1 files changed, 46 insertions, 0 deletions
diff --git a/gate.c b/gate.c
new file mode 100644
index 0000000..0d4337a
--- /dev/null
+++ b/gate.c
@@ -0,0 +1,46 @@
+#include <string.h>
+
+#include "gate.h"
+#include "error.h"
+
+#define GATE_MAX 1024
+
+static size_t gate_count;
+static struct gate gates[GATE_MAX];
+
+int
+gate_count_guard(void) {
+	if (gate_count >= GATE_MAX) {
+		emit_error("Internal: too many gates\n");
+	}
+	return 1;
+}
+
+int
+gate_add(struct gate *in1, struct gate *in2) {
+	struct gate g = {0};
+
+	if (gate_count_guard()) {
+		return 1;
+	}
+
+	g.in1 = in1;
+	g.in2 = in2;
+
+	gates[gate_count++] = g;
+
+	return 0;
+}
+
+int
+tick(void) {
+	/* FIXME */
+	return 1;
+}
+
+void
+gate_init(void) {
+	gate_count = 0;
+	memset(gates, 0, sizeof(gates));
+}
+