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# Modelsim script generation, compile and run rules for board simulations

#

# Modelsim-specific settings

#

VOPT_ARGS+=$(QUIET) -suppress 2241

# If certain versions of modelsim don't have the vopt executable, define

# MGC_NO_VOPT=1 when running to skip use of the vopt executable

ifeq ($(MGC_NO_VOPT), 1)

MGC_VOPT_EXE= \# skipped: vopt

# When no vopt stage, actual vsim target changes, and extra options

# must be passed depending on FPGA tech

ifeq ($(FPGA_VENDOR), xilinx)

MGC_VSIM_TGT=orpsoc_testbench glbl

else

MGC_VSIM_TGT=orpsoc_testbench

endif

else

MGC_VOPT_EXE= vopt

MGC_VSIM_TGT=tb

endif

# If VCD dump is desired, tell Modelsim not to optimise

# away everything.

ifeq ($(VCD), 1)

#VOPT_ARGS=-voptargs="+acc=rnp"

VOPT_ARGS+=+acc=rnpqv

endif

# VSIM commands

# Suppressed warnings - 3009: Failed to open $readmemh() file

# Suppressed warnings - 3009: Module 'blah' does not have a `timescale directive in effect, but previous modules do.

# Suppressed warnings - 8598: Non-positive replication multiplier inside concat. Replication will be ignored

# - set GUI=1 if you want to invoke Modelsim GUI to debug

# - Propably you would like to switch off optimization

# also which will allow you to see all nets ...

#

ifeq ($(GUI), 1)

VSIM_ARGS+= -suppress 7 -suppress 3009 -suppress 8598 -novopt -do "set StdArithNoWarnings 1"

else

VSIM_ARGS+=  -suppress 7 -suppress 3009 -suppress 8598 -c $(QUIET) -do "set StdArithNoWarnings 1; run -all; exit"

endif

# VPI debugging interface set up

VPI_SRC_C_DIR=$(COMMON_BENCH_VERILOG_DIR)/vpi/c

VPI_SRCS=$(shell ls $(VPI_SRC_C_DIR)/*.[ch])

# Modelsim VPI compile variables

MODELTECH_VPILIB=msim_jp_vpi.sl

# Modelsim VPI settings

ifeq ($(VPI), 1)

VPI_LIBS=$(VPI_SRC_C_DIR)/$(MODELTECH_VPILIB)

VSIM_ARGS += -pli $(VPI_SRC_C_DIR)/$(MODELTECH_VPILIB)

endif

# Rule to make the VPI library for modelsim

$(VPI_SRC_C_DIR)/$(MODELTECH_VPILIB): $(VPI_SRCS)

        $(MAKE) -C $(VPI_SRC_C_DIR) $(MODELTECH_VPILIB)

#

# Script generation rules

#

# Backend script generation - make these rules sensitive to source and includes

modelsim_backend.scr: $(BOARD_BACKEND_VERILOG_SRC)

        $(Q)echo "+incdir+"$(TECHNOLOGY_BACKEND_VERILOG_DIR) > $@;

        $(Q)echo "+incdir+"$(BOARD_BACKEND_VERILOG_SRC) >> $@;

        $(Q)echo "+incdir+"$(BOARD_BENCH_VERILOG_DIR) > $@;

        $(Q)for vsrc in $(BACKEND_TECHNOLOGY_VERILOG_SRC); do echo $$vsrc >> $@; done

        $(Q)echo "-y " $(TECHNOLOGY_LIBRARY_VERILOG_DIR) >> $@;

        $(Q)for vsrc in $(BOARD_BACKEND_VERILOG_SRC); do echo $$vsrc >> $@; done

        $(Q)echo "+libext+.v" >> $@;

        $(Q)echo >> $@;

# DUT compile script

modelsim_dut.scr: $(RTL_VERILOG_SRC) $(RTL_VERILOG_INCLUDES) $(BOOTROM_VERILOG)

        $(Q)echo "+incdir+"$(BOARD_RTL_VERILOG_INCLUDE_DIR) > $@;

        $(Q)echo "+incdir+"$(BOOTROM_SW_DIR) >> $@;

        $(Q)echo "+incdir+"$(BOARD_BENCH_VERILOG_INCLUDE_DIR) >> $@;

        $(Q)echo "+libext+.v" >> $@;

        $(Q)for module in $(BOARD_RTL_VERILOG_MODULES); do if [ -d $(BOARD_RTL_VERILOG_DIR)/$$module ]; then echo "-y " $(BOARD_RTL_VERILOG_DIR)/$$module >> $@; fi; done

        $(Q)for module in $(COMMON_RTL_VERILOG_MODULES); do if [ -d $(COMMON_RTL_VERILOG_DIR)/$$module ]; then echo "-y " $(COMMON_RTL_VERILOG_DIR)/$$module >> $@; fi; done

        $(Q)echo "-y " $(BOARD_BACKEND_VERILOG_DIR) >> $@;

        $(Q)if [ ! -z "$$GATELEVEL_MODULES" ]; \

                then echo "-y " $(BOARD_SYN_OUT_DIR) >> $@; \

                echo "+libext+.vm" >> $@; \

        fi

ifeq ($(FPGA_VENDOR), xilinx)

        $(Q)echo "-y "$(TECHNOLOGY_LIBRARY_VERILOG_DIR)"/src/unisims" >> $@;

