mirror of
https://github.com/autc04/Retro68.git
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3386 lines
86 KiB
C
3386 lines
86 KiB
C
/* Disassemble Imagination Technologies Meta instructions.
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Copyright (C) 2013-2017 Free Software Foundation, Inc.
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Contributed by Imagination Technologies Ltd.
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "dis-asm.h"
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#include "opintl.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "opcode/metag.h"
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/* Column widths for printing. */
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#define PREFIX_WIDTH "10"
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#define INSN_NAME_WIDTH "10"
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#define OPERAND_WIDTH 92
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#define ADDR_WIDTH 20
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#define REG_WIDTH 64
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#define DSP_PREFIX_WIDTH 17
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/* Value to print if we fail to parse a register name. */
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const char unknown_reg[] = "?";
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/* Return the size of a GET or SET instruction. */
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unsigned int
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metag_get_set_size_bytes (unsigned int opcode)
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{
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switch (((opcode) >> 24) & 0x5)
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{
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case 0x5:
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return 8;
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case 0x4:
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return 4;
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case 0x1:
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return 2;
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case 0x0:
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return 1;
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}
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return 1;
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}
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/* Return the size of an extended GET or SET instruction. */
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unsigned int
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metag_get_set_ext_size_bytes (unsigned int opcode)
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{
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switch (((opcode) >> 1) & 0x3)
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{
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case 0x3:
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return 8;
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case 0x2:
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return 4;
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case 0x1:
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return 2;
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case 0x0:
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return 1;
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}
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return 1;
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}
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/* Return the size of a conditional SET instruction. */
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unsigned int
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metag_cond_set_size_bytes (unsigned int opcode)
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{
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switch (opcode & 0x201)
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{
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case 0x201:
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return 8;
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case 0x200:
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return 4;
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case 0x001:
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return 2;
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case 0x000:
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return 1;
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}
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return 1;
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}
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/* Return a value sign-extended. */
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static int
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sign_extend (int n, unsigned int bits)
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{
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int mask = 1 << (bits - 1);
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return -(n & mask) | n;
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}
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/* Return the short interpretation of UNIT. */
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static unsigned int
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short_unit (unsigned int unit)
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{
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if (unit == UNIT_CT)
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return UNIT_A1;
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else
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return unit;
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}
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/* Return the register corresponding to UNIT and NUMBER or NULL. */
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static const metag_reg *
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lookup_reg (unsigned int unit, unsigned int number)
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{
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size_t i;
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for (i = 0; i < sizeof(metag_regtab)/sizeof(metag_regtab[0]); i++)
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{
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const metag_reg *reg = &metag_regtab[i];
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if (reg->unit == unit && reg->no == number)
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return reg;
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}
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return NULL;
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}
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/* Return the register name corresponding to UNIT and NUMBER or NULL. */
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static const char *
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lookup_reg_name (unsigned int unit, unsigned int number)
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{
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const metag_reg *reg;
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reg = lookup_reg (unit, number);
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if (reg)
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return reg->name;
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else
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return unknown_reg;
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}
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/* Return the unit that is the pair of UNIT. */
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static unsigned int
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get_pair_unit (unsigned int unit)
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{
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switch (unit)
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{
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case UNIT_D0:
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return UNIT_D1;
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case UNIT_D1:
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return UNIT_D0;
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case UNIT_A0:
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return UNIT_A1;
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case UNIT_A1:
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return UNIT_A0;
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default:
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return unit;
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}
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}
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/* Return the name of the pair register for UNIT and NUMBER or NULL. */
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static const char *
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lookup_pair_reg_name (unsigned int unit, unsigned int number)
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{
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if (unit == UNIT_FX)
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return lookup_reg_name (unit, number + 1);
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else
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return lookup_reg_name (get_pair_unit (unit), number);
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}
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/* Return the name of the accumulator register for PART. */
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static const char *
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lookup_acf_name (unsigned int part)
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{
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size_t i;
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for (i = 0; i < sizeof(metag_acftab)/sizeof(metag_acftab[0]); i++)
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{
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const metag_acf *acf = &metag_acftab[i];
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if (acf->part == part)
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return acf->name;
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}
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return "ACF.?";
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}
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/* Return the register name for the O2R register for UNIT and NUMBER. */
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static const char *
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lookup_o2r (enum metag_unit unit, unsigned int number)
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{
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unsigned int o2r_unit;
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enum metag_unit actual_unit = UNIT_A0;
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const metag_reg *reg;
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o2r_unit = (number & ~O2R_REG_MASK) >> 3;
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number = number & O2R_REG_MASK;
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if (unit == UNIT_A0)
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{
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switch (o2r_unit)
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{
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case 0:
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actual_unit = UNIT_A1;
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break;
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case 1:
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actual_unit = UNIT_D0;
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break;
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case 2:
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actual_unit = UNIT_RD;
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break;
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case 3:
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actual_unit = UNIT_D1;
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break;
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}
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}
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else if (unit == UNIT_A1)
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{
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switch (o2r_unit)
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{
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case 0:
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actual_unit = UNIT_D1;
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break;
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case 1:
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actual_unit = UNIT_D0;
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break;
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case 2:
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actual_unit = UNIT_RD;
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break;
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case 3:
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actual_unit = UNIT_A0;
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break;
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}
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}
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else if (unit == UNIT_D0)
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{
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switch (o2r_unit)
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{
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case 0:
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actual_unit = UNIT_A1;
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break;
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case 1:
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actual_unit = UNIT_D1;
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break;
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case 2:
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actual_unit = UNIT_RD;
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break;
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case 3:
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actual_unit = UNIT_A0;
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break;
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}
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}
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else if (unit == UNIT_D1)
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{
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switch (o2r_unit)
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{
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case 0:
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actual_unit = UNIT_A1;
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break;
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case 1:
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actual_unit = UNIT_D0;
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break;
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case 2:
