nuclei-sdk/tools/scripts/nsdk_cli/configs/cpu/std/n300.json

{
    "build_config": {
        "CPU_SERIES": "300"
    },
    "build_configs": {
        "rv32imac": {"CORE":"n300"},
        "rv32imafc": {"CORE":"n300f", "ARCH_EXT":""},
        "rv32imafdc": {"CORE":"n300fd", "ARCH_EXT":""}
    }
}