1 /* Target-dependent header for the MIPS architecture, for GDB, the GNU Debugger.
3 Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
27 /* All the possible MIPS ABIs. */
40 /* Return the MIPS ABI associated with GDBARCH. */
41 enum mips_abi
mips_abi (struct gdbarch
*gdbarch
);
43 /* Return the MIPS ISA's register size. Just a short cut to the BFD
44 architecture's word size. */
45 extern int mips_isa_regsize (struct gdbarch
*gdbarch
);
47 /* Return the current index for various MIPS registers. */
52 int fp_implementation_revision
;
53 int fp_control_status
;
54 int badvaddr
; /* Bad vaddr for addressing exception. */
55 int cause
; /* Describes last exception. */
56 int hi
; /* Multiply/divide temp. */
59 extern const struct mips_regnum
*mips_regnum (struct gdbarch
*gdbarch
);
61 /* Register numbers of various important registers. */
65 MIPS_ZERO_REGNUM
= 0, /* Read-only register, always 0. */
67 MIPS_V0_REGNUM
= 2, /* Function integer return value. */
68 MIPS_A0_REGNUM
= 4, /* Loc of first arg during a subr call */
69 MIPS_T9_REGNUM
= 25, /* Contains address of callee in PIC. */
72 MIPS_PS_REGNUM
= 32, /* Contains processor status. */
73 MIPS_EMBED_LO_REGNUM
= 33,
74 MIPS_EMBED_HI_REGNUM
= 34,
75 MIPS_EMBED_BADVADDR_REGNUM
= 35,
76 MIPS_EMBED_CAUSE_REGNUM
= 36,
77 MIPS_EMBED_PC_REGNUM
= 37,
78 MIPS_EMBED_FP0_REGNUM
= 38,
79 MIPS_UNUSED_REGNUM
= 73, /* Never used, FIXME */
80 MIPS_FIRST_EMBED_REGNUM
= 74, /* First CP0 register for embedded use. */
81 MIPS_PRID_REGNUM
= 89, /* Processor ID. */
82 MIPS_LAST_EMBED_REGNUM
= 89 /* Last one. */
85 /* Defined in mips-tdep.c and used in remote-mips.c */
86 extern void deprecated_mips_set_processor_regs_hack (void);
88 /* Instruction sizes and other useful constants. */
93 /* The number of floating-point or integer registers. */
97 /* Single step based on where the current instruction will take us. */
98 extern int mips_software_single_step (struct regcache
*regcache
);
100 /* Tell if the program counter value in MEMADDR is in a MIPS16
102 extern int mips_pc_is_mips16 (bfd_vma memaddr
);
104 /* Return the currently configured (or set) saved register size. */
105 extern unsigned int mips_abi_regsize (struct gdbarch
*gdbarch
);
107 #endif /* MIPS_TDEP_H */