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actual_unit = UNIT_RD;
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break;
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case 3:
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actual_unit = UNIT_A0;
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break;
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}
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}
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reg = lookup_reg (actual_unit, number);
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if (reg)
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return reg->name;
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else
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return unknown_reg;
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}
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/* Return the string for split condition code CODE. */
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static const char *
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lookup_scc_flags (unsigned int code)
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{
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size_t i;
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for (i = 0; i < sizeof (metag_dsp_scondtab) / sizeof (metag_dsp_scondtab[0]); i++)
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{
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if (metag_dsp_scondtab[i].code == code)
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{
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return metag_dsp_scondtab[i].name;
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}
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}
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return NULL;
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}
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/* Return the string for FPU split condition code CODE. */
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static const char *
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lookup_fpu_scc_flags (unsigned int code)
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{
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size_t i;
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for (i = 0; i < sizeof (metag_fpu_scondtab) / sizeof (metag_fpu_scondtab[0]); i++)
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{
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if (metag_fpu_scondtab[i].code == code)
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{
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return metag_fpu_scondtab[i].name;
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}
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}
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return NULL;
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}
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/* Print an instruction with PREFIX, NAME and OPERANDS. */
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static void
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print_insn (disassemble_info *outf, const char *prefix, const char *name,
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const char *operands)
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{
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outf->fprintf_func (outf->stream, "%-" PREFIX_WIDTH "s%-" INSN_NAME_WIDTH "s%s", prefix, name, operands);
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}
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/* Print an instruction with no operands. */
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static void
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print_none (unsigned int insn_word ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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const insn_template *template,
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disassemble_info *outf)
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{
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outf->fprintf_func (outf->stream, "%-" PREFIX_WIDTH "s%s", "",
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template->name);
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}
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/* Print a unit to unit MOV instruction. */
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static void
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print_mov_u2u (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
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const insn_template *template,
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disassemble_info *outf)
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{
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unsigned int dest_unit, dest_no, src_unit, src_no;
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unsigned int is_kick = (insn_word & 0x1) && !((insn_word >> 9) & 0x1);
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unsigned int major = MAJOR_OPCODE (insn_word);
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unsigned int minor = MINOR_OPCODE (insn_word);
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char buf[OPERAND_WIDTH];
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const char *dest_reg;
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const char *src_reg;
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dest_unit = (insn_word >> 5) & UNIT_MASK;
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dest_no = (insn_word >> 14) & REG_MASK;
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dest_reg = lookup_reg_name (dest_unit, dest_no);
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if (is_kick)
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src_unit = UNIT_TR;
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else
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src_unit = (insn_word >> 10) & UNIT_MASK;
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/* This is really an RTI/RTH. No, really. */
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if (major == OPC_MISC &&
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minor == 0x3 &&
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src_unit == 0xf)
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{
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if (insn_word & 0x800000)
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outf->fprintf_func (outf->stream, "%-" PREFIX_WIDTH "s%s", "",
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"RTI");
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else
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outf->fprintf_func (outf->stream, "%-" PREFIX_WIDTH "s%s", "",
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"RTH");
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return;
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}
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src_no = (insn_word >> 19) & REG_MASK;
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src_reg = lookup_reg_name (src_unit, src_no);
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snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
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if (dest_unit == UNIT_FX || src_unit == UNIT_FX)
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print_insn (outf, "F", template->name, buf);
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else
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print_insn (outf, "", template->name, buf);
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}
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/* Print a MOV to port instruction. */
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static void
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print_mov_port (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
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const insn_template *template,
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disassemble_info *outf)
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{
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unsigned int dest_unit, dest1_no, dest2_no, src_unit, src_no;
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unsigned int is_movl = MINOR_OPCODE (insn_word) == MOVL_MINOR;
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char buf[OPERAND_WIDTH];
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const char *dest_reg;
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const char *pair_reg;
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const char *src_reg;
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if (is_movl)
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dest_unit = short_unit ((insn_word >> 5) & SHORT_UNIT_MASK);
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else
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dest_unit = (insn_word >> 5) & UNIT_MASK;
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dest1_no = (insn_word >> 14) & REG_MASK;
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dest2_no = (insn_word >> 9) & REG_MASK;
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dest_reg = lookup_reg_name (dest_unit, dest1_no);
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pair_reg = lookup_pair_reg_name (dest_unit, dest2_no);
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src_unit = UNIT_RD;
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src_no = 0;
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src_reg = lookup_reg_name (src_unit, src_no);
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if (is_movl)
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snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, pair_reg, src_reg);
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else
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snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
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if (dest_unit == UNIT_FX)
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print_insn (outf, "F", template->name, buf);
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else
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print_insn (outf, "", template->name, buf);
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}
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/* Return the number of bits set in rmask. */
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static unsigned int hweight (unsigned int rmask)
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{
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unsigned int count;
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for (count = 0; rmask; count++)
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{
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rmask &= rmask - 1;
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}
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return count;
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}
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/* Print a MOVL to TTREC instruction. */
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static void
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print_movl_ttrec (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
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const insn_template *template,
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disassemble_info *outf)
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{
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unsigned int dest_unit, dest_no, src1_no, src2_no, src_unit;
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char buf[OPERAND_WIDTH];
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const char *dest_reg;
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const char *src_reg;
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const char *pair_reg;
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dest_unit = UNIT_TT;
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dest_no = 3;
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dest_reg = lookup_reg_name (dest_unit, dest_no);
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src1_no = (insn_word >> 19) & REG_MASK;
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src2_no = (insn_word >> 14) & REG_MASK;
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src_unit = short_unit ((insn_word >> 7) & SHORT_UNIT_MASK);
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src_reg = lookup_reg_name (src_unit, src1_no);
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pair_reg = lookup_pair_reg_name (src_unit, src2_no);
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snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, src_reg, pair_reg);
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print_insn (outf, "", template->name, buf);
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}
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/* Format a GET or SET address mode string from INSN_WORD into BUF. */
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static void
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get_set_addr_str (char *buf, unsigned int buf_size, unsigned int size,
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unsigned int insn_word)
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{
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const char *base_reg;
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unsigned int base_unit, base_no;
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unsigned int imm = (insn_word >> 25) & 1;
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unsigned int ua = (insn_word >> 7) & 1;
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unsigned int pp = insn_word & 1;
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base_unit = short_unit ((insn_word >> 5) & SHORT_UNIT_MASK);
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base_no = (insn_word >> 14) & REG_MASK;
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base_reg = lookup_reg_name (base_unit, base_no);
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if (imm)
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{
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int offset = (insn_word >> 8) & GET_SET_IMM_MASK;
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offset = sign_extend (offset, GET_SET_IMM_BITS);
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if (offset == 0)
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{
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snprintf (buf, buf_size, "[%s]", base_reg);
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return;
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}
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if (offset == 1 && ua)
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{
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if (pp)
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snprintf (buf, buf_size, "[%s++]", base_reg);
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else
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snprintf (buf, buf_size, "[++%s]", base_reg);
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return;
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}
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else if (offset == -1 && ua)
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{
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if (pp)