        $(Q)echo "-y "$(TECHNOLOGY_LIBRARY_VERILOG_DIR)"/src/XilinxCoreLib" >> $@;

endif

ifeq ($(BOARD_NAME), ordb2a-ep4ce22)

        $(Q)echo "../../rtl/verilog/versatile_library/versatile_library_ordbcycloneiv.v" >> $@;

endif

        $(Q)echo >> $@;

modelsim_bench.scr: $(BOARD_BENCH_VERILOG_SRC) $(COMMON_BENCH_VERILOG_SRC)

        $(Q)echo "+incdir+"$(BOARD_RTL_VERILOG_INCLUDE_DIR) > $@;

        $(Q)echo "+incdir+"$(BOARD_BENCH_VERILOG_INCLUDE_DIR) >> $@;

        $(Q)echo "+incdir+"$(COMMON_BENCH_VERILOG_INCLUDE_DIR) >> $@;

        $(Q)for path in $(BENCH_VERILOG_SUBDIRS); do echo "+incdir+"$$path >> $@; done

        $(Q)for path in $(BENCH_VERILOG_SUBDIRS); do echo "-y "$$path >> $@; done

        $(Q)echo "+incdir+"$(BOARD_RTL_VERILOG_INCLUDE_DIR) >> $@;

        $(Q)echo "+libext+.v" >> $@;

        $(Q)for vsrc in $(BOARD_BENCH_VERILOG_SRC); do echo $$vsrc >> $@; done

        $(Q)for vsrc in $(COMMON_BENCH_VERILOG_SRC); do echo $$vsrc >> $@; done

ifeq ($(FPGA_VENDOR), xilinx)

        $(Q)echo "+incdir+"$(TECHNOLOGY_LIBRARY_VERILOG_DIR)"/src" >> $@;

endif

        $(Q)echo >> $@

#

# Build rules

#

# Modelsim backend library compilation rules

BACKEND_LIB=lib_backend

$(BACKEND_LIB): modelsim_backend.scr

        $(Q)if [ ! -e $@ ]; then vlib $@; fi

        $(Q)echo; echo "\t### Compiling backend library ###"; echo

        $(Q)vlog -nologo $(QUIET) -work $@ -f $<

# Compile DUT into "work" library

work: modelsim_dut.scr

        $(Q)if [ ! -e $@ ]; then vlib $@; fi

        $(Q)echo; echo "\t### Compiling Verilog design library ###"; echo

        $(Q)vlog $(QUIET) -f $<  $(DUT_TOP_FILE)

        $(Q)if [ "$(RTL_VHDL_SRC)" != "" ]; then \

                echo; echo "\t### Compiling VHDL design library ###"; \

                echo; \

                vcom -93 $(QUIET) $(RTL_VHDL_SRC); \

        fi

#

# Run rule, one for each vendor

#

.PHONY : $(MODELSIM)

ifeq ($(FPGA_VENDOR), actel)

$(MODELSIM): modelsim_bench.scr $(TEST_DEFINES_VLG) $(BACKEND_LIB) $(VPI_LIBS) work

        $(Q)echo; echo "\t### Compiling testbench ###"; echo

        $(Q)vlog $(QUIET) -nologo -incr $(BENCH_TOP_FILE) -f $<

        $(Q)$(MGC_VOPT_EXE) $(QUIET) $(RTL_TESTBENCH_TOP_NAME) $(VOPT_ARGS) -L $(BACKEND_LIB) -o tb

        $(Q)echo; echo "\t### Launching simulation ###"; echo

        $(Q)vsim $(VSIM_ARGS) $(MGC_VSIM_TGT)

endif

ifeq ($(FPGA_VENDOR), xilinx)

$(MODELSIM): modelsim_bench.scr $(TEST_DEFINES_VLG) $(VPI_LIBS) work

        $(Q)echo; echo "\t### Compiling Xilinx support libs, user design & testbench ###"; echo

ifeq ($(DO_XILINX_COMPXLIB), 1)

        $(Q)$(TECHNOLOGY_BACKEND_BIN_DIR)/compxlib $(XLIB_ARGS)

endif

        $(Q)vlog $(QUIET) -nologo -incr $(BENCH_TOP_FILE) -f $<

        $(Q)$(MGC_VOPT_EXE) $(QUIET) glbl $(RTL_TESTBENCH_TOP_NAME) $(VOPT_ARGS) -o tb

        $(Q)echo; echo "\t### Launching simulation ###"; echo

        $(Q)vsim $(VSIM_ARGS) $(MGC_VSIM_TGT)

endif

ifeq ($(FPGA_VENDOR), altera)

$(MODELSIM): modelsim_bench.scr $(TEST_DEFINES_VLG) $(BACKEND_LIB) $(VPI_LIBS) work

        $(Q)echo; echo "\t### Compiling testbench ###"; echo

        $(Q)vlog $(QUIET) -nologo -incr $(BENCH_TOP_FILE) -f $<

ifneq ($(MGC_NO_VOPT), 1)

        $(Q)echo; echo "\t### Optimizing testbench ###"; echo

        $(Q)$(MGC_VOPT_EXE) $(QUIET) $(RTL_TESTBENCH_TOP_NAME) $(VOPT_ARGS) -L $(BACKEND_LIB) -o tb

endif

        $(Q)echo; echo "\t### Launching simulation ###"; echo

        $(Q)vsim $(QUIET) $(VSIM_ARGS) $(MGC_VSIM_TGT) -L $(BACKEND_LIB)

endif