(short* bufL, short* bufR, size_t start, siz
         QueuedWrite& w=writes.front();
         fm_ymfm->write(0x0+((w.addr>>8)<<1),w.addr);
         fm_ymfm->write(0x1+((w.addr>>8)<<1),w.val);
+        regPool[w.addr&0xff]=w.val;
         writes.pop();
         delay=1;
       }
@@ -877,6 +879,14 @@ void* DivPlatformArcade::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformArcade::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformArcade::getRegisterPoolSize() {
+  return 256;
+}
+
 void DivPlatformArcade::poke(unsigned int addr, unsigned short val) {
   immWrite(addr,val);
 }
@@ -887,6 +897,7 @@ void DivPlatformArcade::poke(std::vector<DivRegWrite>& wlist) {
 
 void DivPlatformArcade::reset() {
   while (!writes.empty()) writes.pop();
+  memset(regPool,0,256);
   if (useYMFM) {
     fm_ymfm->reset();
   } else {

src/engine/platform/arcade.h

@@ -71,6 +71,8 @@ class DivPlatformArcade: public DivDispatch {
     ymfm::ym2151::output_data out_ymfm;
     DivArcadeInterface iface;
 
+    unsigned char regPool[256];
+
     bool extMode, useYMFM;
 
     bool isMuted[13];
@@ -90,6 +92,8 @@ class DivPlatformArcade: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/ay.cpp

@@ -94,6 +94,7 @@ void DivPlatformAY8910::acquire(short* bufL, short* bufR, size_t start, size_t l
     QueuedWrite w=writes.front();
     ay->address_w(w.addr);
     ay->data_w(w.val);
+    regPool[w.addr&0x0f]=w.val;
     writes.pop();
   }
   ay->sound_stream_update(ayBuf,len);
@@ -400,9 +401,18 @@ void* DivPlatformAY8910::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformAY8910::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformAY8910::getRegisterPoolSize() {
+  return 16;
+}
+
 void DivPlatformAY8910::reset() {
   while (!writes.empty()) writes.pop();
   ay->device_reset();
+  memset(regPool,0,16);
   for (int i=0; i<3; i++) {
     chan[i]=DivPlatformAY8910::Channel();
     chan[i].vol=0x0f;

src/engine/platform/ay.h

@@ -47,6 +47,7 @@ class DivPlatformAY8910: public DivDispatch {
     };
     std::queue<QueuedWrite> writes;
     ay8910_device* ay;
+    unsigned char regPool[16];
     unsigned char lastBusy;
   
     bool dacMode;
@@ -76,6 +77,8 @@ class DivPlatformAY8910: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/ay8930.cpp

@@ -124,6 +124,7 @@ void DivPlatformAY8930::acquire(short* bufL, short* bufR, size_t start, size_t l
     } else {
       ay->data_w(w.val);
     }
+    regPool[w.addr&0x1f]=w.val;
     writes.pop();
   }
   ay->sound_stream_update(ayBuf,len);
@@ -462,9 +463,18 @@ void* DivPlatformAY8930::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformAY8930::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformAY8930::getRegisterPoolSize() {
+  return 32;
+}
+
 void DivPlatformAY8930::reset() {
   while (!writes.empty()) writes.pop();
   ay->device_reset();
+  memset(regPool,0,32);
   for (int i=0; i<3; i++) {
     chan[i]=DivPlatformAY8930::Channel();
     chan[i].vol=31;

src/engine/platform/ay8930.h

@@ -47,6 +47,7 @@ class DivPlatformAY8930: public DivDispatch {
     };
     std::queue<QueuedWrite> writes;
     ay8930_device* ay;
+    unsigned char regPool[32];
     unsigned char ayNoiseAnd, ayNoiseOr;
     bool bank;
 
@@ -69,6 +70,8 @@ class DivPlatformAY8930: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/c64.cpp