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snprintf (buf, buf_size, "[%s--]", base_reg);
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else
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snprintf (buf, buf_size, "[--%s]", base_reg);
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return;
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}
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offset = offset * size;
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if (ua)
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{
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if (pp)
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snprintf (buf, buf_size, "[%s+#%d++]", base_reg, offset);
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else
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snprintf (buf, buf_size, "[%s++#%d]", base_reg, offset);
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}
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else
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snprintf (buf, buf_size, "[%s+#%d]", base_reg, offset);
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}
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else
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{
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const char *offset_reg;
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unsigned int offset_no;
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offset_no = (insn_word >> 9) & REG_MASK;
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offset_reg = lookup_reg_name (base_unit, offset_no);
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if (ua)
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{
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if (pp)
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snprintf (buf, buf_size, "[%s+%s++]", base_reg, offset_reg);
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else
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snprintf (buf, buf_size, "[%s++%s]", base_reg, offset_reg);
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}
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else
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snprintf (buf, buf_size, "[%s+%s]", base_reg, offset_reg);
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}
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}
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|
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/* Format an extended GET or SET address mode string from INSN_WORD into BUF. */
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|
static void
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get_set_ext_addr_str (char *buf, unsigned int buf_size, unsigned int size,
|
|
unsigned int insn_word)
|
|
{
|
|
const char *base_reg;
|
|
unsigned int base_unit, base_no;
|
|
int offset;
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|
|
base_unit = short_unit ((insn_word >> 5) & SHORT_UNIT_MASK);
|
|
base_no = insn_word & EXT_BASE_REG_MASK;
|
|
|
|
base_reg = lookup_reg_name (base_unit, base_no);
|
|
|
|
offset = (insn_word >> 7) & GET_SET_EXT_IMM_MASK;
|
|
|
|
offset = sign_extend (offset, GET_SET_EXT_IMM_BITS);
|
|
|
|
offset = offset * size;
|
|
|
|
if (offset == 0)
|
|
{
|
|
snprintf (buf, buf_size, "[%s]", base_reg);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, buf_size, "[%s+#%d]", base_reg, offset);
|
|
}
|
|
}
|
|
|
|
/* Format an MGET or MSET address mode string from INSN_WORD into BUF. */
|
|
static void
|
|
mget_mset_addr_str (char *buf, unsigned int buf_size,
|
|
unsigned int insn_word)
|
|
{
|
|
const char *base_reg;
|
|
unsigned int base_unit, base_no;
|
|
|
|
base_unit = short_unit ((insn_word >> 5) & SHORT_UNIT_MASK);
|
|
base_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
base_reg = lookup_reg_name (base_unit, base_no);
|
|
|
|
snprintf (buf, buf_size, "[%s++]", base_reg);
|
|
}
|
|
|
|
/* Format a conditional SET address mode string from INSN_WORD into BUF. */
|
|
static void
|
|
cond_set_addr_str (char *buf, unsigned int buf_size,
|
|
unsigned int insn_word)
|
|
{
|
|
const char *base_reg;
|
|
unsigned int base_unit, base_no;
|
|
|
|
base_unit = short_unit ((insn_word >> 5) & SHORT_UNIT_MASK);
|
|
base_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
base_reg = lookup_reg_name (base_unit, base_no);
|
|
|
|
snprintf (buf, buf_size, "[%s]", base_reg);
|
|
}
|
|
|
|
/* Format a cache instruction address mode string from INSN_WORD into BUF. */
|
|
static void
|
|
cache_addr_str (char *buf, unsigned int buf_size, unsigned int insn_word,
|
|
int width)
|
|
{
|
|
const char *base_reg;
|
|
unsigned int base_unit, base_no;
|
|
int offset;
|
|
|
|
base_unit = short_unit ((insn_word >> 5) & SHORT_UNIT_MASK);
|
|
base_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
base_reg = lookup_reg_name (base_unit, base_no);
|
|
|
|
offset = (insn_word >> 8) & GET_SET_IMM_MASK;
|
|
|
|
offset = sign_extend (offset, GET_SET_IMM_BITS);
|
|
|
|
offset = offset * width;
|
|
|
|
if (offset == 0)
|
|
{
|
|
snprintf (buf, buf_size, "[%s]", base_reg);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, buf_size, "[%s+#%d]", base_reg, offset);
|
|
}
|
|
}
|
|
|
|
/* Format a list of registers starting at REG_UNIT and REG_NO and conforming
|
|
to RMASK into BUF. */
|
|
static void
|
|
lookup_reg_list (char *reg_buf, size_t buf_len, unsigned int reg_unit,
|
|
unsigned int reg_no, unsigned int rmask,
|
|
bfd_boolean is_fpu_64bit)
|
|
{
|
|
const char *regs[MGET_MSET_MAX_REGS];
|
|
size_t used_regs = 1, i, remaining;
|
|
|
|
regs[0] = lookup_reg_name (reg_unit, reg_no);
|
|
|
|
for (i = 1; i < MGET_MSET_MAX_REGS; i++)
|
|
{
|
|
if (rmask & 1)
|
|
{
|
|
if (is_fpu_64bit)
|
|
regs[used_regs] = lookup_reg_name (reg_unit, reg_no + (i * 2));
|
|
else
|
|
regs[used_regs] = lookup_reg_name (reg_unit, reg_no + i);
|
|
used_regs++;
|
|
}
|
|
rmask = rmask >> 1;
|
|
}
|
|
|
|
remaining = buf_len;
|
|
|
|
for (i = 0; i < used_regs; i++)
|
|
{
|
|
size_t len;
|
|
if (i == 0)
|
|
len = snprintf(reg_buf, remaining, "%s", regs[i]);
|
|
else
|
|
len = snprintf(reg_buf, remaining, ",%s", regs[i]);
|
|
|
|
reg_buf += len;
|
|
remaining -= len;
|
|
}
|
|
}
|
|
|
|
/* Print a GET instruction. */
|
|
static void
|
|
print_get (char *buf, char *addr_buf, unsigned int size,
|
|
const char *dest_reg, const char *pair_reg, unsigned int reg_unit,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
if (size == 8)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, pair_reg,
|
|
addr_buf);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, addr_buf);
|
|
}
|
|
|
|
if (reg_unit == UNIT_FX)
|
|
print_insn (outf, "F", template->name, buf);
|
|
else
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a SET instruction. */
|
|
static void
|
|
print_set (char *buf, char *addr_buf, unsigned int size,
|
|
const char *src_reg, const char *pair_reg, unsigned int reg_unit,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
if (size == 8)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", addr_buf, src_reg, pair_reg);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", addr_buf, src_reg);
|
|
}
|
|
|
|
if (reg_unit == UNIT_FX)
|
|
print_insn (outf, "F", template->name, buf);
|
|
else
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a GET or SET instruction. */
|
|
static void
|
|
print_get_set (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
bfd_boolean is_get = MAJOR_OPCODE (template->meta_opcode) == OPC_GET;
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
unsigned int reg_unit, reg_no;
|
|
unsigned int size = metag_get_set_size_bytes (insn_word);
|
|
const char *reg_name;
|
|
const char *pair_reg;
|
|
|
|
reg_unit = (insn_word >> 1) & UNIT_MASK;
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
/* SETs should always print RD. */
|
|
if (!is_get && reg_unit == UNIT_RD)
|
|
reg_no = 0;
|
|
|
|
reg_name = lookup_reg_name (reg_unit, reg_no);
|
|
|
|
pair_reg = lookup_pair_reg_name (reg_unit, reg_no);
|
|
|
|
get_set_addr_str (addr_buf, ADDR_WIDTH, size, insn_word);
|
|
|
|
if (is_get)
|
|
{
|
|
/* RD regs are 64 bits wide so don't use the pair syntax. */
|
|
if (reg_unit == UNIT_RD)
|
|
print_get (buf, addr_buf, 4, reg_name, pair_reg, reg_unit,
|
|
template, outf);
|
|
else
|
|
print_get (buf, addr_buf, size, reg_name, pair_reg, reg_unit,
|
|
template, outf);
|
|
}
|
|
else
|
|
{
|
|
/* RD regs are 64 bits wide so don't use the pair syntax. */
|
|
if (reg_unit == UNIT_RD)
|
|
print_set (buf, addr_buf, 4, reg_name, pair_reg, reg_unit,
|
|
template, outf);
|
|
else
|
|
print_set (buf, addr_buf, size, reg_name, pair_reg, reg_unit,
|
|
template, outf);
|
|
}
|
|
}
|
|
|
|
/* Print an extended GET or SET instruction. */
|
|
static void
|
|
print_get_set_ext (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
bfd_boolean is_get = MINOR_OPCODE (template->meta_opcode) == GET_EXT_MINOR;
|
|
bfd_boolean is_mov = MINOR_OPCODE (template->meta_opcode) == MOV_EXT_MINOR;
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
unsigned int reg_unit, reg_no;
|
|
unsigned int size = metag_get_set_ext_size_bytes (insn_word);
|
|
const char *reg_name;
|
|
const char *pair_reg;
|
|
|
|
if (is_mov)
|
|
reg_unit = UNIT_RD;
|
|
else
|
|
reg_unit = short_unit ((insn_word >> 3) & SHORT_UNIT_MASK);
|
|
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
reg_name = lookup_reg_name (reg_unit, reg_no);
|
|
|
|
pair_reg = lookup_pair_reg_name (reg_unit, reg_no);
|
|
|
|
get_set_ext_addr_str (addr_buf, ADDR_WIDTH, size, insn_word);
|
|
|
|
if (is_get)
|
|
print_get (buf, addr_buf, size, reg_name, pair_reg, reg_unit,
|
|
template, outf);
|
|
else if (is_mov)
|
|
print_get (buf, addr_buf, 4, reg_name, pair_reg, reg_unit,
|
|
template, outf);
|
|
else
|
|
print_set (buf, addr_buf, size, reg_name, pair_reg, reg_unit,
|
|
template, outf);
|
|
}
|
|
|
|
/* Print an MGET or MSET instruction. */
|
|
static void
|
|
print_mget_mset (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
bfd_boolean is_get = MAJOR_OPCODE (template->meta_opcode) == OPC_GET;
|
|
bfd_boolean is_fpu = (MINOR_OPCODE (template->meta_opcode) & 0x6) == 0x6;
|
|
bfd_boolean is_64bit = (MINOR_OPCODE (template->meta_opcode) & 0x1) == 0x1;
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
char reg_buf[REG_WIDTH];
|
|
unsigned int reg_unit, reg_no, rmask;
|
|
|
|
if (is_fpu)
|
|
reg_unit = UNIT_FX;
|
|
else
|
|
reg_unit = short_unit ((insn_word >> 3) & SHORT_UNIT_MASK);
|
|
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
rmask = (insn_word >> 7) & RMASK_MASK;
|
|
|
|
lookup_reg_list (reg_buf, REG_WIDTH, reg_unit, reg_no, rmask,
|
|
is_fpu && is_64bit);
|
|
|
|
mget_mset_addr_str (addr_buf, ADDR_WIDTH, insn_word);
|
|
|
|
if (is_get)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", reg_buf, addr_buf);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", addr_buf, reg_buf);
|
|
|
|
if (is_fpu)
|
|
print_insn (outf, "F", template->name, buf);
|
|
else
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a conditional SET instruction. */
|
|
static void
|
|
print_cond_set (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
unsigned int src_unit, src_no;
|
|
unsigned int size = metag_cond_set_size_bytes (insn_word);
|
|
const char *src_reg;
|
|
const char *pair_reg;
|
|
|
|
src_unit = (insn_word >> 10) & UNIT_MASK;
|
|
src_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
if (src_unit == UNIT_RD)
|
|
src_no = 0;
|
|
|
|
src_reg = lookup_reg_name (src_unit, src_no);
|
|
|
|
pair_reg = lookup_pair_reg_name (src_unit, src_no);
|
|
|
|
cond_set_addr_str (addr_buf, ADDR_WIDTH, insn_word);
|
|
|
|
if (src_unit == UNIT_RD)
|
|
print_set (buf, addr_buf, 4, src_reg, pair_reg, src_unit,
|
|
template, outf);
|
|
else
|
|
print_set (buf, addr_buf, size, src_reg, pair_reg, src_unit,
|
|
template, outf);
|
|
}
|
|
|
|
/* Print a MMOV instruction. */
|
|
static void
|
|
print_mmov (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
unsigned int is_fpu = template->insn_type == INSN_FPU;
|
|
unsigned int is_prime = ((MINOR_OPCODE (template->meta_opcode) & 0x2) &&
|
|
!is_fpu);
|
|
unsigned int is_64bit = MINOR_OPCODE (template->meta_opcode) & 0x1;
|
|
unsigned int is_dsp = template->meta_opcode & 0x1;
|
|
unsigned int dest_unit, dest_no, rmask;
|
|
char buf[OPERAND_WIDTH];
|
|
char reg_buf[REG_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
|
|
if (is_fpu)
|
|
dest_no = (insn_word >> 14) & REG_MASK;
|
|
else
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
rmask = (insn_word >> 7) & RMASK_MASK;
|
|
|
|
if (is_prime)
|
|
{
|
|
const char *dest_reg;
|
|
const char *base_reg;
|
|
unsigned int base_unit, base_no;
|
|
int i, count = hweight (rmask);
|
|
|
|
dest_reg = lookup_reg_name (UNIT_RD, dest_no);
|
|
|
|
strcpy (reg_buf, dest_reg);
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
strcat (reg_buf, ",");
|
|
strcat (reg_buf, dest_reg);
|
|
}
|
|
|
|
base_unit = short_unit ((insn_word >> 5) & SHORT_UNIT_MASK);
|
|
base_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
base_reg = lookup_reg_name (base_unit, base_no);
|
|
|
|
snprintf (addr_buf, ADDR_WIDTH, "[%s++]", base_reg);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", reg_buf, addr_buf);
|
|
}
|
|
else
|
|
{
|
|
if (is_fpu)
|
|
dest_unit = UNIT_FX;
|
|
else
|
|
dest_unit = short_unit ((insn_word >> 3) & SHORT_UNIT_MASK);
|
|
|
|
lookup_reg_list (reg_buf, REG_WIDTH, dest_unit, dest_no, rmask,
|
|
is_fpu && is_64bit);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,RD", reg_buf);
|
|
}
|
|
|
|
if (is_dsp)
|
|
{
|
|
char prefix_buf[10] = {0};
|
|
if (is_prime)
|
|
{
|
|
if (dest_no == 22 || dest_no == 23)
|
|
strcpy (prefix_buf, "DB");
|
|
else if (dest_no == 24)
|
|
strcpy (prefix_buf, "DBH");
|
|
else if (dest_no == 25)
|
|
strcpy (prefix_buf, "DWH");
|
|
else if (dest_no == 31)
|
|
strcpy (prefix_buf, "DW");
|
|
}
|
|
else
|
|
strcpy (prefix_buf, "DW");
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
else if (is_fpu)
|
|
print_insn (outf, "F", template->name, buf);
|
|
else
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print an MDRD instruction. */
|
|
static void
|
|
print_mdrd (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
unsigned int rmask, count;
|
|
char buf[OPERAND_WIDTH];
|
|
|
|
rmask = (insn_word >> 7) & RMASK_MASK;
|
|
|
|
count = hweight (rmask);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "#%#x", count + 1);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print an XFR instruction. */
|
|
static void
|
|
print_xfr (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char dest_buf[ADDR_WIDTH];
|
|
char src_buf[ADDR_WIDTH];
|
|
unsigned int dest_unit, src_unit;
|
|
unsigned int dest_no, src_no;
|
|
unsigned int us, ud, pp;
|
|
const char *dest_base_reg;
|
|
const char *dest_offset_reg;
|
|
const char *src_base_reg;
|
|
const char *src_offset_reg;
|
|
|
|
src_unit = short_unit ((insn_word >> 2) & SHORT_UNIT_MASK);
|
|
src_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
src_base_reg = lookup_reg_name (src_unit, src_no);
|
|
|
|
src_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
src_offset_reg = lookup_reg_name (src_unit, src_no);
|
|
|
|
dest_unit = short_unit (insn_word & SHORT_UNIT_MASK);
|
|
dest_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_base_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
dest_no = (insn_word >> 4) & REG_MASK;
|
|
|
|
dest_offset_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
us = (insn_word >> 27) & 0x1;
|
|
ud = (insn_word >> 26) & 0x1;
|
|
pp = (insn_word >> 24) & 0x1;
|
|
|
|
if (us)
|
|
if (pp)
|
|
snprintf (src_buf, ADDR_WIDTH, "[%s+%s++]", src_base_reg,
|
|
src_offset_reg);
|
|
else
|
|
snprintf (src_buf, ADDR_WIDTH, "[%s++%s]", src_base_reg,
|
|
src_offset_reg);
|
|
