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xemu/microblaze-dis.c

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microblaze: Add disassembler. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-20 18:07:38 +00:00
/* Disassemble Xilinx microblaze instructions.
Copyright (C) 1993, 1999, 2000 Free Software Foundation, Inc.
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
Update to a hopefully more future proof FSF address Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-16 20:47:01 +00:00
along with this program; if not, see <http://www.gnu.org/licenses/>. */
microblaze: Add disassembler. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-20 18:07:38 +00:00
/*
* Copyright (c) 2001 Xilinx, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Xilinx, Inc. The name of the Company may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Xilinx, Inc.
*/
#include <stdio.h>
#define STATIC_TABLE
#define DEFINE_TABLE
#ifndef MICROBLAZE_OPC
#define MICROBLAZE_OPC
/* Assembler instructions for Xilinx's microblaze processor
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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
Update to a hopefully more future proof FSF address Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-16 20:47:01 +00:00
along with this program; if not, see <http://www.gnu.org/licenses/>. */
microblaze: Add disassembler. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-20 18:07:38 +00:00
/*
* Copyright (c) 2001 Xilinx, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Xilinx, Inc. The name of the Company may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Xilinx, Inc.
*/
#ifndef MICROBLAZE_OPCM
#define MICROBLAZE_OPCM
/*
* Copyright (c) 2001 Xilinx, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Xilinx, Inc. The name of the Company may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Xilinx, Inc.
* $Header:
*/
enum microblaze_instr {
add, rsub, addc, rsubc, addk, rsubk, addkc, rsubkc, cmp, cmpu,
addi, rsubi, addic, rsubic, addik, rsubik, addikc, rsubikc, mul,
idiv, idivu, bsll, bsra, bsrl, get, put, nget, nput, cget, cput,
ncget, ncput, muli, bslli, bsrai, bsrli, mului, or, and, xor,
andn, pcmpbf, pcmpbc, pcmpeq, pcmpne, sra, src, srl, sext8, sext16, wic, wdc, mts, mfs, br, brd,
brld, bra, brad, brald, microblaze_brk, beq, beqd, bne, bned, blt,
bltd, ble, bled, bgt, bgtd, bge, bged, ori, andi, xori, andni,
imm, rtsd, rtid, rtbd, rted, bri, brid, brlid, brai, braid, bralid,
brki, beqi, beqid, bnei, bneid, blti, bltid, blei, bleid, bgti,
bgtid, bgei, bgeid, lbu, lhu, lw, sb, sh, sw, lbui, lhui, lwi,
sbi, shi, swi, msrset, msrclr, tuqula, fadd, frsub, fmul, fdiv,
fcmp_lt, fcmp_eq, fcmp_le, fcmp_gt, fcmp_ne, fcmp_ge, fcmp_un, invalid_inst } ;
enum microblaze_instr_type {
arithmetic_inst, logical_inst, mult_inst, div_inst, branch_inst,
return_inst, immediate_inst, special_inst, memory_load_inst,
memory_store_inst, barrel_shift_inst, anyware_inst };
#define INST_WORD_SIZE 4
/* gen purpose regs go from 0 to 31 */
/* mask is reg num - max_reg_num, ie reg_num - 32 in this case */
#define REG_PC_MASK 0x8000
#define REG_MSR_MASK 0x8001
#define REG_EAR_MASK 0x8003
#define REG_ESR_MASK 0x8005
#define REG_FSR_MASK 0x8007
#define MIN_REGNUM 0
#define MAX_REGNUM 31
#define REG_PC 32 /* PC */
#define REG_MSR 33 /* machine status reg */
#define REG_EAR 35 /* Exception reg */
#define REG_ESR 37 /* Exception reg */
#define REG_FSR 39 /* FPU Status reg */
/* alternate names for gen purpose regs */
#define REG_SP 1 /* stack pointer */
#define REG_ROSDP 2 /* read-only small data pointer */
#define REG_RWSDP 13 /* read-write small data pointer */
/* Assembler Register - Used in Delay Slot Optimization */
#define REG_AS 18
#define REG_ZERO 0
#define RD_LOW 21 /* low bit for RD */
#define RA_LOW 16 /* low bit for RA */
#define RB_LOW 11 /* low bit for RB */
#define IMM_LOW 0 /* low bit for immediate */
#define RD_MASK 0x03E00000
#define RA_MASK 0x001F0000
#define RB_MASK 0x0000F800
#define IMM_MASK 0x0000FFFF
// imm mask for barrel shifts
#define IMM5_MASK 0x0000001F
// imm mask for get, put instructions
#define IMM12_MASK 0x00000FFF
// imm mask for msrset, msrclr instructions
#define IMM14_MASK 0x00003FFF
#endif /* MICROBLAZE-OPCM */
#define INST_TYPE_RD_R1_R2 0
#define INST_TYPE_RD_R1_IMM 1
#define INST_TYPE_RD_R1_UNSIGNED_IMM 2
#define INST_TYPE_RD_R1 3
#define INST_TYPE_RD_R2 4
#define INST_TYPE_RD_IMM 5
#define INST_TYPE_R2 6
#define INST_TYPE_R1_R2 7
#define INST_TYPE_R1_IMM 8
#define INST_TYPE_IMM 9
#define INST_TYPE_SPECIAL_R1 10
#define INST_TYPE_RD_SPECIAL 11
#define INST_TYPE_R1 12
// new instn type for barrel shift imms
#define INST_TYPE_RD_R1_IMM5 13
#define INST_TYPE_RD_IMM12 14
#define INST_TYPE_R1_IMM12 15
// new insn type for insn cache
#define INST_TYPE_RD_R1_SPECIAL 16
// new insn type for msrclr, msrset insns.
