手直ししてビルドしたWinバイナリだと普通に読めるけども他にもどっかあるのかね？
fdd_set_vfdd関数内
　fdd->inf.vfdd.head.write_protect
　-> LOADINTELWORD(&fdd->inf.vfdd.head.write_protect)
　sec_vfdd->dataPoint
　-> LOADINTELDWORD(&sec_vfdd->dataPoint)
fdd_write_vfdd関数内
　fdd->inf.vfdd.id[trk][secR].dataPoint = fdsize
　-> STOREINTELDWORD(&fdd->inf.vfdd.id[trk][secR].dataPoint, fdsize)