@@ -21,7 +21,7 @@
 #include "../engine.h"
 #include <math.h>
 
-#define rWrite(a,v) if (!skipRegisterWrites) {sid.write(a,v); if (dumpWrites) {addWrite(a,v);} }
+#define rWrite(a,v) if (!skipRegisterWrites) {sid.write(a,v); regPool[(a)&0x1f]=v; if (dumpWrites) {addWrite(a,v);} }
 
 #define CHIP_FREQBASE 524288
 
@@ -467,12 +467,21 @@ void* DivPlatformC64::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformC64::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformC64::getRegisterPoolSize() {
+  return 32;
+}
+
 void DivPlatformC64::reset() {
   for (int i=0; i<3; i++) {
     chan[i]=DivPlatformC64::Channel();
   }
 
   sid.reset();
+  memset(regPool,0,32);
 
   rWrite(0x18,0x0f);
 

src/engine/platform/c64.h

@@ -70,6 +70,7 @@ class DivPlatformC64: public DivDispatch {
   int filtCut, resetTime;
 
   SID sid;
+  unsigned char regPool[32];
 
   friend void putDispatchChan(void*,int,int);
 
@@ -78,6 +79,8 @@ class DivPlatformC64: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/gb.cpp

@@ -21,8 +21,8 @@
 #include "../engine.h"
 #include <math.h>
 
-#define rWrite(a,v) if (!skipRegisterWrites) {GB_apu_write(gb,a,v); if (dumpWrites) {addWrite(a,v);} }
-#define immWrite(a,v) {GB_apu_write(gb,a,v); if (dumpWrites) {addWrite(a,v);} }
+#define rWrite(a,v) if (!skipRegisterWrites) {GB_apu_write(gb,a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
+#define immWrite(a,v) {GB_apu_write(gb,a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
 
 #define CHIP_DIVIDER 16
 
@@ -395,6 +395,14 @@ void* DivPlatformGB::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformGB::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformGB::getRegisterPoolSize() {
+  return 64;
+}
+
 void DivPlatformGB::reset() {
   for (int i=0; i<4; i++) {
     chan[i]=DivPlatformGB::Channel();
@@ -403,6 +411,7 @@ void DivPlatformGB::reset() {
     addWrite(0xffffffff,0);
   }
   memset(gb,0,sizeof(GB_gameboy_t));
+  memset(regPool,0,128);
   gb->model=GB_MODEL_DMG_B;
   GB_apu_init(gb);
   GB_set_sample_rate(gb,rate);

src/engine/platform/gb.h

@@ -55,6 +55,8 @@ class DivPlatformGB: public DivDispatch {
   unsigned char lastPan;
 
   GB_gameboy_t* gb;
+  unsigned char regPool[128];
+  
   unsigned char procMute();
   void updateWave();
   friend void putDispatchChan(void*,int,int);
@@ -62,6 +64,8 @@ class DivPlatformGB: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/genesis.cpp

@@ -121,6 +121,7 @@ void DivPlatformGenesis::acquire_nuked(short* bufL, short* bufR, size_t start, s
           OPN2_Write(&fm,0x1+((w.addr>>8)<<1),w.val);
           //printf("write: %x = %.2x\n",w.addr,w.val);
           lastBusy=0;
+          regPool[w.addr&0x1ff]=w.val;
           writes.pop();
         } else {
           lastBusy++;
@@ -190,6 +191,7 @@ void DivPlatformGenesis::acquire_ymfm(short* bufL, short* bufR, size_t start, si
       QueuedWrite& w=writes.front();
       fm_ymfm->write(0x0+((w.addr>>8)<<1),w.addr);
       fm_ymfm->write(0x1+((w.addr>>8)<<1),w.val);
+      regPool[w.addr&0x1ff]=w.val;
       writes.pop();
       lastBusy=1;
     }
@@ -805,8 +807,17 @@ void* DivPlatformGenesis::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformGenesis::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformGenesis::getRegisterPoolSize() {
+  return 512;
+}
+
 void DivPlatformGenesis::reset() {
   while (!writes.empty()) writes.pop();
+  memset(regPool,0,512);
   if (useYMFM) {
     fm_ymfm->reset();
   }

