implements PR-026

crates/console/prometeu-firmware/src/firmware/firmware.rs

@@ -181,7 +181,6 @@ mod tests {
             title: "Broken Cart".into(),
             app_version: "1.0.0".into(),
             app_mode: AppMode::Game,
-            entrypoint: "".into(),
             capabilities: 0,
             program: vec![0, 0, 0, 0],
             assets: AssetsPayloadSource::empty(),
@@ -218,7 +217,6 @@ mod tests {
             title: "Trap Cart".into(),
             app_version: "1.0.0".into(),
             app_mode: AppMode::Game,
-            entrypoint: "".into(),
             capabilities: caps::GFX,
             program,
             assets: AssetsPayloadSource::empty(),

crates/console/prometeu-hal/src/cartridge.rs

@@ -22,7 +22,6 @@ pub struct Cartridge {
     pub title: String,
     pub app_version: String,
     pub app_mode: AppMode,
-    pub entrypoint: String,
     pub capabilities: CapFlags,
     pub program: Vec<u8>,
     pub assets: AssetsPayloadSource,
@@ -36,7 +35,6 @@ pub struct CartridgeDTO {
     pub title: String,
     pub app_version: String,
     pub app_mode: AppMode,
-    pub entrypoint: String,
     pub capabilities: CapFlags,
     pub program: Vec<u8>,
     pub assets: AssetsPayloadSource,
@@ -51,7 +49,6 @@ impl From<CartridgeDTO> for Cartridge {
             title: dto.title,
             app_version: dto.app_version,
             app_mode: dto.app_mode,
-            entrypoint: dto.entrypoint,
             capabilities: dto.capabilities,
             program: dto.program,
             assets: dto.assets,
@@ -305,7 +302,6 @@ pub struct CartridgeManifest {
     pub title: String,
     pub app_version: String,
     pub app_mode: AppMode,
-    pub entrypoint: String,
     #[serde(default)]
     pub capabilities: Vec<Capability>,
 }

crates/console/prometeu-hal/src/cartridge_loader.rs

@@ -85,7 +85,6 @@ impl DirectoryCartridgeLoader {
             title: manifest.title,
             app_version: manifest.app_version,
             app_mode: manifest.app_mode,
-            entrypoint: manifest.entrypoint,
             capabilities,
             program,
             assets,
@@ -277,8 +276,7 @@ mod tests {
             "app_id": 1001,
             "title": "Example",
             "app_version": "1.0.0",
-            "app_mode": "Game",
+            "app_mode": "Game"
-            "entrypoint": "main"
         });
 
         if let Some(capabilities) = capabilities {

crates/console/prometeu-system/src/virtual_machine_runtime.rs

@@ -30,7 +30,6 @@ pub struct VirtualMachineRuntime {
     pub current_cartridge_title: String,
     pub current_cartridge_app_version: String,
     pub current_cartridge_app_mode: AppMode,
-    pub current_entrypoint: String,
     pub logs_written_this_frame: HashMap<u32, u32>,
     pub telemetry_current: TelemetryFrame,
     pub telemetry_last: TelemetryFrame,

crates/console/prometeu-system/src/virtual_machine_runtime/lifecycle.rs

@@ -23,7 +23,6 @@ impl VirtualMachineRuntime {
             current_cartridge_title: String::new(),
             current_cartridge_app_version: String::new(),
             current_cartridge_app_mode: AppMode::Game,
-            current_entrypoint: String::new(),
             logs_written_this_frame: HashMap::new(),
             telemetry_current: TelemetryFrame::default(),
             telemetry_last: TelemetryFrame::default(),
@@ -97,7 +96,6 @@ impl VirtualMachineRuntime {
         self.current_cartridge_title.clear();
         self.current_cartridge_app_version.clear();
         self.current_cartridge_app_mode = AppMode::Game;
-        self.current_entrypoint.clear();
         self.logs_written_this_frame.clear();
 
         self.telemetry_current = TelemetryFrame::default();
@@ -122,13 +120,12 @@ impl VirtualMachineRuntime {
         self.clear_cartridge_state();
         vm.set_capabilities(cartridge.capabilities);
 
