+
+#ifdef sparc_HOST_ARCH
+/* The closures returned by allocateLocal are only guaranteed to be 32 bit
+ aligned, because that's the size of pointers. SPARC v9 can't do
+ misaligned loads/stores, so we have to write the 64bit word in chunks */
+
+HaskellObj
+rts_mkWord64 (Capability *cap, HsWord64 w_)
+{
+ StgWord64 w = (StgWord64)w_;
+ StgWord32 *tmp;
+
+ StgClosure *p = (StgClosure *)allocateLocal(cap,CONSTR_sizeW(0,2));
+ /* see mk_Int8 comment */
+ SET_HDR(p, W64zh_con_info, CCS_SYSTEM);
+
+ tmp = (StgWord32*)&(p->payload[0]);
+
+ tmp[0] = (StgWord32)((StgWord64)w >> 32);
+ tmp[1] = (StgWord32)w; /* truncate high 32 bits */
+ return p;
+}
+
+#else
+