intrinsics pr-01

crates/console/prometeu-bytecode/src/model.rs

@@ -591,8 +591,8 @@ fn parse_syscalls(data: &[u8]) -> Result<Vec<SyscallDecl>, LoadError> {
         if pos + module_len > data.len() {
             return Err(LoadError::UnexpectedEof);
         }
-        let module =
-            std::str::from_utf8(&data[pos..pos + module_len]).map_err(|_| LoadError::InvalidUtf8)?;
+        let module = std::str::from_utf8(&data[pos..pos + module_len])
+            .map_err(|_| LoadError::InvalidUtf8)?;
         pos += module_len;
 
         if pos + 2 > data.len() {
@@ -634,9 +634,11 @@ fn parse_syscalls(data: &[u8]) -> Result<Vec<SyscallDecl>, LoadError> {
 fn validate_module(module: &BytecodeModule) -> Result<(), LoadError> {
     let mut syscall_identities = HashSet::with_capacity(module.syscalls.len());
     for syscall in &module.syscalls {
-        if !syscall_identities
-            .insert((syscall.module.clone(), syscall.name.clone(), syscall.version))
-        {
+        if !syscall_identities.insert((
+            syscall.module.clone(),
+            syscall.name.clone(),
+            syscall.version,
+        )) {
             return Err(LoadError::DuplicateSyscallIdentity);
         }
     }

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

@@ -1,4 +1,6 @@
-use crate::firmware::firmware_state::{AppCrashesStep, FirmwareState, GameRunningStep, HubHomeStep};
+use crate::firmware::firmware_state::{
+    AppCrashesStep, FirmwareState, GameRunningStep, HubHomeStep,
+};
 use crate::firmware::prometeu_context::PrometeuContext;
 use prometeu_hal::cartridge::{AppMode, Cartridge};
 use prometeu_hal::color::Color;

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

@@ -241,11 +241,7 @@ pub enum LoadError {
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum DeclaredLoadError {
     /// The `(module, name, version)` triple is not known by the host.
-    UnknownSyscall {
-        module: String,
-        name: String,
-        version: u16,
-    },
+    UnknownSyscall { module: String, name: String, version: u16 },
     /// The cartridge lacks required capabilities for the syscall.
     MissingCapability {
         required: CapFlags,

