--- src/sys/boot/i386/boot2/Attic/sio.S	2004/06/27 08:00:46	1.5
+++ src/sys/boot/i386/boot2/Attic/sio.S	2004/07/18 23:40:01	1.6
@@ -1,21 +1,20 @@
-#
-# Copyright (c) 1998 Robert Nordier
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms are freely
-# permitted provided that the above copyright notice and this
-# paragraph and the following disclaimer are duplicated in all
-# such forms.
-#
-# This software is provided "AS IS" and without any express or
-# implied warranties, including, without limitation, the implied
-# warranties of merchantability and fitness for a particular
-# purpose.
-#
-
-# $FreeBSD: src/sys/boot/i386/boot2/sio.s,v 1.4 1999/08/28 00:40:02 peter Exp $
-# $DragonFly$
-
+/*
+ * Copyright (c) 1998 Robert Nordier
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are freely
+ * permitted provided that the above copyright notice and this
+ * paragraph and the following disclaimer are duplicated in all
+ * such forms.
+ *
+ * This software is provided "AS IS" and without any express or
+ * implied warranties, including, without limitation, the implied
+ * warranties of merchantability and fitness for a particular
+ * purpose.
+ *
+ * $FreeBSD: src/sys/boot/i386/boot2/sio.s,v 1.4 1999/08/28 00:40:02 peter Exp $
+ * $DragonFly$
+ */
 		.set SIO_PRT,SIOPRT		# Base port
 		.set SIO_FMT,SIOFMT		# 8N1
 		.set SIO_DIV,(115200/SIOSPD)	# 115200 / SPD
@@ -26,12 +25,13 @@
 		.globl sio_getc
 		.globl sio_ischar
 
-# int sio_init(void)
-# 
-# returns non-zero if we couldn't init, which can happen if the
-# serial port is unmapped and the inb's all return 0xFF (we fail
-# to flush the input).
-
+		/*
+		 * int sio_init(void)
+		 * 
+		 * returns non-zero if we couldn't init, which can happen if
+		 * the serial port is unmapped and the inb's all return
+		 * 0xFF (we fail to flush the input).
+		 */
 sio_init:	movw $SIO_PRT+0x3,%dx		# Data format reg
 		movb $SIO_FMT|0x80,%al		# Set format and DLAB
 		outb %al,(%dx)			# BASE+3
@@ -40,9 +40,12 @@ sio_init:	movw $SIO_PRT+0x3,%dx		# Data
 		outw %ax,(%dx)			# BASE+0 (divisor w/ DLAB set)
 		movw $SIO_PRT+0x2,%dx
 		movb $0x01,%al			# Enable FIFO
-		# DISABLED - apparently many new laptops only implement 
-		# 8250s, this might crash them? XXX
-		# outb %al,(%dx)			# BASE+2
+
+		/* 
+		 * DISABLED - apparently many new laptops only implement 
+		 * 8250s, this might crash them? XXX
+		 */
+		 /* outb %al,(%dx) */			# BASE+2
 		incl %edx
 		movb $SIO_FMT,%al		# Clear DLAB
 		outb %al,(%dx)			# BASE+3
@@ -51,20 +54,22 @@ sio_init:	movw $SIO_PRT+0x3,%dx		# Data
 		outb %al,(%dx)			# BASE+4
 		incl %edx			# BASE+5 Line status reg
 
-		# fall through to io_flush
-		#
-		# sio_flush: flush pending data in the serial port,
-		# return non-zero if we were unable to flush (aka
-		# ischar always returned true)
-
+		/* 
+		 * fall through to io_flush
+		 *
+		 * sio_flush: flush pending data in the serial port,
+		 * return non-zero if we were unable to flush (aka
+		 * ischar always returned true)
+		 */
 sio_flush:	movb $1,%ch			# let %cl be garbage
 1:		call sio_getc.1
 		call sio_ischar
 		loopnz 1b
 		ret
 
-# void sio_putc(int c)
-
+		/*
+		 * void sio_putc(int c)
+		 */
 sio_putc:	movw $SIO_PRT+0x5,%dx		# Line status reg
 		movb $0x40,%ch			# Timeout counter.  Allow %cl
 						# to contain garbage.
@@ -77,16 +82,18 @@ sio_putc.1:	inb (%dx),%al			# Transmitte
 		outb %al,(%dx)			# Write character
 sio_putc.2:	ret $0x4
 
-# int sio_getc(void)
-
+		/*
+		 * int sio_getc(void)
+		 */
 sio_getc:	call sio_ischar 		# Character available?
 		jz sio_getc			# No
 sio_getc.1:	subb $0x5,%dl			# Receiver buffer reg
 		inb (%dx),%al			# Read character
 		ret
 
-# int sio_ischar(void)
-
+		/*
+		 * int sio_ischar(void)
+		 */
 sio_ischar:	movw $SIO_PRT+0x5,%dx		# Line status register
 		xorl %eax,%eax			# Zero
 		inb (%dx),%al			# Received data ready?
@@ -94,6 +101,6 @@ sio_ischar:	movw $SIO_PRT+0x5,%dx		# Lin
 		ret
 
 		.globl inbser
-inbser:	movw $SIO_PRT+5,%dx
+inbser:		movw $SIO_PRT+5,%dx
 		inb (%dx),%al
 		ret