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Diffstat (limited to 'include/opcode/nios2.h')
| -rw-r--r-- | include/opcode/nios2.h | 522 |
1 files changed, 0 insertions, 522 deletions
diff --git a/include/opcode/nios2.h b/include/opcode/nios2.h deleted file mode 100644 index aa6709819..000000000 --- a/include/opcode/nios2.h +++ /dev/null @@ -1,522 +0,0 @@ -/* Nios II opcode list for GAS, the GNU assembler. - Copyright (C) 2012, 2013 Free Software Foundation, Inc. - Contributed by Nigel Gray (ngray@altera.com). - Contributed by Mentor Graphics, Inc. - - This file is part of GAS, the GNU Assembler, and GDB, the GNU disassembler. - - GAS/GDB is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3, or (at your option) - any later version. - - GAS/GDB is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GAS or GDB; see the file COPYING3. If not, write to - the Free Software Foundation, 51 Franklin Street - Fifth Floor, - Boston, MA 02110-1301, USA. */ - -#ifndef _NIOS2_H_ -#define _NIOS2_H_ - -#include "bfd.h" - -/**************************************************************************** - * This file contains structures, bit masks and shift counts used - * by the GNU toolchain to define the Nios II instruction set and - * access various opcode fields. - ****************************************************************************/ - -/* Identify different overflow situations for error messages. */ -enum overflow_type -{ - call_target_overflow = 0, - branch_target_overflow, - address_offset_overflow, - signed_immed16_overflow, - unsigned_immed16_overflow, - unsigned_immed5_overflow, - custom_opcode_overflow, - no_overflow -}; - -/* This structure holds information for a particular instruction. - - The args field is a string describing the operands. The following - letters can appear in the args: - c - a 5-bit control register index - d - a 5-bit destination register index - s - a 5-bit left source register index - t - a 5-bit right source register index - i - a 16-bit signed immediate - u - a 16-bit unsigned immediate - o - a 16-bit signed program counter relative offset - j - a 5-bit unsigned immediate - b - a 5-bit break instruction constant - l - a 8-bit custom instruction constant - m - a 26-bit unsigned immediate - Literal ',', '(', and ')' characters may also appear in the args as - delimiters. - - The pinfo field is INSN_MACRO for a macro. Otherwise, it is a collection - of bits describing the instruction, notably any relevant hazard - information. - - When assembling, the match field contains the opcode template, which - is modified by the arguments to produce the actual opcode - that is emitted. If pinfo is INSN_MACRO, then this is 0. - - If pinfo is INSN_MACRO, the mask field