Index: prolog/fsmain.s
===================================================================
--- prolog/fsmain.s	(revision 84c01255fcf53ea395d67ce5468972fe0ba4aca6)
+++ prolog/fsmain.s	(revision 27c8d4002e04fa5beee2de6454fd13922f10e079)
@@ -13,14 +13,14 @@
 		.xdef	start_
 
-		.xref	_Croot
+		.xref	Croot
 
-		.xdef	_panic
-		.xdef	_brk
+		.xdef	panic
+		.xdef	brk
 
-		.xdef	__heap
-		.xdef	__break
-		.xdef	__pmesg
+		.xdef	_heap
+		.xdef	_break
+		.xdef	_pmesg
 
-		.xdef	_errno
+		.xdef	errno
 
 p_bbase		=	0x18		| bss base
@@ -53,13 +53,13 @@
 		move.l	p_bbase(a1),d0	| Calculate break address
 		add.l	p_blen(a1),d0	| ...
-		move.l	d0,__break	| Set initial break
-		move.l	d0,__heap	| Set heap start
+		move.l	d0,_break	| Set initial break
+		move.l	d0,_heap	| Set heap start
 
 		move.l	#0,-(a7)	| Pass NULL to Croot  (no command line)
-		jsr	_Croot		| call Croot() routine
+		jsr	Croot		| call Croot() routine
 		addq.l	#4,a7		| ...
 
 		move.l	#pmsg1,-(a7)	| panic(pmsg1);
-		jsr	_panic		| ...
+		jsr	panic		| ...
 		addq.l	#4,a7		| ...
 
@@ -69,8 +69,8 @@
 		.page
 
-| _panic -- hard halt for fatal errors
-| ------    --------------------------
-_panic:		movea.l	4(a7),a0	| Save panic message address
-		move.l	a0,__pmesg	| ...
+| panic -- hard halt for fatal errors
+| -----    --------------------------
+panic:		movea.l	4(a7),a0	| Save panic message address
+		move.l	a0,_pmesg	| ...
 
 		trap	#15		| Invoke ROMP  (we hope ...)
@@ -81,9 +81,9 @@
 		.page
 
-| _brk -- set break value
-| ----    ---------------
+| brk -- set break value
+| ---    ---------------
 | WARNING:  This only works if the stack is above the heap.
 
-_brk:		cmpa.l	__break,a7	| compare current break with stack
+brk:		cmpa.l	_break,a7	| compare current break with stack
 		bcs	pstop		| actual stack overflow!
 
@@ -94,5 +94,5 @@
 		bcs	badbrk		| 	bad break;
 
-		move.l	d0,__break	| OK break: save the break
+		move.l	d0,_break	| OK break: save the break
 		clr.l	d0		| Set OK return
 		rts			| return
@@ -118,8 +118,8 @@
 		.even
 
-__pmesg:	.ds.l	1	| panic() message string address
-__heap:		.ds.l	1	| Heap start  (initial break)
-__break:	.ds.l	1	| Current break location
-_errno:		.ds.w	1	| System error number
+_pmesg:		.ds.l	1	| panic() message string address
+_heap:		.ds.l	1	| Heap start  (initial break)
+_break:		.ds.l	1	| Current break location
+errno:		.ds.w	1	| System error number
 
 	.end