mcode->mach

meson.build

@@ -46,7 +46,6 @@ src += [        # core
   'miniz.c',
   'runtime.c',
   'mach.c',
-  'mcode.c',
   'libregexp.c', 'libunicode.c', 'cutils.c', 'dtoa.c'
 ]
 

parse.cm

@@ -65,7 +65,7 @@ var parse = function(tokens, src, filename, tokenizer) {
 
   var errors = []
   var error_count = 0
-  var function_nr = 1
+  var fn_counter = 1
 
   var ast_node = function(kind, token) {
     return {
@@ -422,8 +422,8 @@ var parse = function(tokens, src, filename, tokenizer) {
           _control_depth = meth_old_cd
           _control_type = meth_old_ct
           _expecting_body = meth_old_eb
-          fn.function_nr = function_nr
+          fn.function_nr = fn_counter
-          function_nr = function_nr + 1
+          fn_counter = fn_counter + 1
           ast_node_end(fn)
           pair.right = fn
         } else if (is_ident && (tok.kind == "," || tok.kind == "}")) {
@@ -918,8 +918,8 @@ var parse = function(tokens, src, filename, tokenizer) {
     _control_depth = old_cd
     _control_type = old_ct
     _expecting_body = old_eb
-    node.function_nr = function_nr
+    node.function_nr = fn_counter
-    function_nr = function_nr + 1
+    fn_counter = fn_counter + 1
     ast_node_end(node)
     return node
   }
@@ -1008,8 +1008,8 @@ var parse = function(tokens, src, filename, tokenizer) {
     _control_depth = old_cd
     _control_type = old_ct
     _expecting_body = old_eb
-    node.function_nr = function_nr
+    node.function_nr = fn_counter
-    function_nr = function_nr + 1
+    fn_counter = fn_counter + 1
     ast_node_end(node)
     return node
   }

regen.cm

@@ -6,6 +6,8 @@ var json = use("json")
 var tokenize = use("tokenize")
 var parse = use("parse")
 var fold = use("fold")
+var mcode = use("mcode")
+var streamline = use("streamline")
 
 var files = [
   {src: "tokenize.cm", name: "tokenize", out: "tokenize.mach"},
@@ -25,21 +27,49 @@ var src = null
 var tok_result = null
 var ast = null
 var folded = null
-var ast_json = null
+var compiled = null
+var optimized = null
+var mcode_json = null
 var bytecode = null
 var f = null
+var errs = null
+var ei = 0
+var e = null
+var had_errors = false
 
 while (i < length(files)) {
   entry = files[i]
   src = text(fd.slurp(entry.src))
   tok_result = tokenize(src, entry.src)
   ast = parse(tok_result.tokens, src, entry.src, tokenize)
+  // Check for parse/semantic errors
+  errs = ast.errors
+  if (errs != null && length(errs) > 0) {
+    ei = 0
+    while (ei < length(errs)) {
+      e = errs[ei]
+      if (e.line != null) {
+        print(`${entry.src}:${text(e.line)}:${text(e.column)}: error: ${e.message}`)
+      } else {
+        print(`${entry.src}: error: ${e.message}`)
+      }
+      ei = ei + 1
+    }
+    had_errors = true
+    i = i + 1
+    continue
+  }
   folded = fold(ast)
-  ast_json = json.encode(folded)
+  compiled = mcode(folded)
-  bytecode = mach_compile_ast(entry.name, ast_json)
+  optimized = streamline(compiled)
+  mcode_json = json.encode(optimized)
+  bytecode = mach_compile_mcode_bin(entry.name, mcode_json)
   f = fd.open(entry.out, "w")
   fd.write(f, bytecode)
   fd.close(f)
   print(`wrote ${entry.out}`)
   i = i + 1
 }
+if (had_errors) {
+  print("regen aborted: fix errors above")
+}

source/cell.c

@@ -12,7 +12,6 @@
 #include "cJSON.h"
 
 #define BOOTSTRAP_MACH "internal/bootstrap.mach"
-#define BOOTSTRAP_AST  "internal/bootstrap.ast.json"
 #define BOOTSTRAP_SRC  "internal/bootstrap.cm"
 #define CELL_SHOP_DIR ".cell"
 #define CELL_CORE_DIR "packages/core"
@@ -179,14 +178,9 @@ void script_startup(cell_rt *prt)
   cell_rt *crt = JS_GetContextOpaque(js);
   JS_FreeValue(js, js_blob_use(js));
 
