| /* d30v.h -- Header file for D30V opcode table |
| Copyright (C) 1997-2021 Free Software Foundation, Inc. |
| Written by Martin Hunt (hunt@cygnus.com), Cygnus Solutions |
| |
| This file is part of GDB, GAS, and the GNU binutils. |
| |
| GDB, GAS, and the GNU binutils are free software; you can redistribute |
| them and/or modify them 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. |
| |
| GDB, GAS, and the GNU binutils are distributed in the hope that they |
| 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 this file; see the file COPYING3. If not, write to the Free |
| Software Foundation, 51 Franklin Street - Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| #ifndef D30V_H |
| #define D30V_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define NOP 0x00F00000 |
| |
| /* Structure to hold information about predefined registers. */ |
| struct pd_reg |
| { |
| char *name; /* name to recognize */ |
| char *pname; /* name to print for this register */ |
| unsigned int value; |
| }; |
| |
| extern const struct pd_reg pre_defined_registers[]; |
| int reg_name_cnt (void); |
| |
| /* the number of control registers */ |
| #define MAX_CONTROL_REG 64 |
| |
| /* define the format specifiers */ |
| #define FM00 0 |
| #define FM01 0x80000000 |
| #define FM10 0x8000000000000000LL |
| #define FM11 0x8000000080000000LL |
| |
| /* define the opcode classes */ |
| #define BRA 0 |
| #define LOGIC 1 |
| #define IMEM 2 |
| #define IALU1 4 |
| #define IALU2 5 |
| |
| /* define the execution condition codes */ |
| #define ECC_AL 0 /* ALways (default) */ |
| #define ECC_TX 1 /* F0=True, F1=Don't care */ |
| #define ECC_FX 2 /* F0=False, F1=Don't care */ |
| #define ECC_XT 3 /* F0=Don't care, F1=True */ |
| #define ECC_XF 4 /* F0=Don't care, F1=False */ |
| #define ECC_TT 5 /* F0=True, F1=True */ |
| #define ECC_TF 6 /* F0=True, F1=False */ |
| #define ECC_RESERVED 7 /* reserved */ |
| #define ECC_MAX ECC_RESERVED |
| |
| extern const char *d30v_ecc_names[]; |
| |
| /* condition code table for CMP and CMPU */ |
| extern const char *d30v_cc_names[]; |
| |
| /* The opcode table is an array of struct d30v_opcode. */ |
| struct d30v_opcode |
| { |
| /* The opcode name. */ |
| const char *name; |
| |
| /* the opcode */ |
| int op1; /* first part, "IALU1" for example */ |
| int op2; /* the rest of the opcode */ |
| |
| /* opcode format(s). These numbers correspond to entries */ |
| /* in the d30v_format_table */ |
| unsigned char format[4]; |
| |
| #define SHORT_M 1 |
| #define SHORT_M2 5 /* for ld2w and st2w */ |
| #define SHORT_A 9 |
| #define SHORT_B1 11 |
| #define SHORT_B2 12 |
| #define SHORT_B2r 13 |
| #define SHORT_B3 14 |
| #define SHORT_B3r 16 |
| #define SHORT_B3b 18 |
| #define SHORT_B3br 20 |
| #define SHORT_D1r 22 |
| #define SHORT_D2 24 |
| #define SHORT_D2r 26 |
| #define SHORT_D2Br 28 |
| #define SHORT_U 30 /* unary SHORT_A. ABS for example */ |
| #define SHORT_F 31 /* SHORT_A with flag registers */ |
| #define SHORT_AF 33 /* SHORT_A with only the first register a flag register */ |
