specify wasm vm stack size (64KB)

build.bat

@@ -33,30 +33,30 @@ if %target% == orca (
 	copy milepost\bin\milepost.dll.lib bin
 
 	::generate wasm3 api bindings
-	python3 scripts\bindgen.py core src\core_api.json^
+	python3 scripts\bindgen_bb.py core src\core_api.json^
 			--wasm3-bindings src\core_api_bind_gen.c
 
-	python3 scripts\bindgen.py gles src\gles_api.json^
+	python3 scripts\bindgen_bb.py gles src\gles_api.json^
 			--wasm3-bindings src\gles_api_bind_gen.c
 
-	python3 scripts\bindgen.py canvas src\canvas_api.json^
+	python3 scripts\bindgen_bb.py canvas src\canvas_api.json^
 	        --guest-stubs sdk\orca_surface.c^
 	        --guest-include graphics.h^
 	        --wasm3-bindings src\canvas_api_bind_gen.c
 
-	python3 scripts\bindgen.py clock src\clock_api.json^
+	python3 scripts\bindgen_bb.py clock src\clock_api.json^
 	        --guest-stubs sdk\orca_clock.c^
 	        --guest-include platform_clock.h^
 	        --wasm3-bindings src\clock_api_bind_gen.c
 
-	python3 scripts\bindgen.py io^
+	python3 scripts\bindgen_bb.py io^
 	        src\io_api.json^
 	        --guest-stubs sdk\io_stubs.c^
 	        --wasm3-bindings src\io_api_bind_gen.c
 
 	::compile orca
-	set INCLUDES=/I src /I sdk /I ext\wasm3\source /I milepost\src /I milepost\ext
-	set LIBS=/LIBPATH:bin milepost.dll.lib wasm3.lib
+	set INCLUDES=/I src /I sdk /I ext\bytebox\include /I milepost\src /I milepost\ext
+	set LIBS=/LIBPATH:bin milepost.dll.lib ext\bytebox\lib\bytebox.lib ntdll.lib
 
-	cl /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% src\main.c /link %LIBS% /out:bin\orca.exe
+	cl /Zi /Zc:preprocessor /std:c11 /experimental:c11atomics %INCLUDES% src\main.c /link %LIBS% /STACK:8388608,8388608 /out:bin\orca.exe
 )

ext/bytebox/include/bytebox.h

@@ -0,0 +1,170 @@
+// C interface for bytebox wasm runtime.
+
+#include <stdint.h>
+#include <stdbool.h>
+
+struct bb_slice
+{
+	char* data;
+	size_t length;
+};
+typedef struct bb_slice bb_slice;
+
+enum bb_error
+{
+	BB_ERROR_OK,
+	BB_ERROR_FAILED,
+	BB_ERROR_OUTOFMEMORY,
+	BB_ERROR_INVALIDPARAM,
+	BB_ERROR_UNKNOWNEXPORT,
+    BB_ERROR_UNKNOWNIMPORT,
+    BB_ERROR_INCOMPATIBLEIMPORT,
+    BB_ERROR_TRAP_DEBUG,
+    BB_ERROR_TRAP_UNREACHABLE,
+    BB_ERROR_TRAP_INTEGERDIVISIONBYZERO,
+    BB_ERROR_TRAP_INTEGEROVERFLOW,
+    BB_ERROR_TRAP_INDIRECTCALLTYPEMISMATCH,
+    BB_ERROR_TRAP_INVALIDINTEGERCONVERSION,
+    BB_ERROR_TRAP_OUTOFBOUNDSMEMORYACCESS,
+    BB_ERROR_TRAP_UNDEFINEDELEMENT,
+    BB_ERROR_TRAP_UNINITIALIZEDELEMENT,
+    BB_ERROR_TRAP_OUTOFBOUNDSTABLEACCESS,
+    BB_ERROR_TRAP_STACKEXHAUSTED,
+};
+typedef enum bb_error bb_error;
+
+enum bb_valtype
+{
+    BB_VALTYPE_I32,
+    BB_VALTYPE_I64,
+    BB_VALTYPE_F32,
+    BB_VALTYPE_F64,
+};
+typedef enum bb_valtype bb_valtype;
+
+typedef float bb_v128[4];
+union bb_val
+{
+	int32_t i32_val;
+	int64_t i64_val;
+	float f32_val;
+	double f64_val;
+	bb_v128 v128_val;
+	uint32_t externref_val;
+};
+typedef union bb_val bb_val;
+
+struct bb_module_definition_init_opts
+{
+	const char* debug_name;
+};
+typedef struct bb_module_definition_init_opts bb_module_definition_init_opts;
+
+typedef struct bb_module_definition bb_module_definition;
+typedef struct bb_module_instance bb_module_instance;
+typedef struct bb_import_package bb_import_package;
+
+typedef void bb_host_function(void* userdata, bb_module_instance* module, const bb_val* params, bb_val* returns);
+typedef void* bb_wasm_memory_resize(void* mem, size_t new_size_bytes, size_t old_size_bytes, void* userdata);
+typedef void bb_wasm_memory_free(void* mem, size_t size_bytes, void* userdata);
+
+struct bb_module_instance_instantiate_opts
+{
+	bb_import_package** packages;
+	size_t num_packages;
+	struct {
+		bb_wasm_memory_resize* resize_callback;
+		bb_wasm_memory_free* free_callback;
