diff options
author | Andrew Cagney <cagney@redhat.com> | 2001-04-03 21:56:01 +0000 |
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committer | Andrew Cagney <cagney@redhat.com> | 2001-04-03 21:56:01 +0000 |
commit | 76f4ea530371ca00de43ca7ba423271c30dff61c (patch) | |
tree | 7bc5aa272eb97a9c46fee570b5917588250d723a /gdb/w65-tdep.c | |
parent | 52071915c8a3a3a971bde19ba1cdd4d08627b8c5 (diff) | |
download | gdb-76f4ea530371ca00de43ca7ba423271c30dff61c.zip gdb-76f4ea530371ca00de43ca7ba423271c30dff61c.tar.gz gdb-76f4ea530371ca00de43ca7ba423271c30dff61c.tar.bz2 |
Obsolete w65-*-* target.
Diffstat (limited to 'gdb/w65-tdep.c')
-rw-r--r-- | gdb/w65-tdep.c | 566 |
1 files changed, 283 insertions, 283 deletions
diff --git a/gdb/w65-tdep.c b/gdb/w65-tdep.c index 73b7973..eb2f955 100644 --- a/gdb/w65-tdep.c +++ b/gdb/w65-tdep.c @@ -1,283 +1,283 @@ -/* Target-machine dependent code for WDC-65816, for GDB. - Copyright 1995, 1996, 2000, 2001 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" -#include "regcache.h" - -/* Return the saved PC from this frame. */ - - -CORE_ADDR -w65_frame_saved_pc (struct frame_info *frame) -{ - return (read_memory_integer (frame->frame + 2, 4) & 0xffffff); -} - -CORE_ADDR -w65_addr_bits_remove (CORE_ADDR addr) -{ - return ((addr) & 0xffffff); -} - -read_memory_pointer (CORE_ADDR x) -{ - return read_memory_integer (ADDR_BITS_REMOVE (x), 4); -} - -init_frame_pc (void) -{ - internal_error (__FILE__, __LINE__, "failed internal consistency check"); -} - -void -w65_push_dummy_frame (void) -{ - internal_error (__FILE__, __LINE__, "failed internal consistency check"); -} - -/* 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 (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 (void) -{ - int sp = read_register (SP_REGNUM); - int val = read_memory_integer (sp + 1, 4); - return ADDR_BITS_REMOVE (val); -} - - -extract_return_value (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 (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 (CORE_ADDR addr, CORE_ADDR sp) -{ - write_register (2, addr); -} - -void -w65_pop_frame (void) -{ -} - -init_extra_frame_info (void) -{ -} - -pop_frame (void) -{ -} - -w65_frame_chain (struct frame_info *thisframe) -{ - return 0xffff & read_memory_integer ((thisframe)->frame, 2); -} - -static int -gb (int x) -{ - return read_memory_integer (x, 1) & 0xff; -} - -extern CORE_ADDR -w65_skip_prologue (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 (int n) -{ - return sim_reg_size (n); -} - - -void -print_register_hook (int 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 (void) -{ - 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 } */ |