X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Fscheme.4th;h=e94796c550ef26630bb7ab426c42a4f58716b225;hb=1611b5484902b38774e0e61b84a14868dcc30152;hp=9ad4fb3c38aa1ecf79c0e5468a6f04dace1723e2;hpb=41b469d050586a05cd43fdd4c78755616af3f7b4;p=scheme.forth.jl.git

diff --git a/src/scheme.4th b/src/scheme.4th
index 9ad4fb3..e94796c 100644
--- a/src/scheme.4th
+++ b/src/scheme.4th
@@ -560,6 +560,21 @@ global-env obj!
   cons drop continuation-type
 ;
 
+: continuation->pstack-list
+  drop pair-type car ;
+
+: continuation->rstack-list
+  drop pair-type cdr ;
+
+: restore-param-stack ( continuation -- obj_stack continuation )
+
+  2dup >R >R
+  continuation->pstack-list
+
+  ( Idea: allocate stack space first using psp!,
+    then copy objects from list. )
+;
+
 : restore-continuation
   \ TODO: replace current parameter and return stacks with
   \ contents of continuation object.