stores the macro identifier. - Otherwise this is a bit mask for the relevant portions of the opcode - when disassembling. If the actual opcode anded with the match field - equals the opcode field, then we have found the correct instruction. */ - -struct nios2_opcode -{ - const char *name; /* The name of the instruction. */ - const char *args; /* A string describing the arguments for this - instruction. */ - const char *args_test; /* Like args, but with an extra argument for - the expected opcode. */ - unsigned long num_args; /* The number of arguments the instruction - takes. */ - unsigned long match; /* The basic opcode for the instruction. */ - unsigned long mask; /* Mask for the opcode field of the - instruction. */ - unsigned long pinfo; /* Is this a real instruction or instruction - macro? */ - enum overflow_type overflow_msg; /* Used to generate informative - message when fixup overflows. */ -}; - -/* This value is used in the nios2_opcode.pinfo field to indicate that the - instruction is a macro or pseudo-op. This requires special treatment by - the assembler, and is used by the disassembler to determine whether to - check for a nop. */ -#define NIOS2_INSN_MACRO 0x80000000 -#define NIOS2_INSN_MACRO_MOV 0x80000001 -#define NIOS2_INSN_MACRO_MOVI 0x80000002 -#define NIOS2_INSN_MACRO_MOVIA 0x80000004 - -#define NIOS2_INSN_RELAXABLE 0x40000000 -#define NIOS2_INSN_UBRANCH 0x00000010 -#define NIOS2_INSN_CBRANCH 0x00000020 -#define NIOS2_INSN_CALL 0x00000040 - -#define NIOS2_INSN_ADDI 0x00000080 -#define NIOS2_INSN_ANDI 0x00000100 -#define NIOS2_INSN_ORI 0x00000200 -#define NIOS2_INSN_XORI 0x00000400 - - -/* Associates a register name ($6) with a 5-bit index (eg 6). */ -struct nios2_reg -{ - const char *name; - const int index; -}; - - -/* These are bit masks and shift counts for accessing the various - fields of a Nios II instruction. */ - -/* Macros for getting and setting an instruction field. */ -#define GET_INSN_FIELD(X, i) \ - (((i) & OP_MASK_##X) >> OP_SH_##X) -#define SET_INSN_FIELD(X, i, j) \ - ((i) = (((i) & ~OP_MASK_##X) | (((j) << OP_SH_##X) & OP_MASK_##X))) - -/* Instruction field definitions. */ -#define IW_A_LSB 27 -#define IW_A_MSB 31 -#define IW_A_SZ 5 -#define IW_A_MASK 0x1f - -#define IW_B_LSB 22 -#define IW_B_MSB 26 -#define IW_B_SZ 5 -#define IW_B_MASK 0x1f - -#define IW_C_LSB 17 -#define IW_C_MSB 21 -#define IW_C_SZ 5 -#define IW_C_MASK 0x1f - -#define IW_IMM16_LSB 6 -#define IW_IMM16_MSB 21 -#define IW_IMM16_SZ 16 -#define IW_IMM16_MASK 0xffff - -#define IW_IMM26_LSB 6 -#define IW_IMM26_MSB 31 -#define IW_IMM26_SZ 26 -#define IW_IMM26_MASK 0x3ffffff - -#define IW_OP_LSB 0 -#define IW_OP_MSB 5 -#define IW_OP_SZ 6 -#define IW_OP_MASK 0x3f - -#define IW_OPX_LSB 11 -#define