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softfloat library integration

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This commit is contained in:
Blaise Tine
2021-10-10 13:20:50 -07:00
parent 28e26f3130
commit b8682f56ac
21 changed files with 400 additions and 818 deletions
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47
sim/rtlsim/Makefile
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@@ -1,8 +1,12 @@
CXXFLAGS += -std=c++11 -O2 -Wall -Wextra -Wfatal-errors
#CXXFLAGS += -std=c++11 -g -O0 -Wall -Wextra -Wfatal-errors
RTL_DIR=../../hw/rtl
DPI_DIR=../../hw/dpi
CXXFLAGS += -std=c++11 -Wall -Wextra -Wfatal-errors
CXXFLAGS += -fPIC -Wno-maybe-uninitialized
CXXFLAGS += -I../../../hw -I../../common
CXXFLAGS += -I../../common/softfloat/source/include
LDFLAGS += ../../common/softfloat/build/Linux-x86_64-GCC/softfloat.a
# control RTL debug print states
DBG_PRINT_FLAGS += -DDBG_PRINT_PIPELINE
@@ -21,16 +25,10 @@ DBG_FLAGS += $(DBG_PRINT_FLAGS)
DBG_FLAGS += -DDBG_CACHE_REQ_INFO
DBG_FLAGS += -DVCD_OUTPUT
SINGLECORE = -DNUM_CLUSTERS=1 -DNUM_CORES=1 -DL2_ENABLE=0
MULTICORE = -DNUM_CLUSTERS=1 -DNUM_CORES=2 -DL2_ENABLE=0
RTL_DIR=../../hw/rtl
DPI_DIR=../../hw/dpi
FPU_INCLUDE = -I$(RTL_DIR)/fp_cores -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/include -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/src -I$(RTL_DIR)/fp_cores/fpnew/src/fpu_div_sqrt_mvp/hdl -I$(RTL_DIR)/fp_cores/fpnew/src
RTL_INCLUDE = -I$(RTL_DIR) -I$(DPI_DIR) -I$(RTL_DIR)/libs -I$(RTL_DIR)/interfaces -I$(RTL_DIR)/cache -I$(RTL_DIR)/simulate $(FPU_INCLUDE)
SRCS = ../common/util.cpp ../common/mem.cpp
SRCS = ../common/util.cpp ../common/mem.cpp ../common/rvfloats.cpp
SRCS += $(DPI_DIR)/util_dpi.cpp $(DPI_DIR)/float_dpi.cpp
SRCS += main.cpp simulator.cpp
@@ -52,10 +50,10 @@ VL_FLAGS += $(RTL_INCLUDE)
# Debugigng
ifdef DEBUG
VL_FLAGS += -DVCD_OUTPUT --trace --trace-structs $(DBG_FLAGS)
CXXFLAGS += -DVCD_OUTPUT $(DBG_FLAGS)
CXXFLAGS += -g -O0 -DVCD_OUTPUT $(DBG_FLAGS)
else
VL_FLAGS += -DNDEBUG
CXXFLAGS += -DNDEBUG
CXXFLAGS += -O2 -DNDEBUG
endif
# Enable perf counters
@@ -69,36 +67,21 @@ VL_FLAGS += -DIMUL_DPI
VL_FLAGS += -DIDIV_DPI
# FPU backend
FPU_CORE ?= FPU_FPNEW
FPU_CORE ?= FPU_DPI
VL_FLAGS += -D$(FPU_CORE)
THREADS ?= $(shell python3 -c 'import multiprocessing as mp; print(max(1, mp.cpu_count() // 2))')
PROJECT = rtlsim
all: build-s
all: $(PROJECT)
build-s: $(SRCS)
verilator --build $(VL_FLAGS) -DNDEBUG $(SRCS) $(SINGLECORE) -CFLAGS '$(CXXFLAGS) -DNDEBUG $(SINGLECORE)' -o ../$(PROJECT)
$(PROJECT): $(SRCS)
verilator --build $(VL_FLAGS) $(SRCS) -CFLAGS '$(CXXFLAGS)' -LDFLAGS '$(LDFLAGS)' -o ../$(PROJECT)
build-sd: $(SRCS)
verilator --build $(VL_FLAGS) $(SRCS) $(SINGLECORE) -CFLAGS '$(CXXFLAGS) $(DBG_FLAGS) $(SINGLECORE)' --trace --trace-structs $(DBG_FLAGS) -o ../$(PROJECT)
build-st: $(SRCS)
verilator --build $(VL_FLAGS) -DNDEBUG $(SRCS) $(SINGLECORE) -CFLAGS '$(CXXFLAGS) -DNDEBUG $(SINGLECORE)' --threads $(THREADS) -o ../$(PROJECT)
build-m: $(SRCS)
verilator --build $(VL_FLAGS) -DNDEBUG $(SRCS) $(MULTICORE) -CFLAGS '$(CXXFLAGS) -DNDEBUG $(MULTICORE)' -o ../$(PROJECT)
build-md: $(SRCS)
verilator --build $(VL_FLAGS) $(SRCS) $(MULTICORE) -CFLAGS '$(CXXFLAGS) $(DBG_FLAGS) $(MULTICORE)' --trace --trace-structs $(DBG_FLAGS) -o ../$(PROJECT)
build-mt: $(SRCS)
verilator --build $(VL_FLAGS) -DNDEBUG $(SRCS) $(MULTICORE) -CFLAGS '$(CXXFLAGS) -DNDEBUG $(MULTICORE)' --threads $(THREADS) -o ../$(PROJECT)
static: $(SRCS)
verilator --build $(VL_FLAGS) $(SRCS) -CFLAGS '$(CXXFLAGS)'
$(AR) rs lib$(PROJECT).a obj_dir/*.o
verilator --build $(VL_FLAGS) $(SRCS) -CFLAGS '$(CXXFLAGS)' -LDFLAGS '$(LDFLAGS)'
$(AR) rcs lib$(PROJECT).a obj_dir/*.o
clean-static:
rm -rf lib$(PROJECT).a obj_dir