diff --git a/constants/SP2000.inc b/constants/SP2000.inc
index 2034816..3461462 100644
--- a/constants/SP2000.inc
+++ b/constants/SP2000.inc
@@ -603,10 +603,9 @@ SYS_PAGE                EQU #FE
 
 
 .USER_VARS              EQU #F018                                       ; переменные пользователя  
-.RAM_ATAPI_PK		EQU #FEE0; - #FEEC
-;!TODO  		EQU #FEED  - #FEEF
-.RAM_ATAPI_READ		EQU #FEF0; - #FEFC
-;!TODO  		EQU #FEFD  - #FEFF
+.SHARED_BUFFER_32b	EQU #FEE0; - #FEFF
+;.RAM_ATAPI_PK		EQU #FEE0; - #FEEC
+;.RAM_ATAPI_READ		EQU #FEF0; - #FEFC
 .CMOS_EMULATOR		EQU #FF00
 .USER_VARS_2		EQU .CMOS_EMULATOR + CMOS.MAX_ADDRESS + 1
 ;------------[ OLD ]-------------;