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Rev 1437 → Rev 1765

/include/opcode/or32.h
0,0 → 1,273
/* Table of opcodes for the OpenRISC 1000 ISA.
Copyright 1990, 1991, 1992, 1993 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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)
 
#ifndef PARAMS
#define PARAMS(x) x
#endif
 
#ifndef CONST
#define CONST const
#endif
 
#define MAX_GPRS 32
#define PAGE_SIZE 8192
#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 ??*/
};
 
enum insn_type {
it_unknown,
it_exception,
it_arith,
it_shift,
it_compare,
it_branch,
it_jump,
it_load,
it_store,
it_movimm,
it_move,
it_extend,
it_nop,
it_mac,
it_float };
 
/* 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 (destination).
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;
 
#ifdef HAS_EXECUTION
# if !SIMPLE_EXECUTION
char *function_name;
# else /* !SIMPLE_EXECUTION */
void (*exec)(struct iqueue_entry *);
# endif
#else /* HAS_EXECUTION */
void (*exec)(void);
#endif
 
unsigned int flags;
enum insn_type func_unit;
};
 
/* This operand is the last in the list */
#define OPTYPE_LAST (0x80000000)
/* This operand marks the end of the operand sequence (for things like I(rD)) */
#define OPTYPE_OP (0x40000000)
/* The operand specifies a register index */
#define OPTYPE_REG (0x20000000)
/* The operand must be sign extended */
#define OPTYPE_SIG (0x10000000)
/* Operand is a relative address, the `I' in `I(rD)' */
#define OPTYPE_DIS (0x08000000)
/* The operand is a destination */
#define OPTYPE_DST (0x04000000)
/* Which bit of the operand is the sign bit */
#define OPTYPE_SBIT (0x00001F00)
/* Amount to shift the instruction word right to get the operand */
#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;
 
/* Leaf flag used in automata building */
#define LEAF_FLAG (0x80000000)
 
struct temp_insn_struct
{
unsigned long insn;
unsigned long insn_mask;
int in_pass;
};
 
extern unsigned long *automata;
extern struct temp_insn_struct *ti;
 
