-/* Target-machine dependent code for WDC-65816, for GDB.
- Copyright (C) 1995 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. */
-
-/*
- Contributed by Steve Chamberlain
- sac@cygnus.com
- */
-
-#include "defs.h"
-#include "frame.h"
-#include "obstack.h"
-#include "symtab.h"
-#include "gdbcmd.h"
-#include "gdbtypes.h"
-#include "dis-asm.h"
-#include "gdbcore.h"
-
-/* Return the saved PC from this frame. */
-
-
-CORE_ADDR
-w65_frame_saved_pc (frame)
- struct frame_info *frame;
-{
- return (read_memory_integer (frame->frame + 2, 4) & 0xffffff);
-}
-
-CORE_ADDR
-w65_addr_bits_remove (addr)
- CORE_ADDR addr;
-{
- return ((addr) & 0xffffff);
-}
-
-read_memory_pointer (x)
- CORE_ADDR x;
-{
- return read_memory_integer (ADDR_BITS_REMOVE (x), 4);
-}
-
-init_frame_pc ()
-{
- abort ();
-}
-
-void
-w65_push_dummy_frame ()
-{
- abort ();
-}
-
-/* Put here the code to store, into a struct frame_saved_regs,
- the addresses of the saved registers of frame described by FRAME_INFO.
- This includes special registers such as pc and fp saved in special
- ways in the stack frame. sp is even more special:
- the address we return for it IS the sp for the next frame.
-
- We cache the result of doing this in the frame_cache_obstack, since
- it is fairly expensive. */
-
-void
-frame_find_saved_regs (fip, fsrp)
- struct frame_info *fip;
- struct frame_saved_regs *fsrp;
-{
- int locals;
- CORE_ADDR pc;
- CORE_ADDR adr;
- int i;
-
- memset (fsrp, 0, sizeof *fsrp);
-}
-
-int
-saved_pc_after_call ()
-{
- int sp = read_register (SP_REGNUM);
- int val = read_memory_integer (sp + 1, 4);
- return ADDR_BITS_REMOVE (val);
-}
-
-
-extract_return_value (type, regbuf, valbuf)
- struct type *type;
- char *regbuf;
- char *valbuf;
-{
- int b;
- int len = TYPE_LENGTH (type);
-
- for (b = 0; b < len; b += 2)
- {
- int todo = len - b;
- if (todo > 2)
- todo = 2;
- memcpy (valbuf + b, regbuf + b, todo);
- }
-}
-
-void
-write_return_value (type, valbuf)
- struct type *type;
- char *valbuf;
-{
- int reg;
- int len;
- for (len = 0; len < TYPE_LENGTH (type); len += 2)
- {
- write_register_bytes (REGISTER_BYTE (len / 2 + 2), valbuf + len, 2);
- }
-}
-
-void
-store_struct_return (addr, sp)
- CORE_ADDR addr;
- CORE_ADDR sp;
-{
- write_register (2, addr);
-}
-
-void
-w65_pop_frame ()
-{
-}
-
-init_extra_frame_info ()
-{
-}
-
-pop_frame ()
-{
-}
-
-w65_frame_chain (thisframe)
- struct frame_info *thisframe;
-{
- return 0xffff & read_memory_integer ((thisframe)->frame, 2);
-}
-
-static int
-gb (x)
-{
- return read_memory_integer (x, 1) & 0xff;
-}
-
-extern CORE_ADDR
-w65_skip_prologue (pc)
- CORE_ADDR pc;
-{
- CORE_ADDR too_far = pc + 20;
-
- /* looking for bits of the prologue, we can expect to
- see this in a frameful function:
-
- stack adjust:
-
- 3B tsc
- 1A inc a
- 18 clc
- 69E2FF adc #0xffe2
- 3A dec a
- 1B tcs
- 1A inc a
-
- link:
-
- A500 lda <r15
- 48 pha
- 3B tsc
- 1a inc a
- 8500 sta <r15
-
- */
-
-#define TSC 0x3b
-#define TCS 0x1b
-#define INCA 0x1a
-#define PHA 0x48
-#define LDADIR 0xa5
-#define STADIR 0x85
-
- /* Skip a stack adjust - any area between a tsc and tcs */
- if (gb (pc) == TSC)
- {
- while (pc < too_far && gb (pc) != TCS)
- {
- pc++;
- }
- pc++;
- /* Skip a stupid inc a */
- if (gb (pc) == INCA)
- pc++;
-
- }
- /* Stack adjust can also be done with n pha's */
- while (gb (pc) == PHA)
- pc++;
-
- /* Skip a link - that's a ld/ph/tsc/inc/sta */
-
- if (gb (pc) == LDADIR