else
|
|
snprintf (src_buf, ADDR_WIDTH, "[%s+%s]", src_base_reg,
|
|
src_offset_reg);
|
|
|
|
if (ud)
|
|
if (pp)
|
|
snprintf (dest_buf, ADDR_WIDTH, "[%s+%s++]", dest_base_reg,
|
|
dest_offset_reg);
|
|
else
|
|
snprintf (dest_buf, ADDR_WIDTH, "[%s++%s]", dest_base_reg,
|
|
dest_offset_reg);
|
|
else
|
|
snprintf (dest_buf, ADDR_WIDTH, "[%s+%s]", dest_base_reg,
|
|
dest_offset_reg);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_buf, src_buf);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a MOV to control unit instruction. */
|
|
static void
|
|
print_mov_ct (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int reg_no;
|
|
unsigned int se = (insn_word >> 1) & 0x1;
|
|
unsigned int is_trace = (insn_word >> 2) & 0x1;
|
|
int value;
|
|
const char *dest_reg;
|
|
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
if (is_trace)
|
|
dest_reg = lookup_reg_name (UNIT_TT, reg_no);
|
|
else
|
|
dest_reg = lookup_reg_name (UNIT_CT, reg_no);
|
|
|
|
value = (insn_word >> 3) & IMM16_MASK;
|
|
|
|
if (se)
|
|
{
|
|
value = sign_extend (value, IMM16_BITS);
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%d", dest_reg, value);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%#x", dest_reg, value);
|
|
}
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a SWAP instruction. */
|
|
static void
|
|
print_swap (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int dest_no, src_no;
|
|
unsigned int dest_unit, src_unit;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
|
|
src_unit = (insn_word >> 10) & UNIT_MASK;
|
|
src_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
src_reg = lookup_reg_name (src_unit, src_no);
|
|
|
|
dest_unit = (insn_word >> 5) & UNIT_MASK;
|
|
dest_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
if (dest_unit == UNIT_FX || src_unit == UNIT_FX)
|
|
print_insn (outf, "F", template->name, buf);
|
|
else
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a SWAP instruction. */
|
|
static void
|
|
print_jump (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int reg_no, reg_unit;
|
|
const char *reg_name;
|
|
int value;
|
|
|
|
reg_unit = short_unit (insn_word & SHORT_UNIT_MASK);
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
reg_name = lookup_reg_name (reg_unit, reg_no);
|
|
|
|
value = (insn_word >> 3) & IMM16_MASK;
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%#x", reg_name, value);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a CALLR instruction. */
|
|
static void
|
|
print_callr (unsigned int insn_word, bfd_vma pc, const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int reg_no, reg_unit;
|
|
const char *reg_name;
|
|
int value;
|
|
|
|
reg_unit = short_unit ((insn_word >> 3) & SHORT_UNIT_MASK);
|
|
reg_no = insn_word & CALLR_REG_MASK;
|
|
|
|
reg_name = lookup_reg_name (reg_unit, reg_no);
|
|
|
|
value = (insn_word >> 5) & IMM19_MASK;
|
|
|
|
value = sign_extend (value, IMM19_BITS);
|
|
|
|
value = value * 4;
|
|
|
|
value += pc;
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,", reg_name);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
|
|
outf->print_address_func (value, outf);
|
|
}
|
|
|
|
/* Print a GP ALU instruction. */
|
|
static void
|
|
print_alu (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int is_addr_op = MAJOR_OPCODE (template->meta_opcode) == OPC_ADDR;
|
|
unsigned int is_mul = MAJOR_OPCODE (template->meta_opcode) == OPC_MUL;
|
|
unsigned int dest_no, src1_no, src2_no;
|
|
unsigned int imm = (insn_word >> 25) & 0x1;
|
|
unsigned int cond = (insn_word >> 26) & 0x1;
|
|
unsigned int o1z = 0;
|
|
unsigned int o2r = insn_word & 0x1;
|
|
unsigned int unit_bit = (insn_word >> 24) & 0x1;
|
|
unsigned int ca = (insn_word >> 5) & 0x1;
|
|
unsigned int se = (insn_word >> 1) & 0x1;
|
|
bfd_boolean is_quickrot = template->arg_type & GP_ARGS_QR;
|
|
enum metag_unit base_unit;
|
|
enum metag_unit dest_unit;
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
int value;
|
|
|
|
if ((MAJOR_OPCODE (template->meta_opcode) == OPC_ADDR ||
|
|
MAJOR_OPCODE (template->meta_opcode) == OPC_ADD ||
|
|
MAJOR_OPCODE (template->meta_opcode) == OPC_SUB) &&
|
|
((insn_word >> 2) & 0x1))
|
|
o1z = 1;
|
|
|
|
if (is_addr_op)
|
|
{
|
|
if (unit_bit)
|
|
base_unit = UNIT_A1;
|
|
else
|
|
base_unit = UNIT_A0;
|
|
}
|
|
else
|
|
{
|
|
if (unit_bit)
|
|
base_unit = UNIT_D1;
|
|
else
|
|
base_unit = UNIT_D0;
|
|
}
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_unit = base_unit;
|
|
|
|
if (imm)
|
|
{
|
|
if (cond)
|
|
{
|
|
if (ca)
|
|
{
|
|
dest_unit = (insn_word >> 1) & UNIT_MASK;
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
}
|
|
else
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
src1_reg = lookup_reg_name (base_unit, src1_no);
|
|
|
|
value = (insn_word >> 6) & IMM8_MASK;
|
|
|
|
if (is_quickrot)
|
|
{
|
|
unsigned int qr_unit = unit_bit ? UNIT_A1 : UNIT_A0;
|
|
unsigned int qr_no = 2;
|
|
const char *qr_reg = lookup_reg_name (qr_unit, qr_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,#%#x,%s", dest_reg,
|
|
src1_reg, value, qr_reg);
|
|
}
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,#%#x", dest_reg,
|
|
src1_reg, value);
|
|
}
|
|
else
|
|
{
|
|
if (is_addr_op && (dest_no & ~CPC_REG_MASK))
|
|
{
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no & CPC_REG_MASK);
|
|
src1_reg = lookup_reg_name (base_unit, 0x10);
|
|
}
|
|
else
|
|
{
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
src1_reg = lookup_reg_name (base_unit, dest_no);
|
|
}
|
|
|
|
value = (insn_word >> 3) & IMM16_MASK;
|
|
|
|
if (se)
|
|
{
|
|
value = sign_extend (value, IMM16_BITS);
|
|
if (o1z)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%d", dest_reg, value);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,#%d", dest_reg,
|
|
src1_reg, value);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (o1z)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%#x", dest_reg, value);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,#%#x", dest_reg,
|
|
src1_reg, value);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
src1_reg = lookup_reg_name (base_unit, src1_no);
|
|
|
|
if (o2r)
|
|
src2_reg = lookup_o2r (base_unit, src2_no);
|
|
else
|
|
src2_reg = lookup_reg_name (base_unit, src2_no);
|
|
|
|
if (cond)
|
|
{
|
|
dest_unit = (insn_word >> 5) & UNIT_MASK;
|
|
|
|
if (is_mul)
|
|
{
|
|
if (ca)
|
|
dest_unit = (insn_word >> 1) & UNIT_MASK;
|
|
else
|
|
dest_unit = base_unit;
|
|
}
|
|
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg,
|
|
src1_reg, src2_reg);
|
|
}
|
|
else
|
|
{
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
if (is_quickrot)
|
|
{
|
|
unsigned int qr_unit = unit_bit ? UNIT_A1 : UNIT_A0;
|
|
unsigned int qr_no = 2 + ((insn_word >> 7) & 0x1);
|
|
const char *qr_reg = lookup_reg_name (qr_unit, qr_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s,%s", dest_reg,
|
|
src1_reg, src2_reg, qr_reg);
|
|
}
|
|
else if (o1z)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src2_reg);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg,
|
|
src1_reg, src2_reg);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (dest_unit == UNIT_FX)
|
|
print_insn (outf, "F", template->name, buf);
|
|
else
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a B instruction. */
|
|
static void
|
|
print_branch (unsigned int insn_word, bfd_vma pc,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
int value;
|
|
|
|
value = (insn_word >> 5) & IMM19_MASK;
|
|
|
|
value = sign_extend (value, IMM19_BITS);
|
|
|
|
value = value * 4;
|
|
|
|
value += pc;
|
|
|
|
print_insn (outf, "", template->name, "");
|
|
|
|
outf->print_address_func (value, outf);
|
|
}
|
|
|
|
/* Print a SWITCH instruction. */
|
|
static void
|
|
print_switch (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int value;
|
|
|
|
value = insn_word & IMM24_MASK;
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "#%#x", value);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a shift instruction. */
|
|
static void
|
|
print_shift (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int dest_no, src1_no, src2_no;
|
|
unsigned int imm = (insn_word >> 25) & 0x1;
|
|
unsigned int cond = (insn_word >> 26) & 0x1;
|
|
unsigned int unit_bit = (insn_word >> 24) & 0x1;
|
|
unsigned int ca = (insn_word >> 5) & 0x1;
|
|
enum metag_unit base_unit;
|
|
unsigned int dest_unit;
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
int value;
|
|
|
|
if (unit_bit)
|
|
base_unit = UNIT_D1;
|
|
else
|
|
base_unit = UNIT_D0;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_unit = base_unit;
|
|
|
|
if (imm)
|
|
{
|
|
if (cond && ca)
|
|
dest_unit = (insn_word >> 1) & UNIT_MASK;
|
|
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
src1_reg = lookup_reg_name (base_unit, src1_no);
|
|
|
|
value = (insn_word >> 9) & IMM5_MASK;
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,#%#x", dest_reg,
|
|
src1_reg, value);
|
|
}
|
|
else
|
|
{
|
|
if (cond && ca)
|
|
dest_unit = (insn_word >> 1) & UNIT_MASK;
|
|
|
|
dest_reg = lookup_reg_name (dest_unit, dest_no);
|
|
|
|
src1_reg = lookup_reg_name (base_unit, src1_no);
|
|
src2_reg = lookup_reg_name (base_unit, src2_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg,
|
|
src1_reg, src2_reg);
|
|
}
|
|
|
|
if (dest_unit == UNIT_FX)
|
|
print_insn (outf, "F", template->name, buf);
|
|
else
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a MIN or MAX instruction. */
|
|
static void
|
|
print_min_max (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
unsigned int base_unit, dest_no, src1_no, src2_no;
|
|
char buf[OPERAND_WIDTH];
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
|
|
if ((insn_word >> 24) & UNIT_MASK)
|
|
base_unit = UNIT_D1;
|
|
else
|
|
base_unit = UNIT_D0;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (base_unit, dest_no);
|
|
|
|
src1_reg = lookup_reg_name (base_unit, src1_no);
|
|
src2_reg = lookup_reg_name (base_unit, src2_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, src1_reg, src2_reg);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a bit operation instruction. */
|
|
static void
|
|
print_bitop (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
unsigned int swap_inst = MAJOR_OPCODE (template->meta_opcode) == OPC_MISC;
|
|
unsigned int base_unit, src_unit, dest_no, src_no;
|
|
unsigned int is_bexl = 0;
|
|
char buf[OPERAND_WIDTH];
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
|
|
if (swap_inst &&
|
|
((insn_word >> 1) & 0xb) == 0xa)
|
|
is_bexl = 1;
|
|
|
|
if (swap_inst)
|
|
{
|
|
if (insn_word & 0x1)
|
|
base_unit = UNIT_D1;
|
|
else
|
|
base_unit = UNIT_D0;
|
|
}
|
|
else
|
|
{
|
|
if ((insn_word >> 24) & 0x1)
|
|
base_unit = UNIT_D1;
|
|
else
|
|
base_unit = UNIT_D0;
|
|
}
|
|
|
|
src_unit = base_unit;
|
|
|
|
if (is_bexl)
|
|
base_unit = get_pair_unit (base_unit);
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (base_unit, dest_no);
|
|
|
|
src_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
src_reg = lookup_reg_name (src_unit, src_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a CMP or TST instruction. */
|
|
static void
|
|
print_cmp (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int dest_no, src_no;
|
|
unsigned int imm = (insn_word >> 25) & 0x1;
|
|
unsigned int cond = (insn_word >> 26) & 0x1;
|
|
unsigned int o2r = insn_word & 0x1;
|
|
unsigned int unit_bit = (insn_word >> 24) & 0x1;
|
|
unsigned int se = (insn_word >> 1) & 0x1;
|
|
enum metag_unit base_unit;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
int value;
|
|
|
|
if (unit_bit)
|
|
base_unit = UNIT_D1;
|
|
else
|
|
base_unit = UNIT_D0;
|
|
|
|
dest_no = (insn_word >> 14) & REG_MASK;
|
|
src_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (base_unit, dest_no);
|
|
|
|
if (imm)
|
|
{
|
|
if (cond)
|
|
{
|
|
value = (insn_word >> 6) & IMM8_MASK;
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%#x", dest_reg, value);
|
|
}
|
|
else
|
|
{
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (base_unit, dest_no);
|
|
|
|
value = (insn_word >> 3) & IMM16_MASK;
|
|
|
|
if (se)
|
|
{
|
|
value = sign_extend (value, IMM16_BITS);
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%d", dest_reg, value);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%#x", dest_reg, value);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (o2r)
|
|
src_reg = lookup_o2r (base_unit, src_no);
|
|
else
|
|
src_reg = lookup_reg_name (base_unit, src_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
}
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a CACHER instruction. */
|
|
static void
|
|
print_cacher (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
unsigned int reg_unit, reg_no;
|
|
unsigned int size = ((insn_word >> 1) & 0x1) ? 8 : 4;
|
|
const char *reg_name;
|
|
const char *pair_name;
|
|
|
|
reg_unit = short_unit ((insn_word >> 3) & SHORT_UNIT_MASK);
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
reg_name = lookup_reg_name (reg_unit, reg_no);
|
|
pair_name = lookup_pair_reg_name (reg_unit, reg_no);
|
|
|
|
cache_addr_str (addr_buf, ADDR_WIDTH, insn_word, size);
|
|
|
|
if (size == 8)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", reg_name, pair_name, addr_buf);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", reg_name, addr_buf);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a CACHEW instruction. */
|
|
static void
|
|
print_cachew (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
unsigned int reg_unit, reg_no;
|
|
unsigned int size = ((insn_word >> 1) & 0x1) ? 8 : 4;
|
|
const char *reg_name;
|
|
const char *pair_name;
|
|
|
|
reg_unit = short_unit ((insn_word >> 3) & SHORT_UNIT_MASK);
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
reg_name = lookup_reg_name (reg_unit, reg_no);
|
|
pair_name = lookup_pair_reg_name (reg_unit, reg_no);
|
|
|
|
cache_addr_str (addr_buf, ADDR_WIDTH, insn_word, 64);
|
|
|
|
if (size == 8)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", addr_buf, reg_name, pair_name);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", addr_buf, reg_name);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print an ICACHE instruction. */
|
|
static void
|
|
print_icache (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
int offset;
|
|
int pfcount;
|
|
|
|
offset = ((insn_word >> 9) & IMM15_MASK);
|
|
pfcount = ((insn_word >> 1) & IMM4_MASK);
|
|
|
|
offset = sign_extend (offset, IMM15_BITS);
|
|
|
|
if (pfcount)
|
|
snprintf (buf, OPERAND_WIDTH, "#%d,#0x%x", offset, pfcount);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "#%d,#0", offset);
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print a LNKGET instruction. */
|
|
static void
|
|
print_lnkget (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
unsigned int reg_unit, reg_no;
|
|
unsigned int size = metag_get_set_ext_size_bytes (insn_word);
|
|
const char *reg_name;
|
|
const char *pair_name;
|
|
|
|
reg_unit = short_unit ((insn_word >> 3) & SHORT_UNIT_MASK);
|
|
reg_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
reg_name = lookup_reg_name (reg_unit, reg_no);
|
|
pair_name = lookup_pair_reg_name (reg_unit, reg_no);
|
|
|
|
cache_addr_str (addr_buf, ADDR_WIDTH, insn_word, size);
|
|
|
|
if (size == 8)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", reg_name, pair_name, addr_buf);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", reg_name, addr_buf);
|
|
|
|
print_insn (outf, "", template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU MOV instruction. */
|
|
static void
|
|
print_fmov (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
unsigned int src_no, dest_no;
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int d = (insn_word >> 5) & 0x1;
|
|
unsigned int cc = (insn_word >> 1) & CC_MASK;
|
|
bfd_boolean show_cond = cc != COND_A && cc != COND_NV;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
