From 071ea11e85eb9d529cc5eb3d35f6247466a21b99 Mon Sep 17 00:00:00 2001 From: Stan Shebs Date: Fri, 16 Apr 1999 01:34:07 +0000 Subject: Initial creation of sourceware repository --- gdb/vax-tdep.c | 263 --------------------------------------------------------- 1 file changed, 263 deletions(-) delete mode 100644 gdb/vax-tdep.c (limited to 'gdb/vax-tdep.c') diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c deleted file mode 100644 index b378571..0000000 --- a/gdb/vax-tdep.c +++ /dev/null @@ -1,263 +0,0 @@ -/* Print VAX instructions for GDB, the GNU debugger. - Copyright 1986, 1989, 1991, 1992, 1996 Free Software Foundation, Inc. - -This file is part of GDB. - -This program 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 "defs.h" -#include "symtab.h" -#include "opcode/vax.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]) - -static unsigned char *print_insn_arg (); - -/* Print the vax instruction at address MEMADDR in debugged memory, - from disassembler info INFO. - Returns length of the instruction, in bytes. */ - -static int -vax_print_insn (memaddr, info) - CORE_ADDR memaddr; - disassemble_info *info; -{ - unsigned char buffer[MAXLEN]; - register int i; - register unsigned char *p; - register char *d; - - int status = (*info->read_memory_func) (memaddr, buffer, MAXLEN, info); - if (status != 0) - { - (*info->memory_error_func) (status, memaddr, info); - return -1; - } - - 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) - { - (*info->fprintf_func) (info->stream, "0%o", buffer[0]); - return 1; - } - - (*info->fprintf_func) (info->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) - (*info->fprintf_func) (info->stream, " "); - - while (*d) - { - p = print_insn_arg (d, p, memaddr + (p - buffer), info); - d += 2; - if (*d) - (*info->fprintf_func) (info->stream, ","); - } - return p - buffer; -} - -static unsigned char * -print_insn_arg (d, p, addr, info) - char *d; - register char *p; - CORE_ADDR addr; - disassemble_info *info; -{ - register int regnum = *p & 0xf; - float floatlitbuf; - - if (*d == 'b') - { - if (d[1] == 'b') - (*info->fprintf_func) (info->stream, "0x%x", addr + *p++ + 1); - else - { - (*info->fprintf_func) (info->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); - (*info->fprintf_func) (info->stream, "$%f", floatlitbuf); - } - else - (*info->fprintf_func) (info->stream, "$%d", p[-1] & 0x3f); - break; - - case 4: /* Indexed */ - p = (char *) print_insn_arg (d, p, addr + 1, info); - (*info->fprintf_func) (info->stream, "[%s]", REGISTER_NAME (regnum)); - break; - - case 5: /* Register */ - (*info->fprintf_func) (info->stream, REGISTER_NAME (regnum)); - break; - - case 7: /* Autodecrement */ - (*info->fprintf_func) (info->stream, "-"); - case 6: /* Register deferred */ - (*info->fprintf_func) (info->stream, "(%s)", REGISTER_NAME (regnum)); - break; - - case 9: /* Autoincrement deferred */ - (*info->fprintf_func) (info->stream, "@"); - if (regnum == PC_REGNUM) - { - (*info->fprintf_func) (info->stream, "#"); - info->target = *(long *)p; - (*info->print_address_func) (info->target, info); - p += 4; - break; - } - case 8: /* Autoincrement */ - if (regnum == PC_REGNUM) - { - (*info->fprintf_func) (info->stream, "#"); - switch (d[1]) - { - case 'b': - (*info->fprintf_func) (info->stream, "%d", *p++); - break; - - case 'w': - (*info->fprintf_func) (info->stream, "%d", *(short *)p); - p += 2; - break; - - case 'l': - (*info->fprintf_func) (info->stream, "%d", *(long *)p); - p += 4; - break; - - case 'q': - (*info->fprintf_func) (info->stream, "0x%x%08x", - ((long *)p)[1], ((long *)p)[0]); - p += 8; - break; - - case 'o': - (*info->fprintf_func) (info->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)) - (*info->fprintf_func) (info->stream, - "<>", - *(int *) p); - else - (*info->fprintf_func) (info->stream, "%f", *(float *) p); - p += 4; - break; - - case 'd': - if (INVALID_FLOAT (p, 8)) - (*info->fprintf_func) (info->stream, - "<>", - ((long *)p)[1], ((long *)p)[0]); - else - (*info->fprintf_func) (info->stream, "%f", *(double *) p); - p += 8; - break; - - case 'g': - (*info->fprintf_func) (info->stream, "g-float"); - p += 8; - break; - - case 'h': - (*info->fprintf_func) (info->stream, "h-float"); - p += 16; - break; - - } - } - else - (*info->fprintf_func) (info->stream, "(%s)+", REGISTER_NAME (regnum)); - break; - - case 11: /* Byte displacement deferred */ - (*info->fprintf_func) (info->stream, "@"); - case 10: /* Byte displacement */ - if (regnum == PC_REGNUM) - { - info->target = addr + *p + 2; - (*info->print_address_func) (info->target, info); - } - else - (*info->fprintf_func) (info->stream, "%d(%s)", *p, REGISTER_NAME (regnum)); - p += 1; - break; - - case 13: /* Word displacement deferred */ - (*info->fprintf_func) (info->stream, "@"); - case 12: /* Word displacement */ - if (regnum == PC_REGNUM) - { - info->target = addr + *(short *)p + 3; - (*info->print_address_func) (info->target, info); - } - else - (*info->fprintf_func) (info->stream, "%d(%s)", - *(short *)p, REGISTER_NAME (regnum)); - p += 2; - break; - - case 15: /* Long displacement deferred */ - (*info->fprintf_func) (info->stream, "@"); - case 14: /* Long displacement */ - if (regnum == PC_REGNUM) - { - info->target = addr + *(short *)p + 5; - (*info->print_address_func) (info->target, info); - } - else - (*info->fprintf_func) (info->stream, "%d(%s)", - *(long *)p, REGISTER_NAME (regnum)); - p += 4; - } - - return (unsigned char *) p; -} - -void -_initialize_vax_tdep () -{ - tm_print_insn = vax_print_insn; -} -- cgit v1.1