diff --git a/constants/SP2000.inc b/constants/SP2000.inc
index 038851b..8ed0f8e 100644
--- a/constants/SP2000.inc
+++ b/constants/SP2000.inc
@@ -599,6 +599,7 @@ SYS_PAGE                EQU #FE
 
 .USER_VARS              EQU #F018                                       ; переменные пользователя  
 .CMOS_EMULATOR		EQU #FF00
+.USER_VARS_2		EQU .CMOS_EMULATOR + CMOS.MAX_ADDRESS + 1
 ;------------[ OLD ]-------------; 
 ;.SYSTEM_ID             EQU #C020                                       ; использовалась для подмены биос "NEW_BIOS"
 ;.MSD_FAT_SEC           EQU #C122                                       ; начальный сектор FAT
@@ -683,7 +684,6 @@ CMOS.Register:
 .year                   EQU     #09
 .century                EQU     #32
 
-
 ; bit7          - Update-In-Progress. read-only
 ; bit6..4       - %010: to turn the oscillator on and allow the RTC to keep time.
 ;                 %11x: enables the oscillator but holds the countdown chain in reset.
@@ -729,7 +729,8 @@ CMOS.Cell.ScreenSET     EQU     #1A
 .Mask.Sinc              EQU     #C0                                     ; SCREEN_HZ
 .Mask.Int               EQU     #30                                     ; SCREEN_INT
 ;
-
+CMOS.USED_MAX_ADDRESS	EQU	#3F
+CMOS.MAX_ADDRESS	EQU	#7F
 
 GR_BIT_END		EQU 7