+		void* userdata;
+	} wasm_memory_config;
+	size_t stack_size;
+	bool enable_debug;
+};
+typedef struct bb_module_instance_instantiate_opts bb_module_instance_instantiate_opts;
+
+struct bb_module_instance_invoke_opts
+{
+	bool trap_on_start;
+};
+typedef struct bb_module_instance_invoke_opts bb_module_instance_invoke_opts;
+
+struct bb_func_handle
+{
+	uint32_t index;
+	uint32_t type;
+};
+typedef struct bb_func_handle bb_func_handle;
+
+struct bb_func_info
+{
+	bb_valtype* params;
+	size_t num_params;
+	bb_valtype* returns;
+	size_t num_returns;
+};
+typedef struct bb_func_info bb_func_info;
+
+enum bb_global_mut
+{
+	BB_GLOBAL_MUT_IMMUTABLE,
+	BB_GLOBAL_MUT_MUTABLE,
+};
+typedef enum bb_global_mut bb_global_mut;
+
+struct bb_global
+{
+	bb_val* value;
+	bb_valtype type;
+	bb_global_mut mut;
+};
+typedef struct bb_global bb_global;
+
+enum bb_debug_trace_mode
+{
+	BB_DEBUG_TRACE_NONE,
+	BB_DEBUG_TRACE_FUNCTION,
+	BB_DEBUG_TRACE_INSTRUCTION,
+};
+typedef enum bb_debug_trace_mode bb_debug_trace_mode;
+
+enum bb_debug_trap_mode
+{
+	BB_DEBUG_TRAP_MODE_DISABLED,
+	BB_DEBUG_TRAP_MODE_ENABLED,
+};
+typedef enum bb_debug_trap_mode bb_debug_trap_mode;
+
+// typedef void* bb_malloc_func(size_t size, void* userdata);
+// typedef void* bb_realloc_func(void* mem, size_t size, void* userdata);
+// typedef void bb_free_func(void* mem, void* userdata);
+
+// void bb_set_memory_hooks(bb_alloc_func* alloc_func, bb_realloc_func* realloc_func, bb_free_func);
+
+const char* bb_error_str(bb_error err);
+
+bb_module_definition* bb_module_definition_init(bb_module_definition_init_opts opts);
+void bb_module_definition_deinit(bb_module_definition* definition);
+bb_error bb_module_definition_decode(bb_module_definition* definition, const char* data, size_t length);
+bb_slice bb_module_definition_get_custom_section(const bb_module_definition* definition, const char* name);
+
+bb_import_package* bb_import_package_init(const char* name);
+void bb_import_package_deinit(bb_import_package* package); // only deinit when all module_instances using the package have been deinited
+bb_error bb_import_package_add_function(bb_import_package* package, bb_host_function* func, const char* export_name, bb_valtype* params, size_t num_params, bb_valtype* returns, size_t num_returns, void* userdata);
+
+void bb_set_debug_trace_mode(bb_debug_trace_mode mode);
+
+bb_module_instance* bb_module_instance_init(bb_module_definition* definition);
+void bb_module_instance_deinit(bb_module_instance* instance);
+bb_error bb_module_instance_instantiate(bb_module_instance* instance, bb_module_instance_instantiate_opts opts);
+bb_error bb_module_instance_find_func(bb_module_instance* instance, const char* func_name, bb_func_handle* out_handle);
+bb_func_info bb_module_instance_func_info(bb_module_instance* instance, bb_func_handle handle);
+bb_error bb_module_instance_invoke(bb_module_instance* instance, bb_func_handle, const bb_val* params, size_t num_params, bb_val* returns, size_t num_returns, bb_module_instance_invoke_opts opts);
+bb_error bb_module_instance_resume(bb_module_instance* instance, bb_val* returns, size_t num_returns);
+bb_error bb_module_instance_step(bb_module_instance* instance, bb_val* returns, size_t num_returns);
+bb_error bb_module_instance_debug_set_trap(bb_module_instance* instance, uint32_t address, bb_debug_trap_mode trap_mode);
+void* bb_module_instance_mem(bb_module_instance* instance, size_t offset, size_t length);
+bb_slice bb_module_instance_mem_all(bb_module_instance* instance);
+bb_error bb_module_instance_mem_grow(bb_module_instance* instance, size_t num_pages);
+bb_global bb_module_instance_find_global(bb_module_instance* instance, const char* global_name);
+
+bool bb_func_handle_isvalid(bb_func_handle handle);

