initial import of NetBSD tree

1 files changed, 89 insertions, 0 deletions

diff --git a/sys/arch/alpha/include/frame.h b/sys/arch/alpha/include/frame.h
new file mode 100644
index 00000000000..694d25e160d
--- /dev/null
+++ b/sys/arch/alpha/include/frame.h
@@ -0,0 +1,89 @@
+/*	$NetBSD: frame.h,v 1.1 1995/02/13 23:07:39 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 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.
+ */
+
+#ifndef _ALPHA_FRAME_H_
+#define	_ALPHA_FRAME_H_
+
+/*
+ * XXX where did this info come from?
+ */
+
+/*
+ * Trap and syscall frame.
+ *
+ * Hardware puts fields marked "[HW]" on stack.  We have to add
+ * all of the general-purpose registers except for zero, for sp,
+ * which is automatically saved in usp for traps, and implicitly
+ * saved for syscalls, and for a0-a2, which are saved by hardware.
+ */
+
+/* Number of registers saved, including padding. */
+#define	FRAME_NSAVEREGS	28
+
+/* The offsets of the registers to be saved, into the array. */
+#define	FRAME_V0	0
+#define	FRAME_T0	1
+#define	FRAME_T1	2
+#define	FRAME_T2	3
+#define	FRAME_T3	4
+#define	FRAME_T4	5
+#define	FRAME_T5	6
+#define	FRAME_T6	7
+#define	FRAME_T7	8
+#define	FRAME_S0	9
+#define	FRAME_S1	10
+#define	FRAME_S2	11
+#define	FRAME_S3	12
+#define	FRAME_S4	13
+#define	FRAME_S5	14
+#define	FRAME_S6	15
+#define	FRAME_A3	16
+#define	FRAME_A4	17
+#define	FRAME_A5	18
+#define	FRAME_T8	19
+#define	FRAME_T9	20
+#define	FRAME_T10	21
+#define	FRAME_T11	22
+#define	FRAME_RA	23
+#define	FRAME_T12	24
+#define	FRAME_AT	25
+#define	FRAME_SP	26
+#define	FRAME_SPARE	27	/* spare; padding */
+
+struct trapframe {
+	u_int64_t	tf_regs[FRAME_NSAVEREGS]; /* GPRs (listed above) */
+	u_int64_t	tf_ps;			/* processor status [HW] */
+	u_int64_t	tf_pc;			/* program counter [HW] */
+	u_int64_t	tf_gp;			/* global pointer [HW] */
+	u_int64_t	tf_a0;			/* saved a0 [HW] */
+	u_int64_t	tf_a1;			/* saved a1 [HW] */
+	u_int64_t	tf_a2;			/* saved a2 [HW] */
+};
+
+#endif /* _ALPHA_FRAME_H_ */