src/engine/platform/genesis.h

@@ -79,6 +79,7 @@ class DivPlatformGenesis: public DivDispatch {
     ymfm::ym2612* fm_ymfm;
     ymfm::ym2612::output_data out_ymfm;
     DivYM2612Interface iface;
+    unsigned char regPool[512];
   
     bool dacMode;
     int dacPeriod;
@@ -106,6 +107,8 @@ class DivPlatformGenesis: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/nes.cpp

@@ -25,7 +25,7 @@
 
 #define CHIP_DIVIDER 16
 
-#define rWrite(a,v) if (!skipRegisterWrites) {apu_wr_reg(nes,a,v); if (dumpWrites) {addWrite(a,v);} }
+#define rWrite(a,v) if (!skipRegisterWrites) {apu_wr_reg(nes,a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
 
 const char* regCheatSheetNES[]={
   "S0Volume", "4000",
@@ -444,6 +444,14 @@ void* DivPlatformNES::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformNES::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformNES::getRegisterPoolSize() {
+  return 32;
+}
+
 void DivPlatformNES::reset() {
   for (int i=0; i<5; i++) {
     chan[i]=DivPlatformNES::Channel();
@@ -459,6 +467,7 @@ void DivPlatformNES::reset() {
   sampleBank=0;
 
   apu_turn_on(nes,apuType);
+  memset(regPool,0,128);
   nes->apu.cpu_cycles=0;
   nes->apu.cpu_opcode_cycle=0;
 

src/engine/platform/nes.h

@@ -59,6 +59,7 @@ class DivPlatformNES: public DivDispatch {
   unsigned char sampleBank;
   unsigned char apuType;
   struct NESAPU* nes;
+  unsigned char regPool[128];
 
   friend void putDispatchChan(void*,int,int);
 
@@ -66,6 +67,8 @@ class DivPlatformNES: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/pce.cpp

@@ -29,6 +29,7 @@
       curChan=c; \
       rWrite(0,curChan); \
     } \
+    regPool[16+((c)<<4)+((a)&0x0f)]=v; \
     rWrite(a,v); \
   }
 
@@ -110,6 +111,7 @@ void DivPlatformPCE::acquire(short* bufL, short* bufR, size_t start, size_t len)
     while (!writes.empty() && cycles<24) {
       QueuedWrite w=writes.front();
       pce->Write(cycles,w.addr,w.val);
+      regPool[w.addr&0x0f]=w.val;
       //cycles+=2;
       writes.pop();
     }
@@ -442,8 +444,17 @@ void* DivPlatformPCE::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformPCE::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformPCE::getRegisterPoolSize() {
+  return 112;
+}
+
 void DivPlatformPCE::reset() {
   while (!writes.empty()) writes.pop();
+  memset(regPool,0,128);
   for (int i=0; i<6; i++) {
     chan[i]=DivPlatformPCE::Channel();
   }

src/engine/platform/pce.h

@@ -74,12 +74,15 @@ class DivPlatformPCE: public DivDispatch {
   int tempR[32];
   unsigned char sampleBank, lfoMode, lfoSpeed;
   PCE_PSG* pce;
+  unsigned char regPool[128];
   void updateWave(int ch);
   friend void putDispatchChan(void*,int,int);
   public:
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/saa.cpp

