diff --git a/asm-savers.h b/asm-savers.h
index 62e5d1f..64b8a0a 100644
--- a/asm-savers.h
+++ b/asm-savers.h
@@ -3,7 +3,7 @@
 
 #define ntsys_exit_if_error(parser) if (!ntsys_asm_arg_new((parser)->string, (parser)->cache))
 #define ntsys_run_asm_parser(ss)  __ntsys_arg_function_loader(&(ss))
-#define create_ntsys_asm_parser(cache, fp, str, table, table_size, labels, labels_pos, labels_count, cyc) ((ntsys_argument_parser_t){(cache), (fp), (str), (table), (table_size), (labels), (labels_pos), (labels_count), (cyc)})
+#define create_ntsys_asm_parser(cache, fp, str, table, table_size, labels, labels_pos, labels_count, cyc, f_sz) ((ntsys_argument_parser_t){(cache), (fp), (str), (table), (table_size), (labels), (labels_pos), (labels_count), (cyc), (f_sz), NULL})
 #define create_ntsys_asm_save(ss) ((ntsys_asm_save_t){(ss), (ss)})
 #define create_ntsys_asm_cache(ss) ((ntsys_asm_cache_t)&(ss))
 #define ntsys_asm_arg_new(str, __cache) ((ntsys_get_arg((__cache))) && ((str) = __cache->string))
@@ -147,6 +147,8 @@ typedef struct {
     word_t* labels_positions;
     size_t* labels_count;
     byte_t is_rewrite;
+    dword_t* file_size;
+    word_t* memory_size;
 } ntsys_argument_parser_t;
 
 static void __input_datatype(ntsys_argument_parser_t* parser, byte_t* mode) {
@@ -355,16 +357,45 @@ static int select_argument(ntsys_argument_parser_t* parser) {
         }
         i ++;
     }
-    ntsys_error("Undefined operator!");
-    /* WARNING! Обязательно заменить на EXIT_FAILURE! EXIT_SUCCESS нужен для отладки! */
-    puts(str);
-    return EXIT_SUCCESS;
+    printf("\033[1mntsys: \033[91mUndefined operator \"%s\"!\033[0m\n", str);
+    return EXIT_FAILURE;
+}
+
+byte_t fGH6VSEzu7qNiGVE_hd_ew = 0;
+
+static void __write_header(ntsys_argument_parser_t* parser) {
+    if (fGH6VSEzu7qNiGVE_hd_ew == 1) return;
+    fGH6VSEzu7qNiGVE_hd_ew = 1;
+    fputc(0x4D, parser->fp);
+    fputc(0x5A, parser->fp);
+    parser->memory_size = &fGH6VSEzu7qNiGVE_mem_size;
+    *parser->file_size += 8;
+    int __i = 1; 
+    if (!(*((char *)&__i) == 1)) {
+        /* BIG ENDIAN */
+        size_t i = 0;
+        byte_t* ar = (byte_t*)parser->file_size;
+        while (i < (sizeof(dword_t))) {
+            byte_t s = ar[i];
+            ar[i] = ar[(sizeof(dword_t)) - i - 1];
+            ar[(sizeof(dword_t)) - i - 1] = s;
+            i ++;
+        }
+        ar = (byte_t*)parser->memory_size;
+        byte_t s = ar[0];
+        ar[0] = ar[1];
+        ar[1] = s;
+    }
+    fwrite(parser->file_size, 1, sizeof(dword_t), parser->fp);
+    fwrite(parser->memory_size, 1, sizeof(word_t), parser->fp);
 }
 
 int __ntsys_arg_function_loader(ntsys_argument_parser_t* parser) {
+    if (parser->is_rewrite) __write_header(parser);
     while (ntsys_asm_arg_new(parser->string, parser->cache)) {
         if (select_argument(parser) == EXIT_FAILURE) return EXIT_FAILURE;
     }
+    if (parser->is_rewrite == 0) *parser->file_size = ftell(parser->fp) + 1;
     return EXIT_SUCCESS;
 }
 
diff --git a/example.asm b/example.asm
index 654a0c5..cba1995 100644
--- a/example.asm
+++ b/example.asm
@@ -1,7 +1,4 @@
 main:                             ; Метка main
     push.string "Hello, world!\n" ; Записываем строку
     push byte 0x00                ; Запись номера SYSCALL
-    syscall                       ; Системный вызов
-load:                             ; Цикл, здесь программа "зависнет"
-    push db load                  ; Адрес как db
-    jmp                           ; Выполняем
\ No newline at end of file
+    syscall                       ; Системный вызов
\ No newline at end of file
diff --git a/ntsys b/ntsys
index 40f64f9..0a02889 100755
Binary files a/ntsys and b/ntsys differ
diff --git a/ntsys-assembler.h b/ntsys-assembler.h
index 7b3aec9..e186c0d 100644
--- a/ntsys-assembler.h
+++ b/ntsys-assembler.h
@@ -12,7 +12,7 @@
  * XX - шестнадцатиричные данные
  */
 
