projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5076de82 FF |
1 | /* Target definitions for GDB on an Altos 3068 (m68k running SVR2) |
| 2 | Copyright 1987, 1989, 1991, 1993 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GDB. | |
| 5 | ||
| 6 | This program is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | This program is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with this program; if not, write to the Free Software | |
| 6c9638b4 | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 5076de82 | 19 | |
| f46ffb9e JK |
20 | /* The child target can't deal with floating registers. */ |
| 21 | #define CANNOT_STORE_REGISTER(regno) ((regno) >= FP0_REGNUM) | |
| 22 | ||
| 5076de82 FF |
23 | /* Define BPT_VECTOR if it is different than the default. |
| 24 | This is the vector number used by traps to indicate a breakpoint. */ | |
| 25 | ||
| 26 | #define BPT_VECTOR 0xe | |
| 27 | ||
| 28 | /* Address of end of stack space. */ | |
| 29 | ||
| 30 | /*#define STACK_END_ADDR (0xffffff)*/ | |
| 31 | #define STACK_END_ADDR (0x1000000) | |
| 32 | ||
| 33 | /* Amount PC must be decremented by after a breakpoint. | |
| 34 | On the Altos, the kernel resets the pc to the trap instr */ | |
| 35 | ||
| 36 | #define DECR_PC_AFTER_BREAK 0 | |
| 37 | ||
| 38 | /* The only reason this is here is the tm-altos.h reference below. It | |
| 2225eb85 | 39 | was moved back here from tm-m68k.h. FIXME? */ |
| 5076de82 FF |
40 | |
| 41 | #define SKIP_PROLOGUE(pc) \ | |
| 42 | { register int op = read_memory_integer (pc, 2); \ | |
| 43 | if (op == 0047126) \ | |
| 44 | pc += 4; /* Skip link #word */ \ | |
| 45 | else if (op == 0044016) \ | |
| 46 | pc += 6; /* Skip link #long */ \ | |
| 47 | /* Not sure why branches are here. */ \ | |
| 48 | /* From tm-isi.h, tm-altos.h */ \ | |
| 49 | else if (op == 0060000) \ | |
| 50 | pc += 4; /* Skip bra #word */ \ | |
| 51 | else if (op == 00600377) \ | |
| 52 | pc += 6; /* skip bra #long */ \ | |
| 53 | else if ((op & 0177400) == 0060000) \ | |
| 54 | pc += 2; /* skip bra #char */ \ | |
| 55 | } | |
| 56 | ||
| 2225eb85 | 57 | #include "m68k/tm-m68k.h" |