IW_OPX_MSB 16 -#define IW_OPX_SZ 6 -#define IW_OPX_MASK 0x3f - -#define IW_SHIFT_IMM5_LSB 6 -#define IW_SHIFT_IMM5_MSB 10 -#define IW_SHIFT_IMM5_SZ 5 -#define IW_SHIFT_IMM5_MASK 0x1f - -#define IW_CONTROL_REGNUM_LSB 6 -#define IW_CONTROL_REGNUM_MSB 9 -#define IW_CONTROL_REGNUM_SZ 4 -#define IW_CONTROL_REGNUM_MASK 0xf - -/* Operator mask and shift. */ -#define OP_MASK_OP (IW_OP_MASK << IW_OP_LSB) -#define OP_SH_OP IW_OP_LSB - -/* Masks and shifts for I-type instructions. */ -#define OP_MASK_IOP (IW_OP_MASK << IW_OP_LSB) -#define OP_SH_IOP IW_OP_LSB - -#define OP_MASK_IMM16 (IW_IMM16_MASK << IW_IMM16_LSB) -#define OP_SH_IMM16 IW_IMM16_LSB - -#define OP_MASK_IRD (IW_B_MASK << IW_B_LSB) -#define OP_SH_IRD IW_B_LSB /* The same as T for I-type. */ - -#define OP_MASK_IRT (IW_B_MASK << IW_B_LSB) -#define OP_SH_IRT IW_B_LSB - -#define OP_MASK_IRS (IW_A_MASK << IW_A_LSB) -#define OP_SH_IRS IW_A_LSB - -/* Masks and shifts for R-type instructions. */ -#define OP_MASK_ROP (IW_OP_MASK << IW_OP_LSB) -#define OP_SH_ROP IW_OP_LSB - -#define OP_MASK_ROPX (IW_OPX_MASK << IW_OPX_LSB) -#define OP_SH_ROPX IW_OPX_LSB - -#define OP_MASK_RRD (IW_C_MASK << IW_C_LSB) -#define OP_SH_RRD IW_C_LSB - -#define OP_MASK_RRT (IW_B_MASK << IW_B_LSB) -#define OP_SH_RRT IW_B_LSB - -#define OP_MASK_RRS (IW_A_MASK << IW_A_LSB) -#define OP_SH_RRS IW_A_LSB - -/* Masks and shifts for J-type instructions. */ -#define OP_MASK_JOP (IW_OP_MASK << IW_OP_LSB) -#define OP_SH_JOP IW_OP_LSB - -#define OP_MASK_IMM26 (IW_IMM26_MASK << IW_IMM26_LSB) -#define OP_SH_IMM26 IW_IMM26_LSB - -/* Masks and shifts for CTL instructions. */ -#define OP_MASK_RCTL 0x000007c0 -#define OP_SH_RCTL 6 - -/* Break instruction imm5 field. */ -#define OP_MASK_TRAP_IMM5 0x000007c0 -#define OP_SH_TRAP_IMM5 6 - -/* Instruction imm5 field. */ -#define OP_MASK_IMM5 (IW_SHIFT_IMM5_MASK << IW_SHIFT_IMM5_LSB) -#define OP_SH_IMM5 IW_SHIFT_IMM5_LSB - -/* Cache operation fields (type j,i(s)). */ -#define OP_MASK_CACHE_OPX (IW_B_MASK << IW_B_LSB) -#define OP_SH_CACHE_OPX IW_B_LSB -#define OP_MASK_CACHE_RRS (IW_A_MASK << IW_A_LSB) -#define OP_SH_CACHE_RRS IW_A_LSB - -/* Custom instruction masks. */ -#define OP_MASK_CUSTOM_A 0x00010000 -#define OP_SH_CUSTOM_A 16 - -#define OP_MASK_CUSTOM_B 0x00008000 -#define OP_SH_CUSTOM_B 15 - -#define OP_MASK_CUSTOM_C 0x00004000 -#define OP_SH_CUSTOM_C 14 - -#define OP_MASK_CUSTOM_N 0x00003fc0 -#define OP_SH_CUSTOM_N 6 -#define OP_MAX_CUSTOM_N 255 - -/* OP instruction values. */ -#define OP_ADDI 4 -#define OP_ANDHI 44 -#define OP_ANDI 12 -#define OP_BEQ 38 -#define OP_BGE 14 -#define OP_BGEU 46 -#define OP_BLT 22 -#define OP_BLTU 54 -#define OP_BNE 30 -#define OP_BR 6 -#define OP_CALL 0 -#define OP_CMPEQI 32 -#define OP_CMPGEI 8 -#define OP_CMPGEUI 