URL
https://opencores.org/ocsvn/or1k/or1k/trunk
Subversion Repositories or1k
Compare Revisions
- This comparison shows the changes necessary to convert path
/or1k/tags/nog_patch_43/gdb-5.0/include/opcode
- from Rev 1411 to Rev 1765
- ↔ Reverse comparison
Rev 1411 → Rev 1765
/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 |
|