#if defined(HAS_EXECUTION) && SIMPLE_EXECUTION
extern void l_invalid PARAMS((struct iqueue_entry *));
extern void l_sfne PARAMS((struct iqueue_entry *));
extern void l_bf PARAMS((struct iqueue_entry *));
extern void l_add PARAMS((struct iqueue_entry *));
extern void l_addc PARAMS((struct iqueue_entry *));
extern void l_sw PARAMS((struct iqueue_entry *));
extern void l_sb PARAMS((struct iqueue_entry *));
extern void l_sh PARAMS((struct iqueue_entry *));
extern void l_lwz PARAMS((struct iqueue_entry *));
extern void l_lbs PARAMS((struct iqueue_entry *));
extern void l_lbz PARAMS((struct iqueue_entry *));
extern void l_lhs PARAMS((struct iqueue_entry *));
extern void l_lhz PARAMS((struct iqueue_entry *));
extern void l_movhi PARAMS((struct iqueue_entry *));
extern void l_and PARAMS((struct iqueue_entry *));
extern void l_or PARAMS((struct iqueue_entry *));
extern void l_xor PARAMS((struct iqueue_entry *));
extern void l_sub PARAMS((struct iqueue_entry *));
extern void l_mul PARAMS((struct iqueue_entry *));
extern void l_div PARAMS((struct iqueue_entry *));
extern void l_divu PARAMS((struct iqueue_entry *));
extern void l_sll PARAMS((struct iqueue_entry *));
extern void l_sra PARAMS((struct iqueue_entry *));
extern void l_srl PARAMS((struct iqueue_entry *));
extern void l_j PARAMS((struct iqueue_entry *));
extern void l_jal PARAMS((struct iqueue_entry *));
extern void l_jalr PARAMS((struct iqueue_entry *));
extern void l_jr PARAMS((struct iqueue_entry *));
extern void l_rfe PARAMS((struct iqueue_entry *));
extern void l_nop PARAMS((struct iqueue_entry *));
extern void l_bnf PARAMS((struct iqueue_entry *));
extern void l_sfeq PARAMS((struct iqueue_entry *));
extern void l_sfgts PARAMS((struct iqueue_entry *));
extern void l_sfges PARAMS((struct iqueue_entry *));
extern void l_sflts PARAMS((struct iqueue_entry *));
extern void l_sfles PARAMS((struct iqueue_entry *));
extern void l_sfgtu PARAMS((struct iqueue_entry *));
extern void l_sfgeu PARAMS()(struct iqueue_entry *);
extern void l_sfltu PARAMS((struct iqueue_entry *));
extern void l_sfleu PARAMS((struct iqueue_entry *));
extern void l_extbs PARAMS((struct iqueue_entry *));
extern void l_extbz PARAMS((struct iqueue_entry *));
extern void l_exths PARAMS((struct iqueue_entry *));
extern void l_exthz PARAMS((struct iqueue_entry *));
extern void l_extws PARAMS((struct iqueue_entry *));
extern void l_extwz PARAMS((struct iqueue_entry *));
extern void l_mtspr PARAMS((struct iqueue_entry *));
extern void l_mfspr PARAMS((struct iqueue_entry *));
extern void l_sys PARAMS((struct iqueue_entry *));
extern void l_trap PARAMS((struct iqueue_entry *)); /* CZ 21/06/01 */
extern void l_macrc PARAMS((struct iqueue_entry *));
extern void l_mac PARAMS((struct iqueue_entry *));
extern void l_msb PARAMS((struct iqueue_entry *));
extern void l_invalid PARAMS((struct iqueue_entry *));
extern void l_cmov PARAMS ((struct iqueue_entry *));
extern void l_ff1 PARAMS ((struct iqueue_entry *));
extern void l_cust1 PARAMS ((struct iqueue_entry *));
extern void l_cust2 PARAMS ((struct iqueue_entry *));
extern void l_cust3 PARAMS ((struct iqueue_entry *));
extern void l_cust4 PARAMS ((struct iqueue_entry *));
extern void lf_add_s PARAMS ((struct iqueue_entry *));
extern void lf_div_s PARAMS ((struct iqueue_entry *));
extern void lf_ftoi_s PARAMS ((struct iqueue_entry *));
extern void lf_itof_s PARAMS ((struct iqueue_entry *));
extern void lf_madd_s PARAMS ((struct iqueue_entry *));
extern void lf_mul_s PARAMS ((struct iqueue_entry *));
extern void lf_rem_s PARAMS ((struct iqueue_entry *));
extern void lf_sfeq_s PARAMS ((struct iqueue_entry *));
extern void lf_sfge_s PARAMS ((struct iqueue_entry *));
extern void lf_sfgt_s PARAMS ((struct iqueue_entry *));
extern void lf_sfle_s PARAMS ((struct iqueue_entry *));
extern void lf_sflt_s PARAMS ((struct iqueue_entry *));
extern void lf_sfne_s PARAMS ((struct iqueue_entry *));
extern void lf_sub_s PARAMS((struct iqueue_entry *));
extern void l_none PARAMS((struct iqueue_entry *));
#else
extern void l_none PARAMS((void));
#endif
 
extern CONST struct or32_letter or32_letters[];
 
extern CONST struct or32_opcode or32_opcodes[];
 
extern CONST int num_opcodes;
 
/* Calculates instruction length in bytes. Always 4 for OR32. */
extern int insn_len PARAMS((int insn_index));
 
/* Is individual insn's operand signed or unsigned? */
extern int letter_signed PARAMS((char l));
 
/* Number of letters in the individual lettered operand. */
extern int letter_range PARAMS((char l));
 
/* MM: Returns index of given instruction name. */
extern int insn_index PARAMS((char *insn));
 
/* MM: Returns instruction name from index. */
extern CONST char *insn_name PARAMS ((int index));
 
/* MM: Constructs new FSM, based on or32_opcodes. */
extern void build_automata PARAMS ((void));
 
/* MM: Destructs FSM. */
extern void destruct_automata PARAMS ((void));
 
/* MM: Decodes instruction using FSM. Call build_automata first. */
extern int insn_decode PARAMS((unsigned int insn));
 
/* Disassemble one instruction from insn to disassemble.
Return the size of the instruction. */
int disassemble_insn (unsigned long insn);
 
/* Disassemble one instruction from insn index.
Return the size of the instruction. */
int disassemble_index (unsigned long insn, int index);
 
/* FOR INTERNAL USE ONLY */
/* Automatically does zero- or sign- extension and also finds correct
sign bit position if sign extension is correct extension. Which extension
is proper is figured out from letter description. */
unsigned long extend_imm(unsigned long imm, char l);
 
/* Extracts value from opcode */
unsigned long or32_extract(char param_ch, char *enc_initial, unsigned long insn);
 