#define INST_TYPE_RD_IMM14 17
// new insn type for tuqula rd - addik rd, r0, 42
#define INST_TYPE_RD 18
#define INST_TYPE_NONE 25
#define INST_PC_OFFSET 1 /* instructions where the label address is resolved as a PC offset (for branch label)*/
#define INST_NO_OFFSET 0 /* instructions where the label address is resolved as an absolute value (for data mem or abs address)*/
#define IMMVAL_MASK_NON_SPECIAL 0x0000
#define IMMVAL_MASK_MTS 0x4000
#define IMMVAL_MASK_MFS 0x0000
#define OPCODE_MASK_H 0xFC000000 /* High 6 bits only */
#define OPCODE_MASK_H1 0xFFE00000 /* High 11 bits */
#define OPCODE_MASK_H2 0xFC1F0000 /* High 6 and bits 20-16 */
#define OPCODE_MASK_H12 0xFFFF0000 /* High 16 */
#define OPCODE_MASK_H4 0xFC0007FF /* High 6 and low 11 bits */
#define OPCODE_MASK_H13S 0xFFE0FFF0 /* High 11 and 15:1 bits and last nibble of last byte for spr */
#define OPCODE_MASK_H23S 0xFC1FFFF0 /* High 6, 20-16 and 15:1 bits and last nibble of last byte for spr */
#define OPCODE_MASK_H34 0xFC00FFFF /* High 6 and low 16 bits */
#define OPCODE_MASK_H14 0xFFE007FF /* High 11 and low 11 bits */
#define OPCODE_MASK_H24 0xFC1F07FF /* High 6, bits 20-16 and low 11 bits */
#define OPCODE_MASK_H124 0xFFFF07FF /* High 16, and low 11 bits */
#define OPCODE_MASK_H1234 0xFFFFFFFF /* All 32 bits */
#define OPCODE_MASK_H3 0xFC000600 /* High 6 bits and bits 21, 22 */
#define OPCODE_MASK_H32 0xFC00F000 /* High 6 bits and bit 16, 17, 18 and 19*/
#define OPCODE_MASK_H34B 0xFC0000FF /* High 6 bits and low 8 bits */
// New Mask for msrset, msrclr insns.
#define OPCODE_MASK_H23N 0xFC1FC000 /* High 6 and bits 12 - 18 */
#define DELAY_SLOT 1
#define NO_DELAY_SLOT 0
#define MAX_OPCODES 149
struct op_code_struct {
const char *name;
short inst_type; /* registers and immediate values involved */
short inst_offset_type; /* immediate vals offset from PC? (= 1 for branches) */
short delay_slots; /* info about delay slots needed after this instr. */
short immval_mask;
unsigned long bit_sequence; /* all the fixed bits for the op are set and all the variable bits (reg names, imm vals) are set to 0 */
unsigned long opcode_mask; /* which bits define the opcode */
enum microblaze_instr instr;
enum microblaze_instr_type instr_type;
/* more info about output format here */
} opcodes[MAX_OPCODES] =
{
{"add", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x00000000, OPCODE_MASK_H4, add, arithmetic_inst },
{"rsub", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x04000000, OPCODE_MASK_H4, rsub, arithmetic_inst },
{"addc", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x08000000, OPCODE_MASK_H4, addc, arithmetic_inst },
{"rsubc", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x0C000000, OPCODE_MASK_H4, rsubc, arithmetic_inst },
{"addk", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x10000000, OPCODE_MASK_H4, addk, arithmetic_inst },
{"rsubk", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x14000000, OPCODE_MASK_H4, rsubk, arithmetic_inst },
{"cmp", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x14000001, OPCODE_MASK_H4, cmp, arithmetic_inst },
{"cmpu", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x14000003, OPCODE_MASK_H4, cmpu, arithmetic_inst },
{"addkc", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x18000000, OPCODE_MASK_H4, addkc, arithmetic_inst },
{"rsubkc",INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x1C000000, OPCODE_MASK_H4, rsubkc, arithmetic_inst },
{"addi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x20000000, OPCODE_MASK_H, addi, arithmetic_inst },
{"rsubi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x24000000, OPCODE_MASK_H, rsubi, arithmetic_inst },
{"addic", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x28000000, OPCODE_MASK_H, addic, arithmetic_inst },
{"rsubic",INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x2C000000, OPCODE_MASK_H, rsubic, arithmetic_inst },
{"addik", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x30000000, OPCODE_MASK_H, addik, arithmetic_inst },
{"rsubik",INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x34000000, OPCODE_MASK_H, rsubik, arithmetic_inst },
{"addikc",INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x38000000, OPCODE_MASK_H, addikc, arithmetic_inst },
