source: trunk/libs/newlib/src/include/opcode/d30v.h @ 584

Last change on this file since 584 was 444, checked in by satin@…, 7 years ago

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

File size: 8.7 KB
Line 
1/* d30v.h -- Header file for D30V opcode table
2   Copyright 1997, 1998, 1999, 2000, 2001, 2003, 2010
3   Free Software Foundation, Inc.
4   Written by Martin Hunt (hunt@cygnus.com), Cygnus Solutions
5
6   This file is part of GDB, GAS, and the GNU binutils.
7
8   GDB, GAS, and the GNU binutils are free software; you can redistribute
9   them and/or modify them under the terms of the GNU General Public
10   License as published by the Free Software Foundation; either version 3,
11   or (at your option) any later version.
12
13   GDB, GAS, and the GNU binutils are distributed in the hope that they
14   will be useful, but WITHOUT ANY WARRANTY; without even the implied
15   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
16   the GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this file; see the file COPYING3.  If not, write to the Free
20   Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
21   MA 02110-1301, USA.  */
22
23#ifndef D30V_H
24#define D30V_H
25
26#define NOP 0x00F00000
27
28/* Structure to hold information about predefined registers.  */
29struct pd_reg
30{
31  char *name;           /* name to recognize */
32  char *pname;          /* name to print for this register */
33  int value;
34};
35
36extern const struct pd_reg pre_defined_registers[];
37int reg_name_cnt (void);
38
39/* the number of control registers */
40#define MAX_CONTROL_REG 64
41
42/* define the format specifiers */
43#define FM00    0
44#define FM01    0x80000000
45#define FM10    0x8000000000000000LL
46#define FM11    0x8000000080000000LL
47
48/* define the opcode classes */
49#define BRA     0
50#define LOGIC   1
51#define IMEM    2
52#define IALU1   4
53#define IALU2   5
54
55/* define the execution condition codes */
56#define ECC_AL  0       /* ALways (default) */
57#define ECC_TX  1       /* F0=True, F1=Don't care */
58#define ECC_FX  2       /* F0=False, F1=Don't care */
59#define ECC_XT  3       /* F0=Don't care, F1=True */
60#define ECC_XF  4       /* F0=Don't care, F1=False */
61#define ECC_TT  5       /* F0=True, F1=True */
62#define ECC_TF  6       /* F0=True, F1=False */
63#define ECC_RESERVED    7       /* reserved */
64#define ECC_MAX ECC_RESERVED
65
66extern const char *d30v_ecc_names[];
67
68/* condition code table for CMP and CMPU */
69extern const char *d30v_cc_names[];
70
71/* The opcode table is an array of struct d30v_opcode.  */
72struct d30v_opcode
73{
74  /* The opcode name.  */
75  const char *name;
76
77  /* the opcode */
78  int op1;      /* first part, "IALU1" for example */
79  int op2;      /* the rest of the opcode */
80
81  /* opcode format(s).  These numbers correspond to entries */
82  /* in the d30v_format_table */
83  unsigned char format[4];
84
85#define SHORT_M         1
86#define SHORT_M2        5       /* for ld2w and st2w */
87#define SHORT_A         9
88#define SHORT_B1        11
89#define SHORT_B2        12
90#define SHORT_B2r     13
91#define SHORT_B3      14
92#define SHORT_B3r     16
93#define SHORT_B3b     18
94#define SHORT_B3br    20
95#define SHORT_D1r     22
96#define SHORT_D2      24
97#define SHORT_D2r     26
98#define SHORT_D2Br    28
99#define SHORT_U       30      /* unary SHORT_A.  ABS for example */
100#define SHORT_F       31      /* SHORT_A with flag registers */
101#define SHORT_AF      33      /* SHORT_A with only the first register a flag register */
102#define SHORT_T       35      /* for trap instruction */
103#define SHORT_A5      36      /* SHORT_A with a 5-bit immediate instead of 6 */
104#define SHORT_CMP     38      /* special form for CMPcc */
105#define SHORT_CMPU    40      /* special form for CMPUcc */
106#define SHORT_A1      42      /* special form of SHORT_A for MACa opcodes where a=1 */
107#define SHORT_AA      44      /* SHORT_A with the first register an accumulator */
108#define SHORT_RA      46      /* SHORT_A with the second register an accumulator */
109#define SHORT_MODINC  48     
110#define SHORT_MODDEC  49
111#define SHORT_C1      50
112#define SHORT_C2      51
113#define SHORT_UF      52
114#define SHORT_A2      53
115#define SHORT_NONE    55      /* no operands */
116#define SHORT_AR      56      /* like SHORT_AA but only accept register as third parameter  */
117#define LONG          57
118#define LONG_U        58      /* unary LONG */
119#define LONG_Ur       59      /* LONG pc-relative */
120#define LONG_CMP      60      /* special form for CMPcc and CMPUcc */
121#define LONG_M        61      /* Memory long for ldb, stb */
122#define LONG_M2       62      /* Memory long for ld2w, st2w */
123#define LONG_2        63      /* LONG with 2 operands; jmptnz */
124#define LONG_2r       64      /* LONG with 2 operands; bratnz */
125#define LONG_2b       65      /* LONG_2 with modifier of 3 */
126#define LONG_2br      66      /* LONG_2r with modifier of 3 */
127#define LONG_D        67      /* for DJMPI */
128#define LONG_Dr       68      /* for DBRAI */
129#define LONG_Dbr      69      /* for repeati */
130
131  /* the execution unit(s) used */
132  int unit;
133#define EITHER  0
134#define IU      1
135#define MU      2
136#define EITHER_BUT_PREFER_MU 3
