1 files changed, 33 insertions, 1 deletions
diff --git a/gate.c b/gate.c
index fb5ff41..67d9c08 100644
--- a/gate.c
+++ b/gate.c
@@ -125,6 +125,38 @@ gate_dump(void) {
 
 	emit_info("Gates:\n");
 	for (i = 0; i < gate_count; i++) {
-		emit_info("gate '%s'\n", gates[i].name);
+		emit_info("gate '%s': %s\n", gates[i].name, gates[i].output == LOGIC_HIGH ? "HIGH" : "LOW");
 	}
 }
+
+int
+gate_set_input(char *name, enum BINARY value) {
+	struct gate *g = NULL;
+	
+	if (NULL == (g = gate_get_input_by_name(name))) {
+		emit_error("No such input %s", name);
+		return 1;
+	}
+
+	g->output = value;
+
+	return 0;
+}
+
+void gate_update() {
+	size_t i = 0;
+	struct gate *g = NULL;
+	enum BINARY in1 = LOGIC_LOW;
+	enum BINARY in2 = LOGIC_LOW;
+
+	/* FIXME should be input->output flow path */
+	/* FIXME data flow doesn't matter yet because gate chaining isn't allowed */
+
+	for (i = 0; i < gate_count; i++) {
+		g = &gates[i];
+		in1 = g->in1->output;
+		in2 = g->in2->output;
+		g->output = (g->operation)(in1, in2);
+	}
+}
+