1/* $NetBSD: reg.h,v 1.1 2014/08/10 05:47:38 matt Exp $ */
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas of 3am Software Foundry.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _OR1K_REG_H_
33#define _OR1K_REG_H_
34
35// r0 = must contain 0
36// r1 = SP (stack pointer)
37// r2 = FP (frame pointer)
38// r3-r8 = arg param 0-5
39// r9 = LR (link register)
40// r10 = TP (thread pointer)
41// r11 = RV
42// r12 = RVH (64-bit returns)
43// r13, r15, r17, r19, r21, r23, r25, r27, r29, r31 - temporary
44// r14, r16, r18, r20, r22, r24, r26, r28, r30 - callee saved
45// r16 = GOT address (PIC)
46
47struct reg {
48#ifdef _LP64
49	uint32_t r_reg[31]; /* r0 is always 0 */
50#else
51	uint64_t r_reg[31]; /* r0 is always 0 */
52#endif
53};
54
55struct fpreg {
56	uint32_t f_fpcsr;
57};
58
59#endif /* _OR1K_REG_H_ */
60