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Diffstat (limited to 'opcodes/pdp11-dis.c')
-rw-r--r--opcodes/pdp11-dis.c323
1 files changed, 0 insertions, 323 deletions
diff --git a/opcodes/pdp11-dis.c b/opcodes/pdp11-dis.c
deleted file mode 100644
index e13c7aabdcf..00000000000
--- a/opcodes/pdp11-dis.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/* Print DEC PDP-11 instructions.
- Copyright 2001 Free Software Foundation, Inc.
-
-This file is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "dis-asm.h"
-#include "opcode/pdp11.h"
-
-#define AFTER_INSTRUCTION "\t"
-#define OPERAND_SEPARATOR ", "
-
-#define JUMP 0x1000 /* flag that this operand is used in a jump */
-
-#define FPRINTF (*info->fprintf_func)
-#define F info->stream
-
-/* sign-extend a 16-bit number in an int */
-#define SIGN_BITS (8 * sizeof (int) - 16)
-#define sign_extend(x) (((x) << SIGN_BITS) >> SIGN_BITS)
-
-static int read_word PARAMS ((bfd_vma memaddr, int *word,
- disassemble_info *info));
-static void print_signed_octal PARAMS ((int n, disassemble_info *info));
-static void print_reg PARAMS ((int reg, disassemble_info *info));
-static void print_freg PARAMS ((int freg, disassemble_info *info));
-static int print_operand PARAMS ((bfd_vma *memaddr, int code,
- disassemble_info *info));
-int print_insn_pdp11 PARAMS ((bfd_vma memaddr, disassemble_info *info));
-
-static int
-read_word (memaddr, word, info)
- bfd_vma memaddr;
- int *word;
- disassemble_info *info;
-{
- int status;
- bfd_byte x[2];
-
- status = (*info->read_memory_func) (memaddr, x, 2, info);
- if (status != 0)
- return -1;
-
- *word = x[1] << 8 | x[0];
- return 0;
-}
-
-static void
-print_signed_octal (n, info)
- int n;
- disassemble_info *info;
-{
- if (n < 0)
- FPRINTF (F, "-%o", -n);
- else
- FPRINTF (F, "%o", n);
-}
-
-static void
-print_reg (reg, info)
- int reg;
- disassemble_info *info;
-{
- /* mask off the addressing mode, if any */
- reg &= 7;
-
- switch (reg)
- {
- case 0: case 1: case 2: case 3: case 4: case 5:
- FPRINTF (F, "r%d", reg); break;
- case 6: FPRINTF (F, "sp"); break;
- case 7: FPRINTF (F, "pc"); break;
- default: /* error */
- }
-}
-
-static void
-print_freg (freg, info)
- int freg;
- disassemble_info *info;
-{
- FPRINTF (F, "fr%d", freg);
-}
-
-static int
-print_operand (memaddr, code, info)
- bfd_vma *memaddr;
- int code;
- disassemble_info *info;
-{
- int mode = (code >> 3) & 7;
- int reg = code & 7;
- int disp;
-
- switch (mode)
- {
- case 0:
- print_reg (reg, info);
- break;
- case 1:
- FPRINTF (F, "(");
- print_reg (reg, info);
- FPRINTF (F, ")");
- break;
- case 2:
- if (reg == 7)
- {
- int data;
- if (read_word (*memaddr, &data, info) < 0)
- return -1;
- FPRINTF (F, "$");
- print_signed_octal (sign_extend (data), info);
- *memaddr += 2;
- }
- else
- {
- FPRINTF (F, "(");
- print_reg (reg, info);
- FPRINTF (F, ")+");
- }
- break;
- case 3:
- if (reg == 7)
- {
- int address;
- if (read_word (*memaddr, &address, info) < 0)
- return -1;
- FPRINTF (F, "*$%o", address);
- *memaddr += 2;
- }
- else
- {
- FPRINTF (F, "*(");
- print_reg (reg, info);
- FPRINTF (F, ")+");
- }
- break;
- case 4:
- FPRINTF (F, "-(");
- print_reg (reg, info);
- FPRINTF (F, ")");
- break;
- case 5:
- FPRINTF (F, "*-(");
- print_reg (reg, info);
- FPRINTF (F, ")");
- break;
- case 6:
- case 7:
- if (read_word (*memaddr, &disp, info) < 0)
- return -1;
- *memaddr += 2;
- if (reg == 7)
- {
- bfd_vma address = *memaddr + sign_extend (disp);
- if (!(code & JUMP))
- FPRINTF (F, "*$");
