3a69b3aca6
Cherrypick from master 1991-04-04 18:19:53 UTC K. Richard Pixley <rich@cygnus> 'Initial revision':
gas/COPYING
gas/ChangeLog
gas/Makefile.in
gas/README
gas/app.c
gas/as.c
gas/as.h
gas/atof-generic.c
gas/bignum-copy.c
gas/bignum.h
gas/cond.c
gas/config/atof-ieee.c
gas/config/atof-vax.c
gas/config/obj-aout.c
gas/config/obj-aout.h
gas/config/obj-bout.c
gas/config/obj-bout.h
gas/config/obj-coff.c
gas/config/obj-coff.h
gas/config/tc-a29k.c
gas/config/tc-a29k.h
gas/config/tc-generic.c
gas/config/tc-generic.h
gas/config/tc-i386.c
gas/config/tc-i386.h
gas/config/tc-i860.c
gas/config/tc-i860.h
gas/config/tc-i960.c
gas/config/tc-i960.h
gas/config/tc-m68851.h
gas/config/tc-m68k.c
gas/config/tc-m68k.h
gas/config/tc-ns32k.c
gas/config/tc-ns32k.h
gas/config/tc-sparc.c
gas/config/tc-sparc.h
gas/config/tc-vax.c
gas/config/tc-vax.h
gas/config/te-generic.h
gas/config/te-ic960.h
gas/config/te-sun3.h
gas/config/vax-inst.h
gas/configure
gas/configure.in
gas/debug.c
gas/expr.c
gas/expr.h
gas/flonum-copy.c
gas/flonum-mult.c
gas/flonum.h
gas/frags.c
gas/frags.h
gas/hash.c
gas/hash.h
gas/input-file.c
gas/input-file.h
gas/input-scrub.c
gas/messages.c
gas/obj.h
gas/output-file.c
gas/output-file.h
gas/read.c
gas/read.h
gas/struc-symbol.h
gas/subsegs.c
gas/subsegs.h
gas/symbols.c
gas/symbols.h
gas/tc.h
gas/write.c
gas/write.h
ld/ld.h
ld/ldexp.c
ld/ldfile.c
ld/ldfile.h
ld/ldlang.h
ld/ldlex.h
ld/ldmain.h
ld/ldmisc.h
ld/ldwrite.h
Cherrypick from master 1991-03-21 21:29:06 UTC David Henkel-Wallace <gumby@cygnus> 'Initial revision':
ld/ldexp.h
ld/ldgram.y
ld/ldlang.c
ld/ldlex.l
ld/ldmain.c
ld/ldmisc.c
ld/ldwrite.c
Cherrypick from master 1991-01-17 15:34:55 UTC Roland Pesch <pesch@cygnus> 'Initial revision':
gas/doc/as.texinfo
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* flonum_copy.c - copy a flonum
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Copyright (C) 1987, 1990, 1991 Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* static const char rcsid[] = "$Id$"; */
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#include "as.h"
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#ifdef USG
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#define bzero(s,n) memset(s,0,n)
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#define bcopy(from,to,n) memcpy(to,from,n)
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#endif
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void
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flonum_copy (in, out)
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FLONUM_TYPE * in;
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FLONUM_TYPE * out;
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{
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int in_length; /* 0 origin */
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int out_length; /* 0 origin */
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out -> sign = in -> sign;
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in_length = in -> leader - in -> low;
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if (in_length < 0)
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{
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out -> leader = out -> low - 1; /* 0.0 case */
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}
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else
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{
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out_length = out -> high - out -> low;
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/*
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* Assume no GAPS in packing of littlenums.
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* I.e. sizeof(array) == sizeof(element) * number_of_elements.
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*/
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if (in_length <= out_length)
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{
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{
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/*
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* For defensive programming, zero any high-order littlenums we don't need.
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* This is destroying evidence and wasting time, so why bother???
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*/
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if (in_length < out_length)
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{
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bzero ((char *)(out->low + in_length + 1), out_length - in_length);
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}
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}
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bcopy ((char *)(in->low), (char *)(out->low), (int)((in_length + 1) * sizeof(LITTLENUM_TYPE)));
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out -> exponent = in -> exponent;
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out -> leader = in -> leader - in -> low + out -> low;
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}
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else
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{
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int shorten; /* 1-origin. Number of littlenums we drop. */
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shorten = in_length - out_length;
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/* Assume out_length >= 0 ! */
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bcopy ((char *)(in->low + shorten),(char *)( out->low), (int)((out_length + 1) * sizeof(LITTLENUM_TYPE)));
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out -> leader = out -> high;
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out -> exponent = in -> exponent + shorten;
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}
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} /* if any significant bits */
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}
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/* end: flonum_copy.c */
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