《周书·列传·卷二十七》
因为立功，蔡枯被晋为公爵，增加食邑三百户，授任京兆郡守。
以功进爵为公，增邑三百户，授京兆郡守。
In recognition of his meritorious service, Cai Fu was promoted to the rank of duke, his fief was increased by three hundred households, and he was appointed governor of Jingzhao.
<s>[INST] 请提供这段文言文的现代汉语解释: 以功进爵为公，增邑三百户，授京兆郡守。 [/INST] 因为立功，蔡枯被晋为公爵，增加食邑三百户，授任京兆郡守。</s>
请提供这段文言文的现代汉语解释: 以功进爵为公，增邑三百户，授京兆郡守。
user
因为立功，蔡枯被晋为公爵，增加食邑三百户，授任京兆郡守。
assistant