1c5dff60aSchristos /* cris.h -- Header file for CRIS opcode and register tables. 2*1424dfb3Schristos Copyright (C) 2000-2020 Free Software Foundation, Inc. 3c5dff60aSchristos Contributed by Axis Communications AB, Lund, Sweden. 4c5dff60aSchristos Originally written for GAS 1.38.1 by Mikael Asker. 5c5dff60aSchristos Updated, BFDized and GNUified by Hans-Peter Nilsson. 6c5dff60aSchristos 7c5dff60aSchristos This file is part of GAS, GDB and the GNU binutils. 8c5dff60aSchristos 9c5dff60aSchristos GAS, GDB, and GNU binutils is free software; you can redistribute it 10c5dff60aSchristos and/or modify it under the terms of the GNU General Public License as 11c5dff60aSchristos published by the Free Software Foundation; either version 3, or (at your 12c5dff60aSchristos option) any later version. 13c5dff60aSchristos 14c5dff60aSchristos GAS, GDB, and GNU binutils are distributed in the hope that they will be 15c5dff60aSchristos useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 16c5dff60aSchristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17c5dff60aSchristos GNU General Public License for more details. 18c5dff60aSchristos 19c5dff60aSchristos You should have received a copy of the GNU General Public License 20c5dff60aSchristos along with this program; if not, write to the Free Software 21c5dff60aSchristos Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 22c5dff60aSchristos MA 02110-1301, USA. */ 23c5dff60aSchristos 24c5dff60aSchristos #ifndef __CRIS_H_INCLUDED_ 25c5dff60aSchristos #define __CRIS_H_INCLUDED_ 26c5dff60aSchristos 27c5dff60aSchristos #if !defined(__STDC__) && !defined(const) 28c5dff60aSchristos #define const 29c5dff60aSchristos #endif 30c5dff60aSchristos 31c5dff60aSchristos 32c5dff60aSchristos /* Registers. */ 33c5dff60aSchristos #define MAX_REG (15) 34c5dff60aSchristos #define REG_SP (14) 35c5dff60aSchristos #define REG_PC (15) 36c5dff60aSchristos 37c5dff60aSchristos /* CPU version control of disassembly and assembly of instructions. 38c5dff60aSchristos May affect how the instruction is assembled, at least the size of 39c5dff60aSchristos immediate operands. */ 40c5dff60aSchristos enum cris_insn_version_usage 41c5dff60aSchristos { 42c5dff60aSchristos /* Any version. */ 43c5dff60aSchristos cris_ver_version_all=0, 44c5dff60aSchristos 45c5dff60aSchristos /* Indeterminate (intended for disassembly only, or obsolete). */ 46c5dff60aSchristos cris_ver_warning, 47c5dff60aSchristos 48c5dff60aSchristos /* Only for v0..3 (Etrax 1..4). */ 49c5dff60aSchristos cris_ver_v0_3, 50c5dff60aSchristos 51c5dff60aSchristos /* Only for v3 or higher (ETRAX 4 and beyond). */ 52c5dff60aSchristos cris_ver_v3p, 53c5dff60aSchristos 54c5dff60aSchristos /* Only for v8 (Etrax 100). */ 55c5dff60aSchristos cris_ver_v8, 56c5dff60aSchristos 57c5dff60aSchristos /* Only for v8 or higher (ETRAX 100, ETRAX 100 LX). */ 58c5dff60aSchristos cris_ver_v8p, 59c5dff60aSchristos 