-const size_t ntsys_command_count = 3;
+const size_t ntsys_command_count = 0x1B;
 
 char* ntsys_asm_table[] = {
     "push=00:T:D",
@@ -44,12 +44,17 @@ char* ntsys_asm_table[] = {
 
     "mwrt=16:T",
     "mread=17:T",
+
+    "getsp=18",
+    "setsp=19",
+
+    "syscall=1A"
 };
 
-int ntsys_asm_from_string(size_t* mempos, char* str, FILE* fp, byte_t cycle, ntsys_labels_array_t labels, word_t* labels_pos, size_t* labels_count) {
+int ntsys_asm_from_string(size_t* mempos, char* str, FILE* fp, byte_t cycle, ntsys_labels_array_t labels, word_t* labels_pos, size_t* labels_count, dword_t* fsz) {
     ntsys_asm_save_t __save = create_ntsys_asm_save(str);
     ntsys_asm_cache_t __cache = create_ntsys_asm_cache(__save);
-    ntsys_argument_parser_t parser = create_ntsys_asm_parser(__cache, fp, str, ntsys_asm_table, ntsys_command_count, labels, labels_pos, labels_count, cycle);
+    ntsys_argument_parser_t parser = create_ntsys_asm_parser(__cache, fp, str, ntsys_asm_table, ntsys_command_count, labels, labels_pos, labels_count, cycle, fsz);
     return ntsys_run_asm_parser(parser);
 }
 
@@ -89,8 +94,9 @@ int ntsys_compile_asm(char* filename, char* asm_out) {
     rewind(fp);
     FILE* ff = tmp;
     size_t labels_count = 0;
+    dword_t fsz = 0;
     while ((st = ntsys_get_str(st, fp)) != NULL) {
-        if (ntsys_asm_from_string(&mem_pos, st, tmp, 0, labels, labels_pos, &labels_count) != EXIT_SUCCESS) {
+        if (ntsys_asm_from_string(&mem_pos, st, tmp, 0, labels, labels_pos, &labels_count, &fsz) != EXIT_SUCCESS) {
             free(st);
             fclose(fp);
             fclose(tmp);
@@ -109,7 +115,7 @@ int ntsys_compile_asm(char* filename, char* asm_out) {
     free(st);
     rewind(fp);
     while ((st = ntsys_get_str(st, fp)) != NULL) {
-        if (ntsys_asm_from_string(&mem_pos, st, ff, 1, labels, labels_pos, &labels_count) != EXIT_SUCCESS) {
+        if (ntsys_asm_from_string(&mem_pos, st, ff, 1, labels, labels_pos, &labels_count, &fsz) != EXIT_SUCCESS) {
             free(st);
             fclose(fp);
             fclose(tmp);
diff --git a/ntsys.h b/ntsys.h
index 89303d2..1a66880 100644
--- a/ntsys.h
+++ b/ntsys.h
@@ -24,6 +24,8 @@
 #if (!defined(__LIB_ntsys_H_))
 #define __LIB_ntsys_H_
 
+#define NTSYS_ASSEMBLE_STANDARD_MEMORY_SIZE 4096
+
 #define NTSYS_VERSION "1.0"
 
 #define NAME_OF_32_BITS_TYPE unsigned int
@@ -57,12 +59,14 @@ size_t __ntsys_buffer_size = 0;
 unsigned int __ntsys_buffer_ptr = 0;
 int fGH6VSEzu7qNiGVE_stat = EXIT_SUCCESS;
 
-
 void ntsys_error(char* _err) {
     printf("\033[1mntsys: \033[91m%s\033[0m\n", _err);
 }
 
 #include "ntfiles.h"
+
+word_t fGH6VSEzu7qNiGVE_mem_size = NTSYS_ASSEMBLE_STANDARD_MEMORY_SIZE;
+
 #include "ntsys-assembler.h"
 
 static void __help(void) {
@@ -201,6 +205,7 @@ int _lib_ntsys_main(int argc, char** argv) {
     char mode = 'R';
     unsigned char out = 0;
     unsigned char debug = 0;
+    unsigned char mem = 0;
     while (t < argc) {
         char* str = argv[t];
         if (str[0] == '-') {
@@ -223,6 +228,9 @@ int _lib_ntsys_main(int argc, char** argv) {
                 out = 1;
                 mode = 'A';
                 break;
+                case 'm':
+                mem = 1;
+                break;
                 default:
                 ntsys_error("Unknown option!");
                 return EXIT_FAILURE;
@@ -231,6 +239,9 @@ int _lib_ntsys_main(int argc, char** argv) {
             if (out) {
                 asm_out = str;
                 out = 0;
+            } else if (mem) {
+                fGH6VSEzu7qNiGVE_mem_size = strtol(str, NULL, 10);
+                mem = 0;
             } else {
                 filename = str;
             }
diff --git a/out.exe b/out.exe
index 0d27294..65b9e18 100644
Binary files a/out.exe and b/out.exe differ