source: trunk/libs/newlib/src/include/opcode/spu.h @ 507

Last change on this file since 507 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 3.6 KB
RevLine 
[444]1/* SPU ELF support for BFD.
2
3   Copyright 2006, 2010 Free Software Foundation, Inc.
4
5   This file is part of GDB, GAS, and the GNU binutils.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program; if not, write to the Free Software Foundation,
19   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
20
21/* These two enums are from rel_apu/common/spu_asm_format.h */
22/* definition of instruction format */
23typedef enum {
24  RRR,
25  RI18,
26  RI16,
27  RI10,
28  RI8,
29  RI7,
30  RR,
31  LBT,
32  LBTI,
33  IDATA,
34  UNKNOWN_IFORMAT
35} spu_iformat;
36
37/* These values describe assembly instruction arguments.  They indicate
38 * how to encode, range checking and which relocation to use. */
39typedef enum {
40  A_T,  /* register at pos 0 */
41  A_A,  /* register at pos 7 */
42  A_B,  /* register at pos 14 */
43  A_C,  /* register at pos 21 */
44  A_S,  /* special purpose register at pos 7 */
45  A_H,  /* channel register at pos 7 */
46  A_P,  /* parenthesis, this has to separate regs from immediates */
47  A_S3,
48  A_S6,
49  A_S7N,
50  A_S7,
51  A_U7A,
52  A_U7B,
53  A_S10B,
54  A_S10,
55  A_S11,
56  A_S11I,
57  A_S14,
58  A_S16,
59  A_S18,
60  A_R18,
61  A_U3,
62  A_U5,
63  A_U6,
64  A_U7,
65  A_U14,
66  A_X16,
67  A_U18,
68  A_MAX
69} spu_aformat;
70
71enum spu_insns {
72#define APUOP(TAG,MACFORMAT,OPCODE,MNEMONIC,ASMFORMAT,DEP,PIPE) \
73        TAG,
74#define APUOPFB(TAG,MACFORMAT,OPCODE,FB,MNEMONIC,ASMFORMAT,DEP,PIPE) \
75        TAG,
76#include "opcode/spu-insns.h"
77#undef APUOP
78#undef APUOPFB
79        M_SPU_MAX
80};
81
82struct spu_opcode
83{
84   spu_iformat insn_type;
85   unsigned int opcode;
86   char *mnemonic;
87   int arg[5];
88};
89
90#define SIGNED_EXTRACT(insn,size,pos) (((int)((insn) << (32-size-pos))) >> (32-size))
91#define UNSIGNED_EXTRACT(insn,size,pos) (((insn) >> pos) & ((1 << size)-1))
92
93#define DECODE_INSN_RT(insn) (insn & 0x7f)
94#define DECODE_INSN_RA(insn) ((insn >> 7) & 0x7f)
95#define DECODE_INSN_RB(insn) ((insn >> 14) & 0x7f)
96#define DECODE_INSN_RC(insn) ((insn >> 21) & 0x7f)
97
98#define DECODE_INSN_I10(insn) SIGNED_EXTRACT(insn,10,14)
99#define DECODE_INSN_U10(insn) UNSIGNED_EXTRACT(insn,10,14)
100
101/* For branching, immediate loads, hbr and  lqa/stqa. */
102#define DECODE_INSN_I16(insn) SIGNED_EXTRACT(insn,16,7)
103#define DECODE_INSN_U16(insn) UNSIGNED_EXTRACT(insn,16,7)
104
105/* for stop */
106#define DECODE_INSN_U14(insn) UNSIGNED_EXTRACT(insn,14,0)
107
108/* For ila */
109#define DECODE_INSN_I18(insn) SIGNED_EXTRACT(insn,18,7)
110#define DECODE_INSN_U18(insn) UNSIGNED_EXTRACT(insn,18,7)
111
112/* For rotate and shift and generate control mask */
113#define DECODE_INSN_I7(insn) SIGNED_EXTRACT(insn,7,14)
114#define DECODE_INSN_U7(insn) UNSIGNED_EXTRACT(insn,7,14)
115
116/* For float <-> int conversion */
117#define DECODE_INSN_I8(insn)  SIGNED_EXTRACT(insn,8,14)
118#define DECODE_INSN_U8(insn) UNSIGNED_EXTRACT(insn,8,14)
119
120/* For hbr  */
121#define DECODE_INSN_I9a(insn) ((SIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
122#define DECODE_INSN_I9b(insn) ((SIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
123#define DECODE_INSN_U9a(insn) ((UNSIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
124#define DECODE_INSN_U9b(insn) ((UNSIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
125
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