#endif
 
/opcodes/or32.h
0,0 → 1,273
/* Table of opcodes for the OpenRISC 1000 ISA.
Copyright 1990, 1991, 1992, 1993 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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)
 
#ifndef PARAMS
#define PARAMS(x) x
#endif
 
#ifndef CONST
#define CONST const
#endif
 
#define MAX_GPRS 32
#define PAGE_SIZE 8192
#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 ??*/
};
 
enum insn_type {
it_unknown,
it_exception,
it_arith,
it_shift,
it_compare,
it_branch,
it_jump,
it_load,
it_store,
it_movimm,
it_move,
it_extend,
it_nop,
it_mac,
it_float };
 
/* 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 (destination).
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;
 
#ifdef HAS_EXECUTION
# if !SIMPLE_EXECUTION
char *function_name;
# else /* !SIMPLE_EXECUTION */
void (*exec)(struct iqueue_entry *);
# endif
#else /* HAS_EXECUTION */
void (*exec)(void);
#endif
 
unsigned int flags;
enum insn_type func_unit;
};
 
/* This operand is the last in the list */
#define OPTYPE_LAST (0x80000000)
/* This operand marks the end of the operand sequence (for things like I(rD)) */
#define OPTYPE_OP (0x40000000)
/* The operand specifies a register index */
#define OPTYPE_REG (0x20000000)
/* The operand must be sign extended */
#define OPTYPE_SIG (0x10000000)
/* Operand is a relative address, the `I' in `I(rD)' */
#define OPTYPE_DIS (0x08000000)
/* The operand is a destination */
#define OPTYPE_DST (0x04000000)
/* Which bit of the operand is the sign bit */
#define OPTYPE_SBIT (0x00001F00)
/* Amount to shift the instruction word right to get the operand */
#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;
 
/* Leaf flag used in automata building */
#define LEAF_FLAG (0x80000000)
 
struct temp_insn_struct
{
unsigned long insn;
unsigned long insn_mask;
int in_pass;
};
 
extern unsigned long *automata;
extern struct temp_insn_struct *ti;
 
