sim: make the output of the make command more verbose

Hans dumped all ghdl output to a logfile to have a short output
on the terminal. I prefer to have a more verbose output in case of
errors. In addition I fixed a problem when an error occurs during
elaboration as the .ghw file is produced also when ghdl exits with
an error. Now make will reproduce the error on each call.

1 files changed, 10 insertions, 59 deletions

diff --git a/sim/makefile b/sim/makefile
index 9eb77b1..2d78311 100644
--- a/sim/makefile
+++ b/sim/makefile
@@ -29,40 +29,29 @@ sim : t_$(PROJECT).ghw
 #==== WAVEFORM DRAWING ====#
 .PHONY : wave
 wave : t_$(PROJECT).ghw
-	@echo "---- $@"  >> $(LOG_FILE) 2>&1
-	@$(TIME_STAMP_LOG_FILE)
-	@gtkwave t_$(PROJECT).ghw view_signals.gtkw  >> $(LOG_FILE) 2>&1 &
+	@gtkwave t_$(PROJECT).ghw view_signals.gtkw >/dev/null 2>&1 &
 
 #==== SIMULATION ====#
 t_$(PROJECT).ghw : .compile.done
-	@echo "---- $@"  >> $(LOG_FILE) 2>&1
-	@$(TIME_STAMP_LOG_FILE)
-	@echo "Simulating ..."  2>&1 | tee -a $(LOG_FILE)
-	@$(GHDL_CMD) -r $(GHDL_OPTIONS) t_$(PROJECT) --wave=t_$(PROJECT).ghw >> $(LOG_FILE) 2>&1
-	@$(TIME_STAMP) > .sim.done
+	# If ghdl exits with an error code, remove the .ghw file
+	$(GHDL_CMD) -r $(GHDL_OPTIONS) t_$(PROJECT) --wave=t_$(PROJECT).ghw \
+	  || (rm -f t_$(PROJECT).ghw; exit 1)
 
 #==== COMPILATION ====#
 compile : .compile.done
 
 .compile.done : $(SOURCE_FILES) .gproject.done
-	@echo "---- $@"  >> $(LOG_FILE) 2>&1
-	@$(TIME_STAMP_LOG_FILE)
-	@echo "Compiling ..."  >> $(LOG_FILE) 2>&1
-	@$(GHDL_CMD) -m $(GHDL_OPTIONS) --warn-default-binding t_$(PROJECT) 2>&1 | tee -a $(LOG_FILE)
-	@$(TIME_STAMP) > .compile.done
+	$(GHDL_CMD) -m $(GHDL_OPTIONS) --warn-default-binding t_$(PROJECT)
+	touch .compile.done
 
 #==== PROJECT CREATION ====#
 gproject : .gproject.done
 
 .gproject.done : makefile.sources
-	@echo "---- $@"  >> $(LOG_FILE) 2>&1
-	@$(TIME_STAMP_LOG_FILE)
-	@echo "Creating Project ..."  >> $(LOG_FILE) 2>&1
-	@rm -rf ./ghdl_sources.tcl
-	@# Create a directory work if it does not exist. Otherwise do nothing.
-	@[ -d work ] || mkdir -p work
-	@$(GHDL_CMD) -i $(GHDL_OPTIONS) $(SOURCE_FILES) 2>&1 | tee -a $(LOG_FILE) 
-	@$(TIME_STAMP) > .gproject.done
+	# Create a directory work if it does not exist. Otherwise do nothing.
+	[ -d work ] || mkdir -p work
+	$(GHDL_CMD) -i $(GHDL_OPTIONS) $(SOURCE_FILES)
+	touch .gproject.done
 
 #==== Synthesis Check ====#
 synthcheck : .compile.done
@@ -88,41 +77,3 @@ help:
 	@echo '  "make sim" to run ghdl with the top testbench of the project'
 	@echo '  "make wave" to display the simulation results in the time domain'
 	@echo '  "make clean" to remove all generated files'
-
-
-## ----------------------------------------------------------------------------
-## Description: 
-## ------------
-## assumes the following design directory structure as prerequisite
-## 
-## DigitaltechnikPraktikum
-## |   
-## +---src
-## |       and2gate_equation.vhd
-## |       invgate_equation.vhd
-## |       mux2to1_structure.vhd
-## |       or2gate_equation.vhd
-## |       t_mux2to1.vhd
-## |       de1_mux2to1_structure.vhd
-## |
-## +---sim
-## |   |   makefile
-## |   |
-## |   \---mux2to1
-## |           makefile
-## |           makefile.sources
-## |
-## +---pnr
-## |   |   makefile
-## |   |
-## |   \---de1_mux2to1
-## |           de1_mux2to1_pins.tcl
-## |           makefile
-## |
-## \---scripts
-##         de1_pin_assignments_minimumio.csv
-##         de1_pin_assignments_minimumio.tcl
-##         modelsim.ini
-##         quartus_project_settings.tcl
-## ----------------------------------------------------------------------------
-