opcodes/pru-opc.c

   1 /* TI PRU opcode list.
   2    Copyright (C) 2014-2020 Free Software Foundation, Inc.
   3    Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
   4
   5    This file is part of the GNU opcodes library.
   6
   7    This library 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, or (at your option)
  10    any later version.
  11
  12    It is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this file; see the file COPYING.  If not, write to the
  19    Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 /* Source:
  23    http://processors.wiki.ti.com/index.php/Programmable_Realtime_Unit  */
  24
  25 #include "sysdep.h"
  26 #include <stdio.h>
  27 #include "opcode/pru.h"
  28
  29 /* Register string table.  */
  30
  31 #define DECLARE_REG(name, index)                \
  32   { #name ".b0", (index), RSEL_7_0 },           \
  33   { #name ".b1", (index), RSEL_15_8 },          \
  34   { #name ".b2", (index), RSEL_23_16 },         \
  35   { #name ".b3", (index), RSEL_31_24 },         \
  36   { #name ".w0", (index), RSEL_15_0 },          \
  37   { #name ".w1", (index), RSEL_23_8 },          \
  38   { #name ".w2", (index), RSEL_31_16 },         \
  39   { #name , (index), RSEL_31_0 }
  40
  41 const struct pru_reg pru_regs[] = {
  42   /* Standard register names.  */
  43   DECLARE_REG (r0, 0),
  44   DECLARE_REG (r1, 1),
  45   DECLARE_REG (sp, 2),          /* Stack pointer.  */
  46   DECLARE_REG (ra, 3),          /* Return address.  */
  47   DECLARE_REG (fp, 4),          /* Frame pointer.  */
  48   DECLARE_REG (r5, 5),
  49   DECLARE_REG (r6, 6),
  50   DECLARE_REG (r7, 7),
  51   DECLARE_REG (r8, 8),
  52   DECLARE_REG (r9, 9),
  53   DECLARE_REG (r10, 10),
  54   DECLARE_REG (r11, 11),
  55   DECLARE_REG (r12, 12),
  56   DECLARE_REG (r13, 13),
  57   DECLARE_REG (r14, 14),
  58   DECLARE_REG (r15, 15),
  59   DECLARE_REG (r16, 16),
  60   DECLARE_REG (r17, 17),
  61   DECLARE_REG (r18, 18),
  62   DECLARE_REG (r19, 19),
  63   DECLARE_REG (r20, 20),
  64   DECLARE_REG (r21, 21),
  65   DECLARE_REG (r22, 22),
  66   DECLARE_REG (r23, 23),
  67   DECLARE_REG (r24, 24),
  68   DECLARE_REG (r25, 25),
  69   DECLARE_REG (r26, 26),
  70   DECLARE_REG (r27, 27),
  71   DECLARE_REG (r28, 28),
  72   DECLARE_REG (r29, 29),
  73   DECLARE_REG (r30, 30),
  74   DECLARE_REG (r31, 31),
  75
  76   /* Alternative names for special registers.  */
  77   DECLARE_REG (r2, 2),
  78   DECLARE_REG (r3, 3),
  79   DECLARE_REG (r4, 4)
  80 };
  81
  82 #define PRU_NUM_REGS \
  83        ((sizeof pru_regs) / (sizeof (pru_regs[0])))
  84 const int pru_num_regs = PRU_NUM_REGS;
  85
  86 #undef PRU_NUM_REGS
  87
  88 /* This is the opcode table used by the PRU GNU as and disassembler.  */
  89 const struct pru_opcode pru_opcodes[] =
  90 {
  91   /* { name, args,
  92        match, mask, pinfo, overflow_msg } */
  93 #define DECLARE_FORMAT1_OPCODE(str, subop) \
  94   { #str, prui_ ## str, "d,s,b", \
  95     OP_MATCH_ ## subop, OP_MASK_FMT1_OP | OP_MASK_SUBOP, 0, \
  96     unsigned_immed8_overflow }
  97
  98   DECLARE_FORMAT1_OPCODE (add, ADD),
  99   DECLARE_FORMAT1_OPCODE (adc, ADC),
 100   DECLARE_FORMAT1_OPCODE (sub, SUB),
 101   DECLARE_FORMAT1_OPCODE (suc, SUC),
 102   DECLARE_FORMAT1_OPCODE (lsl, LSL),
 103   DECLARE_FORMAT1_OPCODE (lsr, LSR),
 104   DECLARE_FORMAT1_OPCODE (rsb, RSB),
 105   DECLARE_FORMAT1_OPCODE (rsc, RSC),
 106   DECLARE_FORMAT1_OPCODE (and, AND),
 107   DECLARE_FORMAT1_OPCODE (or, OR),
