initial import of NetBSD tree

1 files changed, 70 insertions, 0 deletions

diff --git a/sys/arch/vax/boot/srt0.s b/sys/arch/vax/boot/srt0.s
new file mode 100644
index 00000000000..a85d02538ba
--- /dev/null
+++ b/sys/arch/vax/boot/srt0.s
@@ -0,0 +1,70 @@
+/*	$NetBSD: srt0.s,v 1.4 1995/09/16 16:20:20 ragge Exp $ */
+/*
+ * Copyright (c) 1994 Ludd, University of Lule}, Sweden.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed at Ludd, University of Lule}.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+ /* All bugs are subject to removal without further notice */
+
+
+/*
+ * Auto-moving startup code for standalone programs. Can be loaded
+ * (almost) anywhere in memory but moves itself to the position
+ * it is linked for. Must be started at first position, recommended
+ * is phys addr 0 (boot loads programs at 0, but starts them at the
+ * position set in a.out header.
+ */
+
+nisse:	.set	nisse,0		# pass -e nisse to ld gives OK start addr
+	.globl	nisse
+
+_start:	.globl	_start
+	nop;nop;		# If we get called by calls, or something
+	movl	$_start, sp	# Probably safe place for stack
+	subl2	$52, sp		# do not overwrite saved boot-registers
+
+	subl3   $_start, $_end, r0
+	moval   _start, r1
+	movl    $_start, r2
+	movc3	r0, (r1), (r2)	# should use movc5 instead, to clear bss.
+	
+	jsb	1f
+1:	movl    $relocated, (sp)   # return-address on top of stack
+	rsb                        # can be replaced with new address
+relocated:	                   # now relocation is done !!!
+	calls	$0,_main	# Were here!
+	halt			# no return
+
+	
+        .globl _hoppabort
+_hoppabort: .word 0x0
+        movl    4(ap), r6
+        movl    8(ap), r11
+        movl    0xc(ap), r10
+	movl	16(ap), r9
+        calls   $0,(r6)