- [NEW] F12 to StepOut() on debugger (break on RET, RETI or RETN)

- [FIX] Fixed visualizacion of some IX and IY opcodes
- [NEW] Scroll on memory viewer with mouse wheel
- [NEW] While debugging, on each step the screen refreshes, so screen redraw can be seen while happening
- [NEW] Search for sequences of bytes. Example: "search AB1140" to search for the sequece $AB $11 $40. "search next" to continue searching.

z80.cpp

@@ -11,6 +11,7 @@ namespace z80
     static uint32_t t = 0;
     static uint16_t current_opcode_address = 0;
     bool options[Z80_NUM_OPTIONS] = { true, false };
+    int calls_stacked = 0;
 
     int (*in_ports[256])(int);
     void (*out_ports[256])(int, int);
@@ -657,6 +658,11 @@ namespace z80
         {
             PUSH(rPC);
             rPC = addr;
+
+            if (options[Z80_OPTION_BREAK_ON_RET]) {
+                calls_stacked++;
+                printf("CALL: calls stacked: %i", calls_stacked);
+            }
         }
     }
 
@@ -674,6 +680,20 @@ namespace z80
         {
             POP(_rPC);
             if (cond != cNO) t++;
+
+            if (options[Z80_OPTION_BREAK_ON_RET]) {
+                if (calls_stacked>0) {
+                    calls_stacked--;
+                    printf("RET: calls still stacked: %i\n", calls_stacked);
+                } else {
+                    printf("RET: BREAK\n");
+                    options[Z80_OPTION_BREAK_ON_RET] = false;
+                    z80debug::setcursor(rPC);
+                    z80debug::history::store();
+                    z80debug::stop();
+                }
+            }
+
         } else {
             t++;
         }
@@ -683,6 +703,13 @@ namespace z80
     {
         POP(_rPC);
         iff1 = iff2;
+
+        if (options[Z80_OPTION_BREAK_ON_RET]) {
+            options[Z80_OPTION_BREAK_ON_RET] = false;
+            z80debug::setcursor(rPC);
+            z80debug::history::store();
+            z80debug::stop();
+        }
     }
 
     void RETI()
@@ -2842,4 +2869,8 @@ namespace z80
         options[option] = !options[option];
     }
 
+    void resetStackedCalls()
+    {
+        calls_stacked=0;
+    }
 }