| #define SHORT_T 35 /* for trap instruction */ |
| #define SHORT_A5 36 /* SHORT_A with a 5-bit immediate instead of 6 */ |
| #define SHORT_CMP 38 /* special form for CMPcc */ |
| #define SHORT_CMPU 40 /* special form for CMPUcc */ |
| #define SHORT_A1 42 /* special form of SHORT_A for MACa opcodes where a=1 */ |
| #define SHORT_AA 44 /* SHORT_A with the first register an accumulator */ |
| #define SHORT_RA 46 /* SHORT_A with the second register an accumulator */ |
| #define SHORT_MODINC 48 |
| #define SHORT_MODDEC 49 |
| #define SHORT_C1 50 |
| #define SHORT_C2 51 |
| #define SHORT_UF 52 |
| #define SHORT_A2 53 |
| #define SHORT_NONE 55 /* no operands */ |
| #define SHORT_AR 56 /* like SHORT_AA but only accept register as third parameter */ |
| #define LONG 57 |
| #define LONG_U 58 /* unary LONG */ |
| #define LONG_Ur 59 /* LONG pc-relative */ |
| #define LONG_CMP 60 /* special form for CMPcc and CMPUcc */ |
| #define LONG_M 61 /* Memory long for ldb, stb */ |
| #define LONG_M2 62 /* Memory long for ld2w, st2w */ |
| #define LONG_2 63 /* LONG with 2 operands; jmptnz */ |
| #define LONG_2r 64 /* LONG with 2 operands; bratnz */ |
| #define LONG_2b 65 /* LONG_2 with modifier of 3 */ |
| #define LONG_2br 66 /* LONG_2r with modifier of 3 */ |
| #define LONG_D 67 /* for DJMPI */ |
| #define LONG_Dr 68 /* for DBRAI */ |
| #define LONG_Dbr 69 /* for repeati */ |
| |
| /* the execution unit(s) used */ |
| int unit; |
| #define EITHER 0 |
| #define IU 1 |
| #define MU 2 |
| #define EITHER_BUT_PREFER_MU 3 |
| |
| /* this field is used to decide if two instructions */ |
| /* can be executed in parallel */ |
| long flags_used; |
| long flags_set; |
| #define FLAG_0 (1L<<0) |
| #define FLAG_1 (1L<<1) |
| #define FLAG_2 (1L<<2) |
| #define FLAG_3 (1L<<3) |
| #define FLAG_4 (1L<<4) /* S (saturation) */ |
| #define FLAG_5 (1L<<5) /* V (overflow) */ |
| #define FLAG_6 (1L<<6) /* VA (accumulated overflow) */ |
| #define FLAG_7 (1L<<7) /* C (carry/borrow) */ |
| #define FLAG_SM (1L<<8) /* SM (stack mode) */ |
| #define FLAG_RP (1L<<9) /* RP (repeat enable) */ |
| #define FLAG_CONTROL (1L<<10) /* control registers */ |
| #define FLAG_A0 (1L<<11) /* A0 */ |
| #define FLAG_A1 (1L<<12) /* A1 */ |
| #define FLAG_JMP (1L<<13) /* instruction is a branch */ |
| #define FLAG_JSR (1L<<14) /* subroutine call. must be aligned */ |
| #define FLAG_MEM (1L<<15) /* reads/writes memory */ |
| #define FLAG_NOT_WITH_ADDSUBppp (1L<<16) /* Old meaning: a 2 word 4 byter operation |
| New meaning: operation cannot be |
| combined in parallel with ADD/SUBppp. */ |
| #define FLAG_MUL16 (1L<<17) /* 16 bit multiply */ |
| #define FLAG_MUL32 (1L<<18) /* 32 bit multiply */ |
| #define FLAG_ADDSUBppp (1L<<19) /* ADDppp or SUBppp */ |
| #define FLAG_DELAY (1L<<20) /* This is a delayed branch or jump */ |
| #define FLAG_LKR (1L<<21) /* insn in left slot kills right slot */ |
| #define FLAG_CVVA (FLAG_5|FLAG_6|FLAG_7) |
| #define FLAG_C FLAG_7 |
| #define FLAG_ALL (FLAG_0 | \ |
| FLAG_1 | \ |
| FLAG_2 | \ |
| FLAG_3 | \ |
| FLAG_4 | \ |
| FLAG_5 | \ |
| FLAG_6 | \ |
| FLAG_7 | \ |
