-/* Print instructions for Tahoe target machines, for GDB.
- Copyright 1986, 1989, 1991, 1992 Free Software Foundation, Inc.
- Contributed by the State University of New York at Buffalo, by the
- Distributed Computer Systems Lab, Department of Computer Science, 1991.
-
-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/tahoe.h"
-
-/* Tahoe 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 Tahoe instruction at address MEMADDR in debugged memory,
- on STREAM. Returns length of the instruction, in bytes. */
-
-int
-tahoe_print_insn (memaddr, stream)
- CORE_ADDR memaddr;
- GDB_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_unfiltered (stream, "0%o", buffer[0]);
- return 1;
- }
-
- fprintf_unfiltered (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_unfiltered ('\t', stream);
-
- while (*d)
- {
- p = print_insn_arg (d, p, memaddr + (p - buffer), stream);
- d += 2;
- if (*d)
- fprintf_unfiltered (stream, ",");
- }
- return p - buffer;
-}
-/*******************************************************************/
-static unsigned char *
-print_insn_arg (d, p, addr, stream)
- char *d;
- register char *p;
- CORE_ADDR addr;
- GDB_FILE *stream;
-{
- int temp1 = 0;
- register int regnum = *p & 0xf;
- float floatlitbuf;
-
- if (*d == 'b')
- {
- if (d[1] == 'b')
- fprintf_unfiltered (stream, "0x%x", addr + *p++ + 1);
- else
- {
-
- temp1 = *p;
- temp1 <<= 8;
- temp1 |= *(p + 1);
- fprintf_unfiltered (stream, "0x%x", addr + temp1 + 2);
- p += 2;
- }
- }
- else
- switch ((*p++ >> 4) & 0xf)
- {
- case 0:
- case 1:
- case 2:
- case 3: /* Literal (short immediate byte) mode */
- if (d[1] == 'd' || d[1] == 'f' || d[1] == 'g' || d[1] == 'h')
- {
- *(int *)&floatlitbuf = 0x4000 + ((p[-1] & 0x3f) << 4);
- fprintf_unfiltered (stream, "$%f", floatlitbuf);
- }
- else
- fprintf_unfiltered (stream, "$%d", p[-1] & 0x3f);
- break;
-
- case 4: /* Indexed */
- p = (char *) print_insn_arg (d, p, addr + 1, stream);
- fprintf_unfiltered (stream, "[%s]", REGISTER_NAME (regnum));
- break;
-
- case 5: /* Register */
- fprintf_unfiltered (stream, REGISTER_NAME (regnum));
- break;
-
- case 7: /* Autodecrement */
- fputc_unfiltered ('-', stream);
- case 6: /* Register deferred */
- fprintf_unfiltered (stream, "(%s)", REGISTER_NAME (regnum));
- break;
-
- case 9: /* Absolute Address & Autoincrement deferred */
- fputc_unfiltered ('*', stream);
- if (regnum == PC_REGNUM)
- {
- temp1 = *p;
- temp1 <<= 8;
- temp1 |= *(p +1);
-
- fputc_unfiltered ('$', stream);
- print_address (temp1, stream);
- p += 4;
- break;
- }
- case 8: /*Immediate & Autoincrement SP */
- if (regnum == 8) /*88 is Immediate Byte Mode*/
- fprintf_unfiltered (stream, "$%d", *p++);
-
- else if (regnum == 9) /*89 is Immediate Word Mode*/
- {
- temp1 = *p;
- temp1 <<= 8;
- temp1 |= *(p +1);
- fprintf_unfiltered (stream, "$%d", temp1);
- p += 2;
- }
-
- else if (regnum == PC_REGNUM) /*8F is Immediate Long Mode*/
- {
- temp1 = *p;
- temp1 <<=8;
- temp1 |= *(p +1);
- temp1 <<=8;
- temp1 |= *(p +2);
- temp1 <<= 8;
- temp1 |= *(p +3);
- fprintf_unfiltered (stream, "$%d", temp1);
- p += 4;
- }
-
- else /*8E is Autoincrement SP Mode*/
- fprintf_unfiltered (stream, "(%s)+", REGISTER_NAME (regnum));
- break;
-
- case 11: /* Register + Byte Displacement Deferred Mode*/
- fputc_unfiltered ('*', stream);
- case 10: /* Register + Byte Displacement Mode*/
- if (regnum == PC_REGNUM)
- print_address (addr + *p + 2, stream);
- else
- fprintf_unfiltered (stream, "%d(%s)", *p, REGISTER_NAME (regnum));
- p += 1;
- break;
-
- case 13: /* Register + Word Displacement Deferred Mode*/
- fputc_unfiltered ('*', stream);
- case 12: /* Register + Word Displacement Mode*/
- temp1 = *p;
- temp1 <<= 8;
- temp1 |= *(p +1);
- if (regnum == PC_REGNUM)