137
138  /* this field is used to decide if two instructions */
139  /* can be executed in parallel */
140  long flags_used;
141  long flags_set;
142#define FLAG_0          (1L<<0)
143#define FLAG_1          (1L<<1)
144#define FLAG_2          (1L<<2)
145#define FLAG_3          (1L<<3)
146#define FLAG_4          (1L<<4)         /* S (saturation) */
147#define FLAG_5          (1L<<5)         /* V (overflow) */
148#define FLAG_6          (1L<<6)         /* VA (accumulated overflow) */
149#define FLAG_7          (1L<<7)         /* C (carry/borrow) */
150#define FLAG_SM         (1L<<8)         /* SM (stack mode) */
151#define FLAG_RP         (1L<<9)         /* RP (repeat enable) */
152#define FLAG_CONTROL    (1L<<10)        /* control registers */
153#define FLAG_A0         (1L<<11)        /* A0 */
154#define FLAG_A1         (1L<<12)        /* A1 */
155#define FLAG_JMP        (1L<<13)        /* instruction is a branch */
156#define FLAG_JSR        (1L<<14)        /* subroutine call.  must be aligned */
157#define FLAG_MEM        (1L<<15)        /* reads/writes memory */
158#define FLAG_NOT_WITH_ADDSUBppp  (1L<<16) /* Old meaning: a 2 word 4 byter operation
159                                           New meaning: operation cannot be
160                                           combined in parallel with ADD/SUBppp. */
161#define FLAG_MUL16      (1L<<17)        /* 16 bit multiply */
162#define FLAG_MUL32      (1L<<18)        /* 32 bit multiply */
163#define FLAG_ADDSUBppp  (1L<<19)        /* ADDppp or SUBppp */
164#define FLAG_DELAY      (1L<<20)        /* This is a delayed branch or jump */
165#define FLAG_LKR        (1L<<21)        /* insn in left slot kills right slot */
166#define FLAG_CVVA       (FLAG_5|FLAG_6|FLAG_7)
167#define FLAG_C          FLAG_7
168#define FLAG_ALL        (FLAG_0 | \
169                         FLAG_1 | \
170                         FLAG_2 | \
171                         FLAG_3 | \
172                         FLAG_4 | \
173                         FLAG_5 | \
174                         FLAG_6 | \
175                         FLAG_7 | \
176                         FLAG_SM | \
177                         FLAG_RP | \
178                         FLAG_CONTROL)
179
180  int reloc_flag;
181#define RELOC_PCREL     1
182#define RELOC_ABS       2
183};
184
185extern const struct d30v_opcode d30v_opcode_table[];
186extern const int d30v_num_opcodes;
187
188/* The operands table is an array of struct d30v_operand.  */
189struct d30v_operand
190{
191  /* the length of the field */
192  int length;
193
194  /* The number of significant bits in the operand.  */
195  int bits;
196
197  /* position relative to Ra */
198  int position;
199
200  /* syntax flags.  */
201  long flags;
202};
203extern const struct d30v_operand d30v_operand_table[];
204
205/* Values defined for the flags field of a struct d30v_operand.  */
206
207/* this is the destination register; it will be modified */
208/* this is used by the optimizer */
209#define OPERAND_DEST    (1)
210
211/* number or symbol */
212#define OPERAND_NUM     (2)
213
214/* address or label */
215#define OPERAND_ADDR    (4)
216
217/* register */
218#define OPERAND_REG     (8)
219
220/* postincrement +  */
221#define OPERAND_PLUS    (0x10)
222
223/* postdecrement -  */
224#define OPERAND_MINUS   (0x20)
225
226/* signed number */
227#define OPERAND_SIGNED  (0x40)
228
229/* this operand must be shifted left by 3 */
230#define OPERAND_SHIFT   (0x80)
231
232/* flag register */
233#define OPERAND_FLAG    (0x100)
234
235/* control register  */
236#define OPERAND_CONTROL (0x200)
237
238/* accumulator */
239#define OPERAND_ACC     (0x400)
240
241/* @  */
242#define OPERAND_ATSIGN  (0x800)
243
244/* @(  */
245#define OPERAND_ATPAR   (0x1000)
246
247/* predecrement mode '@-sp'  */
248#define OPERAND_ATMINUS (0x2000)
249
250/* this operand changes the instruction name */
251/* for example, CPMcc, CMPUcc */
252#define OPERAND_NAME    (0x4000)
253
254/* fake operand for mvtsys and mvfsys */
255#define OPERAND_SPECIAL (0x8000)
256
257/* let the optimizer know that two registers are affected */
258#define OPERAND_2REG    (0x10000)
259
260/* This operand is pc-relative.  Note that repeati can have two immediate
261   operands, one of which is pcrel, the other (the IMM6U one) is not.  */
262#define OPERAND_PCREL   (0x20000)
263
264/* The format table is an array of struct d30v_format.  */
265struct d30v_format
266{
267  int   form;           /* SHORT_A, LONG, etc */
268  int   modifier;       /* two bit modifier following opcode */
269  unsigned char operands[5];
270};
271extern const struct d30v_format d30v_format_table[];
272
273
274/* an instruction is defined by an opcode and a format */
275/* for example, "add" has one opcode, but three different */
276/* formats, 2 SHORT_A forms and a LONG form. */
277struct d30v_insn
278{
279  struct d30v_opcode *op;       /* pointer to an entry in the opcode table */
280  struct d30v_format *form;     /* pointer to an entry in the format table */
281  int ecc;                      /* execution condition code */
282};
283
284/* an expressionS only has one register type, so we fake it */
285/* by setting high bits to indicate type */
286#define REGISTER_MASK   0xFF
287
288#endif /* D30V_H */
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