ext/bytebox/update.cmd

@@ -0,0 +1,4 @@
+@mkdir include 2> nul
+@mkdir lib 2> nul
+cp E:\Dev\zig_projects\bytebox\zig-out\include\bytebox.h include\bytebox.h
+cp E:\Dev\zig_projects\bytebox\zig-out\lib\bytebox.lib lib\bytebox.lib

samples/pong/src/main.c

@@ -78,15 +78,15 @@ ORCA_EXPORT void OnInit(void)
 
     if(mg_image_is_nil(waterImage))
     {
-		log_error("coulnd't load ball image\n");
+		log_error("couldn't load water image\n");
     }
     if(mg_image_is_nil(ballImage))
     {
-		log_error("coulnd't load ball image\n");
+		log_error("couldn't load ball image\n");
     }
     if(mg_image_is_nil(paddleImage))
     {
-		log_error("coulnd't load paddle image\n");
+		log_error("couldn't load paddle image\n");
     }
 
     str8 fontStr = loadFile(mem_scratch(), STR8("/Literata-SemiBoldItalic.ttf"));

scripts/bindgen_bb.py

@@ -0,0 +1,232 @@
+#!/usr/bin/env python3
+
+from argparse import ArgumentParser
+import json
+
+
+parser = ArgumentParser(prog='bindgen.py')
+parser.add_argument('api')
+parser.add_argument('spec')
+parser.add_argument('-g', '--guest-stubs')
+parser.add_argument('--guest-include')
+parser.add_argument('--wasm3-bindings')
+
+args = parser.parse_args()
+
+apiName = args.api
+spec = args.spec
+guest_stubs_path = args.guest_stubs
+if guest_stubs_path == None:
+	guest_stubs_path = 'bindgen_' + apiName + '_guest_stubs.c'
+
+wasm3_bindings_path = args.wasm3_bindings
+if wasm3_bindings_path == None:
+	wasm3_bindings_path = 'bindgen_' + apiName + '_wasm3_bindings.c'
+
+host_bindings = open(wasm3_bindings_path, 'w')
+guest_bindings = None
+
+specFile = open(spec, 'r')
+data = json.load(specFile)
+
+def needs_arg_ptr_stub(decl):
+	res = (decl['ret']['tag'] == 'S')
+	for arg in decl['args']:
+		if arg['type']['tag'] == 'S':
+			res = True
+	return(res)
+
+for decl in data:
+	if needs_arg_ptr_stub(decl):
+		guest_bindings = open(guest_stubs_path, 'w')
+		if args.guest_include != None:
+			s = '#include"' + args.guest_include + '"\n\n'
+			print(s, file=guest_bindings)
+		break
+
+for decl in data:
+
+	name = decl['name']
+	cname = decl.get('cname', name)
+
+	if needs_arg_ptr_stub(decl):
+		argPtrStubName = name + '_argptr_stub'
+		# pointer arg stub declaration
+		s = ''
+		if decl['ret']['tag'] == 'S':
+			s += 'void'
+		else:
+			s += decl['ret']['name']
+
+		s += ' ORCA_IMPORT(' + argPtrStubName + ') ('
+
+		if decl['ret']['tag'] == 'S':
+			s += decl['ret']['name'] + '* __retArg'
+			if len(decl['args']) > 0:
+				s += ', '
+
+		for i, arg in enumerate(decl['args']):
+			s += arg['type']['name']
+			if arg['type']['tag'] == 'S':
+				s += '*'
+			s += ' ' + arg['name']
+			if i+1 < len(decl['args']):
+				s += ', '
+		s += ');\n\n'
+
+		# forward function to pointer arg stub declaration
+		s += decl['ret']['name'] + ' ' + name + '('
+		for i, arg in enumerate(decl['args']):
+			s += arg['type']['name'] + ' ' + arg['name']
+			if i+1 < len(decl['args']):
+				s += ', '
+		s += ')\n'
+		s += '{\n'
+		s += '\t'
+		if decl['ret']['tag'] == 'S':
+			s += decl['ret']['name'] + ' __ret;\n\t'
+		elif decl['ret']['tag'] != 'v':
+			s += decl['ret']['name']
+			s += ' __ret = '
+		s += argPtrStubName + '('
+
+		if decl['ret']['tag'] == 'S':
+			s += '&__ret'
+			if len(decl['args']) > 0:
+				s += ', '
+
+		for i, arg in enumerate(decl['args']):
+			if arg['type']['tag'] == 'S':
+				s += '&'
+
+			s += arg['name']
+			if i+1 < len(decl['args']):
+				s += ', '
+		s += ');\n'
+		if decl['ret']['tag'] != 'v':
+			s += '\treturn(__ret);\n'
+		s += '}\n\n'
+
+		print(s, file=guest_bindings)
+
+	# host-side stub
+	s = 'void ' + cname + '_stub(void* userdata, bb_module_instance* module, const bb_val* params, bb_val* returns)'
+
+	gen_stub = decl.get('gen_stub', True)
+	if gen_stub == False:
+		s += ';\n\n'
+	else:
+		s += '\n{\n\t'
+		retTag = decl['ret']['tag']
+
+		firstArgIndex = 0
+		if retTag == 'i':
+			s += 'returns[0].i32_val = '
+		elif retTag == 'I':
+			s += 'returns[0].i64_val = '
+		elif retTag == 'f':
+			s += 'returns[0].f32_val = '
+		elif retTag == 'F':
+			s += 'returns[0].f64_val = '
+		elif retTag == 'S':
+			retTypeName = decl['ret']['name']
+			retTypeCName = decl['ret'].get('cname', retTypeName)
+			s += '*(' + retTypeCName + '*)(bb_module_instance_mem(module, params[0].i32_val, sizeof(' + retTypeCName + '))) = '
+			firstArgIndex = 1
+
+		s += cname + '('
+
+		for i, arg in enumerate(decl['args']):
+			typeName = arg['type']['name']
+			typeCName = arg['type'].get('cname', typeName)
+			argTag = arg['type']['tag']
+			if argTag == 'i':
+				s += 'params[' + str(firstArgIndex + i) + '].i32_val'
+			elif argTag == 'I':
+				s += 'params[' + str(firstArgIndex + i) + '].i64_val'
+			elif argTag == 'f':
+				s += 'params[' + str(firstArgIndex + i) + '].f32_val'
+			elif argTag == 'F':
+				s += 'params[' + str(firstArgIndex + i) + '].f64_val'
+			elif argTag == 'p':
+				s += 'bb_module_instance_mem(module, params[' + str(firstArgIndex + i) + '].i32_val, sizeof(1))'
+			elif argTag == 'S':
+				s += '*(' + typeCName + '*)bb_module_instance_mem(module, params[' + str(firstArgIndex + i) + '].i32_val, sizeof(' + typeCName + '))'
+			else:
+				print('unrecognized type ' + typeCName + ' in procedure signature\n')
+				break
+
+			if i+1 < len(decl['args']):
+				s += ', '
+
+		s += ');\n}\n'
+
+	print(s, file=host_bindings)
+
+# link function
+s = 'int bindgen_link_' + apiName + '_api(bb_import_package* package)\n{\n'
+
+def translateTag(tag):
+	if tag == 'i' or tag == 'p':
+		return 'BB_VALTYPE_I32'
+	elif tag == 'I':
+		return 'BB_VALTYPE_I64'
+	elif tag == 'f':
+		return 'BB_VALTYPE_F32'
+	elif tag == 'F':
+		return 'BB_VALTYPE_F64'
+	elif tag == 'v':
+		return ''
+	print('translateTag: unhandled tag "' + tag + '" with type ')
+	print(type(tag))
+	print('\n')
+	return ''
+
+for decl in data:
+	name = decl['name']
+	cname = decl.get('cname', name)
+
+	if needs_arg_ptr_stub(decl):
+		name = name + '_argptr_stub'
+
+	retTag = decl['ret']['tag']
+
+	retType = ''
+	numReturns = 0
+	paramTypes = []
+	numParams = 0
+	if retTag == 'S':
+		paramTypes.append('BB_VALTYPE_I32')
+		numParams += 1
+	elif retTag != 'v': #no returns
+		retType = translateTag(retTag)
+		numReturns = 1
+		
+	for arg in decl['args']:
+		tag = arg['type']['tag']
+		if tag == 'p' or tag == 'S':
+			tag = 'i'
+		paramTypes.append(translateTag(tag))
+		numParams += 1
+
+	# dummy values
+	if numReturns == 0:
+		retType = 'BB_VALTYPE_I32'
+
+	if numParams == 0:
+		paramTypes.append('BB_VALTYPE_I32')
+
+	s += '\t{\n'
+	s += '\t\tbb_valtype params[] = {' + ', '.join(paramTypes) + '};\n'
+	s += '\t\tsize_t num_params = ' + str(len(paramTypes)) + ';\n'
+	s += '\t\tbb_valtype return_type = ' + retType + ';\n'
+	s += '\t\tsize_t num_returns = ' + str(numReturns) + ';\n'
+
+	s += '\t\tbb_error err = bb_import_package_add_function(package, ' + cname + '_stub, "' + name + '", params, num_params, &return_type, num_returns, NULL);\n'
+	s += '\t\tif(err != BB_ERROR_OK) { log_error("error: %s\\n", bb_error_str(err)); return(-1); }\n'
+	s += '\t}\n'
+
+
+s += '\treturn(0);\n}\n'
+
+print(s, file=host_bindings)

src/canvas_api_bind.c

@@ -6,16 +6,16 @@ typedef struct wasm_str8
 	i32 offset;
 } wasm_str8;
 
