write_mdr
write_mdr(smc,0L) ;
write_mdr(smc,0L) ;
write_mdr(smc,le32_to_cpu(*p)) ;
write_mdr(smc,td) ; /* write over memory data reg to buffer */
write_mdr(smc,le32_to_cpu(a[0])) ;
write_mdr(smc,le32_to_cpu(a[1])) ;