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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [include/] [opcode/] [or32.h] - Rev 438
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/* Table of opcodes for the OpenRISC 1000 ISA. Copyright 2002, 2003, 2010 Free Software Foundation, Inc. Contributed by Damjan Lampret (lampret@opencores.org). This file is part of or1k_gen_isa, or1ksim, GDB and GAS. This program 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 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ /* We treat all letters the same in encode/decode routines so we need to assign some characteristics to them like signess etc. */ #ifndef OR32_H_ISA #define OR32_H_ISA #define NUM_UNSIGNED (0) #define NUM_SIGNED (1) #define MAX_GPRS 32 #define PAGE_SIZE 4096 #undef __HALF_WORD_INSN__ #define OPERAND_DELIM (',') #define OR32_IF_DELAY (1) #define OR32_W_FLAG (2) #define OR32_R_FLAG (4) struct or32_letter { char letter; int sign; /* int reloc; relocation per letter ?? */ }; /* Main instruction specification array. */ struct or32_opcode { /* Name of the instruction. */ char *name; /* A string of characters which describe the operands. Valid characters are: ,() Itself. Characters appears in the assembly code. rA Register operand. rB Register operand. rD Register operand. I An immediate operand, range -32768 to 32767. J An immediate operand, range . (unused) K An immediate operand, range 0 to 65535. L An immediate operand, range 0 to 63. M An immediate operand, range . (unused) N An immediate operand, range -33554432 to 33554431. O An immediate operand, range . (unused). */ char *args; /* Opcode and operand encoding. */ char *encoding; void (*exec) (void); unsigned int flags; }; #define OPTYPE_LAST (0x80000000) #define OPTYPE_OP (0x40000000) #define OPTYPE_REG (0x20000000) #define OPTYPE_SIG (0x10000000) #define OPTYPE_DIS (0x08000000) #define OPTYPE_DST (0x04000000) #define OPTYPE_SBIT (0x00001F00) #define OPTYPE_SHR (0x0000001F) #define OPTYPE_SBIT_SHR (8) /* MM: Data how to decode operands. */ extern struct insn_op_struct { unsigned long type; unsigned long data; } **op_start; #ifdef HAS_EXECUTION extern void l_invalid (void); extern void l_sfne (void); extern void l_bf (void); extern void l_add (void); extern void l_sw (void); extern void l_sb (void); extern void l_sh (void); extern void l_lwz (void); extern void l_lbs (void); extern void l_lbz (void); extern void l_lhs (void); extern void l_lhz (void); extern void l_movhi (void); extern void l_and (void); extern void l_or (void); extern void l_xor (void); extern void l_sub (void); extern void l_mul (void); extern void l_div (void); extern void l_divu (void); extern void l_sll (void); extern void l_sra (void); extern void l_srl (void); extern void l_j (void); extern void l_jal (void); extern void l_jalr (void); extern void l_jr (void); extern void l_rfe (void); extern void l_nop (void); extern void l_bnf (void); extern void l_sfeq (void); extern void l_sfgts (void); extern void l_sfges (void); extern void l_sflts (void); extern void l_sfles (void); extern void l_sfgtu (void); extern void l_sfgeu (void); extern void l_sfltu (void); extern void l_sfleu (void); extern void l_mtspr (void); extern void l_mfspr (void); extern void l_sys (void); extern void l_trap (void); /* CZ 21/06/01. */ extern void l_macrc (void); extern void l_mac (void); extern void l_msb (void); extern void l_invalid (void); extern void l_cust1 (void); extern void l_cust2 (void); extern void l_cust3 (void); extern void l_cust4 (void); #endif extern void l_none (void); extern const struct or32_letter or32_letters[]; extern const struct or32_opcode or32_opcodes[]; extern const unsigned int or32_num_opcodes; /* Calculates instruction length in bytes. Always 4 for OR32. */ extern int insn_len (int); /* Is individual insn's operand signed or unsigned? */ extern int letter_signed (char); /* Number of letters in the individual lettered operand. */ extern int letter_range (char); /* MM: Returns index of given instruction name. */ extern int insn_index (char *); /* MM: Returns instruction name from index. */ extern const char *insn_name (int); /* MM: Constructs new FSM, based on or32_opcodes. */ extern void build_automata (void); /* MM: Destructs FSM. */ extern void destruct_automata (void); /* MM: Decodes instruction using FSM. Call build_automata first. */ extern int insn_decode (unsigned int); /* Disassemble one instruction from insn to disassemble. Return the size of the instruction. */ int disassemble_insn (unsigned long); #endif
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