{"rsubikc",INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x3C000000, OPCODE_MASK_H, rsubikc, arithmetic_inst },
{"mul", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x40000000, OPCODE_MASK_H4, mul, mult_inst },
{"idiv", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x48000000, OPCODE_MASK_H4, idiv, div_inst },
{"idivu", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x48000002, OPCODE_MASK_H4, idivu, div_inst },
{"bsll", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x44000400, OPCODE_MASK_H3, bsll, barrel_shift_inst },
{"bsra", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x44000200, OPCODE_MASK_H3, bsra, barrel_shift_inst },
{"bsrl", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x44000000, OPCODE_MASK_H3, bsrl, barrel_shift_inst },
{"get", INST_TYPE_RD_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C000000, OPCODE_MASK_H32, get, anyware_inst },
{"put", INST_TYPE_R1_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C008000, OPCODE_MASK_H32, put, anyware_inst },
{"nget", INST_TYPE_RD_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C004000, OPCODE_MASK_H32, nget, anyware_inst },
{"nput", INST_TYPE_R1_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C00C000, OPCODE_MASK_H32, nput, anyware_inst },
{"cget", INST_TYPE_RD_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C002000, OPCODE_MASK_H32, cget, anyware_inst },
{"cput", INST_TYPE_R1_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C00A000, OPCODE_MASK_H32, cput, anyware_inst },
{"ncget", INST_TYPE_RD_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C006000, OPCODE_MASK_H32, ncget, anyware_inst },
{"ncput", INST_TYPE_R1_IMM12, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C00E000, OPCODE_MASK_H32, ncput, anyware_inst },
{"muli", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x60000000, OPCODE_MASK_H, muli, mult_inst },
{"bslli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000400, OPCODE_MASK_H3, bslli, barrel_shift_inst },
{"bsrai", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000200, OPCODE_MASK_H3, bsrai, barrel_shift_inst },
{"bsrli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000000, OPCODE_MASK_H3, bsrli, barrel_shift_inst },
{"or", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x80000000, OPCODE_MASK_H4, or, logical_inst },
{"and", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x84000000, OPCODE_MASK_H4, and, logical_inst },
{"xor", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x88000000, OPCODE_MASK_H4, xor, logical_inst },
{"andn", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x8C000000, OPCODE_MASK_H4, andn, logical_inst },
{"pcmpbf",INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x80000400, OPCODE_MASK_H4, pcmpbf, logical_inst },
{"pcmpbc",INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x84000400, OPCODE_MASK_H4, pcmpbc, logical_inst },
{"pcmpeq",INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x88000400, OPCODE_MASK_H4, pcmpeq, logical_inst },
{"pcmpne",INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x8C000400, OPCODE_MASK_H4, pcmpne, logical_inst },
{"sra", INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000001, OPCODE_MASK_H34, sra, logical_inst },
{"src", INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000021, OPCODE_MASK_H34, src, logical_inst },
{"srl", INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000041, OPCODE_MASK_H34, srl, logical_inst },
{"sext8", INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000060, OPCODE_MASK_H34, sext8, logical_inst },
{"sext16",INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000061, OPCODE_MASK_H34, sext16, logical_inst },
{"wic", INST_TYPE_RD_R1_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000068, OPCODE_MASK_H34B, wic, special_inst },
{"wdc", INST_TYPE_RD_R1_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000064, OPCODE_MASK_H34B, wdc, special_inst },
{"mts", INST_TYPE_SPECIAL_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MTS, 0x9400C000, OPCODE_MASK_H13S, mts, special_inst },
{"mfs", INST_TYPE_RD_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MFS, 0x94008000, OPCODE_MASK_H23S, mfs, special_inst },