40 -#define OP_CMPLTI 16 -#define OP_CMPLTUI 48 -#define OP_CMPNEI 24 -#define OP_CUSTOM 50 -#define OP_FLUSHD 59 -#define OP_FLUSHDA 27 -#define OP_INITD 51 -#define OP_INITDA 19 -#define OP_JMPI 1 -#define OP_LDB 7 -#define OP_LDBIO 39 -#define OP_LDBU 3 -#define OP_LDBUIO 35 -#define OP_LDH 15 -#define OP_LDHIO 47 -#define OP_LDHU 11 -#define OP_LDHUIO 43 -#define OP_LDL 31 -#define OP_LDW 23 -#define OP_LDWIO 55 -#define OP_MULI 36 -#define OP_OPX 58 -#define OP_ORHI 52 -#define OP_ORI 20 -#define OP_RDPRS 56 -#define OP_STB 5 -#define OP_STBIO 37 -#define OP_STC 29 -#define OP_STH 13 -#define OP_STHIO 45 -#define OP_STW 21 -#define OP_STWIO 53 -#define OP_XORHI 60 -#define OP_XORI 28 - -/* OPX instruction values. */ -#define OPX_ADD 49 -#define OPX_AND 14 -#define OPX_BREAK 52 -#define OPX_BRET 9 -#define OPX_CALLR 29 -#define OPX_CMPEQ 32 -#define OPX_CMPGE 8 -#define OPX_CMPGEU 40 -#define OPX_CMPLT 16 -#define OPX_CMPLTU 48 -#define OPX_CMPNE 24 -#define OPX_CRST 62 -#define OPX_DIV 37 -#define OPX_DIVU 36 -#define OPX_ERET 1 -#define OPX_FLUSHI 12 -#define OPX_FLUSHP 4 -#define OPX_HBREAK 53 -#define OPX_INITI 41 -#define OPX_INTR 61 -#define OPX_JMP 13 -#define OPX_MUL 39 -#define OPX_MULXSS 31 -#define OPX_MULXSU 23 -#define OPX_MULXUU 7 -#define OPX_NEXTPC 28 -#define OPX_NOR 6 -#define OPX_OR 22 -#define OPX_RDCTL 38 -#define OPX_RET 5 -#define OPX_ROL 3 -#define OPX_ROLI 2 -#define OPX_ROR 11 -#define OPX_SLL 19 -#define OPX_SLLI 18 -#define OPX_SRA 59 -#define OPX_SRAI 58 -#define OPX_SRL 27 -#define OPX_SRLI 26 -#define OPX_SUB 57 -#define OPX_SYNC 54 -#define OPX_TRAP 45 -#define OPX_WRCTL 46 -#define OPX_WRPRS 20 -#define OPX_XOR 30 - -/* The following macros define the opcode matches for each - instruction code & OP_MASK_INST == OP_MATCH_INST. */ - -/* OP instruction matches. */ -#define OP_MATCH_ADDI OP_ADDI -#define OP_MATCH_ANDHI OP_ANDHI -#define OP_MATCH_ANDI OP_ANDI -#define OP_MATCH_BEQ OP_BEQ -#define OP_MATCH_BGE OP_BGE -#define OP_MATCH_BGEU OP_BGEU -#define OP_MATCH_BLT OP_BLT -#define OP_MATCH_BLTU OP_BLTU -#define OP_MATCH_BNE OP_BNE -#define OP_MATCH_BR OP_BR -#define OP_MATCH_FLUSHD OP_FLUSHD -#define OP_MATCH_FLUSHDA OP_FLUSHDA -#define OP_MATCH_INITD OP_INITD -#define OP_MATCH_INITDA OP_INITDA -#define OP_MATCH_CALL OP_CALL -#define OP_MATCH_CMPEQI OP_CMPEQI -#define OP_MATCH_CMPGEI OP_CMPGEI -#define OP_MATCH_CMPGEUI OP_CMPGEUI -#define OP_MATCH_CMPLTI OP_CMPLTI -#define OP_MATCH_CMPLTUI OP_CMPLTUI -#define OP_MATCH_CMPNEI OP_CMPNEI -#define OP_MATCH_JMPI OP_JMPI -#define OP_MATCH_LDB OP_LDB -#define OP_MATCH_LDBIO OP_LDBIO -#define OP_MATCH_LDBU OP_LDBU -#define OP_MATCH_LDBUIO OP_LDBUIO -#define OP_MATCH_LDH OP_LDH -#define OP_MATCH_LDHIO OP_LDHIO -#define