- && gb (pc + 5) == STADIR
- && gb (pc + 1) == gb (pc + 6)
- && gb (pc + 2) == PHA
- && gb (pc + 3) == TSC
- && gb (pc + 4) == INCA)
- {
- pc += 7;
- }
-
- return pc;
-}
-
-
-register_raw_size (n)
-{
- return sim_reg_size (n);
-}
-
-
-void
-print_register_hook (regno)
-{
- if (regno == P_REGNUM)
- {
- /* CCR register */
-
- int C, Z, N, V, I, D, X, M;
- unsigned char b[1];
- unsigned char l;
-
- read_relative_register_raw_bytes (regno, b);
- l = b[0];
- printf_unfiltered ("\t");
- C = (l & 0x1) != 0;
- Z = (l & 0x2) != 0;
- I = (l & 0x4) != 0;
- D = (l & 0x8) != 0;
- X = (l & 0x10) != 0;
- M = (l & 0x20) != 0;
- V = (l & 0x40) != 0;
- N = (l & 0x80) != 0;
-
- printf_unfiltered ("N-%d ", N);
- printf_unfiltered ("V-%d ", V);
- printf_unfiltered ("M-%d ", M);
- printf_unfiltered ("X-%d ", X);
- printf_unfiltered ("D-%d ", D);
- printf_unfiltered ("I-%d ", I);
- printf_unfiltered ("Z-%d ", Z);
- printf_unfiltered ("C-%d ", C);
- if ((C | Z) == 0)
- printf_unfiltered ("u> ");
- if ((C | Z) == 1)
- printf_unfiltered ("u<= ");
- if ((C == 0))
- printf_unfiltered ("u>= ");
- if (C == 1)
- printf_unfiltered ("u< ");
- if (Z == 0)
- printf_unfiltered ("!= ");
- if (Z == 1)
- printf_unfiltered ("== ");
- if ((N ^ V) == 0)
- printf_unfiltered (">= ");
- if ((N ^ V) == 1)
- printf_unfiltered ("< ");
- if ((Z | (N ^ V)) == 0)
- printf_unfiltered ("> ");
- if ((Z | (N ^ V)) == 1)
- printf_unfiltered ("<= ");
- }
-}
-
-void
-_initialize_w65_tdep ()
-{
- tm_print_insn = print_insn_w65;
-}
+/* OBSOLETE /* Target-machine dependent code for WDC-65816, for GDB. */
+/* OBSOLETE Copyright 1995, 1996, 2000, 2001 Free Software Foundation, Inc. */
+/* 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. */ */
+/* OBSOLETE */
+/* OBSOLETE /* */
+/* OBSOLETE Contributed by Steve Chamberlain */
+/* OBSOLETE sac@cygnus.com */
+/* OBSOLETE */ */
+/* OBSOLETE */
+/* OBSOLETE #include "defs.h" */
+/* OBSOLETE #include "frame.h" */
+/* OBSOLETE #include "obstack.h" */
+/* OBSOLETE #include "symtab.h" */
+/* OBSOLETE #include "gdbcmd.h" */
+/* OBSOLETE #include "gdbtypes.h" */
+/* OBSOLETE #include "dis-asm.h" */
+/* OBSOLETE #include "gdbcore.h" */
+/* OBSOLETE #include "regcache.h" */
+/* OBSOLETE */
+/* OBSOLETE /* Return the saved PC from this frame. */ */
+/* OBSOLETE */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE w65_frame_saved_pc (struct frame_info *frame) */
+/* OBSOLETE { */
+/* OBSOLETE return (read_memory_integer (frame->frame + 2, 4) & 0xffffff); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE CORE_ADDR */
+/* OBSOLETE w65_addr_bits_remove (CORE_ADDR addr) */
+/* OBSOLETE { */
+/* OBSOLETE return ((addr) & 0xffffff); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE read_memory_pointer (CORE_ADDR x) */
+/* OBSOLETE { */
+/* OBSOLETE return read_memory_integer (ADDR_BITS_REMOVE (x), 4); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE init_frame_pc (void) */
+/* OBSOLETE { */
+/* OBSOLETE internal_error (__FILE__, __LINE__, "failed internal consistency check"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE w65_push_dummy_frame (void) */
+/* OBSOLETE { */
+/* OBSOLETE internal_error (__FILE__, __LINE__, "failed internal consistency check"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, */
+/* OBSOLETE the addresses of the saved registers of frame described by FRAME_INFO. */
+/* OBSOLETE This includes special registers such as pc and fp saved in special */
