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Diffstat (limited to 'opcodes/i370-dis.c')
| -rw-r--r-- | opcodes/i370-dis.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/opcodes/i370-dis.c b/opcodes/i370-dis.c deleted file mode 100644 index 51c0ff1dd3e..00000000000 --- a/opcodes/i370-dis.c +++ /dev/null @@ -1,166 +0,0 @@ - -/* i370-dis.c -- Disassemble Instruction 370 (ESA/390) instructions - Copyright 1994, 2000 Free Software Foundation, Inc. - PowerPC version written by Ian Lance Taylor, Cygnus Support - Rewritten for i370 ESA/390 support by Linas Vepstas <linas@linas.org> - -This file is part of GDB, GAS, and the GNU binutils. - -GDB, GAS, and the GNU binutils are free software; you can redistribute -them and/or modify them under the terms of the GNU General Public -License as published by the Free Software Foundation; either version -2, or (at your option) any later version. - -GDB, GAS, and the GNU binutils are distributed in the hope that they -will be useful, but WITHOUT ANY WARRANTY; without even the implied -warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -the GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this file; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include <stdio.h> -#include "sysdep.h" -#include "dis-asm.h" -#include "opcode/i370.h" - -/* This file provides several disassembler functions, all of which use - the disassembler interface defined in dis-asm.h. -*/ - -int -print_insn_i370 (memaddr, info) - bfd_vma memaddr; - struct disassemble_info *info; -{ - bfd_byte buffer[8]; - int status; - i370_insn_t insn; - const struct i370_opcode *opcode; - const struct i370_opcode *opcode_end; - - status = (*info->read_memory_func) (memaddr, buffer, 6, info); - if (status != 0) - { - (*info->memory_error_func) (status, memaddr, info); - return -1; - } - - /* Cast the bytes into the insn (in a host-endian indep way) */ - insn.i[0] = (buffer[0] << 24) & 0xff000000; - insn.i[0] |= (buffer[1] << 16) & 0xff0000; - insn.i[0] |= (buffer[2] << 8) & 0xff00; - insn.i[0] |= buffer[3] & 0xff; - insn.i[1] = (buffer[4] << 24) & 0xff000000; - insn.i[1] |= (buffer[5] << 16) & 0xff0000; - - /* Find the first match in the opcode table. We could speed this up - a bit by doing a binary search on the major opcode. */ - opcode_end = i370_opcodes + i370_num_opcodes; - for (opcode = i370_opcodes; opcode < opcode_end; opcode++) - { - const unsigned char *opindex; - const struct i370_operand *operand; - i370_insn_t masked; - int invalid; - - /* Mask off operands, and look for a match ... */ - masked = insn; - if (2 == opcode->len) - { - masked.i[0] >>= 16; - masked.i[0] &= 0xffff; - } - masked.i[0] &= opcode->mask.i[0]; - if (masked.i[0] != opcode->opcode.i[0]) continue; - - if (6 == opcode->len) - { - masked.i[1] &= opcode->mask.i[1]; - if (masked.i[1] != opcode->opcode.i[1]) continue; - } - - /* Found a match. adjust a tad */ - if (2 == opcode->len) - { - insn.i[0] >>= 16; - insn.i[0] &= 0xffff; - } - - /* Make two passes over the operands. First see if any of them - have extraction functions, and, if they do, make sure the - instruction is valid. */ - invalid = 0; - for (opindex = opcode->operands; *opindex != 0; opindex++) - { - operand = i370_operands + *opindex; - if (operand->extract) - (*operand->extract) (insn, &invalid); - } - if (invalid) continue; - - /* The instruction is valid. */ - (*info->fprintf_func) (info->stream, "%s", opcode->name); - if (opcode->operands[0] != 0) - (*info->fprintf_func) (info->stream, "\t"); - - /* Now extract and print the operands. */ - for (opindex = opcode->operands; *opindex != 0; opindex++) - { - long value; - - operand = i370_operands + *opindex; - - /* Extract the value from the instruction. */ - if (operand->extract) - value = (*operand->extract) (insn, (int *) NULL); - else - { - value = (insn.i[0] >> operand->shift) & ((1 << operand->bits) - 1); - } - - /* Print the operand as directed by the flags. */ - if ((operand->flags & I370_OPERAND_OPTIONAL) != 0) - { - if (value) - (*info->fprintf_func) (info->stream, "(r%ld)", value); - } - else if ((operand->flags & I370_OPERAND_SBASE) != 0) - { - (*info->fprintf_func) (info->stream, "(r%ld)", value); - } - else if ((operand->flags & I370_OPERAND_INDEX) != 0) - { - if (value) - (*info->fprintf_func) (info->stream, "(r%ld,", value); - else - (*info->fprintf_func) (info->stream, "(,"); - } - else if ((operand->flags & I370_OPERAND_LENGTH) != 0) - { - (*info->fprintf_func) (info->stream, "(%ld,", value); - } - else if ((operand->flags & I370_OPERAND_BASE) != 0) - (*info->fprintf_func) (info->stream, "r%ld)", value); - else if ((operand->flags & I370_OPERAND_GPR) != 0) - (*info->fprintf_func) (info->stream, "r%ld,", value); - else if ((operand->flags & I370_OPERAND_FPR) != 0) - (*info->fprintf_func) (info->stream, "f%ld,", value); - else if ((operand->flags & I370_OPERAND_RELATIVE) != 0) - (*info->fprintf_func) (info->stream, "%ld", value); - else - (*info->fprintf_func) (info->stream, " %ld, ", value); - - } - - return opcode->len; - - } - - - /* We could not find a match. */ - (*info->fprintf_func) (info->stream, ".short 0x%02x%02x", buffer[0], buffer[1]); - - return 2; -} |