diff --git a/BaS_gcc/sources/mmu.S b/BaS_gcc/sources/mmu.S
index 8f26628..edeff64 100644
--- a/BaS_gcc/sources/mmu.S
+++ b/BaS_gcc/sources/mmu.S
@@ -163,14 +163,14 @@ _mmu_init:
 		move.l	d3,MCF_MMU_MMUOR						// mapped to ffffxxx, precise,
 
 // 1fe0'0000 locked
-		move.l	#0x1FE00000|std_mmutr,d0				// last megabyte of RAM. Reserved for BaS in RAM and BaS in ROM/data+bss
+		move.l	#0x1FE00000|std_mmutr,d0				// last two megabytes of RAM. Reserved for BaS in RAM and BaS in ROM/data+bss
 		move.l	#0x1FE00000|copyback_mmudr|MCF_MMU_MMUDR_LK,d1
-		move.l	d0,MCF_MMU_MMUTR		
+		move.l	d0,MCF_MMU_MMUTR
 		move.l	d1,MCF_MMU_MMUDR
 		move.l	d2,MCF_MMU_MMUOR						// setzen data
 		move.l	d3,MCF_MMU_MMUOR						// setzen instr
 
-// 1ff0'0000 locked (FIXME: why is this?)
+// 1ff0'0000 locked
 		move.l	#0x1FF00000|std_mmutr,d0
 		move.l	#0x1FF00000|copyback_mmudr|MCF_MMU_MMUDR_LK,d1
 		move.l	d0,MCF_MMU_MMUTR