ci: add npc difftest

npc/CMakeLists.txt

@@ -15,6 +15,7 @@ option(BUILD_SIM_TARGET "Whether to build verilator simulation binary" ON)
 cmake_dependent_option(BUILD_SIM_NVBOARD_TARGET "Whether to build nvboard target" OFF "BUILD_SIM_TARGET" OFF)
 option(ENABLE_YSYX_GIT_TRACKER "Ysyx tracker support" OFF)
 set(TOPMODULE "Flow" CACHE STRING "Topmodule name in chisel")
+set(DIFFTEST_LIB "" CACHE STRING "Dynamic library file used as difftest reference")
 
 # -- Ysyx tracker, configure
 if(ENABLE_YSYX_GIT_TRACKER)
@@ -61,12 +62,6 @@ include_directories(include)
 
 add_subdirectory(csrc)
 
-add_test(
-  NAME V${TOPMODULE}
-  COMMAND V${TOPMODULE}
-    --no-bin -m ${PROJECT_SOURCE_DIR}/resource/addi.txt
-    --diff-lib /home/xin/repo/ysyx-workbench/nemu/build/riscv32-nemu-interpreter-so)
-
 # -- Add build tracking
 if(ENABLE_YSYX_GIT_TRACKER)
   add_custom_command(

npc/csrc/Flow/CMakeLists.txt

@@ -9,3 +9,9 @@ verilate(V${TOPMODULE} TRACE COVERAGE THREADS
   VERILATOR_ARGS
     "--vpi"   # Enable VPI
 )
+
+add_test(
+  NAME V${TOPMODULE}
+  COMMAND V${TOPMODULE}
+    --no-bin -m ${PROJECT_SOURCE_DIR}/resource/addi.txt
+    --diff-lib ${DIFFTEST_LIB})