altos/lisp: convert GC to non-recursive

Use a boolean array to note cons cells which would otherwise recurse,
then loop until that array is empty.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 0 insertions, 51 deletions

diff --git a/src/lisp/ao_lisp_prim.c b/src/lisp/ao_lisp_prim.c
index 82386a83..3c081ee8 100644
--- a/src/lisp/ao_lisp_prim.c
+++ b/src/lisp/ao_lisp_prim.c
@@ -76,54 +76,3 @@ ao_lisp_poly_patom(ao_poly p)
 		f->patom(p);
 }
 
-static const struct ao_lisp_type const *ao_lisp_types[AO_LISP_NUM_TYPE] = {
-	[AO_LISP_CONS] = &ao_lisp_cons_type,
-	[AO_LISP_INT] = NULL,
-	[AO_LISP_STRING] = &ao_lisp_string_type,
-	[AO_LISP_OTHER] = (void *) 0x1,
-	[AO_LISP_ATOM] = &ao_lisp_atom_type,
-	[AO_LISP_BUILTIN] = &ao_lisp_builtin_type,
-	[AO_LISP_FRAME] = &ao_lisp_frame_type,
-};
-
-int
-ao_lisp_poly_mark(ao_poly p)
-{
-	const struct ao_lisp_type *lisp_type = ao_lisp_types[ao_lisp_poly_type(p)];
-	if (lisp_type)
-		return ao_lisp_mark(lisp_type, ao_lisp_ref(p));
-	return 1;
-}
-
-int
-ao_lisp_poly_move(ao_poly *ref)
-{
-	uint8_t				type;
-	ao_poly				p = *ref;
-	const struct ao_lisp_type	*lisp_type;
-	int				ret;
-	void				*addr;
-
-	if (!p)
-		return 1;
-
-	type = p & AO_LISP_TYPE_MASK;
-	if (type == AO_LISP_OTHER)
-		type = ao_lisp_other_type(ao_lisp_move_map(ao_lisp_poly_other(p)));
-
-	if (type >= AO_LISP_NUM_TYPE)
-		abort();
-
-	lisp_type = ao_lisp_types[type];
-	if (!lisp_type)
-		return 1;
-	addr = ao_lisp_ref(p);
-	ret = ao_lisp_move(lisp_type, &addr);
-	if (addr != ao_lisp_ref(p)) {
-		ao_poly np = ao_lisp_poly(addr, p & AO_LISP_TYPE_MASK);
-		DBG("poly %d moved %04x -> %04x\n",
-		    type, p, np);
-		*ref = np;
-	}
-	return ret;
-}