@@ -83,6 +83,7 @@ void DivPlatformSAA1099::acquire_mame(short* bufL, short* bufR, size_t start, si
     QueuedWrite w=writes.front();
     saa.control_w(w.addr);
     saa.data_w(w.val);
+    regPool[w.addr&0x1f]=w.val;
     writes.pop();
   }
   saa.sound_stream_update(saaBuf,len);
@@ -103,6 +104,7 @@ void DivPlatformSAA1099::acquire_saaSound(short* bufL, short* bufR, size_t start
   while (!writes.empty()) {
     QueuedWrite w=writes.front();
     saa_saaSound->WriteAddressData(w.addr,w.val);
+    regPool[w.addr&0x1f]=w.val;
     writes.pop();
   }
   saa_saaSound->GenerateMany((unsigned char*)saaBuf[0],len);
@@ -367,8 +369,17 @@ void* DivPlatformSAA1099::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformSAA1099::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformSAA1099::getRegisterPoolSize() {
+  return 32;
+}
+
 void DivPlatformSAA1099::reset() {
   while (!writes.empty()) writes.pop();
+  memset(regPool,0,32);
   switch (core) {
     case DIV_SAA_CORE_MAME:
       saa=saa1099_device();

src/engine/platform/saa.h

@@ -56,6 +56,7 @@ class DivPlatformSAA1099: public DivDispatch {
     DivSAACores core;
     saa1099_device saa;
     CSAASound* saa_saaSound;
+    unsigned char regPool[32];
     unsigned char lastBusy;
   
     bool dacMode;
@@ -85,6 +86,8 @@ class DivPlatformSAA1099: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/tia.cpp

@@ -22,7 +22,7 @@
 #include <string.h>
 #include <math.h>
 
-#define rWrite(a,v) if (!skipRegisterWrites) {tia.set(a,v); if (dumpWrites) {addWrite(a,v);} }
+#define rWrite(a,v) if (!skipRegisterWrites) {tia.set(a,v); regPool[((a)-0x15)&0x0f]=v; if (dumpWrites) {addWrite(a,v);} }
 
 const char* regCheatSheetTIA[]={
   "AUDC0", "15",
@@ -281,8 +281,17 @@ void* DivPlatformTIA::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformTIA::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformTIA::getRegisterPoolSize() {
+  return 6;
+}
+
 void DivPlatformTIA::reset() {
   tia.reset();
+  memset(regPool,0,16);
   for (int i=0; i<2; i++) {
     chan[i]=DivPlatformTIA::Channel();
     chan[i].vol=0x0f;

src/engine/platform/tia.h

@@ -38,6 +38,7 @@ class DivPlatformTIA: public DivDispatch {
     Channel chan[2];
     bool isMuted[2];
     TIASound tia;
+    unsigned char regPool[16];
     friend void putDispatchChan(void*,int,int);
 
     unsigned char dealWithFreq(unsigned char shape, int base, int pitch);
@@ -46,6 +47,8 @@ class DivPlatformTIA: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/engine/platform/ym2610.cpp

@@ -111,6 +111,7 @@ void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t l
         QueuedWrite& w=writes.front();
         fm->write(0x0+((w.addr>>8)<<1),w.addr);
         fm->write(0x1+((w.addr>>8)<<1),w.val);
+        regPool[w.addr&0x1ff]=w.val;
         writes.pop();
         delay=4;
       }
@@ -848,6 +849,14 @@ void* DivPlatformYM2610::getChanState(int ch) {
   return &chan[ch];
 }
 
+unsigned char* DivPlatformYM2610::getRegisterPool() {
+  return regPool;
+}
+
+int DivPlatformYM2610::getRegisterPoolSize() {
+  return 512;
+}
+
 void DivPlatformYM2610::poke(unsigned int addr, unsigned short val) {
   immWrite(addr,val);
 }
@@ -858,6 +867,7 @@ void DivPlatformYM2610::poke(std::vector<DivRegWrite>& wlist) {
 
 void DivPlatformYM2610::reset() {
   while (!writes.empty()) writes.pop();
+  memset(regPool,0,512);
   if (dumpWrites) {
     addWrite(0xffffffff,0);
   }