-const void* mg_text_outlines_stub(IM3Runtime runtime, IM3ImportContext _ctx, uint64_t* _sp, void* _mem)
+const void* mg_text_outlines_stub(void* userdata, bb_module_instance* module, const bb_val* params, bb_val* returns)
 {
-	wasm_str8 wasmStr = *(wasm_str8*)((char*)_mem + *(i32*)&_sp[0]);
+	wasm_str8 wasmStr = *(wasm_str8*)bb_module_instance_mem(module, params[0].i32_val, sizeof(wasm_str8));
 
-	/////////////////////////////////////////////////////////////////////
-	//TODO: bound checks
 	str8 str = {.len = wasmStr.len,
-	            .ptr = (char*)_mem + wasmStr.offset};
-	/////////////////////////////////////////////////////////////////////
+	            .ptr = (char*)bb_module_instance_mem(module, wasmStr.offset, wasmStr.len)};
 
-	mg_text_outlines(str);
+	if(str.ptr)
+	{
+		mg_text_outlines(str);
+	}
 	return(0);
 }

src/io_impl.c

@@ -18,16 +18,17 @@ io_cmp orca_io_wait_single_req(io_req* wasmReq)
 	//NOTE: convert the req->buffer wasm pointer to a native pointer
 	//		for some reason, wasm3 memory doesn't start at the beginning of the block we give it.
 	u64 bufferIndex = (u64)req.buffer & 0xffffffff;
-	u32 memSize = 0;
-	char* memory = (char*)m3_GetMemory(orca->runtime.m3Runtime, &memSize, 0);
+	// u32 memSize = 0;
+	// char* memory = (char*)m3_GetMemory(orca->runtime.m3Runtime, &memSize, 0);
+	bb_slice memory = bb_module_instance_mem_all(orca->runtime.bbModuleInst);
 
-	if(bufferIndex + req.size > memSize)
+	if(bufferIndex + req.size > memory.length)
 	{
 		cmp.error = IO_ERR_ARG;
 	}
 	else
 	{
-		req.buffer = memory + bufferIndex;
+		req.buffer = memory.data + bufferIndex;
 
 		if(req.op == IO_OP_OPEN_AT)
 		{

src/main.c

@@ -267,25 +267,39 @@ void log_entry_ui(orca_debug_overlay* overlay, log_entry* entry)
 }
 
 
-char m3_type_to_tag(M3ValueType type)
-{
-	switch(type)
-	{
-		case c_m3Type_none:
-			return('v');
-		case c_m3Type_i32:
-			return('i');
-		case c_m3Type_i64:
-			return('I');
-		case c_m3Type_f32:
-			return('f');
-		case c_m3Type_f64:
-			return('d');
+// char m3_type_to_tag(M3ValueType type)
+// {
+// 	switch(type)
+// 	{
+// 		case c_m3Type_none:
+// 			return('v');
+// 		case c_m3Type_i32:
+// 			return('i');
+// 		case c_m3Type_i64:
+// 			return('I');
+// 		case c_m3Type_f32:
+// 			return('f');
+// 		case c_m3Type_f64:
+// 			return('d');
 
-		case c_m3Type_unknown:
-		default:
-			return('!');
+// 		case c_m3Type_unknown:
+// 		default:
+// 			return('!');
+// 	}
+// }
+
+bool tag_to_valtype(char tag, bb_valtype* out)
+{
+	switch (tag)
+	{
+	case 'i': *out = BB_VALTYPE_I32; return true;
+	case 'I': *out = BB_VALTYPE_I64; return true;
+	case 'f': *out = BB_VALTYPE_F32; return true;
+	case 'F': *out = BB_VALTYPE_F64; return true;
+	case 'd': *out = BB_VALTYPE_F64; return true;
 	}
+
+	return false;
 }
 
 void orca_runtime_init(orca_runtime* runtime)
@@ -305,6 +319,23 @@ void orca_runtime_init(orca_runtime* runtime)
 #include"gles_api_bind_gen.c"
 #include"manual_gles_api.c"
 
+i32 quit_on_wasm_init_failure(const char* stage, bb_error err)
+{
+	const char* errStr = bb_error_str(err);
+	log_error("wasm error at init stage '%s': %s\n", stage, errStr);
+
+	str8 msg = str8_pushf(mem_scratch(), "The application couldn't load: encountered fatal error at stage '%s': %s", stage, errStr);
+
+	const char* options[] = {"OK"};
+	mp_alert_popup("Error",
+	               msg.ptr,
+	               1,
+	               options);
+
+	mp_request_quit();
+	return(-1);
+}
+
 i32 orca_runloop(void* user)
 {
 	orca_app* app = &__orcaApp;
@@ -339,96 +370,147 @@ i32 orca_runloop(void* user)
 	fread(app->runtime.wasmBytecode.ptr, 1, app->runtime.wasmBytecode.len, file);
 	fclose(file);
 
-	u32 stackSize = 65536;
-	app->runtime.m3Env = m3_NewEnvironment();
+	bb_error wasm_init_err;
+	bb_module_definition_init_opts module_def_init_opts = { .debug_name = bundleNameCString };
+	app->runtime.bbModuleDef = bb_module_definition_init(module_def_init_opts);
+	wasm_init_err = bb_module_definition_decode(app->runtime.bbModuleDef, app->runtime.wasmBytecode.ptr, app->runtime.wasmBytecode.len);
+	if (wasm_init_err != BB_ERROR_OK)
+	{
+		return quit_on_wasm_init_failure("wasm decode", wasm_init_err);
+	}
 
-	app->runtime.m3Runtime = m3_NewRuntime(app->runtime.m3Env, stackSize, NULL);
-	m3_RuntimeSetMemoryCallbacks(app->runtime.m3Runtime, wasm_memory_resize_callback, wasm_memory_free_callback, &app->runtime.wasmMemory);
+	// u32 stackSize = 65536;
+	// app->runtime.m3Env = m3_NewEnvironment();
+
+	// app->runtime.m3Runtime = m3_NewRuntime(app->runtime.m3Env, stackSize, NULL);
+	// m3_RuntimeSetMemoryCallbacks(app->runtime.m3Runtime, wasm_memory_resize_callback, wasm_memory_free_callback, &app->runtime.wasmMemory);
 	//NOTE: host memory will be freed when runtime is freed.
 