60c5dff60aSchristos /* Only for v0..10. FIXME: Not sure what to do with this. */ 61c5dff60aSchristos cris_ver_sim_v0_10, 62c5dff60aSchristos 63c5dff60aSchristos /* Only for v0..10. */ 64c5dff60aSchristos cris_ver_v0_10, 65c5dff60aSchristos 66c5dff60aSchristos /* Only for v3..10. (ETRAX 4, ETRAX 100 and ETRAX 100 LX). */ 67c5dff60aSchristos cris_ver_v3_10, 68c5dff60aSchristos 69c5dff60aSchristos /* Only for v8..10 (ETRAX 100 and ETRAX 100 LX). */ 70c5dff60aSchristos cris_ver_v8_10, 71c5dff60aSchristos 72c5dff60aSchristos /* Only for v10 (ETRAX 100 LX) and same series. */ 73c5dff60aSchristos cris_ver_v10, 74c5dff60aSchristos 75c5dff60aSchristos /* Only for v10 (ETRAX 100 LX) and same series. */ 76c5dff60aSchristos cris_ver_v10p, 77c5dff60aSchristos 78c5dff60aSchristos /* Only for v32 or higher (codename GUINNESS). 79c5dff60aSchristos Of course some or all these of may change to cris_ver_v32p if/when 80c5dff60aSchristos there's a new revision. */ 81c5dff60aSchristos cris_ver_v32p 82c5dff60aSchristos }; 83c5dff60aSchristos 84c5dff60aSchristos 85c5dff60aSchristos /* Special registers. */ 86c5dff60aSchristos struct cris_spec_reg 87c5dff60aSchristos { 88c5dff60aSchristos const char *const name; 89c5dff60aSchristos unsigned int number; 90c5dff60aSchristos 91c5dff60aSchristos /* The size of the register. */ 92c5dff60aSchristos unsigned int reg_size; 93c5dff60aSchristos 94c5dff60aSchristos /* What CPU version the special register of that name is implemented 95c5dff60aSchristos in. If cris_ver_warning, emit an unimplemented-warning. */ 96c5dff60aSchristos enum cris_insn_version_usage applicable_version; 97c5dff60aSchristos 98c5dff60aSchristos /* There might be a specific warning for using a special register 99c5dff60aSchristos here. */ 100c5dff60aSchristos const char *const warning; 101c5dff60aSchristos }; 102c5dff60aSchristos extern const struct cris_spec_reg cris_spec_regs[]; 103c5dff60aSchristos 104c5dff60aSchristos 105c5dff60aSchristos /* Support registers (kind of special too, but not named as such). */ 106c5dff60aSchristos struct cris_support_reg 107c5dff60aSchristos { 108c5dff60aSchristos const char *const name; 109c5dff60aSchristos unsigned int number; 110c5dff60aSchristos }; 111c5dff60aSchristos extern const struct cris_support_reg cris_support_regs[]; 112c5dff60aSchristos 113c5dff60aSchristos struct cris_cond15 114c5dff60aSchristos { 115c5dff60aSchristos /* The name of the condition. */ 116c5dff60aSchristos const char *const name; 117c5dff60aSchristos 118c5dff60aSchristos /* What CPU version this condition name applies to. */ 119c5dff60aSchristos enum cris_insn_version_usage applicable_version; 120c5dff60aSchristos }; 121c5dff60aSchristos extern const struct cris_cond15 cris_conds15[]; 122c5dff60aSchristos 123c5dff60aSchristos /* Opcode-dependent constants. */ 124c5dff60aSchristos #define AUTOINCR_BIT (0x04) 125c5dff60aSchristos 126c5dff60aSchristos /* Prefixes. */ 127c5dff60aSchristos #define BDAP_QUICK_OPCODE (0x0100) 128c5dff60aSchristos #define BDAP_QUICK_Z_BITS (0x0e00) 129c5dff60aSchristos 130c5dff60aSchristos #define BIAP_OPCODE (0x0540) 131c5dff60aSchristos #define BIAP_Z_BITS (0x0a80) 132c5dff60aSchristos 133c5dff60aSchristos #define DIP_OPCODE (0x0970) 134c5dff60aSchristos #define DIP_Z_BITS (0xf280) 135c5dff60aSchristos 136c5dff60aSchristos #define BDAP_INDIR_LOW (0x40) 137c5dff60aSchristos #define BDAP_INDIR_LOW_Z (0x80) 138c5dff60aSchristos #define BDAP_INDIR_HIGH (0x09) 139c5dff60aSchristos #define BDAP_INDIR_HIGH_Z (0x02) 140c5dff60aSchristos 141c5dff60aSchristos #define BDAP_INDIR_OPCODE (BDAP_INDIR_HIGH * 0x0100 + BDAP_INDIR_LOW) 142c5dff60aSchristos #define BDAP_INDIR_Z_BITS (BDAP_INDIR_HIGH_Z * 0x100 + BDAP_INDIR_LOW_Z) 143c5dff60aSchristos #define BDAP_PC_LOW (BDAP_INDIR_LOW + REG_PC) 144c5dff60aSchristos #define BDAP_INCR_HIGH (BDAP_INDIR_HIGH + AUTOINCR_BIT) 145c5dff60aSchristos 146c5dff60aSchristos /* No prefix must have this code for its "match" bits in the 147c5dff60aSchristos opcode-table. "BCC .+2" will do nicely. */ 148c5dff60aSchristos #define NO_CRIS_PREFIX 0 149c5dff60aSchristos 150c5dff60aSchristos /* Definitions for condition codes. */ 151c5dff60aSchristos #define CC_CC 0x0 152c5dff60aSchristos #define CC_HS 0x0 153c5dff60aSchristos #define CC_CS 0x1 154c5dff60aSchristos #define CC_LO 0x1 155c5dff60aSchristos #define CC_NE 0x2 156c5dff60aSchristos #define CC_EQ 0x3 157c5dff60aSchristos #define CC_VC 0x4 158c5dff60aSchristos #define CC_VS 0x5 159c5dff60aSchristos #define CC_PL 0x6 160c5dff60aSchristos #define CC_MI 0x7 161c5dff60aSchristos #define CC_LS 0x8 162c5dff60aSchristos #define CC_HI 0x9 163c5dff60aSchristos #define CC_GE 0xA 164c5dff60aSchristos #define CC_LT 0xB 165c5dff60aSchristos #define CC_GT 0xC 166c5dff60aSchristos #define CC_LE 0xD 167c5dff60aSchristos #define CC_A 0xE 168c5dff60aSchristos #define CC_EXT 0xF 169c5dff60aSchristos 170c5dff60aSchristos /* A table of strings "cc", "cs"... indexed with condition code 171c5dff60aSchristos values as above. */ 172c5dff60aSchristos extern const char *const cris_cc_strings[]; 173c5dff60aSchristos 174c5dff60aSchristos /* Bcc quick. */ 175c5dff60aSchristos #define BRANCH_QUICK_LOW (0) 176c5dff60aSchristos #define BRANCH_QUICK_HIGH (0) 177c5dff60aSchristos #define BRANCH_QUICK_OPCODE (BRANCH_QUICK_HIGH * 0x0100 + BRANCH_QUICK_LOW) 178c5dff60aSchristos #define BRANCH_QUICK_Z_BITS (0x0F00) 179c5dff60aSchristos 180c5dff60aSchristos /* BA quick. */ 181c5dff60aSchristos #define BA_QUICK_HIGH (BRANCH_QUICK_HIGH + CC_A * 0x10) 182c5dff60aSchristos #define BA_QUICK_OPCODE (BA_QUICK_HIGH * 0x100 + BRANCH_QUICK_LOW) 183c5dff60aSchristos 184c5dff60aSchristos /* Bcc [PC+]. */ 185c5dff60aSchristos #define BRANCH_PC_LOW (0xFF) 186c5dff60aSchristos #define BRANCH_INCR_HIGH (0x0D) 187c5dff60aSchristos #define BA_PC_INCR_OPCODE \ 188c5dff60aSchristos ((BRANCH_INCR_HIGH + CC_A * 0x10) * 0x0100 + BRANCH_PC_LOW) 189c5dff60aSchristos 190c5dff60aSchristos /* Jump. */ 191c5dff60aSchristos /* Note that old versions generated special register 8 (in high bits) 192c5dff60aSchristos and not-that-old versions recognized it as a jump-instruction. 