 108   DECLARE_FORMAT1_OPCODE (xor, XOR),
 109   DECLARE_FORMAT1_OPCODE (min, MIN),
 110   DECLARE_FORMAT1_OPCODE (max, MAX),
 111   DECLARE_FORMAT1_OPCODE (clr, CLR),
 112   DECLARE_FORMAT1_OPCODE (set, SET),
 113
 114   { "not", prui_not, "d,s",
 115    OP_MATCH_NOT | OP_MASK_IO,
 116    OP_MASK_FMT1_OP | OP_MASK_SUBOP | OP_MASK_IO, 0, no_overflow},
 117
 118   { "jmp", prui_jmp, "j",
 119    OP_MATCH_JMP, OP_MASK_FMT2_OP | OP_MASK_SUBOP, 0, unsigned_immed16_overflow},
 120   { "jal", prui_jal, "d,j",
 121    OP_MATCH_JAL, OP_MASK_FMT2_OP | OP_MASK_SUBOP, 0, unsigned_immed16_overflow},
 122   { "ldi", prui_ldi, "d,W",
 123    OP_MATCH_LDI, OP_MASK_FMT2_OP | OP_MASK_SUBOP, 0, unsigned_immed16_overflow},
 124   { "halt", prui_halt, "",
 125    OP_MATCH_HALT, OP_MASK_FMT2_OP | OP_MASK_SUBOP, 0, no_overflow},
 126   { "slp", prui_slp, "w",
 127    OP_MATCH_SLP, OP_MASK_FMT2_OP | OP_MASK_SUBOP, 0, no_overflow},
 128
 129   { "xin", prui_xin, "x,D,n",
 130    OP_MATCH_XIN, OP_MASK_XFR_OP, 0, unsigned_immed8_overflow},
 131   { "xout", prui_xout, "x,D,n",
 132    OP_MATCH_XOUT, OP_MASK_XFR_OP, 0, unsigned_immed8_overflow},
 133   { "xchg", prui_xchg, "x,D,n",
 134    OP_MATCH_XCHG, OP_MASK_XFR_OP, 0, unsigned_immed8_overflow},
 135   { "sxin", prui_sxin, "x,D,n",
 136    OP_MATCH_SXIN, OP_MASK_XFR_OP, 0, unsigned_immed8_overflow},
 137   { "sxout", prui_sxout, "x,D,n",
 138    OP_MATCH_SXOUT, OP_MASK_XFR_OP, 0, unsigned_immed8_overflow},
 139   { "sxchg", prui_sxchg, "x,D,n",
 140    OP_MATCH_SXCHG, OP_MASK_XFR_OP, 0, unsigned_immed8_overflow},
 141
 142   { "loop", prui_loop, "O,B",
 143    OP_MATCH_LOOP, OP_MASK_LOOP_OP, 0, unsigned_immed8_overflow},
 144   { "iloop", prui_loop, "O,B",
 145    OP_MATCH_ILOOP, OP_MASK_LOOP_OP, 0, unsigned_immed8_overflow},
 146
 147   { "qbgt", prui_qbgt, "o,s,b",
 148    OP_MATCH_QBGT, OP_MASK_FMT4_OP | OP_MASK_CMP, 0, qbranch_target_overflow},
 149   { "qbge", prui_qbge, "o,s,b",
 150    OP_MATCH_QBGE, OP_MASK_FMT4_OP | OP_MASK_CMP, 0, qbranch_target_overflow},
 151   { "qblt", prui_qblt, "o,s,b",
 152    OP_MATCH_QBLT, OP_MASK_FMT4_OP | OP_MASK_CMP, 0, qbranch_target_overflow},
 153   { "qble", prui_qble, "o,s,b",
 154    OP_MATCH_QBLE, OP_MASK_FMT4_OP | OP_MASK_CMP, 0, qbranch_target_overflow},
 155   { "qbeq", prui_qbeq, "o,s,b",
 156    OP_MATCH_QBEQ, OP_MASK_FMT4_OP | OP_MASK_CMP, 0, qbranch_target_overflow},
 157   { "qbne", prui_qbne, "o,s,b",
 158    OP_MATCH_QBNE, OP_MASK_FMT4_OP | OP_MASK_CMP, 0, qbranch_target_overflow},
 159   { "qba", prui_qba, "o",
 160    OP_MATCH_QBA, OP_MASK_FMT4_OP | OP_MASK_CMP, 0, qbranch_target_overflow},
 161
 162   { "qbbs", prui_qbbs, "o,s,b",
 163    OP_MATCH_QBBS, OP_MASK_FMT5_OP | OP_MASK_BCMP, 0, qbranch_target_overflow},
 164   { "qbbc", prui_qbbc, "o,s,b",
 165    OP_MATCH_QBBC, OP_MASK_FMT5_OP | OP_MASK_BCMP, 0, qbranch_target_overflow},
 166
 167   { "lbbo", prui_lbbo, "D,S,b,l",
 168    OP_MATCH_LBBO, OP_MASK_FMT6AB_OP | OP_MASK_LOADSTORE, 0,
 169    unsigned_immed8_overflow},
 170   { "sbbo", prui_sbbo, "D,S,b,l",
 171    OP_MATCH_SBBO, OP_MASK_FMT6AB_OP | OP_MASK_LOADSTORE, 0,
 172    unsigned_immed8_overflow},
 173   { "lbco", prui_lbco, "D,c,b,l",
 174    OP_MATCH_LBCO, OP_MASK_FMT6CD_OP | OP_MASK_LOADSTORE, 0,
 175    unsigned_immed8_overflow},
 176   { "sbco", prui_sbco, "D,c,b,l",
 177    OP_MATCH_SBCO, OP_MASK_FMT6CD_OP | OP_MASK_LOADSTORE, 0,
 178    unsigned_immed8_overflow},
 179
 180   /* Fill in the default values for the real-instruction arguments.