-  // Load pre-compiled bootstrap bytecode (.mach), fall back to AST JSON
+  // Load pre-compiled bootstrap bytecode (.mach)
   size_t boot_size;
-  int boot_is_bin = 1;
   char *boot_data = load_core_file(BOOTSTRAP_MACH, &boot_size);
-  if (!boot_data) {
-    boot_is_bin = 0;
-    boot_data = load_core_file(BOOTSTRAP_AST, &boot_size);
-  }
   if (!boot_data) {
     printf("ERROR: Could not load bootstrap from %s!\n", core_path);
     return;
@@ -225,17 +219,8 @@ void script_startup(cell_rt *prt)
 
   // Run through MACH VM
   crt->state = ACTOR_RUNNING;
-  JSValue v;
+  JSValue v = JS_RunMachBin(js, (const uint8_t *)boot_data, boot_size, hidden_env);
-  if (boot_is_bin) {
-    v = JS_RunMachBin(js, (const uint8_t *)boot_data, boot_size, hidden_env);
   free(boot_data);
-  } else {
-    cJSON *ast = cJSON_Parse(boot_data);
-    free(boot_data);
-    if (!ast) { printf("ERROR: Failed to parse bootstrap AST\n"); return; }
-    v = JS_RunMachTree(js, ast, hidden_env);
-    cJSON_Delete(ast);
-  }
   uncaught_exception(js, v);
   crt->state = ACTOR_IDLE;
   set_actor_state(crt);
@@ -359,12 +344,7 @@ int cell_init(int argc, char **argv)
   actor_initialize();
 
   size_t boot_size;
-  int boot_is_bin = 1;
   char *boot_data = load_core_file(BOOTSTRAP_MACH, &boot_size);
-  if (!boot_data) {
-    boot_is_bin = 0;
-    boot_data = load_core_file(BOOTSTRAP_AST, &boot_size);
-  }
   if (!boot_data) {
     printf("ERROR: Could not load bootstrap from %s\n", core_path);
     return 1;
@@ -433,17 +413,8 @@ int cell_init(int argc, char **argv)
   JS_SetPropertyStr(ctx, hidden_env, "args", args_arr);
   hidden_env = JS_Stone(ctx, hidden_env);
 
-  JSValue result;
+  JSValue result = JS_RunMachBin(ctx, (const uint8_t *)boot_data, boot_size, hidden_env);
-  if (boot_is_bin) {
-    result = JS_RunMachBin(ctx, (const uint8_t *)boot_data, boot_size, hidden_env);
   free(boot_data);
-  } else {
-    cJSON *ast = cJSON_Parse(boot_data);
-    free(boot_data);
-    if (!ast) { printf("Failed to parse bootstrap AST\n"); JS_FreeContext(ctx); JS_FreeRuntime(g_runtime); return 1; }
-    result = JS_RunMachTree(ctx, ast, hidden_env);
-    cJSON_Delete(ast);
-  }
 
   int exit_code = 0;
   if (JS_IsException(result)) {

source/quickjs-internal.h

@@ -812,28 +812,6 @@ typedef struct JSCodeRegister {
   uint16_t disruption_pc;     /* start of disruption handler (0 = none) */
 } JSCodeRegister;
 
-/* Pre-parsed MCODE for a single function (off-heap, never GC'd).
-   Created by jsmcode_parse from cJSON MCODE output.
-   Instructions remain as cJSON pointers for string-based dispatch. */
-typedef struct JSMCode {
-  uint16_t nr_args;
-  uint16_t nr_slots;
-  /* Pre-flattened instruction array (cJSON array items → C array for O(1) access) */
-  cJSON **instrs;
-  uint32_t instr_count;
-  /* Label map: label string → instruction index */
-  struct { const char *name; uint32_t index; } *labels;
-  uint32_t label_count;
-  /* Nested function definitions (indexes into top-level functions array) */
-  struct JSMCode **functions;
-  uint32_t func_count;
-  /* Keep root cJSON alive (owns all the cJSON nodes instrs[] point into) */
-  cJSON *json_root;
-  MachLineEntry *line_table;  /* [instr_count], parallel to instrs[] */
-  const char *name;           /* function name (points into cJSON tree) */
-  const char *filename;       /* source filename (points into cJSON tree) */
-  uint16_t disruption_pc;     /* start of disruption handler (0 = none) */
-} JSMCode;
 
