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Diffstat (limited to 'gdb/vax-pinsn.c')
| -rw-r--r-- | gdb/vax-pinsn.c | 240 |
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; -} |