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/* Table of opcodes for the OpenRISC 1000 ISA.
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/* Table of opcodes for the OpenRISC 1000 ISA.
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Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
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Copyright 2002 Free Software Foundation, Inc.
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Contributed by Damjan Lampret (lampret@opencores.org).
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Contributed by Damjan Lampret (lampret@opencores.org).
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This file is part of or1k_gen_isa, or1ksim, GDB and GAS.
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This file is part of or1k_gen_isa, or1ksim, GDB and GAS.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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#define OR32_IF_DELAY (1)
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#define OR32_IF_DELAY (1)
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#define OR32_W_FLAG (2)
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#define OR32_W_FLAG (2)
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#define OR32_R_FLAG (4)
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#define OR32_R_FLAG (4)
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struct or32_letter {
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struct or32_letter
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{
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char letter;
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char letter;
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int sign;
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int sign;
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/* int reloc; relocation per letter ??*/
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/* int reloc; relocation per letter ??*/
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};
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};
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/* Main instruction specification array. */
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/* Main instruction specification array. */
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struct or32_opcode {
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struct or32_opcode
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{
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/* Name of the instruction. */
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/* Name of the instruction. */
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char *name;
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char *name;
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/* A string of characters which describe the operands.
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/* A string of characters which describe the operands.
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Valid characters are:
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Valid characters are:
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J An immediate operand, range . (unused)
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J An immediate operand, range . (unused)
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K An immediate operand, range 0 to 65535.
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K An immediate operand, range 0 to 65535.
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L An immediate operand, range 0 to 63.
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L An immediate operand, range 0 to 63.
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M An immediate operand, range . (unused)
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M An immediate operand, range . (unused)
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N An immediate operand, range -33554432 to 33554431.
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N An immediate operand, range -33554432 to 33554431.
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O An immediate operand, range . (unused) */
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O An immediate operand, range . (unused). */
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char *args;
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char *args;
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/* Opcode and operand encoding. */
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/* Opcode and operand encoding. */
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char *encoding;
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char *encoding;
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void (*exec)();
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void (*exec) PARAMS ((void));
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unsigned int flags;
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unsigned int flags;
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};
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};
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#define OPTYPE_LAST (0x80000000)
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#define OPTYPE_LAST (0x80000000)
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#define OPTYPE_OP (0x40000000)
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#define OPTYPE_OP (0x40000000)
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#define OPTYPE_SBIT (0x00001F00)
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#define OPTYPE_SBIT (0x00001F00)
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#define OPTYPE_SHR (0x0000001F)
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#define OPTYPE_SHR (0x0000001F)
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#define OPTYPE_SBIT_SHR (8)
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#define OPTYPE_SBIT_SHR (8)
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/* MM: Data how to decode operands. */
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/* MM: Data how to decode operands. */
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extern struct insn_op_struct {
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extern struct insn_op_struct
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{
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unsigned long type;
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unsigned long type;
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unsigned long data;
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unsigned long data;
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} **op_start;
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} **op_start;
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#ifdef HAS_EXECUTION
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#ifdef HAS_EXECUTION
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extern void l_sfles PARAMS((void));
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extern void l_sfles PARAMS((void));
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extern void l_sfgtu PARAMS((void));
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extern void l_sfgtu PARAMS((void));
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extern void l_sfgeu PARAMS((void));
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extern void l_sfgeu PARAMS((void));
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extern void l_sfltu PARAMS((void));
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extern void l_sfltu PARAMS((void));
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extern void l_sfleu PARAMS((void));
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extern void l_sfleu PARAMS((void));
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extern void l_extbs PARAMS((void));
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extern void l_extbz PARAMS((void));
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extern void l_exths PARAMS((void));
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extern void l_exthz PARAMS((void));
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extern void l_extws PARAMS((void));
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extern void l_extwz PARAMS((void));
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extern void l_mtspr PARAMS((void));
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extern void l_mtspr PARAMS((void));
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extern void l_mfspr PARAMS((void));
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extern void l_mfspr PARAMS((void));
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extern void l_sys PARAMS((void));
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extern void l_sys PARAMS((void));
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extern void l_trap PARAMS((void)); /* CZ 21/06/01 */
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extern void l_trap PARAMS ((void)); /* CZ 21/06/01. */
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extern void l_macrc PARAMS((void));
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extern void l_macrc PARAMS((void));
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extern void l_mac PARAMS((void));
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extern void l_mac PARAMS((void));
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extern void l_msb PARAMS((void));
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extern void l_msb PARAMS((void));
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extern void l_invalid PARAMS((void));
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extern void l_invalid PARAMS((void));
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extern void l_cmov PARAMS ((void));
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extern void l_cust1 PARAMS ((void));
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extern void l_cust1 PARAMS ((void));
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extern void l_cust2 PARAMS ((void));
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extern void l_cust2 PARAMS ((void));
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extern void l_cust3 PARAMS ((void));
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extern void l_cust3 PARAMS ((void));
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extern void l_cust4 PARAMS ((void));
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extern void l_cust4 PARAMS ((void));
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#endif
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#endif
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extern void l_none PARAMS((void));
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extern void l_none PARAMS((void));
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extern CONST struct or32_letter or32_letters[];
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extern const struct or32_letter or32_letters[];
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extern CONST struct or32_opcode or32_opcodes[];
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extern const struct or32_opcode or32_opcodes[];
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extern CONST int num_opcodes;
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extern const unsigned int or32_num_opcodes;
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/* Calculates instruction length in bytes. Always 4 for OR32. */
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/* Calculates instruction length in bytes. Always 4 for OR32. */
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extern int insn_len PARAMS((int insn_index));
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extern int insn_len PARAMS ((int));
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/* Is individual insn's operand signed or unsigned? */
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/* Is individual insn's operand signed or unsigned? */
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extern int letter_signed PARAMS((char l));
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extern int letter_signed PARAMS ((char));
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/* Number of letters in the individual lettered operand. */
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/* Number of letters in the individual lettered operand. */
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extern int letter_range PARAMS((char l));
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extern int letter_range PARAMS ((char));
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/* MM: Returns index of given instruction name. */
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/* MM: Returns index of given instruction name. */
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extern int insn_index PARAMS((char *insn));
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extern int insn_index PARAMS ((char *));
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/* MM: Returns instruction name from index. */
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/* MM: Returns instruction name from index. */
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extern CONST char *insn_name PARAMS ((int index));
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extern const char *insn_name PARAMS ((int));
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/* MM: Constructs new FSM, based on or32_opcodes. */
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/* MM: Constructs new FSM, based on or32_opcodes. */
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extern void build_automata PARAMS ((void));
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extern void build_automata PARAMS ((void));
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/* MM: Destructs FSM. */
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/* MM: Destructs FSM. */
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extern void destruct_automata PARAMS ((void));
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extern void destruct_automata PARAMS ((void));
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/* MM: Decodes instruction using FSM. Call build_automata first. */
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/* MM: Decodes instruction using FSM. Call build_automata first. */
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extern int insn_decode PARAMS((unsigned int insn));
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extern int insn_decode PARAMS ((unsigned int));
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/* Disassemble one instruction from insn to disassemble.
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/* Disassemble one instruction from insn to disassemble.
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Return the size of the instruction. */
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Return the size of the instruction. */
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int disassemble_insn (unsigned long insn);
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int disassemble_insn PARAMS ((unsigned long));
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#endif
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#endif
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No newline at end of file
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