/* Print mips instructions for GDB, the GNU debugger.
- Copyright (C) 1989 Free Software Foundation, Inc.
- Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp)
+ Copyright 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
This file is part of GDB.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <stdio.h>
-
#include "defs.h"
-#include "param.h"
-#include "symtab.h"
-#include "mips-opcode.h"
-
-/* Mips instructions are never longer than this many bytes. */
-#define MAXLEN 4
-
-/* Number of elements in the opcode table. */
-#define NOPCODES (sizeof mips_opcodes / sizeof mips_opcodes[0])
-
-#define MKLONG(p) *(unsigned long*)p
-
-extern char *reg_names[];
-
-\f
-/* subroutine */
-static unsigned char *
-print_insn_arg (d, l, stream, pc)
- char *d;
- register unsigned long int *l;
- FILE *stream;
- CORE_ADDR pc;
-{
- switch (*d)
- {
- case ',':
- case '(':
- case ')':
- fputc (*d, stream);
- break;
-
- case 's':
- fprintf (stream, "$%s", reg_names[((struct op_i_fmt *) l)->rs]);
- break;
-
- case 't':
- fprintf (stream, "$%s", reg_names[((struct op_i_fmt *) l)->rt]);
- break;
-
- case 'i':
- fprintf (stream, "%d", ((struct op_i_fmt *) l)->immediate);
- break;
-
- case 'j': /* same as i, but sign-extended */
- fprintf (stream, "%d", ((struct op_b_fmt *) l)->delta);
- break;
-
- case 'a':
- print_address ((pc & 0xF0000000) | (((struct op_j_fmt *)l)->target << 2),
- stream);
- break;
-
- case 'b':
- print_address ((((struct op_b_fmt *) l)->delta << 2) + pc + 4, stream);
- break;
+#include "dis-asm.h"
- case 'd':
- fprintf (stream, "%s", reg_names[((struct op_r_fmt *) l)->rd]);
- break;
-
- case 'h':
- fprintf (stream, "0x%x", ((struct op_r_fmt *) l)->shamt);
- break;
-
- case 'S':
- fprintf (stream, "$f%d", ((struct fop_r_fmt *) l)->fs);
- break;
-
- case 'T':
- fprintf (stream, "$f%d", ((struct fop_r_fmt *) l)->ft);
- break;
-
- case 'D':
- fprintf (stream, "$f%d", ((struct fop_r_fmt *) l)->fd);
- break;
-
- default:
- fprintf (stream, "# internal error, undefined modifier(%c)", *d);
- break;
- }
-}
-\f
/* Print the mips instruction at address MEMADDR in debugged memory,
on STREAM. Returns length of the instruction, in bytes, which
is always 4. */
int
print_insn (memaddr, stream)
CORE_ADDR memaddr;
- FILE *stream;
+ GDB_FILE *stream;
{
- unsigned char buffer[MAXLEN];
- register int i;
- register char *d;
- unsigned long int l;
-
- read_memory (memaddr, buffer, MAXLEN);
-
- for (i = 0; i < NOPCODES; i++)
- {
- register unsigned int opcode = mips_opcodes[i].opcode;
- register unsigned int match = mips_opcodes[i].match;
- if ((*(unsigned int*)buffer & match) == opcode)
- break;
- }
-
- l = MKLONG (buffer);
- /* Handle undefined instructions. */
- if (i == NOPCODES)
- {
- fprintf (stream, "0x%x",l);
- return 4;
- }
-
- fprintf (stream, "%s", mips_opcodes[i].name);
-
- if (!(d = mips_opcodes[i].args))
- return 4;
-
- fputc (' ', stream);
+ disassemble_info info;
- while (*d)
- print_insn_arg (d++, &l, stream, memaddr);
+ GDB_INIT_DISASSEMBLE_INFO(info, stream);
- return 4;
+ /* print_insn_mips is in opcodes/mips-dis.c. */
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ return print_insn_big_mips ((bfd_vma) memaddr, &info);
+ else
+ return print_insn_little_mips ((bfd_vma) memaddr, &info);
}