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

@@ -0,0 +1,462 @@
+use prometeu_bytecode::Value;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct BuiltinTypeKey {
+    pub name: &'static str,
+    pub version: u16,
+}
+
+impl BuiltinTypeKey {
+    pub const fn new(name: &'static str, version: u16) -> Self {
+        Self { name, version }
+    }
+
+    pub const fn key(self) -> (&'static str, u16) {
+        (self.name, self.version)
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct BuiltinConstKey {
+    pub target: &'static str,
+    pub name: &'static str,
+    pub version: u16,
+}
+
+impl BuiltinConstKey {
+    pub const fn new(target: &'static str, name: &'static str, version: u16) -> Self {
+        Self { target, name, version }
+    }
+
+    pub const fn key(self) -> (&'static str, &'static str, u16) {
+        (self.target, self.name, self.version)
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct IntrinsicKey {
+    pub owner: &'static str,
+    pub name: &'static str,
+    pub version: u16,
+}
+
+impl IntrinsicKey {
+    pub const fn new(owner: &'static str, name: &'static str, version: u16) -> Self {
+        Self { owner, name, version }
+    }
+
+    pub const fn key(self) -> (&'static str, &'static str, u16) {
+        (self.owner, self.name, self.version)
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum BuiltinScalarType {
+    Int,
+    Float,
+    Bool,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum AbiType {
+    Scalar(BuiltinScalarType),
+    Builtin(BuiltinTypeKey),
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum BuiltinLayoutType {
+    Scalar(BuiltinScalarType),
+    Builtin(BuiltinTypeKey),
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum BuiltinTypeShape {
+    Scalar,
+    Aggregate,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct BuiltinFieldMeta {
+    pub name: &'static str,
+    pub start_slot: u16,
+    pub field_type: BuiltinLayoutType,
+    pub flat_slot_width: u16,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct BuiltinTypeMeta {
+    pub id: u32,
+    pub name: &'static str,
+    pub version: u16,
+    pub shape: BuiltinTypeShape,
+    pub fields: &'static [BuiltinFieldMeta],
+    pub flat_slot_layout: &'static [AbiType],
+    pub flat_slot_width: u16,
+}
+
+impl BuiltinTypeMeta {
+    pub const fn key(&self) -> BuiltinTypeKey {
+        BuiltinTypeKey::new(self.name, self.version)
+    }
+
+    pub fn field(&self, name: &str) -> Option<&'static BuiltinFieldMeta> {
+        self.fields.iter().find(|field| field.name == name)
+    }
+
+    pub fn flatten_layout(&self) -> Vec<AbiType> {
+        let mut out = Vec::with_capacity(self.flat_slot_width as usize);
+        self.flatten_into(&mut out);
+        out
+    }
+
+    fn flatten_into(&self, out: &mut Vec<AbiType>) {
+        match self.shape {
+            BuiltinTypeShape::Scalar => out.extend_from_slice(self.flat_slot_layout),
+            BuiltinTypeShape::Aggregate => {
+                for field in self.fields {
+                    flatten_layout_type(field.field_type, out);
+                }
+            }
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum BuiltinConstSlotValue {
+    Int32(i32),
+    Int64(i64),
+    Float(f64),
+    Bool(bool),
+    NominalBuiltin { builtin: BuiltinTypeKey, carrier: i32 },
+}
+
+pub type BuiltinConstHook = fn() -> Vec<Value>;
+
+#[derive(Debug, Clone, Copy)]
+pub enum BuiltinConstMaterializer {
+    Direct(&'static [BuiltinConstSlotValue]),
+    Hook(BuiltinConstHook),
+}
+
+#[derive(Debug, Clone, Copy)]
+pub struct BuiltinConstMeta {
+    pub key: BuiltinConstKey,
+    pub flat_slot_layout: &'static [AbiType],
+    pub flat_slot_width: u16,
+    pub materializer: BuiltinConstMaterializer,
