diff --git a/compiler/src/main.cpp b/compiler/src/main.cpp
index a45da05..e7bccc1 100644
--- a/compiler/src/main.cpp
+++ b/compiler/src/main.cpp
@@ -10,12 +10,18 @@
 #include <string>
 #include <vector>
 
+#include "compiler/Codegen.h"
+#include "compiler/Linker.h"
 #include "compiler/Project.h"
+#include "compiler/Typecheck.h"
+#include "isa/Image.h"
 
 namespace {
     void usage() {
-        std::printf("usage: STCompiler <project.toml>\n"
-                    "  解析工程并打印文件集合与工程哈希（12.3 阶段）\n"
+        std::printf("usage: STCompiler <project.toml> [-o <name>.stb]\n"
+                    "  解析工程并编译（词法 → 语法 → 链接 → 类型 → 寄存器码）\n"
+                    "  -o <name>.stb   编译并写出映像文件\n"
+                    "  无 -o           只打印文件集合与工程哈希（12.3 阶段）\n"
                     "  --help          打印本帮助\n");
     }
 }
@@ -31,24 +37,68 @@ int main(int argc, char** argv) {
         return 0;
     }
 
+    const std::string toml_path = argv[1];
+    std::string out_path;
+    for (int i = 2; i + 1 < argc; ++i) {
+        if (std::strcmp(argv[i], "-o") == 0) {
+            out_path = argv[i + 1];
+        }
+    }
+
     compiler::Project proj;
     std::string err;
-    if (!compiler::parse_project(argv[1], &proj, &err)) {
+    if (!compiler::parse_project(toml_path, &proj, &err)) {
         std::fprintf(stderr, "error: %s\n", err.c_str());
         return 1;
     }
     const std::vector<std::string> files = compiler::compile_files(proj);
-    uint64_t hash = 0;
-    if (!compiler::compute_project_hash(proj, &hash, &err)) {
+
+    if (out_path.empty()) {
+        uint64_t hash = 0;
+        if (!compiler::compute_project_hash(proj, &hash, &err)) {
+            std::fprintf(stderr, "error: %s\n", err.c_str());
+            return 1;
+        }
+        std::printf("project: %s\n", proj.name.c_str());
+        std::printf("files:\n");
+        for (const std::string& f : files) {
+            std::printf("  %s\n", f.c_str());
+        }
+        std::printf("hash: 0x%016llx\n", static_cast<unsigned long long>(hash));
+        return 0;
+    }
+
+    // 完整管线：读 .st → 链接 → 类型检查 → 寄存器码
+    std::vector<compiler::SourceUnit> units;
+    for (const std::string& f : files) {
+        compiler::SourceUnit u;
+        if (!compiler::load_unit(proj.base_dir + "/" + f, &u, &err)) {
+            std::fprintf(stderr, "error: %s\n", err.c_str());
+            return 1;
+        }
+        units.push_back(std::move(u));
+    }
+    compiler::LinkResult link;
+    if (!compiler::link_project(proj, units, &link, &err)) {
+        std::fprintf(stderr, "error: %s\n", err.c_str());
+        return 1;
+    }
+    if (!compiler::check_project(proj, units, link, &err)) {
+        std::fprintf(stderr, "error: %s\n", err.c_str());
+        return 1;
+    }
+    std::vector<uint8_t> image;
+    if (!compiler::codegen_project(proj, units, link, &image, &err)) {
+        std::fprintf(stderr, "error: %s\n", err.c_str());
+        return 1;
+    }
+    if (!isa::write_stb_file(out_path.c_str(), image, &err)) {
         std::fprintf(stderr, "error: %s\n", err.c_str());
         return 1;
     }
 
-    std::printf("project: %s\n", proj.name.c_str());
-    std::printf("files:\n");
-    for (const std::string& f : files) {
-        std::printf("  %s\n", f.c_str());
-    }
-    std::printf("hash: 0x%016llx\n", static_cast<unsigned long long>(hash));
+    const isa::ImageView v = isa::ImageView::from(image);
+    std::printf("compiled: %s (%zu bytes, %u functions, %u globals)\n",
+                out_path.c_str(), image.size(), v.header().n_funcs, v.header().n_globals);
     return 0;
 }