{"br", INST_TYPE_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98000000, OPCODE_MASK_H124, br, branch_inst },
{"brd", INST_TYPE_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98100000, OPCODE_MASK_H124, brd, branch_inst },
{"brld", INST_TYPE_RD_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98140000, OPCODE_MASK_H24, brld, branch_inst },
{"bra", INST_TYPE_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98080000, OPCODE_MASK_H124, bra, branch_inst },
{"brad", INST_TYPE_R2, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98180000, OPCODE_MASK_H124, brad, branch_inst },
{"brald", INST_TYPE_RD_R2, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x981C0000, OPCODE_MASK_H24, brald, branch_inst },
{"brk", INST_TYPE_RD_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x980C0000, OPCODE_MASK_H24, microblaze_brk, branch_inst },
{"beq", INST_TYPE_R1_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9C000000, OPCODE_MASK_H14, beq, branch_inst },
{"beqd", INST_TYPE_R1_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9E000000, OPCODE_MASK_H14, beqd, branch_inst },
{"bne", INST_TYPE_R1_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9C200000, OPCODE_MASK_H14, bne, branch_inst },
{"bned", INST_TYPE_R1_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9E200000, OPCODE_MASK_H14, bned, branch_inst },
{"blt", INST_TYPE_R1_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9C400000, OPCODE_MASK_H14, blt, branch_inst },
{"bltd", INST_TYPE_R1_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9E400000, OPCODE_MASK_H14, bltd, branch_inst },
{"ble", INST_TYPE_R1_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9C600000, OPCODE_MASK_H14, ble, branch_inst },
{"bled", INST_TYPE_R1_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9E600000, OPCODE_MASK_H14, bled, branch_inst },
{"bgt", INST_TYPE_R1_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9C800000, OPCODE_MASK_H14, bgt, branch_inst },
{"bgtd", INST_TYPE_R1_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9E800000, OPCODE_MASK_H14, bgtd, branch_inst },
{"bge", INST_TYPE_R1_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9CA00000, OPCODE_MASK_H14, bge, branch_inst },
{"bged", INST_TYPE_R1_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x9EA00000, OPCODE_MASK_H14, bged, branch_inst },
{"ori", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xA0000000, OPCODE_MASK_H, ori, logical_inst },
{"andi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xA4000000, OPCODE_MASK_H, andi, logical_inst },
{"xori", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xA8000000, OPCODE_MASK_H, xori, logical_inst },
{"andni", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xAC000000, OPCODE_MASK_H, andni, logical_inst },
{"imm", INST_TYPE_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB0000000, OPCODE_MASK_H12, imm, immediate_inst },
{"rtsd", INST_TYPE_R1_IMM, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB6000000, OPCODE_MASK_H1, rtsd, return_inst },
{"rtid", INST_TYPE_R1_IMM, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB6200000, OPCODE_MASK_H1, rtid, return_inst },
{"rtbd", INST_TYPE_R1_IMM, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB6400000, OPCODE_MASK_H1, rtbd, return_inst },
{"rted", INST_TYPE_R1_IMM, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB6800000, OPCODE_MASK_H1, rted, return_inst },
{"bri", INST_TYPE_IMM, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB8000000, OPCODE_MASK_H12, bri, branch_inst },
{"brid", INST_TYPE_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB8100000, OPCODE_MASK_H12, brid, branch_inst },
{"brlid", INST_TYPE_RD_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB8140000, OPCODE_MASK_H2, brlid, branch_inst },
{"brai", INST_TYPE_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB8080000, OPCODE_MASK_H12, brai, branch_inst },
{"braid", INST_TYPE_IMM, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB8180000, OPCODE_MASK_H12, braid, branch_inst },
{"bralid",INST_TYPE_RD_IMM, INST_NO_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB81C0000, OPCODE_MASK_H2, bralid, branch_inst },
{"brki", INST_TYPE_RD_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB80C0000, OPCODE_MASK_H2, brki, branch_inst },