193c5dff60aSchristos That opcode now belongs to JUMPU. */ 194c5dff60aSchristos #define JUMP_INDIR_OPCODE (0x0930) 195c5dff60aSchristos #define JUMP_INDIR_Z_BITS (0xf2c0) 196c5dff60aSchristos #define JUMP_PC_INCR_OPCODE \ 197c5dff60aSchristos (JUMP_INDIR_OPCODE + AUTOINCR_BIT * 0x0100 + REG_PC) 198c5dff60aSchristos 199c5dff60aSchristos #define MOVE_M_TO_PREG_OPCODE 0x0a30 200c5dff60aSchristos #define MOVE_M_TO_PREG_ZBITS 0x01c0 201c5dff60aSchristos 202c5dff60aSchristos /* BDAP.D N,PC. */ 203c5dff60aSchristos #define MOVE_PC_INCR_OPCODE_PREFIX \ 204c5dff60aSchristos (((BDAP_INCR_HIGH | (REG_PC << 4)) << 8) | BDAP_PC_LOW | (2 << 4)) 205c5dff60aSchristos #define MOVE_PC_INCR_OPCODE_SUFFIX \ 206c5dff60aSchristos (MOVE_M_TO_PREG_OPCODE | REG_PC | (AUTOINCR_BIT << 8)) 207c5dff60aSchristos 208c5dff60aSchristos #define JUMP_PC_INCR_OPCODE_V32 (0x0DBF) 209c5dff60aSchristos 210c5dff60aSchristos /* BA DWORD (V32). */ 211c5dff60aSchristos #define BA_DWORD_OPCODE (0x0EBF) 212c5dff60aSchristos 213c5dff60aSchristos /* Nop. */ 214c5dff60aSchristos #define NOP_OPCODE (0x050F) 215c5dff60aSchristos #define NOP_Z_BITS (0xFFFF ^ NOP_OPCODE) 216c5dff60aSchristos 217c5dff60aSchristos #define NOP_OPCODE_V32 (0x05B0) 218c5dff60aSchristos #define NOP_Z_BITS_V32 (0xFFFF ^ NOP_OPCODE_V32) 219c5dff60aSchristos 220c5dff60aSchristos /* For the compatibility mode, let's use "MOVE R0,P0". Doesn't affect 221c5dff60aSchristos registers or flags. Unfortunately shuts off interrupts for one cycle 222c5dff60aSchristos for < v32, but there doesn't seem to be any alternative without that 223c5dff60aSchristos effect. */ 224c5dff60aSchristos #define NOP_OPCODE_COMMON (0x630) 225c5dff60aSchristos #define NOP_OPCODE_ZBITS_COMMON (0xffff & ~NOP_OPCODE_COMMON) 226c5dff60aSchristos 227c5dff60aSchristos /* LAPC.D */ 228c5dff60aSchristos #define LAPC_DWORD_OPCODE (0x0D7F) 229c5dff60aSchristos #define LAPC_DWORD_Z_BITS (0x0fff & ~LAPC_DWORD_OPCODE) 230c5dff60aSchristos 231c5dff60aSchristos /* Structure of an opcode table entry. */ 232c5dff60aSchristos enum cris_imm_oprnd_size_type 233c5dff60aSchristos { 234c5dff60aSchristos /* No size is applicable. */ 235c5dff60aSchristos SIZE_NONE, 236c5dff60aSchristos 237c5dff60aSchristos /* Always 32 bits. */ 238c5dff60aSchristos SIZE_FIX_32, 239c5dff60aSchristos 240c5dff60aSchristos /* Indicated by size of special register. */ 241c5dff60aSchristos SIZE_SPEC_REG, 242c5dff60aSchristos 243c5dff60aSchristos /* Indicated by size field, signed. */ 244c5dff60aSchristos SIZE_FIELD_SIGNED, 245c5dff60aSchristos 246c5dff60aSchristos /* Indicated by size field, unsigned. */ 