diff -r -u parrot-current/include/parrot/packfile.h parrot-gcc64/include/parrot/packfile.h
--- parrot-current/include/parrot/packfile.h	2009-03-11 07:42:34.000000000 -0400
+++ parrot-gcc64/include/parrot/packfile.h	2009-03-11 08:28:05.000000000 -0400
@@ -1031,7 +1031,7 @@
 PARROT_WARN_UNUSED_RESULT
 INTVAL PF_fetch_integer(
     ARGIN_NULLOK(PackFile *pf),
-    ARGIN(const opcode_t **stream))
+    ARGIN(const char **stream))
         __attribute__nonnull__(2);
 
 PARROT_WARN_UNUSED_RESULT
diff -r -u parrot-current/src/packfile/pf_items.c parrot-gcc64/src/packfile/pf_items.c
--- parrot-current/src/packfile/pf_items.c	2009-03-11 07:42:31.000000000 -0400
+++ parrot-gcc64/src/packfile/pf_items.c	2009-03-11 12:20:16.000000000 -0400
@@ -1098,24 +1098,24 @@
 
 PARROT_WARN_UNUSED_RESULT
 INTVAL
-PF_fetch_integer(ARGIN_NULLOK(PackFile *pf), ARGIN(const opcode_t **stream))
+PF_fetch_integer(ARGIN_NULLOK(PackFile *pf), ARGIN(const char **stream))
 {
     ASSERT_ARGS(PF_fetch_integer)
     INTVAL i;
 
-    if (!pf || pf->fetch_iv == NULL)
-        return *(*stream)++;
-    i = (pf->fetch_iv)(*((const unsigned char **)stream));
-    TRACE_PRINTF_VAL(("  PF_fetch_integer: 0x%x (%d) at 0x%x\n", i, i,
-                      OFFS(*stream)));
-    /* XXX assume sizeof (opcode_t) == sizeof (INTVAL) on the
-     * machine producing this PBC.
-     *
-     * TODO TT #364 on Sparc 64bit: On pbc wordsize=4 but native ptrsize=8 and
-     * ptr_alignment=8 the advance by 4 will signal BUS (invalid address alignment)
-     * in PF_fetch_integer and elsewhere.
-     */
-    *((const unsigned char **) (stream)) += pf->header->wordsize;
+    if (!pf || pf->fetch_iv == NULL) {  /* Native transforms */
+        memcpy(&i, *stream, sizeof (INTVAL));
+        *stream += sizeof (INTVAL);
+    }
+    else {
+        i = (pf->fetch_iv)(*((const unsigned char **)stream));
+        TRACE_PRINTF_VAL(("  PF_fetch_integer: 0x%x (%d) at 0x%x\n", i, i,
+                          OFFS(*stream)));
+        /* XXX assume sizeof (opcode_t) == sizeof (INTVAL) on the
+         * machine producing this PBC.
+         */
+        *stream += pf->header->wordsize;
+    }
     return i;
 }
 
diff -r -u parrot-current/src/pmc_freeze.c parrot-gcc64/src/pmc_freeze.c
--- parrot-current/src/pmc_freeze.c	2009-03-11 07:42:32.000000000 -0400
+++ parrot-gcc64/src/pmc_freeze.c	2009-03-11 08:30:52.000000000 -0400
@@ -872,7 +872,7 @@
     const char * const   start  = (char *)io->image->strstart;
     char               **opcode = &io->image->strstart;
     const INTVAL i              = PF_fetch_integer(io->pf,
-                                    (const opcode_t **)opcode);
+                                    (const char **)opcode);
 
     io->image->bufused -= ((char *)io->image->strstart - start);
     PARROT_ASSERT((int)io->image->bufused >= 0);