SIM ?= verilator
TOPLEVEL_LANG ?= verilog
TOPLEVEL := cam_top

# MODULE ?= tests.test_cam_basic
COCOTB_TEST_MODULES ?= tests.test_cam_basic

NUM_ROWS ?= 512
HASH_BITS ?= 512
LANES ?= 16

# Noise parameters
NOISE_EN          ?= 1
NOISE_RATE_NUM    ?= 1
NOISE_RATE_DEN    ?= 100
NOISE_BITS        ?= 8
# NOISE_SEED cannot be overridden via Makefile due to Verilator -G quoting issues
# with 64'h hex literals. To change the seed, edit the default in cam_top.sv
# (sim top is cam_top, which passes it to cam_noisy).

EXTRA_ARGS += +define+NUM_ROWS=$(NUM_ROWS) +define+HASH_BITS=$(HASH_BITS) +define+LANES=$(LANES)

COMPILE_ARGS += -Wall -Wno-fatal
COMPILE_ARGS += -I$(PWD)/../rtl
COMPILE_ARGS += +define+SIM_DEBUG
COMPILE_ARGS += $(EXTRA_DEFINES)

# Noise parameter overrides via Verilator -G
COMPILE_ARGS += -GNOISE_EN=$(NOISE_EN)
COMPILE_ARGS += -GNOISE_RATE_NUM=$(NOISE_RATE_NUM)
COMPILE_ARGS += -GNOISE_RATE_DEN=$(NOISE_RATE_DEN)
COMPILE_ARGS += -GNOISE_BITS=$(NOISE_BITS)

# Cleaner terminal output
export QUIET ?= 1
export VERBOSE ?= 0
export COCOTB_LOG_LEVEL ?= INFO
export PYTHONWARNINGS ?= ignore::pytest.PytestDeprecationWarning

# Optional temporary suppression
SUPPRESS_VERILATOR_WARNINGS ?= 0
ifeq ($(SUPPRESS_VERILATOR_WARNINGS),1)
COMPILE_ARGS += -Wno-WIDTHEXPAND
COMPILE_ARGS += -Wno-UNOPTFLAT
endif

VERILOG_SOURCES += $(PWD)/../rtl/popcount.sv
VERILOG_SOURCES += $(PWD)/../rtl/argmax_update.sv
VERILOG_SOURCES += $(PWD)/../rtl/cam_core.sv
VERILOG_SOURCES += $(PWD)/../rtl/random/random128.sv
VERILOG_SOURCES += $(PWD)/../rtl/cam_noisy.sv
VERILOG_SOURCES += $(PWD)/../rtl/match_engine.sv
VERILOG_SOURCES += $(PWD)/../rtl/cam_top.sv

include $(shell uv run cocotb-config --makefiles)/Makefile.sim