OP_MATCH_LDHU OP_LDHU -#define OP_MATCH_LDHUIO OP_LDHUIO -#define OP_MATCH_LDL OP_LDL -#define OP_MATCH_LDW OP_LDW -#define OP_MATCH_LDWIO OP_LDWIO -#define OP_MATCH_MULI OP_MULI -#define OP_MATCH_OPX OP_OPX -#define OP_MATCH_ORHI OP_ORHI -#define OP_MATCH_ORI OP_ORI -#define OP_MATCH_RDPRS OP_RDPRS -#define OP_MATCH_STB OP_STB -#define OP_MATCH_STBIO OP_STBIO -#define OP_MATCH_STC OP_STC -#define OP_MATCH_STH OP_STH -#define OP_MATCH_STHIO OP_STHIO -#define OP_MATCH_STW OP_STW -#define OP_MATCH_STWIO OP_STWIO -#define OP_MATCH_CUSTOM OP_CUSTOM -#define OP_MATCH_XORHI OP_XORHI -#define OP_MATCH_XORI OP_XORI -#define OP_MATCH_OPX OP_OPX - -/* OPX instruction values. */ -#define OPX_MATCH(code) ((code << IW_OPX_LSB) | OP_OPX) - -#define OP_MATCH_ADD OPX_MATCH (OPX_ADD) -#define OP_MATCH_AND OPX_MATCH (OPX_AND) -#define OP_MATCH_BREAK ((0x1e << 17) | OPX_MATCH (OPX_BREAK)) -#define OP_MATCH_BRET (0xf0000000 | OPX_MATCH (OPX_BRET)) -#define OP_MATCH_CALLR ((0x1f << 17) | OPX_MATCH (OPX_CALLR)) -#define OP_MATCH_CMPEQ OPX_MATCH (OPX_CMPEQ) -#define OP_MATCH_CMPGE OPX_MATCH (OPX_CMPGE) -#define OP_MATCH_CMPGEU OPX_MATCH (OPX_CMPGEU) -#define OP_MATCH_CMPLT OPX_MATCH (OPX_CMPLT) -#define OP_MATCH_CMPLTU OPX_MATCH (OPX_CMPLTU) -#define OP_MATCH_CMPNE OPX_MATCH (OPX_CMPNE) -#define OP_MATCH_DIV OPX_MATCH (OPX_DIV) -#define OP_MATCH_DIVU OPX_MATCH (OPX_DIVU) -#define OP_MATCH_JMP OPX_MATCH (OPX_JMP) -#define OP_MATCH_MUL OPX_MATCH (OPX_MUL) -#define OP_MATCH_MULXSS OPX_MATCH (OPX_MULXSS) -#define OP_MATCH_MULXSU OPX_MATCH (OPX_MULXSU) -#define OP_MATCH_MULXUU OPX_MATCH (OPX_MULXUU) -#define OP_MATCH_NEXTPC OPX_MATCH (OPX_NEXTPC) -#define OP_MATCH_NOR OPX_MATCH (OPX_NOR) -#define OP_MATCH_OR OPX_MATCH (OPX_OR) -#define OP_MATCH_RDCTL OPX_MATCH (OPX_RDCTL) -#define OP_MATCH_RET (0xf8000000 | OPX_MATCH (OPX_RET)) -#define OP_MATCH_ROL OPX_MATCH (OPX_ROL) -#define OP_MATCH_ROLI OPX_MATCH (OPX_ROLI) -#define OP_MATCH_ROR OPX_MATCH (OPX_ROR) -#define OP_MATCH_SLL OPX_MATCH (OPX_SLL) -#define OP_MATCH_SLLI OPX_MATCH (OPX_SLLI) -#define OP_MATCH_SRA OPX_MATCH (OPX_SRA) -#define OP_MATCH_SRAI OPX_MATCH (OPX_SRAI) -#define OP_MATCH_SRL OPX_MATCH (OPX_SRL) -#define OP_MATCH_SRLI OPX_MATCH (OPX_SRLI) -#define OP_MATCH_SUB OPX_MATCH (OPX_SUB) -#define OP_MATCH_SYNC OPX_MATCH (OPX_SYNC) -#define OP_MATCH_TRAP ((0x1d << 17) | OPX_MATCH (OPX_TRAP)) -#define OP_MATCH_ERET (0xef800000 | OPX_MATCH (OPX_ERET)) -#define OP_MATCH_WRCTL OPX_MATCH (OPX_WRCTL) -#define OP_MATCH_WRPRS OPX_MATCH (OPX_WRPRS) -#define OP_MATCH_XOR OPX_MATCH (OPX_XOR) -#define OP_MATCH_FLUSHI OPX_MATCH (OPX_FLUSHI) -#define OP_MATCH_FLUSHP OPX_MATCH (OPX_FLUSHP) -#define OP_MATCH_INITI OPX_MATCH (OPX_INITI) - -/* Some unusual op masks. */ -#define