const char *cc_flags;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src_reg = lookup_reg_name (UNIT_FX, src_no);
|
|
|
|
cc_flags = lookup_fpu_scc_flags (cc);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s%s", p ? "L" : "",
|
|
d ? "D" : "", show_cond ? cc_flags : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
/* Convert an FPU rmask into a compatible form. */
|
|
static unsigned int
|
|
convert_fx_rmask (unsigned int rmask)
|
|
{
|
|
int num_bits = hweight (rmask), i;
|
|
unsigned int ret = 0;
|
|
|
|
for (i = 0; i < num_bits; i++)
|
|
{
|
|
ret <<= 1;
|
|
ret |= 0x1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Print an FPU MMOV instruction. */
|
|
static void
|
|
print_fmmov (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char data_buf[REG_WIDTH];
|
|
char fpu_buf[REG_WIDTH];
|
|
bfd_boolean to_fpu = MAJOR_OPCODE (insn_word) == OPC_GET;
|
|
bfd_boolean is_mmovl = MINOR_OPCODE (insn_word) & 0x1;
|
|
unsigned int rmask = (insn_word >> 7) & RMASK_MASK;
|
|
unsigned int fpu_no, data_no, data_unit;
|
|
|
|
data_no = (insn_word >> 19) & REG_MASK;
|
|
fpu_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
if (insn_word & 0x1)
|
|
data_unit = UNIT_D1;
|
|
else
|
|
data_unit = UNIT_D0;
|
|
|
|
lookup_reg_list (data_buf, REG_WIDTH, data_unit, data_no, rmask, FALSE);
|
|
lookup_reg_list (fpu_buf, REG_WIDTH, UNIT_FX, fpu_no,
|
|
convert_fx_rmask (rmask), is_mmovl);
|
|
|
|
if (to_fpu)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", fpu_buf, data_buf);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", data_buf, fpu_buf);
|
|
|
|
print_insn (outf, "F", template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU data unit MOV instruction. */
|
|
static void
|
|
print_fmov_data (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int src_no, dest_no;
|
|
unsigned int to_fpu = ((insn_word >> 7) & 0x1);
|
|
unsigned int unit_bit = (insn_word >> 24) & 0x1;
|
|
enum metag_unit base_unit;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
if (unit_bit)
|
|
base_unit = UNIT_D1;
|
|
else
|
|
base_unit = UNIT_D0;
|
|
|
|
if (to_fpu)
|
|
{
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src_reg = lookup_reg_name (base_unit, src_no);
|
|
}
|
|
else
|
|
{
|
|
dest_reg = lookup_reg_name (base_unit, dest_no);
|
|
src_reg = lookup_reg_name (UNIT_FX, src_no);
|
|
}
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
print_insn (outf, "F", template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU MOV immediate instruction. */
|
|
static void
|
|
print_fmov_i (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int dest_no;
|
|
unsigned int p = (insn_word >> 2) & 0x1;
|
|
unsigned int d = (insn_word >> 1) & 0x1;
|
|
const char *dest_reg;
|
|
unsigned int value = (insn_word >> 3) & IMM16_MASK;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#%#x", dest_reg, value);
|
|
|
|
if (p)
|
|
print_insn (outf, "FL", template->name, buf);
|
|
else if (d)
|
|
print_insn (outf, "FD", template->name, buf);
|
|
else
|
|
print_insn (outf, "F", template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU PACK instruction. */
|
|
static void
|
|
print_fpack (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int src1_no, src2_no, dest_no;
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src1_reg = lookup_reg_name (UNIT_FX, src1_no);
|
|
src2_reg = lookup_reg_name (UNIT_FX, src2_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, src1_reg, src2_reg);
|
|
|
|
print_insn (outf, "F", template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU SWAP instruction. */
|
|
static void
|
|
print_fswap (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int src_no, dest_no;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src_reg = lookup_reg_name (UNIT_FX, src_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
print_insn (outf, "FL", template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU CMP instruction. */
|
|
static void
|
|
print_fcmp (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
unsigned int src_no, dest_no;
|
|
unsigned int a = (insn_word >> 19) & 0x1;
|
|
unsigned int z = (insn_word >> 8) & 0x1;
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int d = (insn_word >> 5) & 0x1;
|
|
unsigned int q = (insn_word >> 7) & 0x1;
|
|
unsigned int cc = (insn_word >> 1) & CC_MASK;
|
|
bfd_boolean show_cond = cc != COND_A && cc != COND_NV;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
const char *cc_flags;
|
|
|
|
dest_no = (insn_word >> 14) & REG_MASK;
|
|
src_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src_reg = lookup_reg_name (UNIT_FX, src_no);
|
|
|
|
cc_flags = lookup_fpu_scc_flags (cc);
|
|
|
|
if (z)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,#0", dest_reg);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s%s%s%s", p ? "L" : "",
|
|
d ? "D" : "", a ? "A" : "", q ? "Q" : "",
|
|
show_cond ? cc_flags : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU MIN or MAX instruction. */
|
|
static void
|
|
print_fminmax (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int d = (insn_word >> 5) & 0x1;
|
|
unsigned int src1_no, src2_no, dest_no;
|
|
unsigned int cc = (insn_word >> 1) & CC_MASK;
|
|
bfd_boolean show_cond = cc != COND_A && cc != COND_NV;
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
const char *cc_flags;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src1_reg = lookup_reg_name (UNIT_FX, src1_no);
|
|
src2_reg = lookup_reg_name (UNIT_FX, src2_no);
|
|
|
|
cc_flags = lookup_fpu_scc_flags (cc);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, src1_reg, src2_reg);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s%s", p ? "L" : "",
|
|
d ? "D" : "", show_cond ? cc_flags : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU data conversion instruction. */
|
|
static void
|
|
print_fconv (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int z = (insn_word >> 12) & 0x1;
|
|
unsigned int src_no, dest_no;
|
|
unsigned int cc = (insn_word >> 1) & CC_MASK;
|
|
bfd_boolean show_cond = cc != COND_A && cc != COND_NV;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
const char *cc_flags;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src_reg = lookup_reg_name (UNIT_FX, src_no);
|
|
|
|
cc_flags = lookup_fpu_scc_flags (cc);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s%s", p ? "L" : "",
|
|
z ? "Z" : "", show_cond ? cc_flags : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU extended data conversion instruction. */
|
|
static void
|
|
print_fconvx (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int xl = (insn_word >> 7) & 0x1;
|
|
unsigned int src_no, dest_no, fraction_bits;
|
|
unsigned int cc = (insn_word >> 1) & CC_MASK;
|
|
bfd_boolean show_cond = cc != COND_A && cc != COND_NV;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
const char *cc_flags;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src_reg = lookup_reg_name (UNIT_FX, src_no);
|
|
|
|
cc_flags = lookup_fpu_scc_flags (cc);
|
|
|
|
if (xl)
|
|
fraction_bits = (insn_word >> 8) & IMM6_MASK;
|
|
else
|
|
fraction_bits = (insn_word >> 9) & IMM5_MASK;
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,#%#x", dest_reg, src_reg,
|
|
fraction_bits);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s", p ? "L" : "",
|
|
show_cond ? cc_flags : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU basic arithmetic instruction. */
|
|
static void
|
|
print_fbarith (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
unsigned int n = (insn_word >> 7) & 0x1;
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int d = (insn_word >> 5) & 0x1;
|
|
unsigned int src1_no, src2_no, dest_no;
|
|
unsigned int cc = (insn_word >> 1) & CC_MASK;
|
|
bfd_boolean show_cond = cc != COND_A && cc != COND_NV;
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
const char *cc_flags;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src1_reg = lookup_reg_name (UNIT_FX, src1_no);
|
|
src2_reg = lookup_reg_name (UNIT_FX, src2_no);
|
|
|
|
cc_flags = lookup_fpu_scc_flags (cc);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, src1_reg, src2_reg);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s%s%s", p ? "L" : "",
|
|
d ? "D" : "", n ? "I" : "", show_cond ? cc_flags : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU extended arithmetic instruction. */
|
|
static void
|
|
print_fearith (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
bfd_boolean is_muz = (MINOR_OPCODE (insn_word) == 0x6 &&
|
|
((insn_word >> 4) & 0x1));
|
|
bfd_boolean is_mac = (MINOR_OPCODE (insn_word) == 0x6 &&
|
|
(insn_word & 0x1f) == 0);
|
|
bfd_boolean is_maw = (MINOR_OPCODE (insn_word) == 0x6 &&
|
|
((insn_word >> 3) & 0x1));
|
|
unsigned int o3o = insn_word & 0x1;
|
|
unsigned int q = is_muz && ((insn_word >> 1) & 0x1);
|
|
unsigned int n = (insn_word >> 7) & 0x1;
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int d = (insn_word >> 5) & 0x1;
|
|
unsigned int cc = (insn_word >> 1) & CC_MASK;
|
|
bfd_boolean show_cond = (MINOR_OPCODE (insn_word) == 0x5 && cc != COND_A &&
|
|
cc != COND_NV);
|
|
unsigned int src1_no, src2_no, dest_no;
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
const char *cc_flags;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src1_reg = lookup_reg_name (UNIT_FX, src1_no);
|
|
src2_reg = lookup_reg_name (UNIT_FX, src2_no);
|
|
|
|
cc_flags = lookup_fpu_scc_flags (cc);
|
|
|
|
if (is_mac)
|
|
snprintf (buf, OPERAND_WIDTH, "ACF.0,%s,%s", src1_reg, src2_reg);
|
|
else if (o3o && is_maw)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", src1_reg, src2_reg);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, src1_reg, src2_reg);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s%s%s%s", p ? "L" : "",
|
|
d ? "D" : "", n ? "I" : "", q ? "Q" : "",
|
|
show_cond ? cc_flags : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU RCP or RSQ instruction. */
|
|
static void
|
|
print_frec (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix_buf[10];
|
|
unsigned int z = (insn_word >> 10) & 0x1;
|
|
unsigned int q = (insn_word >> 9) & 0x1;
|
|
unsigned int n = (insn_word >> 7) & 0x1;
|
|
unsigned int p = (insn_word >> 6) & 0x1;
|
|
unsigned int d = (insn_word >> 5) & 0x1;
|
|
unsigned int src_no, dest_no;
|
|
const char *dest_reg;
|
|
const char *src_reg;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src_no = (insn_word >> 14) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src_reg = lookup_reg_name (UNIT_FX, src_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", dest_reg, src_reg);
|
|
|
|
snprintf (prefix_buf, 10, "F%s%s%s%s%s", p ? "L" : "",
|
|
d ? "D" : "", n ? "I" : "", q ? "Q" : "", z ? "Z" : "");
|
|
|
|
print_insn (outf, prefix_buf, template->name, buf);
|
|
}
|
|
|
|
static void
|
|
print_fsimd (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
unsigned int n = (insn_word >> 7) & 0x1;
|
|
unsigned int src1_no, src2_no, dest_no;
|
|
const char *dest_reg;
|
|
const char *src1_reg;
|
|
const char *src2_reg;
|
|
|
|
dest_no = (insn_word >> 19) & REG_MASK;
|
|
src1_no = (insn_word >> 14) & REG_MASK;
|
|
src2_no = (insn_word >> 9) & REG_MASK;
|
|
|
|
dest_reg = lookup_reg_name (UNIT_FX, dest_no);
|
|
src1_reg = lookup_reg_name (UNIT_FX, src1_no);
|
|
src2_reg = lookup_reg_name (UNIT_FX, src2_no);
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", dest_reg, src1_reg, src2_reg);
|
|
|
|
if (n)
|
|
print_insn (outf, "FLI", template->name, buf);
|
|
else
|
|
print_insn (outf, "FL", template->name, buf);
|
|
}
|
|
|
|
/* Print an FPU accumulator GET or SET instruction. */
|
|
static void
|
|
print_fget_set_acf (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
bfd_boolean is_get = MAJOR_OPCODE (template->meta_opcode) == OPC_GET;
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
unsigned int part;
|
|
const char *reg_name;
|
|
|
|
part = (insn_word >> 19) & ACF_PART_MASK;
|
|
|
|
reg_name = lookup_acf_name (part);
|
|
|
|
mget_mset_addr_str (addr_buf, ADDR_WIDTH, insn_word);
|
|
|
|
if (is_get)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", reg_name, addr_buf);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", addr_buf, reg_name);
|
|
}
|
|
print_insn (outf, "F", template->name, buf);
|
|
}
|
|
|
|
/* Return the name of the DSP register or accumulator for NUM and UNIT. */
|
|
static const char *
|
|
__lookup_dsp_name (unsigned int num, unsigned int unit)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < sizeof(metag_dsp_regtab)/sizeof(metag_dsp_regtab[0]); i++)
|
|
{
|
|
const metag_reg *reg = &metag_dsp_regtab[i];
|
|
|
|
if (reg->no == num)
|
|
{
|
|
if ((reg->unit == UNIT_RAM_D0 || reg->unit == UNIT_ACC_D0) &&
|
|
unit == UNIT_D0)
|
|
return reg->name;
|
|
|
|
if ((reg->unit == UNIT_RAM_D1 || reg->unit == UNIT_ACC_D1) &&
|
|
unit == UNIT_D1)
|
|
return reg->name;
|
|
}
|
|
}
|
|
return "?.?";
|
|
}
|
|
|
|
/* Return the name of the DSP register for NUM and UNIT. */
|
|
static const char *
|
|
lookup_dsp_name (unsigned int num, unsigned int unit)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < sizeof(metag_dsp_regtab)/sizeof(metag_dsp_regtab[0]); i++)
|
|
{
|
|
const metag_reg *reg = &metag_dsp_regtab[i];
|
|
|
|
if (reg->no == num && reg->unit == unit)
|
|
return reg->name;
|
|
}
|
|
return "?.?";
|
|
}
|
|
|
|
/* Return the name of the DSP RAM register for NUM and UNIT. */
|
|
static const char *
|
|
lookup_dspram_name (unsigned int num, unsigned int unit, bfd_boolean load)
|
|
{
|
|
size_t i, nentries;
|
|
|
|
nentries = sizeof(metag_dsp_tmpl_regtab[load])/sizeof(metag_dsp_tmpl_regtab[load][0]);
|
|
|
|
for (i = 0; i < nentries; i++)
|
|
{
|
|
const metag_reg *reg = &metag_dsp_tmpl_regtab[load][i];
|
|
|
|
if (reg->no == num && reg->unit == unit)
|
|
return reg->name;
|
|
}
|
|
return "?.?";
|
|
}
|
|
|
|
/* This lookup function looks up the corresponding name for a register
|
|
number in a DSP instruction. SOURCE indicates whether this
|
|
register is a source or destination operand. */
|
|
static const char *
|
|
lookup_any_reg_name (unsigned int unit, unsigned int num, bfd_boolean source)
|
|
{
|
|
/* A register with the top bit set (5th bit) indicates a DSPRAM
|
|
register. */
|
|
if (num > 15)
|
|
{
|
|
unsigned int dunit = (unit == UNIT_D0) ? UNIT_RAM_D0 : UNIT_RAM_D1;
|
|
return lookup_dspram_name (num, dunit, source);
|
|
}
|
|
else
|
|
return lookup_reg_name (unit, num);
|
|
}
|
|
|
|
/* Return the DSP data unit for UNIT. */
|
|
static inline enum metag_unit
|
|
dsp_data_unit_to_sym (unsigned int unit)
|
|
{
|
|
if (unit == 0)
|
|
return UNIT_D0;
|
|
else
|
|
return UNIT_D1;
|
|
}
|
|
|
|
/* Print a DSP GET or SET instruction. */
|
|
static void
|
|
print_dget_set (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
bfd_boolean is_get = (template->meta_opcode & 0x100);
|
|
char buf[OPERAND_WIDTH];
|
|
char addr_buf[ADDR_WIDTH];
|
|
char prefix[DSP_PREFIX_WIDTH];
|
|
unsigned int part;
|
|
const char *reg_name[2];
|
|
bfd_boolean is_high = FALSE;
|
|
bfd_boolean is_dual = (insn_word & 0x4);
|
|
bfd_boolean is_template = (insn_word & 0x2);
|
|
const char *base_reg = "?";
|
|
unsigned int addr_unit, base_no, unit;
|
|
|
|
unit = dsp_data_unit_to_sym (insn_word & 0x1);
|
|
|
|
/* Is this a load/store to a template table? */
|
|
if (is_template)
|
|
{
|
|
part = (insn_word >> 19) & 0x1f;
|
|
reg_name[0] = lookup_dsp_name (part, UNIT_DT);
|
|
}
|
|
else
|
|
{
|
|
part = (insn_word >> 19) & REG_MASK;
|
|
is_high = ((part & 0x18) == 0x18);
|
|
|
|
/* Strip bit high indicator. */
|
|
if (is_high)
|
|
part &= 0x17;
|
|
|
|
reg_name[0] = __lookup_dsp_name (part, unit);
|
|
|
|
}
|
|
|
|
/* Is this a dual unit DSP operation? The modulo operator below
|
|
makes sure that we print the Rd register in the correct order,
|
|
e.g. because there's only one bit in the instruction for the Data
|
|
Unit we have to work out what the other data unit number is.
