crates/prometeu-compiler/src/building/linker.rs

@@ -230,7 +230,6 @@ impl Linker {
 
         // Final Exports map for ProgramImage (String -> func_idx)
         // Only including exports from the ROOT project (the last one in build plan usually)
-        // Wait, the requirement says "emit final PBS v0 image". 
         // In PBS v0, exports are name -> func_id.
         let mut final_exports = HashMap::new();
         if let Some(root_module) = modules.last() {
@@ -241,8 +240,9 @@ impl Linker {
                 }
             }
         }
+
         // v0: Fallback export for entrypoint `src/main/modules:frame` (root module)
-        if !final_exports.contains_key("src/main/modules:frame") {
+        if !final_exports.iter().any(|(name, _)| name.ends_with(":frame")) {
             if let Some(&root_offset) = module_function_offsets.last() {
                 if let Some((idx, _)) = combined_function_names.iter().find(|(i, name)| *i >= root_offset && name == "frame") {
                     final_exports.insert("src/main/modules:frame".to_string(), *idx);

crates/prometeu-compiler/tests/link_integration.rs

@@ -67,7 +67,7 @@ fn test_integration_test01_link() {
     
     let mut vm = VirtualMachine::default();
     // Use initialize to load the ROM and resolve entrypoint
-    vm.initialize(unit.rom, "src/main/modules:frame").expect("Failed to initialize VM");
+    vm.initialize(unit.rom, "frame").expect("Failed to initialize VM");
     
     let mut native = SimpleNative;
     let mut hw = SimpleHardware::new();

crates/prometeu-core/src/virtual_machine/virtual_machine.rs

@@ -160,6 +160,8 @@ impl VirtualMachine {
             // Try to resolve symbol name via ProgramImage exports
             if let Some(&func_idx) = program.exports.get(entrypoint) {
                 program.functions[func_idx as usize].code_offset as usize
+            } else if let Some(&func_idx) = program.exports.get(&format!("src/main/modules:{}", entrypoint)) {
+                program.functions[func_idx as usize].code_offset as usize
             } else {
                 return Err(VmInitError::EntrypointNotFound);
             }
@@ -183,6 +185,8 @@ impl VirtualMachine {
             (addr, idx)
         } else if let Some(&func_idx) = self.program.exports.get(entrypoint) {
             (self.program.functions[func_idx as usize].code_offset as usize, func_idx as usize)
+        } else if let Some(&func_idx) = self.program.exports.get(&format!("src/main/modules:{}", entrypoint)) {
+            (self.program.functions[func_idx as usize].code_offset as usize, func_idx as usize)
         } else {
             (0, 0)
         };