OP_MASK_BREAK ((OP_MASK_RRS | OP_MASK_RRT | OP_MASK_RRD \ - | OP_MASK_ROPX | OP_MASK_OP) \ - & 0xfffff03f) -#define OP_MASK_CALLR ((OP_MASK_RRT | OP_MASK_RRD | OP_MASK_ROPX \ - | OP_MASK_OP)) -#define OP_MASK_JMP ((OP_MASK_RRT | OP_MASK_RRD | OP_MASK_ROPX \ - | OP_MASK_OP)) -#define OP_MASK_SYNC ((OP_MASK_RRT | OP_MASK_RRD | OP_MASK_ROPX \ - | OP_MASK_OP)) -#define OP_MASK_TRAP ((OP_MASK_RRS | OP_MASK_RRT | OP_MASK_RRD \ - | OP_MASK_ROPX | OP_MASK_OP) \ - & 0xfffff83f) -#define OP_MASK_WRCTL ((OP_MASK_RRT | OP_MASK_RRD | OP_MASK_ROPX \ - | OP_MASK_OP)) /*& 0xfffff83f */ -#define OP_MASK_NEXTPC ((OP_MASK_RRS | OP_MASK_RRT | OP_MASK_ROPX \ - | OP_MASK_OP)) -#define OP_MASK_FLUSHI ((OP_MASK_RRT | OP_MASK_RRD | OP_MASK_ROPX \ - | OP_MASK_OP)) -#define OP_MASK_INITI ((OP_MASK_RRT | OP_MASK_RRD | OP_MASK_ROPX \ - | OP_MASK_OP)) - -#define OP_MASK_ROLI ((OP_MASK_RRT | OP_MASK_ROPX | OP_MASK_OP)) -#define OP_MASK_SLLI ((OP_MASK_RRT | OP_MASK_ROPX | OP_MASK_OP)) -#define OP_MASK_SRAI ((OP_MASK_RRT | OP_MASK_ROPX | OP_MASK_OP)) -#define OP_MASK_SRLI ((OP_MASK_RRT | OP_MASK_ROPX | OP_MASK_OP)) -#define OP_MASK_RDCTL ((OP_MASK_RRS | OP_MASK_RRT | OP_MASK_ROPX \ - | OP_MASK_OP)) /*& 0xfffff83f */ - -#ifndef OP_MASK -#define OP_MASK 0xffffffff -#endif - -/* These convenience macros to extract instruction fields are used by GDB. */ -#define GET_IW_A(Iw) \ - (((Iw) >> IW_A_LSB) & IW_A_MASK) -#define GET_IW_B(Iw) \ - (((Iw) >> IW_B_LSB) & IW_B_MASK) -#define GET_IW_C(Iw) \ - (((Iw) >> IW_C_LSB) & IW_C_MASK) -#define GET_IW_CONTROL_REGNUM(Iw) \ - (((Iw) >> IW_CONTROL_REGNUM_LSB) & IW_CONTROL_REGNUM_MASK) -#define GET_IW_IMM16(Iw) \ - (((Iw) >> IW_IMM16_LSB) & IW_IMM16_MASK) -#define GET_IW_IMM26(Iw) \ - (((Iw) >> IW_IMM26_LSB) & IW_IMM26_MASK) -#define GET_IW_OP(Iw) \ - (((Iw) >> IW_OP_LSB) & IW_OP_MASK) -#define GET_IW_OPX(Iw) \ - (((Iw) >> IW_OPX_LSB) & IW_OPX_MASK) - -/* These are the data structures we use to hold the instruction information. */ -extern const struct nios2_opcode nios2_builtin_opcodes[]; -extern const int bfd_nios2_num_builtin_opcodes; -extern struct nios2_opcode *nios2_opcodes; -extern int bfd_nios2_num_opcodes; - -/* These are the data structures used to hold the register information. */ -extern const struct nios2_reg nios2_builtin_regs[]; -extern struct nios2_reg *nios2_regs; -extern const int nios2_num_builtin_regs; -extern int nios2_num_regs; - -/* Machine-independent macro for number of opcodes. */ -#define NUMOPCODES bfd_nios2_num_opcodes -#define NUMREGISTERS nios2_num_regs; - -/* This is made extern so that the assembler can use it to find out - what instruction caused an error. */ -extern const struct nios2_opcode *nios2_find_opcode_hash (unsigned long); - -#endif /* _NIOS2_H */ |