fix misalignment bugs

src/fh_builtins_meta.c

@@ -10,13 +10,15 @@ static enum fh_error w_colon(struct fh_thread_s *fh, const struct fh_word_s *w)
   size_t namelen = 0;
   fh_input_consume_spaces(fh);
   TRY(fh_input_read_word(fh, &wordname, &namelen));
-  LOG("Name: %.*s", (int) namelen, wordname);
 
   fh_setstate(fh, FH_STATE_COMPILE, 0);
 
   uint32_t ptr;
+  fh_align(fh);
   TRY(fh_heap_reserve(fh, DICTWORD_SIZE, &ptr));
   
+  LOG("New word \"%.*s\", head at 0x%08x, exec at 0x%08x", (int) namelen, wordname, ptr, fh->here);
+
   struct fh_word_s *new_word = fh_word_at(fh, ptr);
   if (!new_word) { return FH_ERR_INTERNAL; }
   new_word->previous = fh->dict_last;
@@ -89,6 +91,7 @@ static enum fh_error w_colon_noname(struct fh_thread_s *fh, const struct fh_word
   fh_setstate(fh, FH_STATE_COMPILE, 0);
 
   uint32_t ptr;
+  fh_align(fh);
   TRY(fh_heap_reserve(fh, DICTWORD_SIZE, &ptr));
 
   struct fh_word_s *new_word = fh_word_at(fh, ptr);
@@ -218,6 +221,7 @@ static enum fh_error wp_variable(struct fh_thread_s *fh, const struct fh_word_s
     TRY(ds_pop(fh, &value));
   }
 
+  fh_align(fh);
   TRY(fh_heap_reserve(fh, DICTWORD_SIZE, &ptr));
 
   struct fh_word_s *new_word = fh_word_at(fh, ptr);
@@ -536,6 +540,7 @@ static enum fh_error w_defer(struct fh_thread_s *fh, const struct fh_word_s *w)
 
   uint32_t ptr;
 
+  fh_align(fh);
   TRY(fh_heap_reserve(fh, DICTWORD_SIZE, &ptr));
 
   struct fh_word_s *new_word = fh_word_at(fh, ptr);

src/fh_runtime.c

@@ -55,6 +55,7 @@ void fh_abort(struct fh_thread_s *fh) {
 
 void fh_drop_to_interactive(struct fh_thread_s *fh) {
   fh_input_teardown(fh);
+  
   fh_push_input(fh, fh_create_input_from_filestruct(stdin, NULL));
   fh->return_stack_top = 0; 
   fh->execptr = MAGICADDR_EXEC_INTERACTIVE;

testfiles/refill_sid.f

@@ -1,4 +1 @@
- 
-: RF1  S" REFILL" EVALUATE ;
-
-RF1
+: RF1  S" REFILL" EVALUATE ; RF1