altos/lisp: add progn, while, read and eval

[fw/altos] / src / lisp / ao_lisp_builtin.c

diff --git a/src/lisp/ao_lisp_builtin.c b/src/lisp/ao_lisp_builtin.c
index c38ba1652c2877eee2ef74a241d901e8d21c68a6..57d9ee10edd1ecca5869ba066280a35bcf684267 100644 (file)
--- a/src/lisp/ao_lisp_builtin.c
+++ b/src/lisp/ao_lisp_builtin.c
@@ -48,6 +48,8 @@ char *ao_lisp_args_name(uint8_t args) {
 }
 #else
 static const ao_poly builtin_names[] = {
+       [builtin_eval] = _ao_lisp_atom_eval,
+       [builtin_read] = _ao_lisp_atom_read,
        [builtin_lambda] = _ao_lisp_atom_lambda,
        [builtin_lexpr] = _ao_lisp_atom_lexpr,
        [builtin_nlambda] = _ao_lisp_atom_nlambda,
@@ -60,6 +62,8 @@ static const ao_poly builtin_names[] = {
        [builtin_set] = _ao_lisp_atom_set,
        [builtin_setq] = _ao_lisp_atom_setq,
        [builtin_cond] = _ao_lisp_atom_cond,
+       [builtin_progn] = _ao_lisp_atom_progn,
+       [builtin_while] = _ao_lisp_atom_while,
        [builtin_print] = _ao_lisp_atom_print,
        [builtin_patom] = _ao_lisp_atom_patom,
        [builtin_plus] = _ao_lisp_atom_2b,
@@ -72,11 +76,13 @@ static const ao_poly builtin_names[] = {
        [builtin_greater] = _ao_lisp_atom_3e,
        [builtin_less_equal] = _ao_lisp_atom_3c3d,
        [builtin_greater_equal] = _ao_lisp_atom_3e3d,
+       [builtin_delay] = _ao_lisp_atom_delay,
+       [builtin_led] = _ao_lisp_atom_led,
 };
 
 static char *
 ao_lisp_builtin_name(enum ao_lisp_builtin_id b) {
-       if (0 <= b && b < _builtin_last)
+       if (b < _builtin_last)
                return ao_lisp_poly_atom(builtin_names[b])->name;
        return "???";
 }
@@ -233,6 +239,22 @@ ao_lisp_cond(struct ao_lisp_cons *cons)
        return AO_LISP_NIL;
 }
 
+ao_poly
+ao_lisp_progn(struct ao_lisp_cons *cons)
+{
+       ao_lisp_stack->state = eval_progn;
+       ao_lisp_stack->sexprs = ao_lisp_cons_poly(cons);
+       return AO_LISP_NIL;
+}
+
+ao_poly
+ao_lisp_while(struct ao_lisp_cons *cons)
+{
+       ao_lisp_stack->state = eval_while;
+       ao_lisp_stack->sexprs = ao_lisp_cons_poly(cons);
+       return AO_LISP_NIL;
+}
+
 ao_poly
 ao_lisp_print(struct ao_lisp_cons *cons)
 {
@@ -448,7 +470,52 @@ ao_lisp_greater_equal(struct ao_lisp_cons *cons)
        return ao_lisp_compare(cons, builtin_greater_equal);
 }
 
-ao_lisp_func_t ao_lisp_builtins[] = {
+ao_poly
+ao_lisp_led(struct ao_lisp_cons *cons)
+{
+       ao_poly led;
+       if (!ao_lisp_check_argc(_ao_lisp_atom_led, cons, 1, 1))
+               return AO_LISP_NIL;
+       if (!ao_lisp_check_argt(_ao_lisp_atom_led, cons, 0, AO_LISP_INT, 0))
+               return AO_LISP_NIL;
+       led = ao_lisp_arg(cons, 0);
+       ao_lisp_os_led(ao_lisp_poly_int(led));
+       return led;
+}
+
+ao_poly
+ao_lisp_delay(struct ao_lisp_cons *cons)
+{
+       ao_poly delay;
+       if (!ao_lisp_check_argc(_ao_lisp_atom_led, cons, 1, 1))
+               return AO_LISP_NIL;
+       if (!ao_lisp_check_argt(_ao_lisp_atom_led, cons, 0, AO_LISP_INT, 0))
+               return AO_LISP_NIL;
+       delay = ao_lisp_arg(cons, 0);
+       ao_lisp_os_delay(ao_lisp_poly_int(delay));
+       return delay;
+}
+
+ao_poly
+ao_lisp_do_eval(struct ao_lisp_cons *cons)
+{
+       if (!ao_lisp_check_argc(_ao_lisp_atom_eval, cons, 1, 1))
+               return AO_LISP_NIL;
+       ao_lisp_stack->state = eval_sexpr;
+       return cons->car;
+}
+
+ao_poly
+ao_lisp_do_read(struct ao_lisp_cons *cons)
+{
+       if (!ao_lisp_check_argc(_ao_lisp_atom_read, cons, 0, 0))
+               return AO_LISP_NIL;
+       return ao_lisp_read();
+}
+
+const ao_lisp_func_t ao_lisp_builtins[] = {
+       [builtin_eval] = ao_lisp_do_eval,
+       [builtin_read] = ao_lisp_do_read,
        [builtin_lambda] = ao_lisp_lambda,
        [builtin_lexpr] = ao_lisp_lexpr,
        [builtin_nlambda] = ao_lisp_nlambda,
@@ -461,6 +528,8 @@ ao_lisp_func_t ao_lisp_builtins[] = {
        [builtin_set] = ao_lisp_set,
        [builtin_setq] = ao_lisp_setq,
        [builtin_cond] = ao_lisp_cond,
+       [builtin_progn] = ao_lisp_progn,
+       [builtin_while] = ao_lisp_while,
        [builtin_print] = ao_lisp_print,
        [builtin_patom] = ao_lisp_patom,
        [builtin_plus] = ao_lisp_plus,
@@ -472,6 +541,8 @@ ao_lisp_func_t ao_lisp_builtins[] = {
        [builtin_less] = ao_lisp_less,
        [builtin_greater] = ao_lisp_greater,
        [builtin_less_equal] = ao_lisp_less_equal,
-       [builtin_greater_equal] = ao_lisp_greater_equal
+       [builtin_greater_equal] = ao_lisp_greater_equal,
+       [builtin_led] = ao_lisp_led,
+       [builtin_delay] = ao_lisp_delay,
 };