| /* bit_fix.h |
| Copyright (C) 1987, 1992, 2000 Free Software Foundation, Inc. |
| |
| This file is part of GAS, the GNU Assembler. |
| |
| GAS 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, or (at your option) |
| any later version. |
| |
| GAS 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 GAS; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| /* The bit_fix was implemented to support machines that need variables |
| to be inserted in bitfields other than 1, 2 and 4 bytes. |
| Furthermore it gives us a possibillity to mask in bits in the symbol |
| when it's fixed in the objectcode and check the symbols limits. |
| |
| The or-mask is used to set the huffman bits in displacements for the |
| ns32k port. |
| The acbi, addqi, movqi, cmpqi instruction requires an assembler that |
| can handle bitfields. Ie handle an expression, evaluate it and insert |
| the result in an some bitfield. ( ex: 5 bits in a short field of a opcode) |
| */ |
| |
| #ifndef __bit_fix_h__ |
| #define __bit_fix_h__ |
| |
| struct bit_fix { |
| int fx_bit_size; /* Length of bitfield */ |
| int fx_bit_offset; /* Bit offset to bitfield */ |
| long fx_bit_base; /* Where do we apply the bitfix. |
| If this is zero, default is assumed. */ |
| long fx_bit_base_adj; /* Adjustment of base */ |
| long fx_bit_max; /* Signextended max for bitfield */ |
| long fx_bit_min; /* Signextended min for bitfield */ |
| long fx_bit_add; /* Or mask, used for huffman prefix */ |
| }; |
| typedef struct bit_fix bit_fixS; |
| |
| #endif /* __bit_fix_h__ */ |