-        match vm.initialize(cartridge.program.clone(), &cartridge.entrypoint) {
+        match vm.initialize(cartridge.program.clone()) {
             Ok(_) => {
                 self.current_app_id = cartridge.app_id;
                 self.current_cartridge_title = cartridge.title.clone();
                 self.current_cartridge_app_version = cartridge.app_version.clone();
                 self.current_cartridge_app_mode = cartridge.app_mode;
-                self.current_entrypoint = cartridge.entrypoint.clone();
                 Ok(())
             }
             Err(e) => {

crates/console/prometeu-system/src/virtual_machine_runtime/tests.rs

@@ -59,7 +59,6 @@ fn cartridge_with_program(program: Vec<u8>, capabilities: u64) -> Cartridge {
         title: "Test Cart".into(),
         app_version: "1.0.0".into(),
         app_mode: AppMode::Game,
-        entrypoint: "".into(),
         capabilities,
         program,
         assets: AssetsPayloadSource::empty(),
@@ -270,7 +269,6 @@ fn reset_clears_cartridge_scoped_runtime_state() {
     runtime.current_cartridge_title = "Cart".into();
     runtime.current_cartridge_app_version = "1.2.3".into();
     runtime.current_cartridge_app_mode = AppMode::System;
-    runtime.current_entrypoint = "main".into();
     runtime.logs_written_this_frame.insert(42, 3);
     runtime.telemetry_current.frame_index = 8;
     runtime.telemetry_current.cycles_used = 99;
@@ -296,7 +294,6 @@ fn reset_clears_cartridge_scoped_runtime_state() {
     assert!(runtime.current_cartridge_title.is_empty());
     assert!(runtime.current_cartridge_app_version.is_empty());
     assert_eq!(runtime.current_cartridge_app_mode, AppMode::Game);
-    assert!(runtime.current_entrypoint.is_empty());
     assert!(runtime.logs_written_this_frame.is_empty());
     assert_eq!(runtime.telemetry_current.frame_index, 0);
     assert_eq!(runtime.telemetry_current.cycles_used, 0);
@@ -352,7 +349,6 @@ fn initialize_vm_failure_clears_previous_identity_and_handles() {
     assert!(runtime.current_cartridge_title.is_empty());
     assert!(runtime.current_cartridge_app_version.is_empty());
     assert_eq!(runtime.current_cartridge_app_mode, AppMode::Game);
-    assert!(runtime.current_entrypoint.is_empty());
     assert!(runtime.open_files.is_empty());
     assert_eq!(runtime.next_handle, 1);
     assert!(!runtime.paused);
@@ -1030,7 +1026,6 @@ fn tick_memcard_slot_roundtrip_for_game_profile() {
         title: "Memcard Game".into(),
         app_version: "1.0.0".into(),
         app_mode: AppMode::Game,
-        entrypoint: "".into(),
         capabilities: caps::FS,
         program,
         assets: AssetsPayloadSource::empty(),
@@ -1070,7 +1065,6 @@ fn tick_memcard_access_is_denied_for_non_game_profile() {
         title: "System App".into(),
         app_version: "1.0.0".into(),
         app_mode: AppMode::System,
-        entrypoint: "".into(),
         capabilities: caps::FS,
         program,
         assets: AssetsPayloadSource::empty(),

crates/console/prometeu-system/src/virtual_machine_runtime/tick.rs

@@ -58,7 +58,7 @@ impl VirtualMachineRuntime {
             self.begin_logical_frame(signals, hw);
 
             if self.needs_prepare_entry_call || vm.call_stack_is_empty() {
-                vm.prepare_call(&self.current_entrypoint);
+                vm.prepare_boot_call();
                 self.needs_prepare_entry_call = false;
             }
 

crates/console/prometeu-vm/src/virtual_machine.rs

@@ -2598,7 +2598,7 @@ mod tests {
     #[test]
     fn test_loader_hardening_invalid_magic() {
         let mut vm = VirtualMachine::default();
-        let res = vm.initialize(vec![0, 0, 0, 0], "");
+        let res = vm.initialize(vec![0, 0, 0, 0]);
         assert_eq!(res, Err(VmInitError::InvalidFormat));
         // VM should remain empty
         assert_eq!(vm.program.rom.len(), 0);
@@ -2611,7 +2611,7 @@ mod tests {
         header[0..4].copy_from_slice(b"PBS\0");
         header[4..6].copy_from_slice(&1u16.to_le_bytes()); // version 1 (unsupported)
 
-        let res = vm.initialize(header, "");
+        let res = vm.initialize(header);
         assert_eq!(res, Err(VmInitError::UnsupportedFormat));
     }
 
