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authorNiklas Hallqvist <niklas@cvs.openbsd.org>1996-01-08 11:10:27 +0000
committerNiklas Hallqvist <niklas@cvs.openbsd.org>1996-01-08 11:10:27 +0000
commit8b46c09925a80623c289e346c12921bc09fd1678 (patch)
tree01507d0da339cc7e5e6f5d16dfa625f94910b091 /gnu/usr.bin/binutils/gas/bit_fix.h
parent5d56227f9458a53138642c1b4488b4a30f85f334 (diff)
Initial GNU binutils 2.6 import
Diffstat (limited to 'gnu/usr.bin/binutils/gas/bit_fix.h')
-rw-r--r--gnu/usr.bin/binutils/gas/bit_fix.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/gnu/usr.bin/binutils/gas/bit_fix.h b/gnu/usr.bin/binutils/gas/bit_fix.h
new file mode 100644
index 00000000000..6a729a700c6
--- /dev/null
+++ b/gnu/usr.bin/binutils/gas/bit_fix.h
@@ -0,0 +1,51 @@
+/* write.h
+
+ Copyright (C) 1987, 1992 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__ */
+
+/* end of bit_fix.h */