summaryrefslogtreecommitdiffstatshomepage
path: root/src/lib/netlist/devices/nld_tristate.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/netlist/devices/nld_tristate.h')
-rw-r--r--src/lib/netlist/devices/nld_tristate.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/lib/netlist/devices/nld_tristate.h b/src/lib/netlist/devices/nld_tristate.h
new file mode 100644
index 00000000000..604ae7f03fd
--- /dev/null
+++ b/src/lib/netlist/devices/nld_tristate.h
@@ -0,0 +1,31 @@
+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+/*
+ * nld_tristate.h
+ *
+ * tristate: Hack to merge two tri-stated outputs together
+ *
+ */
+
+#ifndef NLD_TRISTATE_H_
+#define NLD_TRISTATE_H_
+
+#include "nl_setup.h"
+
+#define TTL_TRISTATE(name, cCEQ1, cD1, cCEQ2, cD2) \
+ NET_REGISTER_DEV(TTL_TRISTATE, name) \
+ NET_CONNECT(name, CEQ1, cCEQ1) \
+ NET_CONNECT(name, D1, cD1) \
+ NET_CONNECT(name, CEQ2, cCEQ2) \
+ NET_CONNECT(name, D2, cD2)
+
+#define TTL_TRISTATE3(name, cCEQ1, cD1, cCEQ2, cD2, cCEQ3, cD3) \
+ NET_REGISTER_DEV(TTL_TRISTATE3, name) \
+ NET_CONNECT(name, CEQ1, cCEQ1) \
+ NET_CONNECT(name, D1, cD1) \
+ NET_CONNECT(name, CEQ2, cCEQ2) \
+ NET_CONNECT(name, D2, cD2) \
+ NET_CONNECT(name, CEQ3, cCEQ3) \
+ NET_CONNECT(name, D3, cD3)
+
+#endif /* NLD_TRISTATE_H_ */