- print_address (addr + temp1 + 3, stream);
- else
- fprintf_unfiltered (stream, "%d(%s)", temp1, REGISTER_NAME (regnum));
- p += 2;
- break;
-
- case 15: /* Register + Long Displacement Deferred Mode*/
- fputc_unfiltered ('*', stream);
- case 14: /* Register + Long Displacement Mode*/
- temp1 = *p;
- temp1 <<= 8;
- temp1 |= *(p +1);
- temp1 <<= 8;
- temp1 |= *(p +2);
- temp1 <<= 8;
- temp1 |= *(p +3);
- if (regnum == PC_REGNUM)
- print_address (addr + temp1 + 5, stream);
- else
- fprintf_unfiltered (stream, "%d(%s)", temp1, REGISTER_NAME (regnum));
- p += 4;
- }
-
- return (unsigned char *) p;
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
+/* OBSOLETE /* Print instructions for Tahoe target machines, for GDB. */
+/* OBSOLETE Copyright 1986, 1989, 1991, 1992, 2000 Free Software Foundation, Inc. */
+/* OBSOLETE Contributed by the State University of New York at Buffalo, by the */
+/* OBSOLETE Distributed Computer Systems Lab, Department of Computer Science, 1991. */
+/* OBSOLETE */
+/* OBSOLETE This file is part of GDB. */
+/* OBSOLETE */
+/* OBSOLETE This program is free software; you can redistribute it and/or modify */
+/* OBSOLETE it under the terms of the GNU General Public License as published by */
+/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
+/* OBSOLETE (at your option) any later version. */
+/* OBSOLETE */
+/* OBSOLETE This program is distributed in the hope that it will be useful, */
+/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
+/* OBSOLETE GNU General Public License for more details. */
+/* OBSOLETE */
+/* OBSOLETE You should have received a copy of the GNU General Public License */
+/* OBSOLETE along with this program; if not, write to the Free Software */
+/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */
+/* OBSOLETE Boston, MA 02111-1307, USA. *x/ */
+/* OBSOLETE */
+/* OBSOLETE #include "defs.h" */
+/* OBSOLETE #include "symtab.h" */
+/* OBSOLETE #include "opcode/tahoe.h" */
+/* OBSOLETE */
+/* OBSOLETE /* Tahoe instructions are never longer than this. *x/ */
+/* OBSOLETE #define MAXLEN 62 */
+/* OBSOLETE */
+/* OBSOLETE /* Number of elements in the opcode table. *x/ */
+/* OBSOLETE #define NOPCODES (sizeof votstrs / sizeof votstrs[0]) */
+/* OBSOLETE */
+/* OBSOLETE static unsigned char *print_insn_arg (); */
+/* OBSOLETE */
+/* OBSOLETE /* Advance PC across any function entry prologue instructions */
+/* OBSOLETE to reach some "real" code. *x/ */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE tahoe_skip_prologue (pc) */
+/* OBSOLETE CORE_ADDR pc; */
+/* OBSOLETE { */
+/* OBSOLETE register int op = (unsigned char) read_memory_integer (pc, 1); */
+/* OBSOLETE if (op == 0x11) */
+/* OBSOLETE pc += 2; /* skip brb *x/ */
+/* OBSOLETE if (op == 0x13) */
+/* OBSOLETE pc += 3; /* skip brw *x/ */
+/* OBSOLETE if (op == 0x2c */
+/* OBSOLETE && ((unsigned char) read_memory_integer (pc + 2, 1)) == 0x5e) */
+/* OBSOLETE pc += 3; /* skip subl2 *x/ */
+/* OBSOLETE if (op == 0xe9 */
+/* OBSOLETE && ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xae */
+/* OBSOLETE && ((unsigned char) read_memory_integer (pc + 3, 1)) == 0x5e) */
+/* OBSOLETE pc += 4; /* skip movab *x/ */
+/* OBSOLETE if (op == 0xe9 */
+/* OBSOLETE && ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xce */
+/* OBSOLETE && ((unsigned char) read_memory_integer (pc + 4, 1)) == 0x5e) */
+/* OBSOLETE pc += 5; /* skip movab *x/ */
+/* OBSOLETE if (op == 0xe9 */
+/* OBSOLETE && ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xee */
+/* OBSOLETE && ((unsigned char) read_memory_integer (pc + 6, 1)) == 0x5e) */
+/* OBSOLETE pc += 7; /* skip movab *x/ */
+/* OBSOLETE return pc; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Return number of args passed to a frame. */