{"beqi", INST_TYPE_R1_IMM, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBC000000, OPCODE_MASK_H1, beqi, branch_inst },
{"beqid", INST_TYPE_R1_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBE000000, OPCODE_MASK_H1, beqid, branch_inst },
{"bnei", INST_TYPE_R1_IMM, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBC200000, OPCODE_MASK_H1, bnei, branch_inst },
{"bneid", INST_TYPE_R1_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBE200000, OPCODE_MASK_H1, bneid, branch_inst },
{"blti", INST_TYPE_R1_IMM, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBC400000, OPCODE_MASK_H1, blti, branch_inst },
{"bltid", INST_TYPE_R1_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBE400000, OPCODE_MASK_H1, bltid, branch_inst },
{"blei", INST_TYPE_R1_IMM, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBC600000, OPCODE_MASK_H1, blei, branch_inst },
{"bleid", INST_TYPE_R1_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBE600000, OPCODE_MASK_H1, bleid, branch_inst },
{"bgti", INST_TYPE_R1_IMM, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBC800000, OPCODE_MASK_H1, bgti, branch_inst },
{"bgtid", INST_TYPE_R1_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBE800000, OPCODE_MASK_H1, bgtid, branch_inst },
{"bgei", INST_TYPE_R1_IMM, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBCA00000, OPCODE_MASK_H1, bgei, branch_inst },
{"bgeid", INST_TYPE_R1_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBEA00000, OPCODE_MASK_H1, bgeid, branch_inst },
{"lbu", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC0000000, OPCODE_MASK_H4, lbu, memory_load_inst },
{"lhu", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC4000000, OPCODE_MASK_H4, lhu, memory_load_inst },
{"lw", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC8000000, OPCODE_MASK_H4, lw, memory_load_inst },
{"sb", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD0000000, OPCODE_MASK_H4, sb, memory_store_inst },
{"sh", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD4000000, OPCODE_MASK_H4, sh, memory_store_inst },
{"sw", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD8000000, OPCODE_MASK_H4, sw, memory_store_inst },
{"lbui", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xE0000000, OPCODE_MASK_H, lbui, memory_load_inst },
{"lhui", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xE4000000, OPCODE_MASK_H, lhui, memory_load_inst },
{"lwi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xE8000000, OPCODE_MASK_H, lwi, memory_load_inst },
{"sbi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xF0000000, OPCODE_MASK_H, sbi, memory_store_inst },
{"shi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xF4000000, OPCODE_MASK_H, shi, memory_store_inst },
{"swi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xF8000000, OPCODE_MASK_H, swi, memory_store_inst },
{"nop", INST_TYPE_NONE, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x80000000, OPCODE_MASK_H1234, invalid_inst, logical_inst }, /* translates to or r0, r0, r0 */
{"la", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x30000000, OPCODE_MASK_H, invalid_inst, arithmetic_inst }, /* la translates to addik */
{"tuqula",INST_TYPE_RD, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x3000002A, OPCODE_MASK_H, invalid_inst, arithmetic_inst }, /* tuqula rd translates to addik rd, r0, 42 */
{"not", INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xA800FFFF, OPCODE_MASK_H34, invalid_inst, logical_inst }, /* not translates to xori rd,ra,-1 */
{"neg", INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x04000000, OPCODE_MASK_H, invalid_inst, arithmetic_inst }, /* neg translates to rsub rd, ra, r0 */
{"rtb", INST_TYPE_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB6000004, OPCODE_MASK_H1, invalid_inst, return_inst }, /* rtb translates to rts rd, 4 */
{"sub", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x04000000, OPCODE_MASK_H, invalid_inst, arithmetic_inst }, /* sub translates to rsub rd, rb, ra */
{"lmi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xE8000000, OPCODE_MASK_H, invalid_inst, memory_load_inst },
{"smi", INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xF8000000, OPCODE_MASK_H, invalid_inst, memory_store_inst },
