Fix status register on power-on & reset

src/f6502.c

@@ -394,14 +394,14 @@ static inline int f6502_write(nes_Memory* mem,
 
 
 void f6502_init(f6502_Core* core) {
-    // TODO: Nothing for now
+    core->registers.P = (f6502_Status_B | f6502_Status_1);
 }
 
 void f6502_reset(f6502_Core* core) {
     core->registers.PC = f6502_read16(&core->memory,
                                       f6502_Vector_Reset),
     core->registers.S -= 3;
-    core->registers.P |= (f6502_Status_B | f6502_Status_1);
+    core->registers.P |= f6502_Status_I;
 }
 
 void f6502_set_NMI(f6502_Core* core, bool active) {