 181      The assembler will not do it!  */
 182   { "nop", prui_or, "",
 183    OP_MATCH_OR
 184      | (RSEL_31_0 << OP_SH_RS2SEL) | (0 << OP_SH_RS2)
 185      | (RSEL_31_0 << OP_SH_RS1SEL) | (0 << OP_SH_RS1)
 186      | (RSEL_31_0 << OP_SH_RDSEL) | (0 << OP_SH_RD),
 187    OP_MASK_FMT1_OP | OP_MASK_SUBOP
 188      | OP_MASK_RS2SEL | OP_MASK_RS2 | OP_MASK_RS1SEL | OP_MASK_RS1
 189      | OP_MASK_RDSEL | OP_MASK_RD | OP_MASK_IO,
 190    PRU_INSN_MACRO, no_overflow},
 191   { "mov", prui_or, "d,s",
 192    OP_MATCH_OR | (0 << OP_SH_IMM8) | OP_MASK_IO,
 193    OP_MASK_FMT1_OP | OP_MASK_SUBOP | OP_MASK_IMM8 | OP_MASK_IO,
 194    PRU_INSN_MACRO, no_overflow},
 195   { "ret", prui_jmp, "",
 196    OP_MATCH_JMP
 197      | (RSEL_31_16 << OP_SH_RS2SEL) | (3 << OP_SH_RS2),
 198    OP_MASK_FMT2_OP | OP_MASK_SUBOP
 199      | OP_MASK_RS2SEL | OP_MASK_RS2 | OP_MASK_IO,
 200    PRU_INSN_MACRO, unsigned_immed16_overflow},
 201   { "call", prui_jal, "j",
 202    OP_MATCH_JAL
 203      | (RSEL_31_16 << OP_SH_RDSEL) | (3 << OP_SH_RD),
 204    OP_MASK_FMT2_OP | OP_MASK_SUBOP
 205      | OP_MASK_RDSEL | OP_MASK_RD,
 206    PRU_INSN_MACRO, unsigned_immed16_overflow},
 207
 208   { "wbc", prui_qbbs, "s,b",
 209    OP_MATCH_QBBS | (0 << OP_SH_BROFF98) | (0 << OP_SH_BROFF70),
 210    OP_MASK_FMT5_OP | OP_MASK_BCMP | OP_MASK_BROFF,
 211    PRU_INSN_MACRO, qbranch_target_overflow},
 212   { "wbs", prui_qbbc, "s,b",
 213    OP_MATCH_QBBC | (0 << OP_SH_BROFF98) | (0 << OP_SH_BROFF70),
 214    OP_MASK_FMT5_OP | OP_MASK_BCMP | OP_MASK_BROFF,
 215    PRU_INSN_MACRO, qbranch_target_overflow},
 216
 217   { "fill", prui_xin, "D,n",
 218    OP_MATCH_XIN | (254 << OP_SH_XFR_WBA),
 219    OP_MASK_XFR_OP | OP_MASK_XFR_WBA,
 220    PRU_INSN_MACRO, unsigned_immed8_overflow},
 221   { "zero", prui_xin, "D,n",
 222    OP_MATCH_XIN | (255 << OP_SH_XFR_WBA),
 223    OP_MASK_XFR_OP | OP_MASK_XFR_WBA,
 224    PRU_INSN_MACRO, unsigned_immed8_overflow},
 225
 226   { "ldi32", prui_ldi, "R,i",
 227    OP_MATCH_LDI, OP_MASK_FMT2_OP | OP_MASK_SUBOP,
 228    PRU_INSN_LDI32, unsigned_immed32_overflow},
 229 };
 230
 231 #define PRU_NUM_OPCODES \
 232        ((sizeof pru_opcodes) / (sizeof (pru_opcodes[0])))
 233 const int bfd_pru_num_opcodes = PRU_NUM_OPCODES;
 234
 235 #undef PRU_NUM_OPCODES