|
|
(there's only 2). */
|
|
if (is_dual)
|
|
{
|
|
unsigned int _unit = insn_word & 0x1;
|
|
|
|
_unit = ((_unit + 1) % 2);
|
|
reg_name[1] = __lookup_dsp_name(part, dsp_data_unit_to_sym (_unit));
|
|
}
|
|
else
|
|
reg_name[1] = NULL;
|
|
|
|
addr_unit = ((insn_word >> 18) & 0x1);
|
|
if (addr_unit == 0)
|
|
addr_unit = UNIT_A0;
|
|
else
|
|
addr_unit = UNIT_A1;
|
|
|
|
base_no = (insn_word >> 14) & DSP_REG_MASK;
|
|
|
|
base_reg = lookup_reg_name (addr_unit, base_no);
|
|
|
|
/* Check if it's a post-increment/post-decrement. */
|
|
if (insn_word & 0x2000)
|
|
{
|
|
unsigned int imm = (insn_word >> 9) & DGET_SET_IMM_MASK;
|
|
const char *post_op;
|
|
|
|
switch (imm)
|
|
{
|
|
case 0x1:
|
|
post_op = "++";
|
|
break;
|
|
case 0x3:
|
|
post_op = "--";
|
|
break;
|
|
default:
|
|
post_op = "";
|
|
}
|
|
|
|
snprintf (addr_buf, ADDR_WIDTH, "[%s%s]", base_reg, post_op);
|
|
}
|
|
else
|
|
{
|
|
unsigned int offset_part = (insn_word >> 9) & DSP_REG_MASK;
|
|
const char *offset_reg = lookup_reg_name (addr_unit, offset_part);
|
|
|
|
snprintf (addr_buf, ADDR_WIDTH, "[%s+%s++]", base_reg, offset_reg);
|
|
}
|
|
|
|
if (is_get)
|
|
{
|
|
if (is_dual && !is_template)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", reg_name[0],
|
|
reg_name[1], addr_buf);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", reg_name[0], addr_buf);
|
|
}
|
|
else
|
|
{
|
|
if (is_dual && !is_template)
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s", addr_buf,
|
|
reg_name[0], reg_name[1]);
|
|
else
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s", addr_buf, reg_name[0]);
|
|
}
|
|
|
|
snprintf (prefix, DSP_PREFIX_WIDTH, "D%s", is_high ? "H" : "");
|
|
print_insn (outf, prefix, template->name, buf);
|
|
}
|
|
|
|
/* Print a DSP template instruction. */
|
|
static void
|
|
print_dtemplate (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix[DSP_PREFIX_WIDTH];
|
|
unsigned int offset[4];
|
|
bfd_boolean is_half = (MINOR_OPCODE (insn_word) == 0x5);
|
|
bfd_boolean daop_only = (MINOR_OPCODE (insn_word) == 0x3);
|
|
|
|
offset[0] = ((insn_word >> 19) & REG_MASK);
|
|
offset[1] = ((insn_word >> 14) & REG_MASK);
|
|
offset[2] = ((insn_word >> 9) & REG_MASK);
|
|
offset[3] = ((insn_word >> 4) & REG_MASK);
|
|
|
|
if (daop_only)
|
|
snprintf (buf, OPERAND_WIDTH, "#0x%x,#0x%x,#0x%x", offset[0],
|
|
offset[1], offset[2]);
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "#0x%x,#0x%x,#0x%x,#0x%x", offset[0],
|
|
offset[1], offset[2], offset[3]);
|
|
}
|
|
|
|
snprintf (prefix, DSP_PREFIX_WIDTH, "D%s", is_half ? "H" : "");
|
|
print_insn (outf, prefix, template->name, buf);
|
|
}
|
|
|
|
/* Format template definition from INSN_WORD into BUF. */
|
|
static void
|
|
decode_template_definition(unsigned int insn_word, char *buf, size_t len)
|
|
{
|
|
bfd_boolean load = ((insn_word >> 13) & 0x1);
|
|
bfd_boolean dspram = (((insn_word >> 17) & 0x3) == 0x3);
|
|
const char *template[1];
|
|
unsigned int tidx = ((insn_word >> 9) & TEMPLATE_REGS_MASK);
|
|
enum metag_unit au, ram_unit;
|
|
unsigned int addr_reg_nums[2];
|
|
const char *addr_reg_names[2];
|
|
const char *post_op = "";
|
|
const char *join_op = "";
|
|
enum metag_unit data_unit = ((insn_word >> 24) & 0x1) ? UNIT_D1 : UNIT_D0;
|
|
|
|
template[0] = lookup_dsp_name (tidx, UNIT_DT);
|
|
|
|
addr_reg_names[1] = "";
|
|
|
|
if (dspram)
|
|
{
|
|
ram_unit = (data_unit == UNIT_D0) ? UNIT_RAM_D0 : UNIT_RAM_D1;
|
|
addr_reg_nums[0] = ((insn_word >> 19) & REG_MASK);
|
|
addr_reg_names[0] = lookup_dspram_name (addr_reg_nums[0],
|
|
ram_unit, load);
|
|
}
|
|
else
|
|
{
|
|
bfd_boolean im = (((insn_word >> 18) & 0x1) != 0);
|
|
|
|
au = (((insn_word >> 23) & 0x1) == 0) ? UNIT_A0 : UNIT_A1;
|
|
addr_reg_nums[0] = ((insn_word >> 19) & DSP_REG_MASK);
|
|
|
|
addr_reg_names[0] = lookup_reg_name (au, addr_reg_nums[0]);
|
|
|
|
if (im)
|
|
{
|
|
unsigned int im_value = ((insn_word >> 14) & 0x3);
|
|
|
|
switch (im_value)
|
|
{
|
|
case 0x1:
|
|
post_op = "++";
|
|
break;
|
|
case 0x3:
|
|
post_op = "--";
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
addr_reg_nums[1] = ((insn_word >> 14) & DSP_REG_MASK);
|
|
addr_reg_names[1] = lookup_reg_name (au, addr_reg_nums[1]);
|
|
join_op = "+";
|
|
post_op = "++";
|
|
}
|
|
}
|
|
|
|
if (load)
|
|
{
|
|
len = snprintf (buf, len, " %s,[%s%s%s%s]", template[0], addr_reg_names[0],
|
|
join_op, addr_reg_names[1], post_op);
|
|
}
|
|
else
|
|
{
|
|
len = snprintf (buf, len, " [%s%s%s%s],%s", addr_reg_names[0], join_op,
|
|
addr_reg_names[1], post_op, template[0]);
|
|
}
|
|
}
|
|
|
|
/* Print a DSP ALU instruction. */
|
|
static void
|
|
print_dalu (unsigned int insn_word, bfd_vma pc ATTRIBUTE_UNUSED,
|
|
const insn_template *template,
|
|
disassemble_info *outf)
|
|
{
|
|
bfd_boolean is_dual = FALSE;
|
|
unsigned int data_unit = (((insn_word >> 24) & 0x1) ? UNIT_D1 : UNIT_D0);
|
|
const char *reg_names[3];
|
|
unsigned int reg_nums[3];
|
|
bfd_boolean ac = ((insn_word >> 7) & 0x1);
|
|
char buf[OPERAND_WIDTH];
|
|
char prefix[DSP_PREFIX_WIDTH];
|
|
size_t len;
|
|
bfd_boolean is_mod = FALSE;
|
|
bfd_boolean is_overflow = FALSE;
|
|
unsigned int reg_brackets[3];
|
|
bfd_boolean is_w_mx = FALSE;
|
|
bfd_boolean is_b_mx = FALSE;
|
|
bfd_boolean imm = FALSE;
|
|
bfd_boolean is_quickrot64 = FALSE;
|
|
bfd_boolean conditional = FALSE;
|
|
const char *cc_flags = NULL;
|
|
bfd_boolean is_unsigned = FALSE;
|
|
|
|
memset (reg_brackets, 0, sizeof (reg_brackets));
|
|
|
|
if (template->arg_type & DSP_ARGS_1)
|
|
{
|
|
bfd_boolean is_template = FALSE;
|
|
const char *addr_reg = NULL;
|
|
bfd_boolean qr = FALSE;
|
|
bfd_boolean is_acc_add = FALSE;
|
|
bfd_boolean is_acc_sub = FALSE;
|
|
bfd_boolean is_acc_zero = FALSE;
|
|
bfd_boolean is_split8 = (template->arg_type & DSP_ARGS_SPLIT8);
|
|
|
|
/* Read DU bit. */
|
|
data_unit = ((insn_word >> 24) & 0x1) ? UNIT_D1 : UNIT_D0;
|
|
|
|
conditional = ((insn_word >> 24) & 0x4);
|
|
|
|
/* Templates can't be conditional. */
|
|
is_template = (((insn_word & 0x02000002) == 0x2) && !conditional);
|
|
|
|
if (is_split8)
|
|
is_mod = (insn_word & 0x80);
|
|
|
|
if (template->arg_type & DSP_ARGS_QR)
|
|
{
|
|
if (!conditional)
|
|
is_quickrot64 = ((insn_word >> 5) & 0x1);
|
|
}
|
|
|
|
if (template->arg_type & DSP_ARGS_DACC)
|
|
{
|
|
is_mod = (insn_word & 0x8);
|
|
is_unsigned = (insn_word & 0x40);
|
|
}
|
|
|
|
if (is_template)
|
|
{
|
|
is_w_mx = (insn_word & 0x1);
|
|
is_dual = ((insn_word >> 0x4) & 0x1);
|
|
|
|
/* De.r,Dx.r,De.r|ACe.r */
|
|
if (template->arg_type & DSP_ARGS_ACC2)
|
|
{
|
|
is_mod = (insn_word & 0x8);
|
|
is_overflow = (insn_word & 0x20);
|
|
}
|
|
|
|
/* ACe.e,ACx.r,ACo.e? */
|
|
if ((template->arg_type & DSP_ARGS_XACC) &&
|
|
(((insn_word >> 6) & 0x5) == 0x5))
|
|
{
|
|
enum metag_unit ac_unit, ao_unit;
|
|
|
|
ac_unit = (data_unit == UNIT_D0) ? UNIT_ACC_D0 : UNIT_ACC_D1;
|
|
|
|
if (ac_unit == UNIT_ACC_D0)
|
|
ao_unit = UNIT_ACC_D1;
|
|
else
|
|
ao_unit = UNIT_ACC_D0;
|
|
|
|
reg_nums[1] = ((insn_word >> 19) & REG_MASK);
|
|
|
|
/* These are dummy arguments anyway so the register
|
|
number does not matter. */
|
|
reg_names[0] = lookup_dsp_name (16, ac_unit); /* ACe.0 */
|
|
reg_names[1] = lookup_dsp_name (16, ac_unit); /* ACx.0 */
|
|
reg_names[2] = lookup_dsp_name (16, ao_unit); /* ACo.0 */
|
|
}
|
|
else
|
|
{
|
|
/* De.r|ACe.r,Dx.r,De.r */
|
|
if (template->arg_type & DSP_ARGS_DACC &&
|
|
((insn_word & 0x84) != 0))
|
|
{
|
|
enum metag_unit ac_unit;
|
|
|
|
ac_unit = (data_unit == UNIT_D0) ? UNIT_ACC_D0 : UNIT_ACC_D1;
|
|
reg_names[0] = lookup_dsp_name (16, ac_unit);
|
|
|
|
is_acc_zero = ((insn_word & 0x84) == 0x04);
|
|
is_acc_add = ((insn_word & 0x84) == 0x80);
|
|
is_acc_sub = ((insn_word & 0x84) == 0x84);
|
|
}
|
|
else
|
|
reg_names[0] = lookup_any_reg_name (data_unit, 0, FALSE);
|
|
|
|
/* These are dummy arguments anyway so the register
|
|
number does not matter. */
|
|
reg_names[1] = lookup_any_reg_name (data_unit, 0, TRUE);
|
|
|
|
/* De.r,Dx.r,De.r|ACe.r */
|
|
if ((template->arg_type & DSP_ARGS_ACC2) &&
|
|
((insn_word & 0x80) == 0x80))
|
|
{
|
|
enum metag_unit ac_unit;
|
|
|
|
ac_unit = (data_unit == UNIT_D0) ? UNIT_ACC_D0 : UNIT_ACC_D1;
|
|
reg_names[2] = lookup_dsp_name (16, ac_unit);
|
|
}
|
|
/* Detection of QUICKRoT and accumulator usage uses the
|
|
same bits. They are mutually exclusive. */
|
|
else if (ac && (template->arg_type & DSP_ARGS_ACC2))
|
|
{
|
|
reg_nums[2] = ((insn_word >> 9) & REG_MASK);
|
|
|
|
if (data_unit == UNIT_D0)
|
|
reg_names[2] = lookup_dsp_name (reg_nums[2], UNIT_ACC_D0);
|
|
else
|
|
reg_names[2] = lookup_dsp_name (reg_nums[2], UNIT_ACC_D1);
|
|
}
|
|
else
|
|
{
|
|
if ((template->arg_type & DSP_ARGS_QR) &&
|
|
((insn_word & 0x40) == 0x40))
|
|
{
|
|
enum metag_unit aunit;
|
|
int reg_no;
|
|
|
|
if (conditional)
|
|
reg_no = ((insn_word >> 5) & 0x1);
|
|
else
|
|
reg_no = ((insn_word >> 7) & 0x1);
|
|
|
|
aunit = (data_unit == UNIT_D0) ? UNIT_A0 : UNIT_A1;
|
|
addr_reg = lookup_reg_name (aunit, reg_no + 2);
|
|
|
|
qr = TRUE;
|
|
}
|
|
|
|
reg_names[2] = lookup_any_reg_name (data_unit, 0, TRUE);
|
|
}
|
|
}
|
|
|
|
if (qr)
|
|
{
|
|
len = snprintf (buf, OPERAND_WIDTH, "%s,%s,%s,%s",
|
|
reg_names[0], reg_names[1], reg_names[2],
|
|
addr_reg);
|
|
}
|
|
else
|
|
{
|
|
len = snprintf (buf, OPERAND_WIDTH, "%s,%s,%s%s%s",
|
|
reg_names[0], reg_names[1],
|
|