+/* OBSOLETE Can return -1, meaning no way to tell. *x/ */
+/* OBSOLETE */
+/* OBSOLETE int */
+/* OBSOLETE tahoe_frame_num_args (fi) */
+/* OBSOLETE struct frame_info *fi; */
+/* OBSOLETE { */
+/* OBSOLETE return (((0xffff & read_memory_integer (((fi)->frame - 4), 4)) - 4) >> 2); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Print the Tahoe instruction at address MEMADDR in debugged memory, */
+/* OBSOLETE on STREAM. Returns length of the instruction, in bytes. *x/ */
+/* OBSOLETE */
+/* OBSOLETE int */
+/* OBSOLETE tahoe_print_insn (memaddr, stream) */
+/* OBSOLETE CORE_ADDR memaddr; */
+/* OBSOLETE struct ui_file *stream; */
+/* OBSOLETE { */
+/* OBSOLETE unsigned char buffer[MAXLEN]; */
+/* OBSOLETE register int i; */
+/* OBSOLETE register unsigned char *p; */
+/* OBSOLETE register char *d; */
+/* OBSOLETE */
+/* OBSOLETE read_memory (memaddr, buffer, MAXLEN); */
+/* OBSOLETE */
+/* OBSOLETE for (i = 0; i < NOPCODES; i++) */
+/* OBSOLETE if (votstrs[i].detail.code == buffer[0] */
+/* OBSOLETE || votstrs[i].detail.code == *(unsigned short *) buffer) */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE /* Handle undefined instructions. *x/ */
+/* OBSOLETE if (i == NOPCODES) */
+/* OBSOLETE { */
+/* OBSOLETE fprintf_unfiltered (stream, "0%o", buffer[0]); */
+/* OBSOLETE return 1; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE fprintf_unfiltered (stream, "%s", votstrs[i].name); */
+/* OBSOLETE */
+/* OBSOLETE /* Point at first byte of argument data, */
+/* OBSOLETE and at descriptor for first argument. *x/ */
+/* OBSOLETE p = buffer + 1 + (votstrs[i].detail.code >= 0x100); */
+/* OBSOLETE d = votstrs[i].detail.args; */
+/* OBSOLETE */
+/* OBSOLETE if (*d) */
+/* OBSOLETE fputc_unfiltered ('\t', stream); */
+/* OBSOLETE */
+/* OBSOLETE while (*d) */
+/* OBSOLETE { */
+/* OBSOLETE p = print_insn_arg (d, p, memaddr + (p - buffer), stream); */
+/* OBSOLETE d += 2; */
+/* OBSOLETE if (*d) */
+/* OBSOLETE fprintf_unfiltered (stream, ","); */
+/* OBSOLETE } */
+/* OBSOLETE return p - buffer; */
+/* OBSOLETE } */
+/* OBSOLETE /*******************************************************************x/ */
+/* OBSOLETE static unsigned char * */
+/* OBSOLETE print_insn_arg (d, p, addr, stream) */
+/* OBSOLETE char *d; */
+/* OBSOLETE register char *p; */
+/* OBSOLETE CORE_ADDR addr; */
+/* OBSOLETE struct ui_file *stream; */
+/* OBSOLETE { */
+/* OBSOLETE int temp1 = 0; */
+/* OBSOLETE register int regnum = *p & 0xf; */
+/* OBSOLETE float floatlitbuf; */
+/* OBSOLETE */
+/* OBSOLETE if (*d == 'b') */
+/* OBSOLETE { */
+/* OBSOLETE if (d[1] == 'b') */
+/* OBSOLETE fprintf_unfiltered (stream, "0x%x", addr + *p++ + 1); */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE */
+/* OBSOLETE temp1 = *p; */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 1); */
+/* OBSOLETE fprintf_unfiltered (stream, "0x%x", addr + temp1 + 2); */
+/* OBSOLETE p += 2; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE switch ((*p++ >> 4) & 0xf) */
+/* OBSOLETE { */
+/* OBSOLETE case 0: */
+/* OBSOLETE case 1: */
+/* OBSOLETE case 2: */
+/* OBSOLETE case 3: /* Literal (short immediate byte) mode *x/ */
+/* OBSOLETE if (d[1] == 'd' || d[1] == 'f' || d[1] == 'g' || d[1] == 'h') */
+/* OBSOLETE { */
+/* OBSOLETE *(int *) &floatlitbuf = 0x4000 + ((p[-1] & 0x3f) << 4); */
+/* OBSOLETE fprintf_unfiltered (stream, "$%f", floatlitbuf); */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE fprintf_unfiltered (stream, "$%d", p[-1] & 0x3f); */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE case 4: /* Indexed *x/ */
+/* OBSOLETE p = (char *) print_insn_arg (d, p, addr + 1, stream); */
+/* OBSOLETE fprintf_unfiltered (stream, "[%s]", REGISTER_NAME (regnum)); */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE case 5: /* Register *x/ */