{"msrset",INST_TYPE_RD_IMM14, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x94100000, OPCODE_MASK_H23N, msrset, special_inst },
{"msrclr",INST_TYPE_RD_IMM14, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x94110000, OPCODE_MASK_H23N, msrclr, special_inst },
{"fadd", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000000, OPCODE_MASK_H4, fadd, arithmetic_inst },
{"frsub", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000080, OPCODE_MASK_H4, frsub, arithmetic_inst },
{"fmul", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000100, OPCODE_MASK_H4, fmul, arithmetic_inst },
{"fdiv", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000180, OPCODE_MASK_H4, fdiv, arithmetic_inst },
{"fcmp.lt", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000210, OPCODE_MASK_H4, fcmp_lt, arithmetic_inst },
{"fcmp.eq", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000220, OPCODE_MASK_H4, fcmp_eq, arithmetic_inst },
{"fcmp.le", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000230, OPCODE_MASK_H4, fcmp_le, arithmetic_inst },
{"fcmp.gt", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000240, OPCODE_MASK_H4, fcmp_gt, arithmetic_inst },
{"fcmp.ne", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000250, OPCODE_MASK_H4, fcmp_ne, arithmetic_inst },
{"fcmp.ge", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000260, OPCODE_MASK_H4, fcmp_ge, arithmetic_inst },
{"fcmp.un", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x58000200, OPCODE_MASK_H4, fcmp_un, arithmetic_inst },
{""}
};
/* prefix for register names */
char register_prefix[] = "r";
char special_register_prefix[] = "spr";
char fsl_register_prefix[] = "rfsl";
/* #defines for valid immediate range */
#define MIN_IMM 0x80000000
#define MAX_IMM 0x7fffffff
#define MIN_IMM12 0x000
#define MAX_IMM12 0x7ff
#define MIN_IMM14 0x0000
#define MAX_IMM14 0x1fff
#endif /* MICROBLAZE_OPC */
#include "dis-asm.h"
#include <strings.h>
#define get_field_rd(instr) get_field(instr, RD_MASK, RD_LOW)
#define get_field_r1(instr) get_field(instr, RA_MASK, RA_LOW)
#define get_field_r2(instr) get_field(instr, RB_MASK, RB_LOW)
#define get_int_field_imm(instr) ((instr & IMM_MASK) >> IMM_LOW)
#define get_int_field_r1(instr) ((instr & RA_MASK) >> RA_LOW)
static char *
get_field (long instr, long mask, unsigned short low)
{
char tmpstr[25];
sprintf(tmpstr, "%s%d", register_prefix, (int)((instr & mask) >> low));
return(strdup(tmpstr));
}
static char *
get_field_imm (long instr)
{
char tmpstr[25];
sprintf(tmpstr, "%d", (short)((instr & IMM_MASK) >> IMM_LOW));
return(strdup(tmpstr));
}
static char *
get_field_imm5 (long instr)
{
char tmpstr[25];
sprintf(tmpstr, "%d", (short)((instr & IMM5_MASK) >> IMM_LOW));
return(strdup(tmpstr));
}
static char *
get_field_imm12 (long instr)
{
char tmpstr[25];
sprintf(tmpstr, "%s%d", fsl_register_prefix, (short)((instr & IMM12_MASK) >> IMM_LOW));
return(strdup(tmpstr));
}
static char *
get_field_imm14 (long instr)
{
char tmpstr[25];
sprintf(tmpstr, "%d", (short)((instr & IMM14_MASK) >> IMM_LOW));
return(strdup(tmpstr));
}
#if 0
static char *
get_field_unsigned_imm (long instr)
{
char tmpstr[25];
sprintf(tmpstr, "%d", (int)((instr & IMM_MASK) >> IMM_LOW));
return(strdup(tmpstr));
}
#endif
/*
char *
get_field_special (instr)
long instr;
{
char tmpstr[25];
sprintf(tmpstr, "%s%s", register_prefix, (((instr & IMM_MASK) >> IMM_LOW) & REG_MSR_MASK) == 0 ? "pc" : "msr");
return(strdup(tmpstr));
}
*/
static char *
get_field_special (long instr, struct op_code_struct * op)
{
char tmpstr[25];
char spr[5];
switch ( (((instr & IMM_MASK) >> IMM_LOW) ^ op->immval_mask) ) {
case REG_MSR_MASK :
strcpy(spr, "msr");
break;
case REG_PC_MASK :
strcpy(spr, "pc");
break;
case REG_EAR_MASK :
strcpy(spr, "ear");
break;
case REG_ESR_MASK :
strcpy(spr, "esr");
break;
case REG_FSR_MASK :
strcpy(spr, "fsr");
break;
default :
strcpy(spr, "pc");
break;
}
sprintf(tmpstr, "%s%s", register_prefix, spr);
return(strdup(tmpstr));
}
static unsigned long
read_insn_microblaze(bfd_vma memaddr, struct disassemble_info *info,
struct op_code_struct ** opr)
{
unsigned char ibytes[4];
int status;
struct op_code_struct * op;
unsigned long inst;