 	//TODO check errors
-	m3_ParseModule(app->runtime.m3Env, &app->runtime.m3Module, (u8*)app->runtime.wasmBytecode.ptr, app->runtime.wasmBytecode.len);
-	m3_LoadModule(app->runtime.m3Runtime, app->runtime.m3Module);
-	m3_SetModuleName(app->runtime.m3Module, bundleNameCString);
+	// m3_ParseModule(app->runtime.m3Env, &app->runtime.m3Module, (u8*)app->runtime.wasmBytecode.ptr, app->runtime.wasmBytecode.len);
+	// m3_LoadModule(app->runtime.m3Runtime, app->runtime.m3Module);
+	// m3_SetModuleName(app->runtime.m3Module, bundleNameCString);
 
 	mem_arena_clear(mem_scratch());
 
 	//NOTE: bind orca APIs
-	bindgen_link_core_api(app->runtime.m3Module);
-	bindgen_link_canvas_api(app->runtime.m3Module);
-	bindgen_link_clock_api(app->runtime.m3Module);
-	bindgen_link_io_api(app->runtime.m3Module);
-	bindgen_link_gles_api(app->runtime.m3Module);
-	manual_link_gles_api(app->runtime.m3Module);
+	bb_import_package* module_imports = bb_import_package_init("*");
+	bindgen_link_core_api(module_imports);
+	bindgen_link_canvas_api(module_imports);
+	bindgen_link_clock_api(module_imports);
+	bindgen_link_io_api(module_imports);
+	bindgen_link_gles_api(module_imports);
+	manual_link_gles_api(module_imports);
 
 	//NOTE: compile
-	M3Result res = m3_CompileModule(app->runtime.m3Module);
-	if(res)
+	// M3Result res = m3_CompileModule(app->runtime.m3Module);
+	// if(res)
+	// {
+	// 	M3ErrorInfo errInfo = {0};
+	// 	m3_GetErrorInfo(app->runtime.m3Runtime, &errInfo);
+
+	// 	log_error("wasm error: %s\n", errInfo.message);
+
+	// 	const char* options[] = {"OK"};
+	// 	mp_alert_popup("Error",
+	// 	               "The application couldn't load: can't compile web assembly module",
+	// 	               1,
+	// 	               options);
+	// 	mp_request_quit();
+	// 	return(-1);
+	// }
+
+	// bb_set_debug_trace_mode(BB_DEBUG_TRACE_FUNCTION);
+
+	app->runtime.bbModuleInst = bb_module_instance_init(app->runtime.bbModuleDef);
+	bb_module_instance_instantiate_opts module_inst_instantiate_opts = { 
+		.packages = &module_imports, 
+		.num_packages = 1, 
+		.stack_size = 1024 * 64,
+		.enable_debug = false,
+		.wasm_memory_config = {
+			.resize_callback = wasm_memory_resize_callback,
+			.free_callback = wasm_memory_free_callback,
+			.userdata = &app->runtime.wasmMemory,
+		},
+
+	};
+	wasm_init_err = bb_module_instance_instantiate(app->runtime.bbModuleInst, module_inst_instantiate_opts);
+
+	if (wasm_init_err != BB_ERROR_OK)
 	{
-		M3ErrorInfo errInfo = {0};
-		m3_GetErrorInfo(app->runtime.m3Runtime, &errInfo);
-
-		log_error("wasm error: %s\n", errInfo.message);
-
-		const char* options[] = {"OK"};
-		mp_alert_popup("Error",
-		               "The application couldn't load: can't compile web assembly module",
-		               1,
-		               options);
-
-		mp_request_quit();
-		return(-1);
+		return quit_on_wasm_init_failure("wasm instantiate", wasm_init_err);
 	}
 
+	bb_import_package_deinit(module_imports); // safe to deinit this now that the module has been instantiated
+
 	//NOTE: Find and type check event handlers.
 	for(int i=0; i<G_EXPORT_COUNT; i++)
 	{
 		const g_export_desc* desc = &G_EXPORT_DESC[i];
-		IM3Function handler = 0;
-		m3_FindFunction(&handler, app->runtime.m3Runtime, desc->name.ptr);
 
-		if(handler)
+		const bb_error find_func_err = bb_module_instance_find_func(app->runtime.bbModuleInst, desc->name.ptr, &app->runtime.exports[i]);
+		// IM3Function handler = 0;
+		// m3_FindFunction(&handler, app->runtime.m3Runtime, desc->name.ptr);
+
+		if(find_func_err == BB_ERROR_OK)
 		{
-			bool checked = false;
-
 			//NOTE: check function signature
-			int retCount = m3_GetRetCount(handler);
-			int argCount = m3_GetArgCount(handler);
-			if(retCount == desc->retTags.len && argCount == desc->argTags.len)
+			bb_func_info func_info = bb_module_instance_func_info(app->runtime.bbModuleInst, app->runtime.exports[i]);
+
+			bool checked = func_info.num_returns == desc->retTags.len && func_info.num_params == desc->argTags.len;
+
+			for(int retIndex = 0; checked && retIndex < func_info.num_returns; retIndex++)
 			{
-				checked = true;
-				for(int retIndex = 0; retIndex < retCount; retIndex++)
+				bb_valtype valtype;
+				if(tag_to_valtype(desc->retTags.ptr[retIndex], &valtype) && valtype != func_info.returns[retIndex])
 				{
-					M3ValueType m3Type = m3_GetRetType(handler, retIndex);
-					char tag = m3_type_to_tag(m3Type);
-
-					if(tag != desc->retTags.ptr[retIndex])
-					{
-						checked = false;
-						break;
-					}
-				}
-				if(checked)
-				{
-					for(int argIndex = 0; argIndex < argCount; argIndex++)
-					{
-						M3ValueType m3Type = m3_GetArgType(handler, argIndex);
-						char tag = m3_type_to_tag(m3Type);
-
-						if(tag != desc->argTags.ptr[argIndex])
-						{
-							checked = false;
-							break;
-						}
-					}
+					checked = false;
 				}
 			}
 
