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Diffstat (limited to 'microblaze-dis.c')
| -rwxr-xr-x | microblaze-dis.c | 846 |
1 files changed, 846 insertions, 0 deletions
diff --git a/microblaze-dis.c b/microblaze-dis.c new file mode 100755 index 0000000000..0caacc0bc2 --- /dev/null +++ b/microblaze-dis.c @@ -0,0 +1,846 @@ +/* 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 +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* + * 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 +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* + * 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 |