+}
+
+impl BuiltinConstMeta {
+    pub fn direct_slots(&self) -> Option<&'static [BuiltinConstSlotValue]> {
+        match self.materializer {
+            BuiltinConstMaterializer::Direct(slots) => Some(slots),
+            BuiltinConstMaterializer::Hook(_) => None,
+        }
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum IntrinsicExecutionError {
+    ArityMismatch { expected: usize, got: usize },
+    TypeMismatch { index: usize, expected: AbiType },
+}
+
+pub type IntrinsicImplementation = fn(&[Value]) -> Result<Vec<Value>, IntrinsicExecutionError>;
+
+#[derive(Debug, Clone, Copy)]
+pub struct IntrinsicMeta {
+    pub id: u32,
+    pub owner: &'static str,
+    pub name: &'static str,
+    pub version: u16,
+    pub arg_layout: &'static [AbiType],
+    pub ret_layout: &'static [AbiType],
+    pub deterministic: bool,
+    pub may_allocate: bool,
+    pub implementation: IntrinsicImplementation,
+}
+
+impl IntrinsicMeta {
+    pub const fn key(&self) -> IntrinsicKey {
+        IntrinsicKey::new(self.owner, self.name, self.version)
+    }
+}
+
+const COLOR: BuiltinTypeKey = BuiltinTypeKey::new("color", 1);
+const VEC2: BuiltinTypeKey = BuiltinTypeKey::new("vec2", 1);
+const PIXEL: BuiltinTypeKey = BuiltinTypeKey::new("pixel", 1);
+
+const COLOR_LAYOUT: [AbiType; 1] = [AbiType::Builtin(COLOR)];
+const VEC2_LAYOUT: [AbiType; 2] =
+    [AbiType::Scalar(BuiltinScalarType::Float), AbiType::Scalar(BuiltinScalarType::Float)];
+const PIXEL_LAYOUT: [AbiType; 3] = [
+    AbiType::Scalar(BuiltinScalarType::Int),
+    AbiType::Scalar(BuiltinScalarType::Int),
+    AbiType::Builtin(COLOR),
+];
+
+const VEC2_FIELDS: [BuiltinFieldMeta; 2] = [
+    BuiltinFieldMeta {
+        name: "x",
+        start_slot: 0,
+        field_type: BuiltinLayoutType::Scalar(BuiltinScalarType::Float),
+        flat_slot_width: 1,
+    },
+    BuiltinFieldMeta {
+        name: "y",
+        start_slot: 1,
+        field_type: BuiltinLayoutType::Scalar(BuiltinScalarType::Float),
+        flat_slot_width: 1,
+    },
+];
+
+const PIXEL_FIELDS: [BuiltinFieldMeta; 3] = [
+    BuiltinFieldMeta {
+        name: "x",
+        start_slot: 0,
+        field_type: BuiltinLayoutType::Scalar(BuiltinScalarType::Int),
+        flat_slot_width: 1,
+    },
+    BuiltinFieldMeta {
+        name: "y",
+        start_slot: 1,
+        field_type: BuiltinLayoutType::Scalar(BuiltinScalarType::Int),
+        flat_slot_width: 1,
+    },
+    BuiltinFieldMeta {
+        name: "color",
+        start_slot: 2,
+        field_type: BuiltinLayoutType::Builtin(COLOR),
+        flat_slot_width: 1,
+    },
+];
+
+const BUILTIN_TYPES: [BuiltinTypeMeta; 3] = [
+    BuiltinTypeMeta {
+        id: 0x0001,
+        name: COLOR.name,
+        version: COLOR.version,
+        shape: BuiltinTypeShape::Scalar,
+        fields: &[],
+        flat_slot_layout: &COLOR_LAYOUT,
+        flat_slot_width: 1,
+    },
+    BuiltinTypeMeta {
+        id: 0x0002,
+        name: VEC2.name,
+        version: VEC2.version,
+        shape: BuiltinTypeShape::Aggregate,
+        fields: &VEC2_FIELDS,
+        flat_slot_layout: &VEC2_LAYOUT,
+        flat_slot_width: 2,
+    },
+    BuiltinTypeMeta {
+        id: 0x0003,
+        name: PIXEL.name,
+        version: PIXEL.version,
+        shape: BuiltinTypeShape::Aggregate,
+        fields: &PIXEL_FIELDS,
+        flat_slot_layout: &PIXEL_LAYOUT,
+        flat_slot_width: 3,
+    },
+];
+
+const VEC2_ZERO_LAYOUT: [AbiType; 2] =
+    [AbiType::Scalar(BuiltinScalarType::Float), AbiType::Scalar(BuiltinScalarType::Float)];
+const VEC2_ZERO_SLOTS: [BuiltinConstSlotValue; 2] =
+    [BuiltinConstSlotValue::Float(0.0), BuiltinConstSlotValue::Float(0.0)];
+const BUILTIN_CONSTS: [BuiltinConstMeta; 1] = [BuiltinConstMeta {