-			if(checked)
+			for(int argIndex = 0; checked && argIndex < func_info.num_params; argIndex++)
 			{
-				app->runtime.exports[i] = handler;
+				bb_valtype valtype;
+				if(tag_to_valtype(desc->argTags.ptr[argIndex], &valtype) && valtype != func_info.params[argIndex])
+				{
+					checked = false;
+				}
 			}
-			else
+
+			// int retCount = m3_GetRetCount(handler);
+			// int argCount = m3_GetArgCount(handler);
+			// if(retCount == desc->retTags.len && argCount == desc->argTags.len)
+			// {
+			// 	checked = true;
+			// 	for(int retIndex = 0; retIndex < retCount; retIndex++)
+			// 	{
+			// 		M3ValueType m3Type = m3_GetRetType(handler, retIndex);
+			// 		char tag = m3_type_to_tag(m3Type);
+
+			// 		if(tag != desc->retTags.ptr[retIndex])
+			// 		{
+			// 			checked = false;
+			// 			break;
+			// 		}
+			// 	}
+			// 	if(checked)
+			// 	{
+			// 		for(int argIndex = 0; argIndex < argCount; argIndex++)
+			// 		{
+			// 			M3ValueType m3Type = m3_GetArgType(handler, argIndex);
+			// 			char tag = m3_type_to_tag(m3Type);
+
+			// 			if(tag != desc->argTags.ptr[argIndex])
+			// 			{
+			// 				checked = false;
+			// 				break;
+			// 			}
+			// 		}
+			// 	}
+			// }
+
+			if(bb_func_handle_isvalid(app->runtime.exports[i]) == false)
 			{
 				log_error("type mismatch for event handler %.*s\n", (int)desc->name.len, desc->name.ptr);
 			}
@@ -436,8 +518,10 @@ i32 orca_runloop(void* user)
 	}
 
 	//NOTE: get location of the raw event slot
-	IM3Global rawEventGlobal = m3_FindGlobal(app->runtime.m3Module, "_OrcaRawEvent");
-	app->runtime.rawEventOffset = (u32)rawEventGlobal->intValue;
+	// IM3Global rawEventGlobal = m3_FindGlobal(app->runtime.m3Module, "_OrcaRawEvent");
+	// app->runtime.rawEventOffset = (u32)rawEventGlobal->intValue;
+	bb_global rawEventGlobal = bb_module_instance_find_global(app->runtime.bbModuleInst, "_OrcaRawEvent");
+	app->runtime.rawEventOffset = (u32)rawEventGlobal.value->i32_val;
 
 	//NOTE: preopen the app local root dir
 	{
@@ -454,17 +538,22 @@ i32 orca_runloop(void* user)
 	//NOTE: prepare GL surface
 	mg_surface_prepare(app->surface);
 
-	IM3Function* exports = app->runtime.exports;
+	// IM3Function* exports = app->runtime.exports;
+	bb_func_handle* exports = app->runtime.exports;
 
 	//NOTE: call init handler
-	if(exports[G_EXPORT_ON_INIT])
+	if(bb_func_handle_isvalid(exports[G_EXPORT_ON_INIT]))
 	{
-		M3Result err = m3_Call(exports[G_EXPORT_ON_INIT], 0, 0);
-		if(err != NULL)
-		{
-			log_error("runtime error: %s\n", err);
+		bb_error err = bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_ON_INIT], 0, 0, 0, 0, (bb_module_instance_invoke_opts){0});
 
-			str8 msg = str8_pushf(mem_scratch(), "Runtime error: %s\n", err);
+		// M3Result err = m3_Call(exports[G_EXPORT_ON_INIT], 0, 0);
+		// if(err != NULL)
+		if(err != BB_ERROR_OK)
+		{
+			const char* errStr = bb_error_str(err);
+			log_error("runtime error: %s\n", errStr);
+
+			str8 msg = str8_pushf(mem_scratch(), "Runtime error: %s\n", errStr);
 			const char* options[] = {"OK"};
 			mp_alert_popup("Error",
 		               	msg.ptr,
@@ -476,13 +565,14 @@ i32 orca_runloop(void* user)
 		}
 	}
 
-	if(exports[G_EXPORT_FRAME_RESIZE])
+	if(bb_func_handle_isvalid(exports[G_EXPORT_FRAME_RESIZE]))
 	{
 		mp_rect content = mp_window_get_content_rect(app->window);
-		u32 width = (u32)content.w;
-		u32 height = (u32)content.h;
-		const void* args[2] = {&width, &height};
-		m3_Call(exports[G_EXPORT_FRAME_RESIZE], 2, args);
+		const bb_val args[2] = {
+			{ .i32_val = (i32)content.w },
+			{ .i32_val = (i32)content.h },
+		};
+		bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_FRAME_RESIZE], args, 2, 0, 0, (bb_module_instance_invoke_opts){0});
 	}
 
 	ui_set_context(&app->debugOverlay.ui);
@@ -498,14 +588,14 @@ i32 orca_runloop(void* user)
 				ui_process_event(event);
 			}
 
-			if(exports[G_EXPORT_RAW_EVENT])
+			if(bb_func_handle_isvalid(exports[G_EXPORT_RAW_EVENT]))
 			{
 				#ifndef M3_BIG_ENDIAN
 				mp_event* eventPtr = (mp_event*)wasm_memory_offset_to_ptr(&app->runtime.wasmMemory, app->runtime.rawEventOffset);
 				memcpy(eventPtr, event, sizeof(*event));
-
-				const void* args[1] = {&app->runtime.rawEventOffset};
-				m3_Call(exports[G_EXPORT_RAW_EVENT], 1, args);
+				bb_val args[1];
+				args[0].i32_val = app->runtime.rawEventOffset;
+				bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_RAW_EVENT], args, 1, 0, 0, (bb_module_instance_invoke_opts){0});
 				#else
 				log_error("OnRawEvent() is not supported on big endian platforms");
 				#endif
@@ -522,12 +612,18 @@ i32 orca_runloop(void* user)
 				{
 					mp_rect frame = {0, 0, event->move.frame.w, event->move.frame.h};
 