+/* OBSOLETE ways in the stack frame. sp is even more special: */
+/* OBSOLETE the address we return for it IS the sp for the next frame. */
+/* OBSOLETE */
+/* OBSOLETE We cache the result of doing this in the frame_cache_obstack, since */
+/* OBSOLETE it is fairly expensive. */ */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE frame_find_saved_regs (struct frame_info *fip, struct frame_saved_regs *fsrp) */
+/* OBSOLETE { */
+/* OBSOLETE int locals; */
+/* OBSOLETE CORE_ADDR pc; */
+/* OBSOLETE CORE_ADDR adr; */
+/* OBSOLETE int i; */
+/* OBSOLETE */
+/* OBSOLETE memset (fsrp, 0, sizeof *fsrp); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE int */
+/* OBSOLETE saved_pc_after_call (void) */
+/* OBSOLETE { */
+/* OBSOLETE int sp = read_register (SP_REGNUM); */
+/* OBSOLETE int val = read_memory_integer (sp + 1, 4); */
+/* OBSOLETE return ADDR_BITS_REMOVE (val); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE */
+/* OBSOLETE extract_return_value (struct type *type, char *regbuf, char *valbuf) */
+/* OBSOLETE { */
+/* OBSOLETE int b; */
+/* OBSOLETE int len = TYPE_LENGTH (type); */
+/* OBSOLETE */
+/* OBSOLETE for (b = 0; b < len; b += 2) */
+/* OBSOLETE { */
+/* OBSOLETE int todo = len - b; */
+/* OBSOLETE if (todo > 2) */
+/* OBSOLETE todo = 2; */
+/* OBSOLETE memcpy (valbuf + b, regbuf + b, todo); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE write_return_value (struct type *type, char *valbuf) */
+/* OBSOLETE { */
+/* OBSOLETE int reg; */
+/* OBSOLETE int len; */
+/* OBSOLETE for (len = 0; len < TYPE_LENGTH (type); len += 2) */
+/* OBSOLETE { */
+/* OBSOLETE write_register_bytes (REGISTER_BYTE (len / 2 + 2), valbuf + len, 2); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE store_struct_return (CORE_ADDR addr, CORE_ADDR sp) */
+/* OBSOLETE { */
+/* OBSOLETE write_register (2, addr); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE w65_pop_frame (void) */
+/* OBSOLETE { */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE init_extra_frame_info (void) */
+/* OBSOLETE { */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE pop_frame (void) */
+/* OBSOLETE { */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE w65_frame_chain (struct frame_info *thisframe) */
+/* OBSOLETE { */
+/* OBSOLETE return 0xffff & read_memory_integer ((thisframe)->frame, 2); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE static int */
+/* OBSOLETE gb (int x) */
+/* OBSOLETE { */
+/* OBSOLETE return read_memory_integer (x, 1) & 0xff; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE extern CORE_ADDR */
+/* OBSOLETE w65_skip_prologue (CORE_ADDR pc) */
+/* OBSOLETE { */
+/* OBSOLETE CORE_ADDR too_far = pc + 20; */
+/* OBSOLETE */
+/* OBSOLETE /* looking for bits of the prologue, we can expect to */
+/* OBSOLETE see this in a frameful function: */
+/* OBSOLETE */
+/* OBSOLETE stack adjust: */
+/* OBSOLETE */
+/* OBSOLETE 3B tsc */
+/* OBSOLETE 1A inc a */
+/* OBSOLETE 18 clc */
+/* OBSOLETE 69E2FF adc #0xffe2 */
+/* OBSOLETE 3A dec a */
+/* OBSOLETE 1B tcs */
+/* OBSOLETE 1A inc a */
+/* OBSOLETE */
+/* OBSOLETE link: */
+/* OBSOLETE */
+/* OBSOLETE A500 lda <r15 */
+/* OBSOLETE 48 pha */
+/* OBSOLETE 3B tsc */
+/* OBSOLETE 1a inc a */
+/* OBSOLETE 8500 sta <r15 */
+/* OBSOLETE */
+/* OBSOLETE */ */
+/* OBSOLETE */
+/* OBSOLETE #define TSC 0x3b */
+/* OBSOLETE #define TCS 0x1b */