src/engine/platform/ym2610.h

@@ -59,6 +59,7 @@ class DivPlatformYM2610: public DivDispatch {
     ymfm::ym2610* fm;
     ymfm::ym2610::output_data fmout;
     DivYM2610Interface iface;
+    unsigned char regPool[512];
     unsigned char lastBusy;
   
     bool dacMode;
@@ -88,6 +89,8 @@ class DivPlatformYM2610: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
     void reset();
     void forceIns();
     void tick();

src/gui/gui.cpp

@@ -2039,6 +2039,49 @@ void FurnaceGUI::drawChannels() {
   ImGui::End();
 }
 
+void FurnaceGUI::drawRegView() {
+  if (nextWindow==GUI_WINDOW_REGISTER_VIEW) {
+    channelsOpen=true;
+    ImGui::SetNextWindowFocus();
+    nextWindow=GUI_WINDOW_NOTHING;
+  }
+  if (!regViewOpen) return;
+  if (ImGui::Begin("Register View",&regViewOpen)) {
+    for (int i=0; i<e->song.systemLen; i++) {
+      ImGui::Text("%d. %s",i+1,getSystemName(e->song.system[i]));
+      int size=0;
+      unsigned char* regPool=e->getRegisterPool(i,size);
+      if (regPool==NULL) {
+        ImGui::Text("- no register pool available");
+      } else {
+        ImGui::PushFont(patFont);
+        if (ImGui::BeginTable("Memory",17)) {
+          ImGui::TableNextRow();
+          ImGui::TableNextColumn();
+          for (int i=0; i<16; i++) {
+            ImGui::TableNextColumn();
+            ImGui::TextColored(uiColors[GUI_COLOR_PATTERN_ROW_INDEX]," %X",i);
+          }
+          for (int i=0; i<=((size-1)>>4); i++) {
+            ImGui::TableNextRow();
+            ImGui::TableNextColumn();
+            ImGui::TextColored(uiColors[GUI_COLOR_PATTERN_ROW_INDEX],"%.2X",i*16);
+            for (int j=0; j<16; j++) {
+              ImGui::TableNextColumn();
+              if (i*16+j>=size) continue;
+              ImGui::Text("%.2x",regPool[i*16+j]);
+            }
+          }
+          ImGui::EndTable();
+        }
+        ImGui::PopFont();
+      }
+    }
+  }
+  if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_REGISTER_VIEW;
+  ImGui::End();
+}
+
 void FurnaceGUI::startSelection(int xCoarse, int xFine, int y) {
   if (xCoarse!=selStart.xCoarse || xFine!=selStart.xFine || y!=selStart.y) {
     curNibble=false;
@@ -3052,6 +3095,9 @@ void FurnaceGUI::doAction(int what) {
     case GUI_ACTION_WINDOW_CHANNELS:
       nextWindow=GUI_WINDOW_CHANNELS;
       break;
+    case GUI_ACTION_WINDOW_REGISTER_VIEW:
+      nextWindow=GUI_WINDOW_REGISTER_VIEW;
+      break;
     
     case GUI_ACTION_COLLAPSE_WINDOW:
       collapseWindow=true;
@@ -3121,6 +3167,9 @@ void FurnaceGUI::doAction(int what) {
         case GUI_WINDOW_CHANNELS:
           channelsOpen=false;
           break;
+        case GUI_WINDOW_REGISTER_VIEW:
+          regViewOpen=false;
+          break;
         default:
           break;
       }
@@ -4667,6 +4716,7 @@ bool FurnaceGUI::loop() {
       if (ImGui::MenuItem("piano/input pad",BIND_FOR(GUI_ACTION_WINDOW_PIANO),pianoOpen)) pianoOpen=!pianoOpen;
       if (ImGui::MenuItem("oscilloscope",BIND_FOR(GUI_ACTION_WINDOW_OSCILLOSCOPE),oscOpen)) oscOpen=!oscOpen;
       if (ImGui::MenuItem("volume meter",BIND_FOR(GUI_ACTION_WINDOW_VOL_METER),volMeterOpen)) volMeterOpen=!volMeterOpen;
+      if (ImGui::MenuItem("register view",BIND_FOR(GUI_ACTION_WINDOW_REGISTER_VIEW),regViewOpen)) regViewOpen=!regViewOpen;
       if (ImGui::MenuItem("statistics",BIND_FOR(GUI_ACTION_WINDOW_STATS),statsOpen)) statsOpen=!statsOpen;
      