#if defined(HAS_EXECUTION) && SIMPLE_EXECUTION
extern void l_invalid PARAMS((struct iqueue_entry *));
extern void l_sfne PARAMS((struct iqueue_entry *));
extern void l_bf PARAMS((struct iqueue_entry *));
extern void l_add PARAMS((struct iqueue_entry *));
extern void l_addc PARAMS((struct iqueue_entry *));
extern void l_sw PARAMS((struct iqueue_entry *));
extern void l_sb PARAMS((struct iqueue_entry *));
extern void l_sh PARAMS((struct iqueue_entry *));
extern void l_lwz PARAMS((struct iqueue_entry *));
extern void l_lbs PARAMS((struct iqueue_entry *));
extern void l_lbz PARAMS((struct iqueue_entry *));
extern void l_lhs PARAMS((struct iqueue_entry *));
extern void l_lhz PARAMS((struct iqueue_entry *));
extern void l_movhi PARAMS((struct iqueue_entry *));
extern void l_and PARAMS((struct iqueue_entry *));
extern void l_or PARAMS((struct iqueue_entry *));
extern void l_xor PARAMS((struct iqueue_entry *));
extern void l_sub PARAMS((struct iqueue_entry *));
extern void l_mul PARAMS((struct iqueue_entry *));
extern void l_div PARAMS((struct iqueue_entry *));
extern void l_divu PARAMS((struct iqueue_entry *));
extern void l_sll PARAMS((struct iqueue_entry *));
extern void l_sra PARAMS((struct iqueue_entry *));
extern void l_srl PARAMS((struct iqueue_entry *));
extern void l_j PARAMS((struct iqueue_entry *));
extern void l_jal PARAMS((struct iqueue_entry *));
extern void l_jalr PARAMS((struct iqueue_entry *));
extern void l_jr PARAMS((struct iqueue_entry *));
extern void l_rfe PARAMS((struct iqueue_entry *));
extern void l_nop PARAMS((struct iqueue_entry *));
extern void l_bnf PARAMS((struct iqueue_entry *));
extern void l_sfeq PARAMS((struct iqueue_entry *));
extern void l_sfgts PARAMS((struct iqueue_entry *));
extern void l_sfges PARAMS((struct iqueue_entry *));
extern void l_sflts PARAMS((struct iqueue_entry *));
extern void l_sfles PARAMS((struct iqueue_entry *));
extern void l_sfgtu PARAMS((struct iqueue_entry *));
extern void l_sfgeu PARAMS()(struct iqueue_entry *);
extern void l_sfltu PARAMS((struct iqueue_entry *));
extern void l_sfleu PARAMS((struct iqueue_entry *));
extern void l_extbs PARAMS((struct iqueue_entry *));
extern void l_extbz PARAMS((struct iqueue_entry *));
extern void l_exths PARAMS((struct iqueue_entry *));
extern void l_exthz PARAMS((struct iqueue_entry *));
extern void l_extws PARAMS((struct iqueue_entry *));
extern void l_extwz PARAMS((struct iqueue_entry *));
extern void l_mtspr PARAMS((struct iqueue_entry *));
extern void l_mfspr PARAMS((struct iqueue_entry *));
extern void l_sys PARAMS((struct iqueue_entry *));
extern void l_trap PARAMS((struct iqueue_entry *)); /* CZ 21/06/01 */
extern void l_macrc PARAMS((struct iqueue_entry *));
extern void l_mac PARAMS((struct iqueue_entry *));
extern void l_msb PARAMS((struct iqueue_entry *));
extern void l_invalid PARAMS((struct iqueue_entry *));
extern void l_cmov PARAMS ((struct iqueue_entry *));
extern void l_ff1 PARAMS ((struct iqueue_entry *));
extern void l_cust1 PARAMS ((struct iqueue_entry *));
extern void l_cust2 PARAMS ((struct iqueue_entry *));
extern void l_cust3 PARAMS ((struct iqueue_entry *));
extern void l_cust4 PARAMS ((struct iqueue_entry *));
extern void lf_add_s PARAMS ((struct iqueue_entry *));
extern void lf_div_s PARAMS ((struct iqueue_entry *));
extern void lf_ftoi_s PARAMS ((struct iqueue_entry *));
extern void lf_itof_s PARAMS ((struct iqueue_entry *));
extern void lf_madd_s PARAMS ((struct iqueue_entry *));
extern void lf_mul_s PARAMS ((struct iqueue_entry *));
extern void lf_rem_s PARAMS ((struct iqueue_entry *));
extern void lf_sfeq_s PARAMS ((struct iqueue_entry *));
extern void lf_sfge_s PARAMS ((struct iqueue_entry *));
extern void lf_sfgt_s PARAMS ((struct iqueue_entry *));
extern void lf_sfle_s PARAMS ((struct iqueue_entry *));
extern void lf_sflt_s PARAMS ((struct iqueue_entry *));
extern void lf_sfne_s PARAMS ((struct iqueue_entry *));
extern void lf_sub_s PARAMS((struct iqueue_entry *));
extern void l_none PARAMS((struct iqueue_entry *));
#else
extern void l_none PARAMS((void));
#endif
 
extern CONST struct or32_letter or32_letters[];
 
extern CONST struct or32_opcode or32_opcodes[];
 
extern CONST int num_opcodes;
 
/* Calculates instruction length in bytes. Always 4 for OR32. */
extern int insn_len PARAMS((int insn_index));
 
/* Is individual insn's operand signed or unsigned? */
extern int letter_signed PARAMS((char l));
 
/* Number of letters in the individual lettered operand. */
extern int letter_range PARAMS((char l));
 
/* MM: Returns index of given instruction name. */
extern int insn_index PARAMS((char *insn));
 
/* MM: Returns instruction name from index. */
extern CONST char *insn_name PARAMS ((int index));
 
/* MM: Constructs new FSM, based on or32_opcodes. */
extern void build_automata PARAMS ((void));
 
/* MM: Destructs FSM. */
extern void destruct_automata PARAMS ((void));
 
/* MM: Decodes instruction using FSM. Call build_automata first. */
extern int insn_decode PARAMS((unsigned int insn));
 
/* Disassemble one instruction from insn to disassemble.
Return the size of the instruction. */
int disassemble_insn (unsigned long insn);
 
/* Disassemble one instruction from insn index.
Return the size of the instruction. */
int disassemble_index (unsigned long insn, int index);
 
/* FOR INTERNAL USE ONLY */
/* Automatically does zero- or sign- extension and also finds correct
sign bit position if sign extension is correct extension. Which extension
is proper is figured out from letter description. */
unsigned long extend_imm(unsigned long imm, char l);
 
/* Extracts value from opcode */
unsigned long or32_extract(char param_ch, char *enc_initial, unsigned long insn);
 
#endif
 

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