+/* OBSOLETE #define INCA 0x1a */
+/* OBSOLETE #define PHA 0x48 */
+/* OBSOLETE #define LDADIR 0xa5 */
+/* OBSOLETE #define STADIR 0x85 */
+/* OBSOLETE */
+/* OBSOLETE /* Skip a stack adjust - any area between a tsc and tcs */ */
+/* OBSOLETE if (gb (pc) == TSC) */
+/* OBSOLETE { */
+/* OBSOLETE while (pc < too_far && gb (pc) != TCS) */
+/* OBSOLETE { */
+/* OBSOLETE pc++; */
+/* OBSOLETE } */
+/* OBSOLETE pc++; */
+/* OBSOLETE /* Skip a stupid inc a */ */
+/* OBSOLETE if (gb (pc) == INCA) */
+/* OBSOLETE pc++; */
+/* OBSOLETE */
+/* OBSOLETE } */
+/* OBSOLETE /* Stack adjust can also be done with n pha's */ */
+/* OBSOLETE while (gb (pc) == PHA) */
+/* OBSOLETE pc++; */
+/* OBSOLETE */
+/* OBSOLETE /* Skip a link - that's a ld/ph/tsc/inc/sta */ */
+/* OBSOLETE */
+/* OBSOLETE if (gb (pc) == LDADIR */
+/* OBSOLETE && gb (pc + 5) == STADIR */
+/* OBSOLETE && gb (pc + 1) == gb (pc + 6) */
+/* OBSOLETE && gb (pc + 2) == PHA */
+/* OBSOLETE && gb (pc + 3) == TSC */
+/* OBSOLETE && gb (pc + 4) == INCA) */
+/* OBSOLETE { */
+/* OBSOLETE pc += 7; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE return pc; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE */
+/* OBSOLETE register_raw_size (int n) */
+/* OBSOLETE { */
+/* OBSOLETE return sim_reg_size (n); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE print_register_hook (int regno) */
+/* OBSOLETE { */
+/* OBSOLETE if (regno == P_REGNUM) */
+/* OBSOLETE { */
+/* OBSOLETE /* CCR register */ */
+/* OBSOLETE */
+/* OBSOLETE int C, Z, N, V, I, D, X, M; */
+/* OBSOLETE unsigned char b[1]; */
+/* OBSOLETE unsigned char l; */
+/* OBSOLETE */
+/* OBSOLETE read_relative_register_raw_bytes (regno, b); */
+/* OBSOLETE l = b[0]; */
+/* OBSOLETE printf_unfiltered ("\t"); */
+/* OBSOLETE C = (l & 0x1) != 0; */
+/* OBSOLETE Z = (l & 0x2) != 0; */
+/* OBSOLETE I = (l & 0x4) != 0; */
+/* OBSOLETE D = (l & 0x8) != 0; */
+/* OBSOLETE X = (l & 0x10) != 0; */
+/* OBSOLETE M = (l & 0x20) != 0; */
+/* OBSOLETE V = (l & 0x40) != 0; */
+/* OBSOLETE N = (l & 0x80) != 0; */
+/* OBSOLETE */
+/* OBSOLETE printf_unfiltered ("N-%d ", N); */
+/* OBSOLETE printf_unfiltered ("V-%d ", V); */
+/* OBSOLETE printf_unfiltered ("M-%d ", M); */
+/* OBSOLETE printf_unfiltered ("X-%d ", X); */
+/* OBSOLETE printf_unfiltered ("D-%d ", D); */
+/* OBSOLETE printf_unfiltered ("I-%d ", I); */
+/* OBSOLETE printf_unfiltered ("Z-%d ", Z); */
+/* OBSOLETE printf_unfiltered ("C-%d ", C); */
+/* OBSOLETE if ((C | Z) == 0) */
+/* OBSOLETE printf_unfiltered ("u> "); */
+/* OBSOLETE if ((C | Z) == 1) */
+/* OBSOLETE printf_unfiltered ("u<= "); */
+/* OBSOLETE if ((C == 0)) */
+/* OBSOLETE printf_unfiltered ("u>= "); */
+/* OBSOLETE if (C == 1) */
+/* OBSOLETE printf_unfiltered ("u< "); */
+/* OBSOLETE if (Z == 0) */
+/* OBSOLETE printf_unfiltered ("!= "); */
+/* OBSOLETE if (Z == 1) */
+/* OBSOLETE printf_unfiltered ("== "); */
+/* OBSOLETE if ((N ^ V) == 0) */
+/* OBSOLETE printf_unfiltered (">= "); */
+/* OBSOLETE if ((N ^ V) == 1) */
+/* OBSOLETE printf_unfiltered ("< "); */
+/* OBSOLETE if ((Z | (N ^ V)) == 0) */
+/* OBSOLETE printf_unfiltered ("> "); */
+/* OBSOLETE if ((Z | (N ^ V)) == 1) */
+/* OBSOLETE printf_unfiltered ("<= "); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE _initialize_w65_tdep (void) */
+/* OBSOLETE { */
+/* OBSOLETE tm_print_insn = print_insn_w65; */
+/* OBSOLETE } */
projects / deliverable / binutils-gdb.git / blobdiff