@@ -2622,7 +2622,7 @@ mod tests {
         header[0..4].copy_from_slice(b"PBS\0");
         header[8..12].copy_from_slice(&1u32.to_le_bytes()); // 1 section claimed but none provided
 
-        let res = vm.initialize(header, "");
+        let res = vm.initialize(header);
         match res {
             Err(VmInitError::ImageLoadFailed(prometeu_bytecode::LoadError::UnexpectedEof)) => {}
             _ => panic!("Expected PbsV0LoadFailed(UnexpectedEof), got {:?}", res),
@@ -2630,7 +2630,7 @@ mod tests {
     }
 
     #[test]
-    fn test_loader_hardening_entrypoint_not_found() {
+    fn test_loader_hardening_boot_protocol_entrypoint_not_found() {
         let mut vm = VirtualMachine::default();
         let header = prometeu_bytecode::model::BytecodeModule {
             version: 0,
@@ -2643,8 +2643,7 @@ mod tests {
         }
         .serialize();
 
-        // Try to initialize with numeric entrypoint 10 (out of bounds for empty ROM)
+        let res = vm.initialize(header);
-        let res = vm.initialize(header, "10");
         assert_eq!(res, Err(VmInitError::EntrypointNotFound));
 
         // VM state should not be updated
@@ -2656,22 +2655,27 @@ mod tests {
     fn test_loader_hardening_successful_init() {
         let mut vm = VirtualMachine::default();
         vm.pc = 123; // Pollution
+        let code = assemble("HALT").expect("assemble");
 
         let header = prometeu_bytecode::model::BytecodeModule {
             version: 0,
             const_pool: vec![],
-            functions: vec![],
+            functions: vec![FunctionMeta {
-            code: vec![],
+                code_offset: 0,
+                code_len: code.len() as u32,
+                ..Default::default()
+            }],
+            code,
             debug_info: None,
             exports: vec![],
             syscalls: vec![],
         }
         .serialize();
 
-        let res = vm.initialize(header, "");
+        let res = vm.initialize(header);
         assert!(res.is_ok());
         assert_eq!(vm.pc, 0);
-        assert_eq!(vm.program.rom.len(), 0);
+        assert_eq!(vm.program.rom.len(), 2);
         assert_eq!(vm.cycles, 0);
     }
 
@@ -2692,7 +2696,7 @@ mod tests {
             }],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert!(res.is_ok(), "patched hostcall should initialize");
 
@@ -2718,7 +2722,7 @@ mod tests {
             }],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert_eq!(
             res,
@@ -2758,7 +2762,7 @@ mod tests {
             ],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert_eq!(
             res,
@@ -2790,7 +2794,7 @@ mod tests {
             }],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert_eq!(
             res,
@@ -2820,7 +2824,7 @@ mod tests {
             }],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert_eq!(
             res,
@@ -2853,7 +2857,7 @@ mod tests {
             }],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert_eq!(
             res,
@@ -2888,7 +2892,7 @@ mod tests {
             }],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert_eq!(
             res,
@@ -2959,7 +2963,7 @@ mod tests {
             let mut vm = VirtualMachine::default();
             vm.set_capabilities(prometeu_hal::syscalls::caps::ALL);
             let bytes = serialized_single_hostcall_module(syscall);
-            let res = vm.initialize(bytes, "");
+            let res = vm.initialize(bytes);
             assert!(res.is_ok(), "status-first signature must be accepted: {:?}", res);
         }
     }
@@ -3015,7 +3019,7 @@ mod tests {
             let mut vm = VirtualMachine::default();
             vm.set_capabilities(prometeu_hal::syscalls::caps::ALL);
             let bytes = serialized_single_hostcall_module(syscall.clone());
-            let err = vm.initialize(bytes, "").expect_err("legacy ABI must be rejected");
+            let err = vm.initialize(bytes).expect_err("legacy ABI must be rejected");
             match err {
                 VmInitError::LoaderPatchFailed(crate::vm_init_error::LoaderPatchError::ResolveFailed(
                     prometeu_hal::syscalls::DeclaredLoadError::AbiMismatch {
@@ -3048,7 +3052,7 @@ mod tests {
         let mut header = vec![0u8; 32];
         header[0..4].copy_from_slice(b"PBS\0");
 
