update to netbsd

1 files changed, 80 insertions, 0 deletions

diff --git a/sys/arch/alpha/stand/start.S b/sys/arch/alpha/stand/start.S
new file mode 100644
index 00000000000..8d8001ffbdd
--- /dev/null
+++ b/sys/arch/alpha/stand/start.S
@@ -0,0 +1,80 @@
+/*	$NetBSD: start.S,v 1.1 1995/11/23 02:39:15 cgd Exp $	*/
+
+/*  
+ * Mach Operating System
+ * Copyright (c) 1992 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * 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 Mellon
+ * the rights to redistribute these changes.
+ */
+
+#include "include/asm.h"
+
+/*
+ * start --
+ *	Entry point for boot/standalone programs.
+ *
+ * Arguments:
+ *	a0				long (first free physical page)
+ *
+ * This is where the prom comes to.  Leaves all exception and interrupts
+ * to prom, runs off prom's stack too.  No return values.
+ */
+	.text
+	.set	noreorder		/* don't reorder instructions */
+
+#define ENTRY_FRAME	32
+
+NESTED(start, 1, ENTRY_FRAME, ra, 0, 0)
+	br	pv,1f
+1:	SETGP(pv)
+
+#ifndef PRIMARY_BOOTBLOCK
+	lda	sp,start		/* start stack below text */
+	lda	sp,-ENTRY_FRAME(sp)
+#endif
+
+	lda	a0,_EDATA
+	lda	a1,_end
+	subq	a1,a0,a1
+	CALL(bzero)
+
+	CALL(main)			/* transfer to C */
+
+XLEAF(halt, 0)
+	call_pal PAL_halt		/* halt if we ever return */
+END(start)
+
+/*
+ * Dummy routine for GCC2.
+ */
+LEAF(__main,0)
+	RET
+END(__main)
+
+/*
+ * cpu_number
+ *	Return the cpu number, using the whami instruction.
+ */
+LEAF(cpu_number, 0)
+	call_pal PAL_VMS_mfpr_whami
+	RET
+END(cpu_number)