diff --git a/apps/board_cycle.asm b/apps/board_cycle.asm
index 8a5e0d4..8ba4ebb 100644
--- a/apps/board_cycle.asm
+++ b/apps/board_cycle.asm
@@ -16,10 +16,17 @@ start:
         pushfd
         btr     dword[esp], BSF EFLAGS.ID
         popfd
+        mov     ecx, '0'
+next_char:
+        cmp     ecx, '9'
+        jbe     @f
+        mov     ecx, '0'
 @@:
-jmp $
-        mcall   63, 1, '*'
-        jmp     @b
+        mcall   63, 1
+;jmp $
+        mcall   5, 10
+        inc     ecx
+        jmp     next_char
 exit:
         mcall   18, 9, 2
         mcall   -1
diff --git a/umka.asm b/umka.asm
index 5e713a2..6555c24 100644
--- a/umka.asm
+++ b/umka.asm
@@ -336,14 +336,16 @@ purge cmp
 purge mov
 restore OS_BASE
 include 'core/sync.inc'
-;include 'core/sys32.inc'
 macro call target {
   if target eq do_change_task
         call    _do_change_task
+  else if target eq page_fault_handler
+        call    _page_fault_handler
   else
         call    target
   end if
 }
+include 'core/sys32.inc'
 do_change_task equ hjk
 irq0 equ irq0_pew
 tss._io_map_0 equ 0
@@ -762,11 +764,12 @@ endp
 
 pubsym skin_udata
 proc idle uses ebx esi edi
+        sti
 .loop:
         mov     ecx, 10000000
 @@:
         loop    @b
-        DEBUGF 1, "1 idle\n"
+;        DEBUGF 1, "1 idle\n"
         jmp     .loop
 
         ret
@@ -793,6 +796,10 @@ proc _pci_read_reg uses ebx esi edi
         ret
 endp
 
+proc _page_fault_handler
+        ret
+endp
+
 proc sys_msg_board
         cmp     cl, 0x0d
         jz      @f
@@ -901,8 +908,6 @@ check_fdd_motor_status:
 check_ATAPI_device_event:
 check_fdd_motor_status_has_work?:
 check_ATAPI_device_event_has_work?:
-request_terminate:
-terminate:
 LoadMedium:
 clear_CD_cache:
 allow_medium_removal:
@@ -913,23 +918,28 @@ init_sys_v86:
 usb_init:
 fdc_init:
 mtrr_validate:
-protect_from_terminate:
-unprotect_from_terminate:
+; sys32.inc
+;terminate:
+;protect_from_terminate:
+;unprotect_from_terminate:
+;lock_application_table:
+;unlock_application_table:
+;build_interrupt_table:
+;sys_resize_app_memory:
+;request_terminate:
+v86_exc_c:
+except_7:
 ReadCDWRetr:
 WaitUnitReady:
 prevent_medium_removal:
 Read_TOC:
-lock_application_table:
-unlock_application_table:
 free_page:
-build_interrupt_table:
 init_fpu:
 init_mtrr:
 create_trampoline_pgmap:
 alloc_page:
 
 ;sys_IPC:
-sys_resize_app_memory:
 ;f68:
 v86_irq:
 ;test_cpu:
@@ -1129,6 +1139,10 @@ forward
         dw 0
   else if x eq (tss shr 16) and 0xFF00
         dw 0
+  else if x eq i40 and 0xFFFF
+        dw 0
+  else if x eq i40 shr 16
+        dw 0
   else
         dw x
   end if
diff --git a/umka.h b/umka.h
index be7557e..7239e7f 100644
--- a/umka.h
+++ b/umka.h
@@ -1120,6 +1120,16 @@ umka_sys_write_text(size_t x, size_t y, uint32_t color, int asciiz,
         : "memory");
 }
 
+static inline void
+umka_sys_delay(size_t cs) {
+    __asm__ __inline__ __volatile__ (
+        "call   i40"
+        :
+        : "a"(5),
+          "b"(cs)
+        : "memory");
+}
+
 static inline void
 umka_sys_put_image(void *image, size_t xsize, size_t ysize, size_t x,
                    size_t y) {
diff --git a/umka_os.c b/umka_os.c
index de8118b..de1b5f3 100644
--- a/umka_os.c
+++ b/umka_os.c
@@ -164,17 +164,18 @@ main() {
     kos_boot.pitch = UMKA_DEFAULT_DISPLAY_WIDTH*4;  // 32bpp
 
     umka_init();
-    umka_stack_init();
+//    umka_stack_init();
 
-    FILE *f = fopen("../img/kolibri.img", "r");
+    FILE *f = fopen("../img/kolibri.raw", "r");
     fread(kos_ramdisk, 2880*512, 1, f);
     fclose(f);
     kos_ramdisk_init();
 //    load_app_host("../apps/board_cycle", app_base);
+    load_app_host("../apps/lsdir", app_base);
 //    load_app("/rd/1/loader");
 
-    net_device_t *vnet = vnet_init();
-    kos_net_add_device(vnet);
+//    net_device_t *vnet = vnet_init();
+//    kos_net_add_device(vnet);
 
     char devname[64];
     for (size_t i = 0; i < umka_sys_net_get_dev_count(); i++) {
@@ -184,6 +185,7 @@ main() {
         fprintf(stderr, "[net_drv] device %i: %s %u\n", i, devname, devtype);
     }
 
+/*
     // network setup should be done from the userspace app, e.g. via zeroconf
     f76ret_t r76;
     r76 = umka_sys_net_ipv4_set_subnet(1, inet_addr("255.255.255.0"));
@@ -209,9 +211,10 @@ main() {
         fprintf(stderr, "[net_drv] set ip addr error\n");
         return -1;
     }
+*/
 
-
-    thread_start(0, monitor, THREAD_STACK_SIZE);
+//    thread_start(0, monitor, THREAD_STACK_SIZE);
+    thread_start(0, app_base, THREAD_STACK_SIZE);
 
     dump_procs();