diff --git a/atari-xex.cfg b/atari-xex.cfg
index ee41c4c..e9090b4 100644
--- a/atari-xex.cfg
+++ b/atari-xex.cfg
@@ -10,18 +10,19 @@ SYMBOLS {
     __RESERVED_MEMORY__: type = weak, value = $0000;
     __SYSCHKHDR__:       type = export, value = 0; # Disable system check header
     __SYSCHKTRL__:       type = export, value = 0; # Disable system check trailer
+    __TABLESEG_SIZE__:     type = weak, value = 6 * $100;
+    __FRAMEBUFFER_START__: type = weak, value = $a000;
 }
 MEMORY {
     ZP:         file = "", define = yes, start = $0082, size = $007E;
 # "system check" load chunk
     SYSCHKCHNK: file = %O,               start = $2E00, size = $0300;
-# "main program" load chunk
 # Note we reserve $4000-7fff for the bank-switch window.
-    #MAIN:       file = %O, define = yes, start = %S,    size = $BC20 - __STACKSIZE__ - __RESERVED_MEMORY__ - %S;
-    MAIN:       file = %O, define = yes, start = %S,    size = $4000 - __STACKSIZE__ - __RESERVED_MEMORY__ - %S;
-
 # Note $a000-$bfff is against the BASIC cartridge, may require booting with OPTION.
-    TABLES:  file = %O, define = yes, start = $8000, size = $a000 - $8000;
+    TABLES:     file = %O, define = yes, start = %S, size = __TABLESEG_SIZE__;
+# "main program" load chunk
+    MAIN:       file = %O, define = yes, start = %S + __TABLESEG_SIZE__, size = __FRAMEBUFFER_START__ - __STACKSIZE__ - __RESERVED_MEMORY__ - __TABLESEG_SIZE__ - %S;
+
 }
 FILES {
     %O: format = atari;
@@ -34,6 +35,7 @@ SEGMENTS {
     ZEROPAGE:  load = ZP,         type = zp;
     EXTZP:     load = ZP,         type = zp,                optional = yes;
     SYSCHK:    load = SYSCHKCHNK, type = rw,  define = yes, optional = yes;
+    TABLES:    load = TABLES,     type = ro,  optional = yes, align = 256;
     STARTUP:   load = MAIN,       type = ro,  define = yes;
     LOWBSS:    load = MAIN,       type = rw,                optional = yes;  # not zero initialized
     LOWCODE:   load = MAIN,       type = ro,  define = yes, optional = yes;
@@ -43,7 +45,6 @@ SEGMENTS {
     DATA:      load = MAIN,       type = rw;
     INIT:      load = MAIN,       type = rw,                optional = yes;
     BSS:       load = MAIN,       type = bss, define = yes;
-    TABLES:    load = TABLES,     type = ro,  optional = yes, align = 256;
 }
 FEATURES {
     CONDES: type    = constructor,