- [NEW] Added option for break on interrupt

z80.cpp

@@ -10,7 +10,7 @@ namespace z80
     static uint8_t memtouched[65536];
     static uint32_t t = 0;
     static uint16_t current_opcode_address = 0;
-    bool options[Z80_NUM_OPTIONS] = { true };
+    bool options[Z80_NUM_OPTIONS] = { true, false };
 
     int (*in_ports[256])(int);
     void (*out_ports[256])(int, int);
@@ -666,7 +666,12 @@ namespace z80
         } else if (im==2) {
             const uint16_t address = (rI<<8) | 0xFE;
             rPC = READ_MEM_16(address);
+        } else if (im==0) {
+            printf("Interrupt mode 0!\n");
+            z80debug::stop();
+            return;
         }
+        if (options[Z80_OPTION_BREAK_ON_INTERRUPT]) z80debug::stop();
     }
 
     void RST(uint8_t vec)