 /* Frame for closures - used by link-time relocation model where closures
    reference outer frames via (depth, slot) addressing.
@@ -1306,7 +1284,6 @@ typedef enum {
   JS_FUNC_KIND_BYTECODE,
   JS_FUNC_KIND_C_DATA,
   JS_FUNC_KIND_REGISTER,   /* register-based VM function */
-  JS_FUNC_KIND_MCODE,      /* MCODE JSON interpreter */
 } JSFunctionKind;
 
 typedef struct JSFunction {
@@ -1330,11 +1307,6 @@ typedef struct JSFunction {
       JSValue env_record;       /* stone record, module environment */
       JSValue outer_frame;      /* JSFrame JSValue, for closures */
     } reg;
-    struct {
-      JSMCode *code;            /* pre-parsed MCODE (off-heap) */
-      JSValue outer_frame;      /* lexical parent frame for closures */
-      JSValue env_record;       /* module env or JS_NULL */
-    } mcode;
   } u;
 } JSFunction;
 
@@ -1527,8 +1499,6 @@ JSValue js_call_c_function (JSContext *ctx, JSValue func_obj, JSValue this_obj,
 JSValue js_call_bound_function (JSContext *ctx, JSValue func_obj, JSValue this_obj, int argc, JSValue *argv);
 JSValue JS_CallInternal (JSContext *ctx, JSValue func_obj, JSValue this_obj, int argc, JSValue *argv, int flags);
 JSValue JS_CallRegisterVM(JSContext *ctx, JSCodeRegister *code, JSValue this_obj, int argc, JSValue *argv, JSValue env, JSValue outer_frame);
-JSValue mcode_exec(JSContext *ctx, JSMCode *code, JSValue this_obj,
-                          int argc, JSValue *argv, JSValue outer_frame);
 int JS_DeleteProperty (JSContext *ctx, JSValue obj, JSValue prop);
 JSValue __attribute__ ((format (printf, 2, 3)))
 JS_ThrowInternalError (JSContext *ctx, const char *fmt, ...);
@@ -1860,13 +1830,6 @@ typedef struct {
 } GetLineColCache;
 
 
-/* === MachVarInfo (shared by mach.c and mcode.c) === */
-typedef struct MachVarInfo {
-  char *name;
-  int slot;
-  int is_const;    /* 1 for def, function args; 0 for var */
-  int is_closure;  /* 1 if captured by a nested function */
-} MachVarInfo;
 
 /* === PPretext (parser pretext, system-malloc, used by cell_js.c parser) === */
 typedef struct PPretext {
@@ -2057,8 +2020,5 @@ JSFrameRegister *alloc_frame_register(JSContext *ctx, int slot_count);
 cJSON *mach_find_scope_record(cJSON *scopes, int function_nr);
 int reg_vm_check_interrupt(JSContext *ctx);
 
-/* mcode.c exports */
-JSValue mcode_exec(JSContext *ctx, JSMCode *code, JSValue this_obj, int argc, JSValue *argv, JSValue outer_frame);
-
 
 #endif /* QUICKJS_INTERNAL_H */

source/quickjs.h

@@ -1091,34 +1091,12 @@ MachCode *JS_DeserializeMachCode(const uint8_t *data, size_t size);
 /* Load compiled MachCode into a JSContext, materializing JSValues. */
 struct JSCodeRegister *JS_LoadMachCode(JSContext *ctx, MachCode *mc, JSValue env);
 
-/* Dump MACH bytecode to stdout. Takes AST cJSON tree. */
-void JS_DumpMachTree (JSContext *ctx, struct cJSON *ast, JSValue env);
-
-/* Dump MACH bytecode to stdout. Takes AST JSON string. */
-void JS_DumpMach (JSContext *ctx, const char *ast_json, JSValue env);
-
-/* Compile and execute MACH bytecode from AST cJSON tree. */
-JSValue JS_RunMachTree (JSContext *ctx, struct cJSON *ast, JSValue env);
-
-/* Compile and execute MACH bytecode from AST JSON string. */
-JSValue JS_RunMach (JSContext *ctx, const char *ast_json, JSValue env);
-
 /* Deserialize and execute pre-compiled MACH binary bytecode. */
 JSValue JS_RunMachBin(JSContext *ctx, const uint8_t *data, size_t size, JSValue env);
 
