diff --git a/BaS_GNU/BaS_GNU/bas.hex.map b/BaS_GNU/BaS_GNU/bas.hex.map
index aff34d8..a1d8cc8 100644
--- a/BaS_GNU/BaS_GNU/bas.hex.map
+++ b/BaS_GNU/BaS_GNU/bas.hex.map
@@ -7,12 +7,12 @@ code             0xe0000000         0x00200000         xr
 
 Linker script and memory map
 
-                0x1fe00000                __Bas_base = 0x1fe00000
+                0x1fe00000                _Bas_base = 0x1fe00000
                 0xe0000000                ___BOOT_FLASH = 0xe0000000
                 0x00800000                ___BOOT_FLASH_SIZE = 0x800000
                 0x00000000                ___SDRAM = 0x0
                 0x20000000                ___SDRAM_SIZE = 0x20000000
-                0x60000000                ___VRAM = 0x60000000
+                0x60000000                __VRAM = 0x60000000
                 0xff000000                ___MBAR = 0xff000000
                 0xff040000                ___MMUBAR = 0xff040000
                 0xff100000                ___RAMBAR0 = 0xff100000
@@ -141,16 +141,16 @@ Symbol                                            File
 BaS                                               objs/sysinit.o
 MCF_MMU_MMUCR                                     objs/startcf.o
 _BaS                                              objs/BaS.o
+_Bas_base                                         objs/exceptions.o
+                                                  objs/sysinit.o
 _MCF_PCICR1_CACHELINESIZE                         objs/sysinit.o
 _MCF_PCICR2_MINGNT                                objs/sysinit.o
-__Bas_base                                        objs/sysinit.o
 __MBAR                                            objs/exceptions.o
 __MMUBAR                                          objs/exceptions.o
 __VRAM                                            objs/sysinit.o
 ___BOOT_FLASH                                     objs/exceptions.o
                                                   objs/startcf.o
-___Bas_base                                       objs/exceptions.o
-                                                  objs/BaS.o
+___Bas_base                                       objs/BaS.o
 ___MBAR                                           objs/exceptions.o
                                                   objs/sd_card.o
                                                   objs/BaS.o
diff --git a/BaS_GNU/BaS_GNU/flash.lk b/BaS_GNU/BaS_GNU/flash.lk
index 5938ddf..ca45959 100644
--- a/BaS_GNU/BaS_GNU/flash.lk
+++ b/BaS_GNU/BaS_GNU/flash.lk
@@ -3,7 +3,7 @@ MEMORY {
 }
 
 SECTIONS {
-	__Bas_base		  = 0x1FE00000;
+	_Bas_base		  = 0x1FE00000;
 
 	/* Board Memory map definitions from linker command files:
 	 * __SDRAM,__SDRAM_SIZE, __CODE_FLASH, __CODE_FLASH_SIZE
@@ -18,7 +18,7 @@ SECTIONS {
  	___SDRAM_SIZE           = ABSOLUTE(0x20000000);
 
 	/* VIDEO RAM BASIS */
-	___VRAM                = ABSOLUTE(0x60000000);
+	__VRAM                = ABSOLUTE(0x60000000);
 
 	/*
 	 * MCF5475 Derivative Memory map definitions from linker command files:
diff --git a/BaS_GNU/BaS_GNU/lcf/FLASH.lcf b/BaS_GNU/BaS_GNU/lcf/FLASH.lcf
index 0315e2f..970ad7a 100644
--- a/BaS_GNU/BaS_GNU/lcf/FLASH.lcf
+++ b/BaS_GNU/BaS_GNU/lcf/FLASH.lcf
@@ -25,7 +25,7 @@ SECTIONS {
    ___SDRAM_SIZE           = 0x20000000;
    
 #VIDEO RAM BASIS
-   ___VRAM                = 0x60000000;
+   __VRAM                = 0x60000000;
 
 # MCF5475 Derivative Memory map definitions from linker command files:
 # __MBAR, __MMUBAR, __RAMBAR0, __RAMBAR0_SIZE, __RAMBAR1, __RAMBAR1_SIZE
diff --git a/BaS_GNU/BaS_GNU/sources/exceptions.S b/BaS_GNU/BaS_GNU/sources/exceptions.S
index 0997fd2..6dc2797 100644
--- a/BaS_GNU/BaS_GNU/sources/exceptions.S
+++ b/BaS_GNU/BaS_GNU/sources/exceptions.S
@@ -386,7 +386,7 @@ access_mmu:
 		btst	#1,d0
 		bne		bus_error
 		move.l	MCF_MMU_MMUAR,d0
-		cmp.l	#___Bas_base,d0		// max User RAM Bereich
+		cmp.l	#_Bas_base,d0		// max User RAM Bereich
 		bge		bus_error			// grösser -> bus error
 		bra		_mmutr_miss
 bus_error:
diff --git a/BaS_GNU/BaS_GNU/sources/sysinit.c b/BaS_GNU/BaS_GNU/sources/sysinit.c
index c5020d2..c44e4b8 100644
--- a/BaS_GNU/BaS_GNU/sources/sysinit.c
+++ b/BaS_GNU/BaS_GNU/sources/sysinit.c
@@ -14,7 +14,7 @@
 static const uint8_t *FPGA_FLASH_DATA = (uint8_t *) 0xe0700000L;
 static const uint8_t *FPGA_FLASH_DATA_END = (uint8_t *) 0xe0800000L;
 
-extern unsigned long __VRAM;
+extern unsigned long _VRAM;
 extern unsigned long _Bas_base;
 extern unsigned long BaS;
 extern unsigned long _BOOT_FLASH[];
@@ -798,7 +798,7 @@ asm(
 		"lea		copy_start,A0\n\t"
 		"lea		BaS,A1\n\t"
 		"sub.l		A0,A1\n\t"
-		"move.l		#__Bas_base,A2\n\t"
+		"move.l		#_Bas_base,A2\n\t"
 		"move.l		A2,A3\n\t"
 		"add.l		A1,A3\n\t"
 		"lea		copy_end,A4\n\t"