1 files changed, 65 insertions, 0 deletions
diff --git a/prog/Makefile b/prog/Makefile
new file mode 100644
index 0000000..a5dfeaa
--- /dev/null
+++ b/prog/Makefile
@@ -0,0 +1,65 @@
+BUILD_DIR ?= build
+
+# risc-v toolchain
+RISCV_TOOLCHAIN = riscv64-unknown-elf
+RISCV_AS        = $(RISCV_TOOLCHAIN)-as
+RISCV_CC        = $(RISCV_TOOLCHAIN)-gcc
+RISCV_LD        = $(RISCV_TOOLCHAIN)-ld
+RISCV_OBJCOPY   = $(RISCV_TOOLCHAIN)-objcopy
+RISCV_OBJDUMP   = $(RISCV_TOOLCHAIN)-objdump
+RISCV_SIZE      = $(RISCV_TOOLCHAIN)-size
+
+# assembler / compiler / linker flags
+RISCV_ASFLAGS = -march=rv32i -mabi=ilp32
+RISCV_CFLAGS  = -march=rv32i -mabi=ilp32
+RISCV_LDFLAGS = -T link.ld -m elf32lriscv
+
+# dirs and files
+SOURCE_DIR = src
+AS_SOURCES = $(wildcard $(SOURCE_DIR)/*.s)
+C_SOURCES  = $(wildcard $(SOURCE_DIR)/*.c)
+OBJ_FILES  = $(AS_SOURCES:$(SOURCE_DIR)/%.s=$(BUILD_DIR)/%.o) $(C_SOURCES:$(SOURCE_DIR)/%.c=$(BUILD_DIR)/%.o)
+ELF_FILE   = $(BUILD_DIR)/prog.elf
+BIN_FILE   = $(BUILD_DIR)/prog.bin
+ROM_FILE   = $(BUILD_DIR)/rom.hex
+
+
+# targets
+all: $(ROM_FILE)
+
+# assemble assembly files to object files
+$(BUILD_DIR)/%.o: $(SOURCE_DIR)/%.s | $(BUILD_DIR)
+	$(RISCV_AS) $(RISCV_ASFLAGS) -o $@ $<
+
+# compile source files to object files
+$(BUILD_DIR)/%.o: $(SOURCE_DIR)/%.c | $(BUILD_DIR)
+	$(RISCV_CC) $(RISCV_CFLAGS) -c -o $@ $<
+
+# link object files to elf file
+$(ELF_FILE): $(OBJ_FILES)
+	$(RISCV_LD) $(RISCV_LDFLAGS) -o $@ $^
+
+# create binary file from elf file
+$(BIN_FILE): $(ELF_FILE)
+	$(RISCV_OBJCOPY) -O binary $< $@
+
+# convert binary file hex file
+$(ROM_FILE): $(BIN_FILE)
+	xxd -g 4 -c 4 -p $< | awk '{print substr($$0,7,2) substr($$0,5,2) substr($$0,3,2) substr($$0,1,2)}' > $@
+
+# create build dir
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+
+# create objdump of elf file and print
+objdump: $(ELF_FILE)
+	$(RISCV_OBJDUMP) -d -x --disassembler-color=on $(ELF_FILE)
+
+# display size information of elf file
+size: $(ELF_FILE)
+	$(RISCV_SIZE) $(ELF_FILE)
+
+clean:
+	rm -rf $(BUILD_DIR)
+
+.PHONY: all clean objdump size
+\ No newline at end of file