-					if(exports[G_EXPORT_FRAME_RESIZE])
+					if(bb_func_handle_isvalid(exports[G_EXPORT_FRAME_RESIZE]))
 					{
-						u32 width = (u32)event->move.content.w;
-						u32 height = (u32)event->move.content.h;
-						const void* args[2] = {&width, &height};
-						m3_Call(exports[G_EXPORT_FRAME_RESIZE], 2, args);
+						const bb_val args[2] = {
+							{ .i32_val = (i32)(u32)event->move.content.w },
+							{ .i32_val = (i32)(u32)event->move.content.h },
+						};
+						bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_FRAME_RESIZE], args, 2, 0, 0, (bb_module_instance_invoke_opts){0});
+
+						// u32 width = (u32)event->move.content.w;
+						// u32 height = (u32)event->move.content.h;
+						// const void* args[2] = {&width, &height};
+						// m3_Call(exports[G_EXPORT_FRAME_RESIZE], 2, args);
 					}
 				} break;
 
@@ -535,30 +631,41 @@ i32 orca_runloop(void* user)
 				{
 					if(event->key.action == MP_KEY_PRESS)
 					{
-						if(exports[G_EXPORT_MOUSE_DOWN])
+						if(bb_func_handle_isvalid(exports[G_EXPORT_MOUSE_DOWN]))
 						{
-							int key = event->key.code;
-							const void* args[1] = {&key};
-							m3_Call(exports[G_EXPORT_MOUSE_DOWN], 1, args);
+							const bb_val key = {.i32_val = event->key.code };
+							// int key = event->key.code;
+							// const void* args[1] = {&key};
+							// m3_Call(exports[G_EXPORT_MOUSE_DOWN], 1, args);
+							bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_MOUSE_DOWN], &key, 1, 0, 0, (bb_module_instance_invoke_opts){0});
 						}
 					}
 					else
 					{
-						if(exports[G_EXPORT_MOUSE_UP])
+						if(bb_func_handle_isvalid(exports[G_EXPORT_MOUSE_UP]))
 						{
-							int key = event->key.code;
-							const void* args[1] = {&key};
-							m3_Call(exports[G_EXPORT_MOUSE_UP], 1, args);
+							const bb_val key = {.i32_val = event->key.code };
+							// int key = event->key.code;
+							// const void* args[1] = {&key};
+							// m3_Call(exports[G_EXPORT_MOUSE_UP], 1, args);
+							bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_MOUSE_UP], &key, 1, 0, 0, (bb_module_instance_invoke_opts){0});
 						}
 					}
 				} break;
 
 				case MP_EVENT_MOUSE_MOVE:
 				{
-					if(exports[G_EXPORT_MOUSE_MOVE])
+					if(bb_func_handle_isvalid(exports[G_EXPORT_MOUSE_MOVE]))
 					{
-						const void* args[4] = {&event->mouse.x, &event->mouse.y, &event->mouse.deltaX, &event->mouse.deltaY};
-						m3_Call(exports[G_EXPORT_MOUSE_MOVE], 4, args);
+						const bb_val args[4] = {
+							{ .f32_val = event->mouse.x },
+							{ .f32_val = event->mouse.y },
+							{ .f32_val = event->mouse.deltaX },
+							{ .f32_val = event->mouse.deltaY },
+						};
+						// const void* args[4] = {&event->mouse.x, &event->mouse.y, &event->mouse.deltaX, &event->mouse.deltaY};
+						// m3_Call(exports[G_EXPORT_MOUSE_MOVE], 4, args);
+						bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_MOUSE_MOVE], args, 4, 0, 0, (bb_module_instance_invoke_opts){0});
 					}
 				} break;
 
@@ -573,18 +680,22 @@ i32 orca_runloop(void* user)
 						#endif
 						}
 
-						if(exports[G_EXPORT_KEY_DOWN])
+						if(bb_func_handle_isvalid(exports[G_EXPORT_KEY_DOWN]))
 						{
-							const void* args[1] = {&event->key.code};
-							m3_Call(exports[G_EXPORT_KEY_DOWN], 1, args);
+							const bb_val key = {.i32_val = event->key.code };
+							// const void* args[1] = {&event->key.code};
+							// m3_Call(exports[G_EXPORT_KEY_DOWN], 1, args);
+							bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_KEY_DOWN], &key, 1, 0, 0, (bb_module_instance_invoke_opts){0});
 						}
 					}
 					else if(event->key.action == MP_KEY_RELEASE)
 					{
-						if(exports[G_EXPORT_KEY_UP])
+						if(bb_func_handle_isvalid(exports[G_EXPORT_KEY_UP]))
 						{
-							const void* args[1] = {&event->key.code};
-							m3_Call(exports[G_EXPORT_KEY_UP], 1, args);
+							const bb_val key = {.i32_val = event->key.code };
+							// const void* args[1] = {&event->key.code};
+							// m3_Call(exports[G_EXPORT_KEY_UP], 1, args);
+							bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_KEY_UP], &key, 1, 0, 0, (bb_module_instance_invoke_opts){0});
 						}
 					}
 				} break;
@@ -730,10 +841,11 @@ i32 orca_runloop(void* user)
 			mg_render(app->debugOverlay.surface, app->debugOverlay.canvas);
 		}
 
-		if(exports[G_EXPORT_FRAME_REFRESH])
+		if(bb_func_handle_isvalid(exports[G_EXPORT_FRAME_REFRESH]))
 		{
 			mg_surface_prepare(app->surface);
-			m3_Call(exports[G_EXPORT_FRAME_REFRESH], 0, 0);
+			// m3_Call(exports[G_EXPORT_FRAME_REFRESH], 0, 0);
+			bb_module_instance_invoke(app->runtime.bbModuleInst, exports[G_EXPORT_FRAME_REFRESH], 0, 0, 0, 0, (bb_module_instance_invoke_opts){0});
 		}
 
 		if(app->debugOverlay.show)

src/manual_gles_api.c

@@ -1,29 +1,28 @@
 
-const void* glShaderSource_stub(IM3Runtime runtime, IM3ImportContext _ctx, uint64_t * _sp, void * _mem)
+void glShaderSource_stub(void* userdata, bb_module_instance* module, const bb_val* params, bb_val* returns)
 {
-	i32 shader = *(i32*)&_sp[0];
-	i32 count = *(i32*)&_sp[1];
-	i32 stringArrayOffset = *(i32*)&_sp[2];
-	i32 lengthArrayOffset = *(i32*)&_sp[3];
+	i32 shader = params[0].i32_val;
+	i32 count = params[1].i32_val;
+	i32 stringArrayOffset = params[2].i32_val;
+	i32 lengthArrayOffset = params[3].i32_val;
 
