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authorJohn Gilmore <gnu@cygnus>1990-09-05 17:54:31 +0000
committerJohn Gilmore <gnu@cygnus>1990-09-05 17:54:31 +0000
commit831c851165e112139af1265f294e198401814c1f (patch)
tree5f155fecb9b690be9c428e822d519c2710fefd47 /gdb/vax-pinsn.c
parent7a67dd45ca1c191a0220697a3ec9fa92993caf8c (diff)
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Initial revision
Diffstat (limited to 'gdb/vax-pinsn.c')
-rw-r--r--gdb/vax-pinsn.c240
1 files changed, 0 insertions, 240 deletions
diff --git a/gdb/vax-pinsn.c b/gdb/vax-pinsn.c
deleted file mode 100644
index c4926ec..0000000
--- a/gdb/vax-pinsn.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/* Print vax instructions for GDB, the GNU debugger.
- Copyright (C) 1986, 1989 Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-GDB 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 1, or (at your option)
-any later version.
-
-GDB 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 GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include <stdio.h>
-
-#include "defs.h"
-#include "param.h"
-#include "symtab.h"
-#include "opcode.h"
-
-/* Vax instructions are never longer than this. */
-#define MAXLEN 62
-
-/* Number of elements in the opcode table. */
-#define NOPCODES (sizeof votstrs / sizeof votstrs[0])
-
-extern char *reg_names[];
-
-static unsigned char *print_insn_arg ();
-
-/* Print the vax instruction at address MEMADDR in debugged memory,
- on STREAM. Returns length of the instruction, in bytes. */
-
-int
-print_insn (memaddr, stream)
- CORE_ADDR memaddr;
- FILE *stream;
-{
- unsigned char buffer[MAXLEN];
- register int i;
- register unsigned char *p;
- register char *d;
-
- read_memory (memaddr, buffer, MAXLEN);
-
- for (i = 0; i < NOPCODES; i++)
- if (votstrs[i].detail.code == buffer[0]
- || votstrs[i].detail.code == *(unsigned short *)buffer)
- break;
-
- /* Handle undefined instructions. */
- if (i == NOPCODES)
- {
- fprintf (stream, "0%o", buffer[0]);
- return 1;
- }
-
- fprintf (stream, "%s", votstrs[i].name);
-
- /* Point at first byte of argument data,
- and at descriptor for first argument. */
- p = buffer + 1 + (votstrs[i].detail.code >= 0x100);
- d = votstrs[i].detail.args;
-
- if (*d)
- fputc (' ', stream);
-
- while (*d)
- {
- p = print_insn_arg (d, p, memaddr + (p - buffer), stream);
- d += 2;
- if (*d)
- fprintf (stream, ",");
- }
- return p - buffer;
-}
-
-static unsigned char *
-print_insn_arg (d, p, addr, stream)
- char *d;
- register char *p;
- CORE_ADDR addr;
- FILE *stream;
-{
- register int regnum = *p & 0xf;
- float floatlitbuf;
-
- if (*d == 'b')
- {
- if (d[1] == 'b')
- fprintf (stream, "0x%x", addr + *p++ + 1);
- else
- {
- fprintf (stream, "0x%x", addr + *(short *)p + 2);
- p += 2;
- }
- }
- else
- switch ((*p++ >> 4) & 0xf)
- {
- case 0:
- case 1:
- case 2:
- case 3: /* Literal mode */
- if (d[1] == 'd' || d[1] == 'f' || d[1] == 'g' || d[1] == 'h')
- {
- *(int *)&floatlitbuf = 0x4000 + ((p[-1] & 0x3f) << 4);
- fprintf (stream, "$%f", floatlitbuf);
- }
- else
- fprintf (stream, "$%d", p[-1] & 0x3f);
- break;
-
- case 4: /* Indexed */
- p = (char *) print_insn_arg (d, p, addr + 1, stream);
- fprintf (stream, "[%s]", reg_names[regnum]);
- break;
-
- case 5: /* Register */
- fprintf (stream, reg_names[regnum]);
- break;
-
- case 7: /* Autodecrement */
- fputc ('-', stream);
- case 6: /* Register deferred */
- fprintf (stream, "(%s)", reg_names[regnum]);
- break;
-
- case 9: /* Autoincrement deferred */
- fputc ('@', stream);
- if (regnum == PC_REGNUM)
- {
- fputc ('#', stream);
- print_address (*(long *)p, stream);
- p += 4;
- break;
- }
- case 8: /* Autoincrement */
- if (regnum == PC_REGNUM)
- {
- fputc ('#', stream);
- switch (d[1])
- {
- case 'b':
- fprintf (stream, "%d", *p++);
- break;
-
- case 'w':
- fprintf (stream, "%d", *(short *)p);
- p += 2;
- break;
-
- case 'l':
- fprintf (stream, "%d", *(long *)p);
- p += 4;
- break;
-
- case 'q':
- fprintf (stream, "0x%x%08x", ((long *)p)[1], ((long *)p)[0]);
- p += 8;
- break;
-
- case 'o':
- fprintf (stream, "0x%x%08x%08x%08x",
- ((long *)p)[3], ((long *)p)[2],
- ((long *)p)[1], ((long *)p)[0]);
- p += 16;
- break;
-
- case 'f':
- if (INVALID_FLOAT (p, 4))
- fprintf (stream, "<<invalid float 0x%x>>", *(int *) p);
- else
- fprintf (stream, "%f", *(float *) p);
- p += 4;
- break;
-
- case 'd':
- if (INVALID_FLOAT (p, 8))
- fprintf (stream, "<<invalid float 0x%x%08x>>",
- ((long *)p)[1], ((long *)p)[0]);
- else
- fprintf (stream, "%f", *(double *) p);
- p += 8;
- break;
-
- case 'g':
- fprintf (stream, "g-float");
- p += 8;
- break;
-
- case 'h':
- fprintf (stream, "h-float");
- p += 16;
- break;
-
- }
- }
- else
- fprintf (stream, "(%s)+", reg_names[regnum]);
- break;
-
- case 11: /* Byte displacement deferred */
- fputc ('@', stream);
- case 10: /* Byte displacement */
- if (regnum == PC_REGNUM)
- print_address (addr + *p + 2, stream);
- else
- fprintf (stream, "%d(%s)", *p, reg_names[regnum]);
- p += 1;
- break;
-
- case 13: /* Word displacement deferred */
- fputc ('@', stream);
- case 12: /* Word displacement */
- if (regnum == PC_REGNUM)
- print_address (addr + *(short *)p + 3, stream);
- else
- fprintf (stream, "%d(%s)", *(short *)p, reg_names[regnum]);
- p += 2;
- break;
-
- case 15: /* Long displacement deferred */
- fputc ('@', stream);
- case 14: /* Long displacement */
- if (regnum == PC_REGNUM)
- print_address (addr + *(long *)p + 5, stream);
- else
- fprintf (stream, "%d(%s)", *(long *)p, reg_names[regnum]);
- p += 4;
- }
-
- return (unsigned char *) p;
-}