stack function.

diff --git a/implementations/uvm-ncc/joy.c b/implementations/uvm-ncc/joy.c
index 4cf4bb4..f6cc29b 100644 (file)
--- a/implementations/uvm-ncc/joy.c
+++ b/implementations/uvm-ncc/joy.c
@@ -572,7 +572,8 @@ joy_eval(char *symbol, u32 stack, u32 expression)
        MATCH("clear") return (u64)expression;
        MATCH("swaack") { stack = swaack(stack); }
        else MATCH("pop") { stack = pop(stack); }
-       //else MATCH("") {}
+       else MATCH("stack") { stack = cons(stack, stack); }
+       //else MATCH("") { stack = (stack); }
        CHECK_ERROR
        //print_str(symbol);print_endl();
        return (u64)stack << 32 | expression;
@@ -648,7 +649,7 @@ main()
        print_endl();
        */
 
-       u32 expression = text_to_expression("1 2 3 [4 5 6] swaack pop 23");
+       u32 expression = text_to_expression("1 2 3 [4 5 6] swaack pop 23 stack 18");
        //u32 expression = text_to_expression("1 2 3 clear 4 5 6");
        //u32 expression = text_to_expression(" 1[2[true 3][aa[aa bb] aa bb cc]bob]false[]bob 3[4] ga[]ry");
        print_joy_list(expression);