TOOLCHAIN_PREFIX = riscv64-unknown-elf- all: example.bin firmware.elf: firmware.S firmware.c firmware.lds $(TOOLCHAIN_PREFIX)gcc -Os -m32 -ffreestanding -nostdlib -o firmware.elf firmware.S firmware.c \ --std=gnu99 -Wl,-Bstatic,-T,firmware.lds,-Map,firmware.map,--strip-debug -lgcc chmod -x firmware.elf firmware.bin: firmware.elf $(TOOLCHAIN_PREFIX)objcopy -O binary firmware.elf firmware.bin chmod -x firmware.bin firmware.hex: firmware.bin python3 ../../firmware/makehex.py firmware.bin 128 > firmware.hex synth.blif: example.v firmware.hex yosys -v3 -l synth.log -p 'synth_ice40 -top top -blif synth.blif; write_verilog -attr2comment synth.v' ../../picorv32.v example.v example.txt: synth.blif arachne-pnr -d 8k -o example.txt -p example.pcf synth.blif example.bin: example.txt icepack example.txt example.bin example_tb.exe: example_tb.v example.v firmware.hex iverilog -o example_tb.exe -s testbench example.v example_tb.v ../../picorv32.v chmod -x example_tb.exe sim: example_tb.exe vvp -N example_tb.exe # +vcd prog_sram: iceprog -S example.bin clean: rm -f firmware.elf firmware.map firmware.bin firmware.hex rm -f synth.log synth.v synth.blif example.txt example.bin rm -f example_tb.exe example.vcd .PHONY: all sim prog_sram clean