diff --git a/src/backend/Assembly.zig b/src/backend/Assembly.zig
index ec9d671034bd211f4d1064014b7bca08927052e0..b58247380c4b854a82502d3adbd4a3f30e581837 100644
--- a/src/backend/Assembly.zig
+++ b/src/backend/Assembly.zig
@@ -6,12 +6,34 @@ text: []const u8,
 
 const Assembly = @This();
 
+/// 释放Assembly对象占用的内存
+///
+/// 释放由Assembly对象分配的data和text段内存
+///
+/// Parameters:
+///   - self: Assembly对象的常量指针
+///   - gpa: 通用分配器，用于释放内存
 pub fn deinit(self: *const Assembly, gpa: Allocator) void {
     gpa.free(self.data);
     gpa.free(self.text);
 }
 
-pub fn writeToFile(self: Assembly, file: std.fs.File) !void {
+/// 将汇编的data段和text段写入文件
+///
+/// 使用writevAll系统调用一次性写入数据段和代码段，
+/// 保持数据的原始顺序（先data后text）
+///
+/// Parameters:
+///   - self: Assembly对象（按值传递）
+///   - file: 目标文件句柄
+///
+/// Returns:
+///   - void: 写入成功
+///   - error: 文件写入相关的错误
+///
+/// Error Conditions:
+///   - 文件写入失败时返回错误
+pub fn writeToAllFile(self: Assembly, file: std.fs.File) !void {
     var vec: [2]std.posix.iovec_const = .{
         .{ .base = self.data.ptr, .len = self.data.len },
         .{ .base = self.text.ptr, .len = self.text.len },