3 files changed, 14 insertions, 0 deletions
diff --git a/src/lisp/ao_lisp.h b/src/lisp/ao_lisp.h
index 1f7c85e1..1a8e7e91 100644
--- a/src/lisp/ao_lisp.h
+++ b/src/lisp/ao_lisp.h
@@ -79,6 +79,7 @@ extern uint8_t ao_lisp_const[AO_LISP_POOL_CONST];
 #define _ao_lisp_atom_save	_atom("save")
 #define _ao_lisp_atom_restore	_atom("restore")
 #define _ao_lisp_atom_call2fcc	_atom("call/cc")
+#define _ao_lisp_atom_collect	_atom("collect")
 #else
 #include "ao_lisp_const.h"
 #ifndef AO_LISP_POOL
@@ -291,6 +292,7 @@ enum ao_lisp_builtin_id {
 	builtin_save,
 	builtin_restore,
 	builtin_call_cc,
+	builtin_collect,
 	_builtin_last
 };
 
diff --git a/src/lisp/ao_lisp_builtin.c b/src/lisp/ao_lisp_builtin.c
index 4c845307..7cd131f5 100644
--- a/src/lisp/ao_lisp_builtin.c
+++ b/src/lisp/ao_lisp_builtin.c
@@ -87,6 +87,7 @@ static const ao_poly builtin_names[] = {
 	[builtin_save] = _ao_lisp_atom_save,
 	[builtin_restore] = _ao_lisp_atom_restore,
 	[builtin_call_cc] = _ao_lisp_atom_call2fcc,
+	[builtin_collect] = _ao_lisp_atom_collect,
 
 };
 
@@ -561,6 +562,15 @@ ao_lisp_do_read(struct ao_lisp_cons *cons)
 	return ao_lisp_read();
 }
 
+ao_poly
+ao_lisp_do_collect(struct ao_lisp_cons *cons)
+{
+	int	free;
+	(void) cons;
+	free = ao_lisp_collect(AO_LISP_COLLECT_FULL);
+	return ao_lisp_int_poly(free);
+}
+
 const ao_lisp_func_t ao_lisp_builtins[] = {
 	[builtin_eval] = ao_lisp_do_eval,
 	[builtin_read] = ao_lisp_do_read,
@@ -599,5 +609,6 @@ const ao_lisp_func_t ao_lisp_builtins[] = {
 	[builtin_save] = ao_lisp_save,
 	[builtin_restore] = ao_lisp_restore,
 	[builtin_call_cc] = ao_lisp_call_cc,
+	[builtin_collect] = ao_lisp_do_collect,
 };
 
diff --git a/src/lisp/ao_lisp_make_const.c b/src/lisp/ao_lisp_make_const.c
index de9c5725..49f989e6 100644
--- a/src/lisp/ao_lisp_make_const.c
+++ b/src/lisp/ao_lisp_make_const.c
@@ -72,6 +72,7 @@ struct builtin_func funcs[] = {
 	{ .name = "save",	.args = AO_LISP_FUNC_F_LAMBDA,	.func = builtin_save },
 	{ .name = "restore",	.args = AO_LISP_FUNC_F_LAMBDA,	.func = builtin_restore },
 	{ .name = "call/cc",	.args = AO_LISP_FUNC_F_LAMBDA,	.func = builtin_call_cc },
+	{ .name = "collect",	.args = AO_LISP_FUNC_F_LAMBDA,	.func = builtin_collect },
 };
 
 #define N_FUNC (sizeof funcs / sizeof funcs[0])