+    key: BuiltinConstKey::new("vec2", "zero", 1),
+    flat_slot_layout: &VEC2_ZERO_LAYOUT,
+    flat_slot_width: 2,
+    materializer: BuiltinConstMaterializer::Direct(&VEC2_ZERO_SLOTS),
+}];
+
+const VEC2_DOT_ARGS: [AbiType; 4] = [
+    AbiType::Scalar(BuiltinScalarType::Float),
+    AbiType::Scalar(BuiltinScalarType::Float),
+    AbiType::Scalar(BuiltinScalarType::Float),
+    AbiType::Scalar(BuiltinScalarType::Float),
+];
+const SINGLE_FLOAT_RET: [AbiType; 1] = [AbiType::Scalar(BuiltinScalarType::Float)];
+const VEC2_LENGTH_ARGS: [AbiType; 2] =
+    [AbiType::Scalar(BuiltinScalarType::Float), AbiType::Scalar(BuiltinScalarType::Float)];
+const INTRINSICS: [IntrinsicMeta; 2] = [
+    IntrinsicMeta {
+        id: 0x1000,
+        owner: "vec2",
+        name: "dot",
+        version: 1,
+        arg_layout: &VEC2_DOT_ARGS,
+        ret_layout: &SINGLE_FLOAT_RET,
+        deterministic: true,
+        may_allocate: false,
+        implementation: vec2_dot,
+    },
+    IntrinsicMeta {
+        id: 0x1001,
+        owner: "vec2",
+        name: "length",
+        version: 1,
+        arg_layout: &VEC2_LENGTH_ARGS,
+        ret_layout: &SINGLE_FLOAT_RET,
+        deterministic: true,
+        may_allocate: false,
+        implementation: vec2_length,
+    },
+];
+
+pub fn lookup_builtin_type(name: &str, version: u16) -> Option<&'static BuiltinTypeMeta> {
+    BUILTIN_TYPES.iter().find(|meta| meta.name == name && meta.version == version)
+}
+
+pub fn lookup_builtin_constant(
+    target: &str,
+    name: &str,
+    version: u16,
+) -> Option<&'static BuiltinConstMeta> {
+    BUILTIN_CONSTS.iter().find(|meta| {
+        meta.key.target == target && meta.key.name == name && meta.key.version == version
+    })
+}
+
+pub fn lookup_intrinsic(owner: &str, name: &str, version: u16) -> Option<&'static IntrinsicMeta> {
+    INTRINSICS
+        .iter()
+        .find(|meta| meta.owner == owner && meta.name == name && meta.version == version)
+}
+
+pub fn lookup_intrinsic_by_id(id: u32) -> Option<&'static IntrinsicMeta> {
+    INTRINSICS.iter().find(|meta| meta.id == id)
+}
+
+fn flatten_layout_type(layout_type: BuiltinLayoutType, out: &mut Vec<AbiType>) {
+    match layout_type {
+        BuiltinLayoutType::Scalar(scalar) => out.push(AbiType::Scalar(scalar)),
+        BuiltinLayoutType::Builtin(key) => {
+            let meta = lookup_builtin_type(key.name, key.version).unwrap_or_else(|| {
+                panic!("missing builtin metadata for {}@{}", key.name, key.version)
+            });
+            meta.flatten_into(out);
+        }
+    }
+}
+
+fn expect_float_arg(args: &[Value], index: usize) -> Result<f64, IntrinsicExecutionError> {
+    let value = args
+        .get(index)
+        .ok_or(IntrinsicExecutionError::ArityMismatch { expected: index + 1, got: args.len() })?;
+    value.as_float().ok_or(IntrinsicExecutionError::TypeMismatch {
+        index,
+        expected: AbiType::Scalar(BuiltinScalarType::Float),
+    })
+}
+
+fn vec2_dot(args: &[Value]) -> Result<Vec<Value>, IntrinsicExecutionError> {
+    if args.len() != 4 {
+        return Err(IntrinsicExecutionError::ArityMismatch { expected: 4, got: args.len() });
+    }
+    let ax = expect_float_arg(args, 0)?;
+    let ay = expect_float_arg(args, 1)?;
+    let bx = expect_float_arg(args, 2)?;
+    let by = expect_float_arg(args, 3)?;
+    Ok(vec![Value::Float((ax * bx) + (ay * by))])
+}
+
+fn vec2_length(args: &[Value]) -> Result<Vec<Value>, IntrinsicExecutionError> {
+    if args.len() != 2 {
+        return Err(IntrinsicExecutionError::ArityMismatch { expected: 2, got: args.len() });
+    }
+    let x = expect_float_arg(args, 0)?;
+    let y = expect_float_arg(args, 1)?;
+    Ok(vec![Value::Float((x * x + y * y).sqrt())])