247c5dff60aSchristos SIZE_FIELD_UNSIGNED, 248c5dff60aSchristos 249c5dff60aSchristos /* Indicated by size field, no sign implied. */ 250c5dff60aSchristos SIZE_FIELD 251c5dff60aSchristos }; 252c5dff60aSchristos 253c5dff60aSchristos /* For GDB. FIXME: Is this the best way to handle opcode 254c5dff60aSchristos interpretation? */ 255c5dff60aSchristos enum cris_op_type 256c5dff60aSchristos { 257c5dff60aSchristos cris_not_implemented_op = 0, 258c5dff60aSchristos cris_abs_op, 259c5dff60aSchristos cris_addi_op, 260c5dff60aSchristos cris_asr_op, 261c5dff60aSchristos cris_asrq_op, 262c5dff60aSchristos cris_ax_ei_setf_op, 263c5dff60aSchristos cris_bdap_prefix, 264c5dff60aSchristos cris_biap_prefix, 265c5dff60aSchristos cris_break_op, 266c5dff60aSchristos cris_btst_nop_op, 267c5dff60aSchristos cris_clearf_di_op, 268c5dff60aSchristos cris_dip_prefix, 269c5dff60aSchristos cris_dstep_logshift_mstep_neg_not_op, 270c5dff60aSchristos cris_eight_bit_offset_branch_op, 271c5dff60aSchristos cris_move_mem_to_reg_movem_op, 272c5dff60aSchristos cris_move_reg_to_mem_movem_op, 273c5dff60aSchristos cris_move_to_preg_op, 274c5dff60aSchristos cris_muls_op, 275c5dff60aSchristos cris_mulu_op, 276c5dff60aSchristos cris_none_reg_mode_add_sub_cmp_and_or_move_op, 277c5dff60aSchristos cris_none_reg_mode_clear_test_op, 278c5dff60aSchristos cris_none_reg_mode_jump_op, 279c5dff60aSchristos cris_none_reg_mode_move_from_preg_op, 280c5dff60aSchristos cris_quick_mode_add_sub_op, 281c5dff60aSchristos cris_quick_mode_and_cmp_move_or_op, 282c5dff60aSchristos cris_quick_mode_bdap_prefix, 283c5dff60aSchristos cris_reg_mode_add_sub_cmp_and_or_move_op, 284c5dff60aSchristos cris_reg_mode_clear_op, 285c5dff60aSchristos cris_reg_mode_jump_op, 286c5dff60aSchristos cris_reg_mode_move_from_preg_op, 287c5dff60aSchristos cris_reg_mode_test_op, 288c5dff60aSchristos cris_scc_op, 289c5dff60aSchristos cris_sixteen_bit_offset_branch_op, 290c5dff60aSchristos cris_three_operand_add_sub_cmp_and_or_op, 291c5dff60aSchristos cris_three_operand_bound_op, 292c5dff60aSchristos cris_two_operand_bound_op, 293c5dff60aSchristos cris_xor_op 294c5dff60aSchristos }; 295c5dff60aSchristos 296c5dff60aSchristos struct cris_opcode 297c5dff60aSchristos { 298c5dff60aSchristos /* The name of the insn. */ 299c5dff60aSchristos const char *name; 300c5dff60aSchristos 301c5dff60aSchristos /* Bits that must be 1 for a match. */ 302c5dff60aSchristos unsigned int match; 303c5dff60aSchristos 304c5dff60aSchristos /* Bits that must be 0 for a match. */ 305c5dff60aSchristos unsigned int lose; 306c5dff60aSchristos 307c5dff60aSchristos /* See the table in "opcodes/cris-opc.c". */ 308c5dff60aSchristos const char *args; 309c5dff60aSchristos 310c5dff60aSchristos /* Nonzero if this is a delayed branch instruction. */ 311c5dff60aSchristos char delayed; 312c5dff60aSchristos 313c5dff60aSchristos /* Size of immediate operands. */ 314c5dff60aSchristos enum