       ImGui::EndMenu();
@@ -4770,6 +4820,7 @@ bool FurnaceGUI::loop() {
     drawPiano();
     drawNotes();
     drawChannels();
+    drawRegView();
 
     if (ImGuiFileDialog::Instance()->Display("FileDialog",ImGuiWindowFlags_NoCollapse|ImGuiWindowFlags_NoMove,ImVec2(600.0f*dpiScale,400.0f*dpiScale),ImVec2(scrW*dpiScale,scrH*dpiScale))) {
       //ImGui::GetIO().ConfigFlags&=~ImGuiConfigFlags_NavEnableKeyboard;
@@ -5380,6 +5431,7 @@ bool FurnaceGUI::init() {
   pianoOpen=e->getConfBool("pianoOpen",false);
   notesOpen=e->getConfBool("notesOpen",false);
   channelsOpen=e->getConfBool("channelsOpen",false);
+  regViewOpen=e->getConfBool("regViewOpen",false);
 
   syncSettings();
 
@@ -5533,6 +5585,7 @@ bool FurnaceGUI::finish() {
   e->setConf("pianoOpen",pianoOpen);
   e->setConf("notesOpen",notesOpen);
   e->setConf("channelsOpen",channelsOpen);
+  e->setConf("regViewOpen",regViewOpen);
 
   // commit last window size
   e->setConf("lastWindowWidth",scrW);
@@ -5602,6 +5655,7 @@ FurnaceGUI::FurnaceGUI():
   pianoOpen(false),
   notesOpen(false),
   channelsOpen(false),
+  regViewOpen(false),
   selecting(false),
   curNibble(false),
   orderNibble(false),

src/gui/gui.h

@@ -127,6 +127,7 @@ enum FurnaceGUIWindows {
   GUI_WINDOW_PIANO,
   GUI_WINDOW_NOTES,
   GUI_WINDOW_CHANNELS,
+  GUI_WINDOW_REGISTER_VIEW
 };
 
 enum FurnaceGUIFileDialogs {
@@ -209,6 +210,7 @@ enum FurnaceGUIActions {
   GUI_ACTION_WINDOW_PIANO,
   GUI_ACTION_WINDOW_NOTES,
   GUI_ACTION_WINDOW_CHANNELS,
+  GUI_ACTION_WINDOW_REGISTER_VIEW,
 
   GUI_ACTION_COLLAPSE_WINDOW,
   GUI_ACTION_CLOSE_WINDOW,
@@ -520,7 +522,7 @@ class FurnaceGUI {
   bool editControlsOpen, ordersOpen, insListOpen, songInfoOpen, patternOpen, insEditOpen;
   bool waveListOpen, waveEditOpen, sampleListOpen, sampleEditOpen, aboutOpen, settingsOpen;
   bool mixerOpen, debugOpen, oscOpen, volMeterOpen, statsOpen, compatFlagsOpen;
-  bool pianoOpen, notesOpen, channelsOpen;
+  bool pianoOpen, notesOpen, channelsOpen, regViewOpen;
   SelectionPoint selStart, selEnd, cursor;
   bool selecting, curNibble, orderNibble, followOrders, followPattern, changeAllOrders;
   bool collapseWindow, demandScrollX, fancyPattern, wantPatName;
@@ -647,6 +649,7 @@ class FurnaceGUI {
   void drawPiano();
   void drawNotes();
   void drawChannels();
+  void drawRegView();
   void drawAbout();
   void drawSettings();
   void drawDebug();