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn builtin_lookup_uses_canonical_identity() {
+        let color = lookup_builtin_type("color", 1).expect("color builtin must exist");
+        assert_eq!(color.key(), COLOR);
+        assert!(lookup_builtin_type("Color", 1).is_none());
+        assert!(lookup_builtin_type("color", 2).is_none());
+    }
+
+    #[test]
+    fn builtin_layout_flattening_matches_expected_widths() {
+        let color = lookup_builtin_type("color", 1).expect("color builtin must exist");
+        assert_eq!(color.flatten_layout(), vec![AbiType::Builtin(COLOR)]);
+        assert_eq!(color.flat_slot_width, 1);
+
+        let vec2 = lookup_builtin_type("vec2", 1).expect("vec2 builtin must exist");
+        assert_eq!(vec2.flatten_layout(), vec![AbiType::Scalar(BuiltinScalarType::Float); 2]);
+        assert_eq!(vec2.flat_slot_width, 2);
+
+        let pixel = lookup_builtin_type("pixel", 1).expect("pixel builtin must exist");
+        assert_eq!(
+            pixel.flatten_layout(),
+            vec![
+                AbiType::Scalar(BuiltinScalarType::Int),
+                AbiType::Scalar(BuiltinScalarType::Int),
+                AbiType::Builtin(COLOR),
+            ]
+        );
+        assert_eq!(pixel.flat_slot_width, 3);
+    }
+
+    #[test]
+    fn builtin_field_offsets_are_stable() {
+        let vec2 = lookup_builtin_type("vec2", 1).expect("vec2 builtin must exist");
+        assert_eq!(vec2.field("x").map(|field| field.start_slot), Some(0));
+        assert_eq!(vec2.field("y").map(|field| field.start_slot), Some(1));
+
+        let pixel = lookup_builtin_type("pixel", 1).expect("pixel builtin must exist");
+        let color_field = pixel.field("color").expect("pixel.color must exist");
+        assert_eq!(color_field.start_slot, 2);
+        assert_eq!(color_field.flat_slot_width, 1);
+    }
+
+    #[test]
+    fn builtin_constant_registry_is_separate_from_intrinsics() {
+        let zero = lookup_builtin_constant("vec2", "zero", 1).expect("vec2.zero must exist");
+        assert_eq!(zero.key, BuiltinConstKey::new("vec2", "zero", 1));
+        assert_eq!(zero.flat_slot_width, 2);
+        assert_eq!(zero.flat_slot_layout, &VEC2_ZERO_LAYOUT);
+        assert_eq!(zero.direct_slots(), Some(&VEC2_ZERO_SLOTS[..]));
+        assert!(lookup_intrinsic("vec2", "zero", 1).is_none());
+    }
+
+    #[test]
+    fn intrinsic_metadata_exposes_arg_and_return_layouts() {
+        let dot = lookup_intrinsic("vec2", "dot", 1).expect("vec2.dot must exist");
+        assert_eq!(dot.arg_layout.len(), 4);
+        assert_eq!(dot.ret_layout.len(), 1);
+        assert!(dot.deterministic);
+        assert!(!dot.may_allocate);
+
+        let length = lookup_intrinsic("vec2", "length", 1).expect("vec2.length must exist");
+        assert_eq!(length.arg_layout.len(), 2);
+        assert_eq!(length.ret_layout.len(), 1);
+        assert_eq!(lookup_intrinsic_by_id(length.id).map(|meta| meta.key()), Some(length.key()));
+    }
+
+    #[test]
+    fn intrinsic_implementations_are_registered_without_syscalls() {
+        let dot = lookup_intrinsic("vec2", "dot", 1).expect("vec2.dot must exist");
+        let result = (dot.implementation)(&[
+            Value::Float(1.0),
+            Value::Float(2.0),
+            Value::Float(3.0),
+            Value::Float(4.0),
+        ])
+        .expect("dot implementation must execute");
+        assert_eq!(result, vec![Value::Float(11.0)]);
+
+        let length = lookup_intrinsic("vec2", "length", 1).expect("vec2.length must exist");
+        let result = (length.implementation)(&[Value::Float(3.0), Value::Float(4.0)])
+            .expect("length implementation must execute");
+        assert_eq!(result, vec![Value::Float(5.0)]);
+    }
+}