reg_brackets[2] ? "[" : "",
|
|
reg_names[2], reg_brackets[2] ? "]" : "");
|
|
}
|
|
|
|
decode_template_definition (insn_word, buf + len,
|
|
OPERAND_WIDTH - len);
|
|
}
|
|
else /* Not a template definiton. */
|
|
{
|
|
reg_nums[0] = ((insn_word >> 19) & REG_MASK);
|
|
reg_nums[1] = ((insn_word >> 14) & REG_MASK);
|
|
reg_nums[2] = ((insn_word >> 9) & REG_MASK);
|
|
|
|
imm = (((insn_word >> 24) & 0x2) && (template->arg_type & DSP_ARGS_IMM));
|
|
|
|
if (imm)
|
|
is_dual = (insn_word & 0x4);
|
|
else if (!conditional)
|
|
is_dual = (insn_word & 0x10);
|
|
else
|
|
cc_flags = lookup_scc_flags ((insn_word >> 1) & CC_MASK);
|
|
|
|
/* De.r,Dx.r,De.r|ACe.r */
|
|
if (template->arg_type & DSP_ARGS_ACC2)
|
|
{
|
|
is_mod = (insn_word & 0x8);
|
|
is_overflow = (insn_word & 0x20);
|
|
}
|
|
|
|
if (template->arg_type & DSP_ARGS_SPLIT8)
|
|
{
|
|
is_overflow = (insn_word & 0x20);
|
|
}
|
|
|
|
/* ACe.e,ACx.r,ACo.e? */
|
|
if ((template->arg_type & DSP_ARGS_XACC) &&
|
|
(((insn_word >> 6) & 0x5) == 0x5))
|
|
{
|
|
enum metag_unit ac_unit, ao_unit;
|
|
|
|
ac_unit = (data_unit == UNIT_D0) ? UNIT_ACC_D0 : UNIT_ACC_D1;
|
|
|
|
if (ac_unit == UNIT_ACC_D0)
|
|
ao_unit = UNIT_ACC_D1;
|
|
else
|
|
ao_unit = UNIT_ACC_D0;
|
|
|
|
reg_nums[1] = ((insn_word >> 19) & REG_MASK);
|
|
reg_names[0] = lookup_dsp_name (reg_nums[1], ac_unit);
|
|
reg_names[1] = lookup_dsp_name (reg_nums[1], ac_unit);
|
|
reg_names[2] = lookup_dsp_name (reg_nums[1], ao_unit);
|
|
}
|
|
else
|
|
{
|
|
bfd_boolean o2r = (insn_word & 0x1);
|
|
|
|
/* De.r|ACe.r,Dx.r,De.r */
|
|
if ((template->arg_type & DSP_ARGS_DACC) &&
|
|
((insn_word & 0x84) != 0))
|
|
{
|
|
enum metag_unit ac_unit;
|
|
|
|
ac_unit = (data_unit == UNIT_D0) ? UNIT_ACC_D0 : UNIT_ACC_D1;
|
|
reg_names[0] = lookup_dsp_name (reg_nums[0], ac_unit);
|
|
|
|
is_acc_zero = ((insn_word & 0x84) == 0x04);
|
|
is_acc_add = ((insn_word & 0x84) == 0x80);
|
|
is_acc_sub = ((insn_word & 0x84) == 0x84);
|
|
}
|
|
else if (conditional)
|
|
{
|
|
reg_names[0] = lookup_reg_name (data_unit, reg_nums[0]);
|
|
}
|
|
else
|
|
{
|
|
reg_names[0] = lookup_any_reg_name (data_unit,
|
|
reg_nums[0], FALSE);
|
|
if (reg_nums[0] > 15)
|
|
reg_brackets[0] = 1;
|
|
}
|
|
|
|
if (imm)
|
|
{
|
|
reg_names[1] = lookup_any_reg_name (data_unit, reg_nums[0], TRUE);
|
|
|
|
if (reg_brackets[0])
|
|
reg_brackets[1] = 1;
|
|
}
|
|
else
|
|
{
|
|
if (is_split8 && is_mod)
|
|
{
|
|
reg_names[1] = lookup_reg_name (data_unit, reg_nums[1]);
|
|
}
|
|
else
|
|
{
|
|
reg_names[1] = lookup_any_reg_name (data_unit, reg_nums[1], TRUE);
|
|
|
|
if (reg_nums[1] > 15)
|
|
reg_brackets[1] = 1;
|
|
}
|
|
}
|
|
|
|
/* Detection of QUICKRoT and accumulator usage uses the
|
|
same bits. They are mutually exclusive. */
|
|
if (ac && (template->arg_type & DSP_ARGS_ACC2))
|
|
{
|
|
if (data_unit == UNIT_D0)
|
|
reg_names[2] = lookup_dsp_name (reg_nums[2], UNIT_ACC_D0);
|
|
else
|
|
reg_names[2] = lookup_dsp_name (reg_nums[2], UNIT_ACC_D1);
|
|
}
|
|
|
|
else
|
|
{
|
|
if ((template->arg_type & DSP_ARGS_QR) &&
|
|
((insn_word & 0x40) == 0x40))
|
|
{
|
|
enum metag_unit aunit;
|
|
int reg_no;
|
|
|
|
if (conditional)
|
|
reg_no = ((insn_word >> 5) & 0x1);
|
|
else
|
|
reg_no = ((insn_word >> 7) & 0x1);
|
|
|
|
aunit = (data_unit == UNIT_D0) ? UNIT_A0 : UNIT_A1;
|
|
addr_reg = lookup_reg_name (aunit, reg_no + 2);
|
|
|
|
qr = TRUE;
|
|
}
|
|
|
|
if (o2r)
|
|
reg_names[2] = lookup_o2r (data_unit, reg_nums[2]);
|
|
else
|
|
{
|
|
/* Can't use a DSPRAM reg if both QD and L1 are
|
|
set on a QUICKRoT instruction or if we're a
|
|
split 8. */
|
|
if (((template->arg_type & DSP_ARGS_QR)
|
|
&& ((insn_word & 0x30) == 0x30 && !conditional)) ||
|
|
(is_split8 && is_mod))
|
|
reg_names[2] = lookup_reg_name (data_unit, reg_nums[2]);
|
|
else
|
|
{
|
|
reg_names[2] = lookup_any_reg_name (data_unit,
|
|
reg_nums[2], TRUE);
|
|
if (reg_nums[2] > 15)
|
|
reg_brackets[2] = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (qr)
|
|
{
|
|
len = snprintf (buf, OPERAND_WIDTH, "%s%s%s,%s%s%s,%s%s%s,%s",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
reg_brackets[1] ? "[" : "",
|
|
reg_names[1], reg_brackets[1] ? "]" : "",
|
|
reg_brackets[2] ? "[" : "",
|
|
reg_names[2], reg_brackets[2] ? "]" : "",
|
|
addr_reg);
|
|
}
|
|
else
|
|
{
|
|
if (imm)
|
|
{
|
|
/* Conform to the embedded assembler's policy of
|
|
printing negative numbers as decimal and positive
|
|
as hex. */
|
|
int value = ((insn_word >> 3) & IMM16_MASK);
|
|
|
|
if ((value & 0x8000) || value == 0)
|
|
{
|
|
value = sign_extend (value, IMM16_BITS);
|
|
len = snprintf (buf, OPERAND_WIDTH, "%s%s%s,%s%s%s,#%d",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
reg_brackets[1] ? "[" : "",
|
|
reg_names[1], reg_brackets[1] ? "]" : "",
|
|
value);
|
|
}
|
|
else
|
|
{
|
|
len = snprintf (buf, OPERAND_WIDTH, "%s%s%s,%s%s%s,#%#x",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
reg_brackets[1] ? "[" : "",
|
|
reg_names[1], reg_brackets[1] ? "]" : "",
|
|
value);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
len = snprintf (buf, OPERAND_WIDTH, "%s%s%s,%s%s%s,%s%s%s",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
reg_brackets[1] ? "[" : "", reg_names[1],
|
|
reg_brackets[1] ? "]" : "",
|
|
reg_brackets[2] ? "[" : "",
|
|
reg_names[2], reg_brackets[2] ? "]" : "");
|
|
}
|
|
}
|
|
}
|
|
|
|
snprintf (prefix, DSP_PREFIX_WIDTH, "D%s%s%s%s%s%s%s%s%s%s%s%s",
|
|
cc_flags ? cc_flags : "",
|
|
is_dual ? "L" : "",
|
|
is_quickrot64 ? "Q" : "",
|
|
is_unsigned ? "U" : "",
|
|
is_mod ? "M" : "",
|
|
is_acc_zero ? "Z" : "",
|
|
is_acc_add ? "P" : "", is_acc_sub ? "N" : "",
|
|
is_overflow ? "O" : "",
|
|
is_w_mx ? "W" : "",
|
|
is_b_mx ? "B" : "",
|
|
is_template ? "T" : "");
|
|
}
|
|
else if (template->arg_type & DSP_ARGS_2) /* Group 2. */
|
|
{
|
|
bfd_boolean is_template;
|
|
bfd_boolean o2r = FALSE;
|
|
int major = MAJOR_OPCODE (template->meta_opcode);
|
|
bfd_boolean is_neg_or_mov = (major == OPC_ADD || major == OPC_SUB);
|
|
bfd_boolean is_cmp_tst = ((major == OPC_CMP) &&
|
|
((insn_word & 0x0000002c) == 0));
|
|
bfd_boolean is_fpu_mov = template->insn_type == INSN_DSP_FPU;
|
|
bfd_boolean to_fpu = (template->meta_opcode >> 7) & 0x1;
|
|
|
|
if (major == OPC_9)
|
|
imm = (insn_word & 0x2);
|
|
else if (template->arg_type & DSP_ARGS_IMM)
|
|
imm = ((insn_word >> 25) & 0x1);
|
|
|
|
is_template = (((insn_word & 0x02000002) == 0x2) &&
|
|
major != OPC_9);
|
|
|
|
if (imm)
|
|
is_dual = ((insn_word >> 0x2) & 0x1);
|
|
else
|
|
is_dual = ((insn_word >> 0x4) & 0x1);
|
|
|
|
/* MOV and XSD[BW] do not have o2r. */
|
|
if (major != OPC_9 && major != OPC_MISC)
|
|
o2r = (insn_word & 0x1);
|
|
|
|
if (is_neg_or_mov)
|
|
{
|
|
is_mod = (insn_word & 0x8);
|
|
is_overflow = (insn_word & 0x20);
|
|
}
|
|
|
|
/* XSD */
|
|
if (major == OPC_MISC)
|
|
data_unit = (insn_word & 0x1) ? UNIT_D1 : UNIT_D0;
|
|
else
|
|
data_unit = ((insn_word >> 24) & 0x1) ? UNIT_D1 : UNIT_D0;
|
|
|
|
/* Check for NEG,MOV,ABS,FFB, etc. */
|
|
if (is_neg_or_mov || !is_cmp_tst || imm ||
|
|
MAJOR_OPCODE (insn_word) == OPC_9 ||
|
|
MAJOR_OPCODE (insn_word) == OPC_MISC)
|
|
reg_nums[0] = ((insn_word >> 19) & REG_MASK);
|
|
else
|
|
reg_nums[0] = ((insn_word >> 14) & REG_MASK);
|
|
|
|
if (is_template)
|
|
{
|
|
is_w_mx = (insn_word & 0x1);
|
|
|
|
/* These are dummy arguments anyway so the register number
|
|
does not matter. */
|
|
if (is_fpu_mov)
|
|
{
|
|
if (to_fpu)
|
|
{
|
|
reg_names[0] = lookup_reg_name (UNIT_FX, 0);
|
|
reg_names[1] = lookup_reg_name (data_unit, 0);
|
|
}
|
|
else
|
|
{
|
|
reg_names[0] = lookup_reg_name (data_unit, 0);
|
|
reg_names[1] = lookup_reg_name (UNIT_FX, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
reg_names[0] = lookup_reg_name (data_unit, 0);
|
|
reg_names[1] = lookup_reg_name (data_unit, 0);
|
|
}
|
|
|
|
len = snprintf (buf, OPERAND_WIDTH, "%s,%s",
|
|
reg_names[0], reg_names[1]);
|
|
|
|
decode_template_definition (insn_word, buf + len,
|
|
OPERAND_WIDTH - len);
|
|
}
|
|
else
|
|
{
|
|
if (imm)
|
|
{
|
|
/* Conform to the embedded assembler's policy of
|
|
printing negative numbers as decimal and positive as
|
|
hex. */
|
|
unsigned int value = ((insn_word >> 3) & IMM16_MASK);
|
|
|
|
if (major == OPC_9)
|
|
{
|
|
data_unit = (insn_word & 0x1) ? UNIT_D1 : UNIT_D0;
|
|
is_dual = (insn_word & 0x4);
|
|
|
|
reg_names[0] = __lookup_dsp_name (reg_nums[0], data_unit);
|
|
}
|
|
else
|
|
{
|
|
reg_names[0] = lookup_any_reg_name (data_unit, reg_nums[0], TRUE);
|
|
if (reg_nums[0] > 15)
|
|
reg_brackets[0] = 1;
|
|
}
|
|
|
|
if ((value & 0x8000) || value == 0)
|
|
{
|
|
value = sign_extend (value, IMM16_BITS);
|
|
snprintf (buf, OPERAND_WIDTH, "%s%s%s,#%d",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
value);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s%s%s,#0x%x",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
value);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (is_neg_or_mov || is_cmp_tst)
|
|
reg_nums[1] = ((insn_word >> 9) & REG_MASK);
|
|
else
|
|
reg_nums[1] = ((insn_word >> 14) & REG_MASK);
|
|
|
|
if (major == OPC_9)
|
|
{
|
|
is_dual = (insn_word & 0x4);
|
|
data_unit = (insn_word & 0x1) ? UNIT_D1 : UNIT_D0;
|
|
|
|
if (MINOR_OPCODE (template->meta_opcode) == 0x1)
|
|
reg_names[0] = __lookup_dsp_name (reg_nums[0], data_unit);
|
|
else
|
|
reg_names[0] = lookup_reg_name (data_unit, reg_nums[0]);
|