cris_imm_oprnd_size_type imm_oprnd_size; 315c5dff60aSchristos 316c5dff60aSchristos /* Indicates which version this insn was first implemented in. */ 317c5dff60aSchristos enum cris_insn_version_usage applicable_version; 318c5dff60aSchristos 319c5dff60aSchristos /* What kind of operation this is. */ 320c5dff60aSchristos enum cris_op_type op; 321c5dff60aSchristos }; 322c5dff60aSchristos extern const struct cris_opcode cris_opcodes[]; 323c5dff60aSchristos 324c5dff60aSchristos 325c5dff60aSchristos /* These macros are for the target-specific flags in disassemble_info 326c5dff60aSchristos used at disassembly. */ 327c5dff60aSchristos 328c5dff60aSchristos /* This insn accesses memory. This flag is more trustworthy than 329c5dff60aSchristos checking insn_type for "dis_dref" which does not work for 330c5dff60aSchristos e.g. "JSR [foo]". */ 331c5dff60aSchristos #define CRIS_DIS_FLAG_MEMREF (1 << 0) 332c5dff60aSchristos 333c5dff60aSchristos /* The "target" field holds a register number. */ 334c5dff60aSchristos #define CRIS_DIS_FLAG_MEM_TARGET_IS_REG (1 << 1) 335c5dff60aSchristos 336c5dff60aSchristos /* The "target2" field holds a register number; add it to "target". */ 337c5dff60aSchristos #define CRIS_DIS_FLAG_MEM_TARGET2_IS_REG (1 << 2) 338c5dff60aSchristos 339c5dff60aSchristos /* Yet another add-on: the register in "target2" must be multiplied 340c5dff60aSchristos by 2 before adding to "target". */ 341c5dff60aSchristos #define CRIS_DIS_FLAG_MEM_TARGET2_MULT2 (1 << 3) 342c5dff60aSchristos 343c5dff60aSchristos /* Yet another add-on: the register in "target2" must be multiplied 344c5dff60aSchristos by 4 (mutually exclusive with .._MULT2). */ 345c5dff60aSchristos #define CRIS_DIS_FLAG_MEM_TARGET2_MULT4 (1 << 4) 346c5dff60aSchristos 347c5dff60aSchristos /* The register in "target2" is an indirect memory reference (of the 348c5dff60aSchristos register there), add to "target". Assumed size is dword (mutually 349c5dff60aSchristos exclusive with .._MULT[24]). */ 350c5dff60aSchristos #define CRIS_DIS_FLAG_MEM_TARGET2_MEM (1 << 5) 351c5dff60aSchristos 352c5dff60aSchristos /* Add-on to CRIS_DIS_FLAG_MEM_TARGET2_MEM; the memory access is "byte"; 353c5dff60aSchristos sign-extended before adding to "target". */ 354c5dff60aSchristos #define CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE (1 << 6) 355c5dff60aSchristos 356c5dff60aSchristos /* Add-on to CRIS_DIS_FLAG_MEM_TARGET2_MEM; the memory access is "word"; 357c5dff60aSchristos sign-extended before adding to "target". */ 358c5dff60aSchristos #define CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD (1 << 7) 359c5dff60aSchristos 360c5dff60aSchristos #endif /* __CRIS_H_INCLUDED_ */ 361c5dff60aSchristos 362c5dff60aSchristos /* 363c5dff60aSchristos * Local variables: 364c5dff60aSchristos * eval: (c-set-style "gnu") 365c5dff60aSchristos * indent-tabs-mode: t 366c5dff60aSchristos * End: 367c5dff60aSchristos */ 368