 /* Compile mcode JSON IR to MachCode binary. */
 MachCode *mach_compile_mcode(struct cJSON *mcode_json);
 
-/* Execute MCODE from cJSON tree. Takes ownership of root. */
-JSValue JS_CallMcodeTree (JSContext *ctx, struct cJSON *root);
-
-/* Execute MCODE from cJSON tree with hidden env. Takes ownership of root. */
-JSValue JS_CallMcodeTreeEnv (JSContext *ctx, struct cJSON *root, JSValue env);
-
-/* Parse and execute MCODE JSON string.
-   Returns result of execution, or JS_EXCEPTION on error. */
-JSValue JS_CallMcode (JSContext *ctx, const char *mcode_json);
-
 /* Get stack trace as cJSON array of frame objects.
    Returns NULL if no register VM frame is active.
    Caller must call cJSON_Delete() on the result. */

source/runtime.c

@@ -1139,10 +1139,6 @@ void gc_scan_object (JSContext *ctx, void *ptr, uint8_t *from_base, uint8_t *fro
           nested->name = gc_copy_value (ctx, nested->name, from_base, from_end, to_base, to_free, to_end);
         }
       }
-    } else if (fn->kind == JS_FUNC_KIND_MCODE) {
-      /* MCODE function - scan outer_frame and env_record */
-      fn->u.mcode.outer_frame = gc_copy_value (ctx, fn->u.mcode.outer_frame, from_base, from_end, to_base, to_free, to_end);
-      fn->u.mcode.env_record = gc_copy_value (ctx, fn->u.mcode.env_record, from_base, from_end, to_base, to_free, to_end);
     }
     break;
   }
@@ -4630,8 +4626,6 @@ JSValue JS_CallInternal (JSContext *ctx, JSValue func_obj, JSValue this_obj,
   case JS_FUNC_KIND_REGISTER:
     return JS_CallRegisterVM (ctx, f->u.reg.code, this_obj, argc, argv,
                               f->u.reg.env_record, f->u.reg.outer_frame);
-  case JS_FUNC_KIND_MCODE:
-    return mcode_exec (ctx, f->u.mcode.code, this_obj, argc, argv, f->u.mcode.outer_frame);
   default:
     return JS_ThrowTypeError (ctx, "not a function");
   }
@@ -4653,8 +4647,6 @@ JSValue JS_Call (JSContext *ctx, JSValue func_obj, JSValue this_obj, int argc, J
   case JS_FUNC_KIND_REGISTER:
     return JS_CallRegisterVM (ctx, f->u.reg.code, this_obj, argc, argv,
                               f->u.reg.env_record, f->u.reg.outer_frame);
-  case JS_FUNC_KIND_MCODE:
-    return mcode_exec (ctx, f->u.mcode.code, this_obj, argc, argv, f->u.mcode.outer_frame);
   default:
     return JS_ThrowTypeError (ctx, "not a function");
   }
@@ -10117,83 +10109,6 @@ int js_is_blob (JSContext *js, JSValue v) {
  * ============================================================================
  */
 
