projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 748894bf MK |
1 | /* Target-dependent code for the Motorola 68000 series. |
| 2 | ||
| 3 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, | |
| 4 | 2001, 2003, 2004 Free Software Foundation, Inc. | |
| 32eeb91a AS |
5 | |
| 6 | This file is part of GDB. | |
| 7 | ||
| 8 | This program is free software; you can redistribute it and/or modify | |
| 9 | it under the terms of the GNU General Public License as published by | |
| 10 | the Free Software Foundation; either version 2 of the License, or | |
| 11 | (at your option) any later version. | |
| 12 | ||
| 13 | This program is distributed in the hope that it will be useful, | |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | GNU General Public License for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU General Public License | |
| 19 | along with this program; if not, write to the Free Software | |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 | Boston, MA 02111-1307, USA. */ | |
| 22 | ||
| 23 | #ifndef M68K_TDEP_H | |
| 24 | #define M68K_TDEP_H | |
| 25 | ||
| 8de307e0 AS |
26 | struct frame_info; |
| 27 | ||
| 748894bf | 28 | /* Register numbers of various important registers. */ |
| 32eeb91a | 29 | |
| 748894bf | 30 | enum m68k_regnum |
| 32eeb91a AS |
31 | { |
| 32 | M68K_D0_REGNUM = 0, | |
| 8de307e0 | 33 | M68K_D1_REGNUM = 1, |
| c0c2b0db MK |
34 | M68K_D2_REGNUM = 2, |
| 35 | M68K_D7_REGNUM = 7, | |
| 32eeb91a AS |
36 | M68K_A0_REGNUM = 8, |
| 37 | M68K_A1_REGNUM = 9, | |
| c0c2b0db | 38 | M68K_A2_REGNUM = 10, |
| 748894bf MK |
39 | M68K_FP_REGNUM = 14, /* Address of executing stack frame. */ |
| 40 | M68K_SP_REGNUM = 15, /* Address of top of stack. */ | |
| 41 | M68K_PS_REGNUM = 16, /* Processor status. */ | |
| 42 | M68K_PC_REGNUM = 17, /* Program counter. */ | |
| 43 | M68K_FP0_REGNUM = 18, /* Floating point register 0. */ | |
| 44 | M68K_FPC_REGNUM = 26, /* 68881 control register. */ | |
| 45 | M68K_FPS_REGNUM = 27, /* 68881 status register. */ | |
| 32eeb91a AS |
46 | M68K_FPI_REGNUM = 28 |
| 47 | }; | |
| 48 | ||
| 748894bf MK |
49 | /* Number of machine registers. */ |
| 50 | #define M68K_NUM_REGS (M68K_FPI_REGNUM + 1) | |
| 8de307e0 AS |
51 | |
| 52 | /* Size of the largest register. */ | |
| 53 | #define M68K_MAX_REGISTER_SIZE 12 | |
| 54 | ||
| c481dac7 AS |
55 | /* Convention for returning structures. */ |
| 56 | ||
| 57 | enum struct_return | |
| 58 | { | |
| 59 | pcc_struct_return, /* Return "short" structures in memory. */ | |
| 60 | reg_struct_return /* Return "short" structures in registers. */ | |
| 61 | }; | |
| 62 | ||
| eb2e12d7 | 63 | /* Target-dependent structure in gdbarch. */ |
| 748894bf | 64 | |
| eb2e12d7 AS |
65 | struct gdbarch_tdep |
| 66 | { | |
| 67 | /* Offset to PC value in the jump buffer. If this is negative, | |
| 68 | longjmp support will be disabled. */ | |
| 69 | int jb_pc; | |
| 70 | /* The size of each entry in the jump buffer. */ | |
| 71 | size_t jb_elt_size; | |
| 8de307e0 | 72 | |
| f595cb19 MK |
73 | /* Register in which the address to store a structure value is |
| 74 | passed to a function. */ | |
| 75 | int struct_value_regnum; | |
| 76 | ||
| c481dac7 AS |
77 | /* Convention for returning structures. */ |
| 78 | enum struct_return struct_return; | |
| eb2e12d7 AS |
79 | }; |
| 80 | ||
| f595cb19 MK |
81 | /* Initialize a SVR4 architecture variant. */ |
| 82 | extern void m68k_svr4_init_abi (struct gdbarch_info, struct gdbarch *); | |
| 83 | \f | |
| 84 | ||
| 511dd2cd MK |
85 | /* Functions exported from m68kbsd-tdep.c. */ |
| 86 | ||
| 87 | extern int m68kbsd_fpreg_offset (int regnum); | |
| 88 | ||
| 748894bf | 89 | #endif /* m68k-tdep.h */ |