status = info->read_memory_func (memaddr, ibytes, 4, info);
if (status != 0)
{
info->memory_error_func (status, memaddr, info);
return 0;
}
if (info->endian == BFD_ENDIAN_BIG)
inst = (ibytes[0] << 24) | (ibytes[1] << 16) | (ibytes[2] << 8) | ibytes[3];
else if (info->endian == BFD_ENDIAN_LITTLE)
inst = (ibytes[3] << 24) | (ibytes[2] << 16) | (ibytes[1] << 8) | ibytes[0];
else
abort ();
/* Just a linear search of the table. */
for (op = opcodes; op->name != 0; op ++)
if (op->bit_sequence == (inst & op->opcode_mask))
break;
*opr = op;
return inst;
}
int
print_insn_microblaze (bfd_vma memaddr, struct disassemble_info * info)
{
fprintf_ftype fprintf = info->fprintf_func;
void * stream = info->stream;
unsigned long inst, prev_inst;
struct op_code_struct * op, *pop;
int immval = 0;
boolean immfound = false;
static bfd_vma prev_insn_addr = -1; /*init the prev insn addr */
static int prev_insn_vma = -1; /*init the prev insn vma */
int curr_insn_vma = info->buffer_vma;
info->bytes_per_chunk = 4;
inst = read_insn_microblaze (memaddr, info, &op);
if (inst == 0)
return -1;
if (prev_insn_vma == curr_insn_vma) {
if (memaddr-(info->bytes_per_chunk) == prev_insn_addr) {
prev_inst = read_insn_microblaze (prev_insn_addr, info, &pop);
if (prev_inst == 0)
return -1;
if (pop->instr == imm) {
immval = (get_int_field_imm(prev_inst) << 16) & 0xffff0000;
immfound = true;
}
else {
immval = 0;
immfound = false;
}
}
}
/* make curr insn as prev insn */
prev_insn_addr = memaddr;
prev_insn_vma = curr_insn_vma;
if (op->name == 0)
fprintf (stream, ".short 0x%04x", inst);
else
{
fprintf (stream, "%s", op->name);
switch (op->inst_type)
{
case INST_TYPE_RD_R1_R2:
fprintf(stream, "\t%s, %s, %s", get_field_rd(inst), get_field_r1(inst), get_field_r2(inst));
break;
case INST_TYPE_RD_R1_IMM:
fprintf(stream, "\t%s, %s, %s", get_field_rd(inst), get_field_r1(inst), get_field_imm(inst));
if (info->print_address_func && get_int_field_r1(inst) == 0 && info->symbol_at_address_func) {
if (immfound)
immval |= (get_int_field_imm(inst) & 0x0000ffff);
else {
immval = get_int_field_imm(inst);
if (immval & 0x8000)
immval |= 0xFFFF0000;
}
if (immval > 0 && info->symbol_at_address_func(immval, info)) {
fprintf (stream, "\t// ");
info->print_address_func (immval, info);
}
}
break;
case INST_TYPE_RD_R1_IMM5:
fprintf(stream, "\t%s, %s, %s", get_field_rd(inst), get_field_r1(inst), get_field_imm5(inst));
break;
case INST_TYPE_RD_IMM12:
fprintf(stream, "\t%s, %s", get_field_rd(inst), get_field_imm12(inst));
break;
case INST_TYPE_R1_IMM12:
fprintf(stream, "\t%s, %s", get_field_r1(inst), get_field_imm12(inst));
break;
case INST_TYPE_RD_SPECIAL:
fprintf(stream, "\t%s, %s", get_field_rd(inst), get_field_special(inst, op));
break;
case INST_TYPE_SPECIAL_R1:
fprintf(stream, "\t%s, %s", get_field_special(inst, op), get_field_r1(inst));
break;
case INST_TYPE_RD_R1:
fprintf(stream, "\t%s, %s", get_field_rd(inst), get_field_r1(inst));
break;
case INST_TYPE_R1_R2:
fprintf(stream, "\t%s, %s", get_field_r1(inst), get_field_r2(inst));
break;
case INST_TYPE_R1_IMM:
fprintf(stream, "\t%s, %s", get_field_r1(inst), get_field_imm(inst));
/* The non-pc relative instructions are returns, which shouldn't
have a label printed */
if (info->print_address_func && op->inst_offset_type == INST_PC_OFFSET && info->symbol_at_address_func) {
if (immfound)
immval |= (get_int_field_imm(inst) & 0x0000ffff);
else {
immval = get_int_field_imm(inst);
if (immval & 0x8000)
immval |= 0xFFFF0000;
}
immval += memaddr;
if (immval > 0 && info->symbol_at_address_func(immval, info)) {
fprintf (stream, "\t// ");
info->print_address_func (immval, info);
} else {
fprintf (stream, "\t\t// ");
fprintf (stream, "%x", immval);
}
}
break;
case INST_TYPE_RD_IMM:
fprintf(stream, "\t%s, %s", get_field_rd(inst), get_field_imm(inst));
if (info->print_address_func && info->symbol_at_address_func) {
if (immfound)
immval |= (get_int_field_imm(inst) & 0x0000ffff);
else {
immval = get_int_field_imm(inst);
if (immval & 0x8000)
immval |= 0xFFFF0000;
}
if (op->inst_offset_type == INST_PC_OFFSET)
immval += (int) memaddr;
if (info->symbol_at_address_func(immval, info)) {
fprintf (stream, "\t// ");
info->print_address_func (immval, info);
}
}
break;
case INST_TYPE_IMM:
fprintf(stream, "\t%s", get_field_imm(inst));
if (info->print_address_func && info->symbol_at_address_func && op->instr != imm) {
if (immfound)
immval |= (get_int_field_imm(inst) & 0x0000ffff);
else {
immval = get_int_field_imm(inst);
if (immval & 0x8000)
immval |= 0xFFFF0000;
}
if (op->inst_offset_type == INST_PC_OFFSET)
immval += (int) memaddr;
if (immval > 0 && info->symbol_at_address_func(immval, info)) {
fprintf (stream, "\t// ");
info->print_address_func (immval, info);
} else if (op->inst_offset_type == INST_PC_OFFSET) {
fprintf (stream, "\t\t// ");
fprintf (stream, "%x", immval);
}
}
break;
case INST_TYPE_RD_R2:
fprintf(stream, "\t%s, %s", get_field_rd(inst), get_field_r2(inst));
break;
case INST_TYPE_R2:
fprintf(stream, "\t%s", get_field_r2(inst));
break;
case INST_TYPE_R1:
fprintf(stream, "\t%s", get_field_r1(inst));
break;
case INST_TYPE_RD_R1_SPECIAL:
fprintf(stream, "\t%s, %s", get_field_rd(inst), get_field_r2(inst));
break;
case INST_TYPE_RD_IMM14:
fprintf(stream, "\t%s, %s", get_field_rd(inst), get_field_imm14(inst));
break;
/* For tuqula instruction */
case INST_TYPE_RD:
fprintf(stream, "\t%s", get_field_rd(inst));
break;
default:
/* if the disassembler lags the instruction set */
fprintf (stream, "\tundecoded operands, inst is 0x%04x", inst);
break;
}
}
/* Say how many bytes we consumed? */
return 4;
}
#if 0
static enum microblaze_instr
get_insn_microblaze (long inst, boolean *isunsignedimm,
enum microblaze_instr_type *insn_type,
short *delay_slots )
{
struct op_code_struct * op;
*isunsignedimm = false;
/* Just a linear search of the table. */
for (op = opcodes; op->name != 0; op ++)
if (op->bit_sequence == (inst & op->opcode_mask))
break;
if (op->name == 0)
return invalid_inst;
else {
*isunsignedimm = (op->inst_type == INST_TYPE_RD_R1_UNSIGNED_IMM);
*insn_type = op->instr_type;
*delay_slots = op->delay_slots;
return op->instr;
}
}
#endif
#if 0
static short
get_delay_slots_microblaze ( long inst )
{
boolean isunsignedimm;
enum microblaze_instr_type insn_type;
enum microblaze_instr op;
short delay_slots;
op = get_insn_microblaze( inst, &isunsignedimm, &insn_type, &delay_slots);
if (op == invalid_inst)
return 0;
else
return delay_slots;
}
#endif
#if 0
static enum microblaze_instr
microblaze_decode_insn (long insn, int *rd, int *ra, int *rb, int *imm)
{
enum microblaze_instr op;
boolean t1;
enum microblaze_instr_type t2;
short t3;
op = get_insn_microblaze(insn, &t1, &t2, &t3);
*rd = (insn & RD_MASK) >> RD_LOW;
*ra = (insn & RA_MASK) >> RA_LOW;
*rb = (insn & RB_MASK) >> RB_LOW;
t3 = (insn & IMM_MASK) >> IMM_LOW;
*imm = (int) t3;
return (op);
}
#endif
#if 0
static unsigned long
microblaze_get_target_address (long inst, boolean immfound, int immval,
long pcval, long r1val, long r2val,
boolean *targetvalid,
boolean *unconditionalbranch)
{
struct op_code_struct * op;
long targetaddr = 0;
*unconditionalbranch = false;
/* Just a linear search of the table. */
for (op = opcodes; op->name != 0; op ++)
if (op->bit_sequence == (inst & op->opcode_mask))
break;
if (op->name == 0) {
*targetvalid = false;
} else if (op->instr_type == branch_inst) {
switch (op->inst_type) {
case INST_TYPE_R2:
*unconditionalbranch = true;
/* fallthru */
case INST_TYPE_RD_R2:
case INST_TYPE_R1_R2:
targetaddr = r2val;
*targetvalid = true;
if (op->inst_offset_type == INST_PC_OFFSET)
targetaddr += pcval;
break;
case INST_TYPE_IMM:
*unconditionalbranch = true;
/* fallthru */
case INST_TYPE_RD_IMM:
case INST_TYPE_R1_IMM:
if (immfound) {
targetaddr = (immval << 16) & 0xffff0000;
targetaddr |= (get_int_field_imm(inst) & 0x0000ffff);
} else {
targetaddr = get_int_field_imm(inst);
if (targetaddr & 0x8000)
targetaddr |= 0xFFFF0000;
}
if (op->inst_offset_type == INST_PC_OFFSET)
targetaddr += pcval;
*targetvalid = true;
break;
default:
*targetvalid = false;
break;
}
} else if (op->instr_type == return_inst) {
if (immfound) {
targetaddr = (immval << 16) & 0xffff0000;
targetaddr |= (get_int_field_imm(inst) & 0x0000ffff);
} else {
targetaddr = get_int_field_imm(inst);
if (targetaddr & 0x8000)
targetaddr |= 0xFFFF0000;
}
targetaddr += r1val;
*targetvalid = true;
} else {
*targetvalid = false;
}
return targetaddr;
}
#endif
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