-        let res = vm.initialize(header, "");
+        let res = vm.initialize(header);
 
         assert_eq!(
             res,
@@ -3080,7 +3084,7 @@ mod tests {
             ],
         );
 
-        let res = vm.initialize(bytes, "");
+        let res = vm.initialize(bytes);
 
         assert_eq!(
             res,

crates/console/prometeu-vm/src/virtual_machine/loader.rs

@@ -68,11 +68,7 @@ fn patch_module_hostcalls(
 }
 
 impl VirtualMachine {
-    pub fn initialize(
+    pub fn initialize(&mut self, program_bytes: Vec<u8>) -> Result<(), VmInitError> {
-        &mut self,
-        program_bytes: Vec<u8>,
-        entrypoint: &str,
-    ) -> Result<(), VmInitError> {
         self.program = ProgramImage::default();
         self.pc = 0;
         self.operand_stack.clear();
@@ -113,23 +109,11 @@ impl VirtualMachine {
             return Err(VmInitError::InvalidFormat);
         };
 
-        let pc = if entrypoint.is_empty() {
+        let pc = program
-            program.functions.first().map(|f| f.code_offset as usize).unwrap_or(0)
-        } else if let Ok(func_idx) = entrypoint.parse::<usize>() {
-            program
             .functions
-                .get(func_idx)
+            .first()
             .map(|f| f.code_offset as usize)
-                .ok_or(VmInitError::EntrypointNotFound)?
+            .ok_or(VmInitError::EntrypointNotFound)?;
-        } else if let Some(&func_idx) = program.exports.get(entrypoint) {
-            program
-                .functions
-                .get(func_idx as usize)
-                .map(|f| f.code_offset as usize)
-                .ok_or(VmInitError::EntrypointNotFound)?
-        } else {
-            return Err(VmInitError::EntrypointNotFound);
-        };
 
         self.program = program;
         self.pc = pc;
@@ -142,6 +126,10 @@ impl VirtualMachine {
         self.capabilities = caps;
     }
 
+    pub fn prepare_boot_call(&mut self) {
+        self.prepare_call_by_index(0);
+    }
+
     pub fn prepare_call(&mut self, entrypoint: &str) {
         let func_idx = if let Ok(idx) = entrypoint.parse::<usize>() {
             idx
@@ -149,6 +137,10 @@ impl VirtualMachine {
             self.program.exports.get(entrypoint).map(|&idx| idx as usize).ok_or(()).unwrap_or(0)
         };
 
+        self.prepare_call_by_index(func_idx);
+    }
+
+    fn prepare_call_by_index(&mut self, func_idx: usize) {
         let callee = self.program.functions.get(func_idx).cloned().unwrap_or_default();
         self.pc = callee.code_offset as usize;
         self.halted = false;

crates/dev/prometeu-layer-tests/tests/verifier_closure_reject.rs

@@ -5,6 +5,6 @@ fn invalid_image_format_is_rejected_before_execution() {
     // Provide bytes that are not a valid PBS image. The VM must reject it with InvalidFormat.
     let program_bytes = b"NOT_PBS_IMAGE".to_vec();
     let mut vm = VirtualMachine::default();
-    let result = vm.initialize(program_bytes, "0");
+    let result = vm.initialize(program_bytes);
     assert!(matches!(result, Err(VmInitError::InvalidFormat)));
 }

crates/tools/pbxgen-stress/src/lib.rs

@@ -93,7 +93,7 @@ pub fn generate() -> Result<()> {
     if assets_pa_path.exists() {
         fs::remove_file(&assets_pa_path)?;
     }
-    fs::write(out_dir.join("manifest.json"), b"{\n  \"magic\": \"PMTU\",\n  \"cartridge_version\": 1,\n  \"app_id\": 1,\n  \"title\": \"Stress Console\",\n  \"app_version\": \"0.1.0\",\n  \"app_mode\": \"Game\",\n  \"entrypoint\": \"main\",\n  \"capabilities\": [\"gfx\", \"log\"]\n}\n")?;
+    fs::write(out_dir.join("manifest.json"), b"{\n  \"magic\": \"PMTU\",\n  \"cartridge_version\": 1,\n  \"app_id\": 1,\n  \"title\": \"Stress Console\",\n  \"app_version\": \"0.1.0\",\n  \"app_mode\": \"Game\",\n  \"capabilities\": [\"gfx\", \"log\"]\n}\n")?;
     Ok(())
 }