X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Flisp%2Fao_lisp_poly.c;h=fb3b06fe8f2d90c00f4ae1589b61acb5fc71d078;hb=97cf9df882291b9e494b2f64f84eb37357a6ab31;hp=bfd75ae3b629a1ad9e235277418f3d528e73d6a1;hpb=417161dbb36323b5a6572859dedad02ca92fc65c;p=fw%2Faltos

diff --git a/src/lisp/ao_lisp_poly.c b/src/lisp/ao_lisp_poly.c
index bfd75ae3..fb3b06fe 100644
--- a/src/lisp/ao_lisp_poly.c
+++ b/src/lisp/ao_lisp_poly.c
@@ -14,12 +14,6 @@
 
 #include "ao_lisp.h"
 
-#if 0
-#define DBG(...) printf (__VA_ARGS__)
-#else
-#define DBG(...)
-#endif
-
 struct ao_lisp_funcs {
 	void (*print)(ao_poly);
 	void (*patom)(ao_poly);
@@ -54,6 +48,10 @@ static const struct ao_lisp_funcs ao_lisp_funcs[AO_LISP_NUM_TYPE] = {
 		.print = ao_lisp_lambda_print,
 		.patom = ao_lisp_lambda_print,
 	},
+	[AO_LISP_STACK] = {
+		.print = ao_lisp_stack_print,
+		.patom = ao_lisp_stack_print,
+	},
 };
 
 static const struct ao_lisp_funcs *
@@ -84,3 +82,21 @@ ao_lisp_poly_patom(ao_poly p)
 		f->patom(p);
 }
 
+void *
+ao_lisp_ref(ao_poly poly) {
+	if (poly == AO_LISP_NIL)
+		return NULL;
+	if (poly & AO_LISP_CONST)
+		return (void *) (ao_lisp_const + (poly & AO_LISP_REF_MASK) - 4);
+	return (void *) (ao_lisp_pool + (poly & AO_LISP_REF_MASK) - 4);
+}
+
+ao_poly
+ao_lisp_poly(const void *addr, ao_poly type) {
+	const uint8_t	*a = addr;
+	if (a == NULL)
+		return AO_LISP_NIL;
+	if (AO_LISP_IS_CONST(a))
+		return AO_LISP_CONST | (a - ao_lisp_const + 4) | type;
+	return (a - ao_lisp_pool + 4) | type;
+}