Pad malformed roms before loading

Author: drhelius

src/media.cpp

@@ -232,15 +232,20 @@ bool Media::LoadHuCardFromBuffer(const u8* buffer, int size, const char* path)
         buffer += 512;
     }
 
-    assert((size % 0x2000) == 0);
-    if ((size % 0x2000) != 0)
+    if (size <= 0)
     {
         Error("Invalid size found: %d (0x%X) bytes", size, size);
+        return false;
     }
 
-    m_rom_size = size;
+    m_rom_size = (size + 0x1FFF) & ~0x1FFF;
+
+    if (m_rom_size != size)
+        Log("WARNING: HuCard size %d (0x%X) is not 8KB aligned. Padding to %d (0x%X) bytes", size, size, m_rom_size, m_rom_size);
+
     m_rom = new u8[m_rom_size];
-    memcpy(m_rom, buffer, m_rom_size);
+    memset(m_rom, 0xFF, m_rom_size);
+    memcpy(m_rom, buffer, size);
     m_ready = true;
 
     Debug("HuCard loaded from buffer. Size: %d bytes", m_rom_size);