Bus: Log writes to additional POST registers

src/core/bus.cpp

@@ -625,10 +625,14 @@ ALWAYS_INLINE static TickCount DoEXP2Access(u32 offset, u32& value)
         m_tty_line_buffer += static_cast<char>(Truncate8(value));
       }
     }
-    else if (offset == 0x41)
+    else if (offset == 0x41 || offset == 0x42)
     {
       Log_WarningPrintf("BIOS POST status: %02X", value & UINT32_C(0x0F));
     }
+    else if (offset == 0x70)
+    {
+      Log_WarningPrintf("BIOS POST2 status: %02X", value & UINT32_C(0x0F));
+    }
     else
     {
       Log_WarningPrintf("EXP2 write: 0x%08X <- 0x%08X", EXP2_BASE | offset, value);