-/* mach_eval_ast(name, ast_json, env?) - compile pre-parsed AST and run */
-static JSValue js_mach_eval_ast (JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
-  if (argc < 2 || !JS_IsText (argv[0]) || !JS_IsText (argv[1]))
-    return JS_ThrowTypeError (ctx, "mach_eval_ast requires (name, ast_json) text arguments");
-
-  const char *name = JS_ToCString (ctx, argv[0]);
-  if (!name) return JS_EXCEPTION;
-
-  const char *json_str = JS_ToCString (ctx, argv[1]);
-  if (!json_str) {
-    JS_FreeCString (ctx, name);
-    return JS_EXCEPTION;
-  }
-
-  cJSON *ast = cJSON_Parse (json_str);
-  JS_FreeCString (ctx, json_str);
-
-  if (!ast) {
-    JS_FreeCString (ctx, name);
-    return JS_ThrowSyntaxError (ctx, "mach_eval_ast: failed to parse AST JSON");
-  }
-
-  /* Set the filename on the AST root */
-  cJSON_DeleteItemFromObjectCaseSensitive (ast, "filename");
-  cJSON_AddStringToObject (ast, "filename", name);
-
-  JSValue env = (argc >= 3 && JS_IsObject (argv[2])) ? argv[2] : JS_NULL;
-  JSValue result = JS_RunMachTree (ctx, ast, env);
-  cJSON_Delete (ast);
-  JS_FreeCString (ctx, name);
-  return result;
-}
-
-/* mach_compile_ast(name, ast_json) - compile pre-parsed AST to binary blob */
-static JSValue js_mach_compile_ast (JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
-  if (argc < 2 || !JS_IsText (argv[0]) || !JS_IsText (argv[1]))
-    return JS_ThrowTypeError (ctx, "mach_compile_ast requires (name, ast_json) text arguments");
-
-  const char *name = JS_ToCString (ctx, argv[0]);
-  if (!name) return JS_EXCEPTION;
-
-  const char *json_str = JS_ToCString (ctx, argv[1]);
-  if (!json_str) {
-    JS_FreeCString (ctx, name);
-    return JS_EXCEPTION;
-  }
-
-  cJSON *ast = cJSON_Parse (json_str);
-  JS_FreeCString (ctx, json_str);
-
-  if (!ast) {
-    JS_FreeCString (ctx, name);
-    return JS_ThrowSyntaxError (ctx, "mach_compile_ast: failed to parse AST JSON");
-  }
-
-  cJSON_DeleteItemFromObjectCaseSensitive (ast, "filename");
-  cJSON_AddStringToObject (ast, "filename", name);
-
-  MachCode *mc = JS_CompileMachTree (ast);
-  cJSON_Delete (ast);
-  JS_FreeCString (ctx, name);
-
-  if (!mc)
-    return JS_ThrowSyntaxError (ctx, "mach_compile_ast: failed to compile AST");
-
-  size_t blob_size;
-  uint8_t *buf = JS_SerializeMachCode (mc, &blob_size);
-  JS_FreeMachCode (mc);
-
-  if (!buf)
-    return JS_ThrowInternalError (ctx, "mach_compile_ast: serialization failed");
-
-  JSValue result = js_new_blob_stoned_copy (ctx, buf, blob_size);
-  sys_free (buf);
-  return result;
-}
-
 /* mach_load(blob, env?) - deserialize and execute binary blob */
 static JSValue js_mach_load (JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
   if (argc < 1)
@@ -10207,6 +10122,11 @@ static JSValue js_mach_load (JSContext *ctx, JSValue this_val, int argc, JSValue
   if (!mc)
     return JS_ThrowSyntaxError (ctx, "mach_load: failed to deserialize bytecode");
 
+  {
+    extern void verify_getup(MachCode *mc, const char *path);
+    verify_getup(mc, "MACH_LOAD");
+  }
+
   JSValue env = (argc >= 2 && JS_IsObject (argv[1])) ? argv[1] : JS_NULL;
 
   JSGCRef env_ref;
@@ -10220,35 +10140,6 @@ static JSValue js_mach_load (JSContext *ctx, JSValue this_val, int argc, JSValue
   return result;
 }
 
-/* mcode_run(name, mcode_json, env?) - run pre-compiled mcode JSON */
-static JSValue js_mcode_run (JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
-  if (argc < 2 || !JS_IsText (argv[0]) || !JS_IsText (argv[1]))
-    return JS_ThrowTypeError (ctx, "mcode_run requires (name, mcode_json) text arguments");
-
-  const char *name = JS_ToCString (ctx, argv[0]);
-  if (!name) return JS_EXCEPTION;
-
-  const char *json_str = JS_ToCString (ctx, argv[1]);
-  if (!json_str) {
-    JS_FreeCString (ctx, name);
-    return JS_EXCEPTION;
-  }
-
-  cJSON *mcode = cJSON_Parse (json_str);
-  JS_FreeCString (ctx, json_str);
-
-  if (!mcode) {
-    JS_FreeCString (ctx, name);
-    return JS_ThrowSyntaxError (ctx, "mcode_run: failed to parse mcode JSON");
-  }
-
-  JSValue env = (argc >= 3 && JS_IsObject (argv[2])) ? argv[2] : JS_NULL;
-  JSValue result = JS_CallMcodeTreeEnv (ctx, mcode, env);
-  /* mcode tree ownership transferred to JS_CallMcodeTreeEnv — do not free */
-  JS_FreeCString (ctx, name);
-  return result;
-}
-
 /* mach_eval_mcode(name, mcode_json, env?) - compile mcode IR and run via register VM */
 static JSValue js_mach_eval_mcode (JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
   if (argc < 2 || !JS_IsText (argv[0]) || !JS_IsText (argv[1]))
@@ -10298,6 +10189,61 @@ static JSValue js_mach_eval_mcode (JSContext *ctx, JSValue this_val, int argc, J
   return result;
 }
 