| FLAG_SM | \ |
| FLAG_RP | \ |
| FLAG_CONTROL) |
| |
| int reloc_flag; |
| #define RELOC_PCREL 1 |
| #define RELOC_ABS 2 |
| }; |
| |
| extern const struct d30v_opcode d30v_opcode_table[]; |
| extern const int d30v_num_opcodes; |
| |
| /* The operands table is an array of struct d30v_operand. */ |
| struct d30v_operand |
| { |
| /* the length of the field */ |
| int length; |
| |
| /* The number of significant bits in the operand. */ |
| int bits; |
| |
| /* position relative to Ra */ |
| int position; |
| |
| /* syntax flags. */ |
| long flags; |
| }; |
| extern const struct d30v_operand d30v_operand_table[]; |
| |
| /* Values defined for the flags field of a struct d30v_operand. */ |
| |
| /* this is the destination register; it will be modified */ |
| /* this is used by the optimizer */ |
| #define OPERAND_DEST (1) |
| |
| /* number or symbol */ |
| #define OPERAND_NUM (2) |
| |
| /* address or label */ |
| #define OPERAND_ADDR (4) |
| |
| /* register */ |
| #define OPERAND_REG (8) |
| |
| /* postincrement + */ |
| #define OPERAND_PLUS (0x10) |
| |
| /* postdecrement - */ |
| #define OPERAND_MINUS (0x20) |
| |
| /* signed number */ |
| #define OPERAND_SIGNED (0x40) |
| |
| /* this operand must be shifted left by 3 */ |
| #define OPERAND_SHIFT (0x80) |
| |
| /* flag register */ |
| #define OPERAND_FLAG (0x100) |
| |
| /* control register */ |
| #define OPERAND_CONTROL (0x200) |
| |
| /* accumulator */ |
| #define OPERAND_ACC (0x400) |
| |
| /* @ */ |
| #define OPERAND_ATSIGN (0x800) |
| |
| /* @( */ |
| #define OPERAND_ATPAR (0x1000) |
| |
| /* predecrement mode '@-sp' */ |
| #define OPERAND_ATMINUS (0x2000) |
| |
| /* this operand changes the instruction name */ |
| /* for example, CPMcc, CMPUcc */ |
| #define OPERAND_NAME (0x4000) |
| |
| /* fake operand for mvtsys and mvfsys */ |
| #define OPERAND_SPECIAL (0x8000) |
| |
| /* let the optimizer know that two registers are affected */ |
| #define OPERAND_2REG (0x10000) |
| |
| /* This operand is pc-relative. Note that repeati can have two immediate |
| operands, one of which is pcrel, the other (the IMM6U one) is not. */ |
| #define OPERAND_PCREL (0x20000) |
| |
| /* The format table is an array of struct d30v_format. */ |
| struct d30v_format |
| { |
| int form; /* SHORT_A, LONG, etc */ |
| int modifier; /* two bit modifier following opcode */ |
| unsigned char operands[5]; |
| }; |
| extern const struct d30v_format d30v_format_table[]; |
| |
| |
| /* an instruction is defined by an opcode and a format */ |
| /* for example, "add" has one opcode, but three different */ |
| /* formats, 2 SHORT_A forms and a LONG form. */ |
| struct d30v_insn |
| { |
| struct d30v_opcode *op; /* pointer to an entry in the opcode table */ |
| struct d30v_format *form; /* pointer to an entry in the format table */ |
| int ecc; /* execution condition code */ |
| }; |
| |
| /* an expressionS only has one register type, so we fake it */ |
| /* by setting high bits to indicate type */ |
| #define REGISTER_MASK 0xFF |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* D30V_H */ |