- (*info->print_address_func) (address, info);
- }
- else
- {
- if (mode == 7)
- FPRINTF (F, "*");
- print_signed_octal (sign_extend (disp), info);
- FPRINTF (F, "(");
- print_reg (reg, info);
- FPRINTF (F, ")");
- }
- break;
- }
-
- return 0;
-}
-
-/* Print the PDP-11 instruction at address MEMADDR in debugged memory,
- on INFO->STREAM. Returns length of the instruction, in bytes. */
-
-int
-print_insn_pdp11 (memaddr, info)
- bfd_vma memaddr;
- disassemble_info *info;
-{
- bfd_vma start_memaddr = memaddr;
- int opcode;
- int src, dst;
- int i;
-
- info->bytes_per_line = 6;
- info->bytes_per_chunk = 2;
- info->display_endian = BFD_ENDIAN_LITTLE;
-
- if (read_word (memaddr, &opcode, info) != 0)
- return -1;
- memaddr += 2;
-
- src = (opcode >> 6) & 0x3f;
- dst = opcode & 0x3f;
-
- for (i = 0; i < pdp11_num_opcodes; i++)
- {
-#define OP pdp11_opcodes[i]
- if ((opcode & OP.mask) == OP.opcode)
- switch (OP.type)
- {
- case PDP11_OPCODE_NO_OPS:
- FPRINTF (F, OP.name);
- break;
- case PDP11_OPCODE_REG:
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- print_reg (dst, info);
- break;
- case PDP11_OPCODE_OP:
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- if (strcmp (OP.name, "jmp") == 0)
- dst |= JUMP;
- if (print_operand (&memaddr, dst, info) < 0)
- return -1;
- break;
- case PDP11_OPCODE_REG_OP:
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- print_reg (src, info);
- FPRINTF (F, OPERAND_SEPARATOR);
- if (strcmp (OP.name, "jsr") == 0)
- dst |= JUMP;
- if (print_operand (&memaddr, dst, info) < 0)
- return -1;
- break;
- case PDP11_OPCODE_REG_OP_REV:
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- if (print_operand (&memaddr, dst, info) < 0)
- return -1;
- FPRINTF (F, OPERAND_SEPARATOR);
- print_reg (src, info);
- break;
- case PDP11_OPCODE_AC_OP:
- {
- int ac = (opcode & 0xe0) >> 6;
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- print_freg (ac, info);
- FPRINTF (F, OPERAND_SEPARATOR);
- if (print_operand (&memaddr, dst, info) < 0)
- return -1;
- break;
- }
- case PDP11_OPCODE_OP_OP:
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- if (print_operand (&memaddr, src, info) < 0)
- return -1;
- FPRINTF (F, OPERAND_SEPARATOR);
- if (print_operand (&memaddr, dst, info) < 0)
- return -1;
- break;
- case PDP11_OPCODE_DISPL:
- {
- int displ = (opcode & 0xff) << 8;
- bfd_vma address = memaddr + (sign_extend (displ) >> 7);
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- (*info->print_address_func) (address, info);
- break;
- }
- case PDP11_OPCODE_REG_DISPL:
- {
- int displ = (opcode & 0x3f) << 10;
- bfd_vma address = memaddr + (sign_extend (displ) >> 9);
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- print_reg (src, info);
- FPRINTF (F, OPERAND_SEPARATOR);
- (*info->print_address_func) (address, info);
- break;
- }
- case PDP11_OPCODE_IMM8:
- {
- int code = opcode & 0xff;
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- FPRINTF (F, "%o", code);
- break;
- }
- case PDP11_OPCODE_IMM6:
- {
- int code = opcode & 0x3f;
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- FPRINTF (F, "%o", code);
- break;
- }
- case PDP11_OPCODE_IMM3:
- {
- int code = opcode & 7;
- FPRINTF (F, OP.name);
- FPRINTF (F, AFTER_INSTRUCTION);
- FPRINTF (F, "%o", code);
- break;
- }
- default:
- /* TODO: is this a proper way of signalling an error? */
- FPRINTF (F, "<internal error: unrecognized instruction type>");
- return -1;
- }
-#undef OP
- }
-
- return memaddr - start_memaddr;
-}
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