Makefile

# Variables
ASSEMBLER_SCRIPT = assembler/main.py
MEM_FILE = simulation/memory.mem

# == 1. CONFIGURABLE INPUTS (The ?= means "use this unless user overrides it") ==
# Usage: make asm ASM_SOURCE=assembler/programs/fibonacci.asm
ASM_SOURCE ?= assembler/programs/test_prog.asm

# Usage: make compile COMPILE_SCRIPT=scripts/compile_alu.do
COMPILE_SCRIPT ?= scripts/compile.do

# Usage: make sim SIM_SCRIPT=scripts/run_alu.do
SIM_SCRIPT ?= scripts/run.do

# Tools
PYTHON = python3
ifeq ($(OS),Windows_NT)
    EXE := .exe
else
    EXE :=
endif

VSIM = vsim$(EXE)
VCOM = vcom$(EXE)
VLIB = vlib$(EXE)
VMAP = vmap$(EXE)


# Directories
WORK_DIR = simulation/work

# Default target
all: clean asm lib compile sim

# 1. Run the Assembler
asm:
	@echo "--- Assembling $(ASM_SOURCE) ---"
	$(PYTHON) $(ASSEMBLER_SCRIPT) $(ASM_SOURCE) > $(MEM_FILE)

# 2. Create ModelSim Library
lib:
	@echo "--- Creating Library ---"
	cd simulation && $(VLIB) work
	cd simulation && $(VMAP) work work

# 3. Compile VHDL
# Uses $(COMPILE_SCRIPT) which defaults to "scripts/compile.do"
compile:
	@echo "--- Compiling with $(COMPILE_SCRIPT) ---"
	cd simulation && $(VSIM) -c -do "do $(COMPILE_SCRIPT); quit"

# 4. Run Simulation (GUI Mode)
# Uses $(SIM_SCRIPT) which defaults to "scripts/run.do"
sim:
	@echo "--- Simulating with $(SIM_SCRIPT) ---"
	cd simulation && $(VSIM) -gui -do "do $(SIM_SCRIPT)"

# 5. Clean up ModelSim trash
clean:
	@echo "--- Cleaning ---"
	rm -rf $(WORK_DIR)
	rm -f simulation/transcript
	rm -f simulation/*.wlf
	rm -f $(MEM_FILE)