-	int* stringOffsetArray = (int*)((char*)_mem + stringArrayOffset);
+	const int* lengthArray = lengthArrayOffset ? (int*)(bb_module_instance_mem(module, lengthArrayOffset, count * sizeof(int))) : 0;
+	const int* stringOffsetArray = (int*)(bb_module_instance_mem(module, stringArrayOffset, count * sizeof(int)));
 	const char** stringArray = (const char**)mem_arena_alloc_array(mem_scratch(), char*, count);
 	for(int i=0; i<count; i++)
 	{
-		stringArray[i] = (char*)_mem + stringOffsetArray[i];
+		stringArray[i] = (char*)bb_module_instance_mem(module, stringOffsetArray[i], lengthArray ? lengthArray[i] : (size_t)-1);
 	}
 
-	int* lengthArray = lengthArrayOffset ? (int*)((char*)_mem + lengthArrayOffset) : 0;
-
 	glShaderSource(shader, count, stringArray, lengthArray);
-	return(0);
 }
 
-int manual_link_gles_api(IM3Module module)
+int manual_link_gles_api(bb_import_package* package)
 {
-	M3Result res;
-	res = m3_LinkRawFunction(module, "*", "glShaderSource", "v(iiii)", glShaderSource_stub);
-	if(res) { log_error("error: %s\n", res); return(-1); }
+	bb_valtype params[] = {BB_VALTYPE_I32, BB_VALTYPE_I32, BB_VALTYPE_I32, BB_VALTYPE_I32};
+	size_t num_params = 4;
+	bb_error err = bb_import_package_add_function(package, glShaderSource_stub, "glShaderSource", params, num_params, NULL, 0, NULL);
+	if(err != BB_ERROR_OK) { log_error("error: %s\n", bb_error_str(err)); return(-1); }
 
 	return(0);
 }

src/memory_impl.c

@@ -8,17 +8,17 @@
 
 #include"orca_app.h"
 
-void* wasm_memory_resize_callback(void* p, unsigned long size, void* userData)
+void* wasm_memory_resize_callback(void* p, size_t new_size, size_t old_size, void* userData)
 {
 	wasm_memory* memory = (wasm_memory*)userData;
 
-	if(memory->committed >= size)
+	if(memory->committed >= new_size)
 	{
 		return(memory->ptr);
 	}
 	else if(memory->committed < memory->reserved)
 	{
-		u32 commitSize = size - memory->committed;
+		u32 commitSize = new_size - memory->committed;
 
 		mem_base_allocator* allocator = mem_base_allocator_default();
 		mem_base_commit(allocator, memory->ptr + memory->committed, commitSize);
@@ -30,9 +30,10 @@ void* wasm_memory_resize_callback(void* p, unsigned long size, void* userData)
 		DEBUG_ASSERT(0, "Out of memory");
 		return(0);
 	}
+	return NULL;
 }
 
-void wasm_memory_free_callback(void* p, void* userData)
+void wasm_memory_free_callback(void* p, size_t size, void* userData)
 {
 	wasm_memory* memory = (wasm_memory*)userData;
 
@@ -43,24 +44,30 @@ void wasm_memory_free_callback(void* p, void* userData)
 
 extern u32 orca_mem_grow(u64 size)
 {
+	const size_t PAGE_SIZE = 65536;
+
 	orca_runtime* runtime = orca_runtime_get();
 	wasm_memory* memory = &runtime->wasmMemory;
 
-	size = AlignUpOnPow2(size, d_m3MemPageSize);
-	u64 totalSize = size + m3_GetMemorySize(runtime->m3Runtime);
+	size = AlignUpOnPow2(size, PAGE_SIZE);
+	// u64 totalSize = size + m3_GetMemorySize(runtime->m3Runtime);
+	// bb_slice memory = bb_module_instance_mem_all(runtime->bbModuleInst);
 
 	u32 addr = memory->committed;
 
 	//NOTE: call resize memory, which will call our custom resize callback... this is a bit involved because
 	//      wasm3 doesn't allow resizing the memory directly
-	M3Result res = ResizeMemory(runtime->m3Runtime, totalSize/d_m3MemPageSize);
+	// M3Result res = ResizeMemory(runtime->m3Runtime, totalSize/PAGE_SIZE);
+	bb_module_instance_mem_grow(runtime->bbModuleInst, size/PAGE_SIZE);
 
 	return(addr);
 }
 
 void* wasm_memory_offset_to_ptr(wasm_memory* memory, u32 offset)
 {
-	M3MemoryHeader* header = (M3MemoryHeader*)(memory->ptr);
-	DEBUG_ASSERT(offset < header->length, "Wasm offset exceeds memory length")
-	return memory->ptr + sizeof(M3MemoryHeader) + offset;
+	DEBUG_ASSERT(offset < bb_module_instance_mem_all(orca_runtime_get()->bbModuleInst).length, "Wasm offset exceeds memory length")
+	return memory->ptr + offset;
+	// M3MemoryHeader* header = (M3MemoryHeader*)(memory->ptr);
+	// DEBUG_ASSERT(offset < header->length, "Wasm offset exceeds memory length")
+	// return memory->ptr + sizeof(M3MemoryHeader) + offset;
 }

src/orca_app.h

@@ -10,9 +10,11 @@
 
 #include"platform/platform_io_internal.h"
 
-#include"wasm3.h"
-#include"m3_env.h"
-#include"m3_compile.h"
+#include "bytebox.h"
+
+// #include"wasm3.h"
+// #include"m3_env.h"
+// #include"m3_compile.h"
 
 #define G_EXPORTS(X) \
 	X(G_EXPORT_ON_INIT, "OnInit", "", "") \
@@ -65,13 +67,19 @@ typedef struct orca_runtime
 	str8 wasmBytecode;
 	wasm_memory wasmMemory;
 
-	// wasm3 data
-	IM3Environment m3Env;
-	IM3Runtime m3Runtime;
-	IM3Module m3Module;
-	IM3Function exports[G_EXPORT_COUNT];
+	// bytebox data
+	bb_module_definition* bbModuleDef;
+	bb_module_instance* bbModuleInst;
+	bb_func_handle exports[G_EXPORT_COUNT];
 	u32 rawEventOffset;
 	
+	// wasm3 data
+	// IM3Environment m3Env;
+	// IM3Runtime m3Runtime;
+	// IM3Module m3Module;
+	// IM3Function exports[G_EXPORT_COUNT];
+	// u32 rawEventOffset;
+
 } orca_runtime;
 
 typedef struct log_entry