+/* OBSOLETE fprintf_unfiltered (stream, REGISTER_NAME (regnum)); */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE case 7: /* Autodecrement *x/ */
+/* OBSOLETE fputc_unfiltered ('-', stream); */
+/* OBSOLETE case 6: /* Register deferred *x/ */
+/* OBSOLETE fprintf_unfiltered (stream, "(%s)", REGISTER_NAME (regnum)); */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE case 9: /* Absolute Address & Autoincrement deferred *x/ */
+/* OBSOLETE fputc_unfiltered ('*', stream); */
+/* OBSOLETE if (regnum == PC_REGNUM) */
+/* OBSOLETE { */
+/* OBSOLETE temp1 = *p; */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 1); */
+/* OBSOLETE */
+/* OBSOLETE fputc_unfiltered ('$', stream); */
+/* OBSOLETE print_address (temp1, stream); */
+/* OBSOLETE p += 4; */
+/* OBSOLETE break; */
+/* OBSOLETE } */
+/* OBSOLETE case 8: /*Immediate & Autoincrement SP *x/ */
+/* OBSOLETE if (regnum == 8) /*88 is Immediate Byte Mode *x/ */
+/* OBSOLETE fprintf_unfiltered (stream, "$%d", *p++); */
+/* OBSOLETE */
+/* OBSOLETE else if (regnum == 9) /*89 is Immediate Word Mode *x/ */
+/* OBSOLETE { */
+/* OBSOLETE temp1 = *p; */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 1); */
+/* OBSOLETE fprintf_unfiltered (stream, "$%d", temp1); */
+/* OBSOLETE p += 2; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE else if (regnum == PC_REGNUM) /*8F is Immediate Long Mode *x/ */
+/* OBSOLETE { */
+/* OBSOLETE temp1 = *p; */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 1); */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 2); */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 3); */
+/* OBSOLETE fprintf_unfiltered (stream, "$%d", temp1); */
+/* OBSOLETE p += 4; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE else /*8E is Autoincrement SP Mode *x/ */
+/* OBSOLETE fprintf_unfiltered (stream, "(%s)+", REGISTER_NAME (regnum)); */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE case 11: /* Register + Byte Displacement Deferred Mode *x/ */
+/* OBSOLETE fputc_unfiltered ('*', stream); */
+/* OBSOLETE case 10: /* Register + Byte Displacement Mode *x/ */
+/* OBSOLETE if (regnum == PC_REGNUM) */
+/* OBSOLETE print_address (addr + *p + 2, stream); */
+/* OBSOLETE else */
+/* OBSOLETE fprintf_unfiltered (stream, "%d(%s)", *p, REGISTER_NAME (regnum)); */
+/* OBSOLETE p += 1; */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE case 13: /* Register + Word Displacement Deferred Mode *x/ */
+/* OBSOLETE fputc_unfiltered ('*', stream); */
+/* OBSOLETE case 12: /* Register + Word Displacement Mode *x/ */
+/* OBSOLETE temp1 = *p; */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 1); */
+/* OBSOLETE if (regnum == PC_REGNUM) */
+/* OBSOLETE print_address (addr + temp1 + 3, stream); */
+/* OBSOLETE else */
+/* OBSOLETE fprintf_unfiltered (stream, "%d(%s)", temp1, REGISTER_NAME (regnum)); */
+/* OBSOLETE p += 2; */
+/* OBSOLETE break; */
+/* OBSOLETE */
+/* OBSOLETE case 15: /* Register + Long Displacement Deferred Mode *x/ */
+/* OBSOLETE fputc_unfiltered ('*', stream); */
+/* OBSOLETE case 14: /* Register + Long Displacement Mode *x/ */
+/* OBSOLETE temp1 = *p; */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 1); */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 2); */
+/* OBSOLETE temp1 <<= 8; */
+/* OBSOLETE temp1 |= *(p + 3); */
+/* OBSOLETE if (regnum == PC_REGNUM) */
+/* OBSOLETE print_address (addr + temp1 + 5, stream); */
+/* OBSOLETE else */
+/* OBSOLETE fprintf_unfiltered (stream, "%d(%s)", temp1, REGISTER_NAME (regnum)); */
+/* OBSOLETE p += 4; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE return (unsigned char *) p; */
+/* OBSOLETE } */
projects / deliverable / binutils-gdb.git / blobdiff