From 253754dd9d55d3638f29664cc11b965142a3995d Mon Sep 17 00:00:00 2001
From: Vladimir Burian <buriavl2@fel.cvut.cz>
Date: Thu, 14 Apr 2011 14:17:40 +0200
Subject: [PATCH] Testbench Makefile improved

---
 tb/Makefile | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/tb/Makefile b/tb/Makefile
index 18d0314..66b07d0 100644
--- a/tb/Makefile
+++ b/tb/Makefile
@@ -1,19 +1,39 @@
-VHDL_MAIN=tb_qcounter
-VHDL_SUB=dff.o qcounter.o
+# Be aware of required VHDL_ENTITIES sequence! All entities must be listed in
+# bottom to up order (e.g. the top entity is the last in this list). Otherwise
+# it won't compile.
+
+# Target 'view' can be used to compile & run testbench and show the result
+# in gtkwave. When lauching gtkwave, timing diagram settings (named after
+# the testbench) is also loaded, so it's possible to store view settings
+# by invoking 'File/Write Save File (Ctrl+S)' in gtkwave.
+
+
+VHDL_MAIN     = tb_qcounter
+VHDL_ENTITIES = dff.o \
+                qcounter.o
+
+STOP_TIME     = 8us
+
+##############################################################################
 
 all: $(VHDL_MAIN)
 
 run: $(VHDL_MAIN)
-	ghdl -r $< --stop-time=8us --vcd=$<.vcd
+	ghdl -r $< --stop-time=$(STOP_TIME) --vcd=$<.vcd
+
+view: run
+	gtkwave $(VHDL_MAIN).vcd $(VHDL_MAIN).sav
+
+$(VHDL_MAIN): $(VHDL_ENTITIES) $(VHDL_MAIN).o
+	ghdl -e -fexplicit --ieee=synopsys $@
 
-$(VHDL_MAIN): $(VHDL_MAIN).o $(VHDL_SUB)
-	ghdl -e --ieee=synopsys $@
 
 %.o: %.vhd
-	ghdl -a --ieee=synopsys $<
+	ghdl -a -fexplicit --ieee=synopsys $<
 
 %.o: ../%.vhd
-	ghdl -a --ieee=synopsys $<
+	ghdl -a -fexplicit --ieee=synopsys $<
 
 clean:
-	rm -Rf *.o qctest
+	rm -Rf *.o *.vcd $(VHDL_MAIN) results.txt work-obj93.cf
+
-- 
2.39.2