adds first version of cmake

env/iss/CMakeLists.txt

@@ -0,0 +1,26 @@
+# Create library for ISS board support
+add_library(board_iss STATIC
+    init.c
+    write.c
+)
+
+# Include directories
+target_include_directories(board_iss PUBLIC
+    ${BSP_BASE}/include
+    ${BSP_BASE}/env
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+# Set compile options
+target_compile_options(board_iss PRIVATE
+    -march=${RISCV_ARCH}_zicsr_zifencei
+    -mabi=${RISCV_ABI}
+    -mcmodel=medany
+    -ffunction-sections
+    -fdata-sections
+)
+
+# Add compile definitions
+target_compile_definitions(board_iss PRIVATE
+    BOARD_${BOARD}
+)