+/* mach_compile_mcode_bin(name, mcode_json) - compile mcode IR to serialized binary blob */
+static JSValue js_mach_compile_mcode_bin (JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
+  if (argc < 2 || !JS_IsText (argv[0]) || !JS_IsText (argv[1]))
+    return JS_ThrowTypeError (ctx, "mach_compile_mcode_bin requires (name, mcode_json) text arguments");
+
+  const char *name = JS_ToCString (ctx, argv[0]);
+  if (!name) return JS_EXCEPTION;
+
+  const char *json_str = JS_ToCString (ctx, argv[1]);
+  if (!json_str) {
+    JS_FreeCString (ctx, name);
+    return JS_EXCEPTION;
+  }
+
+  cJSON *mcode = cJSON_Parse (json_str);
+  JS_FreeCString (ctx, json_str);
+
+  if (!mcode) {
+    JS_FreeCString (ctx, name);
+    return JS_ThrowSyntaxError (ctx, "mach_compile_mcode_bin: failed to parse mcode JSON");
+  }
+
+  if (!cJSON_GetObjectItemCaseSensitive (mcode, "filename"))
+    cJSON_AddStringToObject (mcode, "filename", name);
+
+  MachCode *mc = mach_compile_mcode (mcode);
+  cJSON_Delete (mcode);
+  JS_FreeCString (ctx, name);
+
+  if (!mc)
+    return JS_ThrowInternalError (ctx, "mach_compile_mcode_bin: compilation failed");
+
+  size_t size = 0;
+  uint8_t *data = JS_SerializeMachCode (mc, &size);
+
+  /* DEBUG: verify round-trip */
+  {
+    MachCode *mc2 = JS_DeserializeMachCode (data, size);
+    if (mc2) {
+      extern void verify_getup(MachCode *mc, const char *path);
+      verify_getup(mc2, "ROUNDTRIP");
+      JS_FreeMachCode (mc2);
+    }
+  }
+
+  JS_FreeMachCode (mc);
+
+  if (!data)
+    return JS_ThrowInternalError (ctx, "mach_compile_mcode_bin: serialization failed");
+
+  JSValue blob = js_new_blob_stoned_copy (ctx, data, size);
+  sys_free (data);
+  return blob;
+}
+
 /* ============================================================================
  * stone() function - deep freeze with blob support
  * ============================================================================
@@ -11398,11 +11344,9 @@ static void JS_AddIntrinsicBaseObjects (JSContext *ctx) {
     }
 
     /* Core functions - using GC-safe helper */
-    js_set_global_cfunc(ctx, "mach_eval_ast", js_mach_eval_ast, 3);
-    js_set_global_cfunc(ctx, "mcode_run", js_mcode_run, 3);
-    js_set_global_cfunc(ctx, "mach_compile_ast", js_mach_compile_ast, 2);
     js_set_global_cfunc(ctx, "mach_load", js_mach_load, 2);
     js_set_global_cfunc(ctx, "mach_eval_mcode", js_mach_eval_mcode, 3);
+    js_set_global_cfunc(ctx, "mach_compile_mcode_bin", js_mach_compile_mcode_bin, 2);
     js_set_global_cfunc(ctx, "stone", js_cell_stone, 1);
     js_set_global_cfunc(ctx, "length", js_cell_length, 1);
     js_set_global_cfunc(ctx, "call", js_cell_call, 3);
@@ -13150,17 +13094,6 @@ cJSON *JS_GetStack(JSContext *ctx) {
         line = code->line_table[pc].line;
         col = code->line_table[pc].col;
       }
-    } else if (fn->kind == JS_FUNC_KIND_MCODE && fn->u.mcode.code) {
-      JSMCode *code = fn->u.mcode.code;
-      file = code->filename;
-      func_name = code->name;
-      if (!is_first) {
-        pc = (uint32_t)(JS_VALUE_GET_INT(frame->address) >> 16);
-      }
-      if (code->line_table && pc < code->instr_count) {
-        line = code->line_table[pc].line;
-        col = code->line_table[pc].col;
-      }
     }
 
     cJSON *entry = cJSON_CreateObject();