- [FIX] Al anar de 10 en 10 steps de vegades se botaba breakpoints

- [FIX] Ara cada renderer te la seua textura de font
- [CHG] Continuar l'execució ja no tanca el debugger
- [NEW] En la memòria no tocada actual o en avanç, se "adivina" quina es la instrucció
- [FIX] Resetejar el spectrum borrava la ROM
- [NEW] Anar avant o arrere en el temps mou el cursor del desensamblador

z80debug.cpp

@@ -26,6 +26,7 @@ namespace z80debug
 
     SDL_Window *win = nullptr;
     SDL_Renderer *ren = nullptr;
+    SDL_Texture *tex = nullptr;
 
     bool is_debugging=false;
     bool is_paused=false;
@@ -140,6 +141,7 @@ namespace z80debug
         win = SDL_CreateWindow("Z80 Debugger", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 83*CHR_W, 34*CHR_H, SDL_WINDOW_RESIZABLE);
         ren = SDL_CreateRenderer(win, -1, 0);
         ui::window::registerWindow(SDL_GetWindowID(win), eventHandler);
+        tex = ui::createtexture(ren);
 
         z80debug::refresh();
     }
@@ -147,8 +149,10 @@ namespace z80debug
     void hide()
     {
         ui::window::unregisterWindow(SDL_GetWindowID(win));
+        if (tex) SDL_DestroyTexture(tex);
         if (ren) SDL_DestroyRenderer(ren);
         if (win) SDL_DestroyWindow(win);
+        tex = NULL;
         ren = NULL;
         win = NULL;
     }
@@ -170,8 +174,8 @@ namespace z80debug
 
     void cont() {
         is_debugging = is_paused = false;
-        hide();
-        /*refresh();*/
+        //hide();
+        refresh();
         zx_ula::sound_enable();
     }
     
@@ -201,10 +205,11 @@ namespace z80debug
         */
     }
 
-    void printDissasemblerLine(const uint16_t address, const int line)
+    void printDissasemblerLine(const uint16_t address, const int line, const bool heuristics=false)
     {
         uint8_t colors[4] = { COLOR_RED, COLOR_CYAN, COLOR_GRAY, COLOR_WHITE};
         if (z80::getMemTouched(address)!=MEMTAG_INST) colors[3]=COLOR_GRAY;
+        if (z80::getMemTouched(address)==MEMTAG_NONE) colors[1]=COLOR_GRAY;
 
         if (is_debugging && (address == z80::getPC())) {
             for (int i=0; i<4;++i) colors[i]=COLOR_YELLOW;
@@ -214,7 +219,7 @@ namespace z80debug
         if (breakpoints[address]&9) ui::printtxt(0,line,"*", colors[0]);
         ui::printtxt(1,line,tohex(address,4), colors[1]);
 
-        if (z80::getMemTag(address)==MEMTAG_INST) {
+        if ( (z80::getMemTag(address)==MEMTAG_INST) || heuristics ) {
             const char *sym = z80dis::getSymbol(address);
             if (sym[0]!=0) ui::printtxt(7,line, sym, COLOR_YELLOW);
             ui::printtxt(19,line, z80dis::getOpcode(address), colors[2]);
@@ -227,7 +232,7 @@ namespace z80debug
 
     void refresh()
     {
-        ui::setrenderer(ren);
+        ui::setrenderer(ren, tex);
         SDL_SetRenderDrawColor(ren, 30, 30, 30, 255);
         SDL_RenderClear(ren);
 
@@ -246,11 +251,11 @@ namespace z80debug
         uint16_t pc = cursor; //z80::getPC();
         uint16_t pos = pc;
 
-        printDissasemblerLine(pc, 8);
+        printDissasemblerLine(pc, 8, true);
 
         for (int i=9;i<18;++i) {
             pos += z80dis::getOpcodeSize(pos);
-            printDissasemblerLine(pos, i);
+            printDissasemblerLine(pos, i, true);
         }
 
         pos = pc;
@@ -468,7 +473,7 @@ namespace z80debug
             z80debug::cont();
         } else if (strcmp(cmd, "r")==0 || strcmp(cmd, "reset")==0) {
             uint8_t *mem = z80::getMem();
-            for (int i=0; i<65536; ++i) mem[i]=0;
+            for (int i=0x4000; i<=0xffff; ++i) mem[i]=0;
             z80::reset(mem);
             z80::connect_port(0xfe, zx_ula::port_in, zx_ula::port_out);
             //for (int i=0; i<65536; ++i) breakpoints[i]=0;
@@ -616,7 +621,7 @@ namespace z80debug
         uint8_t *memory = z80::getMem();
         FILE *f = fopen(filename, "wb");
         fwrite(regs, 31, 1, f);
-        fwrite(&memory[16*1024], 48*1024, 1, f);
+        fwrite(&memory[0x4000], 0xc000, 1, f);
         fclose(f);
     }
 
@@ -626,7 +631,7 @@ namespace z80debug
         uint8_t *memory = z80::getMem();
         FILE *f = fopen(filename, "rb");
         fread(regs, 31, 1, f);
-        fread(&memory[16*1024], 48*1024, 1, f);
+        fread(&memory[0x4000], 0xc000, 1, f);
         fclose(f);
     }
 
@@ -658,18 +663,21 @@ namespace z80debug
         {
             pos = top;
             z80::setPC(buffer[pos]);
+            cursor = z80::getPC();
         }
 
         void goforward()
         {
             if (pos == top) return;
             z80::setPC(buffer[++pos]);
+            cursor = z80::getPC();
         }
 
         void goback()
         {
             if (uint8_t(pos-1) == top) return;
             z80::setPC(buffer[--pos]);
+            cursor = z80::getPC();
         }
 
     }