|
}
|
|
else
|
|
{
|
|
unsigned int reg0_unit = data_unit;
|
|
|
|
if (is_fpu_mov && to_fpu)
|
|
reg0_unit = UNIT_FX;
|
|
|
|
reg_names[0] = lookup_any_reg_name (reg0_unit, reg_nums[0],
|
|
(!is_neg_or_mov && is_cmp_tst));
|
|
if (reg_nums[0] > 15)
|
|
reg_brackets[0] = 1;
|
|
}
|
|
|
|
if (o2r)
|
|
reg_names[1] = lookup_o2r (data_unit, reg_nums[1]);
|
|
else
|
|
{
|
|
/* Check for accumulator argument. */
|
|
if (is_neg_or_mov && ((insn_word & 0x80) == 0x80))
|
|
{
|
|
if (data_unit == UNIT_D0)
|
|
reg_names[1] = lookup_dsp_name (reg_nums[1], UNIT_ACC_D0);
|
|
else
|
|
reg_names[1] = lookup_dsp_name (reg_nums[1], UNIT_ACC_D1);
|
|
}
|
|
else
|
|
{
|
|
if (major == OPC_9)
|
|
{
|
|
if (MINOR_OPCODE (template->meta_opcode) == 0x1)
|
|
{
|
|
reg_names[1] = lookup_reg_name (data_unit, reg_nums[1]);
|
|
}
|
|
else
|
|
{
|
|
enum metag_unit u;
|
|
|
|
u = (insn_word & 0x1) ? UNIT_RAM_D1 : UNIT_RAM_D0;
|
|
reg_names[1] = lookup_dsp_name (reg_nums[1], u);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
reg_names[1] = lookup_any_reg_name (data_unit,
|
|
reg_nums[1], TRUE);
|
|
if (reg_nums[1] > 15)
|
|
reg_brackets[1] = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
snprintf (buf, OPERAND_WIDTH, "%s%s%s,%s%s%s",
|
|
reg_brackets[0] ? "[" : "", reg_names[0],
|
|
reg_brackets[0] ? "]" : "",
|
|
reg_brackets[1] ? "[" : "", reg_names[1],
|
|
reg_brackets[1] ? "]" : "");
|
|
}
|
|
}
|
|
|
|
snprintf (prefix, DSP_PREFIX_WIDTH, "D%s%s%s%s%s%s",
|
|
is_fpu_mov ? "F" : "",
|
|
is_dual ? "L" : "",
|
|
is_mod ? "M" : "", is_overflow ? "O" : "",
|
|
is_w_mx ? "W" : "",
|
|
is_template ? "T" : "");
|
|
}
|
|
else /* Group 3. */
|
|
{
|
|
/* If both the C and CA bits are set, then the Rd register can
|
|
be in any unit. Figure out which unit from the Ud field. */
|
|
bfd_boolean all_units = (((insn_word) & 0x04000020) == 0x04000020);
|
|
enum metag_unit ud_unit = ((insn_word >> 1) & UNIT_MASK);
|
|
enum metag_unit ram_unit, acc_unit;
|
|
bfd_boolean round = FALSE;
|
|
bfd_boolean clamp9 = FALSE;
|
|
bfd_boolean clamp8 = FALSE;
|
|
bfd_boolean is_template = ((insn_word & 0x04000002) == 0x2);
|
|
|
|
imm = ((insn_word >> 25) & 0x1);
|
|
ac = (insn_word & 0x1);
|
|
|
|
conditional = (MINOR_OPCODE (insn_word) & 0x4);
|
|
|
|
/* Check for conditional and not Condition Always. */
|
|
if (conditional && !(insn_word & 0x20))
|
|
cc_flags = lookup_scc_flags ((insn_word >> 1) & CC_MASK);
|
|
else if (!(conditional && (insn_word & 0x20)))
|
|
is_dual = ((insn_word >> 0x4) & 0x1);
|
|
|
|
/* Conditional instructions don't have the L1 or RSPP fields. */
|
|
if ((insn_word & 0x04000000) == 0)
|
|
{
|
|
round = (((insn_word >> 2) & 0x3) == 0x1);
|
|
clamp9 = (((insn_word >> 2) & 0x3) == 0x2);
|
|
clamp8 = (((insn_word >> 2) & 0x3) == 0x3);
|
|
}
|
|
|
|
/* Read DU bit. */
|
|
data_unit = ((insn_word >> 24) & 0x1) ? UNIT_D1 : UNIT_D0;
|
|
reg_nums[0] = ((insn_word >> 19) & REG_MASK);
|
|
reg_nums[1] = ((insn_word >> 14) & REG_MASK);
|
|
|
|
ram_unit = (data_unit == UNIT_D0) ? UNIT_RAM_D0 : UNIT_RAM_D1;
|
|
acc_unit = (data_unit == UNIT_D0) ? UNIT_ACC_D0 : UNIT_ACC_D1;
|
|
|
|
if (all_units)
|
|
reg_names[0] = lookup_reg_name (ud_unit, reg_nums[0]);
|
|
else
|
|
{
|
|
if (conditional)
|
|
reg_names[0] = lookup_reg_name (data_unit, reg_nums[0]);
|
|
else
|
|
{
|
|
reg_names[0] = lookup_any_reg_name (data_unit, reg_nums[0], FALSE);
|
|
if (reg_nums[0] > 15)
|
|
reg_brackets[0] = 1;
|
|
}
|
|
}
|
|
|
|
if (ac)
|
|
{
|
|
reg_names[1] = lookup_dsp_name (reg_nums[1], acc_unit);
|
|
}
|
|
else
|
|
{
|
|
reg_names[1] = lookup_any_reg_name (data_unit, reg_nums[1], TRUE);
|
|
if (reg_nums[1] > 15)
|
|
reg_brackets[1] = 1;
|
|
}
|
|
|
|
if (imm)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s%s%s,%s%s%s,#%#x",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
reg_brackets[1] ? "[" : "",
|
|
reg_names[1], reg_brackets[1] ? "]" : "",
|
|
((insn_word >> 9) & IMM5_MASK));
|
|
}
|
|
else
|
|
{
|
|
reg_nums[2] = ((insn_word >> 9) & REG_MASK);
|
|
|
|
reg_names[2] = lookup_any_reg_name (data_unit, reg_nums[2], TRUE);
|
|
|
|
if (reg_nums[2] > 15)
|
|
reg_brackets[2] = 1;
|
|
|
|
if (is_template)
|
|
{
|
|
bfd_boolean load = ((insn_word >> 13) & 0x1);
|
|
bfd_boolean dspram = (((insn_word >> 17) & 0x3) == 0x3);
|
|
const char *tname[1];
|
|
unsigned int tidx = ((insn_word >> 9) & TEMPLATE_REGS_MASK);
|
|
enum metag_unit au;
|
|
unsigned int addr_reg_nums[2];
|
|
const char *addr_reg_names[2];
|
|
const char *post_op = "";
|
|
const char *join_op = "";
|
|
|
|
is_w_mx = ((insn_word >> 5) & 0x1);
|
|
|
|
tname[0] = lookup_dsp_name (tidx, UNIT_DT);
|
|
|
|
/* These are dummy arguments anyway */
|
|
reg_names[0] = lookup_reg_name (data_unit, 0);
|
|
if (ac)
|
|
reg_names[1] = lookup_dsp_name (16, acc_unit);
|
|
else
|
|
reg_names[1] = lookup_reg_name (data_unit, 0);
|
|
reg_names[2] = lookup_reg_name (data_unit, 0);
|
|
|
|
addr_reg_names[1] = "";
|
|
|
|
if (dspram)
|
|
{
|
|
ram_unit = (data_unit == UNIT_D0) ? UNIT_RAM_D0 : UNIT_RAM_D1;
|
|
addr_reg_nums[0] = ((insn_word >> 19) & REG_MASK);
|
|
addr_reg_names[0] = lookup_dspram_name (addr_reg_nums[0],
|
|
ram_unit, load);
|
|
}
|
|
else
|
|
{
|
|
bfd_boolean im = (((insn_word >> 18) & 0x1) != 0);
|
|
|
|
au = (((insn_word >> 23) & 0x1) == 0) ? UNIT_A0 : UNIT_A1;
|
|
addr_reg_nums[0] = ((insn_word >> 19) & DSP_REG_MASK);
|
|
|
|
addr_reg_names[0] = lookup_reg_name (au, addr_reg_nums[0]);
|
|
|
|
if (im)
|
|
{
|
|
unsigned int im_value = ((insn_word >> 14) & 0x3);
|
|
|
|
switch (im_value)
|
|
{
|
|
case 0x1:
|
|
post_op = "++";
|
|
break;
|
|
case 0x3:
|
|
post_op = "--";
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
addr_reg_nums[1] = ((insn_word >> 14) & DSP_REG_MASK);
|
|
addr_reg_names[1] = lookup_reg_name (au, addr_reg_nums[1]);
|
|
join_op = "+";
|
|
post_op = "++";
|
|
}
|
|
}
|
|
|
|
if (load)
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s %s,[%s%s%s%s]",
|
|
reg_names[0], reg_names[1], reg_names[2],
|
|
tname[0], addr_reg_names[0], join_op,
|
|
addr_reg_names[1], post_op);
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s,%s,%s [%s%s%s%s],%s",
|
|
reg_names[0], reg_names[1], reg_names[2],
|
|
addr_reg_names[0], join_op, addr_reg_names[1],
|
|
post_op, tname[0]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
snprintf (buf, OPERAND_WIDTH, "%s%s%s,%s%s%s,%s%s%s",
|
|
reg_brackets[0] ? "[" : "",
|
|
reg_names[0], reg_brackets[0] ? "]" : "",
|
|
reg_brackets[1] ? "[" : "",
|
|
reg_names[1], reg_brackets[1] ? "]" : "",
|
|
reg_brackets[2] ? "[" : "",
|
|
reg_names[2], reg_brackets[2] ? "]" : "");
|
|
}
|
|
}
|
|
|
|
snprintf (prefix, DSP_PREFIX_WIDTH, "D%s%s%s%s%s%s%s",
|
|
cc_flags ? cc_flags : "",
|
|
is_dual ? "L" : "", clamp9 ? "G" : "",
|
|
clamp8 ? "B" : "", round ? "R" : "",
|
|
is_w_mx ? "W" : "",
|
|
is_template ? "T" : "");
|
|
}
|
|
|
|
print_insn (outf, prefix, template->name, buf);
|
|
|
|
}
|
|
|
|
typedef void (*insn_printer)(unsigned int, bfd_vma, const insn_template *,
|
|
disassemble_info *);
|
|
|
|
/* Printer table. */
|
|
static const insn_printer insn_printers[ENC_MAX] =
|
|
{
|
|
[ENC_NONE] = print_none,
|
|
[ENC_MOV_U2U] = print_mov_u2u,
|
|
[ENC_MOV_PORT] = print_mov_port,
|
|
[ENC_MMOV] = print_mmov,
|
|
[ENC_MDRD] = print_mdrd,
|
|
[ENC_MOVL_TTREC] = print_movl_ttrec,
|
|
[ENC_GET_SET] = print_get_set,
|
|
[ENC_GET_SET_EXT] = print_get_set_ext,
|
|
[ENC_MGET_MSET] = print_mget_mset,
|
|
[ENC_COND_SET] = print_cond_set,
|
|
[ENC_XFR] = print_xfr,
|
|
[ENC_MOV_CT] = print_mov_ct,
|
|
[ENC_SWAP] = print_swap,
|
|
[ENC_JUMP] = print_jump,
|
|
[ENC_CALLR] = print_callr,
|
|
[ENC_ALU] = print_alu,
|
|
[ENC_SHIFT] = print_shift,
|
|
[ENC_MIN_MAX] = print_min_max,
|
|
[ENC_BITOP] = print_bitop,
|
|
[ENC_CMP] = print_cmp,
|
|
[ENC_BRANCH] = print_branch,
|
|
[ENC_KICK] = print_mov_u2u,
|
|
[ENC_SWITCH] = print_switch,
|
|
[ENC_CACHER] = print_cacher,
|
|
[ENC_CACHEW] = print_cachew,
|
|
[ENC_ICACHE] = print_icache,
|
|
[ENC_LNKGET] = print_lnkget,
|
|
[ENC_FMOV] = print_fmov,
|
|
[ENC_FMMOV] = print_fmmov,
|
|
[ENC_FMOV_DATA] = print_fmov_data,
|
|
[ENC_FMOV_I] = print_fmov_i,
|
|
[ENC_FPACK] = print_fpack,
|
|
[ENC_FSWAP] = print_fswap,
|
|
[ENC_FCMP] = print_fcmp,
|
|
[ENC_FMINMAX] = print_fminmax,
|
|
[ENC_FCONV] = print_fconv,
|
|
[ENC_FCONVX] = print_fconvx,
|
|
[ENC_FBARITH] = print_fbarith,
|
|
[ENC_FEARITH] = print_fearith,
|
|
[ENC_FREC] = print_frec,
|
|
[ENC_FSIMD] = print_fsimd,
|
|
[ENC_FGET_SET_ACF] = print_fget_set_acf,
|
|
[ENC_DGET_SET] = print_dget_set,
|
|
[ENC_DTEMPLATE] = print_dtemplate,
|
|
[ENC_DALU] = print_dalu,
|
|
};
|
|
|
|
/* Entry point for instruction printing. */
|
|
int
|
|
print_insn_metag (bfd_vma pc, disassemble_info *outf)
|
|
{
|
|
bfd_byte buf[4];
|
|
unsigned int insn_word;
|
|
size_t i;
|
|
outf->bytes_per_chunk = 4;
|
|
|
|
(*outf->read_memory_func) (pc & ~0x03, buf, 4, outf);
|
|
insn_word = bfd_getl32 (buf);
|
|
|
|
for (i = 0; i < sizeof(metag_optab)/sizeof(metag_optab[0]); i++)
|
|
{
|
|
const insn_template *template = &metag_optab[i];
|
|
|
|
if ((insn_word & template->meta_mask) == template->meta_opcode)
|
|
{
|
|
enum insn_encoding encoding = template->encoding;
|
|
insn_printer printer = insn_printers[encoding];
|
|
|
|
if (printer)
|
|
printer (insn_word, pc, template, outf);
|
|
|
|
return 4;
|
|
}
|
|
}
|
|
|
|
return 4;
|
|
}
|