Add initial support for the FreeBSD/alpha kernel. This is very much a

work in progress and has never booted a real machine.  Initial
development and testing was done using SimOS (see
http://simos.stanford.edu for details).  On the SimOS simulator, this
port successfully reaches single-user mode and has been tested with
loads as high as one copy of /bin/ls :-).

Obtained from: partly from NetBSD/alpha

6 files changed, 228 insertions, 0 deletions

diff --git a/sys/libkern/alpha/byte_swap_2.S b/sys/libkern/alpha/byte_swap_2.S
new file mode 100644
index 0000000..fab3c58
--- /dev/null
+++ b/sys/libkern/alpha/byte_swap_2.S
@@ -0,0 +1,47 @@
+/*	$NetBSD: byte_swap_2.S,v 1.2 1996/10/17 03:08:08 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#include <machine/asm.h>
+
+#ifndef NAME
+#define	NAME byte_swap_2
+#endif
+
+/*
+ * Byte-swap a 2-byte quantity.  (Convert 0x0123 to 0x2301.)
+ *
+ * Argument is an unsigned 2-byte integer (u_int16_t).
+ */
+LEAF(NAME, 1)			/* a0 contains 0x0123 */
+	extbl	a0, 0, t0	/* t0 = 0x  23 */
+	extbl	a0, 1, t1	/* t1 = 0x  01 */
+	sll	t0, 8, t0	/* t1 = 0x23   */
+	or	t0, t1, v0	/* v0 = 0x2301 */
+	RET
+END(NAME)
diff --git a/sys/libkern/alpha/byte_swap_4.S b/sys/libkern/alpha/byte_swap_4.S
new file mode 100644
index 0000000..8dbb83c
--- /dev/null
+++ b/sys/libkern/alpha/byte_swap_4.S
@@ -0,0 +1,53 @@
+/*	$NetBSD: byte_swap_4.S,v 1.2 1996/10/17 03:08:09 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#include <machine/asm.h>
+
+#ifndef NAME
+#define	NAME byte_swap_4
+#endif
+
+/*
+ * Byte-swap a 4-byte quantity.  (Convert 0x01234567 to 0x67452301.)
+ *
+ * Argument is an unsigned 4-byte integer (u_int32_t).
+ */
+LEAF(NAME, 1)			/* a0 contains 0x01234567 */
+	extbl	a0, 0, t0	/* t0 = 0x      67 */
+	extbl	a0, 1, t1	/* t1 = 0x      45 */
+	extbl	a0, 2, t2	/* t2 = 0x      23 */
+	extbl	a0, 3, t3	/* t3 = 0x      01 */
+	sll	t0, 24, t0	/* t0 = 0x67       */
+	sll	t1, 16, t1	/* t1 = 0x  45     */
+	sll	t2, 8, t2	/* t2 = 0x    23   */
+	or	t3, t0, v0	/* v0 = 0x67    01 */
+	or	t1, t2, t1	/* t1 = 0x  4523   */
+	or	t1, v0, v0	/* v0 = 0x67452301 */
+	RET
+END(NAME)
diff --git a/sys/libkern/alpha/htonl.S b/sys/libkern/alpha/htonl.S
new file mode 100644
index 0000000..7fab6f9
--- /dev/null
+++ b/sys/libkern/alpha/htonl.S
@@ -0,0 +1,32 @@
+/*	$NetBSD: htonl.S,v 1.1 1996/04/17 22:36:52 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#define	NAME	htonl
+
+#include <libkern/alpha/byte_swap_4.S>
diff --git a/sys/libkern/alpha/htons.S b/sys/libkern/alpha/htons.S
new file mode 100644
index 0000000..392578c
--- /dev/null
+++ b/sys/libkern/alpha/htons.S
@@ -0,0 +1,32 @@
+/*	$NetBSD: htons.S,v 1.1 1996/04/17 22:36:54 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#define	NAME	htons
+
+#include <libkern/alpha/byte_swap_2.S>
diff --git a/sys/libkern/alpha/ntohl.S b/sys/libkern/alpha/ntohl.S
new file mode 100644
index 0000000..370848a
--- /dev/null
+++ b/sys/libkern/alpha/ntohl.S
@@ -0,0 +1,32 @@
+/*	$NetBSD: ntohl.S,v 1.1 1996/04/17 22:36:57 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#define	NAME	ntohl
+
+#include <libkern/alpha/byte_swap_4.S>
diff --git a/sys/libkern/alpha/ntohs.S b/sys/libkern/alpha/ntohs.S
new file mode 100644
index 0000000..80be3f8
--- /dev/null
+++ b/sys/libkern/alpha/ntohs.S
@@ -0,0 +1,32 @@
+/*	$NetBSD: ntohs.S,v 1.1 1996/04/17 22:37:02 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#define	NAME	ntohs
+
+#include <libkern/alpha/byte_swap_2.S>