diff --git a/kernel/trunk/core/taskman.inc b/kernel/trunk/core/taskman.inc
index 79e5a64a88..79c865de04 100644
--- a/kernel/trunk/core/taskman.inc
+++ b/kernel/trunk/core/taskman.inc
@@ -884,8 +884,8 @@ proc new_sys_threads
 .get_lock:
        mov eax, 1
        xchg eax, [application_table_status]
-       cmp eax, 0
-       jne .wait_lock
+       test eax, eax
+       jnz .wait_lock
 
        call   set_application_table_status
 
@@ -934,7 +934,7 @@ proc new_sys_threads
        stdcall user_alloc, 4096
        pop edx
        test eax, eax
-       jz .failed
+       jz .failed1	;eax=0
 @@:
        mov [edx+APPDATA.tls_base], eax
 
@@ -943,14 +943,16 @@ proc new_sys_threads
                      dword 0,dword 0
 
        ;mov    esi,new_process_running
-       ;call   sys_msg_board_str            ;output information about succefull startup
-
-       mov    [application_table_status],0  ;unlock application_table_status mutex
-       mov    eax,[process_number]          ;set result
+       ;call   sys_msg_board_str            	;output information about succefull startup
+       xor    eax,eax
+       mov    [application_table_status],eax	;unlock application_table_status mutex
+       mov    eax,[process_number]          	;set result
        ret
 .failed:
-       mov    [application_table_status],0
-       mov    eax,-1
+       xor    eax,eax
+.failed1:
+       mov    [application_table_status],eax
+       dec    eax	;-1
        ret
 endp
 
@@ -1114,9 +1116,9 @@ proc set_app_params stdcall,slot:dword, params:dword,\
        mov    [ebx+4],eax       ;set PID
 
 ;set draw data to full screen
-
-       mov    [ecx+0],dword 0
-       mov    [ecx+4],dword 0
+       xor    eax,eax
+       mov    [ecx+0],dword eax
+       mov    [ecx+4],dword eax
        mov    eax,[Screen_Max_X]
        mov    [ecx+8],eax
        mov    eax,[Screen_Max_Y]
diff --git a/kernel/trunk/fs/fat12.inc b/kernel/trunk/fs/fat12.inc
index 08e4858b70..52cec3ff35 100644
--- a/kernel/trunk/fs/fat12.inc
+++ b/kernel/trunk/fs/fat12.inc
@@ -65,13 +65,13 @@ floppy_fileread:
 
     mov    [save_flag],0
     mov    [path_pointer_flp],edi
-    cmp    esi,0           ; return ramdisk root
-    jne    fr_noroot_1
+    test   esi,esi           ; return ramdisk root
+    jnz    fr_noroot_1
     cmp    ebx,224/16
     jbe    fr_do_1
     mov    eax,5
-    mov    ebx,0
-    mov   [flp_status],0
+    xor    ebx,ebx
+    mov   [flp_status],ebx
     ret
 
 fr_do_1:
@@ -2134,7 +2134,7 @@ fs_FloppySetFileInfo:
         popa
         pop     edi
         xor     eax, eax
-        cmp     [FDC_Status], 0
+        cmp     [FDC_Status], al
         jz      @f
         mov     al, 11
 @@:
diff --git a/kernel/trunk/fs/iso9660.inc b/kernel/trunk/fs/iso9660.inc
index 8f0555e29c..dad1361bf8 100644
--- a/kernel/trunk/fs/iso9660.inc
+++ b/kernel/trunk/fs/iso9660.inc
@@ -5,7 +5,7 @@
 ;;                                                              ;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-$Revision$
+$Revision:1322 $
 
 
 uglobal
@@ -625,8 +625,8 @@ cd_get_name:
 	mov   ebp,[cd_current_pointer_of_input_2]
 	mov   [cd_current_pointer_of_input],ebp
 	mov   eax,[ebp]
-	cmp   eax,0   ; входы закончились?
-	je    .next_sector
+	test   eax,eax   ; входы закончились?
+	jz    .next_sector
 	cmp   ebp,CDDataBuf+2048     ; буфер закончился?
 	jae   .next_sector
 	movzx eax, byte [ebp]
diff --git a/kernel/trunk/video/vesa12.inc b/kernel/trunk/video/vesa12.inc
index 6f7d275038..6034790759 100644
--- a/kernel/trunk/video/vesa12.inc
+++ b/kernel/trunk/video/vesa12.inc
@@ -258,7 +258,7 @@ vesa12_drawbackground:
         mov   [imax],eax
         mov   eax,[draw_data+32+RECT.left]
         mov   ebx,[draw_data+32+RECT.top]
-        mov   edi,0 ;no force
+        xor   edi,edi ;no force
 
       v12dp3: