- [FIX] OR() was ANDing instead of ORing

- [FIX] BIT() was doing the opposite of what it should.
- [FIX] IX_BIT_INSTRUCTIONS() where never called
- [NEW] Afegit color al zxscreen

z80.cpp

@@ -395,7 +395,7 @@ namespace z80
 
     void OR(uint8_t b)
     {
-        rA = rA & b;
+        rA = rA | b;
         rF=0;
         FLAGS_SZXY(rA);
         SET_PARITY_FLAG();
@@ -709,7 +709,7 @@ namespace z80
         const uint8_t res = v & 1<<pos;
         KEEP_FLAGS(fC);
         SET_FLAGS(fH);
-        if (~(v>>pos) & 1) SET_FLAGS(fZ | fP);
+        if (!res) SET_FLAGS(fZ | fP);
         if (res&0x80) SET_FLAGS(fS);
         if (res&0x20) SET_FLAGS(fY);
         if (res&0x08) SET_FLAGS(fX);
@@ -2290,7 +2290,7 @@ namespace z80
             case 0xBE: d=READ_MEM_8(); CP(READ_MEM_8(rIY+d));t+=5; break;
             case 0xBF: CP(rA);                          break;
 
-            case 0xCB: IX_BIT_INSTRUCTIONS();           break;
+            case 0xCB: IY_BIT_INSTRUCTIONS();           break;
             case 0xE1: POP(_rIY);                       break;
             case 0xE3: EX_MEM(_rIY, rSP);               break;
             case 0xE5: PUSH(rIY);                       break;