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

@@ -1,3 +1,4 @@
+mod builtins;
 mod call_frame;
 mod local_addressing;
 // Keep the verifier internal in production builds, but expose it for integration tests
@@ -13,6 +14,13 @@ mod verifier;
 mod virtual_machine;
 mod vm_init_error;
 
+pub use builtins::{
+    AbiType, BuiltinConstKey, BuiltinConstMaterializer, BuiltinConstMeta, BuiltinConstSlotValue,
+    BuiltinFieldMeta, BuiltinLayoutType, BuiltinScalarType, BuiltinTypeKey, BuiltinTypeMeta,
+    BuiltinTypeShape, IntrinsicExecutionError, IntrinsicImplementation, IntrinsicKey,
+    IntrinsicMeta, lookup_builtin_constant, lookup_builtin_type, lookup_intrinsic,
+    lookup_intrinsic_by_id,
+};
 pub use prometeu_hal::{HostContext, HostReturn, NativeInterface, SyscallId};
 pub use virtual_machine::{BudgetReport, LogicalFrameEndingReason, VirtualMachine};
 pub use vm_init_error::{LoaderPatchError, VmInitError};

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

@@ -1,20 +1,20 @@
 use crate::call_frame::CallFrame;
 use crate::heap::{CoroutineState, Heap};
 use crate::object::ObjectKind;
-use crate::roots::{visit_value_for_roots, RootVisitor};
+use crate::roots::{RootVisitor, visit_value_for_roots};
 use crate::scheduler::Scheduler;
 use crate::verifier::Verifier;
 use crate::vm_init_error::{LoaderPatchError, VmInitError};
 use crate::{HostContext, NativeInterface};
-use prometeu_bytecode::decode_next;
-use prometeu_bytecode::isa::core::CoreOpCode as OpCode;
-use prometeu_bytecode::model::BytecodeModule;
 use prometeu_bytecode::HeapRef;
 use prometeu_bytecode::ProgramImage;
 use prometeu_bytecode::Value;
+use prometeu_bytecode::decode_next;
+use prometeu_bytecode::isa::core::CoreOpCode as OpCode;
+use prometeu_bytecode::model::BytecodeModule;
 use prometeu_bytecode::{
-    TrapInfo, TRAP_BAD_RET_SLOTS, TRAP_DIV_ZERO, TRAP_INVALID_FUNC, TRAP_INVALID_SYSCALL,
-    TRAP_OOB, TRAP_STACK_UNDERFLOW, TRAP_TYPE,
+    TRAP_BAD_RET_SLOTS, TRAP_DIV_ZERO, TRAP_INVALID_FUNC, TRAP_INVALID_SYSCALL, TRAP_OOB,
+    TRAP_STACK_UNDERFLOW, TRAP_TYPE, TrapInfo,
 };
 use prometeu_hal::syscalls::caps::NONE;
 use prometeu_hal::vm_fault::VmFault;
@@ -23,11 +23,9 @@ fn patch_module_hostcalls(
     module: &mut BytecodeModule,
     capabilities: prometeu_hal::syscalls::CapFlags,
 ) -> Result<(), LoaderPatchError> {
-    let resolved = prometeu_hal::syscalls::resolve_declared_program_syscalls(
-        &module.syscalls,
-        capabilities,
-    )
-    .map_err(LoaderPatchError::ResolveFailed)?;
+    let resolved =
+        prometeu_hal::syscalls::resolve_declared_program_syscalls(&module.syscalls, capabilities)
+            .map_err(LoaderPatchError::ResolveFailed)?;
 
     let mut used = vec![false; module.syscalls.len()];
     let mut pc = 0usize;
@@ -1652,7 +1650,7 @@ mod tests {
     use crate::HostReturn;
     use prometeu_bytecode::model::{BytecodeModule, SyscallDecl};
     use prometeu_bytecode::{
-        assemble, disassemble, FunctionMeta, TRAP_INVALID_LOCAL, TRAP_STACK_UNDERFLOW,
+        FunctionMeta, TRAP_INVALID_LOCAL, TRAP_STACK_UNDERFLOW, assemble, disassemble,
     };
     use prometeu_hal::expect_int;
 
@@ -3028,9 +3026,7 @@ mod tests {
 
         assert_eq!(
             res,
-            Err(VmInitError::ImageLoadFailed(
-                prometeu_bytecode::LoadError::MissingSyscallSection
-            ))
+            Err(VmInitError::ImageLoadFailed(prometeu_bytecode::LoadError::MissingSyscallSection))
         );
     }
 

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

@@ -2,25 +2,10 @@
 pub enum LoaderPatchError {
     DecodeFailed(prometeu_bytecode::DecodeError),
     ResolveFailed(prometeu_hal::syscalls::DeclaredLoadError),
-    RawSyscallInPreloadArtifact {
-        pc: usize,
-        syscall_id: u32,
-    },
-    HostcallIndexOutOfBounds {
-        pc: usize,
-        sysc_index: u32,
-        syscalls_len: usize,
-    },
-    UnusedSyscallDecl {
-        sysc_index: u32,
-        module: String,
-        name: String,
-        version: u16,
-    },
-    HostcallRemaining {
-        pc: usize,
-        sysc_index: u32,
-    },
+    RawSyscallInPreloadArtifact { pc: usize, syscall_id: u32 },
+    HostcallIndexOutOfBounds { pc: usize, sysc_index: u32, syscalls_len: usize },
+    UnusedSyscallDecl { sysc_index: u32, module: String, name: String, version: u16 },
+    HostcallRemaining { pc: usize, sysc_index: u32 },
 }
 
 #[derive(Debug, Clone, PartialEq, Eq)]